optimize check function

.circleci/config.yml

@@ -0,0 +1,256 @@
+version: 2.1
+
+commands:
+  submodules:
+    steps:
+      - run:
+          name: "Pull submodules"
+          command: git submodule update --init
+  apt-dependencies:
+    parameters:
+      llvm:
+        type: string
+    steps:
+      - run:
+          name: "Install apt dependencies"
+          command: |
+            echo 'deb http://apt.llvm.org/stretch/ llvm-toolchain-stretch<<parameters.llvm>> main' | sudo tee /etc/apt/sources.list.d/llvm.list
+            wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
+            sudo apt-get update
+            sudo apt-get install \
+                python3 \
+                llvm<<parameters.llvm>>-dev \
+                clang<<parameters.llvm>> \
+                libclang<<parameters.llvm>>-dev \
+                lld<<parameters.llvm>> \
+                gcc-arm-linux-gnueabihf \
+                libc6-dev-armel-cross \
+                gcc-aarch64-linux-gnu \
+                libc6-dev-arm64-cross \
+                qemu-system-arm \
+                qemu-user \
+                gcc-avr \
+                avr-libc
+  install-node:
+    steps:
+      - run:
+          name: "Install node.js"
+          command: |
+            wget https://nodejs.org/dist/v10.15.1/node-v10.15.1-linux-x64.tar.xz
+            sudo tar -C /usr/local -xf node-v10.15.1-linux-x64.tar.xz
+            sudo ln -s /usr/local/node-v10.15.1-linux-x64/bin/node /usr/bin/node
+            rm node-v10.15.1-linux-x64.tar.xz
+  llvm-source-linux:
+    steps:
+      - restore_cache:
+          keys:
+            - llvm-source-8-v5
+      - run:
+          name: "Fetch LLVM source"
+          command: make llvm-source
+      - save_cache:
+          key: llvm-source-8-v5
+          paths:
+            - llvm-project
+  test-linux:
+    steps:
+      - checkout
+      - submodules
+      - apt-dependencies:
+          llvm: "-8"
+      - install-node
+      - restore_cache:
+          keys:
+            - go-cache-{{ checksum "Gopkg.lock" }}-{{ .Environment.CIRCLE_PREVIOUS_BUILD_NUM }}
+            - go-cache-{{ checksum "Gopkg.lock" }}
+      - llvm-source-linux
+      - run: go install .
+      - run: go test -v
+      - run: make gen-device -j4
+      - run: make smoketest RISCV=0
+      - save_cache:
+          key: go-cache-{{ checksum "Gopkg.lock" }}-{{ .Environment.CIRCLE_BUILD_NUM }}
+          paths:
+            - ~/.cache/go-build
+            - ~/.cache/tinygo
+      - run: make fmt-check
+  build-linux:
+    steps:
+      - checkout
+      - submodules
+      - run:
+          name: "Install apt dependencies"
+          command: |
+            sudo apt-get install \
+                python3 \
+                gcc-arm-linux-gnueabihf \
+                binutils-arm-none-eabi \
+                libc6-dev-armel-cross \
+                gcc-aarch64-linux-gnu \
+                libc6-dev-arm64-cross \
+                qemu-system-arm \
+                qemu-user \
+                gcc-avr \
+                avr-libc
+      - install-node
+      - restore_cache:
+          keys:
+            - go-cache-{{ checksum "Gopkg.lock" }}-{{ .Environment.CIRCLE_PREVIOUS_BUILD_NUM }}
+            - go-cache-{{ checksum "Gopkg.lock" }}
+      - llvm-source-linux
+      - restore_cache:
+          keys:
+            - llvm-build-8-linux-v7
+      - run:
+          name: "Build LLVM"
+          command: |
+            if [ ! -f llvm-build/lib/liblldELF.a ]
+            then
+              # install dependencies
+              sudo apt-get install cmake clang ninja-build
+              # make build faster
+              export CC=clang
+              export CXX=clang++
+              # hack ninja to use less jobs
+              echo -e '#!/bin/sh\n/usr/bin/ninja -j3 "$@"' > /go/bin/ninja
+              chmod +x /go/bin/ninja
+              # build!
+              make llvm-build
+            fi
+      - save_cache:
+          key: llvm-build-8-linux-v7
+          paths:
+            llvm-build
+      - run:
+          name: "Create LLVM symlinks"
+          command: |
+            ln -s $PWD/llvm-build/bin/clang-8 /go/bin/clang-8
+            ln -s $PWD/llvm-build/bin/ld.lld  /go/bin/ld.lld-8
+            ln -s $PWD/llvm-build/bin/wasm-ld /go/bin/wasm-ld-8
+      - run:
+          name: "Test TinyGo"
+          command: make test
+      - run:
+          name: "Build TinyGo release"
+          command: |
+            make release -j3
+            cp -p build/release.tar.gz /tmp/tinygo.linux-amd64.tar.gz
+      - store_artifacts:
+          path: /tmp/tinygo.linux-amd64.tar.gz
+      - save_cache:
+          key: go-cache-{{ checksum "Gopkg.lock" }}-{{ .Environment.CIRCLE_BUILD_NUM }}
+          paths:
+            - ~/.cache/go-build
+            - ~/.cache/tinygo
+      - run:
+          name: "Extract release tarball"
+          command: |
+            mkdir -p ~/lib
+            tar -C ~/lib -xf /tmp/tinygo.linux-amd64.tar.gz
+            ln -s ~/lib/tinygo/bin/tinygo /go/bin/tinygo
+            tinygo version
+      - run:
+          name: "Download SiFive GNU toolchain"
+          command: |
+            curl -O https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-8.2.0-2019.05.3-x86_64-linux-ubuntu14.tar.gz
+            sudo tar -C /usr/local --strip-components=1 -xf riscv64-unknown-elf-gcc-8.2.0-2019.05.3-x86_64-linux-ubuntu14.tar.gz
+      - run: make smoketest
+  build-macos:
+    steps:
+      - checkout
+      - submodules
+      - run:
+          name: "Install dependencies"
+          command: |
+            curl https://dl.google.com/go/go1.12.5.darwin-amd64.tar.gz -o go1.12.5.darwin-amd64.tar.gz
+            sudo tar -C /usr/local -xzf go1.12.5.darwin-amd64.tar.gz
+            ln -s /usr/local/go/bin/go /usr/local/bin/go
+            HOMEBREW_NO_AUTO_UPDATE=1 brew install qemu
+      - restore_cache:
+          keys:
+            - llvm-source-8-macos-v5
+      - run:
+          name: "Fetch LLVM source"
+          command: make llvm-source
+      - save_cache:
+          key: llvm-source-8-macos-v5
+          paths:
+            - llvm-project
+      - restore_cache:
+          keys:
+            - llvm-build-8-macos-v6
+      - run:
+          name: "Build LLVM"
+          command: |
+            if [ ! -f llvm-build/lib/liblldELF.a ]
+            then
+              # install dependencies
+              HOMEBREW_NO_AUTO_UPDATE=1 brew install cmake ninja
+              # build!
+              make llvm-build
+            fi
+      - save_cache:
+          key: llvm-build-8-macos-v6
+          paths:
+            llvm-build
+      - run:
+          name: "Create LLVM symlinks"
+          command: |
+            ln -s $PWD/llvm-build/bin/clang-8 /usr/local/bin/clang-8
+      - run:
+          name: "Test TinyGo"
+          command: make test
+      - run:
+          name: "Build TinyGo release"
+          command: |
+            make release -j3
+            cp -p build/release.tar.gz /tmp/tinygo.darwin-amd64.tar.gz
+      - store_artifacts:
+          path: /tmp/tinygo.darwin-amd64.tar.gz
+      - run:
+          name: "Extract release tarball"
+          command: |
+            mkdir -p ~/lib
+            tar -C /usr/local/opt -xf /tmp/tinygo.darwin-amd64.tar.gz
+            ln -s /usr/local/opt/tinygo/bin/tinygo /usr/local/bin/tinygo
+            tinygo version
+      - run:
+          name: "Download SiFive GNU toolchain"
+          command: |
+            curl -O https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-8.2.0-2019.05.3-x86_64-apple-darwin.tar.gz
+            sudo tar -C /usr/local --strip-components=1 -xf riscv64-unknown-elf-gcc-8.2.0-2019.05.3-x86_64-apple-darwin.tar.gz
+      - run: make smoketest AVR=0
+
+
+jobs:
+  test-llvm8-go111:
+    docker:
+      - image: circleci/golang:1.11-stretch
+    steps:
+      - test-linux
+  test-llvm8-go112:
+    docker:
+      - image: circleci/golang:1.12-stretch
+    steps:
+      - test-linux
+  build-linux:
+    docker:
+      - image: circleci/golang:1.12-stretch
+    steps:
+      - build-linux
+  build-macos:
+    macos:
+      xcode: "10.1.0"
+    steps:
+      - build-macos
+
+
+
+
+workflows:
+  test-all:
+    jobs:
+      - test-llvm8-go111
+      - test-llvm8-go112
+      - build-linux
+      - build-macos

.dockerignore

@@ -1,4 +0,0 @@
-build/
-llvm-*/
-.github
-

.github/FUNDING.yml

@@ -1,3 +0,0 @@
-# These are supported funding model platforms
-
-open_collective: tinygo

.github/workflows/build-macos.yml

@@ -1,145 +0,0 @@
-name: macOS
-
-on:
-  pull_request:
-  push:
-    branches:
-      - dev
-      - release
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  build-macos:
-    name: build-macos
-    strategy:
-      matrix:
-        # macos-14: arm64 (oldest supported version as of 18-11-2025)
-        # macos-15-intel: amd64 (last intel version to be supported by github runners)
-        # See https://github.com/actions/runner-images/issues/13046
-        os: [macos-14, macos-15-intel]
-        include:
-          - os: macos-14
-            goarch: arm64
-          - os: macos-15-intel
-            goarch: amd64
-    runs-on: ${{ matrix.os }}
-    steps:
-      - name: Install Dependencies
-        run: |
-          HOMEBREW_NO_AUTO_UPDATE=1 brew install qemu binaryen
-      - name: Checkout
-        uses: actions/checkout@v6
-        with:
-          submodules: true
-      - name: Extract TinyGo version
-        id: version
-        run: ./.github/workflows/tinygo-extract-version.sh | tee -a "$GITHUB_OUTPUT"
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Restore LLVM source cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-source
-        with:
-          key: llvm-source-22-${{ matrix.os }}-v1
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Download LLVM source
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        run: make llvm-source
-      - name: Save LLVM source cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Restore LLVM build cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-build
-        with:
-          key: llvm-build-22-${{ matrix.os }}-v1
-          path: llvm-build
-      - name: Build LLVM
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        run: |
-          # fetch LLVM source
-          rm -rf llvm-project
-          make llvm-source
-          # install dependencies
-          HOMEBREW_NO_AUTO_UPDATE=1 brew install ninja
-          # build!
-          make llvm-build
-          find llvm-build -name CMakeFiles -prune -exec rm -r '{}' \;
-      - name: Save LLVM build cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-build.outputs.cache-primary-key }}
-          path: llvm-build
-      - name: make gen-device
-        run: make -j3 gen-device
-      - name: Test TinyGo
-        run: make test GOTESTFLAGS="-only-current-os"
-      - name: Build TinyGo release tarball
-        run: make release -j3
-      - name: Test stdlib packages
-        run: make tinygo-test
-      - name: Make release artifact
-        run: cp -p build/release.tar.gz build/tinygo${{ steps.version.outputs.version }}.darwin-${{ matrix.goarch }}.tar.gz
-      - name: Publish release artifact
-        uses: actions/upload-artifact@v7
-        with:
-          name: darwin-${{ matrix.goarch }}-double-zipped-${{ steps.version.outputs.version }}
-          path: build/tinygo${{ steps.version.outputs.version }}.darwin-${{ matrix.goarch }}.tar.gz
-          archive: false
-      - name: Smoke tests
-        run: make smoketest TINYGO=$(PWD)/build/tinygo
-  test-macos-homebrew:
-    name: homebrew-install
-    runs-on: macos-latest
-    strategy:
-      matrix:
-        version: [16, 17, 18, 19, 20]
-    steps:
-      - name: Set up Homebrew
-        uses: Homebrew/actions/setup-homebrew@main
-      - name: Fix Python symlinks
-        run: |
-          # Github runners have broken symlinks, so relink
-          # see: https://github.com/actions/setup-python/issues/577
-          brew list -1 | grep python | while read formula; do brew unlink $formula; brew link --overwrite $formula; done
-      - name: Install LLVM
-        run: |
-          brew install llvm@${{ matrix.version }}
-          brew link llvm@${{ matrix.version }}
-      - name: Checkout
-        uses: actions/checkout@v6
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Build TinyGo (LLVM ${{ matrix.version }})
-        run: go install -tags=llvm${{ matrix.version }}
-      - name: Check binary
-        run: tinygo version
-      - name: Build TinyGo (default LLVM)
-        if: matrix.version == 20
-        run: go install
-      - name: Check binary
-        if: matrix.version == 20
-        run: tinygo version

.github/workflows/compat.yml

@@ -1,72 +0,0 @@
-# This CI job checks whether at least the smoke tests pass for the oldest
-# Go/LLVM version we claim to support.
-
-name: Version compatibility test
-
-on:
-  pull_request:
-  push:
-    branches:
-      - dev
-      - release
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  test-compat:
-    runs-on: ubuntu-22.04 # this must be a specific version for the apt install below
-    env:
-      # Oldest versions currently supported by TinyGo
-      LLVM: "15"
-      Go: "1.25" # when updating this, also update minorMin in builder/config.go
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-        with:
-          submodules: true
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: ${{ env.Go }}
-          cache: true
-      - name: Install LLVM
-        run: |
-          echo 'deb https://apt.llvm.org/jammy/ llvm-toolchain-jammy-${{ env.LLVM }} main' | sudo tee /etc/apt/sources.list.d/llvm.list
-          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-          sudo apt-get update
-          sudo apt-get install --no-install-recommends -y \
-              llvm-${{ env.LLVM }}-dev \
-              clang-${{ env.LLVM }} \
-              libclang-${{ env.LLVM }}-dev \
-              lld-${{ env.LLVM }} \
-              binaryen
-      - name: Restore LLVM source cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-source
-        with:
-          key: llvm-source-22-linux-compat
-          path: llvm-project/compiler-rt
-      - name: Download LLVM source
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        run: make llvm-source
-      - name: Save LLVM source cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
-          path: llvm-project/compiler-rt
-      - name: Go cache
-        uses: actions/cache@v5
-        with:
-          path: |
-            ~/.cache/go-build
-            ~/go/pkg/mod
-          key: go-build-${{ env.Go }}-llvm${{ env.LLVM }}-${{ hashFiles('go.sum') }}
-      - name: Build TinyGo
-        run: go install -tags=llvm${{ env.LLVM }}
-      - run: tinygo version
-      - run: make gen-device -j4
-      - run: go test -tags=llvm${{ env.LLVM }} -short -skip=TestErrors
-      - run: make smoketest XTENSA=0

.github/workflows/docker.yml

@@ -1,68 +0,0 @@
-# This is the Github action to build and push the tinygo/tinygo-dev Docker image.
-# If you are looking for the tinygo/tinygo "release" Docker image please see
-# https://github.com/tinygo-org/docker
-#
-name: Docker
-on:
-  push:
-    branches: [ dev, fix-docker-llvm-build ]
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  push_to_registry:
-    name: build-push-dev
-    runs-on: ubuntu-latest
-    permissions:
-      packages: write
-      contents: read
-    steps:
-      - name: Free Disk space
-        shell: bash
-        run: |
-          df -h
-          sudo rm -rf /opt/hostedtoolcache
-          sudo rm -rf /usr/local/lib/android
-          sudo rm -rf /usr/share/dotnet
-          sudo rm -rf /opt/ghc
-          sudo rm -rf /usr/local/graalvm
-          sudo rm -rf /usr/local/share/boost
-          df -h
-      - name: Check out the repo
-        uses: actions/checkout@v6
-        with:
-          submodules: recursive
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v4
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v6
-        with:
-          images: |
-            tinygo/tinygo-dev
-            ghcr.io/${{ github.repository_owner }}/tinygo-dev
-          tags: |
-            type=sha,format=long
-            type=raw,value=latest
-      - name: Log in to Docker Hub
-        uses: docker/login-action@v4
-        with:
-          username: ${{ secrets.DOCKER_HUB_USERNAME }}
-          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
-      - name: Log in to Github Container Registry
-        uses: docker/login-action@v4
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Build and push
-        uses: docker/build-push-action@v7
-        with:
-          context: .
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max

.github/workflows/linux.yml

@@ -1,425 +0,0 @@
-name: Linux
-
-on:
-  pull_request:
-  push:
-    branches:
-      - dev
-      - release
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  go-mod-tidy:
-    # Check that go.sum is up to date.
-    runs-on: ubuntu-slim
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-        with:
-          submodules: true
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Run go mod tidy
-        run: go mod tidy
-      - name: Check go.mod and go.sum are up to date
-        run: git diff --exit-code
-
-  build-linux:
-    # Build Linux binaries, ready for release.
-    # This runs inside an Alpine Linux container so we can more easily create a
-    # statically linked binary.
-    runs-on: ubuntu-latest
-    container:
-      image: golang:1.27rc2-alpine
-    outputs:
-      version: ${{ steps.version.outputs.version }}
-    steps:
-      - name: Install apk dependencies
-        # tar: needed for actions/cache@v5
-        # git+openssh: needed for checkout (I think?)
-        # ruby: needed to install fpm
-        run: apk add tar git openssh make g++ ruby-dev mold
-      - name: Work around CVE-2022-24765
-        # We're not on a multi-user machine, so this is safe.
-        run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
-      - name: Checkout
-        uses: actions/checkout@v6
-        with:
-          submodules: true
-      - name: Extract TinyGo version
-        id: version
-        run: ./.github/workflows/tinygo-extract-version.sh | tee -a "$GITHUB_OUTPUT"
-      - name: Cache Go
-        uses: actions/cache@v5
-        with:
-          key: go-cache-linux-alpine-v2-${{ hashFiles('go.mod') }}
-          path: |
-            ~/.cache/go-build
-            ~/go/pkg/mod
-      - name: Restore LLVM source cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-source
-        with:
-          key: llvm-source-22-linux-alpine-v1
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Download LLVM source
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        run: make llvm-source
-      - name: Save LLVM source cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Restore LLVM build cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-build
-        with:
-          key: llvm-build-22-linux-alpine-v1
-          path: llvm-build
-      - name: Build LLVM
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        run: |
-          # fetch LLVM source
-          rm -rf llvm-project
-          make llvm-source
-          # install dependencies
-          apk add cmake samurai python3
-          # build!
-          make llvm-build
-          # Remove unnecessary object files (to reduce cache size).
-          find llvm-build -name CMakeFiles -prune -exec rm -r '{}' \;
-      - name: Save LLVM build cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-build.outputs.cache-primary-key }}
-          path: llvm-build
-      - name: Cache Binaryen
-        uses: actions/cache@v5
-        id: cache-binaryen
-        with:
-          key: binaryen-linux-alpine-v3
-          path: build/wasm-opt
-      - name: Build Binaryen
-        if: steps.cache-binaryen.outputs.cache-hit != 'true'
-        run: |
-          apk add cmake samurai python3
-          make binaryen STATIC=1
-      - name: Install fpm
-        run: |
-          gem install --version 4.0.7 public_suffix
-          gem install --version 2.7.6 dotenv
-          gem install --no-document fpm
-      - name: Run linter
-        run: make lint
-      - name: Run spellcheck
-        run: make spell
-      - name: Build TinyGo release
-        run: |
-          make release deb -j3 STATIC=1
-          cp -p build/release.tar.gz /tmp/tinygo${{ steps.version.outputs.version }}.linux-amd64.tar.gz
-          cp -p build/release.deb    /tmp/tinygo_${{ steps.version.outputs.version }}_amd64.deb
-      - name: "Publish release artifact: tarball"
-        uses: actions/upload-artifact@v7
-        with:
-          name: tinygo${{ steps.version.outputs.version }}.linux-amd64.tar.gz
-          path: /tmp/tinygo${{ steps.version.outputs.version }}.linux-amd64.tar.gz
-          archive: false
-      - name: "Publish release artifact: Debian package"
-        uses: actions/upload-artifact@v7
-        with:
-          name: tinygo_${{ steps.version.outputs.version }}_amd64.deb
-          path: /tmp/tinygo_${{ steps.version.outputs.version }}_amd64.deb
-          archive: false
-  test-linux-build:
-    # Test the binaries built in the build-linux job by running the smoke tests.
-    runs-on: ubuntu-latest
-    needs: build-linux
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-        with:
-          submodules: true
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Install wasmtime
-        uses: bytecodealliance/actions/wasmtime/setup@v1
-        with:
-          version: "29.0.1"
-      - name: Install wasm-tools
-        uses: bytecodealliance/actions/wasm-tools/setup@v1
-      - name: Download release artifact
-        uses: actions/download-artifact@v8
-        with:
-          name: tinygo${{ needs.build-linux.outputs.version }}.linux-amd64.tar.gz
-      - name: Extract release tarball
-        run: |
-          mkdir -p ~/lib
-          tar -C ~/lib -xf tinygo${{ needs.build-linux.outputs.version }}.linux-amd64.tar.gz
-          ln -s ~/lib/tinygo/bin/tinygo ~/go/bin/tinygo
-      - run: make tinygo-test-wasip1-fast
-      - run: make tinygo-test-wasip2-fast
-      - run: make tinygo-test-wasm
-      - run: make smoketest
-  assert-test-linux:
-    # Run all tests that can run on Linux, with LLVM assertions enabled to catch
-    # potential bugs.
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-        with:
-          submodules: true
-      - name: Install apt dependencies
-        run: |
-          echo "Show cpuinfo; sometimes useful when troubleshooting"
-          cat /proc/cpuinfo
-          sudo apt-get update
-          sudo apt-get install --no-install-recommends \
-              qemu-system-arm \
-              qemu-system-riscv32 \
-              qemu-user \
-              simavr \
-              ninja-build
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Install Node.js
-        uses: actions/setup-node@v6
-        with:
-          node-version: '22'
-      - name: Install wasmtime
-        uses: bytecodealliance/actions/wasmtime/setup@v1
-        with:
-          version: "29.0.1"
-      - name: Setup `wasm-tools`
-        uses: bytecodealliance/actions/wasm-tools/setup@v1
-      - name: Restore LLVM source cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-source
-        with:
-          key: llvm-source-22-linux-asserts-v1
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Download LLVM source
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        run: make llvm-source
-      - name: Save LLVM source cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Restore LLVM build cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-build
-        with:
-          key: llvm-build-22-linux-asserts-v1
-          path: llvm-build
-      - name: Build LLVM
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        run: |
-          # fetch LLVM source
-          rm -rf llvm-project
-          make llvm-source
-          # build!
-          make llvm-build ASSERT=1
-          # Remove unnecessary object files (to reduce cache size).
-          find llvm-build -name CMakeFiles -prune -exec rm -r '{}' \;
-      - name: Save LLVM build cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-build.outputs.cache-primary-key }}
-          path: llvm-build
-      - name: Cache Binaryen
-        uses: actions/cache@v5
-        id: cache-binaryen
-        with:
-          key: binaryen-linux-asserts-v1
-          path: build/wasm-opt
-      - name: Build Binaryen
-        if: steps.cache-binaryen.outputs.cache-hit != 'true'
-        run: make binaryen
-      - run: make gen-device -j4
-      - name: Test TinyGo
-        run: make ASSERT=1 test
-      - name: Build TinyGo
-        run: |
-          make ASSERT=1
-          echo "$(pwd)/build" >> $GITHUB_PATH
-      - name: Test stdlib packages
-        run: make tinygo-test
-      - run: make smoketest
-      - run: make wasmtest
-      - run: make tinygo-test-baremetal
-      - name: Check Go code formatting
-        run: make fmt-check lint
-  build-linux-cross:
-    # Build ARM Linux binaries, ready for release.
-    # This intentionally uses an older Linux image, so that we compile against
-    # an older glibc version and therefore are compatible with a wide range of
-    # Linux distributions.
-    # It is set to "needs: build-linux" because it modifies the release created
-    # in that process to avoid doing lots of duplicate work and to avoid
-    # complications around precompiled libraries such as compiler-rt shipped as
-    # part of the release tarball.
-    strategy:
-      matrix:
-        goarch: [ arm, arm64 ]
-        include:
-          - goarch: arm64
-            toolchain: aarch64-linux-gnu
-            libc: arm64
-          - goarch: arm
-            toolchain: arm-linux-gnueabihf
-            libc: armhf
-    runs-on: ubuntu-22.04 # note: use the oldest image available! (see above)
-    needs: build-linux
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-      - name: Get TinyGo version
-        id: version
-        run: ./.github/workflows/tinygo-extract-version.sh | tee -a "$GITHUB_OUTPUT"
-      - name: Install apt dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install --no-install-recommends \
-              qemu-user \
-              g++-${{ matrix.toolchain }} \
-              libc6-dev-${{ matrix.libc }}-cross
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Restore LLVM source cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-source
-        with:
-          key: llvm-source-22-linux-v1
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Download LLVM source
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        run: make llvm-source
-      - name: Save LLVM source cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Restore LLVM build cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-build
-        with:
-          key: llvm-build-22-linux-${{ matrix.goarch }}-v1
-          path: llvm-build
-      - name: Build LLVM
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        run: |
-          # fetch LLVM source
-          rm -rf llvm-project
-          make llvm-source
-          # Install build dependencies.
-          sudo apt-get install --no-install-recommends ninja-build
-          # build!
-          make llvm-build CROSS=${{ matrix.toolchain }}
-          # Remove unnecessary object files (to reduce cache size).
-          find llvm-build -name CMakeFiles -prune -exec rm -r '{}' \;
-      - name: Save LLVM build cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-build.outputs.cache-primary-key }}
-          path: llvm-build
-      - name: Cache Binaryen
-        uses: actions/cache@v5
-        id: cache-binaryen
-        with:
-          key: binaryen-linux-${{ matrix.goarch }}-v5
-          path: build/wasm-opt
-      - name: Build Binaryen
-        if: steps.cache-binaryen.outputs.cache-hit != 'true'
-        run: |
-          sudo apt-get install --no-install-recommends ninja-build
-          git submodule update --init lib/binaryen
-          make CROSS=${{ matrix.toolchain }} binaryen
-      - name: Install fpm
-        run: |
-          sudo gem install --version 4.0.7 public_suffix
-          sudo gem install --version 2.7.6 dotenv
-          sudo gem install --no-document fpm
-      - name: Build TinyGo binary
-        run: |
-          make CROSS=${{ matrix.toolchain }}
-      - name: Download amd64 release
-        uses: actions/download-artifact@v8
-        with:
-          name: tinygo${{ needs.build-linux.outputs.version }}.linux-amd64.tar.gz
-      - name: Extract amd64 release
-        run: |
-          mkdir -p build/release
-          tar -xf tinygo${{ needs.build-linux.outputs.version }}.linux-amd64.tar.gz -C build/release tinygo
-      - name: Modify release
-        run: |
-          cp -p build/tinygo   build/release/tinygo/bin
-          cp -p build/wasm-opt build/release/tinygo/bin
-      - name: Create ${{ matrix.goarch }} release
-        run: |
-          make release deb RELEASEONLY=1 DEB_ARCH=${{ matrix.libc }}
-          cp -p build/release.tar.gz /tmp/tinygo${{ needs.build-linux.outputs.version }}.linux-${{ matrix.goarch }}.tar.gz
-          cp -p build/release.deb    /tmp/tinygo_${{ needs.build-linux.outputs.version }}_${{ matrix.libc }}.deb
-      - name: "Publish release artifact: tarball"
-        uses: actions/upload-artifact@v7
-        with:
-          name: linux-${{ matrix.goarch }}-double-zipped-${{ needs.build-linux.outputs.version }}
-          path: /tmp/tinygo${{ needs.build-linux.outputs.version }}.linux-${{ matrix.goarch }}.tar.gz
-          archive: false
-      - name: "Publish release artifact: Debian package"
-        uses: actions/upload-artifact@v7
-        with:
-          name: linux-${{ matrix.goarch }}-double-zipped-${{ needs.build-linux.outputs.version }}
-          path: /tmp/tinygo_${{ needs.build-linux.outputs.version }}_${{ matrix.libc }}.deb
-          archive: false

.github/workflows/llvm.yml

@@ -1,63 +0,0 @@
-# This is the Github action to build and push the LLVM Docker image
-# used by the tinygo/tinygo-dev Docker image.
-#
-# It only needs to be rebuilt when updating the LLVM version.
-#
-# To update, make any needed changes to this file,
-# then push to the "build-llvm-image" branch.
-#
-# The needed image will be rebuilt, which will very likely take at least 1-2 hours.
-name: LLVM
-on:
-  push:
-    branches: [ build-llvm-image ]
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  build-push-llvm:
-    name: build-push-llvm
-    runs-on: ubuntu-latest
-    permissions:
-      packages: write
-      contents: read
-    steps:
-      - name: Check out the repo
-        uses: actions/checkout@v6
-        with:
-          submodules: recursive
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v4
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v6
-        with:
-          images: |
-            tinygo/llvm-20
-            ghcr.io/${{ github.repository_owner }}/llvm-20
-          tags: |
-            type=sha,format=long
-            type=raw,value=latest
-      - name: Log in to Docker Hub
-        uses: docker/login-action@v2
-        with:
-          username: ${{ secrets.DOCKER_HUB_USERNAME }}
-          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
-      - name: Log in to Github Container Registry
-        uses: docker/login-action@v4
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Build and push
-        uses: docker/build-push-action@v7
-        with:
-          target: tinygo-llvm-build
-          context: .
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max

.github/workflows/nix.yml

@@ -1,48 +0,0 @@
-name: Nix
-
-on:
-  pull_request:
-  push:
-    branches:
-      - dev
-      - release
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  nix-test:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Uninstall system LLVM
-        # Hack to work around issue where we still include system headers for
-        # some reason.
-        # See: https://github.com/tinygo-org/tinygo/pull/4516#issuecomment-2416363668
-        run: sudo apt-get remove llvm-18
-      - name: Checkout
-        uses: actions/checkout@v6
-      - name: Pull musl, bdwgc
-        run: |
-            git submodule update --init lib/musl lib/bdwgc
-      - name: Restore LLVM source cache
-        uses: actions/cache/restore@v5
-        id: cache-llvm-source
-        with:
-          key: llvm-source-22-linux-nix-v1
-          path: |
-            llvm-project/compiler-rt
-      - name: Download LLVM source
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        run: make llvm-source
-      - name: Save LLVM source cache
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
-          path: |
-            llvm-project/compiler-rt
-      - uses: cachix/install-nix-action@v31
-      - name: Test
-        run: |
-          nix develop --ignore-environment --keep HOME --command bash -c "go install && ~/go/bin/tinygo version && ~/go/bin/tinygo build -o test ./testdata/cgo"

.github/workflows/sizediff-install-pkgs.sh

@@ -1,12 +0,0 @@
-# Command that's part of sizediff.yml. This is put in a separate file so that it
-# still works after checking out the dev branch (that is, when going from LLVM
-# 16 to LLVM 17 for example, both Clang 16 and Clang 17 are installed).
-
-echo 'deb https://apt.llvm.org/noble/ llvm-toolchain-noble-20 main' | sudo tee /etc/apt/sources.list.d/llvm.list
-wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-sudo apt-get update
-sudo apt-get install --no-install-recommends -y \
-    llvm-20-dev \
-    clang-20 \
-    libclang-20-dev \
-    lld-20

.github/workflows/sizediff.yml

@@ -1,97 +0,0 @@
-name: Binary size difference
-
-on:
-  pull_request:
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  sizediff:
-    # Note: when updating the Ubuntu version, also update the Ubuntu version in
-    # sizediff-install-pkgs.sh
-    runs-on: ubuntu-24.04
-    permissions:
-      pull-requests: write
-    steps:
-      # Prepare, install tools
-      - name: Add GOBIN to $PATH
-        run: |
-          echo "$HOME/go/bin" >> $GITHUB_PATH
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '~1.25'
-      - name: Checkout
-        uses: actions/checkout@v6
-        with:
-          fetch-depth: 0 # fetch all history (no sparse checkout)
-          submodules: true
-      - name: Install apt dependencies
-        run: ./.github/workflows/sizediff-install-pkgs.sh
-      - name: Restore LLVM source cache
-        uses: actions/cache@v5
-        id: cache-llvm-source
-        with:
-          key: llvm-source-22-sizediff-v1
-          path: |
-            llvm-project/compiler-rt
-      - name: Download LLVM source
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        run: make llvm-source
-      - name: Cache Go
-        uses: actions/cache@v5
-        with:
-          key: go-cache-linux-sizediff-v2-${{ hashFiles('go.mod') }}
-          path: |
-            ~/.cache/go-build
-            ~/go/pkg/mod
-      - run: make gen-device -j4
-      - name: Download drivers repo
-        run: git clone https://github.com/tinygo-org/drivers.git
-      - name: Save HEAD
-        run: git branch github-actions-saved-HEAD HEAD
-
-      # Compute sizes for the PR branch
-      - name: Build tinygo binary for the PR branch
-        run: go install
-      - name: Determine binary sizes on the PR branch
-        run: (cd drivers; make smoke-test XTENSA=0 | tee sizes-pr.txt)
-
-      # Compute sizes for the dev branch
-      - name: Checkout dev branch
-        run: |
-          git reset --hard origin/dev
-          git checkout --no-recurse-submodules `git merge-base HEAD origin/dev`
-      - name: Install apt dependencies on the dev branch
-        # this is only needed on a PR that changes the LLVM version
-        run: ./.github/workflows/sizediff-install-pkgs.sh
-      - name: Build tinygo binary for the dev branch
-        run: go install
-      - name: Determine binary sizes on the dev branch
-        run: (cd drivers; make smoke-test XTENSA=0 | tee sizes-dev.txt)
-
-      # Create comment
-      # TODO: add a summary, something like:
-      #  - overall size difference (percent)
-      #  - number of binaries that grew / shrank / remained the same
-      #  - don't show the full diff when no binaries changed
-      - name: Calculate size diff
-        run: ./tools/sizediff drivers/sizes-dev.txt drivers/sizes-pr.txt | tee sizediff.txt
-      - name: Create comment
-        run: |
-          echo "Size difference with the dev branch:" > comment.txt
-          echo "<details><summary>Binary size difference</summary>" >> comment.txt
-          echo "<pre>" >> comment.txt
-          cat sizediff.txt >> comment.txt
-          echo "</pre></details>" >> comment.txt
-      - name: Comment contents
-        run: cat comment.txt
-      - name: Add comment
-        if: ${{ github.event.pull_request.head.repo.full_name == github.event.pull_request.base.repo.full_name }}
-        uses: thollander/actions-comment-pull-request@v2.3.1
-        with:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          filePath: comment.txt
-          comment_tag: sizediff

.github/workflows/tinygo-extract-version.sh

@@ -1,4 +0,0 @@
-#!/bin/sh
-
-# Extract the version string from the source code, to be stored in a variable.
-grep 'const version' goenv/version.go | sed 's/^const version = "\(.*\)"$/version=\1/g'

.github/workflows/windows.yml

@@ -1,188 +0,0 @@
-name: Windows
-
-on:
-  pull_request:
-  push:
-    branches:
-      - dev
-      - release
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  build-windows:
-    runs-on: windows-2022
-    outputs:
-      version: ${{ steps.version.outputs.version }}
-    steps:
-      - uses: MinoruSekine/setup-scoop@v4
-      - name: Install Dependencies
-        shell: bash
-        run: |
-          scoop config use_external_7zip true
-          scoop install ninja binaryen
-      - name: Checkout
-        uses: actions/checkout@v6
-        with:
-          submodules: true
-      - name: Extract TinyGo version
-        id: version
-        shell: bash
-        run: ./.github/workflows/tinygo-extract-version.sh | tee -a "$GITHUB_OUTPUT"
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Restore cached LLVM source
-        uses: actions/cache/restore@v5
-        id: cache-llvm-source
-        with:
-          key: llvm-source-22-windows-v3
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Download LLVM source
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        run: make llvm-source
-      - name: Save cached LLVM source
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
-          path: |
-            llvm-project/clang/lib/Headers
-            llvm-project/clang/include
-            llvm-project/compiler-rt
-            llvm-project/lld/include
-            llvm-project/llvm/include
-      - name: Restore cached LLVM build
-        uses: actions/cache/restore@v5
-        id: cache-llvm-build
-        with:
-          key: llvm-build-22-windows-v1
-          path: llvm-build
-      - name: Build LLVM
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        shell: bash
-        run: |
-          # fetch LLVM source
-          rm -rf llvm-project
-          make llvm-source
-          # build!
-          make llvm-build CCACHE=OFF
-          # Remove unnecessary object files (to reduce cache size).
-          find llvm-build -name CMakeFiles -prune -exec rm -r '{}' \;
-      - name: Save cached LLVM build
-        uses: actions/cache/save@v5
-        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
-        with:
-          key: ${{ steps.cache-llvm-build.outputs.cache-primary-key }}
-          path: llvm-build
-      - name: Cache Go cache
-        uses: actions/cache@v5
-        with:
-          key: go-cache-windows-v3-${{ hashFiles('go.mod') }}
-          path: |
-            C:/Users/runneradmin/AppData/Local/go-build
-            C:/Users/runneradmin/go/pkg/mod
-      - name: Install wasmtime
-        run: |
-          scoop config use_external_7zip true
-          scoop install wasmtime@29.0.1
-      - name: make gen-device
-        run: make -j3 gen-device
-      - name: Test TinyGo
-        shell: bash
-        run: make test GOTESTFLAGS="-only-current-os"
-      - name: Build TinyGo release tarball
-        shell: bash
-        run: make build/release -j4
-      - name: Make release artifact
-        shell: bash
-        working-directory: build/release
-        run: 7z -tzip a tinygo${{ steps.version.outputs.version }}.windows-amd64.zip tinygo
-      - name: Publish release artifact
-        uses: actions/upload-artifact@v7
-        with:
-          name: tinygo${{ steps.version.outputs.version }}.windows-amd64.zip
-          path: build/release/tinygo${{ steps.version.outputs.version }}.windows-amd64.zip
-          archive: false
-
-  smoke-test-windows:
-    runs-on: windows-2022
-    needs: build-windows
-    steps:
-      - uses: MinoruSekine/setup-scoop@v4
-      - name: Install Dependencies
-        shell: bash
-        run: |
-          scoop config use_external_7zip true
-          scoop install binaryen
-      - name: Checkout
-        uses: actions/checkout@v6
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Download TinyGo build
-        uses: actions/download-artifact@v8
-        with:
-          name: tinygo${{ needs.build-windows.outputs.version }}.windows-amd64.zip
-          path: build/
-        # This build is already unzipped.
-      - name: Smoke tests
-        shell: bash
-        run: make smoketest TINYGO=$(PWD)/build/tinygo/bin/tinygo
-
-  stdlib-test-windows:
-    runs-on: windows-2022
-    needs: build-windows
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Download TinyGo build
-        uses: actions/download-artifact@v8
-        with:
-          name: tinygo${{ needs.build-windows.outputs.version }}.windows-amd64.zip
-          path: build/
-        # This build is already unzipped.
-      - name: Test stdlib packages
-        run: make tinygo-test TINYGO=$(PWD)/build/tinygo/bin/tinygo
-
-  stdlib-wasi-test-windows:
-    runs-on: windows-2022
-    needs: build-windows
-    steps:
-      - uses: MinoruSekine/setup-scoop@v4
-      - name: Install Dependencies
-        shell: bash
-        run: |
-          scoop config use_external_7zip true
-          scoop install binaryen wasmtime@29.0.1
-      - name: Checkout
-        uses: actions/checkout@v6
-      - name: Install Go
-        uses: actions/setup-go@v6
-        with:
-          go-version: '1.27.0-rc.2'
-          cache: true
-      - name: Download TinyGo build
-        uses: actions/download-artifact@v8
-        with:
-          name: tinygo${{ needs.build-windows.outputs.version }}.windows-amd64.zip
-          path: build/
-        # This build is already unzipped.
-      - name: Test stdlib packages on wasip1
-        run: make tinygo-test-wasip1-fast TINYGO=$(PWD)/build/tinygo/bin/tinygo

.gitignore

@@ -1,45 +1,16 @@
-.DS_Store
-.vscode
-go.work
-go.work.sum
-
+build
 docs/_build
 src/device/avr/*.go
 src/device/avr/*.ld
 src/device/avr/*.s
-src/device/esp/*.go
 src/device/nrf/*.go
 src/device/nrf/*.s
-src/device/nxp/*.go
-src/device/nxp/*.s
 src/device/sam/*.go
 src/device/sam/*.s
 src/device/sifive/*.go
 src/device/sifive/*.s
 src/device/stm32/*.go
 src/device/stm32/*.s
-src/device/kendryte/*.go
-src/device/kendryte/*.s
-src/device/renesas/*.go
-src/device/renesas/*.s
-src/device/rp/*.go
-src/device/rp/*.s
-./vendor
+vendor
+llvm
 llvm-build
-llvm-project
-build/*
-
-# Ignore files generated by smoketest
-test
-test.bin
-test.elf
-test.exe
-test.gba
-test.hex
-test.nro
-test.uf2
-test.wasm
-wasm.wasm
-
-*.uf2
-*.elf

.gitmodules

@@ -9,35 +9,8 @@
 	url = https://github.com/avr-rust/avr-mcu.git
 [submodule "lib/cmsis-svd"]
 	path = lib/cmsis-svd
-	url = https://github.com/cmsis-svd/cmsis-svd-data.git
-	branch = main
-[submodule "lib/wasi-libc"]
-	path = lib/wasi-libc
-	url = https://github.com/WebAssembly/wasi-libc
-[submodule "lib/picolibc"]
-	path = lib/picolibc
-	url = https://github.com/picolibc/picolibc.git
-[submodule "lib/stm32-svd"]
-	path = lib/stm32-svd
-	url = https://github.com/tinygo-org/stm32-svd
-[submodule "lib/musl"]
-	path = lib/musl
-	url = https://github.com/tinygo-org/musl-libc.git
-[submodule "lib/binaryen"]
-	path = lib/binaryen
-	url = https://github.com/WebAssembly/binaryen.git
-[submodule "lib/mingw-w64"]
-	path = lib/mingw-w64
-	url = https://github.com/mingw-w64/mingw-w64.git
-[submodule "lib/macos-minimal-sdk"]
-	path = lib/macos-minimal-sdk
-	url = https://github.com/aykevl/macos-minimal-sdk.git
-[submodule "src/net"]
-	path = src/net
-	url = https://github.com/tinygo-org/net.git
-[submodule "lib/wasi-cli"]
-	path = lib/wasi-cli
-	url = https://github.com/WebAssembly/wasi-cli
-[submodule "lib/bdwgc"]
-	path = lib/bdwgc
-	url = https://github.com/ivmai/bdwgc.git
+	url = https://github.com/tinygo-org/cmsis-svd
+[submodule "lib/compiler-rt"]
+	path = lib/compiler-rt
+	url = https://github.com/llvm-mirror/compiler-rt.git
+	branch = release_80

BUILDING.md

@@ -10,16 +10,13 @@ This guide describes how to statically link TinyGo against LLVM, libclang and
 lld so that the binary can be easily moved between systems. It also shows how to
 build a release tarball that includes this binary and all necessary extra files.
 
-**Note**: this documentation describes how to build a statically linked release
-tarball. If you want to help with development of TinyGo itself, you should follow the guide located at https://tinygo.org/docs/guides/build/
-
 ## Dependencies
 
 LLVM, Clang and LLD are quite light on dependencies, requiring only standard
 build tools to be built. Go is of course necessary to build TinyGo itself.
 
-  * Go (1.19+)
-  * GNU Make
+  * Go (1.11+)
+  * [dep](https://golang.github.io/dep/)
   * Standard build tools (gcc/clang)
   * git
   * CMake
@@ -28,27 +25,13 @@ build tools to be built. Go is of course necessary to build TinyGo itself.
 The rest of this guide assumes you're running Linux, but it should be equivalent
 on a different system like Mac.
 
-## Using GNU Make
-
-The static build of TinyGo is driven by GNUmakefile, which provides a help target for quick reference:
-
-    % make help
-    clean                           Remove build directory
-    fmt                             Reformat source
-    fmt-check                       Warn if any source needs reformatting
-    gen-device                      Generate microcontroller-specific sources
-    llvm-source                     Get LLVM sources
-    llvm-build                      Build LLVM
-    tinygo                          Build the TinyGo compiler
-    lint                            Lint source tree
-    spell                           Spellcheck source tree
-
 ## Download the source
 
 The first step is to download the TinyGo sources (use `--recursive` if you clone
-the git repository). Then, inside the directory, download the LLVM source:
+the git repository). Then, inside the directory, perform these steps:
 
-    make llvm-source
+    dep ensure -vendor-only # download Go dependencies
+    make llvm-source        # download LLVM
 
 You can also store LLVM outside of the TinyGo root directory by setting the
 `LLVM_BUILDDIR`, `CLANG_SRC` and `LLD_SRC` make variables, but that is not
@@ -85,17 +68,11 @@ Try running TinyGo:
 
     ./build/tinygo help
 
-Also, make sure the `tinygo` binary really is statically linked. The command to check for 
-dynamic dependencies differs depending on your operating system.
-
-On Linux, use `ldd` (not to be confused with `lld`):
+Also, make sure the `tinygo` binary really is statically linked. Check this
+using `ldd` (not to be confused with `lld`):
 
     ldd ./build/tinygo
 
-On macOS, use otool -L:
-
-    otool -L ./build/tinygo
-
 The result should not contain libclang or libLLVM.
 
 ## Make a release tarball
@@ -104,10 +81,6 @@ Now that we have a working static build, it's time to make a release tarball:
 
     make release
 
-If you did not clone the repository with the `--recursive` option, you will get errors until you initialize the project submodules:
-
-    git submodule update --init
-
 The release tarball is stored in build/release.tar.gz, and can be extracted with
 the following command (for example in ~/lib):
 

CODE-OF-CONDUCT.md

@@ -1,76 +0,0 @@
-# Contributor Covenant Code of Conduct
-
-## Our Pledge
-
-In the interest of fostering an open and welcoming environment, we as
-contributors and maintainers pledge to make participation in our project and
-our community a harassment-free experience for everyone, regardless of age, body
-size, disability, ethnicity, sex characteristics, gender identity and expression,
-level of experience, education, socio-economic status, nationality, personal
-appearance, race, religion, or sexual identity and orientation.
-
-## Our Standards
-
-Examples of behavior that contributes to creating a positive environment
-include:
-
-* Using welcoming and inclusive language
-* Being respectful of differing viewpoints and experiences
-* Gracefully accepting constructive criticism
-* Focusing on what is best for the community
-* Showing empathy towards other community members
-
-Examples of unacceptable behavior by participants include:
-
-* The use of sexualized language or imagery and unwelcome sexual attention or
-  advances
-* Trolling, insulting/derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or electronic
-  address, without explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
-  professional setting
-
-## Our Responsibilities
-
-Project maintainers are responsible for clarifying the standards of acceptable
-behavior and are expected to take appropriate and fair corrective action in
-response to any instances of unacceptable behavior.
-
-Project maintainers have the right and responsibility to remove, edit, or
-reject comments, commits, code, wiki edits, issues, and other contributions
-that are not aligned to this Code of Conduct, or to ban temporarily or
-permanently any contributor for other behaviors that they deem inappropriate,
-threatening, offensive, or harmful.
-
-## Scope
-
-This Code of Conduct applies within all project spaces, and it also applies when
-an individual is representing the project or its community in public spaces.
-Examples of representing a project or community include using an official
-project e-mail address, posting via an official social media account, or acting
-as an appointed representative at an online or offline event. Representation of
-a project may be further defined and clarified by project maintainers.
-
-## Enforcement
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting the project team at [conduct@tinygo.org](mailto:conduct@tinygo.org). All
-complaints will be reviewed and investigated and will result in a response that
-is deemed necessary and appropriate to the circumstances. The project team is
-obligated to maintain confidentiality with regard to the reporter of an incident.
-Further details of specific enforcement policies may be posted separately.
-
-Project maintainers who do not follow or enforce the Code of Conduct in good
-faith may face temporary or permanent repercussions as determined by other
-members of the project's leadership.
-
-## Attribution
-
-This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
-available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
-
-[homepage]: https://www.contributor-covenant.org
-
-For answers to common questions about this code of conduct, see
-https://www.contributor-covenant.org/faq

CONTRIBUTING.md

@@ -1 +1,52 @@
-Please take a look at our [Contributing](https://tinygo.org/docs/guides/contributing/) page on our web site for details. Thank you.
+# How to contribute
+
+Thank you for your interest in improving TinyGo.
+
+We would like your help to make this project better, so we appreciate any contributions. See if one of the following descriptions matches your situation:
+
+### New to TinyGo
+
+We'd love to get your feedback on getting started with TinyGo. Run into any difficulty, confusion, or anything else? You are not alone. We want to know about your experience, so we can help the next people. Please open a Github issue with your questions, or you can also get in touch directly with us on our Slack channel at [https://gophers.slack.com/messages/CDJD3SUP6](https://gophers.slack.com/messages/CDJD3SUP6).
+
+### Something in TinyGo is not working as you expect
+
+Please open a Github issue with your problem, and we will be happy to assist.
+
+### Something in Go that you want/need does not appear to be in TinyGo
+
+We probably have not implemented it yet. Please take a look at our [Roadmap](https://github.com/tinygo-org/tinygo/wiki/Roadmap). Your pull request adding the functionality to TinyGo would be greatly appreciated.
+
+Please open a Github issue. We want to help, and also make sure that there is no duplications of efforts. Sometimes what you need is already being worked on by someone else.
+
+A long tail of small (and large) language features haven't been implemented yet. In almost all cases, the compiler will show a `todo:` error from `compiler/compiler.go` when you try to use it. You can try implementing it, or open a bug report with a small code sample that fails to compile.
+
+### Some specific hardware you want to use does not appear to be in TinyGo
+
+As above, we probably have not implemented it yet. Your contribution adding the hardware support to TinyGo would be greatly appreciated.
+
+Please start by opening a Github issue. We want to help you to help us to help you.
+
+Lots of targets/boards are still unsupported. Adding an architecture often requires a few compiler changes, but if the architecture is supported you can try implementing support for a new chip or board in `src/runtime`. For details, see [this wiki entry on adding archs/chips/boards](https://github.com/tinygo-org/tinygo/wiki/Adding-a-new-board).
+
+Microcontrollers have lots of peripherals (I2C, SPI, ADC, etc.) and many don't have an implementation yet in the `machine` package. Adding support for new peripherals is very useful.
+
+## How to use our Github repository
+
+The `master` branch of this repo will always have the latest released version of TinyGo. All of the active development work for the next release will take place in the `dev` branch. TinyGo will use semantic versioning and will create a tag/release for each release.
+
+Here is how to contribute back some code or documentation:
+
+- Fork repo
+- Create a feature branch off of the `dev` branch
+- Make some useful change
+- Make sure the tests still pass
+- Submit a pull request against the `dev` branch.
+- Be kind
+
+## How to run tests
+
+To run the tests:
+
+```
+make test
+```

CONTRIBUTORS

@@ -15,4 +15,3 @@ Ayke van Laethem <aykevanlaethem@gmail.com>
 Daniel Esteban <conejo@conejo.me>
 Loon, LLC.
 Ron Evans <ron@hybridgroup.com>
-Nia Weiss <niaow1234@gmail.com>

Dockerfile

@@ -1,43 +1,86 @@
-# tinygo-llvm stage obtains the llvm source for TinyGo
-FROM golang:1.27rc2 AS tinygo-llvm
+# TinyGo base stage just installs LLVM 8 and the TinyGo compiler itself.
+FROM golang:latest AS tinygo-base
 
-RUN apt-get update && \
-    apt-get install -y apt-utils make cmake clang-17 ninja-build && \
-    rm -rf \
-        /var/lib/apt/lists/* \
-        /var/log/* \
-        /var/tmp/* \
-        /tmp/*
+RUN wget -O- https://apt.llvm.org/llvm-snapshot.gpg.key| apt-key add - && \
+    echo "deb http://apt.llvm.org/buster/ llvm-toolchain-buster-8 main" >> /etc/apt/sources.list && \
+    apt-get update && \
+    apt-get install -y llvm-8-dev libclang-8-dev git
 
-COPY ./GNUmakefile /tinygo/GNUmakefile
+RUN wget -O- https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
 
-RUN cd /tinygo/ && \
-    make llvm-source
+COPY . /go/src/github.com/tinygo-org/tinygo
 
-# tinygo-llvm-build stage build the custom llvm with xtensa support
-FROM tinygo-llvm AS tinygo-llvm-build
+# remove submodules directories and re-init them to fix any hard-coded paths
+# after copying the tinygo directory in the previous step.
+RUN cd /go/src/github.com/tinygo-org/tinygo/ && \
+    rm -rf ./lib/* && \
+    git submodule update --init --recursive --force
 
-RUN cd /tinygo/ && \
-    make llvm-build
+RUN cd /go/src/github.com/tinygo-org/tinygo/ && \
+    dep ensure --vendor-only && \
+    go install /go/src/github.com/tinygo-org/tinygo/
 
-# tinygo-compiler-build stage builds the compiler itself
-FROM tinygo-llvm-build AS tinygo-compiler-build
+# tinygo-wasm stage installs the needed dependencies to compile TinyGo programs for WASM.
+FROM tinygo-base AS tinygo-wasm
 
-COPY . /tinygo
+COPY --from=tinygo-base /go/bin/tinygo /go/bin/tinygo
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/src /go/src/github.com/tinygo-org/tinygo/src
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/targets /go/src/github.com/tinygo-org/tinygo/targets
 
-# build the compiler and tools
-RUN cd /tinygo/ && \
-    git submodule update --init && \
-    make gen-device -j4 && \
-    make build/release
+RUN wget -O- https://apt.llvm.org/llvm-snapshot.gpg.key| apt-key add - && \
+    echo "deb http://apt.llvm.org/buster/ llvm-toolchain-buster-8 main" >> /etc/apt/sources.list && \
+    apt-get update && \
+    apt-get install -y libllvm8 lld-8
 
-# tinygo-compiler copies the compiler build over to a base Go container (without
-# all the build tools etc).
-FROM golang:1.27rc2 AS tinygo-compiler
+# tinygo-avr stage installs the needed dependencies to compile TinyGo programs for AVR microcontrollers.
+FROM tinygo-base AS tinygo-avr
 
-# Copy tinygo build.
-COPY --from=tinygo-compiler-build /tinygo/build/release/tinygo /tinygo
+COPY --from=tinygo-base /go/bin/tinygo /go/bin/tinygo
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/src /go/src/github.com/tinygo-org/tinygo/src
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/targets /go/src/github.com/tinygo-org/tinygo/targets
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/Makefile /go/src/github.com/tinygo-org/tinygo/
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/tools /go/src/github.com/tinygo-org/tinygo/tools
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/lib /go/src/github.com/tinygo-org/tinygo/lib
+
+RUN cd /go/src/github.com/tinygo-org/tinygo/ && \
+    apt-get update && \
+    apt-get install -y apt-utils python3 make binutils-avr gcc-avr avr-libc && \
+    make gen-device-avr && \
+    apt-get remove -y python3 && \
+    apt-get autoremove -y && \
+    apt-get clean
+
+# tinygo-arm stage installs the needed dependencies to compile TinyGo programs for ARM microcontrollers.
+FROM tinygo-base AS tinygo-arm
+
+COPY --from=tinygo-base /go/bin/tinygo /go/bin/tinygo
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/src /go/src/github.com/tinygo-org/tinygo/src
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/targets /go/src/github.com/tinygo-org/tinygo/targets
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/Makefile /go/src/github.com/tinygo-org/tinygo/
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/tools /go/src/github.com/tinygo-org/tinygo/tools
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/lib /go/src/github.com/tinygo-org/tinygo/lib
+
+RUN cd /go/src/github.com/tinygo-org/tinygo/ && \
+    apt-get update && \
+    apt-get install -y apt-utils python3 make clang-8 && \
+    make gen-device-nrf && make gen-device-stm32 && \
+    apt-get remove -y python3 && \
+    apt-get autoremove -y && \
+    apt-get clean
+
+# tinygo-all stage installs the needed dependencies to compile TinyGo programs for all platforms.
+FROM tinygo-wasm AS tinygo-all
+
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/Makefile /go/src/github.com/tinygo-org/tinygo/
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/tools /go/src/github.com/tinygo-org/tinygo/tools
+COPY --from=tinygo-base /go/src/github.com/tinygo-org/tinygo/lib /go/src/github.com/tinygo-org/tinygo/lib
+
+RUN cd /go/src/github.com/tinygo-org/tinygo/ && \
+    apt-get update && \
+    apt-get install -y apt-utils python3 make clang-8 binutils-avr gcc-avr avr-libc && \
+    make gen-device && \
+    apt-get remove -y python3 && \
+    apt-get autoremove -y && \
+    apt-get clean
 
-# Configure the container.
-ENV PATH="${PATH}:/tinygo/bin"
 CMD ["tinygo"]

GOVERNANCE.md

@@ -1,32 +0,0 @@
-TinyGo Team Members
-===================
-
-The team of humans who maintain TinyGo.
-
-*   **Purpose**: To maintain the community, code, documentation, and tools for the TinyGo compiler.
-*   **Board**: The group of people who share responsibility for key decisions for the TinyGo organization.  
-    *   **Majority Voting**: The board makes decisions by majority vote.
-    *   **Membership**: The board elects its own members.
-*   **Do-ocracy**: Those who step forward to do a given task propose how it should be done. Then other interested people can make comments.
-*   **Proof of Work**: Power in decision-making is slightly weighted based on a participant's labor for the community.
-*   **Initiation**: We need to establish a procedure for how people join the team of maintainers.
-*   **Transparency**: Important information should be made publicly available, ideally in a way that allows for public comment.
-*   **Code of Conduct**: Participants agree to abide by the current project Code of Conduct.
-
-## Members
-
-* Ayke van Laethem (@aykevl)
-* Daniel Esteban (@conejoninja)
-* Ron Evans (@deadprogram)
-* Damian Gryski (@dgryski)
-* Masaaki Takasago (@sago35)
-* Patricio Whittingslow (@soypat)
-* Yurii Soldak (@ysoldak)
-
-## Experimental
-
-*   **Monthly Meeting**: A monthly meeting for the team and any other interested participants.  
-    Duration: 1 hour  
-    Facilitation: @deadprogram
-    Schedule: See https://github.com/tinygo-org/tinygo/wiki/Meetings for more information
-

Gopkg.lock

@@ -0,0 +1,51 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  branch = "master"
+  digest = "1:06519a2ec1d59040eaccec40206f9d0b59dc662db2a032f974d6d6b9a2bcb839"
+  name = "github.com/blakesmith/ar"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "8bd4349a67f2533b078dbc524689d15dba0f4659"
+
+[[projects]]
+  branch = "master"
+  digest = "1:00b45e06c7843541372fc17d982242bd6adfc2fc382b6f2e9ef9ce53d87a50b9"
+  name = "github.com/marcinbor85/gohex"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "7a43cd876e46e0f6ddc553f10f91731a78e6e949"
+
+[[projects]]
+  branch = "master"
+  digest = "1:ba70784a3deee74c0ca3c87bcac3c2f93d3b2d27d8f237b768c358b45ba47da8"
+  name = "golang.org/x/tools"
+  packages = [
+    "go/ast/astutil",
+    "go/ssa",
+    "go/types/typeutil",
+  ]
+  pruneopts = "UT"
+  revision = "8dcc6e70cdefe9a82236b6e195e4f4e2108fcb9f"
+
+[[projects]]
+  branch = "llvm8"
+  digest = "1:bf5539bdf6b3cc3ec1e45926db05d81180da11ce722fa1edcce3f0b4e1967da5"
+  name = "tinygo.org/x/go-llvm"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "7707ae5d1261a8929edea7336c8087ca8b520d8d"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  input-imports = [
+    "github.com/blakesmith/ar",
+    "github.com/marcinbor85/gohex",
+    "golang.org/x/tools/go/ast/astutil",
+    "golang.org/x/tools/go/ssa",
+    "tinygo.org/x/go-llvm",
+  ]
+  solver-name = "gps-cdcl"
+  solver-version = 1

Gopkg.toml

@@ -0,0 +1,11 @@
+[[constraint]]
+  branch = "llvm8"
+  name = "tinygo.org/x/go-llvm"
+
+[[constraint]]
+  branch = "master"
+  name = "golang.org/x/tools"
+
+[prune]
+  go-tests = true
+  unused-packages = true

LICENSE

@@ -1,11 +1,7 @@
-Copyright (c) 2018-2026 The TinyGo Authors. All rights reserved.
+Copyright (c) 2018-2019 TinyGo Authors. All rights reserved.
 
 TinyGo includes portions of the Go standard library.
-Copyright 2009 The Go Authors. All rights reserved.
-See https://github.com/golang/go/blob/master/LICENSE for license information.
-
-TinyGo includes portions of LLVM, which is under the Apache License v2.0 with
-LLVM Exceptions. See https://llvm.org/LICENSE.txt for license information.
+Copyright (c) 2009-2019 The Go Authors. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are

Makefile

@@ -0,0 +1,161 @@
+
+# aliases
+all: tinygo
+tinygo: build/tinygo
+
+# Default build and source directories, as created by `make llvm-build`.
+LLVM_BUILDDIR ?= llvm-build
+CLANG_SRC ?= llvm-project/clang
+LLD_SRC ?= llvm-project/lld
+
+.PHONY: all tinygo build/tinygo test $(LLVM_BUILDDIR) llvm-source clean fmt gen-device gen-device-nrf gen-device-avr
+
+LLVM_COMPONENTS = all-targets analysis asmparser asmprinter bitreader bitwriter codegen core coroutines debuginfodwarf executionengine instrumentation interpreter ipo irreader linker lto mc mcjit objcarcopts option profiledata scalaropts support target
+
+UNAME_S := $(shell uname -s)
+ifeq ($(UNAME_S),Linux)
+    START_GROUP = -Wl,--start-group
+    END_GROUP = -Wl,--end-group
+endif
+
+CLANG_LIBS = $(START_GROUP) $(abspath $(LLVM_BUILDDIR))/lib/libclang.a -lclangAnalysis -lclangARCMigrate -lclangAST -lclangASTMatchers -lclangBasic -lclangCodeGen -lclangCrossTU -lclangDriver -lclangDynamicASTMatchers -lclangEdit -lclangFormat -lclangFrontend -lclangFrontendTool -lclangHandleCXX -lclangHandleLLVM -lclangIndex -lclangLex -lclangParse -lclangRewrite -lclangRewriteFrontend -lclangSema -lclangSerialization -lclangStaticAnalyzerCheckers -lclangStaticAnalyzerCore -lclangStaticAnalyzerFrontend -lclangTooling -lclangToolingASTDiff -lclangToolingCore -lclangToolingInclusions $(END_GROUP) -lstdc++
+
+LLD_LIBS = $(START_GROUP) -llldCOFF -llldCommon -llldCore -llldDriver -llldELF -llldMachO -llldMinGW -llldReaderWriter -llldWasm -llldYAML $(END_GROUP)
+
+
+# For static linking.
+ifneq ("$(wildcard $(LLVM_BUILDDIR)/bin/llvm-config)","")
+    CGO_CPPFLAGS=$(shell $(LLVM_BUILDDIR)/bin/llvm-config --cppflags) -I$(abspath $(CLANG_SRC))/include -I$(abspath $(LLD_SRC))/include
+    CGO_CXXFLAGS=-std=c++11
+    CGO_LDFLAGS=-L$(LLVM_BUILDDIR)/lib $(CLANG_LIBS) $(LLD_LIBS) $(shell $(LLVM_BUILDDIR)/bin/llvm-config --ldflags --libs --system-libs $(LLVM_COMPONENTS))
+endif
+
+
+clean:
+	@rm -rf build
+
+FMT_PATHS = ./*.go cgo compiler interp ir loader src/device/arm src/examples src/machine src/os src/reflect src/runtime src/sync src/syscall
+fmt:
+	@gofmt -l -w $(FMT_PATHS)
+fmt-check:
+	@unformatted=$$(gofmt -l $(FMT_PATHS)); [ -z "$$unformatted" ] && exit 0; echo "Unformatted:"; for fn in $$unformatted; do echo "  $$fn"; done; exit 1
+
+
+gen-device: gen-device-avr gen-device-nrf gen-device-sam gen-device-sifive gen-device-stm32
+
+gen-device-avr:
+	./tools/gen-device-avr.py lib/avr/packs/atmega src/device/avr/
+	./tools/gen-device-avr.py lib/avr/packs/tiny src/device/avr/
+	go fmt ./src/device/avr
+
+gen-device-nrf:
+	./tools/gen-device-svd.py lib/nrfx/mdk/ src/device/nrf/ --source=https://github.com/NordicSemiconductor/nrfx/tree/master/mdk
+	go fmt ./src/device/nrf
+
+gen-device-sam:
+	./tools/gen-device-svd.py lib/cmsis-svd/data/Atmel/ src/device/sam/ --source=https://github.com/posborne/cmsis-svd/tree/master/data/Atmel
+	go fmt ./src/device/sam
+
+gen-device-sifive:
+	./tools/gen-device-svd.py lib/cmsis-svd/data/SiFive-Community/ src/device/sifive/ --source=https://github.com/AdaCore/svd2ada/tree/master/CMSIS-SVD/SiFive-Community
+	go fmt ./src/device/sifive
+
+gen-device-stm32:
+	./tools/gen-device-svd.py lib/cmsis-svd/data/STMicro/ src/device/stm32/ --source=https://github.com/posborne/cmsis-svd/tree/master/data/STMicro
+	go fmt ./src/device/stm32
+
+
+# Get LLVM sources.
+llvm-project/README.md:
+	git clone -b release/8.x https://github.com/llvm/llvm-project
+llvm-source: llvm-project/README.md
+
+# Configure LLVM.
+TINYGO_SOURCE_DIR=$(shell pwd)
+$(LLVM_BUILDDIR)/build.ninja: llvm-source
+	mkdir -p $(LLVM_BUILDDIR); cd $(LLVM_BUILDDIR); cmake -G Ninja $(TINYGO_SOURCE_DIR)/llvm-project/llvm "-DLLVM_TARGETS_TO_BUILD=X86;ARM;AArch64;WebAssembly" "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=AVR;RISCV" -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=OFF -DLIBCLANG_BUILD_STATIC=ON -DLLVM_ENABLE_TERMINFO=OFF -DLLVM_ENABLE_ZLIB=OFF -DLLVM_ENABLE_PROJECTS="clang;lld" -DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF
+
+# Build LLVM.
+$(LLVM_BUILDDIR): $(LLVM_BUILDDIR)/build.ninja
+	cd $(LLVM_BUILDDIR); ninja
+
+
+# Build the Go compiler.
+build/tinygo:
+	@if [ ! -f "$(LLVM_BUILDDIR)/bin/llvm-config" ]; then echo "Fetch and build LLVM first by running:"; echo "  make llvm-source"; echo "  make $(LLVM_BUILDDIR)"; exit 1; fi
+	CGO_CPPFLAGS="$(CGO_CPPFLAGS)" CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" go build -o build/tinygo -tags byollvm .
+
+test:
+	CGO_CPPFLAGS="$(CGO_CPPFLAGS)" CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" go test -v -tags byollvm .
+
+tinygo-test:
+	cd tests/tinygotest && tinygo test
+
+.PHONY: smoketest
+smoketest:
+	# test all examples
+	tinygo build -size short -o test.elf -target=pca10040            examples/blinky1
+	tinygo build -size short -o test.elf -target=pca10040            examples/adc
+	tinygo build -size short -o test.elf -target=pca10040            examples/blinkm
+	tinygo build -size short -o test.elf -target=pca10040            examples/blinky2
+	tinygo build -size short -o test.elf -target=pca10040            examples/button
+	tinygo build -size short -o test.elf -target=pca10040            examples/button2
+	tinygo build -size short -o test.elf -target=pca10040            examples/echo
+	tinygo build -size short -o test.elf -target=circuitplay-express examples/i2s
+	tinygo build -size short -o test.elf -target=pca10040            examples/mcp3008
+	tinygo build -size short -o test.elf -target=microbit            examples/microbit-blink
+	tinygo build -size short -o test.elf -target=pca10040            examples/pwm
+	tinygo build -size short -o test.elf -target=pca10040            examples/serial
+	tinygo build -size short -o test.elf -target=pca10040            examples/test
+	# test all targets/boards
+	tinygo build             -o test.wasm -tags=pca10040             examples/blinky2
+	tinygo build -size short -o test.elf -target=microbit            examples/echo
+	tinygo build -size short -o test.elf -target=nrf52840-mdk        examples/blinky1
+	tinygo build -size short -o test.elf -target=pca10031            examples/blinky1
+	tinygo build -size short -o test.elf -target=bluepill            examples/blinky1
+	tinygo build -size short -o test.elf -target=reelboard           examples/blinky1
+	tinygo build -size short -o test.elf -target=reelboard           examples/blinky2
+	tinygo build -size short -o test.elf -target=pca10056            examples/blinky1
+	tinygo build -size short -o test.elf -target=pca10056            examples/blinky2
+	tinygo build -size short -o test.elf -target=itsybitsy-m0        examples/blinky1
+	tinygo build -size short -o test.elf -target=feather-m0          examples/blinky1
+	tinygo build -size short -o test.elf -target=trinket-m0          examples/blinky1
+	tinygo build -size short -o test.elf -target=circuitplay-express examples/blinky1
+	tinygo build -size short -o test.elf -target=stm32f4disco        examples/blinky1
+	tinygo build -size short -o test.elf -target=stm32f4disco        examples/blinky2
+	tinygo build -size short -o test.elf -target=circuitplay-express examples/i2s
+	tinygo build -size short -o test.elf -target=gameboy-advance     examples/gba-display
+ifneq ($(AVR), 0)
+	tinygo build -size short -o test.elf -target=arduino             examples/blinky1
+	tinygo build -size short -o test.elf -target=digispark           examples/blinky1
+endif
+ifneq ($(RISCV), 0)
+	tinygo build -size short -o test.elf -target=hifive1b            examples/blinky1
+endif
+	tinygo build             -o wasm.wasm -target=wasm               examples/wasm/export
+	tinygo build             -o wasm.wasm -target=wasm               examples/wasm/main
+
+release: build/tinygo gen-device
+	@mkdir -p build/release/tinygo/bin
+	@mkdir -p build/release/tinygo/lib/clang/include
+	@mkdir -p build/release/tinygo/lib/CMSIS/CMSIS
+	@mkdir -p build/release/tinygo/lib/compiler-rt/lib
+	@mkdir -p build/release/tinygo/lib/nrfx
+	@mkdir -p build/release/tinygo/pkg/armv6m-none-eabi
+	@mkdir -p build/release/tinygo/pkg/armv7m-none-eabi
+	@mkdir -p build/release/tinygo/pkg/armv7em-none-eabi
+	@echo copying source files
+	@cp -p  build/tinygo                 build/release/tinygo/bin
+	@cp -p $(abspath $(CLANG_SRC))/lib/Headers/*.h build/release/tinygo/lib/clang/include
+	@cp -rp lib/CMSIS/CMSIS/Include      build/release/tinygo/lib/CMSIS/CMSIS
+	@cp -rp lib/CMSIS/README.md          build/release/tinygo/lib/CMSIS
+	@cp -rp lib/compiler-rt/lib/builtins build/release/tinygo/lib/compiler-rt/lib
+	@cp -rp lib/compiler-rt/LICENSE.TXT  build/release/tinygo/lib/compiler-rt
+	@cp -rp lib/compiler-rt/README.txt   build/release/tinygo/lib/compiler-rt
+	@cp -rp lib/nrfx/*                   build/release/tinygo/lib/nrfx
+	@cp -rp src                          build/release/tinygo/src
+	@cp -rp targets                      build/release/tinygo/targets
+	./build/tinygo build-builtins -target=armv6m-none-eabi  -o build/release/tinygo/pkg/armv6m-none-eabi/compiler-rt.a
+	./build/tinygo build-builtins -target=armv7m-none-eabi  -o build/release/tinygo/pkg/armv7m-none-eabi/compiler-rt.a
+	./build/tinygo build-builtins -target=armv7em-none-eabi -o build/release/tinygo/pkg/armv7em-none-eabi/compiler-rt.a
+	tar -czf build/release.tar.gz -C build/release tinygo

README.md

@@ -1,16 +1,11 @@
 # TinyGo - Go compiler for small places
 
-[![Linux](https://github.com/tinygo-org/tinygo/actions/workflows/linux.yml/badge.svg?branch=dev)](https://github.com/tinygo-org/tinygo/actions/workflows/linux.yml) [![macOS](https://github.com/tinygo-org/tinygo/actions/workflows/build-macos.yml/badge.svg?branch=dev)](https://github.com/tinygo-org/tinygo/actions/workflows/build-macos.yml) [![Windows](https://github.com/tinygo-org/tinygo/actions/workflows/windows.yml/badge.svg?branch=dev)](https://github.com/tinygo-org/tinygo/actions/workflows/windows.yml) [![Docker](https://github.com/tinygo-org/tinygo/actions/workflows/docker.yml/badge.svg?branch=dev)](https://github.com/tinygo-org/tinygo/actions/workflows/docker.yml) [![Nix](https://github.com/tinygo-org/tinygo/actions/workflows/nix.yml/badge.svg?branch=dev)](https://github.com/tinygo-org/tinygo/actions/workflows/nix.yml)
+[![CircleCI](https://circleci.com/gh/tinygo-org/tinygo/tree/dev.svg?style=svg)](https://circleci.com/gh/tinygo-org/tinygo/tree/dev)
 
-TinyGo is a Go compiler intended for use in small places such as microcontrollers, WebAssembly (wasm/wasi), and command-line tools.
+TinyGo is a Go compiler intended for use in small places such as microcontrollers, WebAssembly (Wasm), and command-line tools.
 
 It reuses libraries used by the [Go language tools](https://golang.org/pkg/go/) alongside [LLVM](http://llvm.org) to provide an alternative way to compile programs written in the Go programming language.
 
-> [!IMPORTANT]
-> You can help TinyGo with a financial contribution using OpenCollective. Please see https://opencollective.com/tinygo for more information. Thank you!
-
-## Embedded
-
 Here is an example program that blinks the built-in LED when run directly on any supported board with onboard LED:
 
 ```go
@@ -34,70 +29,39 @@ func main() {
 }
 ```
 
-The above program can be compiled and run without modification on an [Arduino Uno](https://tinygo.org/docs/reference/microcontrollers/boards/arduino-uno), an [Adafruit Circuit Playground Express](https://tinygo.org/docs/reference/microcontrollers/featured/circuitplay-express), a [Seeed Studio XIAO-ESP32S3](https://tinygo.org/docs/reference/microcontrollers/featured/xiao-esp32s3) or any of the many supported boards that have a built-in LED, just by setting the correct TinyGo compiler target. For example, this compiles and flashes an Arduino Uno:
+The above program can be compiled and run without modification on an Arduino Uno, an Adafruit ItsyBitsy M0, or any of the supported boards that have a built-in LED, just by setting the correct TinyGo compiler target. For example, this compiles and flashes an Arduino Uno:
 
 ```shell
-tinygo flash -target arduino-uno examples/blinky1
-```
-
-## WebAssembly
-
-TinyGo is very useful for compiling programs both for use in browsers (WASM) as well as for use on servers and other edge devices (WASI).
-
-TinyGo programs can run in [Fastly Compute](https://www.fastly.com/documentation/guides/compute/go/), [Fermyon Spin](https://developer.fermyon.com/spin/go-components), [wazero](https://wazero.io/languages/tinygo/) and many other WebAssembly runtimes.
-
-Here is a small TinyGo program for use by a WASI host application:
-
-```go
-package main
-
-//go:wasmexport add
-func add(x, y uint32) uint32 {
-	return x + y
-}
-```
-
-This compiles the above TinyGo program for use on any WASI Preview 1 runtime:
-
-```shell
-tinygo build -buildmode=c-shared -o add.wasm -target=wasip1 add.go
-```
-
-You can also use the same syntax as Go 1.24+:
-
-```shell
-GOOS=wasip1 GOARCH=wasm tinygo build -buildmode=c-shared -o add.wasm add.go
+tinygo flash -target arduino examples/blinky1
 ```
 
 ## Installation
 
 See the [getting started instructions](https://tinygo.org/getting-started/) for information on how to install TinyGo, as well as how to run the TinyGo compiler using our Docker container.
 
-## Supported targets
+## Supported boards/targets
 
-### Embedded
+You can compile TinyGo programs for microcontrollers, WebAssembly and Linux.
 
-You can compile TinyGo programs for over 150 different microcontroller boards.
+The following 15 microcontroller boards are currently supported:
 
-For more information, please see https://tinygo.org/docs/reference/microcontrollers/
+* [Adafruit Circuit Playground Express](https://www.adafruit.com/product/3333)
+* [Adafruit Feather M0](https://www.adafruit.com/product/2772)
+* [Adafruit ItsyBitsy M0](https://www.adafruit.com/product/3727)
+* [Adafruit Trinket M0](https://www.adafruit.com/product/3500)
+* [Arduino Nano33 IoT](https://store.arduino.cc/nano-33-iot)
+* [Arduino Uno](https://store.arduino.cc/arduino-uno-rev3)
+* [BBC micro:bit](https://microbit.org/)
+* [ST Micro STM32F103XX "Bluepill"](http://wiki.stm32duino.com/index.php?title=Blue_Pill)
+* [ST Micro STM32F407 "Discovery"](https://www.st.com/en/evaluation-tools/stm32f4discovery.html)
+* [Digispark](http://digistump.com/products/1)
+* [Nordic Semiconductor PCA10031](https://www.nordicsemi.com/eng/Products/nRF51-Dongle)
+* [Nordic Semiconductor PCA10040](https://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF52-DK)
+* [Nordic Semiconductor PCA10056](https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52840-DK)
+* [Makerdiary nRF52840-MDK](https://wiki.makerdiary.com/nrf52840-mdk/)
+* [Phytec reel board](https://www.phytec.eu/product-eu/internet-of-things/reelboard/)
 
-### WebAssembly
-
-TinyGo programs can be compiled for both WASM and WASI targets.
-
-For more information, see https://tinygo.org/docs/guides/webassembly/
-
-### Operating Systems
-
-You can also compile programs for Linux, macOS, and Windows targets.
-
-For more information:
-
-- Linux https://tinygo.org/docs/guides/linux/
-
-- macOS https://tinygo.org/docs/guides/macos/
-
-- Windows https://tinygo.org/docs/guides/windows/
+For more information, see [this list of boards](https://tinygo.org/microcontrollers/). Pull requests for additional support are welcome!
 
 ## Currently supported features:
 
@@ -122,7 +86,7 @@ should arrive fairly quickly (under 1 min): https://invite.slack.golangbridge.or
 
 Your contributions are welcome!
 
-Please take a look at our [Contributing](https://tinygo.org/docs/guides/contributing/) page on our web site for details.
+Please take a look at our [CONTRIBUTING.md](./CONTRIBUTING.md) document for details.
 
 ## Project Scope
 
@@ -136,13 +100,14 @@ Goals:
 
 Non-goals:
 
+* Using more than one core.
 * Be efficient while using zillions of goroutines. However, good goroutine support is certainly a goal.
 * Be as fast as `gc`. However, LLVM will probably be better at optimizing certain things so TinyGo might actually turn out to be faster for number crunching.
 * Be able to compile every Go program out there.
 
 ## Why this project exists
 
-> We never expected Go to be an embedded language, and so it’s got serious problems...
+> We never expected Go to be an embedded language and so its got serious problems...
 
 -- Rob Pike, [GopherCon 2014 Opening Keynote](https://www.youtube.com/watch?v=VoS7DsT1rdM&feature=youtu.be&t=2799)
 
@@ -153,7 +118,3 @@ The original reasoning was: if [Python](https://micropython.org/) can run on mic
 ## License
 
 This project is licensed under the BSD 3-clause license, just like the [Go project](https://golang.org/LICENSE) itself.
-
-Some code has been copied from the LLVM project and is therefore licensed under [a variant of the Apache 2.0 license](http://releases.llvm.org/11.0.0/LICENSE.TXT). This has been clearly indicated in the header of these files.
-
-Some code has been copied and/or ported from Paul Stoffregen's Teensy libraries and is therefore licensed under PJRC's license. This has been clearly indicated in the header of these files.

binutils.go

@@ -0,0 +1,160 @@
+package main
+
+import (
+	"debug/elf"
+	"sort"
+	"strings"
+)
+
+// Statistics about code size in a program.
+type ProgramSize struct {
+	Packages map[string]*PackageSize
+	Sum      *PackageSize
+	Code     uint64
+	Data     uint64
+	BSS      uint64
+}
+
+// Return the list of package names (ProgramSize.Packages) sorted
+// alphabetically.
+func (ps *ProgramSize) SortedPackageNames() []string {
+	names := make([]string, 0, len(ps.Packages))
+	for name := range ps.Packages {
+		names = append(names, name)
+	}
+	sort.Strings(names)
+	return names
+}
+
+// The size of a package, calculated from the linked object file.
+type PackageSize struct {
+	Code   uint64
+	ROData uint64
+	Data   uint64
+	BSS    uint64
+}
+
+// Flash usage in regular microcontrollers.
+func (ps *PackageSize) Flash() uint64 {
+	return ps.Code + ps.ROData + ps.Data
+}
+
+// Static RAM usage in regular microcontrollers.
+func (ps *PackageSize) RAM() uint64 {
+	return ps.Data + ps.BSS
+}
+
+type symbolList []elf.Symbol
+
+func (l symbolList) Len() int {
+	return len(l)
+}
+
+func (l symbolList) Less(i, j int) bool {
+	bind_i := elf.ST_BIND(l[i].Info)
+	bind_j := elf.ST_BIND(l[j].Info)
+	if l[i].Value == l[j].Value && bind_i != elf.STB_WEAK && bind_j == elf.STB_WEAK {
+		// sort weak symbols after non-weak symbols
+		return true
+	}
+	return l[i].Value < l[j].Value
+}
+
+func (l symbolList) Swap(i, j int) {
+	l[i], l[j] = l[j], l[i]
+}
+
+// Calculate program/data size breakdown of each package for a given ELF file.
+func Sizes(path string) (*ProgramSize, error) {
+	file, err := elf.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	var sumCode uint64
+	var sumData uint64
+	var sumBSS uint64
+	for _, section := range file.Sections {
+		if section.Flags&elf.SHF_ALLOC == 0 {
+			continue
+		}
+		if section.Type != elf.SHT_PROGBITS && section.Type != elf.SHT_NOBITS {
+			continue
+		}
+		if section.Type == elf.SHT_NOBITS {
+			sumBSS += section.Size
+		} else if section.Flags&elf.SHF_EXECINSTR != 0 {
+			sumCode += section.Size
+		} else if section.Flags&elf.SHF_WRITE != 0 {
+			sumData += section.Size
+		}
+	}
+
+	allSymbols, err := file.Symbols()
+	if err != nil {
+		return nil, err
+	}
+	symbols := make([]elf.Symbol, 0, len(allSymbols))
+	for _, symbol := range allSymbols {
+		symType := elf.ST_TYPE(symbol.Info)
+		if symbol.Size == 0 {
+			continue
+		}
+		if symType != elf.STT_FUNC && symType != elf.STT_OBJECT && symType != elf.STT_NOTYPE {
+			continue
+		}
+		if symbol.Section >= elf.SectionIndex(len(file.Sections)) {
+			continue
+		}
+		section := file.Sections[symbol.Section]
+		if section.Flags&elf.SHF_ALLOC == 0 {
+			continue
+		}
+		symbols = append(symbols, symbol)
+	}
+	sort.Sort(symbolList(symbols))
+
+	sizes := map[string]*PackageSize{}
+	var lastSymbolValue uint64
+	for _, symbol := range symbols {
+		symType := elf.ST_TYPE(symbol.Info)
+		//bind := elf.ST_BIND(symbol.Info)
+		section := file.Sections[symbol.Section]
+		pkgName := "(bootstrap)"
+		symName := strings.TrimLeft(symbol.Name, "(*")
+		dot := strings.IndexByte(symName, '.')
+		if dot > 0 {
+			pkgName = symName[:dot]
+		}
+		pkgSize := sizes[pkgName]
+		if pkgSize == nil {
+			pkgSize = &PackageSize{}
+			sizes[pkgName] = pkgSize
+		}
+		if lastSymbolValue != symbol.Value || lastSymbolValue == 0 {
+			if symType == elf.STT_FUNC {
+				pkgSize.Code += symbol.Size
+			} else if section.Flags&elf.SHF_WRITE != 0 {
+				if section.Type == elf.SHT_NOBITS {
+					pkgSize.BSS += symbol.Size
+				} else {
+					pkgSize.Data += symbol.Size
+				}
+			} else {
+				pkgSize.ROData += symbol.Size
+			}
+		}
+		lastSymbolValue = symbol.Value
+	}
+
+	sum := &PackageSize{}
+	for _, pkg := range sizes {
+		sum.Code += pkg.Code
+		sum.ROData += pkg.ROData
+		sum.Data += pkg.Data
+		sum.BSS += pkg.BSS
+	}
+
+	return &ProgramSize{Packages: sizes, Code: sumCode, Data: sumData, BSS: sumBSS, Sum: sum}, nil
+}

buildcache.go

@@ -0,0 +1,126 @@
+package main
+
+import (
+	"io"
+	"os"
+	"path/filepath"
+	"time"
+)
+
+// Get the cache directory, usually ~/.cache/tinygo
+func cacheDir() string {
+	dir, err := os.UserCacheDir()
+	if err != nil {
+		panic("could not find cache dir: " + err.Error())
+	}
+	return filepath.Join(dir, "tinygo")
+}
+
+// Return the newest timestamp of all the file paths passed in. Used to check
+// for stale caches.
+func cacheTimestamp(paths []string) (time.Time, error) {
+	var timestamp time.Time
+	for _, path := range paths {
+		st, err := os.Stat(path)
+		if err != nil {
+			return time.Time{}, err
+		}
+		if timestamp.IsZero() {
+			timestamp = st.ModTime()
+		} else if timestamp.Before(st.ModTime()) {
+			timestamp = st.ModTime()
+		}
+	}
+	return timestamp, nil
+}
+
+// Try to load a given file from the cache. Return "", nil if no cached file can
+// be found (or the file is stale), return the absolute path if there is a cache
+// and return an error on I/O errors.
+//
+// TODO: the configKey is currently ignored. It is supposed to be used as extra
+// data for the cache key, like the compiler version and arguments.
+func cacheLoad(name, configKey string, sourceFiles []string) (string, error) {
+	dir := cacheDir()
+	cachepath := filepath.Join(dir, name)
+	cacheStat, err := os.Stat(cachepath)
+	if os.IsNotExist(err) {
+		return "", nil // does not exist
+	} else if err != nil {
+		return "", err // cannot stat cache file
+	}
+
+	sourceTimestamp, err := cacheTimestamp(sourceFiles)
+	if err != nil {
+		return "", err // cannot stat source files
+	}
+
+	if cacheStat.ModTime().After(sourceTimestamp) {
+		return cachepath, nil
+	} else {
+		os.Remove(cachepath)
+		// stale cache
+		return "", nil
+	}
+}
+
+// Store the file located at tmppath in the cache with the given name. The
+// tmppath may or may not be gone afterwards.
+//
+// Note: the configKey is ignored, see cacheLoad.
+func cacheStore(tmppath, name, configKey string, sourceFiles []string) (string, error) {
+	// get the last modified time
+	if len(sourceFiles) == 0 {
+		panic("cache: no source files")
+	}
+
+	// TODO: check the config key
+
+	dir := cacheDir()
+	err := os.MkdirAll(dir, 0777)
+	if err != nil {
+		return "", err
+	}
+	cachepath := filepath.Join(dir, name)
+	err = moveFile(tmppath, cachepath)
+	if err != nil {
+		return "", err
+	}
+	return cachepath, nil
+}
+
+// moveFile renames the file from src to dst. If renaming doesn't work (for
+// example, the rename crosses a filesystem boundary), the file is copied and
+// the old file is removed.
+func moveFile(src, dst string) error {
+	err := os.Rename(src, dst)
+	if err == nil {
+		// Success!
+		return nil
+	}
+	// Failed to move, probably a different filesystem.
+	// Do a copy + remove.
+	inf, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer inf.Close()
+	outpath := dst + ".tmp"
+	outf, err := os.Create(outpath)
+	if err != nil {
+		return err
+	}
+
+	_, err = io.Copy(outf, inf)
+	if err != nil {
+		os.Remove(outpath)
+		return err
+	}
+
+	err = os.Rename(dst+".tmp", dst)
+	if err != nil {
+		return err
+	}
+
+	return outf.Close()
+}

builder/ar.go

@@ -1,249 +0,0 @@
-package builder
-
-import (
-	"bytes"
-	"debug/elf"
-	"debug/macho"
-	"debug/pe"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"time"
-
-	wasm "github.com/aykevl/go-wasm"
-	"github.com/blakesmith/ar"
-)
-
-// makeArchive creates an archive for static linking from a list of object files
-// given as a parameter. It is equivalent to the following command:
-//
-//	ar -rcs <archivePath> <objs...>
-func makeArchive(arfile *os.File, objs []string) error {
-	// Open the archive file.
-	arwriter := ar.NewWriter(arfile)
-	err := arwriter.WriteGlobalHeader()
-	if err != nil {
-		return &os.PathError{Op: "write ar header", Path: arfile.Name(), Err: err}
-	}
-
-	// Open all object files and read the symbols for the symbol table.
-	symbolTable := []struct {
-		name      string // symbol name
-		fileIndex int    // index into objfiles
-	}{}
-	archiveOffsets := make([]int32, len(objs))
-	for i, objpath := range objs {
-		objfile, err := os.Open(objpath)
-		if err != nil {
-			return err
-		}
-
-		// Read the symbols and add them to the symbol table.
-		if dbg, err := elf.NewFile(objfile); err == nil {
-			symbols, err := dbg.Symbols()
-			if err != nil {
-				return err
-			}
-			for _, symbol := range symbols {
-				bind := elf.ST_BIND(symbol.Info)
-				if bind != elf.STB_GLOBAL && bind != elf.STB_WEAK {
-					// Don't include local symbols (STB_LOCAL).
-					continue
-				}
-				if elf.ST_TYPE(symbol.Info) != elf.STT_FUNC && elf.ST_TYPE(symbol.Info) != elf.STT_OBJECT {
-					// Not a function.
-					continue
-				}
-				// Include in archive.
-				symbolTable = append(symbolTable, struct {
-					name      string
-					fileIndex int
-				}{symbol.Name, i})
-			}
-		} else if dbg, err := macho.NewFile(objfile); err == nil {
-			for _, symbol := range dbg.Symtab.Syms {
-				// See mach-o/nlist.h
-				if symbol.Type&0x0e != 0xe { // (symbol.Type & N_TYPE) != N_SECT
-					continue // undefined symbol
-				}
-				if symbol.Type&0x01 == 0 { // (symbol.Type & N_EXT) == 0
-					continue // internal symbol (static, etc)
-				}
-				symbolTable = append(symbolTable, struct {
-					name      string
-					fileIndex int
-				}{symbol.Name, i})
-			}
-		} else if dbg, err := pe.NewFile(objfile); err == nil {
-			for _, symbol := range dbg.Symbols {
-				if symbol.StorageClass != 2 {
-					continue
-				}
-				if symbol.SectionNumber == 0 {
-					continue
-				}
-				symbolTable = append(symbolTable, struct {
-					name      string
-					fileIndex int
-				}{symbol.Name, i})
-			}
-		} else if dbg, err := wasm.Parse(objfile); err == nil {
-			for _, s := range dbg.Sections {
-				switch section := s.(type) {
-				case *wasm.SectionLinking:
-					for _, symbol := range section.Symbols {
-						if symbol.Flags&wasm.LinkingSymbolFlagUndefined != 0 {
-							// Don't list undefined functions.
-							continue
-						}
-						if symbol.Flags&wasm.LinkingSymbolFlagBindingLocal != 0 {
-							// Don't include local symbols.
-							continue
-						}
-						if symbol.Kind != wasm.LinkingSymbolKindFunction && symbol.Kind != wasm.LinkingSymbolKindData {
-							// Link functions and data symbols.
-							// Some data symbols need to be included, such as
-							// __log_data.
-							continue
-						}
-						// Include in the archive.
-						symbolTable = append(symbolTable, struct {
-							name      string
-							fileIndex int
-						}{symbol.Name, i})
-					}
-				}
-			}
-		} else {
-			return fmt.Errorf("failed to open file %s as WASM, ELF or PE/COFF: %w", objpath, err)
-		}
-
-		// Close file, to avoid issues with too many open files (especially on
-		// MacOS X).
-		objfile.Close()
-	}
-
-	// Create the symbol table buffer.
-	// For some (sparse) details on the file format:
-	// https://en.wikipedia.org/wiki/Ar_(Unix)#System_V_(or_GNU)_variant
-	buf := &bytes.Buffer{}
-	binary.Write(buf, binary.BigEndian, int32(len(symbolTable)))
-	for range symbolTable {
-		// This is a placeholder index, it will be updated after all files have
-		// been written to the archive (see the end of this function).
-		err = binary.Write(buf, binary.BigEndian, int32(0))
-		if err != nil {
-			return err
-		}
-	}
-	for _, sym := range symbolTable {
-		_, err := buf.Write([]byte(sym.name + "\x00"))
-		if err != nil {
-			return err
-		}
-	}
-	for buf.Len()%2 != 0 {
-		// The symbol table must be aligned.
-		// This appears to be required by lld.
-		buf.WriteByte(0)
-	}
-
-	// Write the symbol table.
-	err = arwriter.WriteHeader(&ar.Header{
-		Name:    "/",
-		ModTime: time.Unix(0, 0),
-		Uid:     0,
-		Gid:     0,
-		Mode:    0,
-		Size:    int64(buf.Len()),
-	})
-	if err != nil {
-		return err
-	}
-
-	// Keep track of the start of the symbol table.
-	symbolTableStart, err := arfile.Seek(0, io.SeekCurrent)
-	if err != nil {
-		return err
-	}
-
-	// Write symbol table contents.
-	_, err = arfile.Write(buf.Bytes())
-	if err != nil {
-		return err
-	}
-
-	// Add all object files to the archive.
-	var copyBuf bytes.Buffer
-	for i, objpath := range objs {
-		objfile, err := os.Open(objpath)
-		if err != nil {
-			return err
-		}
-		defer objfile.Close()
-
-		// Store the start index, for when we'll update the symbol table with
-		// the correct file start indices.
-		offset, err := arfile.Seek(0, io.SeekCurrent)
-		if err != nil {
-			return err
-		}
-		if int64(int32(offset)) != offset {
-			return errors.New("large archives (4GB+) not supported: " + arfile.Name())
-		}
-		archiveOffsets[i] = int32(offset)
-
-		// Write the file header.
-		st, err := objfile.Stat()
-		if err != nil {
-			return err
-		}
-		err = arwriter.WriteHeader(&ar.Header{
-			Name:    filepath.Base(objfile.Name()),
-			ModTime: time.Unix(0, 0),
-			Uid:     0,
-			Gid:     0,
-			Mode:    0644,
-			Size:    st.Size(),
-		})
-		if err != nil {
-			return err
-		}
-
-		// Copy the file contents into the archive.
-		// First load all contents into a buffer, then write it all in one go to
-		// the archive file. This is a bit complicated, but is necessary because
-		// io.Copy can't deal with files that are of an odd size.
-		copyBuf.Reset()
-		n, err := io.Copy(&copyBuf, objfile)
-		if err != nil {
-			return fmt.Errorf("could not copy object file into ar file: %w", err)
-		}
-		if n != st.Size() {
-			return errors.New("file modified during ar creation: " + arfile.Name())
-		}
-		_, err = arwriter.Write(copyBuf.Bytes())
-		if err != nil {
-			return fmt.Errorf("could not copy object file into ar file: %w", err)
-		}
-
-		// File is not needed anymore.
-		objfile.Close()
-	}
-
-	// Create symbol indices.
-	indicesBuf := &bytes.Buffer{}
-	for _, sym := range symbolTable {
-		err = binary.Write(indicesBuf, binary.BigEndian, archiveOffsets[sym.fileIndex])
-		if err != nil {
-			return err
-		}
-	}
-
-	// Overwrite placeholder indices.
-	_, err = arfile.WriteAt(indicesBuf.Bytes(), symbolTableStart+4)
-	return err
-}

builder/bdwgc.go

@@ -1,91 +0,0 @@
-package builder
-
-// The well-known conservative Boehm-Demers-Weiser GC.
-// This file provides a way to compile this GC for use with TinyGo.
-
-import (
-	"path/filepath"
-	"strings"
-
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-var BoehmGC = Library{
-	name: "bdwgc",
-	cflags: func(target, headerPath string) []string {
-		libdir := filepath.Join(goenv.Get("TINYGOROOT"), "lib/bdwgc")
-		flags := []string{
-			// use a modern environment
-			"-DUSE_MMAP",              // mmap is available
-			"-DUSE_MUNMAP",            // return memory to the OS using munmap
-			"-DGC_BUILTIN_ATOMIC",     // use compiler intrinsics for atomic operations
-			"-DNO_EXECUTE_PERMISSION", // don't make the heap executable
-
-			// specific flags for TinyGo
-			"-DALL_INTERIOR_POINTERS",  // scan interior pointers (needed for Go)
-			"-DIGNORE_DYNAMIC_LOADING", // we don't support dynamic loading at the moment
-			"-DNO_GETCONTEXT",          // musl doesn't support getcontext()
-			"-DGC_DISABLE_INCREMENTAL", // don't mess with SIGSEGV and such
-
-			// Use a minimal environment.
-			"-DNO_MSGBOX_ON_ERROR", // don't call MessageBoxA on Windows
-			"-DDONT_USE_ATEXIT",
-			"-DNO_GETENV",          // smaller binary, more predictable configuration
-			"-DNO_CLOCK",           // don't use system clock
-			"-DNO_DEBUGGING",       // reduce code size
-			"-DGC_NO_FINALIZATION", // finalization is not used at the moment
-
-			// Special flag to work around the lack of __data_start in ld.lld.
-			// TODO: try to fix this in LLVM/lld directly so we don't have to
-			// work around it anymore.
-			"-DGC_DONT_REGISTER_MAIN_STATIC_DATA",
-
-			// Do not scan the stack. We have our own mechanism to do this.
-			"-DSTACK_NOT_SCANNED",
-			"-DNO_PROC_STAT",  // we scan the stack manually (don't read /proc/self/stat on Linux)
-			"-DSTACKBOTTOM=0", // dummy value, we scan the stack manually
-
-			// Assertions can be enabled while debugging GC issues.
-			//"-DGC_ASSERTIONS",
-
-			// We use our own way of dealing with threads (that is a bit hacky).
-			// See src/runtime/gc_boehm.go.
-			//"-DGC_THREADS",
-			//"-DTHREAD_LOCAL_ALLOC",
-
-			"-I" + libdir + "/include",
-		}
-		return flags
-	},
-	needsLibc: true,
-	sourceDir: func() string {
-		return filepath.Join(goenv.Get("TINYGOROOT"), "lib/bdwgc")
-	},
-	librarySources: func(target string, _ bool) ([]string, error) {
-		sources := []string{
-			"allchblk.c",
-			"alloc.c",
-			"blacklst.c",
-			"dbg_mlc.c",
-			"dyn_load.c",
-			"headers.c",
-			"mach_dep.c",
-			"malloc.c",
-			"mark.c",
-			"mark_rts.c",
-			"misc.c",
-			"new_hblk.c",
-			"os_dep.c",
-			"reclaim.c",
-		}
-		if strings.Split(target, "-")[2] == "windows" {
-			// Due to how the linker on Windows works (that doesn't allow
-			// undefined functions), we need to include these extra files.
-			sources = append(sources,
-				"mallocx.c",
-				"ptr_chck.c",
-			)
-		}
-		return sources, nil
-	},
-}

builder/builder_test.go

@@ -1,238 +0,0 @@
-package builder
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-	"runtime"
-	"strings"
-	"testing"
-
-	"github.com/tinygo-org/tinygo/compileopts"
-	"tinygo.org/x/go-llvm"
-)
-
-// Test whether the Clang generated "target-cpu" and "target-features"
-// attributes match the CPU and Features property in TinyGo target files.
-func TestClangAttributes(t *testing.T) {
-	var targetNames = []string{
-		// Please keep this list sorted!
-		"atmega328p",
-		"atmega1280",
-		"atmega1284p",
-		"atmega2560",
-		"attiny85",
-		"cortex-m0",
-		"cortex-m0plus",
-		"cortex-m3",
-		"cortex-m33",
-		"cortex-m4",
-		"cortex-m7",
-		"esp32c3",
-		"esp32c6",
-		"esp32s3",
-		"fe310",
-		"gameboy-advance",
-		"k210",
-		"nintendoswitch",
-		"riscv-qemu",
-		"tkey",
-		"uefi-amd64",
-		"wasip1",
-		"wasip2",
-		"wasm",
-		"wasm-unknown",
-	}
-	if hasBuiltinTools {
-		// hasBuiltinTools is set when TinyGo is statically linked with LLVM,
-		// which also implies it was built with Xtensa support.
-		targetNames = append(targetNames, "esp32", "esp8266")
-	}
-	for _, targetName := range targetNames {
-		t.Run(targetName, func(t *testing.T) {
-			testClangAttributes(t, &compileopts.Options{Target: targetName})
-		})
-	}
-
-	for _, options := range []*compileopts.Options{
-		{GOOS: "linux", GOARCH: "386"},
-		{GOOS: "linux", GOARCH: "amd64"},
-		{GOOS: "linux", GOARCH: "arm", GOARM: "5,softfloat"},
-		{GOOS: "linux", GOARCH: "arm", GOARM: "6,softfloat"},
-		{GOOS: "linux", GOARCH: "arm", GOARM: "7,softfloat"},
-		{GOOS: "linux", GOARCH: "arm", GOARM: "5,hardfloat"},
-		{GOOS: "linux", GOARCH: "arm", GOARM: "6,hardfloat"},
-		{GOOS: "linux", GOARCH: "arm", GOARM: "7,hardfloat"},
-		{GOOS: "linux", GOARCH: "arm64"},
-		{GOOS: "linux", GOARCH: "mips", GOMIPS: "hardfloat"},
-		{GOOS: "linux", GOARCH: "mipsle", GOMIPS: "hardfloat"},
-		{GOOS: "linux", GOARCH: "mips", GOMIPS: "softfloat"},
-		{GOOS: "linux", GOARCH: "mipsle", GOMIPS: "softfloat"},
-		{GOOS: "darwin", GOARCH: "amd64"},
-		{GOOS: "darwin", GOARCH: "arm64"},
-		{GOOS: "windows", GOARCH: "386"},
-		{GOOS: "windows", GOARCH: "amd64"},
-		{GOOS: "windows", GOARCH: "arm64"},
-	} {
-		name := "GOOS=" + options.GOOS + ",GOARCH=" + options.GOARCH
-		if options.GOARCH == "arm" {
-			name += ",GOARM=" + options.GOARM
-		}
-		if options.GOARCH == "mips" || options.GOARCH == "mipsle" {
-			name += ",GOMIPS=" + options.GOMIPS
-		}
-		t.Run(name, func(t *testing.T) {
-			testClangAttributes(t, options)
-		})
-	}
-}
-
-func testClangAttributes(t *testing.T, options *compileopts.Options) {
-	testDir := t.TempDir()
-
-	ctx := llvm.NewContext()
-	defer ctx.Dispose()
-
-	target, err := compileopts.LoadTarget(options)
-	if err != nil {
-		t.Fatalf("could not load target: %s", err)
-	}
-	config := compileopts.Config{
-		Options: options,
-		Target:  target,
-	}
-
-	// Create a very simple C input file.
-	srcpath := filepath.Join(testDir, "test.c")
-	err = os.WriteFile(srcpath, []byte("int add(int a, int b) { return a + b; }"), 0o666)
-	if err != nil {
-		t.Fatalf("could not write target file %s: %s", srcpath, err)
-	}
-
-	// Compile this file using Clang.
-	outpath := filepath.Join(testDir, "test.bc")
-	flags := append([]string{"-c", "-emit-llvm", "-o", outpath, srcpath}, config.CFlags(false)...)
-	if config.GOOS() == "darwin" {
-		// Silence some warnings that happen when testing GOOS=darwin on
-		// something other than MacOS.
-		flags = append(flags, "-Wno-missing-sysroot", "-Wno-incompatible-sysroot")
-	}
-	err = runCCompiler(flags...)
-	if err != nil {
-		t.Fatalf("failed to compile %s: %s", srcpath, err)
-	}
-
-	// Read the resulting LLVM bitcode.
-	mod, err := ctx.ParseBitcodeFile(outpath)
-	if err != nil {
-		t.Fatalf("could not parse bitcode file %s: %s", outpath, err)
-	}
-	defer mod.Dispose()
-
-	// Check whether the LLVM target matches.
-	// Use ClangTriple since LLVM 22 normalizes wasm32-unknown-wasi to wasip1.
-	expectedTriple := compileopts.ClangTriple(config.Triple())
-	if mod.Target() != expectedTriple {
-		t.Errorf("target has LLVM triple %#v but Clang makes it LLVM triple %#v", expectedTriple, mod.Target())
-	}
-
-	// Check the "target-cpu" and "target-features" string attribute of the add
-	// function.
-	add := mod.NamedFunction("add")
-	var cpu, features string
-	cpuAttr := add.GetStringAttributeAtIndex(-1, "target-cpu")
-	featuresAttr := add.GetStringAttributeAtIndex(-1, "target-features")
-	if !cpuAttr.IsNil() {
-		cpu = cpuAttr.GetStringValue()
-	}
-	if !featuresAttr.IsNil() {
-		features = featuresAttr.GetStringValue()
-	}
-	if cpu != config.CPU() {
-		t.Errorf("target has CPU %#v but Clang makes it CPU %#v", config.CPU(), cpu)
-	}
-	if features != config.Features() {
-		if hasBuiltinTools || runtime.GOOS != "linux" {
-			// Skip this step when using an external Clang invocation on Linux.
-			// The reason is that Debian has patched Clang in a way that
-			// modifies the LLVM features string, changing lots of FPU/float
-			// related flags. We want to test vanilla Clang, not Debian Clang.
-			//
-			// Rather than requiring an exact match (which breaks across LLVM
-			// versions as new features are added), check that every feature
-			// TinyGo specifies is consistent with what Clang produces:
-			//  - A "+feature" in TinyGo must appear in Clang's output.
-			//  - A "-feature" in TinyGo must not be "+feature" in Clang's output.
-			checkFeatureFlags(t, config.Features(), features)
-		}
-	}
-}
-
-// checkFeatureFlags verifies that all features specified by TinyGo's target
-// configuration are consistent with Clang's output. This allows Clang to add
-// new features across LLVM versions without breaking the test.
-func checkFeatureFlags(t *testing.T, targetFeatures, clangFeatures string) {
-	t.Helper()
-
-	// Build a set of Clang's features for fast lookup.
-	clangSet := make(map[string]bool) // feature name -> enabled
-	for _, f := range strings.Split(clangFeatures, ",") {
-		f = strings.TrimSpace(f)
-		if len(f) < 2 {
-			continue
-		}
-		enabled := f[0] == '+'
-		name := f[1:]
-		clangSet[name] = enabled
-	}
-
-	// Check each feature that TinyGo specifies.
-	var missing, conflicts []string
-	for _, f := range strings.Split(targetFeatures, ",") {
-		f = strings.TrimSpace(f)
-		if len(f) < 2 {
-			continue
-		}
-		wantEnabled := f[0] == '+'
-		name := f[1:]
-
-		clangEnabled, inClang := clangSet[name]
-		if wantEnabled && (!inClang || !clangEnabled) {
-			// TinyGo requires +feature but Clang doesn't enable it.
-			missing = append(missing, f)
-		} else if !wantEnabled && inClang && clangEnabled {
-			// TinyGo requires -feature but Clang enables it.
-			conflicts = append(conflicts, fmt.Sprintf("target has %q but Clang has %q", f, "+"+name))
-		}
-	}
-
-	if len(missing) > 0 {
-		t.Errorf("target specifies features not present in Clang output: %s\n\ttarget features: %s\n\tclang features:  %s",
-			strings.Join(missing, ", "), targetFeatures, clangFeatures)
-	}
-	if len(conflicts) > 0 {
-		t.Errorf("target disables features that Clang enables: %s",
-			strings.Join(conflicts, "; "))
-	}
-}
-
-// This TestMain is necessary because TinyGo may also be invoked to run certain
-// LLVM tools in a separate process. Not capturing these invocations would lead
-// to recursive tests.
-func TestMain(m *testing.M) {
-	if len(os.Args) >= 2 {
-		switch os.Args[1] {
-		case "clang", "ld.lld", "wasm-ld":
-			// Invoke a specific tool.
-			err := RunTool(os.Args[1], os.Args[2:]...)
-			if err != nil {
-				fmt.Fprintln(os.Stderr, err)
-				os.Exit(1)
-			}
-			os.Exit(0)
-		}
-	}
-
-	// Run normal tests.
-	os.Exit(m.Run())
-}

builder/buildid.go

@@ -1,127 +0,0 @@
-package builder
-
-import (
-	"bytes"
-	"debug/elf"
-	"debug/macho"
-	"encoding/binary"
-	"fmt"
-	"io"
-	"os"
-	"runtime"
-)
-
-// ReadBuildID reads the build ID from the currently running executable.
-func ReadBuildID() ([]byte, error) {
-	executable, err := os.Executable()
-	if err != nil {
-		return nil, err
-	}
-	f, err := os.Open(executable)
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-
-	switch runtime.GOOS {
-	case "linux", "freebsd", "android":
-		// Read the GNU build id section. (Not sure about FreeBSD though...)
-		file, err := elf.NewFile(f)
-		if err != nil {
-			return nil, err
-		}
-		var gnuID, goID []byte
-		for _, section := range file.Sections {
-			if section.Type != elf.SHT_NOTE ||
-				(section.Name != ".note.gnu.build-id" && section.Name != ".note.go.buildid") {
-				continue
-			}
-			buf := make([]byte, section.Size)
-			n, err := section.ReadAt(buf, 0)
-			if uint64(n) != section.Size || err != nil {
-				return nil, fmt.Errorf("could not read build id: %w", err)
-			}
-			if section.Name == ".note.gnu.build-id" {
-				gnuID = buf
-			} else {
-				goID = buf
-			}
-		}
-		if gnuID != nil {
-			return gnuID, nil
-		} else if goID != nil {
-			return goID, nil
-		}
-	case "darwin":
-		// Read the LC_UUID load command, which contains the equivalent of a
-		// build ID.
-		file, err := macho.NewFile(f)
-		if err != nil {
-			return nil, err
-		}
-		for _, load := range file.Loads {
-			// Unfortunately, the debug/macho package doesn't support the
-			// LC_UUID command directly. So we have to read it from
-			// macho.LoadBytes.
-			load, ok := load.(macho.LoadBytes)
-			if !ok {
-				continue
-			}
-			raw := load.Raw()
-			command := binary.LittleEndian.Uint32(raw)
-			if command != 0x1b {
-				// Looking for the LC_UUID load command.
-				// LC_UUID is defined here as 0x1b:
-				// https://opensource.apple.com/source/xnu/xnu-4570.71.2/EXTERNAL_HEADERS/mach-o/loader.h.auto.html
-				continue
-			}
-			return raw[4:], nil
-		}
-
-		// Normally we would have found a build ID by now. But not on Nix,
-		// unfortunately, because Nix adds -no_uuid for some reason:
-		// https://github.com/NixOS/nixpkgs/issues/178366
-		// Fall back to the same implementation that we use for Windows.
-		id, err := readRawGoBuildID(f, 32*1024)
-		if len(id) != 0 || err != nil {
-			return id, err
-		}
-	default:
-		// On other platforms (such as Windows) there isn't such a convenient
-		// build ID. Luckily, Go does have an equivalent of the build ID, which
-		// is stored as a special symbol named go.buildid. You can read it
-		// using `go tool buildid`, but the code below extracts it directly
-		// from the binary.
-		// Unfortunately, because of stripping with the -w flag, no symbol
-		// table might be available. Therefore, we have to scan the binary
-		// directly. Luckily the build ID is always at the start of the file.
-		// For details, see:
-		// https://github.com/golang/go/blob/master/src/cmd/internal/buildid/buildid.go
-		id, err := readRawGoBuildID(f, 4096)
-		if len(id) != 0 || err != nil {
-			return id, err
-		}
-	}
-	return nil, fmt.Errorf("could not find build ID in %v", executable)
-}
-
-// The Go toolchain stores a build ID in the binary that we can use, as a
-// fallback if binary file specific build IDs can't be obtained.
-// This function reads that build ID from the binary.
-func readRawGoBuildID(f *os.File, prefixSize int) ([]byte, error) {
-	fileStart := make([]byte, prefixSize)
-	_, err := io.ReadFull(f, fileStart)
-	if err != nil {
-		return nil, fmt.Errorf("could not read build id from %s: %v", f.Name(), err)
-	}
-	index := bytes.Index(fileStart, []byte("\xff Go build ID: \""))
-	if index < 0 || index > len(fileStart)-103 {
-		return nil, fmt.Errorf("could not find build id in %s", f.Name())
-	}
-	buf := fileStart[index : index+103]
-	if bytes.HasPrefix(buf, []byte("\xff Go build ID: \"")) && bytes.HasSuffix(buf, []byte("\"\n \xff")) {
-		return buf[len("\xff Go build ID: \"") : len(buf)-1], nil
-	}
-
-	return nil, nil
-}

builder/builtins.go

@@ -1,271 +0,0 @@
-package builder
-
-import (
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/tinygo-org/tinygo/compileopts"
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-// These are the GENERIC_SOURCES according to CMakeList.txt except for
-// divmodsi4.c and udivmodsi4.c.
-var genericBuiltins = []string{
-	"absvdi2.c",
-	"absvsi2.c",
-	"absvti2.c",
-	"adddf3.c",
-	"addsf3.c",
-	"addvdi3.c",
-	"addvsi3.c",
-	"addvti3.c",
-	"apple_versioning.c",
-	"ashldi3.c",
-	"ashlti3.c",
-	"ashrdi3.c",
-	"ashrti3.c",
-	"bswapdi2.c",
-	"bswapsi2.c",
-	"clzdi2.c",
-	"clzsi2.c",
-	"clzti2.c",
-	"cmpdi2.c",
-	"cmpti2.c",
-	"comparedf2.c",
-	"comparesf2.c",
-	"ctzdi2.c",
-	"ctzsi2.c",
-	"ctzti2.c",
-	"divdc3.c",
-	"divdf3.c",
-	"divdi3.c",
-	"divmoddi4.c",
-	//"divmodsi4.c",
-	"divmodti4.c",
-	"divsc3.c",
-	"divsf3.c",
-	"divsi3.c",
-	"divti3.c",
-	"extendsfdf2.c",
-	"extendhfsf2.c",
-	"ffsdi2.c",
-	"ffssi2.c",
-	"ffsti2.c",
-	"fixdfdi.c",
-	"fixdfsi.c",
-	"fixdfti.c",
-	"fixsfdi.c",
-	"fixsfsi.c",
-	"fixsfti.c",
-	"fixunsdfdi.c",
-	"fixunsdfsi.c",
-	"fixunsdfti.c",
-	"fixunssfdi.c",
-	"fixunssfsi.c",
-	"fixunssfti.c",
-	"floatdidf.c",
-	"floatdisf.c",
-	"floatsidf.c",
-	"floatsisf.c",
-	"floattidf.c",
-	"floattisf.c",
-	"floatundidf.c",
-	"floatundisf.c",
-	"floatunsidf.c",
-	"floatunsisf.c",
-	"floatuntidf.c",
-	"floatuntisf.c",
-	"fp_mode.c",
-	//"int_util.c",
-	"lshrdi3.c",
-	"lshrti3.c",
-	"moddi3.c",
-	"modsi3.c",
-	"modti3.c",
-	"muldc3.c",
-	"muldf3.c",
-	"muldi3.c",
-	"mulodi4.c",
-	"mulosi4.c",
-	"muloti4.c",
-	"mulsc3.c",
-	"mulsf3.c",
-	"multi3.c",
-	"mulvdi3.c",
-	"mulvsi3.c",
-	"mulvti3.c",
-	"negdf2.c",
-	"negdi2.c",
-	"negsf2.c",
-	"negti2.c",
-	"negvdi2.c",
-	"negvsi2.c",
-	"negvti2.c",
-	"os_version_check.c",
-	"paritydi2.c",
-	"paritysi2.c",
-	"parityti2.c",
-	"popcountdi2.c",
-	"popcountsi2.c",
-	"popcountti2.c",
-	"powidf2.c",
-	"powisf2.c",
-	"subdf3.c",
-	"subsf3.c",
-	"subvdi3.c",
-	"subvsi3.c",
-	"subvti3.c",
-	"trampoline_setup.c",
-	"truncdfhf2.c",
-	"truncdfsf2.c",
-	"truncsfhf2.c",
-	"ucmpdi2.c",
-	"ucmpti2.c",
-	"udivdi3.c",
-	"udivmoddi4.c",
-	//"udivmodsi4.c",
-	"udivmodti4.c",
-	"udivsi3.c",
-	"udivti3.c",
-	"umoddi3.c",
-	"umodsi3.c",
-	"umodti3.c",
-}
-
-// These are the GENERIC_TF_SOURCES as of LLVM 18.
-// They are not needed on all platforms (32-bit platforms usually don't need
-// these) but they seem to compile fine so it's easier to include them.
-var genericBuiltins128 = []string{
-	"addtf3.c",
-	"comparetf2.c",
-	"divtc3.c",
-	"divtf3.c",
-	"extenddftf2.c",
-	"extendhftf2.c",
-	"extendsftf2.c",
-	"fixtfdi.c",
-	"fixtfsi.c",
-	"fixtfti.c",
-	"fixunstfdi.c",
-	"fixunstfsi.c",
-	"fixunstfti.c",
-	"floatditf.c",
-	"floatsitf.c",
-	"floattitf.c",
-	"floatunditf.c",
-	"floatunsitf.c",
-	"floatuntitf.c",
-	"multc3.c",
-	"multf3.c",
-	"powitf2.c",
-	"subtf3.c",
-	"trunctfdf2.c",
-	"trunctfhf2.c",
-	"trunctfsf2.c",
-}
-
-var aeabiBuiltins = []string{
-	"arm/aeabi_cdcmp.S",
-	"arm/aeabi_cdcmpeq_check_nan.c",
-	"arm/aeabi_cfcmp.S",
-	"arm/aeabi_cfcmpeq_check_nan.c",
-	"arm/aeabi_dcmp.S",
-	"arm/aeabi_div0.c",
-	"arm/aeabi_drsub.c",
-	"arm/aeabi_fcmp.S",
-	"arm/aeabi_frsub.c",
-	"arm/aeabi_idivmod.S",
-	"arm/aeabi_ldivmod.S",
-	"arm/aeabi_memcmp.S",
-	"arm/aeabi_memcpy.S",
-	"arm/aeabi_memmove.S",
-	"arm/aeabi_memset.S",
-	"arm/aeabi_uidivmod.S",
-	"arm/aeabi_uldivmod.S",
-
-	// These two are not technically EABI builtins but are used by them and only
-	// seem to be used on ARM. LLVM seems to use __divsi3 and __modsi3 on most
-	// other architectures.
-	// Most importantly, they have a different calling convention on AVR so
-	// should not be used on AVR.
-	"divmodsi4.c",
-	"udivmodsi4.c",
-}
-
-var avrBuiltins = []string{
-	"avr/divmodhi4.S",
-	"avr/divmodqi4.S",
-	"avr/mulhi3.S",
-	"avr/mulqi3.S",
-	"avr/udivmodhi4.S",
-	"avr/udivmodqi4.S",
-}
-
-// Builtins needed specifically for windows/386.
-var windowsI386Builtins = []string{
-	"i386/chkstk.S",  // __chkstk_ms
-	"i386/chkstk2.S", // _alloca (__alloca)
-}
-
-// Builtins needed specifically for windows/amd64.
-var windowsAMD64Builtins = []string{
-	"x86_64/chkstk.S",
-}
-
-// Builtins needed specifically for windows/arm64.
-var windowsARM64Builtins = []string{
-	"aarch64/chkstk.S",
-}
-
-// libCompilerRT is a library with symbols required by programs compiled with
-// LLVM. These symbols are for operations that cannot be emitted with a single
-// instruction or a short sequence of instructions for that target.
-//
-// For more information, see: https://compiler-rt.llvm.org/
-var libCompilerRT = Library{
-	name: "compiler-rt",
-	cflags: func(target, headerPath string) []string {
-		return []string{"-Werror", "-Wall", "-std=c11", "-nostdlibinc"}
-	},
-	sourceDir: func() string {
-		llvmDir := filepath.Join(goenv.Get("TINYGOROOT"), "llvm-project/compiler-rt/lib/builtins")
-		if _, err := os.Stat(llvmDir); err == nil {
-			// Release build.
-			return llvmDir
-		}
-		// Development build.
-		return filepath.Join(goenv.Get("TINYGOROOT"), "lib/compiler-rt-builtins")
-	},
-	librarySources: func(target string, _ bool) ([]string, error) {
-		builtins := append([]string{}, genericBuiltins...) // copy genericBuiltins
-		switch compileopts.CanonicalArchName(target) {
-		case "arm":
-			builtins = append(builtins, aeabiBuiltins...)
-		case "avr":
-			builtins = append(builtins, avrBuiltins...)
-		case "x86_64":
-			builtins = append(builtins, genericBuiltins128...)
-			if isWindowsTriple(target) {
-				builtins = append(builtins, windowsAMD64Builtins...)
-			}
-		case "aarch64":
-			builtins = append(builtins, genericBuiltins128...)
-			if isWindowsTriple(target) {
-				builtins = append(builtins, windowsARM64Builtins...)
-			}
-		case "riscv64":
-			builtins = append(builtins, genericBuiltins128...)
-		case "i386":
-			if isWindowsTriple(target) {
-				builtins = append(builtins, windowsI386Builtins...)
-			}
-		}
-		return builtins, nil
-	},
-}
-
-func isWindowsTriple(target string) bool {
-	parts := strings.Split(target, "-")
-	return len(parts) > 2 && parts[2] == "windows"
-}

builder/cc.go

@@ -1,318 +0,0 @@
-package builder
-
-// This file implements a wrapper around the C compiler (Clang) which uses a
-// build cache.
-
-import (
-	"crypto/sha512"
-	"encoding/hex"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io"
-	"io/fs"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-	"unicode"
-
-	"github.com/tinygo-org/tinygo/goenv"
-	"tinygo.org/x/go-llvm"
-)
-
-// compileAndCacheCFile compiles a C or assembly file using a build cache.
-// Compiling the same file again (if nothing changed, including included header
-// files) the output is loaded from the build cache instead.
-//
-// Its operation is a bit complex (more complex than Go package build caching)
-// because the list of file dependencies is only known after the file is
-// compiled. However, luckily compilers have a flag to write a list of file
-// dependencies in Makefile syntax which can be used for caching.
-//
-// Because of this complexity, every file has in fact two cached build outputs:
-// the file itself, and the list of dependencies. Its operation is as follows:
-//
-//	depfile = hash(path, compiler, cflags, ...)
-//	if depfile exists:
-//	  outfile = hash of all files and depfile name
-//	  if outfile exists:
-//	    # cache hit
-//	    return outfile
-//	# cache miss
-//	tmpfile = compile file
-//	read dependencies (side effect of compile)
-//	write depfile
-//	outfile = hash of all files and depfile name
-//	rename tmpfile to outfile
-//
-// There are a few edge cases that are not handled:
-//   - If a file is added to an include path, that file may be included instead of
-//     some other file. This would be fixed by also including lookup failures in the
-//     dependencies file, but I'm not aware of a compiler which does that.
-//   - The Makefile syntax that compilers output has issues, see readDepFile for
-//     details.
-//   - A header file may be changed to add/remove an include. This invalidates the
-//     depfile but without invalidating its name. For this reason, the depfile is
-//     written on each new compilation (even when it seems unnecessary). However, it
-//     could in rare cases lead to a stale file fetched from the cache.
-func compileAndCacheCFile(abspath, tmpdir string, cflags []string, printCommands func(string, ...string)) (string, error) {
-	// Hash input file.
-	fileHash, err := hashFile(abspath)
-	if err != nil {
-		return "", err
-	}
-
-	// Acquire a lock (if supported).
-	unlock := lock(filepath.Join(goenv.Get("GOCACHE"), fileHash+".c.lock"))
-	defer unlock()
-
-	// Create cache key for the dependencies file.
-	buf, err := json.Marshal(struct {
-		Path        string
-		Hash        string
-		Flags       []string
-		LLVMVersion string
-	}{
-		Path:        abspath,
-		Hash:        fileHash,
-		Flags:       cflags,
-		LLVMVersion: llvm.Version,
-	})
-	if err != nil {
-		panic(err) // shouldn't happen
-	}
-	depfileNameHashBuf := sha512.Sum512_224(buf)
-	depfileNameHash := hex.EncodeToString(depfileNameHashBuf[:])
-
-	// Load dependencies file, if possible.
-	depfileName := "dep-" + depfileNameHash + ".json"
-	depfileCachePath := filepath.Join(goenv.Get("GOCACHE"), depfileName)
-	depfileBuf, err := os.ReadFile(depfileCachePath)
-	var dependencies []string // sorted list of dependency paths
-	if err == nil {
-		// There is a dependency file, that's great!
-		// Parse it first.
-		err := json.Unmarshal(depfileBuf, &dependencies)
-		if err != nil {
-			return "", fmt.Errorf("could not parse dependencies JSON: %w", err)
-		}
-
-		// Obtain hashes of all the files listed as a dependency.
-		outpath, err := makeCFileCachePath(dependencies, depfileNameHash)
-		if err == nil {
-			if _, err := os.Stat(outpath); err == nil {
-				return outpath, nil
-			} else if !errors.Is(err, fs.ErrNotExist) {
-				return "", err
-			}
-		}
-	} else if !errors.Is(err, fs.ErrNotExist) {
-		// expected either nil or IsNotExist
-		return "", err
-	}
-
-	objTmpFile, err := os.CreateTemp(goenv.Get("GOCACHE"), "tmp-*.bc")
-	if err != nil {
-		return "", err
-	}
-	objTmpFile.Close()
-	depTmpFile, err := os.CreateTemp(tmpdir, "dep-*.d")
-	if err != nil {
-		return "", err
-	}
-	depTmpFile.Close()
-	flags := append([]string{}, cflags...)                                                 // copy cflags
-	flags = append(flags, "-MD", "-MV", "-MTdeps", "-MF", depTmpFile.Name(), "-flto=thin") // autogenerate dependencies
-	flags = append(flags, "-c", "-o", objTmpFile.Name(), abspath)
-	if strings.ToLower(filepath.Ext(abspath)) == ".s" {
-		// If this is an assembly file (.s or .S, lowercase or uppercase), then
-		// we'll need to add -Qunused-arguments because many parameters are
-		// relevant to C, not assembly. And with -Werror, having meaningless
-		// flags (for the assembler) is a compiler error.
-		flags = append(flags, "-Qunused-arguments")
-	}
-	if printCommands != nil {
-		printCommands("clang", flags...)
-	}
-	err = runCCompiler(flags...)
-	if err != nil {
-		return "", &commandError{"failed to build", abspath, err}
-	}
-
-	// Create sorted and uniqued slice of dependencies.
-	dependencyPaths, err := readDepFile(depTmpFile.Name())
-	if err != nil {
-		return "", err
-	}
-	dependencyPaths = append(dependencyPaths, abspath) // necessary for .s files
-	dependencySet := make(map[string]struct{}, len(dependencyPaths))
-	var dependencySlice []string
-	for _, path := range dependencyPaths {
-		if _, ok := dependencySet[path]; ok {
-			continue
-		}
-		dependencySet[path] = struct{}{}
-		dependencySlice = append(dependencySlice, path)
-	}
-	sort.Strings(dependencySlice)
-
-	// Write dependencies file.
-	f, err := os.CreateTemp(filepath.Dir(depfileCachePath), depfileName)
-	if err != nil {
-		return "", err
-	}
-
-	buf, err = json.MarshalIndent(dependencySlice, "", "\t")
-	if err != nil {
-		panic(err) // shouldn't happen
-	}
-	_, err = f.Write(buf)
-	if err != nil {
-		return "", err
-	}
-	err = f.Close()
-	if err != nil {
-		return "", err
-	}
-	err = os.Rename(f.Name(), depfileCachePath)
-	if err != nil {
-		return "", err
-	}
-
-	// Move temporary object file to final location.
-	outpath, err := makeCFileCachePath(dependencySlice, depfileNameHash)
-	if err != nil {
-		return "", err
-	}
-	err = os.Rename(objTmpFile.Name(), outpath)
-	if err != nil {
-		return "", err
-	}
-
-	return outpath, nil
-}
-
-// Create a cache path (a path in GOCACHE) to store the output of a compiler
-// job. This path is based on the dep file name (which is a hash of metadata
-// including compiler flags) and the hash of all input files in the paths slice.
-func makeCFileCachePath(paths []string, depfileNameHash string) (string, error) {
-	// Hash all input files.
-	fileHashes := make(map[string]string, len(paths))
-	for _, path := range paths {
-		hash, err := hashFile(path)
-		if err != nil {
-			return "", err
-		}
-		fileHashes[path] = hash
-	}
-
-	// Calculate a cache key based on the above hashes.
-	buf, err := json.Marshal(struct {
-		DepfileHash string
-		FileHashes  map[string]string
-	}{
-		DepfileHash: depfileNameHash,
-		FileHashes:  fileHashes,
-	})
-	if err != nil {
-		panic(err) // shouldn't happen
-	}
-	outFileNameBuf := sha512.Sum512_224(buf)
-	cacheKey := hex.EncodeToString(outFileNameBuf[:])
-
-	outpath := filepath.Join(goenv.Get("GOCACHE"), "obj-"+cacheKey+".bc")
-	return outpath, nil
-}
-
-// hashFile hashes the given file path and returns the hash as a hex string.
-func hashFile(path string) (string, error) {
-	f, err := os.Open(path)
-	if err != nil {
-		return "", fmt.Errorf("failed to hash file: %w", err)
-	}
-	defer f.Close()
-	fileHasher := sha512.New512_224()
-	_, err = io.Copy(fileHasher, f)
-	if err != nil {
-		return "", fmt.Errorf("failed to hash file: %w", err)
-	}
-	return hex.EncodeToString(fileHasher.Sum(nil)), nil
-}
-
-// readDepFile reads a dependency file in NMake (Visual Studio make) format. The
-// file is assumed to have a single target named deps.
-//
-// There are roughly three make syntax variants:
-//   - BSD make, which doesn't support any escaping. This means that many special
-//     characters are not supported in file names.
-//   - GNU make, which supports escaping using a backslash but when it fails to
-//     find a file it tries to fall back with the literal path name (to match BSD
-//     make).
-//   - NMake (Visual Studio) and Jom, which simply quote the string if there are
-//     any weird characters.
-//
-// Clang supports two variants: a format that's a compromise between BSD and GNU
-// make (and is buggy to match GCC which is equally buggy), and NMake/Jom, which
-// is at least somewhat sane. This last format isn't perfect either: it does not
-// correctly handle filenames with quote marks in them. Those are generally not
-// allowed on Windows, but of course can be used on POSIX like systems. Still,
-// it's the most sane of any of the formats so readDepFile will use that format.
-func readDepFile(filename string) ([]string, error) {
-	buf, err := os.ReadFile(filename)
-	if err != nil {
-		return nil, err
-	}
-	if len(buf) == 0 {
-		return nil, nil
-	}
-	return parseDepFile(string(buf))
-}
-
-func parseDepFile(s string) ([]string, error) {
-	// This function makes no attempt at parsing anything other than Clang -MD
-	// -MV output.
-
-	// For Windows: replace CRLF with LF to make the logic below simpler.
-	s = strings.ReplaceAll(s, "\r\n", "\n")
-
-	// Collapse all lines ending in a backslash. These backslashes are really
-	// just a way to continue a line without making very long lines.
-	s = strings.ReplaceAll(s, "\\\n", " ")
-
-	// Only use the first line, which is expected to begin with "deps:".
-	line, _, _ := strings.Cut(s, "\n")
-	if !strings.HasPrefix(line, "deps:") {
-		return nil, errors.New("readDepFile: expected 'deps:' prefix")
-	}
-	line = strings.TrimSpace(line[len("deps:"):])
-
-	var deps []string
-	for line != "" {
-		if line[0] == '"' {
-			// File path is quoted. Path ends with double quote.
-			// This does not handle double quotes in path names, which is a
-			// problem on non-Windows systems.
-			line = line[1:]
-			end := strings.IndexByte(line, '"')
-			if end < 0 {
-				return nil, errors.New("readDepFile: path is incorrectly quoted")
-			}
-			dep := line[:end]
-			line = strings.TrimSpace(line[end+1:])
-			deps = append(deps, dep)
-		} else {
-			// File path is not quoted. Path ends in space or EOL.
-			end := strings.IndexFunc(line, unicode.IsSpace)
-			if end < 0 {
-				// last dependency
-				deps = append(deps, line)
-				break
-			}
-			dep := line[:end]
-			line = strings.TrimSpace(line[end:])
-			deps = append(deps, dep)
-		}
-	}
-	return deps, nil
-}

builder/cc1as.cpp

@@ -1,566 +0,0 @@
-//go:build byollvm
-
-// Source: https://github.com/llvm/llvm-project/blob/main/clang/tools/driver/cc1as_main.cpp
-// This file needs to be updated each LLVM release.
-// There are a few small modifications to make, like:
-//   * ExecuteAssembler is made non-static.
-//   * The struct AssemblerImplementation is moved to cc1as.h so it can be
-//     included elsewhere.
-
-//===-- cc1as.cpp - Clang Assembler  --------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This is the entry point to the clang -cc1as functionality, which implements
-// the direct interface to the LLVM MC based assembler.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Basic/Diagnostic.h"
-#include "clang/Basic/DiagnosticOptions.h"
-#include "clang/Driver/DriverDiagnostic.h"
-#include "clang/Options/Options.h"
-#include "clang/Frontend/FrontendDiagnostic.h"
-#include "clang/Frontend/TextDiagnosticPrinter.h"
-#include "clang/Frontend/Utils.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/MC/MCAsmBackend.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCCodeEmitter.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCInstPrinter.h"
-#include "llvm/MC/MCInstrInfo.h"
-#include "llvm/MC/MCObjectFileInfo.h"
-#include "llvm/MC/MCObjectWriter.h"
-#include "llvm/MC/MCParser/MCAsmParser.h"
-#include "llvm/MC/MCParser/MCTargetAsmParser.h"
-#include "llvm/MC/MCRegisterInfo.h"
-#include "llvm/MC/MCSectionMachO.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/MC/MCTargetOptions.h"
-#include "llvm/MC/TargetRegistry.h"
-#include "llvm/Option/Arg.h"
-#include "llvm/Option/ArgList.h"
-#include "llvm/Option/OptTable.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/Path.h"
-#include "llvm/Support/Process.h"
-#include "llvm/Support/Signals.h"
-#include "llvm/Support/SourceMgr.h"
-#include "llvm/Support/TargetSelect.h"
-#include "llvm/Support/Timer.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/TargetParser/Host.h"
-#include "llvm/TargetParser/Triple.h"
-#include <memory>
-#include <optional>
-#include <system_error>
-using namespace clang;
-using namespace clang::options;
-using namespace llvm;
-using namespace llvm::opt;
-
-#include "cc1as.h"
-
-bool AssemblerInvocation::CreateFromArgs(AssemblerInvocation &Opts,
-                                         ArrayRef<const char *> Argv,
-                                         DiagnosticsEngine &Diags) {
-  bool Success = true;
-
-  // Parse the arguments.
-  const OptTable &OptTbl = getDriverOptTable();
-
-  llvm::opt::Visibility VisibilityMask(options::CC1AsOption);
-  unsigned MissingArgIndex, MissingArgCount;
-  InputArgList Args =
-      OptTbl.ParseArgs(Argv, MissingArgIndex, MissingArgCount, VisibilityMask);
-
-  // Check for missing argument error.
-  if (MissingArgCount) {
-    Diags.Report(diag::err_drv_missing_argument)
-        << Args.getArgString(MissingArgIndex) << MissingArgCount;
-    Success = false;
-  }
-
-  // Issue errors on unknown arguments.
-  for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
-    auto ArgString = A->getAsString(Args);
-    std::string Nearest;
-    if (OptTbl.findNearest(ArgString, Nearest, VisibilityMask) > 1)
-      Diags.Report(diag::err_drv_unknown_argument) << ArgString;
-    else
-      Diags.Report(diag::err_drv_unknown_argument_with_suggestion)
-          << ArgString << Nearest;
-    Success = false;
-  }
-
-  // Construct the invocation.
-
-  // Target Options
-  Opts.Triple = llvm::Triple(llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)));
-  if (Arg *A = Args.getLastArg(options::OPT_darwin_target_variant_triple))
-    Opts.DarwinTargetVariantTriple = llvm::Triple(A->getValue());
-  if (Arg *A = Args.getLastArg(OPT_darwin_target_variant_sdk_version_EQ)) {
-    VersionTuple Version;
-    if (Version.tryParse(A->getValue()))
-      Diags.Report(diag::err_drv_invalid_value)
-          << A->getAsString(Args) << A->getValue();
-    else
-      Opts.DarwinTargetVariantSDKVersion = Version;
-  }
-
-  Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu));
-  Opts.Features = Args.getAllArgValues(OPT_target_feature);
-
-  // Use the default target triple if unspecified.
-  if (Opts.Triple.getTriple().empty())
-    Opts.Triple = llvm::Triple(llvm::sys::getDefaultTargetTriple());
-
-  // Language Options
-  Opts.IncludePaths = Args.getAllArgValues(OPT_I);
-  Opts.NoInitialTextSection = Args.hasArg(OPT_n);
-  Opts.SaveTemporaryLabels = Args.hasArg(OPT_msave_temp_labels);
-  // Any DebugInfoKind implies GenDwarfForAssembly.
-  Opts.GenDwarfForAssembly = Args.hasArg(OPT_debug_info_kind_EQ);
-
-  if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections_EQ)) {
-    Opts.CompressDebugSections =
-        llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue())
-            .Case("none", llvm::DebugCompressionType::None)
-            .Case("zlib", llvm::DebugCompressionType::Zlib)
-            .Case("zstd", llvm::DebugCompressionType::Zstd)
-            .Default(llvm::DebugCompressionType::None);
-  }
-
-  if (auto *DwarfFormatArg = Args.getLastArg(OPT_gdwarf64, OPT_gdwarf32))
-    Opts.Dwarf64 = DwarfFormatArg->getOption().matches(OPT_gdwarf64);
-  Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 2, Diags);
-  Opts.DwarfDebugFlags =
-      std::string(Args.getLastArgValue(OPT_dwarf_debug_flags));
-  Opts.DwarfDebugProducer =
-      std::string(Args.getLastArgValue(OPT_dwarf_debug_producer));
-  if (const Arg *A = Args.getLastArg(options::OPT_ffile_compilation_dir_EQ,
-                                     options::OPT_fdebug_compilation_dir_EQ))
-    Opts.DebugCompilationDir = A->getValue();
-  Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name));
-
-  for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) {
-    auto Split = StringRef(Arg).split('=');
-    Opts.DebugPrefixMap.emplace_back(Split.first, Split.second);
-  }
-
-  // Frontend Options
-  if (Args.hasArg(OPT_INPUT)) {
-    bool First = true;
-    for (const Arg *A : Args.filtered(OPT_INPUT)) {
-      if (First) {
-        Opts.InputFile = A->getValue();
-        First = false;
-      } else {
-        Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
-        Success = false;
-      }
-    }
-  }
-  Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
-  Opts.OutputPath = std::string(Args.getLastArgValue(OPT_o));
-  Opts.SplitDwarfOutput =
-      std::string(Args.getLastArgValue(OPT_split_dwarf_output));
-  if (Arg *A = Args.getLastArg(OPT_filetype)) {
-    StringRef Name = A->getValue();
-    unsigned OutputType = StringSwitch<unsigned>(Name)
-      .Case("asm", FT_Asm)
-      .Case("null", FT_Null)
-      .Case("obj", FT_Obj)
-      .Default(~0U);
-    if (OutputType == ~0U) {
-      Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
-      Success = false;
-    } else
-      Opts.OutputType = FileType(OutputType);
-  }
-  Opts.ShowHelp = Args.hasArg(OPT_help);
-  Opts.ShowVersion = Args.hasArg(OPT_version);
-
-  // Transliterate Options
-  Opts.OutputAsmVariant =
-      getLastArgIntValue(Args, OPT_output_asm_variant, 0, Diags);
-  Opts.ShowEncoding = Args.hasArg(OPT_show_encoding);
-  Opts.ShowInst = Args.hasArg(OPT_show_inst);
-
-  // Assemble Options
-  Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
-  Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
-  Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
-  Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn);
-  Opts.NoTypeCheck = Args.hasArg(OPT_mno_type_check);
-  Opts.RelocationModel =
-      std::string(Args.getLastArgValue(OPT_mrelocation_model, "pic"));
-  Opts.TargetABI = std::string(Args.getLastArgValue(OPT_target_abi));
-  Opts.IncrementalLinkerCompatible =
-      Args.hasArg(OPT_mincremental_linker_compatible);
-  Opts.SymbolDefs = Args.getAllArgValues(OPT_defsym);
-
-  // EmbedBitcode Option. If -fembed-bitcode is enabled, set the flag.
-  // EmbedBitcode behaves the same for all embed options for assembly files.
-  if (auto *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
-    Opts.EmbedBitcode = llvm::StringSwitch<unsigned>(A->getValue())
-                            .Case("all", 1)
-                            .Case("bitcode", 1)
-                            .Case("marker", 1)
-                            .Default(0);
-  }
-
-  if (auto *A = Args.getLastArg(OPT_femit_dwarf_unwind_EQ)) {
-    Opts.EmitDwarfUnwind =
-        llvm::StringSwitch<EmitDwarfUnwindType>(A->getValue())
-            .Case("always", EmitDwarfUnwindType::Always)
-            .Case("no-compact-unwind", EmitDwarfUnwindType::NoCompactUnwind)
-            .Case("default", EmitDwarfUnwindType::Default);
-  }
-
-  Opts.EmitCompactUnwindNonCanonical =
-      Args.hasArg(OPT_femit_compact_unwind_non_canonical);
-  Opts.Crel = Args.hasArg(OPT_crel);
-  Opts.ImplicitMapsyms = Args.hasArg(OPT_mmapsyms_implicit);
-  Opts.X86RelaxRelocations = !Args.hasArg(OPT_mrelax_relocations_no);
-  Opts.X86Sse2Avx = Args.hasArg(OPT_msse2avx);
-
-  Opts.AsSecureLogFile = Args.getLastArgValue(OPT_as_secure_log_file);
-
-  return Success;
-}
-
-static std::unique_ptr<raw_fd_ostream>
-getOutputStream(StringRef Path, DiagnosticsEngine &Diags, bool Binary) {
-  // Make sure that the Out file gets unlinked from the disk if we get a
-  // SIGINT.
-  if (Path != "-")
-    sys::RemoveFileOnSignal(Path);
-
-  std::error_code EC;
-  auto Out = std::make_unique<raw_fd_ostream>(
-      Path, EC, (Binary ? sys::fs::OF_None : sys::fs::OF_TextWithCRLF));
-  if (EC) {
-    Diags.Report(diag::err_fe_unable_to_open_output) << Path << EC.message();
-    return nullptr;
-  }
-
-  return Out;
-}
-
-static bool ExecuteAssemblerImpl(AssemblerInvocation &Opts,
-                                 DiagnosticsEngine &Diags) {
-  // Get the target specific parser.
-  std::string Error;
-  const Target *TheTarget = TargetRegistry::lookupTarget(Opts.Triple, Error);
-  if (!TheTarget)
-    return Diags.Report(diag::err_target_unknown_triple) << Opts.Triple.str();
-
-  ErrorOr<std::unique_ptr<MemoryBuffer>> Buffer =
-      MemoryBuffer::getFileOrSTDIN(Opts.InputFile, /*IsText=*/true);
-
-  if (std::error_code EC = Buffer.getError()) {
-    return Diags.Report(diag::err_fe_error_reading)
-           << Opts.InputFile << EC.message();
-  }
-
-  SourceMgr SrcMgr;
-
-  // Tell SrcMgr about this buffer, which is what the parser will pick up.
-  unsigned BufferIndex = SrcMgr.AddNewSourceBuffer(std::move(*Buffer), SMLoc());
-
-  // Record the location of the include directories so that the lexer can find
-  // it later.
-  SrcMgr.setIncludeDirs(Opts.IncludePaths);
-
-  std::unique_ptr<MCRegisterInfo> MRI(TheTarget->createMCRegInfo(Opts.Triple));
-  assert(MRI && "Unable to create target register info!");
-
-  MCTargetOptions MCOptions;
-  MCOptions.MCRelaxAll = Opts.RelaxAll;
-  MCOptions.EmitDwarfUnwind = Opts.EmitDwarfUnwind;
-  MCOptions.EmitCompactUnwindNonCanonical = Opts.EmitCompactUnwindNonCanonical;
-  MCOptions.MCSaveTempLabels = Opts.SaveTemporaryLabels;
-  MCOptions.Crel = Opts.Crel;
-  MCOptions.ImplicitMapSyms = Opts.ImplicitMapsyms;
-  MCOptions.X86RelaxRelocations = Opts.X86RelaxRelocations;
-  MCOptions.X86Sse2Avx = Opts.X86Sse2Avx;
-  MCOptions.CompressDebugSections = Opts.CompressDebugSections;
-  MCOptions.AsSecureLogFile = Opts.AsSecureLogFile;
-
-  std::unique_ptr<MCAsmInfo> MAI(
-      TheTarget->createMCAsmInfo(*MRI, Opts.Triple, MCOptions));
-  assert(MAI && "Unable to create target asm info!");
-
-  // Ensure MCAsmInfo initialization occurs before any use, otherwise sections
-  // may be created with a combination of default and explicit settings.
-
-
-  bool IsBinary = Opts.OutputType == AssemblerInvocation::FT_Obj;
-  if (Opts.OutputPath.empty())
-    Opts.OutputPath = "-";
-  std::unique_ptr<raw_fd_ostream> FDOS =
-      getOutputStream(Opts.OutputPath, Diags, IsBinary);
-  if (!FDOS)
-    return true;
-  std::unique_ptr<raw_fd_ostream> DwoOS;
-  if (!Opts.SplitDwarfOutput.empty())
-    DwoOS = getOutputStream(Opts.SplitDwarfOutput, Diags, IsBinary);
-
-  // Build up the feature string from the target feature list.
-  std::string FS = llvm::join(Opts.Features, ",");
-
-  std::unique_ptr<MCSubtargetInfo> STI(
-      TheTarget->createMCSubtargetInfo(Opts.Triple, Opts.CPU, FS));
-  assert(STI && "Unable to create subtarget info!");
-
-  MCContext Ctx(Opts.Triple, MAI.get(), MRI.get(), STI.get(), &SrcMgr,
-                &MCOptions);
-
-  bool PIC = false;
-  if (Opts.RelocationModel == "static") {
-    PIC = false;
-  } else if (Opts.RelocationModel == "pic") {
-    PIC = true;
-  } else {
-    assert(Opts.RelocationModel == "dynamic-no-pic" &&
-           "Invalid PIC model!");
-    PIC = false;
-  }
-
-  // FIXME: This is not pretty. MCContext has a ptr to MCObjectFileInfo and
-  // MCObjectFileInfo needs a MCContext reference in order to initialize itself.
-  std::unique_ptr<MCObjectFileInfo> MOFI(
-      TheTarget->createMCObjectFileInfo(Ctx, PIC));
-  Ctx.setObjectFileInfo(MOFI.get());
-
-  if (Opts.GenDwarfForAssembly)
-    Ctx.setGenDwarfForAssembly(true);
-  if (!Opts.DwarfDebugFlags.empty())
-    Ctx.setDwarfDebugFlags(StringRef(Opts.DwarfDebugFlags));
-  if (!Opts.DwarfDebugProducer.empty())
-    Ctx.setDwarfDebugProducer(StringRef(Opts.DwarfDebugProducer));
-  if (!Opts.DebugCompilationDir.empty())
-    Ctx.setCompilationDir(Opts.DebugCompilationDir);
-  else {
-    // If no compilation dir is set, try to use the current directory.
-    SmallString<128> CWD;
-    if (!sys::fs::current_path(CWD))
-      Ctx.setCompilationDir(CWD);
-  }
-  if (!Opts.DebugPrefixMap.empty())
-    for (const auto &KV : Opts.DebugPrefixMap)
-      Ctx.addDebugPrefixMapEntry(KV.first, KV.second);
-  if (!Opts.MainFileName.empty())
-    Ctx.setMainFileName(StringRef(Opts.MainFileName));
-  Ctx.setDwarfFormat(Opts.Dwarf64 ? dwarf::DWARF64 : dwarf::DWARF32);
-  Ctx.setDwarfVersion(Opts.DwarfVersion);
-  if (Opts.GenDwarfForAssembly)
-    Ctx.setGenDwarfRootFile(Opts.InputFile,
-                            SrcMgr.getMemoryBuffer(BufferIndex)->getBuffer());
-
-  std::unique_ptr<MCStreamer> Str;
-
-  std::unique_ptr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());
-  assert(MCII && "Unable to create instruction info!");
-
-  raw_pwrite_stream *Out = FDOS.get();
-  std::unique_ptr<buffer_ostream> BOS;
-
-  MCOptions.MCNoWarn = Opts.NoWarn;
-  MCOptions.MCFatalWarnings = Opts.FatalWarnings;
-  MCOptions.MCNoTypeCheck = Opts.NoTypeCheck;
-  MCOptions.ShowMCInst = Opts.ShowInst;
-  MCOptions.AsmVerbose = true;
-  MCOptions.MCUseDwarfDirectory = MCTargetOptions::EnableDwarfDirectory;
-  MCOptions.ABIName = Opts.TargetABI;
-
-  // FIXME: There is a bit of code duplication with addPassesToEmitFile.
-  if (Opts.OutputType == AssemblerInvocation::FT_Asm) {
-    std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
-        Opts.Triple, Opts.OutputAsmVariant, *MAI, *MCII, *MRI));
-
-    std::unique_ptr<MCCodeEmitter> CE;
-    if (Opts.ShowEncoding)
-      CE.reset(TheTarget->createMCCodeEmitter(*MCII, Ctx));
-    std::unique_ptr<MCAsmBackend> MAB(
-        TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions));
-
-    auto FOut = std::make_unique<formatted_raw_ostream>(*Out);
-    Str.reset(TheTarget->createAsmStreamer(Ctx, std::move(FOut), std::move(IP),
-                                           std::move(CE), std::move(MAB)));
-  } else if (Opts.OutputType == AssemblerInvocation::FT_Null) {
-    Str.reset(createNullStreamer(Ctx));
-  } else {
-    assert(Opts.OutputType == AssemblerInvocation::FT_Obj &&
-           "Invalid file type!");
-    if (!FDOS->supportsSeeking()) {
-      BOS = std::make_unique<buffer_ostream>(*FDOS);
-      Out = BOS.get();
-    }
-
-    std::unique_ptr<MCCodeEmitter> CE(
-        TheTarget->createMCCodeEmitter(*MCII, Ctx));
-    std::unique_ptr<MCAsmBackend> MAB(
-        TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions));
-    assert(MAB && "Unable to create asm backend!");
-
-    std::unique_ptr<MCObjectWriter> OW =
-        DwoOS ? MAB->createDwoObjectWriter(*Out, *DwoOS)
-              : MAB->createObjectWriter(*Out);
-
-    Triple T = Opts.Triple;
-    Str.reset(TheTarget->createMCObjectStreamer(
-        T, Ctx, std::move(MAB), std::move(OW), std::move(CE), *STI));
-    Str.get()->initSections(Opts.NoExecStack, *STI);
-    if (T.isOSBinFormatMachO() && T.isOSDarwin()) {
-      Triple *TVT = Opts.DarwinTargetVariantTriple
-                        ? &*Opts.DarwinTargetVariantTriple
-                        : nullptr;
-      Str->emitVersionForTarget(T, VersionTuple(), TVT,
-                                Opts.DarwinTargetVariantSDKVersion);
-    }
-  }
-
-  // When -fembed-bitcode is passed to clang_as, a 1-byte marker
-  // is emitted in __LLVM,__asm section if the object file is MachO format.
-  if (Opts.EmbedBitcode && Ctx.getObjectFileType() == MCContext::IsMachO) {
-    MCSection *AsmLabel = Ctx.getMachOSection(
-        "__LLVM", "__asm", MachO::S_REGULAR, 4, SectionKind::getReadOnly());
-    Str.get()->switchSection(AsmLabel);
-    Str.get()->emitZeros(1);
-  }
-
-  bool Failed = false;
-
-  std::unique_ptr<MCAsmParser> Parser(
-      createMCAsmParser(SrcMgr, Ctx, *Str.get(), *MAI));
-
-  // FIXME: init MCTargetOptions from sanitizer flags here.
-  std::unique_ptr<MCTargetAsmParser> TAP(
-      TheTarget->createMCAsmParser(*STI, *Parser, *MCII, MCOptions));
-  if (!TAP)
-    Failed = Diags.Report(diag::err_target_unknown_triple) << Opts.Triple.str();
-
-  // Set values for symbols, if any.
-  for (auto &S : Opts.SymbolDefs) {
-    auto Pair = StringRef(S).split('=');
-    auto Sym = Pair.first;
-    auto Val = Pair.second;
-    int64_t Value;
-    // We have already error checked this in the driver.
-    Val.getAsInteger(0, Value);
-    Ctx.setSymbolValue(Parser->getStreamer(), Sym, Value);
-  }
-
-  if (!Failed) {
-    Parser->setTargetParser(*TAP.get());
-    Failed = Parser->Run(Opts.NoInitialTextSection);
-  }
-
-  return Failed;
-}
-
-bool ExecuteAssembler(AssemblerInvocation &Opts,
-                             DiagnosticsEngine &Diags) {
-  bool Failed = ExecuteAssemblerImpl(Opts, Diags);
-
-  // Delete output file if there were errors.
-  if (Failed) {
-    if (Opts.OutputPath != "-")
-      sys::fs::remove(Opts.OutputPath);
-    if (!Opts.SplitDwarfOutput.empty() && Opts.SplitDwarfOutput != "-")
-      sys::fs::remove(Opts.SplitDwarfOutput);
-  }
-
-  return Failed;
-}
-
-static void LLVMErrorHandler(void *UserData, const char *Message,
-                             bool GenCrashDiag) {
-  DiagnosticsEngine &Diags = *static_cast<DiagnosticsEngine*>(UserData);
-
-  Diags.Report(diag::err_fe_error_backend) << Message;
-
-  // We cannot recover from llvm errors.
-  sys::Process::Exit(1);
-}
-
-int cc1as_main(ArrayRef<const char *> Argv, const char *Argv0, void *MainAddr) {
-  // Initialize targets and assembly printers/parsers.
-  InitializeAllTargetInfos();
-  InitializeAllTargetMCs();
-  InitializeAllAsmParsers();
-
-  // Construct our diagnostic client.
-  DiagnosticOptions DiagOpts;
-  TextDiagnosticPrinter *DiagClient
-    = new TextDiagnosticPrinter(errs(), DiagOpts);
-  DiagClient->setPrefix("clang -cc1as");
-  IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
-  DiagnosticsEngine Diags(DiagID, DiagOpts, DiagClient);
-
-  // Set an error handler, so that any LLVM backend diagnostics go through our
-  // error handler.
-  ScopedFatalErrorHandler FatalErrorHandler
-    (LLVMErrorHandler, static_cast<void*>(&Diags));
-
-  // Parse the arguments.
-  AssemblerInvocation Asm;
-  if (!AssemblerInvocation::CreateFromArgs(Asm, Argv, Diags))
-    return 1;
-
-  if (Asm.ShowHelp) {
-    getDriverOptTable().printHelp(
-        llvm::outs(), "clang -cc1as [options] file...",
-        "Clang Integrated Assembler", /*ShowHidden=*/false,
-        /*ShowAllAliases=*/false,
-        llvm::opt::Visibility(clang::options::CC1AsOption));
-
-    return 0;
-  }
-
-  // Honor -version.
-  //
-  // FIXME: Use a better -version message?
-  if (Asm.ShowVersion) {
-    llvm::cl::PrintVersionMessage();
-    return 0;
-  }
-
-  // Honor -mllvm.
-  //
-  // FIXME: Remove this, one day.
-  if (!Asm.LLVMArgs.empty()) {
-    unsigned NumArgs = Asm.LLVMArgs.size();
-    auto Args = std::make_unique<const char*[]>(NumArgs + 2);
-    Args[0] = "clang (LLVM option parsing)";
-    for (unsigned i = 0; i != NumArgs; ++i)
-      Args[i + 1] = Asm.LLVMArgs[i].c_str();
-    Args[NumArgs + 1] = nullptr;
-    llvm::cl::ParseCommandLineOptions(NumArgs + 1, Args.get());
-  }
-
-  // Execute the invocation, unless there were parsing errors.
-  bool Failed = Diags.hasErrorOccurred() || ExecuteAssembler(Asm, Diags);
-
-  // If any timers were active but haven't been destroyed yet, print their
-  // results now.
-  TimerGroup::printAll(errs());
-  TimerGroup::clearAll();
-
-  return !!Failed;
-}

builder/cc1as.h

@@ -1,175 +0,0 @@
-// Source: https://github.com/llvm/llvm-project/blob/main/clang/tools/driver/cc1as_main.cpp
-// See cc1as.cpp for details.
-
-//===-- cc1as.h - Clang Assembler  ----------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This is the entry point to the clang -cc1as functionality, which implements
-// the direct interface to the LLVM MC based assembler.
-//
-//===----------------------------------------------------------------------===//
-
-/// Helper class for representing a single invocation of the assembler.
-struct AssemblerInvocation {
-  /// @name Target Options
-  /// @{
-
-  /// The name of the target triple to assemble for.
-  llvm::Triple Triple;
-
-  /// If given, the name of the target CPU to determine which instructions
-  /// are legal.
-  std::string CPU;
-
-  /// The list of target specific features to enable or disable -- this should
-  /// be a list of strings starting with '+' or '-'.
-  std::vector<std::string> Features;
-
-  /// The list of symbol definitions.
-  std::vector<std::string> SymbolDefs;
-
-  /// @}
-  /// @name Language Options
-  /// @{
-
-  std::vector<std::string> IncludePaths;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned NoInitialTextSection : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned SaveTemporaryLabels : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned GenDwarfForAssembly : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned Dwarf64 : 1;
-  unsigned DwarfVersion;
-  std::string DwarfDebugFlags;
-  std::string DwarfDebugProducer;
-  std::string DebugCompilationDir;
-  llvm::SmallVector<std::pair<std::string, std::string>, 0> DebugPrefixMap;
-  llvm::DebugCompressionType CompressDebugSections =
-      llvm::DebugCompressionType::None;
-  std::string MainFileName;
-  std::string SplitDwarfOutput;
-
-  /// @}
-  /// @name Frontend Options
-  /// @{
-
-  std::string InputFile;
-  std::vector<std::string> LLVMArgs;
-  std::string OutputPath;
-  enum FileType {
-    FT_Asm,  ///< Assembly (.s) output, transliterate mode.
-    FT_Null, ///< No output, for timing purposes.
-    FT_Obj   ///< Object file output.
-  };
-  FileType OutputType;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned ShowHelp : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned ShowVersion : 1;
-
-  /// @}
-  /// @name Transliterate Options
-  /// @{
-
-  unsigned OutputAsmVariant;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned ShowEncoding : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned ShowInst : 1;
-
-  /// @}
-  /// @name Assembler Options
-  /// @{
-
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned RelaxAll : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned NoExecStack : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned FatalWarnings : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned NoWarn : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned NoTypeCheck : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned IncrementalLinkerCompatible : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned EmbedBitcode : 1;
-
-  /// Whether to emit DWARF unwind info.
-  EmitDwarfUnwindType EmitDwarfUnwind;
-
-  // Whether to emit compact-unwind for non-canonical entries.
-  // Note: maybe overridden by other constraints.
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned EmitCompactUnwindNonCanonical : 1;
-
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned Crel : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned ImplicitMapsyms : 1;
-
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned X86RelaxRelocations : 1;
-  LLVM_PREFERRED_TYPE(bool)
-  unsigned X86Sse2Avx : 1;
-
-  /// The name of the relocation model to use.
-  std::string RelocationModel;
-
-  /// The ABI targeted by the backend. Specified using -target-abi. Empty
-  /// otherwise.
-  std::string TargetABI;
-
-  /// Darwin target variant triple, the variant of the deployment target
-  /// for which the code is being compiled.
-  std::optional<llvm::Triple> DarwinTargetVariantTriple;
-
-  /// The version of the darwin target variant SDK which was used during the
-  /// compilation
-  llvm::VersionTuple DarwinTargetVariantSDKVersion;
-
-  /// The name of a file to use with \c .secure_log_unique directives.
-  std::string AsSecureLogFile;
-  /// @}
-
-public:
-  AssemblerInvocation() {
-    Triple = llvm::Triple();
-    NoInitialTextSection = 0;
-    InputFile = "-";
-    OutputPath = "-";
-    OutputType = FT_Asm;
-    OutputAsmVariant = 0;
-    ShowInst = 0;
-    ShowEncoding = 0;
-    RelaxAll = 0;
-    NoExecStack = 0;
-    FatalWarnings = 0;
-    NoWarn = 0;
-    NoTypeCheck = 0;
-    IncrementalLinkerCompatible = 0;
-    Dwarf64 = 0;
-    DwarfVersion = 0;
-    EmbedBitcode = 0;
-    EmitDwarfUnwind = EmitDwarfUnwindType::Default;
-    EmitCompactUnwindNonCanonical = false;
-    Crel = false;
-    ImplicitMapsyms = 0;
-    X86RelaxRelocations = 0;
-    X86Sse2Avx = 0;
-  }
-
-  static bool CreateFromArgs(AssemblerInvocation &Res,
-                             ArrayRef<const char *> Argv,
-                             DiagnosticsEngine &Diags);
-};
-
-bool ExecuteAssembler(AssemblerInvocation &Opts, DiagnosticsEngine &Diags);

builder/cc_test.go

@@ -1,33 +0,0 @@
-package builder
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestSplitDepFile(t *testing.T) {
-	for i, tc := range []struct {
-		in  string
-		out []string
-	}{
-		{`deps: foo bar`, []string{"foo", "bar"}},
-		{`deps: foo "bar"`, []string{"foo", "bar"}},
-		{`deps: "foo" bar`, []string{"foo", "bar"}},
-		{`deps: "foo bar"`, []string{"foo bar"}},
-		{`deps: "foo bar" `, []string{"foo bar"}},
-		{"deps: foo\nbar", []string{"foo"}},
-		{"deps: foo \\\nbar", []string{"foo", "bar"}},
-		{"deps: foo\\bar \\\nbaz", []string{"foo\\bar", "baz"}},
-		{"deps: foo\\bar \\\r\n baz", []string{"foo\\bar", "baz"}}, // Windows uses CRLF line endings
-	} {
-		out, err := parseDepFile(tc.in)
-		if err != nil {
-			t.Errorf("test #%d failed: %v", i, err)
-			continue
-		}
-		if !reflect.DeepEqual(out, tc.out) {
-			t.Errorf("test #%d failed: expected %#v but got %#v", i, tc.out, out)
-			continue
-		}
-	}
-}

builder/clang.cpp

@@ -1,98 +0,0 @@
-//go:build byollvm
-
-#include <clang/Basic/DiagnosticOptions.h>
-#include <clang/CodeGen/CodeGenAction.h>
-#include <clang/Driver/Compilation.h>
-#include <clang/Driver/Driver.h>
-#include <clang/Frontend/CompilerInstance.h>
-#include <clang/Frontend/CompilerInvocation.h>
-#include <clang/Frontend/FrontendDiagnostic.h>
-#include <clang/Frontend/TextDiagnosticPrinter.h>
-#include <clang/FrontendTool/Utils.h>
-#include <llvm/ADT/IntrusiveRefCntPtr.h>
-#include <llvm/Option/Option.h>
-#include <llvm/TargetParser/Host.h>
-
-using namespace llvm;
-using namespace clang;
-
-#include "cc1as.h"
-
-// This file provides C wrappers for the builtin tools cc1 and cc1as
-// provided by Clang, and calls them as the driver would call them.
-
-extern "C" {
-
-bool tinygo_clang_driver(int argc, char **argv) {
-	std::vector<const char*> args(argv, argv + argc);
-
-	// The compiler invocation needs a DiagnosticsEngine so it can report problems
-	clang::DiagnosticOptions DiagOpts;
-	clang::TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), DiagOpts);
-	clang::DiagnosticsEngine Diags(llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs>(new clang::DiagnosticIDs()), DiagOpts, &DiagnosticPrinter, false);
-
-	// Create the clang driver
-	clang::driver::Driver TheDriver(args[0], llvm::sys::getDefaultTargetTriple(), Diags);
-
-	// Create the set of actions to perform
-	std::unique_ptr<clang::driver::Compilation> C(TheDriver.BuildCompilation(args));
-	if (!C) {
-		return false;
-	}
-	const clang::driver::JobList &Jobs = C->getJobs();
-
-	// There may be more than one job, for example for .S files
-	// (preprocessor + assembler).
-	for (auto Cmd : Jobs) {
-		// Select the tool: cc1 or cc1as.
-		const llvm::opt::ArgStringList &CCArgs = Cmd.getArguments();
-
-		if (strcmp(*CCArgs.data(), "-cc1") == 0) {
-			// This is the C frontend.
-			// Initialize a compiler invocation object from the clang (-cc1) arguments.
-			std::unique_ptr<clang::CompilerInstance> Clang(new clang::CompilerInstance());
-			bool success = clang::CompilerInvocation::CreateFromArgs(
-					Clang->getInvocation(),
-					CCArgs,
-					Diags);
-			if (!success) {
-				return false;
-			}
-
-			// Create the actual diagnostics engine.
-			Clang->createDiagnostics();
-			if (!Clang->hasDiagnostics()) {
-				return false;
-			}
-
-			// Execute the frontend actions.
-			success = ExecuteCompilerInvocation(Clang.get());
-			if (!success) {
-				return false;
-			}
-
-		} else if (strcmp(*CCArgs.data(), "-cc1as") == 0) {
-			// This is the assembler frontend. Parse the arguments.
-			AssemblerInvocation Asm;
-			ArrayRef<const char *> Argv = llvm::ArrayRef<const char*>(CCArgs);
-			if (!AssemblerInvocation::CreateFromArgs(Asm, Argv.slice(1), Diags))
-				return false;
-
-			// Execute the invocation, unless there were parsing errors.
-			bool failed = Diags.hasErrorOccurred() || ExecuteAssembler(Asm, Diags);
-			if (failed) {
-				return false;
-			}
-
-		} else {
-			// Unknown tool, print the tool and exit.
-			fprintf(stderr, "unknown tool: %s\n", *CCArgs.data());
-			return false;
-		}
-	}
-
-	// Commands executed successfully.
-	return true;
-}
-
-} // extern "C"

builder/commands.go

@@ -1,77 +0,0 @@
-package builder
-
-import (
-	"errors"
-	"fmt"
-	"os/exec"
-	"runtime"
-	"strings"
-
-	"tinygo.org/x/go-llvm"
-)
-
-// Commands lists command alternatives for various operating systems. These
-// commands may have a slightly different name across operating systems and
-// distributions or may not even exist in $PATH, in which case absolute paths
-// may be used.
-var commands = map[string][]string{}
-
-func init() {
-	llvmMajor, _, _ := strings.Cut(llvm.Version, ".")
-	commands["clang"] = []string{"clang-" + llvmMajor}
-	commands["ld.lld"] = []string{"ld.lld-" + llvmMajor, "ld.lld"}
-	commands["wasm-ld"] = []string{"wasm-ld-" + llvmMajor, "wasm-ld"}
-	commands["lldb"] = []string{"lldb-" + llvmMajor, "lldb"}
-	// Add the path to a Homebrew-installed LLVM for ease of use (no need to
-	// manually set $PATH).
-	if runtime.GOOS == "darwin" {
-		var prefix string
-		switch runtime.GOARCH {
-		case "amd64":
-			prefix = "/usr/local/opt/llvm@" + llvmMajor + "/bin/"
-		case "arm64":
-			prefix = "/opt/homebrew/opt/llvm@" + llvmMajor + "/bin/"
-		default:
-			// unknown GOARCH
-			panic(fmt.Sprintf("unknown GOARCH: %s on darwin", runtime.GOARCH))
-		}
-		commands["clang"] = append(commands["clang"], prefix+"clang-"+llvmMajor)
-		commands["ld.lld"] = append(commands["ld.lld"], prefix+"ld.lld")
-		commands["wasm-ld"] = append(commands["wasm-ld"], prefix+"wasm-ld")
-		commands["lldb"] = append(commands["lldb"], prefix+"lldb")
-	}
-	// Add the path for when LLVM was installed with the installer from
-	// llvm.org, which by default doesn't add LLVM to the $PATH environment
-	// variable.
-	if runtime.GOOS == "windows" {
-		commands["clang"] = append(commands["clang"], "clang", "C:\\Program Files\\LLVM\\bin\\clang.exe")
-		commands["ld.lld"] = append(commands["ld.lld"], "lld", "C:\\Program Files\\LLVM\\bin\\lld.exe")
-		commands["wasm-ld"] = append(commands["wasm-ld"], "C:\\Program Files\\LLVM\\bin\\wasm-ld.exe")
-		commands["lldb"] = append(commands["lldb"], "C:\\Program Files\\LLVM\\bin\\lldb.exe")
-	}
-	// Add the path to LLVM installed from ports.
-	if runtime.GOOS == "freebsd" {
-		prefix := "/usr/local/llvm" + llvmMajor + "/bin/"
-		commands["clang"] = append(commands["clang"], prefix+"clang-"+llvmMajor)
-		commands["ld.lld"] = append(commands["ld.lld"], prefix+"ld.lld")
-		commands["wasm-ld"] = append(commands["wasm-ld"], prefix+"wasm-ld")
-		commands["lldb"] = append(commands["lldb"], prefix+"lldb")
-	}
-}
-
-// LookupCommand looks up the executable name for a given LLVM tool such as
-// clang or wasm-ld. It returns the (relative) command that can be used to
-// invoke the tool or an error if it could not be found.
-func LookupCommand(name string) (string, error) {
-	for _, cmdName := range commands[name] {
-		_, err := exec.LookPath(cmdName)
-		if err != nil {
-			if errors.Unwrap(err) == exec.ErrNotFound {
-				continue
-			}
-			return cmdName, err
-		}
-		return cmdName, nil
-	}
-	return "", errors.New("none of these commands were found in your $PATH: " + strings.Join(commands[name], " "))
-}

builder/config.go

@@ -1,63 +0,0 @@
-package builder
-
-import (
-	"fmt"
-	"runtime"
-
-	"github.com/tinygo-org/tinygo/compileopts"
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-// NewConfig builds a new Config object from a set of compiler options. It also
-// loads some information from the environment while doing that. For example, it
-// uses the currently active GOPATH (from the goenv package) to determine the Go
-// version to use.
-func NewConfig(options *compileopts.Options) (*compileopts.Config, error) {
-	spec, err := compileopts.LoadTarget(options)
-	if err != nil {
-		return nil, err
-	}
-
-	if options.OpenOCDCommands != nil {
-		// Override the OpenOCDCommands from the target spec if specified on
-		// the command-line
-		spec.OpenOCDCommands = options.OpenOCDCommands
-	}
-
-	// Version range supported by TinyGo.
-	const minorMin = 25 // when updating the min version, also update .github/workflows/compat.yml
-	const minorMax = 27
-
-	// Check that we support this Go toolchain version.
-	gorootMajor, gorootMinor, err := goenv.GetGorootVersion()
-	if err != nil {
-		return nil, err
-	}
-
-	if options.GoCompatibility {
-		if gorootMajor != 1 || gorootMinor < minorMin || gorootMinor > minorMax {
-			// Note: when this gets updated, also update the Go compatibility matrix:
-			// https://github.com/tinygo-org/tinygo-site/blob/dev/content/docs/reference/go-compat-matrix.md
-			return nil, fmt.Errorf("requires go version 1.%d through 1.%d, got go%d.%d", minorMin, minorMax, gorootMajor, gorootMinor)
-		}
-	}
-
-	// Check that the Go toolchain version isn't too new, if we haven't been
-	// compiled with the latest Go version.
-	// This may be a bit too aggressive: if the newer version doesn't change the
-	// Go language we will most likely be able to compile it.
-	buildMajor, buildMinor, _, err := goenv.Parse(runtime.Version())
-	if err != nil {
-		return nil, err
-	}
-	if buildMajor != 1 || buildMinor < gorootMinor {
-		return nil, fmt.Errorf("cannot compile with Go toolchain version go%d.%d (TinyGo was built using toolchain version %s)", gorootMajor, gorootMinor, runtime.Version())
-	}
-
-	return &compileopts.Config{
-		Options:        options,
-		Target:         spec,
-		GoMinorVersion: gorootMinor,
-		TestConfig:     options.TestConfig,
-	}, nil
-}

builder/darwin-libsystem.go

@@ -1,58 +0,0 @@
-package builder
-
-import (
-	"path/filepath"
-	"strings"
-
-	"github.com/tinygo-org/tinygo/compileopts"
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-// Create a job that builds a Darwin libSystem.dylib stub library. This library
-// contains all the symbols needed so that we can link against it, but it
-// doesn't contain any real symbol implementations.
-func makeDarwinLibSystemJob(config *compileopts.Config, tmpdir string) *compileJob {
-	return &compileJob{
-		description: "compile Darwin libSystem.dylib",
-		run: func(job *compileJob) (err error) {
-			arch, _, _ := strings.Cut(config.Triple(), "-")
-			job.result = filepath.Join(tmpdir, "libSystem.dylib")
-			objpath := filepath.Join(tmpdir, "libSystem.o")
-			inpath := filepath.Join(goenv.Get("TINYGOROOT"), "lib/macos-minimal-sdk/src", arch, "libSystem.s")
-
-			// Compile assembly file to object file.
-			flags := []string{
-				"-nostdlib",
-				"--target=" + config.Triple(),
-				"-c",
-				"-o", objpath,
-				inpath,
-			}
-			if config.Options.PrintCommands != nil {
-				config.Options.PrintCommands("clang", flags...)
-			}
-			err = runCCompiler(flags...)
-			if err != nil {
-				return err
-			}
-
-			// Link object file to dynamic library.
-			platformVersion := strings.TrimPrefix(strings.Split(config.Triple(), "-")[2], "macosx")
-			flags = []string{
-				"-flavor", "darwin",
-				"-demangle",
-				"-dynamic",
-				"-dylib",
-				"-arch", arch,
-				"-platform_version", "macos", platformVersion, platformVersion,
-				"-install_name", "/usr/lib/libSystem.B.dylib",
-				"-o", job.result,
-				objpath,
-			}
-			if config.Options.PrintCommands != nil {
-				config.Options.PrintCommands("ld.lld", flags...)
-			}
-			return link("ld.lld", flags...)
-		},
-	}
-}

builder/elfpatch.go

@@ -1,57 +0,0 @@
-package builder
-
-import (
-	"debug/elf"
-	"fmt"
-	"os"
-)
-
-func getElfSectionData(executable string, sectionName string) ([]byte, elf.FileHeader, error) {
-	elfFile, err := elf.Open(executable)
-	if err != nil {
-		return nil, elf.FileHeader{}, err
-	}
-	defer elfFile.Close()
-
-	section := elfFile.Section(sectionName)
-	if section == nil {
-		return nil, elf.FileHeader{}, fmt.Errorf("could not find %s section", sectionName)
-	}
-
-	data, err := section.Data()
-
-	return data, elfFile.FileHeader, err
-}
-
-func replaceElfSection(executable string, sectionName string, data []byte) error {
-	fp, err := os.OpenFile(executable, os.O_RDWR, 0)
-	if err != nil {
-		return err
-	}
-	defer fp.Close()
-
-	elfFile, err := elf.Open(executable)
-	if err != nil {
-		return err
-	}
-	defer elfFile.Close()
-
-	section := elfFile.Section(sectionName)
-	if section == nil {
-		return fmt.Errorf("could not find %s section", sectionName)
-	}
-
-	// Implicitly check for compressed sections
-	if section.Size != section.FileSize {
-		return fmt.Errorf("expected section %s to have identical size and file size, got %d and %d", sectionName, section.Size, section.FileSize)
-	}
-
-	// Only permit complete replacement of section
-	if section.Size != uint64(len(data)) {
-		return fmt.Errorf("expected section %s to have size %d, was actually %d", sectionName, len(data), section.Size)
-	}
-
-	// Write the replacement section data
-	_, err = fp.WriteAt(data, int64(section.Offset))
-	return err
-}

builder/error.go

@@ -1,41 +0,0 @@
-package builder
-
-// MultiError is a list of multiple errors (actually: diagnostics) returned
-// during LLVM IR generation.
-type MultiError struct {
-	ImportPath string
-	Errs       []error
-}
-
-func (e *MultiError) Error() string {
-	// Return the first error, to conform to the error interface. Clients should
-	// really do a type-assertion on *MultiError.
-	return e.Errs[0].Error()
-}
-
-// newMultiError returns a *MultiError if there is more than one error, or
-// returns that error directly when there is only one. Passing an empty slice
-// will return nil (because there is no error).
-// The importPath may be passed if this error is for a single package.
-func newMultiError(errs []error, importPath string) error {
-	switch len(errs) {
-	case 0:
-		return nil
-	case 1:
-		return errs[0]
-	default:
-		return &MultiError{importPath, errs}
-	}
-}
-
-// commandError is an error type to wrap os/exec.Command errors. This provides
-// some more information regarding what went wrong while running a command.
-type commandError struct {
-	Msg  string
-	File string
-	Err  error
-}
-
-func (e *commandError) Error() string {
-	return e.Msg + " " + e.File + ": " + e.Err.Error()
-}

builder/esp.go

@@ -1,329 +0,0 @@
-package builder
-
-// This file implements support for writing ESP image files. These image files
-// are read by the ROM bootloader so have to be in a particular format.
-//
-// In the future, it may be necessary to implement support for other image
-// formats, such as the ESP8266 image formats (again, used by the ROM bootloader
-// to load the firmware).
-
-import (
-	"bytes"
-	"crypto/sha256"
-	"debug/elf"
-	"encoding/binary"
-	"fmt"
-	"os"
-	"sort"
-	"strings"
-)
-
-type espImageSegment struct {
-	addr uint32
-	data []byte
-}
-
-// makeESPFirmwareImage converts an input ELF file to an image file for an ESP32 or
-// ESP8266 chip. This is a special purpose image format just for the ESP chip
-// family, and is parsed by the on-chip mask ROM bootloader.
-//
-// The following documentation has been used:
-// https://github.com/espressif/esptool/wiki/Firmware-Image-Format
-// https://github.com/espressif/esp-idf/blob/8fbb63c2a701c22ccf4ce249f43aded73e134a34/components/bootloader_support/include/esp_image_format.h#L58
-// https://github.com/espressif/esptool/blob/master/esptool.py
-func makeESPFirmwareImage(infile, outfile, format string) error {
-	inf, err := elf.Open(infile)
-	if err != nil {
-		return err
-	}
-	defer inf.Close()
-
-	// Load all segments to be written to the image. These are actually ELF
-	// sections, not true ELF segments (similar to how esptool does it).
-	var segments []*espImageSegment
-	for _, section := range inf.Sections {
-		if section.Type != elf.SHT_PROGBITS || section.Size == 0 || section.Flags&elf.SHF_ALLOC == 0 {
-			continue
-		}
-		data, err := section.Data()
-		if err != nil {
-			return fmt.Errorf("failed to read section data: %w", err)
-		}
-		for len(data)%4 != 0 {
-			// Align segment to 4 bytes.
-			data = append(data, 0)
-		}
-		if uint64(uint32(section.Addr)) != section.Addr {
-			return fmt.Errorf("section address too big: 0x%x", section.Addr)
-		}
-		segments = append(segments, &espImageSegment{
-			addr: uint32(section.Addr),
-			data: data,
-		})
-	}
-
-	// Sort the segments by address. This is what esptool does too.
-	sort.SliceStable(segments, func(i, j int) bool { return segments[i].addr < segments[j].addr })
-
-	// Write first to an in-memory buffer, primarily so that we can easily
-	// calculate a hash over the entire image.
-	// An added benefit is that we don't need to check for errors all the time.
-	outf := &bytes.Buffer{}
-
-	// Separate esp32 and esp32-img. The -img suffix indicates we should make an
-	// image, not just a binary to be flashed at 0x1000 for example.
-	chip := format
-	makeImage := false
-	if strings.HasSuffix(format, "-img") {
-		makeImage = true
-		chip = format[:len(format)-len("-img")]
-	}
-
-	// For ESP32 (original): separate RAM segments (loadable by ROM bootloader)
-	// from flash-mapped segments (DROM/IROM, require MMU setup by startup code).
-	// The ROM bootloader on ESP32 does NOT handle flash-mapped segments —
-	// it tries to memcpy to the virtual address, which crashes.
-	var flashSegments []*espImageSegment
-	if chip == "esp32" {
-		var ramSegments []*espImageSegment
-		for _, seg := range segments {
-			if (seg.addr >= 0x3F400000 && seg.addr < 0x3F800000) || // DROM
-				(seg.addr >= 0x400D0000 && seg.addr < 0x40400000) { // IROM
-				flashSegments = append(flashSegments, seg)
-			} else {
-				ramSegments = append(ramSegments, seg)
-			}
-		}
-		segments = ramSegments
-	}
-
-	// ESP32 flash XIP: compute where the DROM segment will be placed in flash
-	// (page-aligned, right after the RAM segments) and patch the
-	// _drom_flash_addr variable so the startup code can program the cache MMU.
-	// This must happen before the checksum/hash are computed so the patched
-	// value is covered by both.
-	const esp32FlashBase = 0x1000 // esptool flashes the image at 0x1000
-	// The ESP32 flash cache MMU supports configurable page sizes down to 256 B. 64 KiB is the reset/default size.
-	// If the startup code ever changes the MMU page size, this constant must change too.
-	const esp32PageSize = 0x10000 // 64KB MMU pages
-	var esp32DromFlashAddr uint32
-	if chip == "esp32" && len(flashSegments) > 0 {
-		// Compute the size of the RAM portion of the image (everything the ROM
-		// bootloader loads, up to and including the appended SHA256 hash).
-		ramImageSize := 0
-		if makeImage {
-			ramImageSize += 4096
-		}
-		ramImageSize += 24 // image header (8) + trailer fields (16)
-		for _, seg := range segments {
-			ramImageSize += 8 + len(seg.data) // segment header + data (4-aligned)
-		}
-		ramImageSize += 16 - ramImageSize%16 // footer padding + checksum byte
-		ramImageSize += 32                   // appended SHA256 hash
-
-		// DROM flash address must be 64KB page-aligned.
-		esp32DromFlashAddr = uint32(esp32FlashBase+ramImageSize+esp32PageSize-1) &^ (esp32PageSize - 1)
-
-		// Patch _drom_flash_addr in whichever RAM segment contains it.
-		syms, _ := inf.Symbols()
-		var dromSymAddr uint64
-		for _, s := range syms {
-			if s.Name == "_drom_flash_addr" {
-				dromSymAddr = s.Value
-				break
-			}
-		}
-		if dromSymAddr == 0 {
-			return fmt.Errorf("ESP32: _drom_flash_addr symbol not found")
-		}
-		patched := false
-		for _, seg := range segments {
-			if dromSymAddr >= uint64(seg.addr) && dromSymAddr+4 <= uint64(seg.addr)+uint64(len(seg.data)) {
-				off := int(dromSymAddr - uint64(seg.addr))
-				binary.LittleEndian.PutUint32(seg.data[off:], esp32DromFlashAddr)
-				patched = true
-				break
-			}
-		}
-		if !patched {
-			return fmt.Errorf("ESP32: _drom_flash_addr (0x%x) not in any RAM segment", dromSymAddr)
-		}
-	}
-
-	// Calculate checksum over the segment data. This is used in the image
-	// footer.
-	checksum := uint8(0xef)
-	for _, segment := range segments {
-		for _, b := range segment.data {
-			checksum ^= b
-		}
-	}
-
-	if makeImage {
-		// The bootloader starts at 0x1000, or 4096.
-		// TinyGo doesn't use a separate bootloader and runs the entire
-		// application in the bootloader location.
-		outf.Write(make([]byte, 4096))
-	}
-
-	// Chip IDs. Source:
-	// https://github.com/espressif/esp-idf/blob/v4.3/components/bootloader_support/include/esp_app_format.h#L22
-	chip_id := map[string]uint16{
-		"esp32":   0x0000,
-		"esp32c3": 0x0005,
-		"esp32c6": 0x000d,
-		"esp32s3": 0x0009,
-	}[chip]
-
-	// SPI flash speed/size byte (byte 3 of header):
-	//   Upper nibble = flash size, lower nibble = flash frequency.
-	//   The espflasher auto-detects and patches the flash size (upper nibble),
-	//   but the frequency (lower nibble) must be correct per chip.
-	spiSpeedSize := map[string]uint8{
-		"esp32":   0x1f, // 80MHz=0x0F, 2MB=0x10
-		"esp32c3": 0x1f, // 80MHz=0x0F, 2MB=0x10
-		"esp32c6": 0x10, // 80MHz=0x00, 2MB=0x10 (C6 uses different freq encoding)
-		"esp32s3": 0x1f, // 80MHz=0x0F, 2MB=0x10
-	}[chip]
-
-	// Image header.
-	switch chip {
-	case "esp32", "esp32c3", "esp32s3", "esp32c6":
-		// Header format:
-		// https://github.com/espressif/esp-idf/blob/v4.3/components/bootloader_support/include/esp_app_format.h#L71
-		// Note: not adding a SHA256 hash as the binary is modified by
-		// esptool.py while flashing and therefore the hash won't be valid
-		// anymore.
-		binary.Write(outf, binary.LittleEndian, struct {
-			magic          uint8
-			segment_count  uint8
-			spi_mode       uint8
-			spi_speed_size uint8
-			entry_addr     uint32
-			wp_pin         uint8
-			spi_pin_drv    [3]uint8
-			chip_id        uint16
-			min_chip_rev   uint8
-			reserved       [8]uint8
-			hash_appended  bool
-		}{
-			magic:          0xE9,
-			segment_count:  byte(len(segments)),
-			spi_mode:       2, // ESP_IMAGE_SPI_MODE_DIO
-			spi_speed_size: spiSpeedSize,
-			entry_addr:     uint32(inf.Entry),
-			wp_pin:         0xEE, // disable WP pin
-			chip_id:        chip_id,
-			hash_appended:  true, // add a SHA256 hash
-		})
-	case "esp8266":
-		// Header format:
-		// https://github.com/espressif/esptool/wiki/Firmware-Image-Format
-		// Basically a truncated version of the ESP32 header.
-		binary.Write(outf, binary.LittleEndian, struct {
-			magic          uint8
-			segment_count  uint8
-			spi_mode       uint8
-			spi_speed_size uint8
-			entry_addr     uint32
-		}{
-			magic:          0xE9,
-			segment_count:  byte(len(segments)),
-			spi_mode:       0,    // irrelevant, replaced by esptool when flashing
-			spi_speed_size: 0x20, // spi_speed, spi_size: replaced by esptool when flashing
-			entry_addr:     uint32(inf.Entry),
-		})
-	default:
-		return fmt.Errorf("builder: unknown binary format %#v, expected esp32 or esp8266", format)
-	}
-
-	// Write all segments to the image.
-	// https://github.com/espressif/esptool/wiki/Firmware-Image-Format#segment
-	for _, segment := range segments {
-		binary.Write(outf, binary.LittleEndian, struct {
-			addr   uint32
-			length uint32
-		}{
-			addr:   segment.addr,
-			length: uint32(len(segment.data)),
-		})
-		outf.Write(segment.data)
-	}
-
-	// Footer, including checksum.
-	// The entire image size must be a multiple of 16, so pad the image to one
-	// byte less than that before writing the checksum.
-	outf.Write(make([]byte, 15-outf.Len()%16))
-	outf.WriteByte(checksum)
-
-	if chip != "esp8266" {
-		// SHA256 hash (to protect against image corruption, not for security).
-		hash := sha256.Sum256(outf.Bytes())
-		outf.Write(hash[:])
-	}
-
-	// For ESP32: append flash-mapped segments (DROM/IROM) at page-aligned flash
-	// offsets after the RAM portion. The startup code maps them via the flash
-	// cache MMU (DROM at esp32DromFlashAddr, patched into _drom_flash_addr).
-	if len(flashSegments) > 0 {
-		const flashBase = esp32FlashBase
-		const pageSize = esp32PageSize
-		dromFlashAddr := esp32DromFlashAddr
-
-		// Separate DROM and IROM segments.
-		var dromSegs, iromSegs []*espImageSegment
-		for _, seg := range flashSegments {
-			if seg.addr >= 0x3F400000 && seg.addr < 0x3F800000 {
-				dromSegs = append(dromSegs, seg)
-			} else {
-				iromSegs = append(iromSegs, seg)
-			}
-		}
-
-		// Write DROM segments at the computed page-aligned flash offset.
-		dromSize := 0
-		if len(dromSegs) > 0 {
-			targetImageOffset := int(dromFlashAddr - flashBase)
-			if outf.Len() > targetImageOffset {
-				return fmt.Errorf("ESP32: RAM segments too large (%d bytes), overlap DROM at flash 0x%x", outf.Len(), dromFlashAddr)
-			}
-			outf.Write(make([]byte, targetImageOffset-outf.Len()))
-			for _, seg := range dromSegs {
-				outf.Write(seg.data)
-				dromSize += len(seg.data)
-			}
-		}
-
-		// Write IROM segments immediately after DROM, at the next page boundary.
-		// IROM flash addr = dromFlashAddr + ceil(dromSize/pageSize)*pageSize
-		// (must match the computation in the startup assembly).
-		if len(iromSegs) > 0 {
-			dromPages := (dromSize + pageSize - 1) / pageSize
-			if dromPages == 0 {
-				dromPages = 1
-			}
-			iromFlashAddr := dromFlashAddr + uint32(dromPages)*pageSize
-			targetImageOffset := int(iromFlashAddr - flashBase)
-			if outf.Len() > targetImageOffset {
-				return fmt.Errorf("ESP32: DROM too large, overlaps IROM at flash 0x%x", iromFlashAddr)
-			}
-			outf.Write(make([]byte, targetImageOffset-outf.Len()))
-			for _, seg := range iromSegs {
-				outf.Write(seg.data)
-			}
-		}
-	}
-
-	// QEMU (or more precisely, qemu-system-xtensa from Espressif) expects the
-	// image to be a certain size.
-	if makeImage {
-		// Use a default image size of 4MB.
-		grow := 4096*1024 - outf.Len()
-		if grow > 0 {
-			outf.Write(make([]byte, grow))
-		}
-	}
-
-	// Write the image to the output file.
-	return os.WriteFile(outfile, outf.Bytes(), 0666)
-}

builder/jobs.go

@@ -1,219 +0,0 @@
-package builder
-
-// This file implements a job runner for the compiler, which runs jobs in
-// parallel while taking care of dependencies.
-
-import (
-	"container/heap"
-	"errors"
-	"fmt"
-	"runtime"
-	"sort"
-	"strings"
-	"time"
-)
-
-// Set to true to enable logging in the job runner. This may help to debug
-// concurrency or performance issues.
-const jobRunnerDebug = false
-
-// compileJob is a single compiler job, comparable to a single Makefile target.
-// It is used to orchestrate various compiler tasks that can be run in parallel
-// but that have dependencies and thus have limitations in how they can be run.
-type compileJob struct {
-	description  string // description, only used for logging
-	dependencies []*compileJob
-	result       string // result (path)
-	run          func(*compileJob) (err error)
-	err          error         // error if finished
-	duration     time.Duration // how long it took to run this job (only set after finishing)
-}
-
-// dummyCompileJob returns a new *compileJob that produces an output without
-// doing anything. This can be useful where a *compileJob producing an output is
-// expected but nothing needs to be done, for example for a load from a cache.
-func dummyCompileJob(result string) *compileJob {
-	return &compileJob{
-		description: "<dummy>",
-		result:      result,
-	}
-}
-
-// runJobs runs the indicated job and all its dependencies. For every job, all
-// the dependencies are run first. It returns the error of the first job that
-// fails.
-// It runs all jobs in the order of the dependencies slice, depth-first.
-// Therefore, if some jobs are preferred to run before others, they should be
-// ordered as such in the job dependencies.
-func runJobs(job *compileJob, sema chan struct{}) error {
-	if sema == nil {
-		// Have a default, if the semaphore isn't set. This is useful for tests.
-		sema = make(chan struct{}, runtime.NumCPU())
-	}
-	if cap(sema) == 0 {
-		return errors.New("cannot run 0 jobs at a time")
-	}
-
-	// Create a slice of jobs to run, where all dependencies are run in order.
-	jobs := []*compileJob{}
-	addedJobs := map[*compileJob]struct{}{}
-	var addJobs func(*compileJob)
-	addJobs = func(job *compileJob) {
-		if _, ok := addedJobs[job]; ok {
-			return
-		}
-		for _, dep := range job.dependencies {
-			addJobs(dep)
-		}
-		jobs = append(jobs, job)
-		addedJobs[job] = struct{}{}
-	}
-	addJobs(job)
-
-	waiting := make(map[*compileJob]map[*compileJob]struct{}, len(jobs))
-	dependents := make(map[*compileJob][]*compileJob, len(jobs))
-	compileJobs := make(map[*compileJob]int)
-	var ready intHeap
-	for i, job := range jobs {
-		compileJobs[job] = i
-		if len(job.dependencies) == 0 {
-			// This job is ready to run.
-			ready.Push(i)
-			continue
-		}
-
-		// Construct a map for dependencies which the job is currently waiting on.
-		waitDeps := make(map[*compileJob]struct{})
-		waiting[job] = waitDeps
-
-		// Add the job to the dependents list of each dependency.
-		for _, dep := range job.dependencies {
-			dependents[dep] = append(dependents[dep], job)
-			waitDeps[dep] = struct{}{}
-		}
-	}
-
-	// Create a channel to accept notifications of completion.
-	doneChan := make(chan *compileJob)
-
-	// Send each job in the jobs slice to a worker, taking care of job dependencies.
-	numRunningJobs := 0
-	var totalTime time.Duration
-	start := time.Now()
-	for len(ready.IntSlice) > 0 || numRunningJobs != 0 {
-		var completed *compileJob
-		if len(ready.IntSlice) > 0 {
-			select {
-			case sema <- struct{}{}:
-				// Start a job.
-				job := jobs[heap.Pop(&ready).(int)]
-				if jobRunnerDebug {
-					fmt.Println("## start:   ", job.description)
-				}
-				go runJob(job, doneChan)
-				numRunningJobs++
-				continue
-
-			case completed = <-doneChan:
-				// A job completed.
-			}
-		} else {
-			// Wait for a job to complete.
-			completed = <-doneChan
-		}
-		numRunningJobs--
-		<-sema
-		if jobRunnerDebug {
-			fmt.Println("## finished:", completed.description, "(time "+completed.duration.String()+")")
-		}
-		if completed.err != nil {
-			// Wait for any current jobs to finish.
-			for numRunningJobs != 0 {
-				<-doneChan
-				numRunningJobs--
-			}
-
-			// The build failed.
-			return completed.err
-		}
-
-		// Update total run time.
-		totalTime += completed.duration
-
-		// Update dependent jobs.
-		for _, j := range dependents[completed] {
-			wait := waiting[j]
-			delete(wait, completed)
-			if len(wait) == 0 {
-				// This job is now ready to run.
-				ready.Push(compileJobs[j])
-				delete(waiting, j)
-			}
-		}
-	}
-	if len(waiting) != 0 {
-		// There is a dependency cycle preventing some jobs from running.
-		return errDependencyCycle{waiting}
-	}
-
-	// Some statistics, if debugging.
-	if jobRunnerDebug {
-		// Total duration of running all jobs.
-		duration := time.Since(start)
-		fmt.Println("## total:   ", duration)
-
-		// The individual time of each job combined. On a multicore system, this
-		// should be lower than the total above.
-		fmt.Println("## job sum: ", totalTime)
-	}
-
-	return nil
-}
-
-type errDependencyCycle struct {
-	waiting map[*compileJob]map[*compileJob]struct{}
-}
-
-func (err errDependencyCycle) Error() string {
-	waits := make([]string, 0, len(err.waiting))
-	for j, wait := range err.waiting {
-		deps := make([]string, 0, len(wait))
-		for dep := range wait {
-			deps = append(deps, dep.description)
-		}
-		sort.Strings(deps)
-
-		waits = append(waits, fmt.Sprintf("\t%s is waiting for [%s]",
-			j.description, strings.Join(deps, ", "),
-		))
-	}
-	sort.Strings(waits)
-	return "deadlock:\n" + strings.Join(waits, "\n")
-}
-
-type intHeap struct {
-	sort.IntSlice
-}
-
-func (h *intHeap) Push(x any) {
-	h.IntSlice = append(h.IntSlice, x.(int))
-}
-
-func (h *intHeap) Pop() any {
-	x := h.IntSlice[len(h.IntSlice)-1]
-	h.IntSlice = h.IntSlice[:len(h.IntSlice)-1]
-	return x
-}
-
-// runJob runs a compile job and notifies doneChan of completion.
-func runJob(job *compileJob, doneChan chan *compileJob) {
-	start := time.Now()
-	if job.run != nil {
-		err := job.run(job)
-		if err != nil {
-			job.err = err
-		}
-	}
-	job.duration = time.Since(start)
-	doneChan <- job
-}

builder/library.go

@@ -1,313 +0,0 @@
-package builder
-
-import (
-	"errors"
-	"io/fs"
-	"os"
-	"path/filepath"
-	"runtime"
-	"strings"
-	"sync"
-
-	"github.com/tinygo-org/tinygo/compileopts"
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-// Library is a container for information about a single C library, such as a
-// compiler runtime or libc.
-//
-// Note: whenever a library gets changed, the version in compileopts/config.go
-// probably also needs to be incremented.
-type Library struct {
-	// The library name, such as compiler-rt or picolibc.
-	name string
-
-	// makeHeaders creates a header include dir for the library
-	makeHeaders func(target, includeDir string) error
-
-	// cflags returns the C flags specific to this library
-	cflags func(target, headerPath string) []string
-
-	// cflagsForFile returns additional C flags for a particular source file.
-	cflagsForFile func(path string) []string
-
-	// needsLibc is set to true if this library needs libc headers.
-	needsLibc bool
-
-	// The source directory.
-	sourceDir func() string
-
-	// The source files, relative to sourceDir.
-	librarySources func(target string, libcNeedsMalloc bool) ([]string, error)
-
-	// The source code for the crt1.o file, relative to sourceDir.
-	crt1Source string
-}
-
-// load returns a compile job to build this library file for the given target
-// and CPU. It may return a dummy compileJob if the library build is already
-// cached. The path is stored as job.result but is only valid after the job has
-// been run.
-// The provided tmpdir will be used to store intermediary files and possibly the
-// output archive file, it is expected to be removed after use.
-// As a side effect, this call creates the library header files if they didn't
-// exist yet.
-func (l *Library) load(config *compileopts.Config, tmpdir string) (job *compileJob, abortLock func(), err error) {
-	outdir := config.LibraryPath(l.name)
-	archiveFilePath := filepath.Join(outdir, "lib.a")
-
-	// Create a lock on the output (if supported).
-	// This is a bit messy, but avoids a deadlock because it is ordered consistently with other library loads within a build.
-	outname := filepath.Base(outdir)
-	unlock := lock(filepath.Join(goenv.Get("GOCACHE"), outname+".lock"))
-	var ok bool
-	defer func() {
-		if !ok {
-			unlock()
-		}
-	}()
-
-	// Try to fetch this library from the cache.
-	if _, err := os.Stat(archiveFilePath); err == nil {
-		return dummyCompileJob(archiveFilePath), func() {}, nil
-	}
-	// Cache miss, build it now.
-
-	// Create the destination directory where the components of this library
-	// (lib.a file, include directory) are placed.
-	err = os.MkdirAll(filepath.Join(goenv.Get("GOCACHE"), outname), 0o777)
-	if err != nil {
-		// Could not create directory (and not because it already exists).
-		return nil, nil, err
-	}
-
-	// Make headers if needed.
-	headerPath := filepath.Join(outdir, "include")
-	target := config.Triple()
-	if l.makeHeaders != nil {
-		if _, err = os.Stat(headerPath); err != nil {
-			temporaryHeaderPath, err := os.MkdirTemp(outdir, "include.tmp*")
-			if err != nil {
-				return nil, nil, err
-			}
-			defer os.RemoveAll(temporaryHeaderPath)
-			err = l.makeHeaders(target, temporaryHeaderPath)
-			if err != nil {
-				return nil, nil, err
-			}
-			err = os.Chmod(temporaryHeaderPath, 0o755) // TempDir uses 0o700 by default
-			if err != nil {
-				return nil, nil, err
-			}
-			err = os.Rename(temporaryHeaderPath, headerPath)
-			if err != nil {
-				switch {
-				case errors.Is(err, fs.ErrExist):
-					// Another invocation of TinyGo also seems to have already created the headers.
-
-				case runtime.GOOS == "windows" && errors.Is(err, fs.ErrPermission):
-					// On Windows, a rename with a destination directory that already
-					// exists does not result in an IsExist error, but rather in an
-					// access denied error. To be sure, check for this case by checking
-					// whether the target directory exists.
-					if _, err := os.Stat(headerPath); err == nil {
-						break
-					}
-					fallthrough
-
-				default:
-					return nil, nil, err
-				}
-			}
-		}
-	}
-
-	remapDir := filepath.Join(os.TempDir(), "tinygo-"+l.name)
-	dir := filepath.Join(tmpdir, "build-lib-"+l.name)
-	err = os.Mkdir(dir, 0777)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	// Precalculate the flags to the compiler invocation.
-	// Note: -fdebug-prefix-map is necessary to make the output archive
-	// reproducible. Otherwise the temporary directory is stored in the archive
-	// itself, which varies each run.
-	args := append(l.cflags(target, headerPath), "-c", "-Oz", "-gdwarf-4", "-ffunction-sections", "-fdata-sections", "-Wno-macro-redefined", "--target="+compileopts.ClangTriple(target), "-fdebug-prefix-map="+dir+"="+remapDir)
-	resourceDir := goenv.ClangResourceDir(false)
-	if resourceDir != "" {
-		args = append(args, "-resource-dir="+resourceDir)
-	}
-	cpu := config.CPU()
-	if cpu != "" {
-		// X86 has deprecated the -mcpu flag, so we need to use -march instead.
-		// However, ARM has not done this.
-		if strings.HasPrefix(target, "i386") || strings.HasPrefix(target, "x86_64") {
-			args = append(args, "-march="+cpu)
-		} else if strings.HasPrefix(target, "avr") {
-			args = append(args, "-mmcu="+cpu)
-		} else {
-			args = append(args, "-mcpu="+cpu)
-		}
-	}
-	if config.ABI() != "" {
-		args = append(args, "-mabi="+config.ABI())
-	}
-	switch compileopts.CanonicalArchName(target) {
-	case "arm":
-		if strings.Split(target, "-")[2] == "linux" {
-			args = append(args, "-fno-unwind-tables", "-fno-asynchronous-unwind-tables")
-		} else {
-			args = append(args, "-fshort-enums", "-fomit-frame-pointer", "-mfloat-abi=soft", "-fno-unwind-tables", "-fno-asynchronous-unwind-tables")
-		}
-	case "avr":
-		// AVR defaults to C float and double both being 32-bit. This deviates
-		// from what most code (and certainly compiler-rt) expects. So we need
-		// to force the compiler to use 64-bit floating point numbers for
-		// double.
-		args = append(args, "-mdouble=64")
-	case "riscv32":
-		args = append(args, "-march="+riscvMarch(config, "rv32imac"), "-fforce-enable-int128")
-	case "riscv64":
-		args = append(args, "-march="+riscvMarch(config, "rv64gc"))
-	case "mips":
-		args = append(args, "-fno-pic")
-	}
-	if config.Target.SoftFloat {
-		// Use softfloat instead of floating point instructions. This is
-		// supported on many architectures.
-		args = append(args, "-msoft-float")
-	} else {
-		if strings.HasPrefix(target, "armv5") {
-			// On ARMv5 we need to explicitly enable hardware floating point
-			// instructions: Clang appears to assume the hardware doesn't have a
-			// FPU otherwise.
-			args = append(args, "-mfpu=vfpv2")
-		}
-	}
-	if l.needsLibc {
-		args = append(args, config.LibcCFlags()...)
-	}
-
-	var once sync.Once
-
-	// Create job to put all the object files in a single archive. This archive
-	// file is the (static) library file.
-	var objs []string
-	job = &compileJob{
-		description: "ar " + l.name + "/lib.a",
-		result:      filepath.Join(goenv.Get("GOCACHE"), outname, "lib.a"),
-		run: func(*compileJob) error {
-			defer once.Do(unlock)
-
-			// Create an archive of all object files.
-			f, err := os.CreateTemp(outdir, "libc.a.tmp*")
-			if err != nil {
-				return err
-			}
-			err = makeArchive(f, objs)
-			if err != nil {
-				return err
-			}
-			err = f.Close()
-			if err != nil {
-				return err
-			}
-			err = os.Chmod(f.Name(), 0o644) // TempFile uses 0o600 by default
-			if err != nil {
-				return err
-			}
-			// Store this archive in the cache.
-			return robustRename(f.Name(), archiveFilePath)
-		},
-	}
-
-	sourceDir := l.sourceDir()
-
-	// Create jobs to compile all sources. These jobs are depended upon by the
-	// archive job above, so must be run first.
-	paths, err := l.librarySources(target, config.LibcNeedsMalloc())
-	if err != nil {
-		return nil, nil, err
-	}
-	for _, path := range paths {
-		// Strip leading "../" parts off the path.
-		cleanpath := path
-		for strings.HasPrefix(cleanpath, "../") {
-			cleanpath = cleanpath[3:]
-		}
-		srcpath := filepath.Join(sourceDir, path)
-		objpath := filepath.Join(dir, cleanpath+".o")
-		os.MkdirAll(filepath.Dir(objpath), 0o777)
-		objs = append(objs, objpath)
-		objfile := &compileJob{
-			description: "compile " + srcpath,
-			run: func(*compileJob) error {
-				var compileArgs []string
-				compileArgs = append(compileArgs, args...)
-				if l.cflagsForFile != nil {
-					compileArgs = append(compileArgs, l.cflagsForFile(path)...)
-				}
-				compileArgs = append(compileArgs, "-o", objpath, srcpath)
-				if config.Options.PrintCommands != nil {
-					config.Options.PrintCommands("clang", compileArgs...)
-				}
-				err := runCCompiler(compileArgs...)
-				if err != nil {
-					return &commandError{"failed to build", srcpath, err}
-				}
-				return nil
-			},
-		}
-		job.dependencies = append(job.dependencies, objfile)
-	}
-
-	// Create crt1.o job, if needed.
-	// Add this as a (fake) dependency to the ar file so it gets compiled.
-	// (It could be done in parallel with creating the ar file, but it probably
-	// won't make much of a difference in speed).
-	if l.crt1Source != "" {
-		srcpath := filepath.Join(sourceDir, l.crt1Source)
-		crt1Job := &compileJob{
-			description: "compile " + srcpath,
-			run: func(*compileJob) error {
-				var compileArgs []string
-				compileArgs = append(compileArgs, args...)
-				tmpfile, err := os.CreateTemp(outdir, "crt1.o.tmp*")
-				if err != nil {
-					return err
-				}
-				tmpfile.Close()
-				compileArgs = append(compileArgs, "-o", tmpfile.Name(), srcpath)
-				if config.Options.PrintCommands != nil {
-					config.Options.PrintCommands("clang", compileArgs...)
-				}
-				err = runCCompiler(compileArgs...)
-				if err != nil {
-					return &commandError{"failed to build", srcpath, err}
-				}
-				return os.Rename(tmpfile.Name(), filepath.Join(outdir, "crt1.o"))
-			},
-		}
-		job.dependencies = append(job.dependencies, crt1Job)
-	}
-
-	ok = true
-	return job, func() {
-		once.Do(unlock)
-	}, nil
-}
-
-// riscvMarch returns the -march value for RISC-V library compilation.
-// It extracts the value from the target's cflags if present, otherwise
-// falls back to the provided default. This ensures libraries are compiled
-// with the correct ISA extensions for each target (e.g. rv32imc for
-// ESP32-C3 which lacks the atomic extension).
-func riscvMarch(config *compileopts.Config, defaultMarch string) string {
-	for _, flag := range config.Target.CFlags {
-		if strings.HasPrefix(flag, "-march=") {
-			return flag[len("-march="):]
-		}
-	}
-	return defaultMarch
-}

builder/lld.cpp

@@ -1,32 +0,0 @@
-//go:build byollvm
-
-// This file provides C wrappers for liblld.
-
-#include <lld/Common/Driver.h>
-#include <llvm/Support/Parallel.h>
-
-LLD_HAS_DRIVER(coff)
-LLD_HAS_DRIVER(elf)
-LLD_HAS_DRIVER(mingw)
-LLD_HAS_DRIVER(macho)
-LLD_HAS_DRIVER(wasm)
-
-static void configure() {
-#if _WIN64
-	// This is a hack to work around a hang in the LLD linker on Windows, with
-	// -DLLVM_ENABLE_THREADS=ON. It has a similar effect as the -threads=1
-	// linker flag, but with support for the COFF linker.
-	llvm::parallel::strategy = llvm::hardware_concurrency(1);
-#endif
-}
-
-extern "C" {
-
-bool tinygo_link(int argc, char **argv) {
-	configure();
-	std::vector<const char*> args(argv, argv + argc);
-	lld::Result r = lld::lldMain(args, llvm::outs(), llvm::errs(), LLD_ALL_DRIVERS);
-	return !r.retCode;
-}
-
-} // external "C"

builder/mingw-w64.go

@@ -1,174 +0,0 @@
-package builder
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-var libMinGW = Library{
-	name: "mingw-w64",
-	makeHeaders: func(target, includeDir string) error {
-		// copy _mingw.h
-		srcDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib", "mingw-w64")
-		outf, err := os.Create(includeDir + "/_mingw.h")
-		if err != nil {
-			return err
-		}
-		defer outf.Close()
-		inf, err := os.Open(srcDir + "/mingw-w64-headers/crt/_mingw.h.in")
-		if err != nil {
-			return err
-		}
-		_, err = io.Copy(outf, inf)
-		return err
-	},
-	sourceDir: func() string { return filepath.Join(goenv.Get("TINYGOROOT"), "lib/mingw-w64") },
-	cflags: func(target, headerPath string) []string {
-		mingwDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib/mingw-w64")
-		flags := []string{
-			"-nostdlibinc",
-			"-isystem", mingwDir + "/mingw-w64-crt/include",
-			"-isystem", mingwDir + "/mingw-w64-headers/crt",
-			"-isystem", mingwDir + "/mingw-w64-headers/include",
-			"-I", mingwDir + "/mingw-w64-headers/defaults/include",
-			"-I" + headerPath,
-		}
-		if strings.Split(target, "-")[0] == "i386" {
-			flags = append(flags,
-				"-D__MSVCRT_VERSION__=0x700", // Microsoft Visual C++ .NET 2002
-				"-D_WIN32_WINNT=0x0501",      // target Windows XP
-				"-D_CRTBLD",
-				"-Wno-pragma-pack",
-			)
-		}
-		return flags
-	},
-	librarySources: func(target string, _ bool) ([]string, error) {
-		// These files are needed so that printf and the like are supported.
-		var sources []string
-		if strings.Split(target, "-")[0] == "i386" {
-			// Old 32-bit x86 systems use msvcrt.dll.
-			sources = []string{
-				"mingw-w64-crt/crt/pseudo-reloc.c",
-				"mingw-w64-crt/gdtoa/dmisc.c",
-				"mingw-w64-crt/gdtoa/gdtoa.c",
-				"mingw-w64-crt/gdtoa/gmisc.c",
-				"mingw-w64-crt/gdtoa/misc.c",
-				"mingw-w64-crt/math/x86/exp2.S",
-				"mingw-w64-crt/math/x86/trunc.S",
-				"mingw-w64-crt/misc/___mb_cur_max_func.c",
-				"mingw-w64-crt/misc/lc_locale_func.c",
-				"mingw-w64-crt/misc/mbrtowc.c",
-				"mingw-w64-crt/misc/strnlen.c",
-				"mingw-w64-crt/misc/wcrtomb.c",
-				"mingw-w64-crt/misc/wcsnlen.c",
-				"mingw-w64-crt/stdio/acrt_iob_func.c",
-				"mingw-w64-crt/stdio/mingw_lock.c",
-				"mingw-w64-crt/stdio/mingw_pformat.c",
-				"mingw-w64-crt/stdio/mingw_vfprintf.c",
-				"mingw-w64-crt/stdio/mingw_vsnprintf.c",
-			}
-		} else {
-			// Anything somewhat modern (amd64, arm64) uses UCRT.
-			sources = []string{
-				"mingw-w64-crt/stdio/ucrt_fprintf.c",
-				"mingw-w64-crt/stdio/ucrt_fwprintf.c",
-				"mingw-w64-crt/stdio/ucrt_printf.c",
-				"mingw-w64-crt/stdio/ucrt_snprintf.c",
-				"mingw-w64-crt/stdio/ucrt_sprintf.c",
-				"mingw-w64-crt/stdio/ucrt_vfprintf.c",
-				"mingw-w64-crt/stdio/ucrt_vprintf.c",
-				"mingw-w64-crt/stdio/ucrt_vsnprintf.c",
-				"mingw-w64-crt/stdio/ucrt_vsprintf.c",
-			}
-		}
-		return sources, nil
-	},
-}
-
-// makeMinGWExtraLibs returns a slice of jobs to import the correct .dll
-// libraries. This is done by converting input .def files to .lib files which
-// can then be linked as usual.
-//
-// TODO: cache the result. At the moment, it costs a few hundred milliseconds to
-// compile these files.
-func makeMinGWExtraLibs(tmpdir, goarch string) []*compileJob {
-	var jobs []*compileJob
-	root := goenv.Get("TINYGOROOT")
-	var libs []string
-	if goarch == "386" {
-		libs = []string{
-			// x86 uses msvcrt.dll instead of UCRT for compatibility with old
-			// Windows versions.
-			"advapi32.def.in",
-			"kernel32.def.in",
-			"msvcrt.def.in",
-		}
-	} else {
-		// Use the modernized UCRT on new systems.
-		// Normally all the api-ms-win-crt-*.def files are all compiled to a
-		// single .lib file. But to simplify things, we're going to leave them
-		// as separate files.
-		libs = []string{
-			"advapi32.def.in",
-			"kernel32.def.in",
-			"api-ms-win-crt-conio-l1-1-0.def",
-			"api-ms-win-crt-convert-l1-1-0.def.in",
-			"api-ms-win-crt-environment-l1-1-0.def",
-			"api-ms-win-crt-filesystem-l1-1-0.def",
-			"api-ms-win-crt-heap-l1-1-0.def",
-			"api-ms-win-crt-locale-l1-1-0.def",
-			"api-ms-win-crt-math-l1-1-0.def.in",
-			"api-ms-win-crt-multibyte-l1-1-0.def",
-			"api-ms-win-crt-private-l1-1-0.def.in",
-			"api-ms-win-crt-process-l1-1-0.def",
-			"api-ms-win-crt-runtime-l1-1-0.def.in",
-			"api-ms-win-crt-stdio-l1-1-0.def",
-			"api-ms-win-crt-string-l1-1-0.def",
-			"api-ms-win-crt-time-l1-1-0.def",
-			"api-ms-win-crt-utility-l1-1-0.def",
-		}
-	}
-	for _, name := range libs {
-		outpath := filepath.Join(tmpdir, filepath.Base(name)+".lib")
-		inpath := filepath.Join(root, "lib/mingw-w64/mingw-w64-crt/lib-common/"+name)
-		job := &compileJob{
-			description: "create lib file " + inpath,
-			result:      outpath,
-			run: func(job *compileJob) error {
-				defpath := inpath
-				var archDef, emulation string
-				switch goarch {
-				case "386":
-					archDef = "-DDEF_I386"
-					emulation = "i386pe"
-				case "amd64":
-					archDef = "-DDEF_X64"
-					emulation = "i386pep"
-				case "arm64":
-					archDef = "-DDEF_ARM64"
-					emulation = "arm64pe"
-				default:
-					return fmt.Errorf("unsupported architecture for mingw-w64: %s", goarch)
-				}
-				if strings.HasSuffix(inpath, ".in") {
-					// .in files need to be preprocessed by a preprocessor (-E)
-					// first.
-					defpath = outpath + ".def"
-					err := runCCompiler("-E", "-x", "c", "-Wp,-w", "-P", archDef, "-DDATA", "-o", defpath, inpath, "-I"+goenv.Get("TINYGOROOT")+"/lib/mingw-w64/mingw-w64-crt/def-include/")
-					if err != nil {
-						return err
-					}
-				}
-				return link("ld.lld", "-m", emulation, "-o", outpath, defpath)
-			},
-		}
-		jobs = append(jobs, job)
-	}
-	return jobs
-}

builder/musl.go

@@ -1,209 +0,0 @@
-package builder
-
-import (
-	"bytes"
-	"fmt"
-	"os"
-	"path/filepath"
-	"regexp"
-	"strings"
-
-	"github.com/tinygo-org/tinygo/compileopts"
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-// Create the alltypes.h file from the appropriate alltypes.h.in files.
-func buildMuslAllTypes(arch, muslDir, outputBitsDir string) error {
-	// Create the file alltypes.h.
-	f, err := os.Create(filepath.Join(outputBitsDir, "alltypes.h"))
-	if err != nil {
-		return err
-	}
-	infiles := []string{
-		filepath.Join(muslDir, "arch", arch, "bits", "alltypes.h.in"),
-		filepath.Join(muslDir, "include", "alltypes.h.in"),
-	}
-	for _, infile := range infiles {
-		data, err := os.ReadFile(infile)
-		if err != nil {
-			return err
-		}
-		lines := strings.SplitSeq(string(data), "\n")
-		for line := range lines {
-			if strings.HasPrefix(line, "TYPEDEF ") {
-				matches := regexp.MustCompile(`TYPEDEF (.*) ([^ ]*);`).FindStringSubmatch(line)
-				value := matches[1]
-				name := matches[2]
-				line = fmt.Sprintf("#if defined(__NEED_%s) && !defined(__DEFINED_%s)\ntypedef %s %s;\n#define __DEFINED_%s\n#endif\n", name, name, value, name, name)
-			}
-			if strings.HasPrefix(line, "STRUCT ") {
-				matches := regexp.MustCompile(`STRUCT * ([^ ]*) (.*);`).FindStringSubmatch(line)
-				name := matches[1]
-				value := matches[2]
-				line = fmt.Sprintf("#if defined(__NEED_struct_%s) && !defined(__DEFINED_struct_%s)\nstruct %s %s;\n#define __DEFINED_struct_%s\n#endif\n", name, name, name, value, name)
-			}
-			_, err := f.WriteString(line + "\n")
-			if err != nil {
-				return err
-			}
-		}
-	}
-	return f.Close()
-}
-
-var libMusl = Library{
-	name: "musl",
-	makeHeaders: func(target, includeDir string) error {
-		bits := filepath.Join(includeDir, "bits")
-		err := os.Mkdir(bits, 0777)
-		if err != nil {
-			return err
-		}
-
-		arch := compileopts.MuslArchitecture(target)
-		muslDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib", "musl")
-
-		err = buildMuslAllTypes(arch, muslDir, bits)
-		if err != nil {
-			return err
-		}
-
-		// Create the file syscall.h.
-		f, err := os.Create(filepath.Join(bits, "syscall.h"))
-		if err != nil {
-			return err
-		}
-		data, err := os.ReadFile(filepath.Join(muslDir, "arch", arch, "bits", "syscall.h.in"))
-		if err != nil {
-			return err
-		}
-		_, err = f.Write(bytes.ReplaceAll(data, []byte("__NR_"), []byte("SYS_")))
-		if err != nil {
-			return err
-		}
-		f.Close()
-
-		return nil
-	},
-	cflags: func(target, headerPath string) []string {
-		arch := compileopts.MuslArchitecture(target)
-		muslDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib/musl")
-		cflags := []string{
-			"-std=c99",            // same as in musl
-			"-D_XOPEN_SOURCE=700", // same as in musl
-			// Musl triggers some warnings and we don't want to show any
-			// warnings while compiling (only errors or silence), so disable
-			// specific warnings that are triggered in musl.
-			"-Werror",
-			"-Wno-logical-op-parentheses",
-			"-Wno-bitwise-op-parentheses",
-			"-Wno-shift-op-parentheses",
-			"-Wno-ignored-attributes",
-			"-Wno-string-plus-int",
-			"-Wno-ignored-pragmas",
-			"-Wno-tautological-constant-out-of-range-compare",
-			"-Wno-deprecated-non-prototype",
-			"-Wno-format",
-			"-Wno-parentheses",
-			"-Qunused-arguments",
-			// Select include dirs. Don't include standard library includes
-			// (that would introduce host dependencies and other complications),
-			// but do include all the include directories expected by musl.
-			"-nostdlibinc",
-			"-I" + muslDir + "/arch/" + arch,
-			"-I" + muslDir + "/arch/generic",
-			"-I" + muslDir + "/src/include",
-			"-I" + muslDir + "/src/internal",
-			"-I" + headerPath,
-			"-I" + muslDir + "/include",
-			"-fno-stack-protector",
-		}
-		return cflags
-	},
-	sourceDir: func() string { return filepath.Join(goenv.Get("TINYGOROOT"), "lib/musl/src") },
-	librarySources: func(target string, _ bool) ([]string, error) {
-		arch := compileopts.MuslArchitecture(target)
-		globs := []string{
-			"conf/*.c",
-			"ctype/*.c",
-			"env/*.c",
-			"errno/*.c",
-			"exit/*.c",
-			"fcntl/*.c",
-			"internal/defsysinfo.c",
-			"internal/intscan.c",
-			"internal/libc.c",
-			"internal/shgetc.c",
-			"internal/syscall_ret.c",
-			"internal/vdso.c",
-			"legacy/*.c",
-			"locale/*.c",
-			"linux/*.c",
-			"locale/*.c",
-			"malloc/*.c",
-			"malloc/mallocng/*.c",
-			"mman/*.c",
-			"math/*.c",
-			"misc/*.c",
-			"multibyte/*.c",
-			"sched/*.c",
-			"signal/" + arch + "/*.s",
-			"signal/*.c",
-			"stdio/*.c",
-			"stdlib/*.c",
-			"string/*.c",
-			"thread/" + arch + "/*.s",
-			"thread/*.c",
-			"time/*.c",
-			"unistd/*.c",
-			"process/*.c",
-		}
-
-		if arch == "arm" {
-			// These files need to be added to the start for some reason.
-			globs = append([]string{"thread/arm/*.c"}, globs...)
-		}
-
-		if arch != "aarch64" && arch != "mips" {
-			//aarch64 and mips have no architecture specific code, either they
-			// are not supported or don't need any?
-			globs = append([]string{"process/" + arch + "/*.s"}, globs...)
-		}
-
-		var sources []string
-		seenSources := map[string]struct{}{}
-		basepath := goenv.Get("TINYGOROOT") + "/lib/musl/src/"
-		for _, pattern := range globs {
-			matches, err := filepath.Glob(basepath + pattern)
-			if err != nil {
-				// From the documentation:
-				// > Glob ignores file system errors such as I/O errors reading
-				// > directories. The only possible returned error is
-				// > ErrBadPattern, when pattern is malformed.
-				// So the only possible error is when the (statically defined)
-				// pattern is wrong. In other words, a programming bug.
-				return nil, fmt.Errorf("musl: could not glob source dirs: %w", err)
-			}
-			if len(matches) == 0 {
-				return nil, fmt.Errorf("musl: did not find any files for pattern %#v", pattern)
-			}
-			for _, match := range matches {
-				relpath, err := filepath.Rel(basepath, match)
-				if err != nil {
-					// Not sure if this is even possible.
-					return nil, err
-				}
-				// Make sure architecture specific files override generic files.
-				id := strings.ReplaceAll(relpath, "/"+arch+"/", "/")
-				if _, ok := seenSources[id]; ok {
-					// Already seen this file, skipping this (generic) file.
-					continue
-				}
-				seenSources[id] = struct{}{}
-				sources = append(sources, relpath)
-			}
-		}
-		return sources, nil
-	},
-	crt1Source: "../crt/crt1.c", // lib/musl/crt/crt1.c
-}

builder/nrfutil.go

@@ -1,117 +0,0 @@
-package builder
-
-import (
-	"archive/zip"
-	"bytes"
-	"encoding/binary"
-	"encoding/json"
-	"os"
-
-	"github.com/sigurn/crc16"
-	"github.com/tinygo-org/tinygo/compileopts"
-)
-
-// Structure of the manifest.json file.
-type jsonManifest struct {
-	Manifest struct {
-		Application struct {
-			BinaryFile     string        `json:"bin_file"`
-			DataFile       string        `json:"dat_file"`
-			InitPacketData nrfInitPacket `json:"init_packet_data"`
-		} `json:"application"`
-		DFUVersion float64 `json:"dfu_version"` // yes, this is a JSON number, not a string
-	} `json:"manifest"`
-}
-
-// Structure of the init packet.
-// Source:
-// https://github.com/adafruit/Adafruit_nRF52_Bootloader/blob/master/lib/sdk11/components/libraries/bootloader_dfu/dfu_init.h#L47-L57
-type nrfInitPacket struct {
-	ApplicationVersion uint32   `json:"application_version"`
-	DeviceRevision     uint16   `json:"device_revision"`
-	DeviceType         uint16   `json:"device_type"`
-	FirmwareCRC16      uint16   `json:"firmware_crc16"`
-	SoftDeviceRequired []uint16 `json:"softdevice_req"` // this is actually a variable length array
-}
-
-// Create the init packet (the contents of application.dat).
-func (p nrfInitPacket) createInitPacket() []byte {
-	buf := &bytes.Buffer{}
-	binary.Write(buf, binary.LittleEndian, p.DeviceType)                      // uint16_t device_type;
-	binary.Write(buf, binary.LittleEndian, p.DeviceRevision)                  // uint16_t device_rev;
-	binary.Write(buf, binary.LittleEndian, p.ApplicationVersion)              // uint32_t app_version;
-	binary.Write(buf, binary.LittleEndian, uint16(len(p.SoftDeviceRequired))) // uint16_t softdevice_len;
-	binary.Write(buf, binary.LittleEndian, p.SoftDeviceRequired)              // uint16_t softdevice[1];
-	binary.Write(buf, binary.LittleEndian, p.FirmwareCRC16)
-	return buf.Bytes()
-}
-
-// Make a Nordic DFU firmware image from an ELF file.
-func makeDFUFirmwareImage(options *compileopts.Options, infile, outfile string) error {
-	// Read ELF file as input and convert it to a binary image file.
-	_, data, err := extractROM(infile)
-	if err != nil {
-		return err
-	}
-
-	// Create the zip file in memory.
-	// It won't be very large anyway.
-	buf := &bytes.Buffer{}
-	w := zip.NewWriter(buf)
-
-	// Write the application binary to the zip file.
-	binw, err := w.Create("application.bin")
-	if err != nil {
-		return err
-	}
-	_, err = binw.Write(data)
-	if err != nil {
-		return err
-	}
-
-	// Create the init packet.
-	initPacket := nrfInitPacket{
-		ApplicationVersion: 0xffff_ffff, // appears to be unused by the Adafruit bootloader
-		DeviceRevision:     0xffff,      // DFU_DEVICE_REVISION_EMPTY
-		DeviceType:         0x0052,      // ADAFRUIT_DEVICE_TYPE
-		FirmwareCRC16:      crc16.Checksum(data, crc16.MakeTable(crc16.CRC16_CCITT_FALSE)),
-		SoftDeviceRequired: []uint16{0xfffe}, // DFU_SOFTDEVICE_ANY
-	}
-
-	// Write the init packet to the zip file.
-	datw, err := w.Create("application.dat")
-	if err != nil {
-		return err
-	}
-	_, err = datw.Write(initPacket.createInitPacket())
-	if err != nil {
-		return err
-	}
-
-	// Create the JSON manifest.
-	manifest := &jsonManifest{}
-	manifest.Manifest.Application.BinaryFile = "application.bin"
-	manifest.Manifest.Application.DataFile = "application.dat"
-	manifest.Manifest.Application.InitPacketData = initPacket
-	manifest.Manifest.DFUVersion = 0.5
-
-	// Write the JSON manifest to the file.
-	jsonw, err := w.Create("manifest.json")
-	if err != nil {
-		return err
-	}
-	enc := json.NewEncoder(jsonw)
-	enc.SetIndent("", "    ")
-	err = enc.Encode(manifest)
-	if err != nil {
-		return err
-	}
-
-	// Finish the zip file.
-	err = w.Close()
-	if err != nil {
-		return err
-	}
-
-	return os.WriteFile(outfile, buf.Bytes(), 0o666)
-}

builder/picolibc.go

@@ -1,444 +0,0 @@
-package builder
-
-import (
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-// libPicolibc is a C library for bare metal embedded devices. It was originally
-// based on newlib.
-var libPicolibc = Library{
-	name: "picolibc",
-	makeHeaders: func(target, includeDir string) error {
-		f, err := os.Create(filepath.Join(includeDir, "picolibc.h"))
-		if err != nil {
-			return err
-		}
-		return f.Close()
-	},
-	cflags: func(target, headerPath string) []string {
-		newlibDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib/picolibc/newlib")
-		return []string{
-			"-Werror",
-			"-Wall",
-			"-std=gnu11",
-			"-D_COMPILING_NEWLIB",
-			"-D_HAVE_ALIAS_ATTRIBUTE",
-			"-DTINY_STDIO",
-			"-DPOSIX_IO",
-			"-DFORMAT_DEFAULT_INTEGER", // use __i_vfprintf and __i_vfscanf by default
-			"-D_IEEE_LIBM",
-			"-D__OBSOLETE_MATH_FLOAT=1", // use old math code that doesn't expect a FPU
-			"-D__OBSOLETE_MATH_DOUBLE=0",
-			"-D_WANT_IO_C99_FORMATS",
-			"-D__PICOLIBC_ERRNO_FUNCTION=__errno_location",
-			"-nostdlibinc",
-			"-isystem", newlibDir + "/libc/include",
-			"-I" + newlibDir + "/libc/tinystdio",
-			"-I" + newlibDir + "/libm/common",
-			"-I" + headerPath,
-		}
-	},
-	sourceDir: func() string { return filepath.Join(goenv.Get("TINYGOROOT"), "lib/picolibc/newlib") },
-	librarySources: func(target string, _ bool) ([]string, error) {
-		sources := append([]string(nil), picolibcSources...)
-		if !strings.HasPrefix(target, "avr") {
-			// Small chips without long jumps can't compile many files (printf,
-			// pow, etc). Therefore exclude those source files for those chips.
-			// Unfortunately it's difficult to exclude only some chips, so this
-			// excludes those files on all AVR chips for now.
-			// More information:
-			// https://github.com/llvm/llvm-project/issues/67042
-			sources = append(sources, picolibcSourcesLarge...)
-		}
-		return sources, nil
-	},
-}
-
-var picolibcSources = []string{
-	"../../picolibc-stdio.c",
-
-	"libc/string/bcmp.c",
-	"libc/string/bcopy.c",
-	"libc/string/bzero.c",
-	"libc/string/explicit_bzero.c",
-	"libc/string/ffsl.c",
-	"libc/string/ffsll.c",
-	"libc/string/fls.c",
-	"libc/string/flsl.c",
-	"libc/string/flsll.c",
-	"libc/string/gnu_basename.c",
-	"libc/string/index.c",
-	"libc/string/memccpy.c",
-	"libc/string/memchr.c",
-	"libc/string/memcmp.c",
-	"libc/string/memcpy.c",
-	"libc/string/memmem.c",
-	"libc/string/memmove.c",
-	"libc/string/mempcpy.c",
-	"libc/string/memrchr.c",
-	"libc/string/memset.c",
-	"libc/string/rawmemchr.c",
-	"libc/string/rindex.c",
-	"libc/string/stpcpy.c",
-	"libc/string/stpncpy.c",
-	"libc/string/strcasecmp.c",
-	"libc/string/strcasecmp_l.c",
-	"libc/string/strcasestr.c",
-	"libc/string/strcat.c",
-	"libc/string/strchr.c",
-	"libc/string/strchrnul.c",
-	"libc/string/strcmp.c",
-	"libc/string/strcoll.c",
-	"libc/string/strcoll_l.c",
-	"libc/string/strcpy.c",
-	"libc/string/strcspn.c",
-	"libc/string/strdup.c",
-	"libc/string/strerror.c",
-	"libc/string/strerror_r.c",
-	"libc/string/strlcat.c",
-	"libc/string/strlcpy.c",
-	"libc/string/strlen.c",
-	"libc/string/strlwr.c",
-	"libc/string/strncasecmp.c",
-	"libc/string/strncasecmp_l.c",
-	"libc/string/strncat.c",
-	"libc/string/strncmp.c",
-	"libc/string/strncpy.c",
-	"libc/string/strndup.c",
-	"libc/string/strnlen.c",
-	"libc/string/strnstr.c",
-	"libc/string/strpbrk.c",
-	"libc/string/strrchr.c",
-	"libc/string/strsep.c",
-	"libc/string/strsignal.c",
-	"libc/string/strspn.c",
-	"libc/string/strstr.c",
-	"libc/string/strtok.c",
-	"libc/string/strtok_r.c",
-	"libc/string/strupr.c",
-	"libc/string/strverscmp.c",
-	"libc/string/strxfrm.c",
-	"libc/string/strxfrm_l.c",
-	"libc/string/swab.c",
-	"libc/string/timingsafe_bcmp.c",
-	"libc/string/timingsafe_memcmp.c",
-	"libc/string/u_strerr.c",
-	"libc/string/wcpcpy.c",
-	"libc/string/wcpncpy.c",
-	"libc/string/wcscasecmp.c",
-	"libc/string/wcscasecmp_l.c",
-	"libc/string/wcscat.c",
-	"libc/string/wcschr.c",
-	"libc/string/wcscmp.c",
-	"libc/string/wcscoll.c",
-	"libc/string/wcscoll_l.c",
-	"libc/string/wcscpy.c",
-	"libc/string/wcscspn.c",
-	"libc/string/wcsdup.c",
-	"libc/string/wcslcat.c",
-	"libc/string/wcslcpy.c",
-	"libc/string/wcslen.c",
-	"libc/string/wcsncasecmp.c",
-	"libc/string/wcsncasecmp_l.c",
-	"libc/string/wcsncat.c",
-	"libc/string/wcsncmp.c",
-	"libc/string/wcsncpy.c",
-	"libc/string/wcsnlen.c",
-	"libc/string/wcspbrk.c",
-	"libc/string/wcsrchr.c",
-	"libc/string/wcsspn.c",
-	"libc/string/wcsstr.c",
-	"libc/string/wcstok.c",
-	"libc/string/wcswidth.c",
-	"libc/string/wcsxfrm.c",
-	"libc/string/wcsxfrm_l.c",
-	"libc/string/wcwidth.c",
-	"libc/string/wmemchr.c",
-	"libc/string/wmemcmp.c",
-	"libc/string/wmemcpy.c",
-	"libc/string/wmemmove.c",
-	"libc/string/wmempcpy.c",
-	"libc/string/wmemset.c",
-	"libc/string/xpg_strerror_r.c",
-}
-
-// Parts of picolibc that are too large for small AVRs.
-var picolibcSourcesLarge = []string{
-	// srcs_tinystdio
-	"libc/tinystdio/asprintf.c",
-	"libc/tinystdio/bufio.c",
-	"libc/tinystdio/clearerr.c",
-	"libc/tinystdio/ecvt_r.c",
-	"libc/tinystdio/ecvt.c",
-	"libc/tinystdio/ecvtf_r.c",
-	"libc/tinystdio/ecvtf.c",
-	"libc/tinystdio/fcvt.c",
-	"libc/tinystdio/fcvt_r.c",
-	"libc/tinystdio/fcvtf.c",
-	"libc/tinystdio/fcvtf_r.c",
-	"libc/tinystdio/gcvt.c",
-	"libc/tinystdio/gcvtf.c",
-	"libc/tinystdio/fclose.c",
-	"libc/tinystdio/fdevopen.c",
-	"libc/tinystdio/feof.c",
-	"libc/tinystdio/ferror.c",
-	"libc/tinystdio/fflush.c",
-	"libc/tinystdio/fgetc.c",
-	"libc/tinystdio/fgets.c",
-	"libc/tinystdio/fileno.c",
-	"libc/tinystdio/filestrget.c",
-	"libc/tinystdio/filestrput.c",
-	"libc/tinystdio/filestrputalloc.c",
-	"libc/tinystdio/fmemopen.c",
-	"libc/tinystdio/fprintf.c",
-	"libc/tinystdio/fputc.c",
-	"libc/tinystdio/fputs.c",
-	"libc/tinystdio/fread.c",
-	//"libc/tinystdio/freopen.c", // crashes with AVR, see: https://github.com/picolibc/picolibc/pull/369
-	"libc/tinystdio/fscanf.c",
-	"libc/tinystdio/fseek.c",
-	"libc/tinystdio/fseeko.c",
-	"libc/tinystdio/ftell.c",
-	"libc/tinystdio/ftello.c",
-	"libc/tinystdio/fwrite.c",
-	"libc/tinystdio/getchar.c",
-	"libc/tinystdio/gets.c",
-	"libc/tinystdio/matchcaseprefix.c",
-	"libc/tinystdio/mktemp.c",
-	"libc/tinystdio/perror.c",
-	"libc/tinystdio/printf.c",
-	"libc/tinystdio/putchar.c",
-	"libc/tinystdio/puts.c",
-	"libc/tinystdio/rewind.c",
-	"libc/tinystdio/scanf.c",
-	"libc/tinystdio/setbuf.c",
-	"libc/tinystdio/setbuffer.c",
-	"libc/tinystdio/setlinebuf.c",
-	"libc/tinystdio/setvbuf.c",
-	"libc/tinystdio/snprintf.c",
-	"libc/tinystdio/sprintf.c",
-	"libc/tinystdio/snprintfd.c",
-	"libc/tinystdio/snprintff.c",
-	"libc/tinystdio/sprintff.c",
-	"libc/tinystdio/sprintfd.c",
-	"libc/tinystdio/sscanf.c",
-	"libc/tinystdio/strfromf.c",
-	"libc/tinystdio/strfromd.c",
-	"libc/tinystdio/strtof.c",
-	"libc/tinystdio/strtof_l.c",
-	"libc/tinystdio/strtod.c",
-	"libc/tinystdio/strtod_l.c",
-	"libc/tinystdio/ungetc.c",
-	"libc/tinystdio/vasprintf.c",
-	"libc/tinystdio/vfiprintf.c",
-	"libc/tinystdio/vfprintf.c",
-	"libc/tinystdio/vfprintff.c",
-	"libc/tinystdio/vfscanf.c",
-	"libc/tinystdio/vfiscanf.c",
-	"libc/tinystdio/vfscanff.c",
-	"libc/tinystdio/vprintf.c",
-	"libc/tinystdio/vscanf.c",
-	"libc/tinystdio/vsscanf.c",
-	"libc/tinystdio/vsnprintf.c",
-	"libc/tinystdio/vsprintf.c",
-
-	"libm/common/sf_finite.c",
-	"libm/common/sf_copysign.c",
-	"libm/common/sf_modf.c",
-	"libm/common/sf_scalbn.c",
-	"libm/common/sf_cbrt.c",
-	"libm/common/sf_exp10.c",
-	"libm/common/sf_expm1.c",
-	"libm/common/sf_ilogb.c",
-	"libm/common/sf_infinity.c",
-	"libm/common/sf_isinf.c",
-	"libm/common/sf_isinff.c",
-	"libm/common/sf_isnan.c",
-	"libm/common/sf_isnanf.c",
-	"libm/common/sf_issignaling.c",
-	"libm/common/sf_log1p.c",
-	"libm/common/sf_nan.c",
-	"libm/common/sf_nextafter.c",
-	"libm/common/sf_pow10.c",
-	"libm/common/sf_rint.c",
-	"libm/common/sf_logb.c",
-	"libm/common/sf_fdim.c",
-	"libm/common/sf_fma.c",
-	"libm/common/sf_fmax.c",
-	"libm/common/sf_fmin.c",
-	"libm/common/sf_fpclassify.c",
-	"libm/common/sf_lrint.c",
-	"libm/common/sf_llrint.c",
-	"libm/common/sf_lround.c",
-	"libm/common/sf_llround.c",
-	"libm/common/sf_nearbyint.c",
-	"libm/common/sf_remquo.c",
-	"libm/common/sf_round.c",
-	"libm/common/sf_scalbln.c",
-	"libm/common/sf_trunc.c",
-	"libm/common/sf_exp.c",
-	"libm/common/sf_exp2.c",
-	"libm/common/sf_exp2_data.c",
-	"libm/common/sf_log.c",
-	"libm/common/sf_log_data.c",
-	"libm/common/sf_log2.c",
-	"libm/common/sf_log2_data.c",
-	"libm/common/sf_pow_log2_data.c",
-	"libm/common/sf_pow.c",
-
-	"libm/common/s_finite.c",
-	"libm/common/s_copysign.c",
-	"libm/common/s_modf.c",
-	"libm/common/s_scalbn.c",
-	"libm/common/s_cbrt.c",
-	"libm/common/s_exp10.c",
-	"libm/common/s_expm1.c",
-	"libm/common/s_ilogb.c",
-	"libm/common/s_infinity.c",
-	"libm/common/s_iseqsig.c",
-	"libm/common/s_isinf.c",
-	"libm/common/s_isinfd.c",
-	"libm/common/s_isnan.c",
-	"libm/common/s_isnand.c",
-	"libm/common/s_issignaling.c",
-	"libm/common/s_log1p.c",
-	"libm/common/s_nan.c",
-	"libm/common/s_nextafter.c",
-	"libm/common/s_pow10.c",
-	"libm/common/s_rint.c",
-	"libm/common/s_logb.c",
-	"libm/common/s_log2.c",
-	"libm/common/s_fdim.c",
-	"libm/common/s_fma.c",
-	"libm/common/s_fmax.c",
-	"libm/common/s_fmin.c",
-	"libm/common/s_fpclassify.c",
-	"libm/common/s_getpayload.c",
-	"libm/common/s_lrint.c",
-	"libm/common/s_llrint.c",
-	"libm/common/s_lround.c",
-	"libm/common/s_llround.c",
-	"libm/common/s_nearbyint.c",
-	"libm/common/s_remquo.c",
-	"libm/common/s_round.c",
-	"libm/common/s_scalbln.c",
-	"libm/common/s_signbit.c",
-	"libm/common/s_trunc.c",
-	"libm/common/exp.c",
-	"libm/common/exp2.c",
-	"libm/common/exp_data.c",
-	"libm/common/math_err_with_errno.c",
-	"libm/common/math_err_uflow.c",
-	"libm/common/math_err_oflow.c",
-	"libm/common/math_err_divzero.c",
-	"libm/common/math_err_invalid.c",
-	"libm/common/math_err_may_uflow.c",
-	"libm/common/math_err_check_uflow.c",
-	"libm/common/math_err_check_oflow.c",
-	"libm/common/math_errf_divzerof.c",
-	"libm/common/math_errf_invalidf.c",
-	"libm/common/math_errf_may_uflowf.c",
-	"libm/common/math_errf_oflowf.c",
-	"libm/common/math_errf_uflowf.c",
-	"libm/common/math_errf_with_errnof.c",
-	"libm/common/math_inexact.c",
-	"libm/common/math_inexactf.c",
-	"libm/common/log.c",
-	"libm/common/log_data.c",
-	"libm/common/log2.c",
-	"libm/common/log2_data.c",
-	"libm/common/pow.c",
-	"libm/common/pow_log_data.c",
-
-	"libm/math/k_cos.c",
-	"libm/math/k_rem_pio2.c",
-	"libm/math/k_sin.c",
-	"libm/math/k_tan.c",
-	"libm/math/kf_cos.c",
-	"libm/math/kf_rem_pio2.c",
-	"libm/math/kf_sin.c",
-	"libm/math/kf_tan.c",
-	"libm/math/s_acos.c",
-	"libm/math/s_acosh.c",
-	"libm/math/s_asin.c",
-	"libm/math/s_asinh.c",
-	"libm/math/s_atan.c",
-	"libm/math/s_atan2.c",
-	"libm/math/s_atanh.c",
-	"libm/math/s_ceil.c",
-	"libm/math/s_cos.c",
-	"libm/math/s_cosh.c",
-	"libm/math/s_drem.c",
-	"libm/math/s_erf.c",
-	"libm/math/s_exp.c",
-	"libm/math/s_exp2.c",
-	"libm/math/s_fabs.c",
-	"libm/math/s_floor.c",
-	"libm/math/s_fmod.c",
-	"libm/math/s_frexp.c",
-	"libm/math/s_gamma.c",
-	"libm/math/s_hypot.c",
-	"libm/math/s_j0.c",
-	"libm/math/s_j1.c",
-	"libm/math/s_jn.c",
-	"libm/math/s_lgamma.c",
-	"libm/math/s_log.c",
-	"libm/math/s_log10.c",
-	"libm/math/s_pow.c",
-	"libm/math/s_rem_pio2.c",
-	"libm/math/s_remainder.c",
-	"libm/math/s_scalb.c",
-	"libm/math/s_signif.c",
-	"libm/math/s_sin.c",
-	"libm/math/s_sincos.c",
-	"libm/math/s_sinh.c",
-	"libm/math/s_sqrt.c",
-	"libm/math/s_tan.c",
-	"libm/math/s_tanh.c",
-	"libm/math/s_tgamma.c",
-	"libm/math/sf_acos.c",
-	"libm/math/sf_acosh.c",
-	"libm/math/sf_asin.c",
-	"libm/math/sf_asinh.c",
-	"libm/math/sf_atan.c",
-	"libm/math/sf_atan2.c",
-	"libm/math/sf_atanh.c",
-	"libm/math/sf_ceil.c",
-	"libm/math/sf_cos.c",
-	"libm/math/sf_cosh.c",
-	"libm/math/sf_drem.c",
-	"libm/math/sf_erf.c",
-	"libm/math/sf_exp.c",
-	"libm/math/sf_exp2.c",
-	"libm/math/sf_fabs.c",
-	"libm/math/sf_floor.c",
-	"libm/math/sf_fmod.c",
-	"libm/math/sf_frexp.c",
-	"libm/math/sf_gamma.c",
-	"libm/math/sf_hypot.c",
-	"libm/math/sf_j0.c",
-	"libm/math/sf_j1.c",
-	"libm/math/sf_jn.c",
-	"libm/math/sf_lgamma.c",
-	"libm/math/sf_log.c",
-	"libm/math/sf_log10.c",
-	"libm/math/sf_log2.c",
-	"libm/math/sf_pow.c",
-	"libm/math/sf_rem_pio2.c",
-	"libm/math/sf_remainder.c",
-	"libm/math/sf_scalb.c",
-	"libm/math/sf_signif.c",
-	"libm/math/sf_sin.c",
-	"libm/math/sf_sincos.c",
-	"libm/math/sf_sinh.c",
-	"libm/math/sf_sqrt.c",
-	"libm/math/sf_tan.c",
-	"libm/math/sf_tanh.c",
-	"libm/math/sf_tgamma.c",
-	"libm/math/sr_lgamma.c",
-	"libm/math/srf_lgamma.c",
-}

builder/robustio_other.go

@@ -1,9 +0,0 @@
-//go:build !windows
-
-package builder
-
-import "os"
-
-func robustRename(oldpath, newpath string) error {
-	return os.Rename(oldpath, newpath)
-}

builder/robustio_windows.go

@@ -1,44 +0,0 @@
-package builder
-
-import (
-	"errors"
-	"math/rand"
-	"os"
-	"syscall"
-	"time"
-)
-
-const robustRenameTimeout = 2 * time.Second
-
-func robustRename(oldpath, newpath string) error {
-	var bestErr error
-	start := time.Now()
-	nextSleep := time.Millisecond
-	for {
-		err := os.Rename(oldpath, newpath)
-		if err == nil || !isEphemeralRenameError(err) {
-			return err
-		}
-		if bestErr == nil {
-			bestErr = err
-		}
-		if d := time.Since(start) + nextSleep; d >= robustRenameTimeout {
-			return bestErr
-		}
-		time.Sleep(nextSleep)
-		nextSleep += time.Duration(rand.Int63n(int64(nextSleep)))
-	}
-}
-
-func isEphemeralRenameError(err error) bool {
-	var errno syscall.Errno
-	if errors.As(err, &errno) {
-		switch errno {
-		case syscall.Errno(2), // ERROR_FILE_NOT_FOUND
-			syscall.Errno(5),  // ERROR_ACCESS_DENIED
-			syscall.Errno(32): // ERROR_SHARING_VIOLATION
-			return true
-		}
-	}
-	return false
-}

builder/size-report.go

@@ -1,56 +0,0 @@
-package builder
-
-import (
-	_ "embed"
-	"fmt"
-	"html/template"
-	"os"
-)
-
-//go:embed size-report.html
-var sizeReportBase string
-
-func writeSizeReport(sizes *programSize, filename, pkgName string) error {
-	tmpl, err := template.New("report").Parse(sizeReportBase)
-	if err != nil {
-		return err
-	}
-
-	f, err := os.Create(filename)
-	if err != nil {
-		return fmt.Errorf("could not open report file: %w", err)
-	}
-	defer f.Close()
-
-	// Prepare data for the report.
-	type sizeLine struct {
-		Name string
-		Size *packageSize
-	}
-	programData := []sizeLine{}
-	for _, name := range sizes.sortedPackageNames() {
-		pkgSize := sizes.Packages[name]
-		programData = append(programData, sizeLine{
-			Name: name,
-			Size: pkgSize,
-		})
-	}
-	sizeTotal := map[string]uint64{
-		"code":   sizes.Code,
-		"rodata": sizes.ROData,
-		"data":   sizes.Data,
-		"bss":    sizes.BSS,
-		"flash":  sizes.Flash(),
-	}
-
-	// Write the report.
-	err = tmpl.Execute(f, map[string]any{
-		"pkgName":   pkgName,
-		"sizes":     programData,
-		"sizeTotal": sizeTotal,
-	})
-	if err != nil {
-		return fmt.Errorf("could not create report file: %w", err)
-	}
-	return nil
-}

builder/size-report.html

@@ -1,109 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <title>Size Report for {{.pkgName}}</title>
-    <meta charset="utf-8"/>
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">
-    <style>
-
-.table-vertical-border {
-  border-left: calc(var(--bs-border-width) * 2) solid currentcolor;
-}
-
-/* Hover on only the rows that are clickable. */
-.row-package:hover > * {
-  --bs-table-color-state: var(--bs-table-hover-color);
-  --bs-table-bg-state: var(--bs-table-hover-bg);
-}
-
-    </style>
-  </head>
-  <body>
-    <div class="container-xxl">
-      <h1>Size Report for {{.pkgName}}</h1>
-
-      <p>How much space is used by Go packages, C libraries, and other bits to set up the program environment.</p>
-
-      <ul>
-        <li><strong>Code</strong> is the actual program code (machine code instructions).</li>
-        <li><strong>Read-only data</strong> are read-only global variables. On most microcontrollers, these are stored in flash and do not take up any RAM.</li>
-        <li><strong>Data</strong> are writable global variables with a non-zero initializer. On microcontrollers, they are copied from flash to RAM on reset.</li>
-        <li><strong>BSS</strong> are writable global variables that are zero initialized. They do not take up any space in the binary, but do take up RAM. On microcontrollers, this area is zeroed on reset.</li>
-      </ul>
-
-      <p>The binary size consists of code, read-only data, and data. On microcontrollers, this is exactly the size of the firmware image. On other systems, there is some extra overhead: binary metadata (headers of the ELF/MachO/COFF file), debug information, exception tables, symbol names, etc. Using <code>-no-debug</code> strips most of those.</p>
-
-      <h2>Program breakdown</h2>
-
-      <p>You can click on the rows below to see which files contribute to the binary size.</p>
-
-      <div class="table-responsive">
-        <table class="table w-auto">
-          <thead>
-            <tr>
-              <th>Package</th>
-              <th class="table-vertical-border">Code</th>
-              <th>Read-only data</th>
-              <th>Data</th>
-              <th title="zero-initialized data">BSS</th>
-              <th class="table-vertical-border" style="min-width: 16em">Binary size</th>
-            </tr>
-          </thead>
-          <tbody class="table-group-divider">
-            {{range $i, $pkg := .sizes}}
-            <tr class="row-package" data-collapse=".collapse-row-{{$i}}">
-              <td>{{.Name}}</td>
-              <td class="table-vertical-border">{{.Size.Code}}</td>
-              <td>{{.Size.ROData}}</td>
-              <td>{{.Size.Data}}</td>
-              <td>{{.Size.BSS}}</td>
-              <td class="table-vertical-border" style="background: linear-gradient(to right, var(--bs-info-bg-subtle) {{.Size.FlashPercent}}%, var(--bs-table-bg) {{.Size.FlashPercent}}%)">
-                {{.Size.Flash}}
-              </td>
-            </tr>
-            {{range $filename, $sizes := .Size.Sub}}
-            <tr class="table-secondary collapse collapse-row-{{$i}}">
-              <td class="ps-4">
-                {{if eq $filename ""}}
-                  (unknown file)
-                {{else}}
-                  {{$filename}}
-                {{end}}
-              </td>
-              <td class="table-vertical-border">{{$sizes.Code}}</td>
-              <td>{{$sizes.ROData}}</td>
-              <td>{{$sizes.Data}}</td>
-              <td>{{$sizes.BSS}}</td>
-              <td class="table-vertical-border" style="background: linear-gradient(to right, var(--bs-info-bg-subtle) {{$sizes.FlashPercent}}%, var(--bs-table-bg) {{$sizes.FlashPercent}}%)">
-                {{$sizes.Flash}}
-              </td>
-            </tr>
-            {{end}}
-            {{end}}
-          </tbody>
-          <tfoot class="table-group-divider">
-            <tr>
-              <th>Total</th>
-              <td class="table-vertical-border">{{.sizeTotal.code}}</td>
-              <td>{{.sizeTotal.rodata}}</td>
-              <td>{{.sizeTotal.data}}</td>
-              <td>{{.sizeTotal.bss}}</td>
-              <td class="table-vertical-border">{{.sizeTotal.flash}}</td>
-            </tr>
-          </tfoot>
-        </table>
-      </div>
-    </div>
-    <script>
-// Make table rows toggleable to show filenames.
-for (let clickable of document.querySelectorAll('.row-package')) {
-  clickable.addEventListener('click', e => {
-    for (let row of document.querySelectorAll(clickable.dataset.collapse)) {
-      row.classList.toggle('show');
-    }
-  });
-}
-    </script>
-  </body>
-</html>

builder/sizes_test.go

@@ -1,138 +0,0 @@
-package builder
-
-import (
-	"regexp"
-	"runtime"
-	"testing"
-	"time"
-
-	"github.com/tinygo-org/tinygo/compileopts"
-)
-
-var sema = make(chan struct{}, runtime.NumCPU())
-
-type sizeTest struct {
-	target     string
-	path       string
-	codeSize   uint64
-	rodataSize uint64
-	dataSize   uint64
-	bssSize    uint64
-}
-
-// Test whether code and data size is as expected for the given targets.
-// This tests both the logic of loadProgramSize and checks that code size
-// doesn't change unintentionally.
-//
-// If you find that code or data size is reduced, then great! You can reduce the
-// number in this test.
-// If you find that the code or data size is increased, take a look as to why
-// this is. It could be due to an update (LLVM version, Go version, etc) which
-// is fine, but it could also mean that a recent change introduced this size
-// increase. If so, please consider whether this new feature is indeed worth the
-// size increase for all users.
-func TestBinarySize(t *testing.T) {
-	if runtime.GOOS == "linux" && !hasBuiltinTools {
-		// Debian LLVM packages are modified a bit and tend to produce
-		// different machine code. Ideally we'd fix this (with some attributes
-		// or something?), but for now skip it.
-		t.Skip("Skip: using external LLVM version so binary size might differ")
-	}
-
-	// This is a small number of very diverse targets that we want to test.
-	tests := []sizeTest{
-		// microcontrollers
-		{"hifive1b", "examples/echo", 4313, 323, 0, 2260},
-		{"microbit", "examples/serial", 2838, 382, 8, 2256},
-		{"wioterminal", "examples/pininterrupt", 8027, 1665, 132, 7488},
-
-		// TODO: also check wasm. Right now this is difficult, because
-		// wasm binaries are run through wasm-opt and therefore the
-		// output varies by binaryen version.
-	}
-	for _, tc := range tests {
-		t.Run(tc.target+"/"+tc.path, func(t *testing.T) {
-			t.Parallel()
-
-			// Build the binary.
-			result := buildBinary(t, tc.target, tc.path)
-
-			// Check whether the size of the binary matches the expected size.
-			sizes, err := loadProgramSize(result.Executable, nil)
-			if err != nil {
-				t.Fatal("could not read program size:", err)
-			}
-			if sizes.Code != tc.codeSize || sizes.ROData != tc.rodataSize || sizes.Data != tc.dataSize || sizes.BSS != tc.bssSize {
-				t.Errorf("Unexpected code size when compiling: -target=%s %s", tc.target, tc.path)
-				t.Errorf("            code rodata   data    bss")
-				t.Errorf("expected: %6d %6d %6d %6d", tc.codeSize, tc.rodataSize, tc.dataSize, tc.bssSize)
-				t.Errorf("actual:   %6d %6d %6d %6d", sizes.Code, sizes.ROData, sizes.Data, sizes.BSS)
-			}
-		})
-	}
-}
-
-// Check that the -size=full flag attributes binary size to the correct package
-// without filesystem paths and things like that.
-func TestSizeFull(t *testing.T) {
-	tests := []string{
-		"microbit",
-		"wasip1",
-	}
-
-	libMatch := regexp.MustCompile(`^C [a-z -]+$`) // example: "C interrupt vector"
-	pkgMatch := regexp.MustCompile(`^[a-z/]+$`)    // example: "internal/task"
-
-	for _, target := range tests {
-		t.Run(target, func(t *testing.T) {
-			t.Parallel()
-
-			// Build the binary.
-			result := buildBinary(t, target, "examples/serial")
-
-			// Check whether the binary doesn't contain any unexpected package
-			// names.
-			sizes, err := loadProgramSize(result.Executable, result.PackagePathMap)
-			if err != nil {
-				t.Fatal("could not read program size:", err)
-			}
-			for _, pkg := range sizes.sortedPackageNames() {
-				if pkg == "(padding)" || pkg == "(unknown)" || pkg == "Go types" {
-					// TODO: correctly attribute all unknown binary size.
-					continue
-				}
-				if libMatch.MatchString(pkg) {
-					continue
-				}
-				if pkgMatch.MatchString(pkg) {
-					continue
-				}
-				t.Error("unexpected package name in size output:", pkg)
-			}
-		})
-	}
-}
-
-func buildBinary(t *testing.T, targetString, pkgName string) BuildResult {
-	options := compileopts.Options{
-		Target:        targetString,
-		Opt:           "z",
-		Semaphore:     sema,
-		InterpTimeout: 60 * time.Second,
-		Debug:         true,
-		VerifyIR:      true,
-	}
-	target, err := compileopts.LoadTarget(&options)
-	if err != nil {
-		t.Fatal("could not load target:", err)
-	}
-	config := &compileopts.Config{
-		Options: &options,
-		Target:  target,
-	}
-	result, err := Build(pkgName, "", t.TempDir(), config)
-	if err != nil {
-		t.Fatal("could not build:", err)
-	}
-	return result
-}

builder/tools-builtin.go

@@ -1,51 +0,0 @@
-//go:build byollvm
-
-package builder
-
-import (
-	"errors"
-	"unsafe"
-)
-
-/*
-#cgo CXXFLAGS: -fno-rtti
-#include <stdbool.h>
-#include <stdlib.h>
-bool tinygo_clang_driver(int argc, char **argv);
-bool tinygo_link(int argc, char **argv);
-*/
-import "C"
-
-const hasBuiltinTools = true
-
-// RunTool runs the given tool (such as clang).
-//
-// This version actually runs the tools because TinyGo was compiled while
-// linking statically with LLVM (with the byollvm build tag).
-func RunTool(tool string, args ...string) error {
-	args = append([]string{tool}, args...)
-
-	var cflag *C.char
-	buf := C.calloc(C.size_t(len(args)), C.size_t(unsafe.Sizeof(cflag)))
-	defer C.free(buf)
-	cflags := unsafe.Slice((**C.char)(buf), len(args))
-	for i, flag := range args {
-		cflag := C.CString(flag)
-		cflags[i] = cflag
-		defer C.free(unsafe.Pointer(cflag))
-	}
-
-	var ok C.bool
-	switch tool {
-	case "clang":
-		ok = C.tinygo_clang_driver(C.int(len(args)), (**C.char)(buf))
-	case "ld.lld", "wasm-ld":
-		ok = C.tinygo_link(C.int(len(args)), (**C.char)(buf))
-	default:
-		return errors.New("unknown tool: " + tool)
-	}
-	if !ok {
-		return errors.New("failed to run tool: " + tool)
-	}
-	return nil
-}

builder/tools-external.go

@@ -1,15 +0,0 @@
-//go:build !byollvm
-
-package builder
-
-import "errors"
-
-const hasBuiltinTools = false
-
-// RunTool runs the given tool (such as clang).
-//
-// This version doesn't actually run the tool: TinyGo has not been compiled by
-// statically linking to LLVM.
-func RunTool(tool string, args ...string) error {
-	return errors.New("cannot run tool: " + tool)
-}

builder/tools.go

@@ -1,197 +0,0 @@
-package builder
-
-import (
-	"bytes"
-	"fmt"
-	"go/scanner"
-	"go/token"
-	"os"
-	"os/exec"
-	"regexp"
-	"strconv"
-	"strings"
-)
-
-// runCCompiler invokes a C compiler with the given arguments.
-func runCCompiler(flags ...string) error {
-	// Find the right command to run Clang.
-	var cmd *exec.Cmd
-	if hasBuiltinTools {
-		// Compile this with the internal Clang compiler.
-		cmd = exec.Command(os.Args[0], append([]string{"clang"}, flags...)...)
-	} else {
-		// Compile this with an external invocation of the Clang compiler.
-		name, err := LookupCommand("clang")
-		if err != nil {
-			return err
-		}
-		cmd = exec.Command(name, flags...)
-	}
-
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = os.Stderr
-
-	// Make sure the command doesn't use any environmental variables.
-	// Most importantly, it should not use C_INCLUDE_PATH and the like.
-	cmd.Env = []string{}
-
-	// Let some environment variables through. One important one is the
-	// temporary directory, especially on Windows it looks like Clang breaks if
-	// the temporary directory has not been set.
-	// See: https://github.com/tinygo-org/tinygo/issues/4557
-	// Also see: https://github.com/llvm/llvm-project/blob/release/18.x/llvm/lib/Support/Unix/Path.inc#L1435
-	for _, env := range os.Environ() {
-		// We could parse the key and look it up in a map, but since there are
-		// only a few keys iterating through them is easier and maybe even
-		// faster.
-		for _, prefix := range []string{"TMPDIR=", "TMP=", "TEMP=", "TEMPDIR="} {
-			if strings.HasPrefix(env, prefix) {
-				cmd.Env = append(cmd.Env, env)
-				break
-			}
-		}
-	}
-
-	return cmd.Run()
-}
-
-// link invokes a linker with the given name and flags.
-func link(linker string, flags ...string) error {
-	// We only support LLD.
-	if linker != "ld.lld" && linker != "wasm-ld" {
-		return fmt.Errorf("unexpected: linker %s should be ld.lld or wasm-ld", linker)
-	}
-
-	var cmd *exec.Cmd
-	if hasBuiltinTools {
-		cmd = exec.Command(os.Args[0], append([]string{linker}, flags...)...)
-	} else {
-		name, err := LookupCommand(linker)
-		if err != nil {
-			return err
-		}
-		cmd = exec.Command(name, flags...)
-	}
-	var buf bytes.Buffer
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = &buf
-	err := cmd.Run()
-	if err != nil {
-		if buf.Len() == 0 {
-			// The linker failed but there was no output.
-			// Therefore, show some output anyway.
-			return fmt.Errorf("failed to run linker: %w", err)
-		}
-		return parseLLDErrors(buf.String())
-	}
-	return nil
-}
-
-// Split LLD errors into individual erros (including errors that continue on the
-// next line, using a ">>>" prefix). If possible, replace the raw errors with a
-// more user-friendly version (and one that's more in a Go style).
-func parseLLDErrors(text string) error {
-	// Split linker output in separate error messages.
-	lines := strings.Split(text, "\n")
-	var errorLines []string // one or more line (belonging to a single error) per line
-	for _, line := range lines {
-		line = strings.TrimRight(line, "\r") // needed for Windows
-		if len(errorLines) != 0 && strings.HasPrefix(line, ">>> ") {
-			errorLines[len(errorLines)-1] += "\n" + line
-			continue
-		}
-		if line == "" {
-			continue
-		}
-		errorLines = append(errorLines, line)
-	}
-
-	// Parse error messages.
-	var linkErrors []error
-	var flashOverflow, ramOverflow uint64
-	for _, message := range errorLines {
-		parsedError := false
-
-		// Check for undefined symbols.
-		// This can happen in some cases like with CGo and //go:linkname tricker.
-		if matches := regexp.MustCompile(`^ld.lld(-[0-9]+)?: error: undefined symbol: (.*)\n`).FindStringSubmatch(message); matches != nil {
-			symbolName := matches[2]
-			for line := range strings.SplitSeq(message, "\n") {
-				matches := regexp.MustCompile(`referenced by .* \(((.*):([0-9]+))\)`).FindStringSubmatch(line)
-				if matches != nil {
-					parsedError = true
-					line, _ := strconv.Atoi(matches[3])
-					msg := "linker could not find symbol " + symbolName
-					switch symbolName {
-					case "runtime.alloc":
-						msg = "object allocated on the heap with -gc=none"
-					case "runtime.alloc_noheap":
-						msg = "object allocated on the heap in //go:noheap function"
-					}
-					linkErrors = append(linkErrors, scanner.Error{
-						Pos: token.Position{
-							Filename: matches[2],
-							Line:     line,
-						},
-						Msg: msg,
-					})
-				}
-			}
-		}
-
-		// Check for flash/RAM overflow.
-		if matches := regexp.MustCompile(`^ld.lld(-[0-9]+)?: error: section '(.*?)' will not fit in region '(.*?)': overflowed by ([0-9]+) bytes$`).FindStringSubmatch(message); matches != nil {
-			region := matches[3]
-			n, err := strconv.ParseUint(matches[4], 10, 64)
-			if err != nil {
-				// Should not happen at all (unless it overflows an uint64 for some reason).
-				continue
-			}
-
-			// Check which area overflowed.
-			// Some chips use differently named memory areas, but these are by
-			// far the most common.
-			switch region {
-			case "FLASH_TEXT":
-				if n > flashOverflow {
-					flashOverflow = n
-				}
-				parsedError = true
-			case "RAM":
-				if n > ramOverflow {
-					ramOverflow = n
-				}
-				parsedError = true
-			}
-		}
-
-		// If we couldn't parse the linker error: show the error as-is to
-		// the user.
-		if !parsedError {
-			linkErrors = append(linkErrors, LinkerError{message})
-		}
-	}
-
-	if flashOverflow > 0 {
-		linkErrors = append(linkErrors, LinkerError{
-			Msg: fmt.Sprintf("program too large for this chip (flash overflowed by %d bytes)\n\toptimization guide: https://tinygo.org/docs/guides/optimizing-binaries/", flashOverflow),
-		})
-	}
-	if ramOverflow > 0 {
-		linkErrors = append(linkErrors, LinkerError{
-			Msg: fmt.Sprintf("program uses too much static RAM on this chip (RAM overflowed by %d bytes)", ramOverflow),
-		})
-	}
-
-	return newMultiError(linkErrors, "")
-}
-
-// LLD linker error that could not be parsed or doesn't refer to a source
-// location.
-type LinkerError struct {
-	Msg string
-}
-
-func (e LinkerError) Error() string {
-	return e.Msg
-}

builder/wasilibc.go

@@ -1,284 +0,0 @@
-package builder
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-var libWasiLibc = Library{
-	name: "wasi-libc",
-	makeHeaders: func(target, includeDir string) error {
-		bits := filepath.Join(includeDir, "bits")
-		err := os.Mkdir(bits, 0777)
-		if err != nil {
-			return err
-		}
-
-		muslDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib", "wasi-libc/libc-top-half/musl")
-		err = buildMuslAllTypes("wasm32", muslDir, bits)
-		if err != nil {
-			return err
-		}
-
-		// See MUSL_OMIT_HEADERS in the Makefile.
-		omitHeaders := map[string]struct{}{
-			"syslog.h":   {},
-			"wait.h":     {},
-			"ucontext.h": {},
-			"paths.h":    {},
-			"utmp.h":     {},
-			"utmpx.h":    {},
-			"lastlog.h":  {},
-			"elf.h":      {},
-			"link.h":     {},
-			"pwd.h":      {},
-			"shadow.h":   {},
-			"grp.h":      {},
-			"mntent.h":   {},
-			"netdb.h":    {},
-			"resolv.h":   {},
-			"pty.h":      {},
-			"dlfcn.h":    {},
-			"setjmp.h":   {},
-			"ulimit.h":   {},
-			"wordexp.h":  {},
-			"spawn.h":    {},
-			"termios.h":  {},
-			"libintl.h":  {},
-			"aio.h":      {},
-
-			"stdarg.h": {},
-			"stddef.h": {},
-
-			"pthread.h": {},
-		}
-
-		for _, glob := range [][2]string{
-			{"libc-bottom-half/headers/public/*.h", ""},
-			{"libc-bottom-half/headers/public/wasi/*.h", "wasi"},
-			{"libc-top-half/musl/arch/wasm32/bits/*.h", "bits"},
-			{"libc-top-half/musl/include/*.h", ""},
-			{"libc-top-half/musl/include/netinet/*.h", "netinet"},
-			{"libc-top-half/musl/include/sys/*.h", "sys"},
-		} {
-			matches, _ := filepath.Glob(filepath.Join(goenv.Get("TINYGOROOT"), "lib/wasi-libc", glob[0]))
-			outDir := filepath.Join(includeDir, glob[1])
-			os.MkdirAll(outDir, 0o777)
-			for _, match := range matches {
-				name := filepath.Base(match)
-				if _, ok := omitHeaders[name]; ok {
-					continue
-				}
-				data, err := os.ReadFile(match)
-				if err != nil {
-					return err
-				}
-				err = os.WriteFile(filepath.Join(outDir, name), data, 0o666)
-				if err != nil {
-					return err
-				}
-			}
-		}
-
-		return nil
-	},
-	cflags: func(target, headerPath string) []string {
-		libcDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib/wasi-libc")
-		return []string{
-			"-Werror",
-			"-Wall",
-			"-std=gnu11",
-			"-nostdlibinc",
-			"-mnontrapping-fptoint", "-msign-ext", "-mbulk-memory",
-			"-Wno-null-pointer-arithmetic", "-Wno-unused-parameter", "-Wno-sign-compare", "-Wno-unused-variable", "-Wno-unused-function", "-Wno-ignored-attributes", "-Wno-missing-braces", "-Wno-ignored-pragmas", "-Wno-unused-but-set-variable", "-Wno-unknown-warning-option",
-			"-Wno-parentheses", "-Wno-shift-op-parentheses", "-Wno-bitwise-op-parentheses", "-Wno-logical-op-parentheses", "-Wno-string-plus-int", "-Wno-dangling-else", "-Wno-unknown-pragmas",
-			"-DNDEBUG",
-			"-D__wasilibc_printscan_no_long_double",
-			"-D__wasilibc_printscan_full_support_option=\"long double support is disabled\"",
-			"-DBULK_MEMORY_THRESHOLD=32", // default threshold in wasi-libc
-			"-isystem", headerPath,
-			"-I" + libcDir + "/libc-top-half/musl/src/include",
-			"-I" + libcDir + "/libc-top-half/musl/src/internal",
-			"-I" + libcDir + "/libc-top-half/musl/arch/wasm32",
-			"-I" + libcDir + "/libc-top-half/musl/arch/generic",
-			"-I" + libcDir + "/libc-top-half/headers/private",
-		}
-	},
-	cflagsForFile: func(path string) []string {
-		if strings.HasPrefix(path, "libc-bottom-half"+string(os.PathSeparator)) {
-			libcDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib/wasi-libc")
-			return []string{
-				"-I" + libcDir + "/libc-bottom-half/headers/private",
-				"-I" + libcDir + "/libc-bottom-half/cloudlibc/src/include",
-				"-I" + libcDir + "/libc-bottom-half/cloudlibc/src",
-			}
-		}
-		return nil
-	},
-	sourceDir: func() string { return filepath.Join(goenv.Get("TINYGOROOT"), "lib/wasi-libc") },
-	librarySources: func(target string, libcNeedsMalloc bool) ([]string, error) {
-		type filePattern struct {
-			glob    string
-			exclude []string
-		}
-
-		// See: LIBC_TOP_HALF_MUSL_SOURCES in the Makefile
-		globs := []filePattern{
-			// Top half: mostly musl sources.
-			{glob: "libc-top-half/sources/*.c"},
-			{glob: "libc-top-half/musl/src/conf/*.c"},
-			{glob: "libc-top-half/musl/src/internal/*.c", exclude: []string{
-				"procfdname.c", "syscall.c", "syscall_ret.c", "vdso.c", "version.c",
-			}},
-			{glob: "libc-top-half/musl/src/locale/*.c", exclude: []string{
-				"dcngettext.c", "textdomain.c", "bind_textdomain_codeset.c"}},
-			{glob: "libc-top-half/musl/src/math/*.c", exclude: []string{
-				"__signbit.c", "__signbitf.c", "__signbitl.c",
-				"__fpclassify.c", "__fpclassifyf.c", "__fpclassifyl.c",
-				"ceilf.c", "ceil.c",
-				"floorf.c", "floor.c",
-				"truncf.c", "trunc.c",
-				"rintf.c", "rint.c",
-				"nearbyintf.c", "nearbyint.c",
-				"sqrtf.c", "sqrt.c",
-				"fabsf.c", "fabs.c",
-				"copysignf.c", "copysign.c",
-				"fminf.c", "fmaxf.c",
-				"fmin.c", "fmax.c,",
-			}},
-			{glob: "libc-top-half/musl/src/multibyte/*.c"},
-			{glob: "libc-top-half/musl/src/stdio/*.c", exclude: []string{
-				"vfwscanf.c", "vfwprintf.c", // long double is unsupported
-				"__lockfile.c", "flockfile.c", "funlockfile.c", "ftrylockfile.c",
-				"rename.c",
-				"tmpnam.c", "tmpfile.c", "tempnam.c",
-				"popen.c", "pclose.c",
-				"remove.c",
-				"gets.c"}},
-			{glob: "libc-top-half/musl/src/stdlib/*.c"},
-			{glob: "libc-top-half/musl/src/string/*.c", exclude: []string{
-				"strsignal.c"}},
-
-			// Bottom half: connect top half to WASI equivalents.
-			{glob: "libc-bottom-half/cloudlibc/src/libc/*/*.c"},
-			{glob: "libc-bottom-half/cloudlibc/src/libc/sys/*/*.c"},
-			{glob: "libc-bottom-half/sources/*.c"},
-		}
-
-		// We're using the Boehm GC, so we need a heap implementation in the libc.
-		if libcNeedsMalloc {
-			globs = append(globs, filePattern{glob: "dlmalloc/src/dlmalloc.c"})
-		}
-
-		// See: LIBC_TOP_HALF_MUSL_SOURCES in the Makefile
-		sources := []string{
-			"libc-top-half/musl/src/misc/a64l.c",
-			"libc-top-half/musl/src/misc/basename.c",
-			"libc-top-half/musl/src/misc/dirname.c",
-			"libc-top-half/musl/src/misc/ffs.c",
-			"libc-top-half/musl/src/misc/ffsl.c",
-			"libc-top-half/musl/src/misc/ffsll.c",
-			"libc-top-half/musl/src/misc/fmtmsg.c",
-			"libc-top-half/musl/src/misc/getdomainname.c",
-			"libc-top-half/musl/src/misc/gethostid.c",
-			"libc-top-half/musl/src/misc/getopt.c",
-			"libc-top-half/musl/src/misc/getopt_long.c",
-			"libc-top-half/musl/src/misc/getsubopt.c",
-			"libc-top-half/musl/src/misc/uname.c",
-			"libc-top-half/musl/src/misc/nftw.c",
-			"libc-top-half/musl/src/errno/strerror.c",
-			"libc-top-half/musl/src/network/htonl.c",
-			"libc-top-half/musl/src/network/htons.c",
-			"libc-top-half/musl/src/network/ntohl.c",
-			"libc-top-half/musl/src/network/ntohs.c",
-			"libc-top-half/musl/src/network/inet_ntop.c",
-			"libc-top-half/musl/src/network/inet_pton.c",
-			"libc-top-half/musl/src/network/inet_aton.c",
-			"libc-top-half/musl/src/network/in6addr_any.c",
-			"libc-top-half/musl/src/network/in6addr_loopback.c",
-			"libc-top-half/musl/src/fenv/fenv.c",
-			"libc-top-half/musl/src/fenv/fesetround.c",
-			"libc-top-half/musl/src/fenv/feupdateenv.c",
-			"libc-top-half/musl/src/fenv/fesetexceptflag.c",
-			"libc-top-half/musl/src/fenv/fegetexceptflag.c",
-			"libc-top-half/musl/src/fenv/feholdexcept.c",
-			"libc-top-half/musl/src/exit/exit.c",
-			"libc-top-half/musl/src/exit/atexit.c",
-			"libc-top-half/musl/src/exit/assert.c",
-			"libc-top-half/musl/src/exit/quick_exit.c",
-			"libc-top-half/musl/src/exit/at_quick_exit.c",
-			"libc-top-half/musl/src/time/strftime.c",
-			"libc-top-half/musl/src/time/asctime.c",
-			"libc-top-half/musl/src/time/asctime_r.c",
-			"libc-top-half/musl/src/time/ctime.c",
-			"libc-top-half/musl/src/time/ctime_r.c",
-			"libc-top-half/musl/src/time/wcsftime.c",
-			"libc-top-half/musl/src/time/strptime.c",
-			"libc-top-half/musl/src/time/difftime.c",
-			"libc-top-half/musl/src/time/timegm.c",
-			"libc-top-half/musl/src/time/ftime.c",
-			"libc-top-half/musl/src/time/gmtime.c",
-			"libc-top-half/musl/src/time/gmtime_r.c",
-			"libc-top-half/musl/src/time/timespec_get.c",
-			"libc-top-half/musl/src/time/getdate.c",
-			"libc-top-half/musl/src/time/localtime.c",
-			"libc-top-half/musl/src/time/localtime_r.c",
-			"libc-top-half/musl/src/time/mktime.c",
-			"libc-top-half/musl/src/time/__tm_to_secs.c",
-			"libc-top-half/musl/src/time/__month_to_secs.c",
-			"libc-top-half/musl/src/time/__secs_to_tm.c",
-			"libc-top-half/musl/src/time/__year_to_secs.c",
-			"libc-top-half/musl/src/time/__tz.c",
-			"libc-top-half/musl/src/fcntl/creat.c",
-			"libc-top-half/musl/src/dirent/alphasort.c",
-			"libc-top-half/musl/src/dirent/versionsort.c",
-			"libc-top-half/musl/src/env/__stack_chk_fail.c",
-			"libc-top-half/musl/src/env/clearenv.c",
-			"libc-top-half/musl/src/env/getenv.c",
-			"libc-top-half/musl/src/env/putenv.c",
-			"libc-top-half/musl/src/env/setenv.c",
-			"libc-top-half/musl/src/env/unsetenv.c",
-			"libc-top-half/musl/src/unistd/posix_close.c",
-			"libc-top-half/musl/src/stat/futimesat.c",
-			"libc-top-half/musl/src/legacy/getpagesize.c",
-			"libc-top-half/musl/src/thread/thrd_sleep.c",
-		}
-
-		basepath := goenv.Get("TINYGOROOT") + "/lib/wasi-libc/"
-		for _, pattern := range globs {
-			matches, err := filepath.Glob(basepath + pattern.glob)
-			if err != nil {
-				// From the documentation:
-				// > Glob ignores file system errors such as I/O errors reading
-				// > directories. The only possible returned error is
-				// > ErrBadPattern, when pattern is malformed.
-				// So the only possible error is when the (statically defined)
-				// pattern is wrong. In other words, a programming bug.
-				return nil, fmt.Errorf("wasi-libc: could not glob source dirs: %w", err)
-			}
-			if len(matches) == 0 {
-				return nil, fmt.Errorf("wasi-libc: did not find any files for pattern %#v", pattern)
-			}
-			excludeSet := map[string]struct{}{}
-			for _, exclude := range pattern.exclude {
-				excludeSet[exclude] = struct{}{}
-			}
-			for _, match := range matches {
-				if _, ok := excludeSet[filepath.Base(match)]; ok {
-					continue
-				}
-				relpath, err := filepath.Rel(basepath, match)
-				if err != nil {
-					// Not sure if this is even possible.
-					return nil, err
-				}
-				sources = append(sources, relpath)
-			}
-		}
-		return sources, nil
-	},
-}

builder/wasmbuiltins.go

@@ -1,83 +0,0 @@
-package builder
-
-import (
-	"os"
-	"path/filepath"
-
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-var libWasmBuiltins = Library{
-	name: "wasmbuiltins",
-	makeHeaders: func(target, includeDir string) error {
-		if err := os.Mkdir(includeDir+"/bits", 0o777); err != nil {
-			return err
-		}
-		f, err := os.Create(includeDir + "/bits/alltypes.h")
-		if err != nil {
-			return err
-		}
-		if _, err := f.Write([]byte(wasmAllTypes)); err != nil {
-			return err
-		}
-		return f.Close()
-	},
-	cflags: func(target, headerPath string) []string {
-		libcDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib/wasi-libc")
-		return []string{
-			"-Werror",
-			"-Wall",
-			"-std=gnu11",
-			"-nostdlibinc",
-			"-mnontrapping-fptoint", // match wasm-unknown (default on in LLVM 20)
-			"-mno-bulk-memory",      // same here
-			"-isystem", libcDir + "/libc-top-half/musl/arch/wasm32",
-			"-isystem", libcDir + "/libc-top-half/musl/arch/generic",
-			"-isystem", libcDir + "/libc-top-half/musl/src/internal",
-			"-isystem", libcDir + "/libc-top-half/musl/src/include",
-			"-isystem", libcDir + "/libc-top-half/musl/include",
-			"-isystem", libcDir + "/libc-bottom-half/headers/public",
-			"-I" + headerPath,
-		}
-	},
-	sourceDir: func() string { return filepath.Join(goenv.Get("TINYGOROOT"), "lib/wasi-libc") },
-	librarySources: func(target string, _ bool) ([]string, error) {
-		return []string{
-			// memory builtins needed for llvm.memcpy.*, llvm.memmove.*, and
-			// llvm.memset.* LLVM intrinsics.
-			"libc-top-half/musl/src/string/memcpy.c",
-			"libc-top-half/musl/src/string/memmove.c",
-			"libc-top-half/musl/src/string/memset.c",
-
-			// exp, exp2, and log are needed for LLVM math builtin functions
-			// like llvm.exp.*.
-			"libc-top-half/musl/src/math/__math_divzero.c",
-			"libc-top-half/musl/src/math/__math_invalid.c",
-			"libc-top-half/musl/src/math/__math_oflow.c",
-			"libc-top-half/musl/src/math/__math_uflow.c",
-			"libc-top-half/musl/src/math/__math_xflow.c",
-			"libc-top-half/musl/src/math/exp.c",
-			"libc-top-half/musl/src/math/exp_data.c",
-			"libc-top-half/musl/src/math/exp2.c",
-			"libc-top-half/musl/src/math/log.c",
-			"libc-top-half/musl/src/math/log_data.c",
-		}, nil
-	},
-}
-
-// alltypes.h for wasm-libc, using the types as defined inside Clang.
-const wasmAllTypes = `
-typedef __SIZE_TYPE__    size_t;
-typedef __INT8_TYPE__    int8_t;
-typedef __INT16_TYPE__   int16_t;
-typedef __INT32_TYPE__   int32_t;
-typedef __INT64_TYPE__   int64_t;
-typedef __UINT8_TYPE__   uint8_t;
-typedef __UINT16_TYPE__  uint16_t;
-typedef __UINT32_TYPE__  uint32_t;
-typedef __UINT64_TYPE__  uint64_t;
-typedef __UINTPTR_TYPE__ uintptr_t;
-
-// This type is used internally in wasi-libc.
-typedef double double_t;
-`

builtins.go

@@ -0,0 +1,294 @@
+package main
+
+import (
+	"errors"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/blakesmith/ar"
+)
+
+// These are the GENERIC_SOURCES according to CMakeList.txt.
+var genericBuiltins = []string{
+	"absvdi2.c",
+	"absvsi2.c",
+	"absvti2.c",
+	"adddf3.c",
+	"addsf3.c",
+	"addtf3.c",
+	"addvdi3.c",
+	"addvsi3.c",
+	"addvti3.c",
+	"apple_versioning.c",
+	"ashldi3.c",
+	"ashlti3.c",
+	"ashrdi3.c",
+	"ashrti3.c",
+	"bswapdi2.c",
+	"bswapsi2.c",
+	"clzdi2.c",
+	"clzsi2.c",
+	"clzti2.c",
+	"cmpdi2.c",
+	"cmpti2.c",
+	"comparedf2.c",
+	"comparesf2.c",
+	"ctzdi2.c",
+	"ctzsi2.c",
+	"ctzti2.c",
+	"divdc3.c",
+	"divdf3.c",
+	"divdi3.c",
+	"divmoddi4.c",
+	"divmodsi4.c",
+	"divsc3.c",
+	"divsf3.c",
+	"divsi3.c",
+	"divtc3.c",
+	"divti3.c",
+	"divtf3.c",
+	"extendsfdf2.c",
+	"extendhfsf2.c",
+	"ffsdi2.c",
+	"ffssi2.c",
+	"ffsti2.c",
+	"fixdfdi.c",
+	"fixdfsi.c",
+	"fixdfti.c",
+	"fixsfdi.c",
+	"fixsfsi.c",
+	"fixsfti.c",
+	"fixunsdfdi.c",
+	"fixunsdfsi.c",
+	"fixunsdfti.c",
+	"fixunssfdi.c",
+	"fixunssfsi.c",
+	"fixunssfti.c",
+	"floatdidf.c",
+	"floatdisf.c",
+	"floatsidf.c",
+	"floatsisf.c",
+	"floattidf.c",
+	"floattisf.c",
+	"floatundidf.c",
+	"floatundisf.c",
+	"floatunsidf.c",
+	"floatunsisf.c",
+	"floatuntidf.c",
+	"floatuntisf.c",
+	//"int_util.c",
+	"lshrdi3.c",
+	"lshrti3.c",
+	"moddi3.c",
+	"modsi3.c",
+	"modti3.c",
+	"muldc3.c",
+	"muldf3.c",
+	"muldi3.c",
+	"mulodi4.c",
+	"mulosi4.c",
+	"muloti4.c",
+	"mulsc3.c",
+	"mulsf3.c",
+	"multi3.c",
+	"multf3.c",
+	"mulvdi3.c",
+	"mulvsi3.c",
+	"mulvti3.c",
+	"negdf2.c",
+	"negdi2.c",
+	"negsf2.c",
+	"negti2.c",
+	"negvdi2.c",
+	"negvsi2.c",
+	"negvti2.c",
+	"os_version_check.c",
+	"paritydi2.c",
+	"paritysi2.c",
+	"parityti2.c",
+	"popcountdi2.c",
+	"popcountsi2.c",
+	"popcountti2.c",
+	"powidf2.c",
+	"powisf2.c",
+	"powitf2.c",
+	"subdf3.c",
+	"subsf3.c",
+	"subvdi3.c",
+	"subvsi3.c",
+	"subvti3.c",
+	"subtf3.c",
+	"trampoline_setup.c",
+	"truncdfhf2.c",
+	"truncdfsf2.c",
+	"truncsfhf2.c",
+	"ucmpdi2.c",
+	"ucmpti2.c",
+	"udivdi3.c",
+	"udivmoddi4.c",
+	"udivmodsi4.c",
+	"udivmodti4.c",
+	"udivsi3.c",
+	"udivti3.c",
+	"umoddi3.c",
+	"umodsi3.c",
+	"umodti3.c",
+}
+
+var aeabiBuiltins = []string{
+	"arm/aeabi_cdcmp.S",
+	"arm/aeabi_cdcmpeq_check_nan.c",
+	"arm/aeabi_cfcmp.S",
+	"arm/aeabi_cfcmpeq_check_nan.c",
+	"arm/aeabi_dcmp.S",
+	"arm/aeabi_div0.c",
+	"arm/aeabi_drsub.c",
+	"arm/aeabi_fcmp.S",
+	"arm/aeabi_frsub.c",
+	"arm/aeabi_idivmod.S",
+	"arm/aeabi_ldivmod.S",
+	"arm/aeabi_memcmp.S",
+	"arm/aeabi_memcpy.S",
+	"arm/aeabi_memmove.S",
+	"arm/aeabi_memset.S",
+	"arm/aeabi_uidivmod.S",
+	"arm/aeabi_uldivmod.S",
+}
+
+func builtinFiles(target string) []string {
+	builtins := append([]string{}, genericBuiltins...) // copy genericBuiltins
+	if strings.HasPrefix(target, "arm") {
+		builtins = append(builtins, aeabiBuiltins...)
+	}
+	return builtins
+}
+
+// builtinsDir returns the directory where the sources for compiler-rt are kept.
+func builtinsDir() string {
+	return filepath.Join(sourceDir(), "lib", "compiler-rt", "lib", "builtins")
+}
+
+// Get the builtins archive, possibly generating it as needed.
+func loadBuiltins(target string) (path string, err error) {
+	// Try to load a precompiled compiler-rt library.
+	precompiledPath := filepath.Join(sourceDir(), "pkg", target, "compiler-rt.a")
+	if _, err := os.Stat(precompiledPath); err == nil {
+		// Found a precompiled compiler-rt for this OS/architecture. Return the
+		// path directly.
+		return precompiledPath, nil
+	}
+
+	outfile := "librt-" + target + ".a"
+	builtinsDir := builtinsDir()
+
+	builtins := builtinFiles(target)
+	srcs := make([]string, len(builtins))
+	for i, name := range builtins {
+		srcs[i] = filepath.Join(builtinsDir, name)
+	}
+
+	if path, err := cacheLoad(outfile, commands["clang"][0], srcs); path != "" || err != nil {
+		return path, err
+	}
+
+	var cachepath string
+	err = compileBuiltins(target, func(path string) error {
+		path, err := cacheStore(path, outfile, commands["clang"][0], srcs)
+		cachepath = path
+		return err
+	})
+	return cachepath, err
+}
+
+// compileBuiltins compiles builtins from compiler-rt into a static library.
+// When it succeeds, it will call the callback with the resulting path. The path
+// will be removed after callback returns. If callback returns an error, this is
+// passed through to the return value of this function.
+func compileBuiltins(target string, callback func(path string) error) error {
+	builtinsDir := builtinsDir()
+
+	builtins := builtinFiles(target)
+	srcs := make([]string, len(builtins))
+	for i, name := range builtins {
+		srcs[i] = filepath.Join(builtinsDir, name)
+	}
+
+	dirPrefix := "tinygo-builtins"
+	remapDir := filepath.Join(os.TempDir(), dirPrefix)
+	dir, err := ioutil.TempDir(os.TempDir(), dirPrefix)
+	if err != nil {
+		return err
+	}
+	defer os.RemoveAll(dir)
+
+	// Compile all builtins.
+	// TODO: use builtins optimized for a given target if available.
+	objs := make([]string, 0, len(builtins))
+	for _, name := range builtins {
+		objname := name
+		if strings.LastIndexByte(objname, '/') >= 0 {
+			objname = objname[strings.LastIndexByte(objname, '/'):]
+		}
+		objpath := filepath.Join(dir, objname+".o")
+		objs = append(objs, objpath)
+		srcpath := filepath.Join(builtinsDir, name)
+		// Note: -fdebug-prefix-map is necessary to make the output archive
+		// reproducible. Otherwise the temporary directory is stored in the
+		// archive itself, which varies each run.
+		err := execCommand(commands["clang"], "-c", "-Oz", "-g", "-Werror", "-Wall", "-std=c11", "-fshort-enums", "-nostdlibinc", "-ffunction-sections", "-fdata-sections", "--target="+target, "-fdebug-prefix-map="+dir+"="+remapDir, "-o", objpath, srcpath)
+		if err != nil {
+			return &commandError{"failed to build", srcpath, err}
+		}
+	}
+
+	// Put all builtins in an archive to link as a static library.
+	// Note: this does not create a symbol index, but ld.lld doesn't seem to
+	// care.
+	arpath := filepath.Join(dir, "librt.a")
+	arfile, err := os.Create(arpath)
+	if err != nil {
+		return err
+	}
+	defer arfile.Close()
+	arwriter := ar.NewWriter(arfile)
+	err = arwriter.WriteGlobalHeader()
+	if err != nil {
+		return &os.PathError{"write ar header", arpath, err}
+	}
+	for _, objpath := range objs {
+		name := filepath.Base(objpath)
+		objfile, err := os.Open(objpath)
+		if err != nil {
+			return err
+		}
+		defer objfile.Close()
+		st, err := objfile.Stat()
+		if err != nil {
+			return err
+		}
+		arwriter.WriteHeader(&ar.Header{
+			Name:    name,
+			ModTime: time.Unix(0, 0),
+			Uid:     0,
+			Gid:     0,
+			Mode:    0644,
+			Size:    st.Size(),
+		})
+		n, err := io.Copy(arwriter, objfile)
+		if err != nil {
+			return err
+		}
+		if n != st.Size() {
+			return errors.New("file modified during ar creation: " + arpath)
+		}
+	}
+
+	// Give the caller the resulting file. The callback must copy the file,
+	// because after it returns the temporary directory will be removed.
+	arfile.Close()
+	return callback(arpath)
+}

cgo/cgo_test.go

@@ -1,253 +0,0 @@
-package cgo
-
-import (
-	"bytes"
-	"flag"
-	"fmt"
-	"go/ast"
-	"go/format"
-	"go/parser"
-	"go/scanner"
-	"go/token"
-	"go/types"
-	"os"
-	"path/filepath"
-	"regexp"
-	"runtime"
-	"strings"
-	"testing"
-)
-
-// Pass -update to go test to update the output of the test files.
-var flagUpdate = flag.Bool("update", false, "Update images based on test output.")
-
-// normalizeResult normalizes Go source code that comes out of tests across
-// platforms and Go versions.
-func normalizeResult(t *testing.T, result string) string {
-	result = strings.ReplaceAll(result, "\r\n", "\n")
-
-	// This changed to 'undefined:', in Go 1.20.
-	result = strings.ReplaceAll(result, ": undeclared name:", ": undefined:")
-	// Go 1.20 added a bit more detail
-	result = regexp.MustCompile(`(unknown field z in struct literal).*`).ReplaceAllString(result, "$1")
-
-	return result
-}
-
-func TestCGo(t *testing.T) {
-	var cflags = []string{"--target=armv6m-unknown-unknown-eabi"}
-
-	for _, name := range []string{
-		"basic",
-		"errors",
-		"types",
-		"symbols",
-		"flags",
-		"const",
-	} {
-		t.Run(name, func(t *testing.T) {
-			// Read the AST in memory.
-			path := filepath.Join("testdata", name+".go")
-			fset := token.NewFileSet()
-			f, err := parser.ParseFile(fset, path, nil, parser.ParseComments)
-			if err != nil {
-				t.Fatal("could not parse Go source file:", err)
-			}
-
-			// Process the AST with CGo.
-			cgoFiles, _, _, _, _, cgoErrors := Process([]*ast.File{f}, "testdata", "main", fset, cflags, "linux")
-
-			// Check the AST for type errors.
-			var typecheckErrors []error
-			config := types.Config{
-				Error: func(err error) {
-					typecheckErrors = append(typecheckErrors, err)
-				},
-				Importer: newSimpleImporter(),
-				Sizes:    types.SizesFor("gccgo", "arm"),
-			}
-			_, err = config.Check("", fset, append([]*ast.File{f}, cgoFiles...), nil)
-			if err != nil && len(typecheckErrors) == 0 {
-				// Only report errors when no type errors are found (an
-				// unexpected condition).
-				t.Error(err)
-			}
-
-			// Store the (formatted) output in a buffer. Format it, so it
-			// becomes easier to read (and will hopefully change less with CGo
-			// changes).
-			buf := &bytes.Buffer{}
-			if len(cgoErrors) != 0 {
-				buf.WriteString("// CGo errors:\n")
-				for _, err := range cgoErrors {
-					buf.WriteString(formatDiagnostic(err))
-				}
-				buf.WriteString("\n")
-			}
-			if len(typecheckErrors) != 0 {
-				buf.WriteString("// Type checking errors after CGo processing:\n")
-				for _, err := range typecheckErrors {
-					buf.WriteString(formatDiagnostic(err))
-				}
-				buf.WriteString("\n")
-			}
-			err = format.Node(buf, fset, cgoFiles[0])
-			if err != nil {
-				t.Errorf("could not write out CGo AST: %v", err)
-			}
-			actual := normalizeResult(t, buf.String())
-
-			// Read the file with the expected output, to compare against.
-			outfile := filepath.Join("testdata", name+".out.go")
-			expectedBytes, err := os.ReadFile(outfile)
-			if err != nil {
-				t.Fatalf("could not read expected output: %v", err)
-			}
-			expected := strings.ReplaceAll(string(expectedBytes), "\r\n", "\n")
-
-			// Check whether the output is as expected.
-			if expected != actual {
-				// It is not. Test failed.
-				if *flagUpdate {
-					// Update the file with the expected data.
-					err := os.WriteFile(outfile, []byte(actual), 0666)
-					if err != nil {
-						t.Error("could not write updated output file:", err)
-					}
-					return
-				}
-				t.Errorf("output did not match:\n%s", string(actual))
-			}
-		})
-	}
-}
-
-func Test_cgoPackage_isEquivalentAST(t *testing.T) {
-	fieldA := &ast.Field{Type: &ast.BasicLit{Kind: token.STRING, Value: "a"}}
-	fieldB := &ast.Field{Type: &ast.BasicLit{Kind: token.STRING, Value: "b"}}
-	listOfFieldA := &ast.FieldList{List: []*ast.Field{fieldA}}
-	listOfFieldB := &ast.FieldList{List: []*ast.Field{fieldB}}
-	funcDeclA := &ast.FuncDecl{Name: &ast.Ident{Name: "a"}, Type: &ast.FuncType{Params: &ast.FieldList{}, Results: listOfFieldA}}
-	funcDeclB := &ast.FuncDecl{Name: &ast.Ident{Name: "b"}, Type: &ast.FuncType{Params: &ast.FieldList{}, Results: listOfFieldB}}
-	funcDeclNoResults := &ast.FuncDecl{Name: &ast.Ident{Name: "C"}, Type: &ast.FuncType{Params: &ast.FieldList{}}}
-
-	testCases := []struct {
-		name     string
-		a, b     ast.Node
-		expected bool
-	}{
-		{
-			name:     "both nil",
-			expected: true,
-		},
-		{
-			name:     "not same type",
-			a:        fieldA,
-			b:        &ast.FuncDecl{},
-			expected: false,
-		},
-		{
-			name:     "Field same",
-			a:        fieldA,
-			b:        fieldA,
-			expected: true,
-		},
-		{
-			name:     "Field different",
-			a:        fieldA,
-			b:        fieldB,
-			expected: false,
-		},
-		{
-			name:     "FuncDecl Type Results nil",
-			a:        funcDeclNoResults,
-			b:        funcDeclNoResults,
-			expected: true,
-		},
-		{
-			name:     "FuncDecl Type Results same",
-			a:        funcDeclA,
-			b:        funcDeclA,
-			expected: true,
-		},
-		{
-			name:     "FuncDecl Type Results different",
-			a:        funcDeclA,
-			b:        funcDeclB,
-			expected: false,
-		},
-		{
-			name:     "FuncDecl Type Results a nil",
-			a:        funcDeclNoResults,
-			b:        funcDeclB,
-			expected: false,
-		},
-		{
-			name:     "FuncDecl Type Results b nil",
-			a:        funcDeclA,
-			b:        funcDeclNoResults,
-			expected: false,
-		},
-	}
-
-	for _, tc := range testCases {
-		t.Run(tc.name, func(t *testing.T) {
-			p := &cgoPackage{}
-			if got := p.isEquivalentAST(tc.a, tc.b); tc.expected != got {
-				t.Errorf("expected %v, got %v", tc.expected, got)
-			}
-		})
-	}
-}
-
-// simpleImporter implements the types.Importer interface, but only allows
-// importing the syscall and unsafe packages.
-type simpleImporter struct {
-	syscallPkg *types.Package
-}
-
-func newSimpleImporter() *simpleImporter {
-	i := &simpleImporter{}
-
-	// Implement a dummy syscall package with the Errno type.
-	i.syscallPkg = types.NewPackage("syscall", "syscall")
-	obj := types.NewTypeName(token.NoPos, i.syscallPkg, "Errno", nil)
-	named := types.NewNamed(obj, nil, nil)
-	i.syscallPkg.Scope().Insert(obj)
-	named.SetUnderlying(types.Typ[types.Uintptr])
-	sig := types.NewSignatureType(nil, nil, nil, types.NewTuple(), types.NewTuple(types.NewParam(token.NoPos, i.syscallPkg, "", types.Typ[types.String])), false)
-	named.AddMethod(types.NewFunc(token.NoPos, i.syscallPkg, "Error", sig))
-	i.syscallPkg.MarkComplete()
-
-	return i
-}
-
-// Import implements the Importer interface. For testing usage only: it only
-// supports importing the unsafe package.
-func (i *simpleImporter) Import(path string) (*types.Package, error) {
-	switch path {
-	case "syscall":
-		return i.syscallPkg, nil
-	case "unsafe":
-		return types.Unsafe, nil
-	default:
-		return nil, fmt.Errorf("importer not implemented for package %s", path)
-	}
-}
-
-// formatDiagnostic formats the error message to be an indented comment. It
-// also fixes Windows path name issues (backward slashes).
-func formatDiagnostic(err error) string {
-	var msg string
-	switch err := err.(type) {
-	case scanner.Error:
-		msg = err.Pos.String() + ": " + err.Msg
-	default:
-		msg = err.Error()
-	}
-	if runtime.GOOS == "windows" {
-		// Fix Windows path slashes.
-		msg = strings.ReplaceAll(msg, "testdata\\", "testdata/")
-	}
-	return "//     " + msg + "\n"
-}

cgo/const.go

@@ -1,477 +0,0 @@
-package cgo
-
-// This file implements a parser of a subset of the C language, just enough to
-// parse common #define statements to Go constant expressions.
-
-import (
-	"fmt"
-	"go/ast"
-	"go/scanner"
-	"go/token"
-	"strings"
-)
-
-var (
-	prefixParseFns map[token.Token]func(*tokenizer) (ast.Expr, *scanner.Error)
-	precedences    = map[token.Token]int{
-		token.OR:  precedenceOr,
-		token.XOR: precedenceXor,
-		token.AND: precedenceAnd,
-		token.SHL: precedenceShift,
-		token.SHR: precedenceShift,
-		token.ADD: precedenceAdd,
-		token.SUB: precedenceAdd,
-		token.MUL: precedenceMul,
-		token.QUO: precedenceMul,
-		token.REM: precedenceMul,
-	}
-)
-
-// See: https://en.cppreference.com/w/c/language/operator_precedence
-const (
-	precedenceLowest = iota + 1
-	precedenceOr
-	precedenceXor
-	precedenceAnd
-	precedenceShift
-	precedenceAdd
-	precedenceMul
-	precedencePrefix
-)
-
-func init() {
-	// This must be done in an init function to avoid an initialization order
-	// failure.
-	prefixParseFns = map[token.Token]func(*tokenizer) (ast.Expr, *scanner.Error){
-		token.IDENT:  parseIdent,
-		token.INT:    parseBasicLit,
-		token.FLOAT:  parseBasicLit,
-		token.STRING: parseBasicLit,
-		token.CHAR:   parseBasicLit,
-		token.LPAREN: parseParenExpr,
-		token.SUB:    parseUnaryExpr,
-	}
-}
-
-// parseConst parses the given string as a C constant.
-func parseConst(pos token.Pos, fset *token.FileSet, value string, params []ast.Expr, callerPos token.Pos, f *cgoFile) (ast.Expr, *scanner.Error) {
-	t := newTokenizer(pos, fset, value, f)
-
-	// If params is non-nil (could be a zero length slice), this const is
-	// actually a function-call like expression from another macro.
-	// This means we have to parse a string like "(a, b) (a+b)".
-	// We do this by parsing the parameters at the start and then treating the
-	// following like a normal constant expression.
-	if params != nil {
-		// Parse opening paren.
-		if t.curToken != token.LPAREN {
-			return nil, unexpectedToken(t, token.LPAREN)
-		}
-		t.Next()
-
-		// Parse parameters (identifiers) and closing paren.
-		var paramIdents []string
-		for i := 0; ; i++ {
-			if i == 0 && t.curToken == token.RPAREN {
-				// No parameters, break early.
-				t.Next()
-				break
-			}
-
-			// Read the parameter name.
-			if t.curToken != token.IDENT {
-				return nil, unexpectedToken(t, token.IDENT)
-			}
-			paramIdents = append(paramIdents, t.curValue)
-			t.Next()
-
-			// Read the next token: either a continuation (comma) or end of list
-			// (rparen).
-			if t.curToken == token.RPAREN {
-				// End of parameter list.
-				t.Next()
-				break
-			} else if t.curToken == token.COMMA {
-				// Comma, so there will be another parameter name.
-				t.Next()
-			} else {
-				return nil, &scanner.Error{
-					Pos: t.fset.Position(t.curPos),
-					Msg: "unexpected token " + t.curToken.String() + " inside macro parameters, expected ',' or ')'",
-				}
-			}
-		}
-
-		// Report an error if there is a mismatch in parameter length.
-		// The error is reported at the location of the closing paren from the
-		// caller location.
-		if len(params) != len(paramIdents) {
-			return nil, &scanner.Error{
-				Pos: t.fset.Position(callerPos),
-				Msg: fmt.Sprintf("unexpected number of parameters: expected %d, got %d", len(paramIdents), len(params)),
-			}
-		}
-
-		// Assign values to the parameters.
-		// These parameter names are closer in 'scope' than other identifiers so
-		// will be used first when parsing an identifier.
-		for i, name := range paramIdents {
-			t.params[name] = params[i]
-		}
-	}
-
-	expr, err := parseConstExpr(t, precedenceLowest)
-	t.Next()
-	if t.curToken != token.EOF {
-		return nil, &scanner.Error{
-			Pos: t.fset.Position(t.curPos),
-			Msg: "unexpected token " + t.curToken.String() + ", expected end of expression",
-		}
-	}
-	return expr, err
-}
-
-// parseConstExpr parses a stream of C tokens to a Go expression.
-func parseConstExpr(t *tokenizer, precedence int) (ast.Expr, *scanner.Error) {
-	if t.curToken == token.EOF {
-		return nil, &scanner.Error{
-			Pos: t.fset.Position(t.curPos),
-			Msg: "empty constant",
-		}
-	}
-	prefix := prefixParseFns[t.curToken]
-	if prefix == nil {
-		return nil, &scanner.Error{
-			Pos: t.fset.Position(t.curPos),
-			Msg: fmt.Sprintf("unexpected token %s", t.curToken),
-		}
-	}
-	leftExpr, err := prefix(t)
-
-	for t.peekToken != token.EOF && precedence < precedences[t.peekToken] {
-		switch t.peekToken {
-		case token.OR, token.XOR, token.AND, token.SHL, token.SHR, token.ADD, token.SUB, token.MUL, token.QUO, token.REM:
-			t.Next()
-			leftExpr, err = parseBinaryExpr(t, leftExpr)
-		}
-	}
-
-	return leftExpr, err
-}
-
-func parseIdent(t *tokenizer) (ast.Expr, *scanner.Error) {
-	// If the identifier is one of the parameters of this function-like macro,
-	// use the parameter value.
-	if val, ok := t.params[t.curValue]; ok {
-		return val, nil
-	}
-
-	if t.f != nil {
-		// Check whether this identifier is actually a macro "call" with
-		// parameters. In that case, we should parse the parameters and pass it
-		// on to a new invocation of parseConst.
-		if t.peekToken == token.LPAREN {
-			if cursor, ok := t.f.names[t.curValue]; ok && t.f.isFunctionLikeMacro(cursor) {
-				// We know the current and peek tokens (the peek one is the '('
-				// token). So skip ahead until the current token is the first
-				// unknown token.
-				t.Next()
-				t.Next()
-
-				// Parse the list of parameters until ')' (rparen) is found.
-				params := []ast.Expr{}
-				for i := 0; ; i++ {
-					if i == 0 && t.curToken == token.RPAREN {
-						break
-					}
-					x, err := parseConstExpr(t, precedenceLowest)
-					if err != nil {
-						return nil, err
-					}
-					params = append(params, x)
-					t.Next()
-					if t.curToken == token.COMMA {
-						t.Next()
-					} else if t.curToken == token.RPAREN {
-						break
-					} else {
-						return nil, &scanner.Error{
-							Pos: t.fset.Position(t.curPos),
-							Msg: "unexpected token " + t.curToken.String() + ", ',' or ')'",
-						}
-					}
-				}
-
-				// Evaluate the macro value and use it as the identifier value.
-				rparen := t.curPos
-				pos, text := t.f.getMacro(cursor)
-				return parseConst(pos, t.fset, text, params, rparen, t.f)
-			}
-		}
-
-		// Normally the name is something defined in the file (like another
-		// macro) which we get the declaration from using getASTDeclName.
-		// This ensures that names that are only referenced inside a macro are
-		// still getting defined.
-		if cursor, ok := t.f.names[t.curValue]; ok {
-			return &ast.Ident{
-				NamePos: t.curPos,
-				Name:    t.f.getASTDeclName(t.curValue, cursor, false),
-			}, nil
-		}
-	}
-
-	// t.f is nil during testing. This is a fallback.
-	return &ast.Ident{
-		NamePos: t.curPos,
-		Name:    "C." + t.curValue,
-	}, nil
-}
-
-func parseBasicLit(t *tokenizer) (ast.Expr, *scanner.Error) {
-	return &ast.BasicLit{
-		ValuePos: t.curPos,
-		Kind:     t.curToken,
-		Value:    t.curValue,
-	}, nil
-}
-
-func parseParenExpr(t *tokenizer) (ast.Expr, *scanner.Error) {
-	lparen := t.curPos
-	t.Next()
-	x, err := parseConstExpr(t, precedenceLowest)
-	if err != nil {
-		return nil, err
-	}
-	t.Next()
-	if t.curToken != token.RPAREN {
-		return nil, unexpectedToken(t, token.RPAREN)
-	}
-	expr := &ast.ParenExpr{
-		Lparen: lparen,
-		X:      x,
-		Rparen: t.curPos,
-	}
-	return expr, nil
-}
-
-func parseBinaryExpr(t *tokenizer, left ast.Expr) (ast.Expr, *scanner.Error) {
-	expression := &ast.BinaryExpr{
-		X:     left,
-		Op:    t.curToken,
-		OpPos: t.curPos,
-	}
-	precedence := precedences[t.curToken]
-	t.Next()
-	right, err := parseConstExpr(t, precedence)
-	expression.Y = right
-	return expression, err
-}
-
-func parseUnaryExpr(t *tokenizer) (ast.Expr, *scanner.Error) {
-	expression := &ast.UnaryExpr{
-		OpPos: t.curPos,
-		Op:    t.curToken,
-	}
-	t.Next()
-	x, err := parseConstExpr(t, precedencePrefix)
-	expression.X = x
-	return expression, err
-}
-
-// unexpectedToken returns an error of the form "unexpected token FOO, expected
-// BAR".
-func unexpectedToken(t *tokenizer, expected token.Token) *scanner.Error {
-	return &scanner.Error{
-		Pos: t.fset.Position(t.curPos),
-		Msg: fmt.Sprintf("unexpected token %s, expected %s", t.curToken, expected),
-	}
-}
-
-// tokenizer reads C source code and converts it to Go tokens.
-type tokenizer struct {
-	f                   *cgoFile
-	curPos, peekPos     token.Pos
-	fset                *token.FileSet
-	curToken, peekToken token.Token
-	curValue, peekValue string
-	buf                 string
-	params              map[string]ast.Expr
-}
-
-// newTokenizer initializes a new tokenizer, positioned at the first token in
-// the string.
-func newTokenizer(start token.Pos, fset *token.FileSet, buf string, f *cgoFile) *tokenizer {
-	t := &tokenizer{
-		f:         f,
-		peekPos:   start,
-		fset:      fset,
-		buf:       buf,
-		peekToken: token.ILLEGAL,
-		params:    make(map[string]ast.Expr),
-	}
-	// Parse the first two tokens (cur and peek).
-	t.Next()
-	t.Next()
-	return t
-}
-
-// Next consumes the next token in the stream. There is no return value, read
-// the next token from the pos, token and value properties.
-func (t *tokenizer) Next() {
-	// The previous peek is now the current token.
-	t.curPos = t.peekPos
-	t.curToken = t.peekToken
-	t.curValue = t.peekValue
-
-	// Parse the next peek token.
-	if t.peekPos != token.NoPos {
-		t.peekPos += token.Pos(len(t.curValue))
-	}
-	for {
-		if len(t.buf) == 0 {
-			t.peekToken = token.EOF
-			return
-		}
-		c := t.buf[0]
-		switch {
-		case c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v':
-			// Skip whitespace.
-			// Based on this source, not sure whether it represents C whitespace:
-			// https://en.cppreference.com/w/cpp/string/byte/isspace
-			if t.peekPos != token.NoPos {
-				t.peekPos++
-			}
-			t.buf = t.buf[1:]
-		case len(t.buf) >= 2 && (string(t.buf[:2]) == "||" || string(t.buf[:2]) == "&&" || string(t.buf[:2]) == "<<" || string(t.buf[:2]) == ">>"):
-			// Two-character tokens.
-			switch c {
-			case '&':
-				t.peekToken = token.LAND
-			case '|':
-				t.peekToken = token.LOR
-			case '<':
-				t.peekToken = token.SHL
-			case '>':
-				t.peekToken = token.SHR
-			default:
-				panic("unreachable")
-			}
-			t.peekValue = t.buf[:2]
-			t.buf = t.buf[2:]
-			return
-		case c == '(' || c == ')' || c == ',' || c == '+' || c == '-' || c == '*' || c == '/' || c == '%' || c == '&' || c == '|' || c == '^':
-			// Single-character tokens.
-			// TODO: ++ (increment) and -- (decrement) operators.
-			switch c {
-			case '(':
-				t.peekToken = token.LPAREN
-			case ')':
-				t.peekToken = token.RPAREN
-			case ',':
-				t.peekToken = token.COMMA
-			case '+':
-				t.peekToken = token.ADD
-			case '-':
-				t.peekToken = token.SUB
-			case '*':
-				t.peekToken = token.MUL
-			case '/':
-				t.peekToken = token.QUO
-			case '%':
-				t.peekToken = token.REM
-			case '&':
-				t.peekToken = token.AND
-			case '|':
-				t.peekToken = token.OR
-			case '^':
-				t.peekToken = token.XOR
-			}
-			t.peekValue = t.buf[:1]
-			t.buf = t.buf[1:]
-			return
-		case c >= '0' && c <= '9':
-			// Numeric constant (int, float, etc.).
-			// Find the last non-numeric character.
-			tokenLen := len(t.buf)
-			hasDot := false
-			for i, c := range t.buf {
-				if c == '.' {
-					hasDot = true
-				}
-				if c >= '0' && c <= '9' || c == '.' || c == '_' || c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' {
-					tokenLen = i + 1
-				} else {
-					break
-				}
-			}
-			t.peekValue = t.buf[:tokenLen]
-			t.buf = t.buf[tokenLen:]
-			if hasDot {
-				// Integer constants are more complicated than this but this is
-				// a close approximation.
-				// https://en.cppreference.com/w/cpp/language/integer_literal
-				t.peekToken = token.FLOAT
-				t.peekValue = strings.TrimRight(t.peekValue, "f")
-			} else {
-				t.peekToken = token.INT
-				t.peekValue = strings.TrimRight(t.peekValue, "uUlL")
-			}
-			return
-		case c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z' || c == '_':
-			// Identifier. Find all remaining tokens that are part of this
-			// identifier.
-			tokenLen := len(t.buf)
-			for i, c := range t.buf {
-				if c >= '0' && c <= '9' || c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z' || c == '_' {
-					tokenLen = i + 1
-				} else {
-					break
-				}
-			}
-			t.peekValue = t.buf[:tokenLen]
-			t.buf = t.buf[tokenLen:]
-			t.peekToken = token.IDENT
-			return
-		case c == '"':
-			// String constant. Find the first '"' character that is not
-			// preceded by a backslash.
-			escape := false
-			tokenLen := len(t.buf)
-			for i, c := range t.buf {
-				if i != 0 && c == '"' && !escape {
-					tokenLen = i + 1
-					break
-				}
-				if !escape {
-					escape = c == '\\'
-				}
-			}
-			t.peekToken = token.STRING
-			t.peekValue = t.buf[:tokenLen]
-			t.buf = t.buf[tokenLen:]
-			return
-		case c == '\'':
-			// Char (rune) constant. Find the first '\'' character that is not
-			// preceded by a backslash.
-			escape := false
-			tokenLen := len(t.buf)
-			for i, c := range t.buf {
-				if i != 0 && c == '\'' && !escape {
-					tokenLen = i + 1
-					break
-				}
-				if !escape {
-					escape = c == '\\'
-				}
-			}
-			t.peekToken = token.CHAR
-			t.peekValue = t.buf[:tokenLen]
-			t.buf = t.buf[tokenLen:]
-			return
-		default:
-			t.peekToken = token.ILLEGAL
-			return
-		}
-	}
-}

cgo/const_test.go

@@ -1,85 +0,0 @@
-package cgo
-
-import (
-	"bytes"
-	"go/format"
-	"go/token"
-	"strings"
-	"testing"
-)
-
-func TestParseConst(t *testing.T) {
-	// Test converting a C constant to a Go constant.
-	for _, tc := range []struct {
-		C  string
-		Go string
-	}{
-		{`5`, `5`},
-		{`(5)`, `(5)`},
-		{`(((5)))`, `(5)`},
-		{`)`, `error: 1:1: unexpected token )`},
-		{`5)`, `error: 1:2: unexpected token ), expected end of expression`},
-		{"  \t)", `error: 1:4: unexpected token )`},
-		{`5.8f`, `5.8`},
-		{`foo`, `C.foo`},
-		{``, `error: 1:1: empty constant`}, // empty constants not allowed in Go
-		{`"foo"`, `"foo"`},
-		{`"a\\n"`, `"a\\n"`},
-		{`"a\n"`, `"a\n"`},
-		{`"a\""`, `"a\""`},
-		{`'a'`, `'a'`},
-		{`0b10`, `0b10`},
-		{`0x1234_5678`, `0x1234_5678`},
-		{`5 5`, `error: 1:3: unexpected token INT, expected end of expression`}, // test for a bugfix
-		// Binary operators.
-		{`5+5`, `5 + 5`},
-		{`5-5`, `5 - 5`},
-		{`5*5`, `5 * 5`},
-		{`5/5`, `5 / 5`},
-		{`5%5`, `5 % 5`},
-		{`5&5`, `5 & 5`},
-		{`5|5`, `5 | 5`},
-		{`5^5`, `5 ^ 5`},
-		{`5<<5`, `5 << 5`},
-		{`5>>5`, `5 >> 5`},
-		{`5>>5 + 3`, `5 >> (5 + 3)`},
-		{`5>>5 ^ 3`, `5>>5 ^ 3`},
-		{`5||5`, `error: 1:2: unexpected token ||, expected end of expression`}, // logical binops aren't supported yet
-		{`(5/5)`, `(5 / 5)`},
-		{`1 - 2`, `1 - 2`},
-		{`1 - 2 + 3`, `1 - 2 + 3`},
-		{`1 - 2 * 3`, `1 - 2*3`},
-		{`(1 - 2) * 3`, `(1 - 2) * 3`},
-		{`1 * 2 - 3`, `1*2 - 3`},
-		{`1 * (2 - 3)`, `1 * (2 - 3)`},
-		// Unary operators.
-		{`-5`, `-5`},
-		{`-5-2`, `-5 - 2`},
-		{`5 - - 2`, `5 - -2`},
-	} {
-		fset := token.NewFileSet()
-		startPos := fset.AddFile("", -1, 1000).Pos(0)
-		expr, err := parseConst(startPos, fset, tc.C, nil, token.NoPos, nil)
-		s := "<invalid>"
-		if err != nil {
-			if !strings.HasPrefix(tc.Go, "error: ") {
-				t.Errorf("expected value %#v for C constant %#v but got error %#v", tc.Go, tc.C, err.Error())
-				continue
-			}
-			s = "error: " + err.Error()
-		} else if expr != nil {
-			// Serialize the Go constant to a string, for more readable test
-			// cases.
-			buf := &bytes.Buffer{}
-			err := format.Node(buf, fset, expr)
-			if err != nil {
-				t.Errorf("could not format expr from C constant %#v: %v", tc.C, err)
-				continue
-			}
-			s = buf.String()
-		}
-		if s != tc.Go {
-			t.Errorf("C constant %#v was parsed to %#v while expecting %#v", tc.C, s, tc.Go)
-		}
-	}
-}

cgo/libclang_config.go

@@ -0,0 +1,11 @@
+// +build !byollvm
+
+package cgo
+
+/*
+#cgo linux  CFLAGS: -I/usr/lib/llvm-8/include
+#cgo darwin CFLAGS: -I/usr/local/opt/llvm/include
+#cgo linux  LDFLAGS: -L/usr/lib/llvm-8/lib -lclang
+#cgo darwin LDFLAGS: -L/usr/local/opt/llvm/lib -lclang -lffi
+*/
+import "C"

cgo/libclang_config_llvm15.go

@@ -1,15 +0,0 @@
-//go:build !byollvm && llvm15
-
-package cgo
-
-/*
-#cgo linux        CFLAGS:  -I/usr/lib/llvm-15/include
-#cgo darwin,amd64 CFLAGS:  -I/usr/local/opt/llvm@15/include
-#cgo darwin,arm64 CFLAGS:  -I/opt/homebrew/opt/llvm@15/include
-#cgo freebsd      CFLAGS:  -I/usr/local/llvm15/include
-#cgo linux        LDFLAGS: -L/usr/lib/llvm-15/lib -lclang
-#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/llvm@15/lib -lclang
-#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/llvm@15/lib -lclang
-#cgo freebsd      LDFLAGS: -L/usr/local/llvm15/lib -lclang
-*/
-import "C"

cgo/libclang_config_llvm16.go

@@ -1,21 +0,0 @@
-//go:build !byollvm && llvm16
-
-package cgo
-
-// As of 2023-05-05, there is a packaging issue with LLVM 16 on Debian:
-// https://github.com/llvm/llvm-project/issues/62199
-// A workaround is to fix this locally, using something like this:
-//
-//   ln -sf ../../x86_64-linux-gnu/libclang-16.so.1 /usr/lib/llvm-16/lib/libclang.so
-
-/*
-#cgo linux        CFLAGS:  -I/usr/lib/llvm-16/include
-#cgo darwin,amd64 CFLAGS:  -I/usr/local/opt/llvm@16/include
-#cgo darwin,arm64 CFLAGS:  -I/opt/homebrew/opt/llvm@16/include
-#cgo freebsd      CFLAGS:  -I/usr/local/llvm16/include
-#cgo linux        LDFLAGS: -L/usr/lib/llvm-16/lib -lclang
-#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/llvm@16/lib -lclang
-#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/llvm@16/lib -lclang
-#cgo freebsd      LDFLAGS: -L/usr/local/llvm16/lib -lclang
-*/
-import "C"

cgo/libclang_config_llvm17.go

@@ -1,15 +0,0 @@
-//go:build !byollvm && llvm17
-
-package cgo
-
-/*
-#cgo linux        CFLAGS:  -I/usr/include/llvm-17 -I/usr/include/llvm-c-17 -I/usr/lib/llvm-17/include
-#cgo darwin,amd64 CFLAGS:  -I/usr/local/opt/llvm@17/include
-#cgo darwin,arm64 CFLAGS:  -I/opt/homebrew/opt/llvm@17/include
-#cgo freebsd      CFLAGS:  -I/usr/local/llvm17/include
-#cgo linux        LDFLAGS: -L/usr/lib/llvm-17/lib -lclang
-#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/llvm@17/lib -lclang
-#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/llvm@17/lib -lclang
-#cgo freebsd      LDFLAGS: -L/usr/local/llvm17/lib -lclang
-*/
-import "C"

cgo/libclang_config_llvm18.go

@@ -1,15 +0,0 @@
-//go:build !byollvm && llvm18
-
-package cgo
-
-/*
-#cgo linux        CFLAGS:  -I/usr/include/llvm-18 -I/usr/include/llvm-c-18 -I/usr/lib/llvm-18/include
-#cgo darwin,amd64 CFLAGS:  -I/usr/local/opt/llvm@18/include
-#cgo darwin,arm64 CFLAGS:  -I/opt/homebrew/opt/llvm@18/include
-#cgo freebsd      CFLAGS:  -I/usr/local/llvm18/include
-#cgo linux        LDFLAGS: -L/usr/lib/llvm-18/lib -lclang
-#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/llvm@18/lib -lclang
-#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/llvm@18/lib -lclang
-#cgo freebsd      LDFLAGS: -L/usr/local/llvm18/lib -lclang
-*/
-import "C"

cgo/libclang_config_llvm19.go

@@ -1,15 +0,0 @@
-//go:build !byollvm && llvm19
-
-package cgo
-
-/*
-#cgo linux        CFLAGS:  -I/usr/include/llvm-19 -I/usr/include/llvm-c-19 -I/usr/lib/llvm-19/include -I/usr/lib64/llvm19/include
-#cgo darwin,amd64 CFLAGS:  -I/usr/local/opt/llvm@19/include
-#cgo darwin,arm64 CFLAGS:  -I/opt/homebrew/opt/llvm@19/include
-#cgo freebsd      CFLAGS:  -I/usr/local/llvm19/include
-#cgo linux        LDFLAGS: -L/usr/lib/llvm-19/lib -lclang
-#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/llvm@19/lib -lclang
-#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/llvm@19/lib -lclang
-#cgo freebsd      LDFLAGS: -L/usr/local/llvm19/lib -lclang
-*/
-import "C"

cgo/libclang_config_llvm20.go

@@ -1,15 +0,0 @@
-//go:build !byollvm && !llvm15 && !llvm16 && !llvm17 && !llvm18 && !llvm19 && !llvm21 && !llvm22
-
-package cgo
-
-/*
-#cgo linux        CFLAGS:  -I/usr/include/llvm-20 -I/usr/include/llvm-c-20 -I/usr/lib/llvm-20/include -I/usr/lib64/llvm20/include
-#cgo darwin,amd64 CFLAGS:  -I/usr/local/opt/llvm@20/include
-#cgo darwin,arm64 CFLAGS:  -I/opt/homebrew/opt/llvm@20/include
-#cgo freebsd      CFLAGS:  -I/usr/local/llvm20/include
-#cgo linux        LDFLAGS: -L/usr/lib/llvm-20/lib -lclang
-#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/llvm@20/lib -lclang
-#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/llvm@20/lib -lclang
-#cgo freebsd      LDFLAGS: -L/usr/local/llvm20/lib -lclang
-*/
-import "C"

cgo/libclang_config_llvm21.go

@@ -1,15 +0,0 @@
-//go:build !byollvm && llvm21
-
-package cgo
-
-/*
-#cgo linux        CFLAGS:  -I/usr/include/llvm-21 -I/usr/include/llvm-c-21 -I/usr/lib/llvm-21/include -I/usr/lib64/llvm21/include
-#cgo darwin,amd64 CFLAGS:  -I/usr/local/opt/llvm@21/include
-#cgo darwin,arm64 CFLAGS:  -I/opt/homebrew/opt/llvm@21/include
-#cgo freebsd      CFLAGS:  -I/usr/local/llvm21/include
-#cgo linux        LDFLAGS: -L/usr/lib/llvm-21/lib -lclang
-#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/llvm@21/lib -lclang
-#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/llvm@21/lib -lclang
-#cgo freebsd      LDFLAGS: -L/usr/local/llvm21/lib -lclang
-*/
-import "C"

cgo/libclang_config_llvm22.go

@@ -1,15 +0,0 @@
-//go:build !byollvm && llvm22
-
-package cgo
-
-/*
-#cgo linux        CFLAGS:  -I/usr/include/llvm-22 -I/usr/include/llvm-c-22 -I/usr/lib/llvm-22/include -I/usr/lib64/llvm22/include
-#cgo darwin,amd64 CFLAGS:  -I/usr/local/opt/llvm@22/include
-#cgo darwin,arm64 CFLAGS:  -I/opt/homebrew/opt/llvm@22/include
-#cgo freebsd      CFLAGS:  -I/usr/local/llvm22/include
-#cgo linux        LDFLAGS: -L/usr/lib/llvm-22/lib -lclang
-#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/llvm@22/lib -lclang
-#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/llvm@22/lib -lclang
-#cgo freebsd      LDFLAGS: -L/usr/local/llvm22/lib -lclang
-*/
-import "C"

cgo/libclang_stubs.c

@@ -3,7 +3,7 @@
 // are slightly different from the ones defined in libclang.go, but they
 // should be ABI compatible.
 
-#include <clang-c/Index.h> // If this fails, libclang headers aren't available. Please take a look here: https://tinygo.org/docs/guides/build/
+#include <clang-c/Index.h> // if this fails, install libclang-8-dev
 
 CXCursor tinygo_clang_getTranslationUnitCursor(CXTranslationUnit tu) {
 	return clang_getTranslationUnitCursor(tu);
@@ -17,14 +17,6 @@ CXString tinygo_clang_getCursorSpelling(CXCursor c) {
 	return clang_getCursorSpelling(c);
 }
 
-CXString tinygo_clang_getCursorPrettyPrinted(CXCursor c, CXPrintingPolicy policy) {
-	return clang_getCursorPrettyPrinted(c, policy);
-}
-
-CXPrintingPolicy tinygo_clang_getCursorPrintingPolicy(CXCursor c) {
-	return clang_getCursorPrintingPolicy(c);
-}
-
 enum CXCursorKind tinygo_clang_getCursorKind(CXCursor c) {
 	return clang_getCursorKind(c);
 }
@@ -53,10 +45,6 @@ CXCursor tinygo_clang_Cursor_getArgument(CXCursor c, unsigned i) {
 	return clang_Cursor_getArgument(c, i);
 }
 
-enum CX_StorageClass tinygo_clang_Cursor_getStorageClass(CXCursor c) {
-	return clang_Cursor_getStorageClass(c);
-}
-
 CXSourceLocation tinygo_clang_getCursorLocation(CXCursor c) {
 	return clang_getCursorLocation(c);
 }
@@ -77,14 +65,6 @@ CXType tinygo_clang_getEnumDeclIntegerType(CXCursor c) {
 	return clang_getEnumDeclIntegerType(c);
 }
 
-unsigned tinygo_clang_Cursor_isAnonymous(CXCursor c) {
-	return clang_Cursor_isAnonymous(c);
-}
-
 unsigned tinygo_clang_Cursor_isBitField(CXCursor c) {
 	return clang_Cursor_isBitField(c);
-}
-
-unsigned tinygo_clang_Cursor_isMacroFunctionLike(CXCursor c) {
-	return clang_Cursor_isMacroFunctionLike(c);
-}
+}

cgo/security.go

@@ -1,303 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This file has been copied from the Go 1.13 release tree.
-
-// Checking of compiler and linker flags.
-// We must avoid flags like -fplugin=, which can allow
-// arbitrary code execution during the build.
-// Do not make changes here without carefully
-// considering the implications.
-// (That's why the code is isolated in a file named security.go.)
-//
-// Note that -Wl,foo means split foo on commas and pass to
-// the linker, so that -Wl,-foo,bar means pass -foo bar to
-// the linker. Similarly -Wa,foo for the assembler and so on.
-// If any of these are permitted, the wildcard portion must
-// disallow commas.
-//
-// Note also that GNU binutils accept any argument @foo
-// as meaning "read more flags from the file foo", so we must
-// guard against any command-line argument beginning with @,
-// even things like "-I @foo".
-// We use safeArg (which is even more conservative)
-// to reject these.
-//
-// Even worse, gcc -I@foo (one arg) turns into cc1 -I @foo (two args),
-// so although gcc doesn't expand the @foo, cc1 will.
-// So out of paranoia, we reject @ at the beginning of every
-// flag argument that might be split into its own argument.
-
-package cgo
-
-import (
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-	"unicode/utf8"
-)
-
-var re = regexp.MustCompile
-
-var validCompilerFlags = []*regexp.Regexp{
-	re(`-D([A-Za-z_].*)`),
-	re(`-F([^@\-].*)`),
-	re(`-I([^@\-].*)`),
-	re(`-O`),
-	re(`-O([^@\-].*)`),
-	re(`-W`),
-	re(`-W([^@,]+)`), // -Wall but not -Wa,-foo.
-	re(`-Wa,-mbig-obj`),
-	re(`-Wp,-D([A-Za-z_].*)`),
-	re(`-ansi`),
-	re(`-f(no-)?asynchronous-unwind-tables`),
-	re(`-f(no-)?blocks`),
-	re(`-f(no-)builtin-[a-zA-Z0-9_]*`),
-	re(`-f(no-)?common`),
-	re(`-f(no-)?constant-cfstrings`),
-	re(`-fdiagnostics-show-note-include-stack`),
-	re(`-f(no-)?eliminate-unused-debug-types`),
-	re(`-f(no-)?exceptions`),
-	re(`-f(no-)?fast-math`),
-	re(`-f(no-)?inline-functions`),
-	re(`-finput-charset=([^@\-].*)`),
-	re(`-f(no-)?fat-lto-objects`),
-	re(`-f(no-)?keep-inline-dllexport`),
-	re(`-f(no-)?lto`),
-	re(`-fmacro-backtrace-limit=(.+)`),
-	re(`-fmessage-length=(.+)`),
-	re(`-f(no-)?modules`),
-	re(`-f(no-)?objc-arc`),
-	re(`-f(no-)?objc-nonfragile-abi`),
-	re(`-f(no-)?objc-legacy-dispatch`),
-	re(`-f(no-)?omit-frame-pointer`),
-	re(`-f(no-)?openmp(-simd)?`),
-	re(`-f(no-)?permissive`),
-	re(`-f(no-)?(pic|PIC|pie|PIE)`),
-	re(`-f(no-)?plt`),
-	re(`-f(no-)?rtti`),
-	re(`-f(no-)?short-enums`),
-	re(`-f(no-)?split-stack`),
-	re(`-f(no-)?stack-(.+)`),
-	re(`-f(no-)?strict-aliasing`),
-	re(`-f(un)signed-char`),
-	re(`-f(no-)?use-linker-plugin`), // safe if -B is not used; we don't permit -B
-	re(`-f(no-)?visibility-inlines-hidden`),
-	re(`-fsanitize=(.+)`),
-	re(`-ftemplate-depth-(.+)`),
-	re(`-fvisibility=(.+)`),
-	re(`-g([^@\-].*)?`),
-	re(`-m32`),
-	re(`-m64`),
-	re(`-m(abi|arch|cpu|fpu|tune)=([^@\-].*)`),
-	re(`-m(no-)?v?aes`),
-	re(`-marm`),
-	re(`-m(no-)?avx[0-9a-z]*`),
-	re(`-mfloat-abi=([^@\-].*)`),
-	re(`-mfpmath=[0-9a-z,+]*`),
-	re(`-m(no-)?avx[0-9a-z.]*`),
-	re(`-m(no-)?ms-bitfields`),
-	re(`-m(no-)?stack-(.+)`),
-	re(`-mmacosx-(.+)`),
-	re(`-mios-simulator-version-min=(.+)`),
-	re(`-miphoneos-version-min=(.+)`),
-	re(`-mtvos-simulator-version-min=(.+)`),
-	re(`-mtvos-version-min=(.+)`),
-	re(`-mwatchos-simulator-version-min=(.+)`),
-	re(`-mwatchos-version-min=(.+)`),
-	re(`-mnop-fun-dllimport`),
-	re(`-m(no-)?sse[0-9.]*`),
-	re(`-m(no-)?ssse3`),
-	re(`-mthumb(-interwork)?`),
-	re(`-mthreads`),
-	re(`-mwindows`),
-	re(`--param=ssp-buffer-size=[0-9]*`),
-	re(`-pedantic(-errors)?`),
-	re(`-pipe`),
-	re(`-pthread`),
-	re(`-?-std=([^@\-].*)`),
-	re(`-?-stdlib=([^@\-].*)`),
-	re(`--sysroot=([^@\-].*)`),
-	re(`-w`),
-	re(`-x([^@\-].*)`),
-	re(`-v`),
-}
-
-var validCompilerFlagsWithNextArg = []string{
-	"-arch",
-	"-D",
-	"-I",
-	"-framework",
-	"-isysroot",
-	"-isystem",
-	"--sysroot",
-	"-target",
-	"-x",
-}
-
-var validLinkerFlags = []*regexp.Regexp{
-	re(`-F([^@\-].*)`),
-	re(`-l([^@\-].*)`),
-	re(`-L([^@\-].*)`),
-	re(`-O`),
-	re(`-O([^@\-].*)`),
-	re(`--export=([^@\-].*)`),
-	re(`-f(no-)?(pic|PIC|pie|PIE)`),
-	re(`-f(no-)?openmp(-simd)?`),
-	re(`-fsanitize=([^@\-].*)`),
-	re(`-flat_namespace`),
-	re(`-g([^@\-].*)?`),
-	re(`-headerpad_max_install_names`),
-	re(`-m(abi|arch|cpu|fpu|tune)=([^@\-].*)`),
-	re(`-mfloat-abi=([^@\-].*)`),
-	re(`-mmacosx-(.+)`),
-	re(`-mios-simulator-version-min=(.+)`),
-	re(`-miphoneos-version-min=(.+)`),
-	re(`-mthreads`),
-	re(`-mwindows`),
-	re(`-(pic|PIC|pie|PIE)`),
-	re(`-pthread`),
-	re(`-rdynamic`),
-	re(`-shared`),
-	re(`-?-static([-a-z0-9+]*)`),
-	re(`-?-stdlib=([^@\-].*)`),
-	re(`-v`),
-
-	// Note that any wildcards in -Wl need to exclude comma,
-	// since -Wl splits its argument at commas and passes
-	// them all to the linker uninterpreted. Allowing comma
-	// in a wildcard would allow tunnelling arbitrary additional
-	// linker arguments through one of these.
-	re(`-Wl,--(no-)?allow-multiple-definition`),
-	re(`-Wl,--(no-)?allow-shlib-undefined`),
-	re(`-Wl,--(no-)?as-needed`),
-	re(`-Wl,-Bdynamic`),
-	re(`-Wl,-berok`),
-	re(`-Wl,-Bstatic`),
-	re(`-WL,-O([^@,\-][^,]*)?`),
-	re(`-Wl,-d[ny]`),
-	re(`-Wl,--disable-new-dtags`),
-	re(`-Wl,-e[=,][a-zA-Z0-9]*`),
-	re(`-Wl,--enable-new-dtags`),
-	re(`-Wl,--end-group`),
-	re(`-Wl,--(no-)?export-dynamic`),
-	re(`-Wl,-framework,[^,@\-][^,]+`),
-	re(`-Wl,-headerpad_max_install_names`),
-	re(`-Wl,--no-undefined`),
-	re(`-Wl,-R([^@\-][^,@]*$)`),
-	re(`-Wl,--just-symbols[=,]([^,@\-][^,@]+)`),
-	re(`-Wl,-rpath(-link)?[=,]([^,@\-][^,]+)`),
-	re(`-Wl,-s`),
-	re(`-Wl,-search_paths_first`),
-	re(`-Wl,-sectcreate,([^,@\-][^,]+),([^,@\-][^,]+),([^,@\-][^,]+)`),
-	re(`-Wl,--start-group`),
-	re(`-Wl,-?-static`),
-	re(`-Wl,-?-subsystem,(native|windows|console|posix|xbox)`),
-	re(`-Wl,-syslibroot[=,]([^,@\-][^,]+)`),
-	re(`-Wl,-undefined[=,]([^,@\-][^,]+)`),
-	re(`-Wl,-?-unresolved-symbols=[^,]+`),
-	re(`-Wl,--(no-)?warn-([^,]+)`),
-	re(`-Wl,-z,(no)?execstack`),
-	re(`-Wl,-z,relro`),
-
-	re(`[a-zA-Z0-9_/].*\.(a|o|obj|dll|dylib|so)`), // direct linker inputs: x.o or libfoo.so (but not -foo.o or @foo.o)
-	re(`\./.*\.(a|o|obj|dll|dylib|so)`),
-}
-
-var validLinkerFlagsWithNextArg = []string{
-	"-arch",
-	"-F",
-	"-l",
-	"-L",
-	"-framework",
-	"-isysroot",
-	"--sysroot",
-	"-target",
-	"-Wl,-framework",
-	"-Wl,-rpath",
-	"-Wl,-R",
-	"-Wl,--just-symbols",
-	"-Wl,-undefined",
-}
-
-func checkCompilerFlags(name string, list []string) error {
-	return checkFlags(name, list, validCompilerFlags, validCompilerFlagsWithNextArg)
-}
-
-func checkLinkerFlags(name string, list []string) error {
-	return checkFlags(name, list, validLinkerFlags, validLinkerFlagsWithNextArg)
-}
-
-func checkFlags(name string, list []string, valid []*regexp.Regexp, validNext []string) error {
-	// Let users override rules with $CGO_CFLAGS_ALLOW, $CGO_CFLAGS_DISALLOW, etc.
-	var (
-		allow    *regexp.Regexp
-		disallow *regexp.Regexp
-	)
-	if env := os.Getenv("CGO_" + name + "_ALLOW"); env != "" {
-		r, err := regexp.Compile(env)
-		if err != nil {
-			return fmt.Errorf("parsing $CGO_%s_ALLOW: %v", name, err)
-		}
-		allow = r
-	}
-	if env := os.Getenv("CGO_" + name + "_DISALLOW"); env != "" {
-		r, err := regexp.Compile(env)
-		if err != nil {
-			return fmt.Errorf("parsing $CGO_%s_DISALLOW: %v", name, err)
-		}
-		disallow = r
-	}
-
-Args:
-	for i := 0; i < len(list); i++ {
-		arg := list[i]
-		if disallow != nil && disallow.FindString(arg) == arg {
-			goto Bad
-		}
-		if allow != nil && allow.FindString(arg) == arg {
-			continue Args
-		}
-		for _, re := range valid {
-			if re.FindString(arg) == arg { // must be complete match
-				continue Args
-			}
-		}
-		for _, x := range validNext {
-			if arg == x {
-				if i+1 < len(list) && safeArg(list[i+1]) {
-					i++
-					continue Args
-				}
-
-				// Permit -Wl,-framework -Wl,name.
-				if i+1 < len(list) &&
-					strings.HasPrefix(arg, "-Wl,") &&
-					strings.HasPrefix(list[i+1], "-Wl,") &&
-					safeArg(list[i+1][4:]) &&
-					!strings.Contains(list[i+1][4:], ",") {
-					i++
-					continue Args
-				}
-
-				if i+1 < len(list) {
-					return fmt.Errorf("invalid flag: %s %s (see https://golang.org/s/invalidflag)", arg, list[i+1])
-				}
-				return fmt.Errorf("invalid flag: %s without argument (see https://golang.org/s/invalidflag)", arg)
-			}
-		}
-	Bad:
-		return fmt.Errorf("invalid flag: %s", arg)
-	}
-	return nil
-}
-
-func safeArg(name string) bool {
-	if name == "" {
-		return false
-	}
-	c := name[0]
-	return '0' <= c && c <= '9' || 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || c == '.' || c == '_' || c == '/' || c >= utf8.RuneSelf
-}

cgo/security_test.go

@@ -1,261 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This file has been copied from the Go 1.13 release tree.
-
-package cgo
-
-import (
-	"os"
-	"testing"
-)
-
-var goodCompilerFlags = [][]string{
-	{"-DFOO"},
-	{"-Dfoo=bar"},
-	{"-F/Qt"},
-	{"-I/"},
-	{"-I/etc/passwd"},
-	{"-I."},
-	{"-O"},
-	{"-O2"},
-	{"-Osmall"},
-	{"-W"},
-	{"-Wall"},
-	{"-fobjc-arc"},
-	{"-fno-objc-arc"},
-	{"-fomit-frame-pointer"},
-	{"-fno-omit-frame-pointer"},
-	{"-fpic"},
-	{"-fno-pic"},
-	{"-fPIC"},
-	{"-fno-PIC"},
-	{"-fpie"},
-	{"-fno-pie"},
-	{"-fPIE"},
-	{"-fno-PIE"},
-	{"-fsplit-stack"},
-	{"-fno-split-stack"},
-	{"-fstack-xxx"},
-	{"-fno-stack-xxx"},
-	{"-fsanitize=hands"},
-	{"-g"},
-	{"-ggdb"},
-	{"-march=souza"},
-	{"-mcpu=123"},
-	{"-mfpu=123"},
-	{"-mtune=happybirthday"},
-	{"-mstack-overflow"},
-	{"-mno-stack-overflow"},
-	{"-mmacosx-version"},
-	{"-mnop-fun-dllimport"},
-	{"-pthread"},
-	{"-std=c99"},
-	{"-xc"},
-	{"-D", "FOO"},
-	{"-D", "foo=bar"},
-	{"-I", "."},
-	{"-I", "/etc/passwd"},
-	{"-I", "世界"},
-	{"-framework", "Chocolate"},
-	{"-x", "c"},
-	{"-v"},
-}
-
-var badCompilerFlags = [][]string{
-	{"-D@X"},
-	{"-D-X"},
-	{"-F@dir"},
-	{"-F-dir"},
-	{"-I@dir"},
-	{"-I-dir"},
-	{"-O@1"},
-	{"-Wa,-foo"},
-	{"-W@foo"},
-	{"-g@gdb"},
-	{"-g-gdb"},
-	{"-march=@dawn"},
-	{"-march=-dawn"},
-	{"-std=@c99"},
-	{"-std=-c99"},
-	{"-x@c"},
-	{"-x-c"},
-	{"-D", "@foo"},
-	{"-D", "-foo"},
-	{"-I", "@foo"},
-	{"-I", "-foo"},
-	{"-framework", "-Caffeine"},
-	{"-framework", "@Home"},
-	{"-x", "--c"},
-	{"-x", "@obj"},
-}
-
-func TestCheckCompilerFlags(t *testing.T) {
-	for _, f := range goodCompilerFlags {
-		if err := checkCompilerFlags("test", f); err != nil {
-			t.Errorf("unexpected error for %q: %v", f, err)
-		}
-	}
-	for _, f := range badCompilerFlags {
-		if err := checkCompilerFlags("test", f); err == nil {
-			t.Errorf("missing error for %q", f)
-		}
-	}
-}
-
-var goodLinkerFlags = [][]string{
-	{"-Fbar"},
-	{"-lbar"},
-	{"-Lbar"},
-	{"--export=my_symbol"},
-	{"-fpic"},
-	{"-fno-pic"},
-	{"-fPIC"},
-	{"-fno-PIC"},
-	{"-fpie"},
-	{"-fno-pie"},
-	{"-fPIE"},
-	{"-fno-PIE"},
-	{"-fsanitize=hands"},
-	{"-g"},
-	{"-ggdb"},
-	{"-march=souza"},
-	{"-mcpu=123"},
-	{"-mfpu=123"},
-	{"-mtune=happybirthday"},
-	{"-pic"},
-	{"-pthread"},
-	{"-Wl,-rpath,foo"},
-	{"-Wl,-rpath,$ORIGIN/foo"},
-	{"-Wl,-R", "/foo"},
-	{"-Wl,-R", "foo"},
-	{"-Wl,-R,foo"},
-	{"-Wl,--just-symbols=foo"},
-	{"-Wl,--just-symbols,foo"},
-	{"-Wl,--warn-error"},
-	{"-Wl,--no-warn-error"},
-	{"foo.so"},
-	{"_世界.dll"},
-	{"./x.o"},
-	{"libcgosotest.dylib"},
-	{"-F", "framework"},
-	{"-l", "."},
-	{"-l", "/etc/passwd"},
-	{"-l", "世界"},
-	{"-L", "framework"},
-	{"-framework", "Chocolate"},
-	{"-v"},
-	{"-Wl,-framework", "-Wl,Chocolate"},
-	{"-Wl,-framework,Chocolate"},
-	{"-Wl,-unresolved-symbols=ignore-all"},
-}
-
-var badLinkerFlags = [][]string{
-	{"-DFOO"},
-	{"-Dfoo=bar"},
-	{"-W"},
-	{"-Wall"},
-	{"-fobjc-arc"},
-	{"-fno-objc-arc"},
-	{"-fomit-frame-pointer"},
-	{"-fno-omit-frame-pointer"},
-	{"-fsplit-stack"},
-	{"-fno-split-stack"},
-	{"-fstack-xxx"},
-	{"-fno-stack-xxx"},
-	{"-mstack-overflow"},
-	{"-mno-stack-overflow"},
-	{"-mnop-fun-dllimport"},
-	{"-std=c99"},
-	{"-xc"},
-	{"-D", "FOO"},
-	{"-D", "foo=bar"},
-	{"-I", "FOO"},
-	{"-L", "@foo"},
-	{"-L", "-foo"},
-	{"-x", "c"},
-	{"-D@X"},
-	{"-D-X"},
-	{"-I@dir"},
-	{"-I-dir"},
-	{"-O@1"},
-	{"-Wa,-foo"},
-	{"-W@foo"},
-	{"-g@gdb"},
-	{"-g-gdb"},
-	{"-march=@dawn"},
-	{"-march=-dawn"},
-	{"-std=@c99"},
-	{"-std=-c99"},
-	{"-x@c"},
-	{"-x-c"},
-	{"-D", "@foo"},
-	{"-D", "-foo"},
-	{"-I", "@foo"},
-	{"-I", "-foo"},
-	{"-l", "@foo"},
-	{"-l", "-foo"},
-	{"-framework", "-Caffeine"},
-	{"-framework", "@Home"},
-	{"-Wl,-framework,-Caffeine"},
-	{"-Wl,-framework", "-Wl,@Home"},
-	{"-Wl,-framework", "@Home"},
-	{"-Wl,-framework,Chocolate,@Home"},
-	{"-x", "--c"},
-	{"-x", "@obj"},
-	{"-Wl,-rpath,@foo"},
-	{"-Wl,-R,foo,bar"},
-	{"-Wl,-R,@foo"},
-	{"-Wl,--just-symbols,@foo"},
-	{"../x.o"},
-}
-
-func TestCheckLinkerFlags(t *testing.T) {
-	for _, f := range goodLinkerFlags {
-		if err := checkLinkerFlags("test", f); err != nil {
-			t.Errorf("unexpected error for %q: %v", f, err)
-		}
-	}
-	for _, f := range badLinkerFlags {
-		if err := checkLinkerFlags("test", f); err == nil {
-			t.Errorf("missing error for %q", f)
-		}
-	}
-}
-
-func TestCheckFlagAllowDisallow(t *testing.T) {
-	if err := checkCompilerFlags("TEST", []string{"-disallow"}); err == nil {
-		t.Fatalf("missing error for -disallow")
-	}
-	os.Setenv("CGO_TEST_ALLOW", "-disallo")
-	if err := checkCompilerFlags("TEST", []string{"-disallow"}); err == nil {
-		t.Fatalf("missing error for -disallow with CGO_TEST_ALLOW=-disallo")
-	}
-	os.Setenv("CGO_TEST_ALLOW", "-disallow")
-	if err := checkCompilerFlags("TEST", []string{"-disallow"}); err != nil {
-		t.Fatalf("unexpected error for -disallow with CGO_TEST_ALLOW=-disallow: %v", err)
-	}
-	os.Unsetenv("CGO_TEST_ALLOW")
-
-	if err := checkCompilerFlags("TEST", []string{"-Wall"}); err != nil {
-		t.Fatalf("unexpected error for -Wall: %v", err)
-	}
-	os.Setenv("CGO_TEST_DISALLOW", "-Wall")
-	if err := checkCompilerFlags("TEST", []string{"-Wall"}); err == nil {
-		t.Fatalf("missing error for -Wall with CGO_TEST_DISALLOW=-Wall")
-	}
-	os.Setenv("CGO_TEST_ALLOW", "-Wall") // disallow wins
-	if err := checkCompilerFlags("TEST", []string{"-Wall"}); err == nil {
-		t.Fatalf("missing error for -Wall with CGO_TEST_DISALLOW=-Wall and CGO_TEST_ALLOW=-Wall")
-	}
-
-	os.Setenv("CGO_TEST_ALLOW", "-fplugin.*")
-	os.Setenv("CGO_TEST_DISALLOW", "-fplugin=lint.so")
-	if err := checkCompilerFlags("TEST", []string{"-fplugin=faster.so"}); err != nil {
-		t.Fatalf("unexpected error for -fplugin=faster.so: %v", err)
-	}
-	if err := checkCompilerFlags("TEST", []string{"-fplugin=lint.so"}); err == nil {
-		t.Fatalf("missing error for -fplugin=lint.so: %v", err)
-	}
-}

cgo/sync.go

@@ -12,17 +12,17 @@ import "C"
 // C. It is useful if an API uses function pointers and you cannot pass a Go
 // pointer but only a C pointer.
 type refMap struct {
-	refs map[unsafe.Pointer]any
+	refs map[unsafe.Pointer]interface{}
 	lock sync.Mutex
 }
 
 // Put stores a value in the map. It can later be retrieved using Get. It must
 // be removed using Remove to avoid memory leaks.
-func (m *refMap) Put(v any) unsafe.Pointer {
+func (m *refMap) Put(v interface{}) unsafe.Pointer {
 	m.lock.Lock()
 	defer m.lock.Unlock()
 	if m.refs == nil {
-		m.refs = make(map[unsafe.Pointer]any, 1)
+		m.refs = make(map[unsafe.Pointer]interface{}, 1)
 	}
 	ref := C.malloc(1)
 	m.refs[ref] = v
@@ -31,7 +31,7 @@ func (m *refMap) Put(v any) unsafe.Pointer {
 
 // Get returns a stored value previously inserted with Put. Use the same
 // reference as you got from Put.
-func (m *refMap) Get(ref unsafe.Pointer) any {
+func (m *refMap) Get(ref unsafe.Pointer) interface{} {
 	m.lock.Lock()
 	defer m.lock.Unlock()
 	return m.refs[ref]

cgo/testdata/basic.go

@@ -1,3 +0,0 @@
-package main
-
-import "C"

cgo/testdata/basic.out.go

@@ -1,54 +0,0 @@
-package main
-
-import "syscall"
-import "unsafe"
-
-var _ unsafe.Pointer
-
-//go:linkname _Cgo_CString runtime.cgo_CString
-func _Cgo_CString(string) *_Cgo_char
-
-//go:linkname _Cgo_GoString runtime.cgo_GoString
-func _Cgo_GoString(*_Cgo_char) string
-
-//go:linkname _Cgo___GoStringN runtime.cgo_GoStringN
-func _Cgo___GoStringN(*_Cgo_char, uintptr) string
-
-func _Cgo_GoStringN(cstr *_Cgo_char, length _Cgo_int) string {
-	return _Cgo___GoStringN(cstr, uintptr(length))
-}
-
-//go:linkname _Cgo___GoBytes runtime.cgo_GoBytes
-func _Cgo___GoBytes(unsafe.Pointer, uintptr) []byte
-
-func _Cgo_GoBytes(ptr unsafe.Pointer, length _Cgo_int) []byte {
-	return _Cgo___GoBytes(ptr, uintptr(length))
-}
-
-//go:linkname _Cgo___CBytes runtime.cgo_CBytes
-func _Cgo___CBytes([]byte) unsafe.Pointer
-
-func _Cgo_CBytes(b []byte) unsafe.Pointer {
-	return _Cgo___CBytes(b)
-}
-
-//go:linkname _Cgo___get_errno_num runtime.cgo_errno
-func _Cgo___get_errno_num() uintptr
-
-func _Cgo___get_errno() error {
-	return syscall.Errno(_Cgo___get_errno_num())
-}
-
-type (
-	_Cgo_char      uint8
-	_Cgo_schar     int8
-	_Cgo_uchar     uint8
-	_Cgo_short     int16
-	_Cgo_ushort    uint16
-	_Cgo_int       int32
-	_Cgo_uint      uint32
-	_Cgo_long      int32
-	_Cgo_ulong     uint32
-	_Cgo_longlong  int64
-	_Cgo_ulonglong uint64
-)

cgo/testdata/const.go

@@ -1,28 +0,0 @@
-package main
-
-/*
-#define foo 3
-#define bar foo
-
-#define unreferenced 4
-#define referenced unreferenced
-
-#define fnlike() 5
-#define fnlike_val fnlike()
-#define square(n) (n*n)
-#define square_val square(20)
-#define add(a, b) (a + b)
-#define add_val add(3, 5)
-*/
-import "C"
-
-const (
-	Foo = C.foo
-	Bar = C.bar
-
-	Baz = C.referenced
-
-	fnlike = C.fnlike_val
-	square = C.square_val
-	add    = C.add_val
-)

cgo/testdata/const.out.go

@@ -1,62 +0,0 @@
-package main
-
-import "syscall"
-import "unsafe"
-
-var _ unsafe.Pointer
-
-//go:linkname _Cgo_CString runtime.cgo_CString
-func _Cgo_CString(string) *_Cgo_char
-
-//go:linkname _Cgo_GoString runtime.cgo_GoString
-func _Cgo_GoString(*_Cgo_char) string
-
-//go:linkname _Cgo___GoStringN runtime.cgo_GoStringN
-func _Cgo___GoStringN(*_Cgo_char, uintptr) string
-
-func _Cgo_GoStringN(cstr *_Cgo_char, length _Cgo_int) string {
-	return _Cgo___GoStringN(cstr, uintptr(length))
-}
-
-//go:linkname _Cgo___GoBytes runtime.cgo_GoBytes
-func _Cgo___GoBytes(unsafe.Pointer, uintptr) []byte
-
-func _Cgo_GoBytes(ptr unsafe.Pointer, length _Cgo_int) []byte {
-	return _Cgo___GoBytes(ptr, uintptr(length))
-}
-
-//go:linkname _Cgo___CBytes runtime.cgo_CBytes
-func _Cgo___CBytes([]byte) unsafe.Pointer
-
-func _Cgo_CBytes(b []byte) unsafe.Pointer {
-	return _Cgo___CBytes(b)
-}
-
-//go:linkname _Cgo___get_errno_num runtime.cgo_errno
-func _Cgo___get_errno_num() uintptr
-
-func _Cgo___get_errno() error {
-	return syscall.Errno(_Cgo___get_errno_num())
-}
-
-type (
-	_Cgo_char      uint8
-	_Cgo_schar     int8
-	_Cgo_uchar     uint8
-	_Cgo_short     int16
-	_Cgo_ushort    uint16
-	_Cgo_int       int32
-	_Cgo_uint      uint32
-	_Cgo_long      int32
-	_Cgo_ulong     uint32
-	_Cgo_longlong  int64
-	_Cgo_ulonglong uint64
-)
-
-const _Cgo_foo = 3
-const _Cgo_bar = _Cgo_foo
-const _Cgo_unreferenced = 4
-const _Cgo_referenced = _Cgo_unreferenced
-const _Cgo_fnlike_val = 5
-const _Cgo_square_val = (20 * 20)
-const _Cgo_add_val = (3 + 5)

cgo/testdata/errors.go

@@ -1,67 +0,0 @@
-package main
-
-/*
-#warning some warning
-
-typedef struct {
-	int x;
-	int y;
-} point_t;
-
-typedef someType noType; // undefined type
-
-// Some invalid noescape lines
-#cgo noescape
-#cgo noescape foo bar
-#cgo noescape unusedFunction
-
-#define SOME_CONST_1 5) // invalid const syntax
-#define SOME_CONST_2 6) // const not used (so no error)
-#define SOME_CONST_3 1234 // const too large for byte
-#define   SOME_CONST_b      3   ) // const with lots of weird whitespace (to test error locations)
-#  define SOME_CONST_startspace 3)
-*/
-//
-//
-// #define SOME_CONST_4 8) // after some empty lines
-// #cgo CFLAGS: -DSOME_PARAM_CONST_invalid=3/+3
-// #cgo CFLAGS: -DSOME_PARAM_CONST_valid=3+4
-import "C"
-
-// #warning another warning
-import "C"
-
-// #define add(a, b) (a+b)
-// #define add_toomuch add(1, 2, 3)
-// #define add_toolittle add(1)
-import "C"
-
-// Make sure that errors for the following lines won't change with future
-// additions to the CGo preamble.
-//
-//line errors.go:100
-var (
-	// constant too large
-	_ C.char = 2 << 10
-
-	// z member does not exist
-	_ C.point_t = C.point_t{z: 3}
-
-	// constant has syntax error
-	_ = C.SOME_CONST_1
-
-	_ byte = C.SOME_CONST_3
-
-	_ = C.SOME_CONST_4
-
-	_ = C.SOME_CONST_b
-
-	_ = C.SOME_CONST_startspace
-
-	// constants passed by a command line parameter
-	_ = C.SOME_PARAM_CONST_invalid
-	_ = C.SOME_PARAM_CONST_valid
-
-	_ = C.add_toomuch
-	_ = C.add_toolittle
-)

cgo/testdata/errors.out.go

@@ -1,89 +0,0 @@
-// CGo errors:
-//     testdata/errors.go:14:1: missing function name in #cgo noescape line
-//     testdata/errors.go:15:1: multiple function names in #cgo noescape line
-//     testdata/errors.go:4:2: warning: some warning
-//     testdata/errors.go:11:9: error: unknown type name 'someType'
-//     testdata/errors.go:31:5: warning: another warning
-//     testdata/errors.go:18:23: unexpected token ), expected end of expression
-//     testdata/errors.go:26:26: unexpected token ), expected end of expression
-//     testdata/errors.go:21:33: unexpected token ), expected end of expression
-//     testdata/errors.go:22:34: unexpected token ), expected end of expression
-//     -: unexpected token INT, expected end of expression
-//     testdata/errors.go:35:35: unexpected number of parameters: expected 2, got 3
-//     testdata/errors.go:36:31: unexpected number of parameters: expected 2, got 1
-//     testdata/errors.go:3:1: function "unusedFunction" in #cgo noescape line is not used
-
-// Type checking errors after CGo processing:
-//     testdata/errors.go:102: cannot use 2 << 10 (untyped int constant 2048) as _Cgo_char value in variable declaration (overflows)
-//     testdata/errors.go:105: unknown field z in struct literal
-//     testdata/errors.go:108: undefined: _Cgo_SOME_CONST_1
-//     testdata/errors.go:110: cannot use _Cgo_SOME_CONST_3 (untyped int constant 1234) as byte value in variable declaration (overflows)
-//     testdata/errors.go:112: undefined: _Cgo_SOME_CONST_4
-//     testdata/errors.go:114: undefined: _Cgo_SOME_CONST_b
-//     testdata/errors.go:116: undefined: _Cgo_SOME_CONST_startspace
-//     testdata/errors.go:119: undefined: _Cgo_SOME_PARAM_CONST_invalid
-//     testdata/errors.go:122: undefined: _Cgo_add_toomuch
-//     testdata/errors.go:123: undefined: _Cgo_add_toolittle
-
-package main
-
-import "syscall"
-import "unsafe"
-
-var _ unsafe.Pointer
-
-//go:linkname _Cgo_CString runtime.cgo_CString
-func _Cgo_CString(string) *_Cgo_char
-
-//go:linkname _Cgo_GoString runtime.cgo_GoString
-func _Cgo_GoString(*_Cgo_char) string
-
-//go:linkname _Cgo___GoStringN runtime.cgo_GoStringN
-func _Cgo___GoStringN(*_Cgo_char, uintptr) string
-
-func _Cgo_GoStringN(cstr *_Cgo_char, length _Cgo_int) string {
-	return _Cgo___GoStringN(cstr, uintptr(length))
-}
-
-//go:linkname _Cgo___GoBytes runtime.cgo_GoBytes
-func _Cgo___GoBytes(unsafe.Pointer, uintptr) []byte
-
-func _Cgo_GoBytes(ptr unsafe.Pointer, length _Cgo_int) []byte {
-	return _Cgo___GoBytes(ptr, uintptr(length))
-}
-
-//go:linkname _Cgo___CBytes runtime.cgo_CBytes
-func _Cgo___CBytes([]byte) unsafe.Pointer
-
-func _Cgo_CBytes(b []byte) unsafe.Pointer {
-	return _Cgo___CBytes(b)
-}
-
-//go:linkname _Cgo___get_errno_num runtime.cgo_errno
-func _Cgo___get_errno_num() uintptr
-
-func _Cgo___get_errno() error {
-	return syscall.Errno(_Cgo___get_errno_num())
-}
-
-type (
-	_Cgo_char      uint8
-	_Cgo_schar     int8
-	_Cgo_uchar     uint8
-	_Cgo_short     int16
-	_Cgo_ushort    uint16
-	_Cgo_int       int32
-	_Cgo_uint      uint32
-	_Cgo_long      int32
-	_Cgo_ulong     uint32
-	_Cgo_longlong  int64
-	_Cgo_ulonglong uint64
-)
-type _Cgo_struct_point_t struct {
-	x _Cgo_int
-	y _Cgo_int
-}
-type _Cgo_point_t = _Cgo_struct_point_t
-
-const _Cgo_SOME_CONST_3 = 1234
-const _Cgo_SOME_PARAM_CONST_valid = 3 + 4

cgo/testdata/flags.go

@@ -1,37 +0,0 @@
-package main
-
-/*
-// this name doesn't exist
-#cgo  NOFLAGS: -foo
-
-// unknown flag
-#cgo CFLAGS: -fdoes-not-exist -DNOTDEFINED
-
-#cgo CFLAGS: -DFOO
-
-#cgo CFLAGS: -Iinclude
-#include "foo.h"
-
-#if defined(FOO)
-#define BAR 3
-#else
-#define BAR 5
-#endif
-
-#if defined(NOTDEFINED)
-#warning flag must not be defined
-#endif
-
-// Check Compiler flags
-#cgo LDFLAGS: -lc
-
-// This flag is not valid ldflags
-#cgo LDFLAGS: -does-not-exists
-
-*/
-import "C"
-
-var (
-	_ = C.BAR
-	_ = C.FOO_H
-)

cgo/testdata/flags.out.go

@@ -1,62 +0,0 @@
-// CGo errors:
-//     testdata/flags.go:5:7: invalid #cgo line: NOFLAGS
-//     testdata/flags.go:8:13: invalid flag: -fdoes-not-exist
-//     testdata/flags.go:29:14: invalid flag: -does-not-exists
-
-package main
-
-import "syscall"
-import "unsafe"
-
-var _ unsafe.Pointer
-
-//go:linkname _Cgo_CString runtime.cgo_CString
-func _Cgo_CString(string) *_Cgo_char
-
-//go:linkname _Cgo_GoString runtime.cgo_GoString
-func _Cgo_GoString(*_Cgo_char) string
-
-//go:linkname _Cgo___GoStringN runtime.cgo_GoStringN
-func _Cgo___GoStringN(*_Cgo_char, uintptr) string
-
-func _Cgo_GoStringN(cstr *_Cgo_char, length _Cgo_int) string {
-	return _Cgo___GoStringN(cstr, uintptr(length))
-}
-
-//go:linkname _Cgo___GoBytes runtime.cgo_GoBytes
-func _Cgo___GoBytes(unsafe.Pointer, uintptr) []byte
-
-func _Cgo_GoBytes(ptr unsafe.Pointer, length _Cgo_int) []byte {
-	return _Cgo___GoBytes(ptr, uintptr(length))
-}
-
-//go:linkname _Cgo___CBytes runtime.cgo_CBytes
-func _Cgo___CBytes([]byte) unsafe.Pointer
-
-func _Cgo_CBytes(b []byte) unsafe.Pointer {
-	return _Cgo___CBytes(b)
-}
-
-//go:linkname _Cgo___get_errno_num runtime.cgo_errno
-func _Cgo___get_errno_num() uintptr
-
-func _Cgo___get_errno() error {
-	return syscall.Errno(_Cgo___get_errno_num())
-}
-
-type (
-	_Cgo_char      uint8
-	_Cgo_schar     int8
-	_Cgo_uchar     uint8
-	_Cgo_short     int16
-	_Cgo_ushort    uint16
-	_Cgo_int       int32
-	_Cgo_uint      uint32
-	_Cgo_long      int32
-	_Cgo_ulong     uint32
-	_Cgo_longlong  int64
-	_Cgo_ulonglong uint64
-)
-
-const _Cgo_BAR = 3
-const _Cgo_FOO_H = 1

cgo/testdata/include/foo.h

@@ -1 +0,0 @@
-#define FOO_H 1

cgo/testdata/symbols.go

@@ -1,30 +0,0 @@
-package main
-
-/*
-// Function signatures.
-int foo(int a, int b);
-void variadic0();
-void variadic2(int x, int y, ...);
-static void staticfunc(int x);
-
-// Global variable signatures.
-extern int someValue;
-
-void notEscapingFunction(int *a);
-
-#cgo noescape notEscapingFunction
-*/
-import "C"
-
-// Test function signatures.
-func accessFunctions() {
-	C.foo(3, 4)
-	C.variadic0()
-	C.variadic2(3, 5)
-	C.staticfunc(3)
-	C.notEscapingFunction(nil)
-}
-
-func accessGlobals() {
-	_ = C.someValue
-}

cgo/testdata/symbols.out.go

@@ -1,84 +0,0 @@
-package main
-
-import "syscall"
-import "unsafe"
-
-var _ unsafe.Pointer
-
-//go:linkname _Cgo_CString runtime.cgo_CString
-func _Cgo_CString(string) *_Cgo_char
-
-//go:linkname _Cgo_GoString runtime.cgo_GoString
-func _Cgo_GoString(*_Cgo_char) string
-
-//go:linkname _Cgo___GoStringN runtime.cgo_GoStringN
-func _Cgo___GoStringN(*_Cgo_char, uintptr) string
-
-func _Cgo_GoStringN(cstr *_Cgo_char, length _Cgo_int) string {
-	return _Cgo___GoStringN(cstr, uintptr(length))
-}
-
-//go:linkname _Cgo___GoBytes runtime.cgo_GoBytes
-func _Cgo___GoBytes(unsafe.Pointer, uintptr) []byte
-
-func _Cgo_GoBytes(ptr unsafe.Pointer, length _Cgo_int) []byte {
-	return _Cgo___GoBytes(ptr, uintptr(length))
-}
-
-//go:linkname _Cgo___CBytes runtime.cgo_CBytes
-func _Cgo___CBytes([]byte) unsafe.Pointer
-
-func _Cgo_CBytes(b []byte) unsafe.Pointer {
-	return _Cgo___CBytes(b)
-}
-
-//go:linkname _Cgo___get_errno_num runtime.cgo_errno
-func _Cgo___get_errno_num() uintptr
-
-func _Cgo___get_errno() error {
-	return syscall.Errno(_Cgo___get_errno_num())
-}
-
-type (
-	_Cgo_char      uint8
-	_Cgo_schar     int8
-	_Cgo_uchar     uint8
-	_Cgo_short     int16
-	_Cgo_ushort    uint16
-	_Cgo_int       int32
-	_Cgo_uint      uint32
-	_Cgo_long      int32
-	_Cgo_ulong     uint32
-	_Cgo_longlong  int64
-	_Cgo_ulonglong uint64
-)
-
-//export foo
-func _Cgo_foo(a _Cgo_int, b _Cgo_int) _Cgo_int
-
-var _Cgo_foo$funcaddr unsafe.Pointer
-
-//export variadic0
-//go:variadic
-func _Cgo_variadic0()
-
-var _Cgo_variadic0$funcaddr unsafe.Pointer
-
-//export variadic2
-//go:variadic
-func _Cgo_variadic2(x _Cgo_int, y _Cgo_int)
-
-var _Cgo_variadic2$funcaddr unsafe.Pointer
-
-//export _Cgo_static_173c95a79b6df1980521_staticfunc
-func _Cgo_staticfunc!symbols.go(x _Cgo_int)
-
-var _Cgo_staticfunc!symbols.go$funcaddr unsafe.Pointer
-
-//export notEscapingFunction
-//go:noescape
-func _Cgo_notEscapingFunction(a *_Cgo_int)
-
-var _Cgo_notEscapingFunction$funcaddr unsafe.Pointer
-//go:extern someValue
-var _Cgo_someValue _Cgo_int

cgo/testdata/types.go

@@ -1,173 +0,0 @@
-package main
-
-/*
-// Simple typedef.
-typedef int myint;
-
-// Structs, with or without name.
-typedef struct {
-	int x;
-	int y;
-} point2d_t;
-typedef struct point3d {
-	int x;
-	int y;
-	int z;
-} point3d_t;
-
-// Structs with reserved field names.
-struct type1 {
-	// All these fields should be renamed.
-	int type;
-	int _type;
-	int __type;
-};
-struct type2 {
-	// This field should not be renamed.
-	int _type;
-};
-
-// Unions.
-typedef union {
-	// Union should be treated as a struct.
-	int i;
-} union1_t;
-typedef union {
-	// Union must contain a single field and have special getters/setters.
-	int    i;
-	double d;
-	short  s;
-} union3_t;
-typedef union union2d {
-	int i;
-	double d[2];
-} union2d_t;
-typedef union {
-	unsigned char arr[10];
-} unionarray_t;
-
-// Nested structs and unions.
-typedef struct {
-	point2d_t begin;
-	point2d_t end;
-	int       tag;
-	union {
-		point2d_t area;
-		point3d_t solid;
-	} coord;
-} struct_nested_t;
-typedef union {
-	point3d_t    point;
-	unionarray_t array;
-	union3_t     thing;
-} union_nested_t;
-
-// Enums. These define constant numbers. All these constants must be given the
-// correct number.
-typedef enum option {
-	optionA,
-	optionB,
-	optionC = -5,
-	optionD,
-	optionE = 10,
-	optionF,
-	optionG,
-} option_t;
-enum unused {
-	unused1 = 5,
-};
-
-// Anonymous enum.
-typedef enum {
-	option2A = 20,
-} option2_t;
-
-// Various types that are usually translated directly to Go types, but storing
-// them in a struct reveals them.
-typedef struct {
-	float  f;
-	double d;
-	int    *ptr;
-} types_t;
-
-// Arrays.
-typedef int myIntArray[10];
-
-// Bitfields.
-typedef struct {
-	unsigned char start;
-	unsigned char a : 5;
-	unsigned char b : 1;
-	unsigned char c : 2;
-	unsigned char :0; // new field
-	unsigned char d : 6;
-	unsigned char e : 3;
-	// Note that C++ allows bitfields bigger than the underlying type.
-} bitfield_t;
-*/
-import "C"
-
-// // Test that we can refer from this CGo fragment to the fragment above.
-// typedef myint myint2;
-import "C"
-
-var (
-	// aliases
-	_ C.float
-	_ C.double
-
-	// Simple typedefs.
-	_ C.myint
-
-	// Structs.
-	_ C.point2d_t
-	_ C.point3d_t
-	_ C.struct_point3d
-
-	// Structs with reserved field names.
-	_ C.struct_type1
-	_ C.struct_type2
-
-	// Unions.
-	_ C.union1_t
-	_ C.union3_t
-	_ C.union2d_t
-	_ C.unionarray_t
-
-	// Nested structs and unions.
-	_ C.struct_nested_t
-	_ C.union_nested_t
-
-	// Enums (anonymous and named).
-	_ C.option_t
-	_ C.enum_option
-	_ C.option2_t
-
-	// Various types.
-	_ C.types_t
-
-	// Arrays.
-	_ C.myIntArray
-)
-
-// Test bitfield accesses.
-func accessBitfields() {
-	var x C.bitfield_t
-	x.start = 3
-	x.set_bitfield_a(4)
-	x.set_bitfield_b(1)
-	x.set_bitfield_c(2)
-	x.d = 10
-	x.e = 5
-	var _ C.uchar = x.bitfield_a()
-}
-
-// Test union accesses.
-func accessUnion() {
-	var union1 C.union1_t
-	union1.i = 5
-
-	var union2d C.union2d_t
-	var _ *C.int = union2d.unionfield_i()
-	var _ *[2]float64 = union2d.unionfield_d()
-}

cgo/testdata/types.out.go

@@ -1,166 +0,0 @@
-package main
-
-import "syscall"
-import "unsafe"
-
-var _ unsafe.Pointer
-
-//go:linkname _Cgo_CString runtime.cgo_CString
-func _Cgo_CString(string) *_Cgo_char
-
-//go:linkname _Cgo_GoString runtime.cgo_GoString
-func _Cgo_GoString(*_Cgo_char) string
-
-//go:linkname _Cgo___GoStringN runtime.cgo_GoStringN
-func _Cgo___GoStringN(*_Cgo_char, uintptr) string
-
-func _Cgo_GoStringN(cstr *_Cgo_char, length _Cgo_int) string {
-	return _Cgo___GoStringN(cstr, uintptr(length))
-}
-
-//go:linkname _Cgo___GoBytes runtime.cgo_GoBytes
-func _Cgo___GoBytes(unsafe.Pointer, uintptr) []byte
-
-func _Cgo_GoBytes(ptr unsafe.Pointer, length _Cgo_int) []byte {
-	return _Cgo___GoBytes(ptr, uintptr(length))
-}
-
-//go:linkname _Cgo___CBytes runtime.cgo_CBytes
-func _Cgo___CBytes([]byte) unsafe.Pointer
-
-func _Cgo_CBytes(b []byte) unsafe.Pointer {
-	return _Cgo___CBytes(b)
-}
-
-//go:linkname _Cgo___get_errno_num runtime.cgo_errno
-func _Cgo___get_errno_num() uintptr
-
-func _Cgo___get_errno() error {
-	return syscall.Errno(_Cgo___get_errno_num())
-}
-
-type (
-	_Cgo_char      uint8
-	_Cgo_schar     int8
-	_Cgo_uchar     uint8
-	_Cgo_short     int16
-	_Cgo_ushort    uint16
-	_Cgo_int       int32
-	_Cgo_uint      uint32
-	_Cgo_long      int32
-	_Cgo_ulong     uint32
-	_Cgo_longlong  int64
-	_Cgo_ulonglong uint64
-)
-type _Cgo_myint = _Cgo_int
-type _Cgo_struct_point2d_t struct {
-	x _Cgo_int
-	y _Cgo_int
-}
-type _Cgo_point2d_t = _Cgo_struct_point2d_t
-type _Cgo_struct_point3d struct {
-	x _Cgo_int
-	y _Cgo_int
-	z _Cgo_int
-}
-type _Cgo_point3d_t = _Cgo_struct_point3d
-type _Cgo_struct_type1 struct {
-	_type   _Cgo_int
-	__type  _Cgo_int
-	___type _Cgo_int
-}
-type _Cgo_struct_type2 struct{ _type _Cgo_int }
-type _Cgo_union_union1_t struct{ i _Cgo_int }
-type _Cgo_union1_t = _Cgo_union_union1_t
-type _Cgo_union_union3_t struct{ $union uint64 }
-
-func (union *_Cgo_union_union3_t) unionfield_i() *_Cgo_int {
-	return (*_Cgo_int)(unsafe.Pointer(&union.$union))
-}
-func (union *_Cgo_union_union3_t) unionfield_d() *float64 {
-	return (*float64)(unsafe.Pointer(&union.$union))
-}
-func (union *_Cgo_union_union3_t) unionfield_s() *_Cgo_short {
-	return (*_Cgo_short)(unsafe.Pointer(&union.$union))
-}
-
-type _Cgo_union3_t = _Cgo_union_union3_t
-type _Cgo_union_union2d struct{ $union [2]uint64 }
-
-func (union *_Cgo_union_union2d) unionfield_i() *_Cgo_int {
-	return (*_Cgo_int)(unsafe.Pointer(&union.$union))
-}
-func (union *_Cgo_union_union2d) unionfield_d() *[2]float64 {
-	return (*[2]float64)(unsafe.Pointer(&union.$union))
-}
-
-type _Cgo_union2d_t = _Cgo_union_union2d
-type _Cgo_union_unionarray_t struct{ arr [10]_Cgo_uchar }
-type _Cgo_unionarray_t = _Cgo_union_unionarray_t
-type _Cgo__Ctype_union___0 struct{ $union [3]uint32 }
-
-func (union *_Cgo__Ctype_union___0) unionfield_area() *_Cgo_point2d_t {
-	return (*_Cgo_point2d_t)(unsafe.Pointer(&union.$union))
-}
-func (union *_Cgo__Ctype_union___0) unionfield_solid() *_Cgo_point3d_t {
-	return (*_Cgo_point3d_t)(unsafe.Pointer(&union.$union))
-}
-
-type _Cgo_struct_struct_nested_t struct {
-	begin _Cgo_point2d_t
-	end   _Cgo_point2d_t
-	tag   _Cgo_int
-
-	coord _Cgo__Ctype_union___0
-}
-type _Cgo_struct_nested_t = _Cgo_struct_struct_nested_t
-type _Cgo_union_union_nested_t struct{ $union [2]uint64 }
-
-func (union *_Cgo_union_union_nested_t) unionfield_point() *_Cgo_point3d_t {
-	return (*_Cgo_point3d_t)(unsafe.Pointer(&union.$union))
-}
-func (union *_Cgo_union_union_nested_t) unionfield_array() *_Cgo_unionarray_t {
-	return (*_Cgo_unionarray_t)(unsafe.Pointer(&union.$union))
-}
-func (union *_Cgo_union_union_nested_t) unionfield_thing() *_Cgo_union3_t {
-	return (*_Cgo_union3_t)(unsafe.Pointer(&union.$union))
-}
-
-type _Cgo_union_nested_t = _Cgo_union_union_nested_t
-type _Cgo_enum_option = _Cgo_int
-type _Cgo_option_t = _Cgo_enum_option
-type _Cgo_enum_option2_t = _Cgo_uint
-type _Cgo_option2_t = _Cgo_enum_option2_t
-type _Cgo_struct_types_t struct {
-	f   float32
-	d   float64
-	ptr *_Cgo_int
-}
-type _Cgo_types_t = _Cgo_struct_types_t
-type _Cgo_myIntArray = [10]_Cgo_int
-type _Cgo_struct_bitfield_t struct {
-	start        _Cgo_uchar
-	__bitfield_1 _Cgo_uchar
-
-	d _Cgo_uchar
-	e _Cgo_uchar
-}
-
-func (s *_Cgo_struct_bitfield_t) bitfield_a() _Cgo_uchar { return s.__bitfield_1 & 0x1f }
-func (s *_Cgo_struct_bitfield_t) set_bitfield_a(value _Cgo_uchar) {
-	s.__bitfield_1 = s.__bitfield_1&^0x1f | value&0x1f<<0
-}
-func (s *_Cgo_struct_bitfield_t) bitfield_b() _Cgo_uchar {
-	return s.__bitfield_1 >> 5 & 0x1
-}
-func (s *_Cgo_struct_bitfield_t) set_bitfield_b(value _Cgo_uchar) {
-	s.__bitfield_1 = s.__bitfield_1&^0x20 | value&0x1<<5
-}
-func (s *_Cgo_struct_bitfield_t) bitfield_c() _Cgo_uchar {
-	return s.__bitfield_1 >> 6
-}
-func (s *_Cgo_struct_bitfield_t) set_bitfield_c(value _Cgo_uchar,
-
-) { s.__bitfield_1 = s.__bitfield_1&0x3f | value<<6 }
-
-type _Cgo_bitfield_t = _Cgo_struct_bitfield_t

commands.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"errors"
+	"os"
+	"os/exec"
+	"runtime"
+	"strings"
+)
+
+// Commands used by the compilation process might have different file names
+// across operating systems and distributions.
+var commands = map[string][]string{
+	"clang":   {"clang-8"},
+	"ld.lld":  {"ld.lld-8", "ld.lld"},
+	"wasm-ld": {"wasm-ld-8", "wasm-ld"},
+}
+
+func init() {
+	// Add the path to a Homebrew-installed LLVM 8 for ease of use (no need to
+	// manually set $PATH).
+	if runtime.GOOS == "darwin" {
+		commands["clang"] = append(commands["clang"], "/usr/local/opt/llvm/bin/clang-8")
+		commands["ld.lld"] = append(commands["ld.lld"], "/usr/local/opt/llvm/bin/ld.lld")
+		commands["wasm-ld"] = append(commands["wasm-ld"], "/usr/local/opt/llvm/bin/wasm-ld")
+	}
+}
+
+func execCommand(cmdNames []string, args ...string) error {
+	for _, cmdName := range cmdNames {
+		cmd := exec.Command(cmdName, args...)
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		err := cmd.Run()
+		if err != nil {
+			if err, ok := err.(*exec.Error); ok && err.Err == exec.ErrNotFound {
+				// this command was not found, try the next
+				continue
+			}
+			return err
+		}
+		return nil
+	}
+	return errors.New("none of these commands were found in your $PATH: " + strings.Join(cmdNames, " "))
+}

compileopts/config.go

@@ -1,675 +0,0 @@
-// Package compileopts contains the configuration for a single to-be-built
-// binary.
-package compileopts
-
-import (
-	"errors"
-	"fmt"
-	"os"
-	"path/filepath"
-	"regexp"
-	"slices"
-	"strconv"
-	"strings"
-
-	"github.com/google/shlex"
-	"github.com/tinygo-org/tinygo/goenv"
-)
-
-// Library versions. Whenever an existing library is changed, this number should
-// be added/increased so that existing caches are invalidated.
-//
-// (This is a bit of a layering violation, this should really be part of the
-// builder.Library struct but that's hard to do since we want to know the
-// library path in advance in several places).
-var libVersions = map[string]int{
-	"musl":  3,
-	"bdwgc": 2,
-}
-
-// Config keeps all configuration affecting the build in a single struct.
-type Config struct {
-	Options        *Options
-	Target         *TargetSpec
-	GoMinorVersion int
-	TestConfig     TestConfig
-}
-
-// Triple returns the LLVM target triple, like armv6m-unknown-unknown-eabi.
-func (c *Config) Triple() string {
-	return c.Target.Triple
-}
-
-// CPU returns the LLVM CPU name, like atmega328p or arm7tdmi. It may return an
-// empty string if the CPU name is not known.
-func (c *Config) CPU() string {
-	return c.Target.CPU
-}
-
-// The current build mode (like the `-buildmode` command line flag).
-func (c *Config) BuildMode() string {
-	if c.Options.BuildMode != "" {
-		return c.Options.BuildMode
-	}
-	if c.Target.BuildMode != "" {
-		return c.Target.BuildMode
-	}
-	return "default"
-}
-
-// Features returns a list of features this CPU supports. For example, for a
-// RISC-V processor, that could be "+a,+c,+m". For many targets, an empty list
-// will be returned.
-func (c *Config) Features() string {
-	var features string
-	if c.Target.Features == "" {
-		features = c.Options.LLVMFeatures
-	} else if c.Options.LLVMFeatures == "" {
-		features = c.Target.Features
-	} else {
-		features = c.Target.Features + "," + c.Options.LLVMFeatures
-	}
-	return patchFeatures(features)
-}
-
-// ABI returns the -mabi= flag for this target (like -mabi=lp64). A zero-length
-// string is returned if the target doesn't specify an ABI.
-func (c *Config) ABI() string {
-	return c.Target.ABI
-}
-
-// GOOS returns the GOOS of the target. This might not always be the actual OS:
-// for example, bare-metal targets will usually pretend to be linux to get the
-// standard library to compile.
-func (c *Config) GOOS() string {
-	return c.Target.GOOS
-}
-
-// GOARCH returns the GOARCH of the target. This might not always be the actual
-// architecture: for example, the AVR target is not supported by the Go standard
-// library so such targets will usually pretend to be linux/arm.
-func (c *Config) GOARCH() string {
-	return c.Target.GOARCH
-}
-
-// GOARM will return the GOARM environment variable given to the compiler when
-// building a program.
-func (c *Config) GOARM() string {
-	return c.Options.GOARM
-}
-
-// GOMIPS will return the GOMIPS environment variable given to the compiler when
-// building a program.
-func (c *Config) GOMIPS() string {
-	return c.Options.GOMIPS
-}
-
-// BuildTags returns the complete list of build tags used during this build.
-func (c *Config) BuildTags() []string {
-	tags := append([]string(nil), c.Target.BuildTags...) // copy slice (avoid a race)
-	tags = append(tags, []string{
-		"tinygo",                                     // that's the compiler
-		"purego",                                     // to get various crypto packages to work
-		"osusergo",                                   // to get os/user to work
-		"math_big_pure_go",                           // to get math/big to work
-		"gc." + c.GC(), "scheduler." + c.Scheduler(), // used inside the runtime package
-		"serial." + c.Serial()}...) // used inside the machine package
-	switch c.Scheduler() {
-	case "threads", "cores":
-	default:
-		tags = append(tags, "tinygo.unicore")
-	}
-	for i := 1; i <= c.GoMinorVersion; i++ {
-		tags = append(tags, fmt.Sprintf("go1.%d", i))
-	}
-	tags = append(tags, c.Options.Tags...)
-	return tags
-}
-
-// GC returns the garbage collection strategy in use on this platform. Valid
-// values are "none", "leaking", "conservative" and "precise".
-func (c *Config) GC() string {
-	if c.Options.GC != "" {
-		return c.Options.GC
-	}
-	if c.Target.GC != "" {
-		return c.Target.GC
-	}
-	return "conservative"
-}
-
-// NeedsStackObjects returns true if the compiler should insert stack objects
-// that can be traced by the garbage collector.
-func (c *Config) NeedsStackObjects() bool {
-	switch c.GC() {
-	case "conservative", "custom", "precise", "boehm":
-		return slices.Contains(c.BuildTags(), "tinygo.wasm")
-	default:
-		return false
-	}
-}
-
-// Scheduler returns the scheduler implementation. Valid values are "none",
-// "asyncify" and "tasks".
-func (c *Config) Scheduler() string {
-	if c.Options.Scheduler != "" {
-		return c.Options.Scheduler
-	}
-	if c.Target.Scheduler != "" {
-		return c.Target.Scheduler
-	}
-	// Fall back to none.
-	return "none"
-}
-
-// Serial returns the serial implementation for this build configuration: uart,
-// usb (meaning USB-CDC), or none.
-func (c *Config) Serial() string {
-	if c.Options.Serial != "" {
-		return c.Options.Serial
-	}
-	if c.Target.Serial != "" {
-		return c.Target.Serial
-	}
-	return "none"
-}
-
-// OptLevels returns the optimization level (0-2), size level (0-2), and inliner
-// threshold as used in the LLVM optimization pipeline.
-func (c *Config) OptLevel() (level string, speedLevel, sizeLevel int) {
-	switch c.Options.Opt {
-	case "none", "0":
-		return "O0", 0, 0
-	case "1":
-		return "O1", 1, 0
-	case "2":
-		return "O2", 2, 0
-	case "s":
-		return "Os", 2, 1
-	case "z":
-		return "Oz", 2, 2 // default
-	default:
-		// This is not shown to the user: valid choices are already checked as
-		// part of Options.Verify(). It is here as a sanity check.
-		panic("unknown optimization level: -opt=" + c.Options.Opt)
-	}
-}
-
-// PanicStrategy returns the panic strategy selected for this target. Valid
-// values are "print" (print the panic value, then exit) or "trap" (issue a trap
-// instruction).
-func (c *Config) PanicStrategy() string {
-	return c.Options.PanicStrategy
-}
-
-// AutomaticStackSize returns whether goroutine stack sizes should be determined
-// automatically at compile time, if possible. If it is false, no attempt is
-// made.
-func (c *Config) AutomaticStackSize() bool {
-	if c.Target.AutoStackSize != nil && c.Scheduler() == "tasks" {
-		return *c.Target.AutoStackSize
-	}
-	return false
-}
-
-// StackSize returns the default stack size to be used for goroutines, if the
-// stack size could not be determined automatically at compile time.
-func (c *Config) StackSize() uint64 {
-	if c.Options.StackSize != 0 {
-		return c.Options.StackSize
-	}
-	return c.Target.DefaultStackSize
-}
-
-// MaxStackAlloc returns the size of the maximum allocation to put on the stack vs heap.
-func (c *Config) MaxStackAlloc() uint64 {
-	if c.StackSize() >= 16*1024 {
-		return 1024
-	}
-
-	return 256
-}
-
-// RP2040BootPatch returns whether the RP2040 boot patch should be applied that
-// calculates and patches in the checksum for the 2nd stage bootloader.
-func (c *Config) RP2040BootPatch() bool {
-	if c.Target.RP2040BootPatch != nil {
-		return *c.Target.RP2040BootPatch
-	}
-	return false
-}
-
-// Return a canonicalized architecture name, so we don't have to deal with arm*
-// vs thumb* vs arm64.
-func CanonicalArchName(triple string) string {
-	arch, _, _ := strings.Cut(triple, "-")
-	if arch == "arm64" {
-		return "aarch64"
-	}
-	if strings.HasPrefix(arch, "arm") || strings.HasPrefix(arch, "thumb") {
-		return "arm"
-	}
-	if arch == "mipsel" {
-		return "mips"
-	}
-	return arch
-}
-
-// MuslArchitecture returns the architecture name as used in musl libc. It is
-// usually the same as the first part of the LLVM triple, but not always.
-func MuslArchitecture(triple string) string {
-	return CanonicalArchName(triple)
-}
-
-// Returns true if the libc needs to include malloc, for the libcs where this
-// matters.
-func (c *Config) LibcNeedsMalloc() bool {
-	if c.GC() == "boehm" && c.Target.Libc == "wasi-libc" {
-		return true
-	}
-	return false
-}
-
-// LibraryPath returns the path to the library build directory. The path will be
-// a library path in the cache directory (which might not yet be built).
-func (c *Config) LibraryPath(name string) string {
-	archname := c.Triple()
-	if c.CPU() != "" {
-		archname += "-" + c.CPU()
-	}
-	if c.ABI() != "" {
-		archname += "-" + c.ABI()
-	}
-	if c.Target.SoftFloat {
-		archname += "-softfloat"
-	}
-	if name == "bdwgc" {
-		// Boehm GC is compiled against a particular libc.
-		archname += "-" + c.Target.Libc
-	}
-
-	// Append a version string, if this library has a version.
-	if v, ok := libVersions[name]; ok {
-		archname += "-v" + strconv.Itoa(v)
-	}
-
-	options := ""
-	if c.LibcNeedsMalloc() {
-		options += "+malloc"
-	}
-
-	// No precompiled library found. Determine the path name that will be used
-	// in the build cache.
-	return filepath.Join(goenv.Get("GOCACHE"), name+options+"-"+archname)
-}
-
-// DefaultBinaryExtension returns the default extension for binaries, such as
-// .exe, .wasm, or no extension (depending on the target).
-func (c *Config) DefaultBinaryExtension() string {
-	parts := strings.Split(c.Triple(), "-")
-	if parts[0] == "wasm32" {
-		// WebAssembly files always have the .wasm file extension.
-		return ".wasm"
-	}
-	if len(parts) >= 3 && parts[2] == "windows" {
-		// Windows uses .exe.
-		return ".exe"
-	}
-	if len(parts) >= 3 && parts[2] == "unknown" {
-		// There appears to be a convention to use the .elf file extension for
-		// ELF files intended for microcontrollers. I'm not aware of the origin
-		// of this, it's just something that is used by many projects.
-		// I think it's a good tradition, so let's keep it.
-		return ".elf"
-	}
-	// Linux, MacOS, etc, don't use a file extension. Use it as a fallback.
-	return ""
-}
-
-// CFlags returns the flags to pass to the C compiler. This is necessary for CGo
-// preprocessing.
-func (c *Config) CFlags(libclang bool) []string {
-	var cflags []string
-	for _, flag := range c.Target.CFlags {
-		cflags = append(cflags, strings.ReplaceAll(flag, "{root}", goenv.Get("TINYGOROOT")))
-	}
-	resourceDir := goenv.ClangResourceDir(libclang)
-	if resourceDir != "" {
-		// The resource directory contains the built-in clang headers like
-		// stdbool.h, stdint.h, float.h, etc.
-		// It is left empty if we're using an external compiler (that already
-		// knows these headers).
-		cflags = append(cflags,
-			"-resource-dir="+resourceDir,
-		)
-	}
-	cflags = append(cflags, c.LibcCFlags()...)
-	// Always emit debug information. It is optionally stripped at link time.
-	cflags = append(cflags, "-gdwarf-4")
-	// Use the same optimization level as TinyGo.
-	cflags = append(cflags, "-O"+c.Options.Opt)
-	// Set the LLVM target triple.
-	cflags = append(cflags, "--target="+ClangTriple(c.Triple()))
-	// Set the -mcpu (or similar) flag.
-	if c.Target.CPU != "" {
-		if c.GOARCH() == "amd64" || c.GOARCH() == "386" {
-			// x86 prefers the -march flag (-mcpu is deprecated there).
-			cflags = append(cflags, "-march="+c.Target.CPU)
-		} else if strings.HasPrefix(c.Triple(), "avr") {
-			// AVR MCUs use -mmcu instead of -mcpu.
-			cflags = append(cflags, "-mmcu="+c.Target.CPU)
-		} else {
-			// The rest just uses -mcpu.
-			cflags = append(cflags, "-mcpu="+c.Target.CPU)
-		}
-	}
-	// Set the -mabi flag, if needed.
-	if c.ABI() != "" {
-		cflags = append(cflags, "-mabi="+c.ABI())
-	}
-	return cflags
-}
-
-// LibcCFlags returns the C compiler flags for the configured libc.
-// It only uses flags that are part of the libc path (triple, cpu, abi, libc
-// name) so it can safely be used to compile another C library.
-func (c *Config) LibcCFlags() []string {
-	switch c.Target.Libc {
-	case "darwin-libSystem":
-		root := goenv.Get("TINYGOROOT")
-		return []string{
-			"-nostdlibinc",
-			"-isystem", filepath.Join(root, "lib/macos-minimal-sdk/src/usr/include"),
-		}
-	case "picolibc":
-		root := goenv.Get("TINYGOROOT")
-		picolibcDir := filepath.Join(root, "lib", "picolibc", "newlib", "libc")
-		path := c.LibraryPath("picolibc")
-		return []string{
-			"-nostdlibinc",
-			"-isystem", filepath.Join(path, "include"),
-			"-isystem", filepath.Join(picolibcDir, "include"),
-			"-isystem", filepath.Join(picolibcDir, "tinystdio"),
-			"-D__PICOLIBC_ERRNO_FUNCTION=__errno_location",
-		}
-	case "musl":
-		root := goenv.Get("TINYGOROOT")
-		path := c.LibraryPath("musl")
-		arch := MuslArchitecture(c.Triple())
-		return []string{
-			"-nostdlibinc",
-			"-isystem", filepath.Join(path, "include"),
-			"-isystem", filepath.Join(root, "lib", "musl", "arch", arch),
-			"-isystem", filepath.Join(root, "lib", "musl", "arch", "generic"),
-			"-isystem", filepath.Join(root, "lib", "musl", "include"),
-		}
-	case "wasi-libc":
-		path := c.LibraryPath("wasi-libc")
-		return []string{
-			"-nostdlibinc",
-			"-isystem", filepath.Join(path, "include"),
-		}
-	case "wasmbuiltins":
-		// nothing to add (library is purely for builtins)
-		return nil
-	case "mingw-w64":
-		root := goenv.Get("TINYGOROOT")
-		path := c.LibraryPath("mingw-w64")
-		cflags := []string{
-			"-nostdlibinc",
-			"-isystem", filepath.Join(path, "include"),
-			"-isystem", filepath.Join(root, "lib", "mingw-w64", "mingw-w64-headers", "crt"),
-			"-isystem", filepath.Join(root, "lib", "mingw-w64", "mingw-w64-headers", "include"),
-			"-isystem", filepath.Join(root, "lib", "mingw-w64", "mingw-w64-headers", "defaults", "include"),
-		}
-		if c.GOARCH() == "386" {
-			cflags = append(cflags,
-				"-D__MSVCRT_VERSION__=0x700", // Microsoft Visual C++ .NET 2002
-				"-D_WIN32_WINNT=0x0501",      // target Windows XP
-			)
-		} else {
-			cflags = append(cflags,
-				"-D_UCRT",
-				"-D_WIN32_WINNT=0x0a00", // target Windows 10
-			)
-		}
-		return cflags
-	case "":
-		// No libc specified, nothing to add.
-		return nil
-	default:
-		// Incorrect configuration. This could be handled in a better way, but
-		// usually this will be found by developers (not by TinyGo users).
-		panic("unknown libc: " + c.Target.Libc)
-	}
-}
-
-// LDFlags returns the flags to pass to the linker. A few more flags are needed
-// (like the one for the compiler runtime), but this represents the majority of
-// the flags.
-func (c *Config) LDFlags() []string {
-	root := goenv.Get("TINYGOROOT")
-	// Merge and adjust LDFlags.
-	var ldflags []string
-	for _, flag := range c.Target.LDFlags {
-		ldflags = append(ldflags, strings.ReplaceAll(flag, "{root}", root))
-	}
-	ldflags = append(ldflags, "-L", root)
-	if c.Target.LinkerScript != "" {
-		ldflags = append(ldflags, "-T", c.Target.LinkerScript)
-	}
-	ldflags = append(ldflags, c.Options.ExtLDFlags...)
-
-	return ldflags
-}
-
-// LinkerFlavor returns how the configured linker should be driven.
-// Usually this is derived from GOOS, but targets may override it explicitly.
-func (c *Config) LinkerFlavor() string {
-	if c.Target.LinkerFlavor != "" {
-		return c.Target.LinkerFlavor
-	}
-	switch c.GOOS() {
-	case "windows":
-		return "coff"
-	case "darwin":
-		return "darwin"
-	default:
-		return "gnu"
-	}
-}
-
-// ExtraFiles returns the list of extra files to be built and linked with the
-// executable. This can include extra C and assembly files.
-func (c *Config) ExtraFiles() []string {
-	return c.Target.ExtraFiles
-}
-
-// DumpSSA returns whether to dump Go SSA while compiling (-dumpssa flag). Only
-// enable this for debugging.
-func (c *Config) DumpSSA() bool {
-	return c.Options.DumpSSA
-}
-
-// VerifyIR returns whether to run extra checks on the IR. This is normally
-// disabled but enabled during testing.
-func (c *Config) VerifyIR() bool {
-	return c.Options.VerifyIR
-}
-
-// Debug returns whether debug (DWARF) information should be retained by the
-// linker. By default, debug information is retained, but it can be removed
-// with the -no-debug flag.
-func (c *Config) Debug() bool {
-	return c.Options.Debug
-}
-
-// BinaryFormat returns an appropriate binary format, based on the file
-// extension and the configured binary format in the target JSON file.
-func (c *Config) BinaryFormat(ext string) string {
-	switch ext {
-	case ".bin", ".gba", ".nro":
-		// The simplest format possible: dump everything in a raw binary file.
-		if c.Target.BinaryFormat != "" {
-			return c.Target.BinaryFormat
-		}
-		return "bin"
-	case ".img":
-		// Image file. Only defined for the ESP32 at the moment, where it is a
-		// full (runnable) image that can be used in the Espressif QEMU fork.
-		if c.Target.BinaryFormat != "" {
-			return c.Target.BinaryFormat + "-img"
-		}
-		return "bin"
-	case ".hex":
-		// Similar to bin, but includes the start address and is thus usually a
-		// better format.
-		return "hex"
-	case ".uf2":
-		// Special purpose firmware format, mainly used on Adafruit boards.
-		// More information:
-		// https://github.com/Microsoft/uf2
-		return "uf2"
-	case ".zip":
-		if c.Target.BinaryFormat != "" {
-			return c.Target.BinaryFormat
-		}
-		return "zip"
-	default:
-		// Use the ELF format for unrecognized file formats.
-		return "elf"
-	}
-}
-
-// Programmer returns the flash method and OpenOCD interface name given a
-// particular configuration. It may either be all configured in the target JSON
-// file or be modified using the -programmer command-line option.
-func (c *Config) Programmer() (method, openocdInterface string) {
-	switch c.Options.Programmer {
-	case "":
-		// No configuration supplied.
-		return c.Target.FlashMethod, c.Target.OpenOCDInterface
-	case "openocd", "msd", "command", "adb":
-		// The -programmer flag only specifies the flash method.
-		return c.Options.Programmer, c.Target.OpenOCDInterface
-	case "bmp", "probe-rs":
-		// The -programmer flag only specifies the flash method.
-		return c.Options.Programmer, ""
-	default:
-		// The -programmer flag specifies something else, assume it specifies
-		// the OpenOCD interface name.
-		return "openocd", c.Options.Programmer
-	}
-}
-
-// OpenOCDConfiguration returns a list of command line arguments to OpenOCD.
-// This list of command-line arguments is based on the various OpenOCD-related
-// flags in the target specification.
-func (c *Config) OpenOCDConfiguration() (args []string, err error) {
-	_, openocdInterface := c.Programmer()
-	if openocdInterface == "" {
-		return nil, errors.New("OpenOCD programmer not set")
-	}
-	if !regexp.MustCompile(`^[\p{L}0-9_-]+$`).MatchString(openocdInterface) {
-		return nil, fmt.Errorf("OpenOCD programmer has an invalid name: %#v", openocdInterface)
-	}
-	if c.Target.OpenOCDTarget == "" {
-		return nil, errors.New("OpenOCD chip not set")
-	}
-	if !regexp.MustCompile(`^[\p{L}0-9_-]+$`).MatchString(c.Target.OpenOCDTarget) {
-		return nil, fmt.Errorf("OpenOCD target has an invalid name: %#v", c.Target.OpenOCDTarget)
-	}
-	if c.Target.OpenOCDTransport != "" && c.Target.OpenOCDTransport != "swd" {
-		return nil, fmt.Errorf("unknown OpenOCD transport: %#v", c.Target.OpenOCDTransport)
-	}
-	args = []string{"-f", "interface/" + openocdInterface + ".cfg"}
-	if c.Target.OpenOCDTransport != "" {
-		transport := c.Target.OpenOCDTransport
-		if transport == "swd" {
-			switch openocdInterface {
-			case "stlink-dap":
-				transport = "dapdirect_swd"
-			}
-		}
-		args = append(args, "-c", "transport select "+transport)
-	}
-	args = append(args, "-f", "target/"+c.Target.OpenOCDTarget+".cfg")
-	for _, cmd := range c.Target.OpenOCDCommands {
-		args = append(args, "-c", cmd)
-	}
-	return args, nil
-}
-
-// CodeModel returns the code model used on this platform.
-func (c *Config) CodeModel() string {
-	if c.Target.CodeModel != "" {
-		return c.Target.CodeModel
-	}
-
-	return "default"
-}
-
-// RelocationModel returns the relocation model in use on this platform. Valid
-// values are "static", "pic", "dynamicnopic".
-func (c *Config) RelocationModel() string {
-	if c.Target.RelocationModel != "" {
-		return c.Target.RelocationModel
-	}
-
-	return "static"
-}
-
-// EmulatorName is a shorthand to get the command for this emulator, something
-// like qemu-system-arm or simavr.
-func (c *Config) EmulatorName() string {
-	parts := strings.SplitN(c.Target.Emulator, " ", 2)
-	if len(parts) > 1 {
-		return parts[0]
-	}
-	return ""
-}
-
-// EmulatorFormat returns the binary format for the emulator and the associated
-// file extension. An empty string means to pass directly whatever the linker
-// produces directly without conversion (usually ELF format).
-func (c *Config) EmulatorFormat() (format, fileExt string) {
-	switch {
-	case strings.Contains(c.Target.Emulator, "{img}"):
-		return "img", ".img"
-	default:
-		return "", ""
-	}
-}
-
-// Emulator returns a ready-to-run command to run the given binary in an
-// emulator. Give it the format (returned by EmulatorFormat()) and the path to
-// the compiled binary.
-func (c *Config) Emulator(format, binary string) ([]string, error) {
-	parts, err := shlex.Split(c.Target.Emulator)
-	if err != nil {
-		return nil, fmt.Errorf("could not parse emulator command: %w", err)
-	}
-	var emulator []string
-	for _, s := range parts {
-		s = strings.ReplaceAll(s, "{root}", goenv.Get("TINYGOROOT"))
-		// Allow replacement of what's usually /tmp except notably Windows.
-		s = strings.ReplaceAll(s, "{tmpDir}", os.TempDir())
-		s = strings.ReplaceAll(s, "{"+format+"}", binary)
-		emulator = append(emulator, s)
-	}
-	return emulator, nil
-}
-
-type TestConfig struct {
-	CompileTestBinary bool
-	CompileOnly       bool
-	Verbose           bool
-	Short             bool
-	RunRegexp         string
-	SkipRegexp        string
-	Count             *int
-	BenchRegexp       string
-	BenchTime         string
-	BenchMem          bool
-	Shuffle           string
-}

compileopts/features_default.go

@@ -1,9 +0,0 @@
-//go:build !llvm22 && !llvm14 && !llvm15 && !llvm16 && !llvm17 && !llvm18 && !llvm19
-
-package compileopts
-
-// patchFeatures applies LLVM-version-specific feature name mappings.
-// For LLVM 20/21, features in the target JSON files are already correct.
-func patchFeatures(features string) string {
-	return features
-}