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esp: add support for the Espressif ESP32 chip

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This is only very minimal support. More support (such as tinygo flash,
or peripheral access) should be added in later commits, to keep this one
focused.

Importantly, this commit changes the LLVM repo from llvm/llvm-project to
tinygo-org/llvm-project. This provides a little bit of versioning in
case something changes in the Espressif fork. If we want to upgrade to
LLVM 11 it's easy to switch back to llvm/llvm-project until Espressif
has updated their fork.
This commit is contained in:
Ayke van Laethem
2020-08-06 23:28:45 +02:00
committed by Ron Evans
parent da7db81087
commit 3ee47a9c1b
15 changed files with 520 additions and 39 deletions
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Makefile
+10 -3
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@@ -118,7 +118,7 @@ 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-kendryte gen-device-nxp
gen-device: gen-device-avr gen-device-esp gen-device-nrf gen-device-sam gen-device-sifive gen-device-stm32 gen-device-kendryte gen-device-nxp
gen-device-avr:
$(GO) build -o ./build/gen-device-avr ./tools/gen-device-avr/
@@ -129,6 +129,10 @@ gen-device-avr:
build/gen-device-svd: ./tools/gen-device-svd/*.go
$(GO) build -o $@ ./tools/gen-device-svd/
gen-device-esp: build/gen-device-svd
./build/gen-device-svd -source=https://github.com/posborne/cmsis-svd/tree/master/data/Espressif-Community -interrupts=software lib/cmsis-svd/data/Espressif-Community/ src/device/esp/
GO111MODULE=off $(GO) fmt ./src/device/esp
gen-device-nrf: build/gen-device-svd
./build/gen-device-svd -source=https://github.com/NordicSemiconductor/nrfx/tree/master/mdk lib/nrfx/mdk/ src/device/nrf/
GO111MODULE=off $(GO) fmt ./src/device/nrf
@@ -156,13 +160,13 @@ gen-device-stm32: build/gen-device-svd
# Get LLVM sources.
$(LLVM_PROJECTDIR)/README.md:
git clone -b release/10.x --depth=1 https://github.com/llvm/llvm-project $(LLVM_PROJECTDIR)
git clone -b xtensa_release_10.0.1 --depth=1 https://github.com/tinygo-org/llvm-project $(LLVM_PROJECTDIR)
llvm-source: $(LLVM_PROJECTDIR)/README.md
# Configure LLVM.
TINYGO_SOURCE_DIR=$(shell pwd)
$(LLVM_BUILDDIR)/build.ninja: llvm-source
mkdir -p $(LLVM_BUILDDIR); cd $(LLVM_BUILDDIR); cmake -G Ninja $(TINYGO_SOURCE_DIR)/$(LLVM_PROJECTDIR)/llvm "-DLLVM_TARGETS_TO_BUILD=X86;ARM;AArch64;RISCV;WebAssembly" "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=AVR" -DCMAKE_BUILD_TYPE=Release -DLIBCLANG_BUILD_STATIC=ON -DLLVM_ENABLE_TERMINFO=OFF -DLLVM_ENABLE_ZLIB=OFF -DLLVM_ENABLE_LIBEDIT=OFF -DLLVM_ENABLE_Z3_SOLVER=OFF -DLLVM_ENABLE_OCAMLDOC=OFF -DLLVM_ENABLE_PROJECTS="clang;lld" -DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF $(LLVM_OPTION)
mkdir -p $(LLVM_BUILDDIR); cd $(LLVM_BUILDDIR); cmake -G Ninja $(TINYGO_SOURCE_DIR)/$(LLVM_PROJECTDIR)/llvm "-DLLVM_TARGETS_TO_BUILD=X86;ARM;AArch64;RISCV;WebAssembly" "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=AVR;Xtensa" -DCMAKE_BUILD_TYPE=Release -DLIBCLANG_BUILD_STATIC=ON -DLLVM_ENABLE_TERMINFO=OFF -DLLVM_ENABLE_ZLIB=OFF -DLLVM_ENABLE_LIBEDIT=OFF -DLLVM_ENABLE_Z3_SOLVER=OFF -DLLVM_ENABLE_OCAMLDOC=OFF -DLLVM_ENABLE_PROJECTS="clang;lld" -DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF $(LLVM_OPTION)
# Build LLVM.
$(LLVM_BUILDDIR): $(LLVM_BUILDDIR)/build.ninja
@@ -341,6 +345,9 @@ ifneq ($(AVR), 0)
@$(MD5SUM) test.hex
$(TINYGO) build -size short -o test.hex -target=digispark -gc=leaking examples/blinky1
@$(MD5SUM) test.hex
endif
ifneq ($(XTENSA), 0)
$(TINYGO) build -size short -o test.elf -target=esp32 examples/serial
endif
$(TINYGO) build -size short -o test.hex -target=hifive1b examples/blinky1
@$(MD5SUM) test.hex