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builder: add support for cross compiling to Darwin

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This means that it will be possible to generate a Darwin binary on any
platform (Windows, Linux, and MacOS of course), including CGo. Of
course, the resulting binaries can only run on MacOS itself.

The binary links against libSystem.dylib, which is a shared library. The
macos-minimal-sdk repository contains open source header files and
generated symbol stubs so we can generate a stub libSystem.dylib without
copying any closed source code.
This commit is contained in:
Ayke van Laethem
2021-11-10 17:58:38 +01:00
committed by Ron Evans
parent 850a5fdbfb
commit cdd267fa10
12 changed files with 105 additions and 9 deletions
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Makefile
+6 -1
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@@ -73,6 +73,8 @@ ifeq ($(OS),Windows_NT)
else ifeq ($(shell uname -s),Darwin)
MD5SUM = md5
CGO_LDFLAGS += -lxar
USE_SYSTEM_BINARYEN ?= 1
else ifeq ($(shell uname -s),FreeBSD)
@@ -89,7 +91,7 @@ CLANG_LIB_NAMES = clangAnalysis clangAST clangASTMatchers clangBasic clangCodeGe
CLANG_LIBS = $(START_GROUP) $(addprefix -l,$(CLANG_LIB_NAMES)) $(END_GROUP) -lstdc++
# Libraries that should be linked in for the statically linked LLD.
LLD_LIB_NAMES = lldCOFF lldCommon lldCore lldDriver lldELF lldMachO lldMinGW lldReaderWriter lldWasm lldYAML
LLD_LIB_NAMES = lldCOFF lldCommon lldCore lldDriver lldELF lldMachO2 lldMinGW lldReaderWriter lldWasm lldYAML
LLD_LIBS = $(START_GROUP) $(addprefix -l,$(LLD_LIB_NAMES)) $(END_GROUP)
# Other libraries that are needed to link TinyGo.
@@ -566,6 +568,7 @@ endif
@$(MD5SUM) test.hex
GOOS=linux GOARCH=arm $(TINYGO) build -size short -o test.elf ./testdata/cgo
GOOS=windows GOARCH=amd64 $(TINYGO) build -size short -o test.exe ./testdata/cgo
GOOS=darwin GOARCH=amd64 $(TINYGO) build -o test ./testdata/cgo
ifneq ($(OS),Windows_NT)
# TODO: this does not yet work on Windows. Somehow, unused functions are
# not garbage collected.
@@ -581,6 +584,7 @@ build/release: tinygo gen-device wasi-libc $(if $(filter 1,$(USE_SYSTEM_BINARYEN
@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/macos-minimal-sdk
@mkdir -p build/release/tinygo/lib/mingw-w64/mingw-w64-crt/lib-common
@mkdir -p build/release/tinygo/lib/mingw-w64/mingw-w64-headers/defaults
@mkdir -p build/release/tinygo/lib/musl/arch
@@ -604,6 +608,7 @@ endif
@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/macos-minimal-sdk/* build/release/tinygo/lib/macos-minimal-sdk
@cp -rp lib/musl/arch/aarch64 build/release/tinygo/lib/musl/arch
@cp -rp lib/musl/arch/arm build/release/tinygo/lib/musl/arch
@cp -rp lib/musl/arch/generic build/release/tinygo/lib/musl/arch