4d47c8abc6
Co-authored-by: Sebastian Ullrich <sebasti@nullri.ch> Co-authored-by: Gabriel Ebner <gebner@gebner.org>
55 lines
2.3 KiB
Bash
Executable file
55 lines
2.3 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -uxo pipefail
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# run from root build directory as in
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# ```
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# eval cmake ../.. $(../../script/prepare-llvm-macos.sh)
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# ```
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# use full LLVM release for compiling C++ code, but subset for compiling C code and distribution
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GMP=${GMP:-$(brew --prefix)}
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[[ -d llvm ]] || (mkdir llvm; gtar xf $1 --strip-components 1 --directory llvm)
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[[ -d llvm-host ]] || if [[ "$#" -gt 1 ]]; then
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(mkdir llvm-host; gtar xf $2 --strip-components 1 --directory llvm-host)
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else
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ln -s llvm llvm-host
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fi
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SDK=$(xcrun --show-sdk-path)
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mkdir -p stage1/{bin,lib/libc,include/clang}
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CP="gcp -d" # preserve symlinks
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# a C compiler!
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gcp -L llvm/bin/clang stage1/bin/
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# a linker!
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gcp -L llvm/bin/ld64.lld stage1/bin/
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# a static archiver!
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gcp -L llvm/bin/llvm-ar stage1/bin/
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# dependencies of the above
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$CP llvm/lib/lib{clang-cpp,LLVM}.dylib stage1/lib/
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#find stage1 -type f -exec strip --strip-unneeded '{}' \; 2> /dev/null
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# lean.h dependencies
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$CP llvm/lib/clang/*/include/{std*,__std*,limits}.h stage1/include/clang
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# runtime
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(cd llvm; $CP --parents lib/clang/*/lib/*/libclang_rt.osx.a ../stage1)
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# libSystem stub, includes libc
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cp $SDK/usr/lib/libSystem.tbd stage1/lib/libc
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# use for linking, use system libs for running
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gcp llvm/lib/lib{c++,c++abi,unwind}.dylib stage1/lib/libc
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echo -n " -DLLVM=ON -DLLVM_CONFIG=$PWD/llvm-host/bin/llvm-config" # manually point to `llvm-config` location
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echo -n " -DLEAN_STANDALONE=ON"
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# do not change C++ compiler; libc++ etc. being system libraries means there's no danger of conflicts,
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# and the custom clang++ outputs a myriad of warnings when consuming the SDK
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echo -n " -DLEAN_EXTRA_CXX_FLAGS='${EXTRA_FLAGS:-}'"
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if [[ -L llvm-host ]]; then
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echo -n " -DCMAKE_C_COMPILER=$PWD/stage1/bin/clang"
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gcp $GMP/lib/libgmp.a stage1/lib/
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echo -n " -DLEANC_INTERNAL_LINKER_FLAGS='-L ROOT/lib -L ROOT/lib/libc -fuse-ld=lld'"
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echo -n " -DLEAN_EXTRA_LINKER_FLAGS='-lgmp'"
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else
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echo -n " -DCMAKE_C_COMPILER=$PWD/llvm-host/bin/clang -DLEANC_OPTS='--sysroot $PWD/stage1 -resource-dir $PWD/stage1/lib/clang/15.0.1 ${EXTRA_FLAGS:-}'"
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echo -n " -DLEANC_INTERNAL_LINKER_FLAGS='-L ROOT/lib -L ROOT/lib/libc -fuse-ld=lld'"
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fi
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echo -n " -DLEANC_INTERNAL_FLAGS='-nostdinc -isystem ROOT/include/clang' -DLEANC_CC=ROOT/bin/clang"
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# do not set `LEAN_CC` for tests
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echo -n " -DLEAN_TEST_VARS=''"
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