diff options
| author | _ov4 <ov4@ov4.org> | 2026-10-16 09:04:34 +0000 |
|---|---|---|
| committer | _ov4 <ov4@ov4.org> | 2026-10-16 09:04:34 +0000 |
| commit | b439592cf8113f34240095dcd6d8b6196c7d87c7 (patch) | |
| tree | 7cf868c8d295d38a923efea48ff4dff8566295ee /tools | |
| parent | e7cd4478407fb0261ba8cec01381eb154d884d1f (diff) | |
fix(build): build matching static LLD for macOS
Build LLD from the installed LLVM version's official source release and
install static archives into the local build prefix. Include the Mach-O
unwind headers, preserve static library checks and document the setup.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/build-static-lld.sh | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/tools/build-static-lld.sh b/tools/build-static-lld.sh new file mode 100644 index 0000000..407e814 --- /dev/null +++ b/tools/build-static-lld.sh @@ -0,0 +1,51 @@ +#!/bin/sh +# Build LLD against an installed LLVM SDK; install it in cpsc's build prefix. +set -eu + +if [ "$#" -lt 2 ] || [ "$#" -gt 3 ]; then + echo "Usage: sh tools/build-static-lld.sh LLVM_PREFIX BUILD_DIRECTORY [JOBS]" >&2 + exit 1 +fi + +llvm_prefix=$(cd "$1" && pwd) +mkdir -p "$2" +build_root=$(cd "$2" && pwd) +jobs=${3:-3} +llvm_version=$("$llvm_prefix/bin/llvm-config" --version) +case "$llvm_version" in + 23.*) ;; + *) echo "Static LLD requires LLVM 23; found $llvm_version" >&2; exit 1 ;; +esac + +work="$build_root/static-lld-$llvm_version" +archive="$work/llvm-project-$llvm_version.src.tar.xz" +mkdir -p "$work/src/llvm" +if [ ! -f "$archive" ]; then + curl -fL --retry 3 \ + "https://github.com/llvm/llvm-project/releases/download/llvmorg-$llvm_version/llvm-project-$llvm_version.src.tar.xz" \ + -o "$archive.part" + mv "$archive.part" "$archive" +fi +if [ ! -f "$work/src/.extracted" ]; then + tar -xJf "$archive" -C "$work/src" --strip-components=1 \ + "llvm-project-$llvm_version.src/lld" "llvm-project-$llvm_version.src/cmake" \ + "llvm-project-$llvm_version.src/libunwind/include" + touch "$work/src/.extracted" +fi + +set -- +if [ "$(uname -s)" = Darwin ]; then + set -- "-DCMAKE_OSX_ARCHITECTURES=$(uname -m)" \ + "-DCMAKE_OSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET:-15.0}" +fi +cmake -S "$work/src/lld" -B "$work/build" \ + -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF \ + -DLLVM_INCLUDE_TESTS=OFF -DLLVM_LINK_LLVM_DYLIB=ON \ + "-DLLVM_DIR=$llvm_prefix/lib/cmake/llvm" \ + "-DLLVM_MAIN_SRC_DIR=$work/src/llvm" \ + "-DCMAKE_C_COMPILER=$llvm_prefix/bin/clang" \ + "-DCMAKE_CXX_COMPILER=$llvm_prefix/bin/clang++" \ + "-DCMAKE_INSTALL_RPATH=$llvm_prefix/lib" \ + "-DCMAKE_INSTALL_PREFIX=$build_root" -DCMAKE_INSTALL_LIBDIR=lib "$@" +cmake --build "$work/build" --parallel "$jobs" +cmake --install "$work/build" |