forked from mirrors/gecko-dev
a6287b9ca6
Before clang 16, the libunwind install only contained the libunwind.a library. Since clang 16, however, it also contains header files, including a unwind.h file that conflicts with the unwind.h file that is also shipped alongside compiler-rt. When building clang itself with compiler-rt and libunwind (i.e. not building everything separately like we do), however, that's not a problem because it puts libunwind in a different directory than compiler-rt. So we change the clang repacking to follow a similar convention. But because clang doesn't look for libraries under clang/lib/$arch, but looks under clang/lib/$target instead, we also need to enable per-target directories for libunwind. But because clang also looks for libraries under clang/lib/$exact_target rather than clang/lib/$relaxed_target (in Android's case, exact_target might be aarch64-unknown-linux-android21, relaxed_target aarch64-unknown-linux-android), we patch clang to apply the same kind of fallbacks it does for runtimes for clang/lib. Differential Revision: https://phabricator.services.mozilla.com/D173363
52 lines
1.5 KiB
Bash
Executable file
52 lines
1.5 KiB
Bash
Executable file
#!/bin/bash
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set -x -e -v
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shopt -s nullglob
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# This script is for repacking clang for cross targets on a Linux host.
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cd $MOZ_FETCHES_DIR
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# We have a clang toolchain in $MOZ_FETCHES_DIR/clang
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# We have some compiler-rts in $MOZ_FETCHES_DIR/compiler-rt*
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# We have some libunwinds in $MOZ_FETCHES_DIR/libunwind*
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# We copy everything from the compiler-rts into clang/lib/clang/$version/
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# and everything from the libunwinds into clang/
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clang_ver_dir=$(echo clang/lib/clang/*/include)
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clang_ver_dir=${clang_ver_dir%/include}
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[ -n "$clang_ver_dir" ] && for c in compiler-rt* libunwind*; do
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case $c in
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compiler-rt*)
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clang_dir=$clang_ver_dir
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;;
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libunwind*)
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clang_dir=clang
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;;
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esac
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find $c -mindepth 1 -type d | while read d; do
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mkdir -p "$clang_dir/${d#$c/}"
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find $d -mindepth 1 -maxdepth 1 -not -type d | while read f; do
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target_file="$clang_dir/${f#$c/}"
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case $d in
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compiler-rt-*/lib/darwin)
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if [ -f "$target_file" ]; then
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# Unify overlapping files for darwin/
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$MOZ_FETCHES_DIR/cctools/bin/lipo -create "$f" "$target_file" -output "$target_file.new"
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mv "$target_file.new" "$target_file"
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continue
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fi
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;;
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esac
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if [ -f "$target_file" ] && ! diff -q "$f" "$target_file" 2>/dev/null; then
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echo "Cannot copy $f because it is already in ${target_file%/*}" >&2 && exit 1
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fi
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cp "$f" "$target_file"
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done
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done
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done
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if [ -n "$UPLOAD_DIR" ]; then
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tar caf clang.tar.zst clang
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mkdir -p $UPLOAD_DIR
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mv clang.tar.zst $UPLOAD_DIR
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fi
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