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fix: C++ exceptions across shared libraries on Linux (#3500)

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Server interruptions in C++ started to fail after #3421
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Sebastian Ullrich 2024-02-26 11:35:11 +01:00 • committed by GitHub
parent eb48e6908b
commit 992000a672
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4
script/prepare-llvm-linux.sh
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@ -25,6 +25,8 @@ cp -L llvm/bin/llvm-ar stage1/bin/
# dependencies of the above
$CP llvm/lib/lib{clang-cpp,LLVM}*.so* stage1/lib/
$CP $ZLIB/lib/libz.so* stage1/lib/
# general clang++ dependency, breaks cross-library C++ exceptions if linked statically
$CP $GCC_LIB/lib/libgcc_s.so* stage1/lib/
# bundle libatomic (referenced by LLVM >= 15, and required by the lean executable to run)
$CP $GCC_LIB/lib/libatomic.so* stage1/lib/
@ -60,7 +62,7 @@ fi
# use `-nostdinc` to make sure headers are not visible by default (in particular, not to `#include_next` in the clang headers),
# but do not change sysroot so users can still link against system libs
echo -n " -DLEANC_INTERNAL_FLAGS='-nostdinc -isystem ROOT/include/clang' -DLEANC_CC=ROOT/bin/clang"
echo -n " -DLEANC_INTERNAL_LINKER_FLAGS='-L ROOT/lib -L ROOT/lib/glibc ROOT/lib/glibc/libc_nonshared.a -Wl,--as-needed -static-libgcc -Wl,-Bstatic -lgmp -lunwind -Wl,-Bdynamic -Wl,--no-as-needed -fuse-ld=lld'"
echo -n " -DLEANC_INTERNAL_LINKER_FLAGS='-L ROOT/lib -L ROOT/lib/glibc ROOT/lib/glibc/libc_nonshared.a -Wl,--as-needed -Wl,-Bstatic -lgmp -lunwind -Wl,-Bdynamic -Wl,--no-as-needed -fuse-ld=lld'"
# when not using the above flags, link GMP dynamically/as usual
echo -n " -DLEAN_EXTRA_LINKER_FLAGS='-Wl,--as-needed -lgmp -Wl,--no-as-needed'"
# do not set `LEAN_CC` for tests