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| author | Fangrui Song <i@maskray.me> | 2024-02-14 10:50:24 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-02-14 10:50:24 -0800 |
| commit | 2d5fb27db71b57f299793160181ef28fea5573e7 (patch) | |
| tree | ee4e5c082503ed3dfb8a55d543a10b50763aefbd /llvm/lib/CodeGen/BasicBlockSections.cpp | |
| parent | 6d4ffbdfa8ff90e4ee6081ad8dbb8ec24e982a02 (diff) | |
| download | llvm-2d5fb27db71b57f299793160181ef28fea5573e7.zip llvm-2d5fb27db71b57f299793160181ef28fea5573e7.tar.gz llvm-2d5fb27db71b57f299793160181ef28fea5573e7.tar.bz2 | |
[ubsan] Support static linking with standalone runtime (#80943)
The standalone runtime (not
-fsanitize-minimal-runtime/-fsanitize-trap=undefined) installs some
signal handlers using `real_sigaction`. With static linking
(-static/-static-pie), the called `REAL(sigaction)` is null, leading to
an immediate segfault, which is confusing (#51538).
Fix #51538 by bailing out.
`// REQUIRES: librt_has_multf3` from https://reviews.llvm.org/D109709
actually disabled the test because `librt_has_*` features are only for
`compiler-rt/test/builtins`. The test does not reproduce for me:
libclang_rt.builtins.a or libgcc. Revert the REQUIRES.
Diffstat (limited to 'llvm/lib/CodeGen/BasicBlockSections.cpp')
0 files changed, 0 insertions, 0 deletions