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tsan: fix mmap_lots test

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If tsan runtime will try to allocate something during exit handling,
the allocation will fail because there is no VA whatsoever.
It's observed to fail with the following error in some cases:
failed to allocate 0x1000 (4096) bytes of DTLS_NextBlock.
So terminate the process immediately.

Reviewed-in: https://reviews.llvm.org/D96874
This commit is contained in:
Dmitry Vyukov 2021-02-17 17:43:16 +01:00
parent c73cbf218a
commit fb19400d4e
1 changed files with 6 additions and 0 deletions
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6
compiler-rt/test/tsan/mmap_lots.cpp
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@ -24,6 +24,12 @@ int main() {
fprintf(stderr, "allocated %zu with size %zu\n", allocated, mmap_size);
}
fprintf(stderr, "DONE\n");
// If tsan runtime will try to allocate something during exit handling,
// the allocation will fail because there is no VA whatsoever.
// It's observed to fail with the following error in some cases:
// failed to allocate 0x1000 (4096) bytes of DTLS_NextBlock.
// So terminate the process immediately.
_exit(0);
}
// CHECK: DONE