tree 2112644474c18209a789b4c2539e8e6d4bbb0795
parent 0993088f9aa21098fe77b717707e4b9c4edf86c7
author Krzysztof Jędruczyk <kjedruczyk@bloomberg.net> 1791409433 +0100
committer Copybara-Service <copybara-worker@google.com> 1791409755 -0700

[sanitizer_common] Add tests for the C11 <threads.h> functions (#229066)

[sanitizer_common] Add tests for the C11 <threads.h> functions

Pre-commits tests for #199585, as suggested there. Tests that reproduce
the problem marked `UNSUPPORTED:` for now.

With the `UNSUPPORTED:` lines removed, these fail on glibc 2.28 and
2.34:

| Test | Fails with |
|---|---|
| `c11_thrd.c` | tsan, msan, asan, lsan, hwasan |
| `c11_mtx.c` | tsan |
| `c11_cnd.c` | tsan |
| `c11_call_once.c` | tsan |
| `c11_tss.c` | msan |

Two findings beyond the original issue: ASan, LSan and HWASan report a
false leak for memory held on the stack of a running `thrd_create`'d
thread, and MSan reports the key from `tss_create` as uninitialized, so
`tss_*` is affected too.

Tested with clang 19 on glibc 2.28 and clang 17 on glibc 2.34, for asan,
lsan, msan, tsan, ubsan and hwasan (x86-64 aliasing mode).

assisted-by: claude
NOKEYCHECK=True
GitOrigin-RevId: d85b869314501fd446ff50b8a937eaa017d0ea62