diff options
Diffstat (limited to 'compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc')
| -rw-r--r-- | compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc b/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc index 2d488cadd4f..d05c0e701e7 100644 --- a/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc +++ b/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc @@ -320,6 +320,20 @@ int ExtractRecvmsgFDs(void *msgp, int *fds, int nfd) { return res; } +void ImitateTlsWrite(ThreadState *thr, uptr tls_addr, uptr tls_size) { + // Check that the thr object is in tls; + const uptr thr_beg = (uptr)thr; + const uptr thr_end = (uptr)thr + sizeof(*thr); + CHECK_GE(thr_beg, tls_addr); + CHECK_LE(thr_beg, tls_addr + tls_size); + CHECK_GE(thr_end, tls_addr); + CHECK_LE(thr_end, tls_addr + tls_size); + // Since the thr object is huge, skip it. + MemoryRangeImitateWrite(thr, /*pc=*/2, tls_addr, thr_beg - tls_addr); + MemoryRangeImitateWrite(thr, /*pc=*/2, thr_end, + tls_addr + tls_size - thr_end); +} + // Note: this function runs with async signals enabled, // so it must not touch any tsan state. int call_pthread_cancel_with_cleanup(int(*fn)(void *c, void *m, |
