intel/llvm
1
0
Fork 0
mirror of https://github.com/intel/llvm.git synced 2026-01-20 10:58:11 +08:00
Code Issues Packages Projects Releases Wiki Activity

[Tsan] Do not sanitize memset() and other functions during initialization

Browse Source 
Differential Revision: http://reviews.llvm.org/D8544

llvm-svn: 233378
This commit is contained in:
Viktor Kutuzov
2015-03-27 14:12:28 +00:00
parent fe25759022
commit eff2d98ecc
1 changed files with 9 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
compiler-rt/lib/tsan/rtl/tsan_interceptors.cc
View File

@@ -156,6 +156,9 @@ const int SA_SIGINFO = 4;
const int SIG_SETMASK = 2;
#endif
#define COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED \
(!cur_thread()->is_inited)
namespace std {
struct nothrow_t {};
} // namespace std
@@ -663,14 +666,17 @@ TSAN_INTERCEPTOR(uptr, strlen, const char *s) {
}
TSAN_INTERCEPTOR(void*, memset, void *dst, int v, uptr size) {
SCOPED_TSAN_INTERCEPTOR(memset, dst, v, size);
MemoryAccessRange(thr, pc, (uptr)dst, size, true);
// On FreeBSD we get here from libthr internals on thread initialization.
if (!COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) {
SCOPED_TSAN_INTERCEPTOR(memset, dst, v, size);
MemoryAccessRange(thr, pc, (uptr)dst, size, true);
}
return internal_memset(dst, v, size);
}
TSAN_INTERCEPTOR(void*, memcpy, void *dst, const void *src, uptr size) {
// On FreeBSD we get here from libthr internals on thread initialization.
if (cur_thread()->is_inited) {
if (!COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) {
SCOPED_TSAN_INTERCEPTOR(memcpy, dst, src, size);
MemoryAccessRange(thr, pc, (uptr)dst, size, true);
MemoryAccessRange(thr, pc, (uptr)src, size, false);