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| author | Kuba Brecka <kuba.brecka@gmail.com> | 2016-04-21 14:38:41 +0000 |
|---|---|---|
| committer | Kuba Brecka <kuba.brecka@gmail.com> | 2016-04-21 14:38:41 +0000 |
| commit | fc1463ac75cfc8712f0ed30148758871938aafb1 (patch) | |
| tree | e166d7d3117000f5846abe234dc69499bead2ec8 /lib | |
| parent | 075c251640c88f5431dd291e86f1ca2b9c266ce4 (diff) | |
[sanitizer] Use pthread_threadid_np as thread ID on OS X
Let's use pthread_threadid_np which returns a more reasonable ID than pthread_self (which is actually a stack pointer). The numbers from pthread_threadid_np are already used in other tools, e.g. in LLDB, and often appear in logs, so it's much more useful than pthread_self.
Differential Revision: http://reviews.llvm.org/D18951
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@266991 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_mac.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/sanitizer_common/sanitizer_mac.cc b/lib/sanitizer_common/sanitizer_mac.cc index c2e8b1ec3..5fbb14729 100644 --- a/lib/sanitizer_common/sanitizer_mac.cc +++ b/lib/sanitizer_common/sanitizer_mac.cc @@ -230,7 +230,10 @@ bool FileExists(const char *filename) { } uptr GetTid() { - return reinterpret_cast<uptr>(pthread_self()); + // FIXME: This can potentially get truncated on 32-bit, where uptr is 4 bytes. + uint64_t tid; + pthread_threadid_np(nullptr, &tid); + return tid; } void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top, |