[PATCH] D18951: [sanitizer] Use pthread_threadid_np as thread ID on OS X

[Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL266991: [sanitizer] Use pthread_threadid_np as thread ID on OS X (authored by kuba.brecka).

Changed prior to commit:
  http://reviews.llvm.org/D18951?vs=53204&id=54503#toc

Repository:
  rL LLVM

http://reviews.llvm.org/D18951

Files:
  compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc

Index: compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc
===================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc
@@ -230,7 +230,10 @@
 }
 
 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,


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