Sanitiser common, using u64 type for GetTid on posix systems

Summary: Moving from ptr to u64 for GetTid posix implementation.
[FreeBSD] Moving from pthread_self to thr_self more appropriate to get thread ID.

Patch by: David CARLIER

Reviewers: krytarowski, vitalybuka

Reviewed By: vitalybuka

Subscribers: kubamracek, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D43998

llvm-svn: 326647

compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h

@@ -178,12 +178,7 @@ typedef u32 operator_new_size_type;
 # endif
 #endif
 
-#if SANITIZER_MAC
-// On Darwin, thread IDs are 64-bit even on 32-bit systems.
 typedef u64 tid_t;
-#else
-typedef uptr tid_t;
-#endif
 
 // ----------- ATTENTION -------------
 // This header should NOT include any other headers to avoid portability issues.

compiler-rt/lib/sanitizer_common/sanitizer_linux.cc

@@ -84,6 +84,7 @@ extern "C" {
 // FreeBSD 9.2 and 10.0.
 #include <sys/umtx.h>
 }
+#include <sys/thr.h>
 extern char **environ;  // provided by crt1
 #endif  // SANITIZER_FREEBSD
 
@@ -453,11 +454,13 @@ bool FileExists(const char *filename) {
 
 tid_t GetTid() {
 #if SANITIZER_FREEBSD
-  return (uptr)pthread_self();
+  long Tid;
+  thr_self(&Tid);
+  return Tid;
 #elif SANITIZER_NETBSD
   return _lwp_self();
 #elif SANITIZER_SOLARIS
-  return (uptr)thr_self();
+  return thr_self();
 #else
   return internal_syscall(SYSCALL(gettid));
 #endif