[compiler-rt] r286658 - [tsan] Expose __tsan_ignore_thread_begin and __tsan_ignore_thread_end in TSan interface

[Anna Zaks via llvm-commits]

Author: zaks
Date: Fri Nov 11 16:43:12 2016
New Revision: 286658

URL: http://llvm.org/viewvc/llvm-project?rev=286658&view=rev
Log:
[tsan] Expose __tsan_ignore_thread_begin and __tsan_ignore_thread_end in TSan interface

This patch is needed to implement the function attribute that disable TSan checking at run time.

Differential Revision: https://reviews.llvm.org/D25859

Modified:
    compiler-rt/trunk/lib/tsan/rtl/tsan_interface.h
    compiler-rt/trunk/lib/tsan/rtl/tsan_interface_inl.h

Modified: compiler-rt/trunk/lib/tsan/rtl/tsan_interface.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_interface.h?rev=286658&r1=286657&r2=286658&view=diff
==============================================================================
--- compiler-rt/trunk/lib/tsan/rtl/tsan_interface.h (original)
+++ compiler-rt/trunk/lib/tsan/rtl/tsan_interface.h Fri Nov 11 16:43:12 2016
@@ -73,6 +73,9 @@ void __tsan_vptr_update(void **vptr_p, v
 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_func_entry(void *call_pc);
 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_func_exit();
 
+SANITIZER_INTERFACE_ATTRIBUTE void __tsan_ignore_thread_begin();
+SANITIZER_INTERFACE_ATTRIBUTE void __tsan_ignore_thread_end();
+
 SANITIZER_INTERFACE_ATTRIBUTE
 void __tsan_read_range(void *addr, unsigned long size);  // NOLINT
 SANITIZER_INTERFACE_ATTRIBUTE

Modified: compiler-rt/trunk/lib/tsan/rtl/tsan_interface_inl.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_interface_inl.h?rev=286658&r1=286657&r2=286658&view=diff
==============================================================================
--- compiler-rt/trunk/lib/tsan/rtl/tsan_interface_inl.h (original)
+++ compiler-rt/trunk/lib/tsan/rtl/tsan_interface_inl.h Fri Nov 11 16:43:12 2016
@@ -108,6 +108,14 @@ void __tsan_func_exit() {
   FuncExit(cur_thread());
 }
 
+void __tsan_ignore_thread_begin() {
+  ThreadIgnoreBegin(cur_thread(), CALLERPC);
+}
+
+void __tsan_ignore_thread_end() {
+  ThreadIgnoreEnd(cur_thread(), CALLERPC);
+}
+
 void __tsan_read_range(void *addr, uptr size) {
   MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, false);
 }