tsan: add range access functions for Go

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@167580 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/tsan/go/tsan_go.cc b/lib/tsan/go/tsan_go.cc
index 149684214..bb1ac1dd2 100644
--- a/lib/tsan/go/tsan_go.cc
+++ b/lib/tsan/go/tsan_go.cc
@@ -122,6 +122,18 @@ void __tsan_write(int goid, void *addr, void *pc) {
   MemoryAccess(thr, (uptr)pc, (uptr)addr, 0, true);
 }
 
+void __tsan_read_range(int goid, void *addr, uptr size, uptr step, void *pc) {
+  ThreadState *thr = goroutines[goid];
+  for (uptr i = 0; i < size; i += step)
+	  MemoryAccess(thr, (uptr)pc, (uptr)addr + i, 0, false);
+}
+
+void __tsan_write_range(int goid, void *addr, uptr size, uptr step, void *pc) {
+  ThreadState *thr = goroutines[goid];
+  for (uptr i = 0; i < size; i += step)
+	  MemoryAccess(thr, (uptr)pc, (uptr)addr + i, 0, true);
+}
+
 void __tsan_func_enter(int goid, void *pc) {
   ThreadState *thr = goroutines[goid];
   FuncEntry(thr, (uptr)pc);