[sanitizer_common] Rename OnPrint to __sanitizer_on_print.

Summary:
https://reviews.llvm.org/D28596 exposed OnPrint in the global namespace,
which can cause collisions with user-defined OnPrint() functions.

Reviewers: vitalybuka, dvyukov

Reviewed By: vitalybuka, dvyukov

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67987

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@373518 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/sanitizer_common/sanitizer_printf.cpp b/lib/sanitizer_common/sanitizer_printf.cpp
index 9d1c54478..7063de257 100644
--- a/lib/sanitizer_common/sanitizer_printf.cpp
+++ b/lib/sanitizer_common/sanitizer_printf.cpp
@@ -229,15 +229,21 @@ void SetPrintfAndReportCallback(void (*callback)(const char *)) {
 // Can be overriden in frontend.
 #if SANITIZER_GO && defined(TSAN_EXTERNAL_HOOKS)
 // Implementation must be defined in frontend.
+// TODO(morehouse): Remove OnPrint after migrating Go to __sanitizer_on_print.
 extern "C" void OnPrint(const char *str);
+extern "C" void __sanitizer_on_print(const char *str);
 #else
-SANITIZER_INTERFACE_WEAK_DEF(void, OnPrint, const char *str) {
+SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_on_print, const char *str) {
   (void)str;
 }
 #endif
 
 static void CallPrintfAndReportCallback(const char *str) {
+#if SANITIZER_GO && defined(TSAN_EXTERNAL_HOOKS)
+  // TODO(morehouse): Remove OnPrint after migrating Go to __sanitizer_on_print.
   OnPrint(str);
+#endif
+  __sanitizer_on_print(str);
   if (PrintfAndReportCallback)
     PrintfAndReportCallback(str);
 }