[compiler-rt] r192990 - [asan] fix stack trace printing on Mac

[Kostya Serebryany]

Author: kcc
Date: Fri Oct 18 12:46:43 2013
New Revision: 192990

URL: http://llvm.org/viewvc/llvm-project?rev=192990&view=rev
Log:
[asan] fix stack trace printing on Mac

Modified:
    compiler-rt/trunk/lib/asan/asan_stack.cc

Modified: compiler-rt/trunk/lib/asan/asan_stack.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_stack.cc?rev=192990&r1=192989&r2=192990&view=diff
==============================================================================
--- compiler-rt/trunk/lib/asan/asan_stack.cc (original)
+++ compiler-rt/trunk/lib/asan/asan_stack.cc Fri Oct 18 12:46:43 2013
@@ -25,6 +25,10 @@ static bool MaybeCallAsanSymbolize(const
 }
 
 void PrintStack(const uptr *trace, uptr size) {
+  if (!trace) {
+    Printf("<empty stack>\n");
+    return;
+  }
   StackTrace::PrintStack(trace, size, common_flags()->symbolize,
                          MaybeCallAsanSymbolize);
 }