tsan: explictly say when we fail to restore a stack trace

llvm-svn: 168423
2012-11-21 11:44:20 +00:00 · 2012-11-21 11:44:20 +00:00 · aeed45cde0
parent 3a3488e4e1
commit aeed45cde0
1 changed files with 4 additions and 0 deletions
--- a/compiler-rt/lib/tsan/rtl/tsan_report.cc
+++ b/compiler-rt/lib/tsan/rtl/tsan_report.cc
@ -50,6 +50,10 @@ static void PrintHeader(ReportType typ) {
 }

 void PrintStack(const ReportStack *ent) {
+  if (ent == 0) {
+    Printf("    [failed to restore the stack]\n");
+    return;
+  }
  for (int i = 0; ent; ent = ent->next, i++) {
    Printf("    #%d %s %s:%d", i, ent->func, ent->file, ent->line);
    if (ent->col)