[PATCH] D19653: [tsan] Return 0 from malloc_size for non-malloc'd pointers

[Mike Aizatsky via llvm-commits]

aizatsky added a subscriber: aizatsky.

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Comment at: lib/tsan/rtl/tsan_mman.cc:167
@@ -166,2 +166,3 @@
   MBlock *b = ctx->metamap.GetBlock((uptr)p);
-  return b ? b->siz : 0;
+  if (!b)
+    return 0;  // Not a valid pointer.
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this changes behavior on all platforms, not only Mac, right? Is it intended?


http://reviews.llvm.org/D19653