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-rw-r--r--third_party/tcmalloc/chromium/src/tcmalloc.cc8
1 files changed, 5 insertions, 3 deletions
diff --git a/third_party/tcmalloc/chromium/src/tcmalloc.cc b/third_party/tcmalloc/chromium/src/tcmalloc.cc
index 4afe5e7..51fe5b3 100644
--- a/third_party/tcmalloc/chromium/src/tcmalloc.cc
+++ b/third_party/tcmalloc/chromium/src/tcmalloc.cc
@@ -1791,11 +1791,13 @@ void *(*__MALLOC_HOOK_VOLATILE __memalign_hook)(size_t, size_t, const void *) =
// to be hashed encoding of the location, so that they can't be copied over a
// different region (by accident) without being detected (most of the time).
-// Uncomment the following define to turn on all the TCMalloc checking.
-// It will cost abotu 2% in performance, but it will catch double frees (most of
+// Enable the following define to turn on all the TCMalloc checking.
+// It will cost about 2% in performance, but it will catch double frees (most of
// the time), and will often catch allocated-buffer overrun errors. This
// validation is only active when TCMalloc is used as the allocator.
-// #define TCMALLOC_VALIDATION
+#ifndef NDEBUG
+#define TCMALLOC_VALIDATION
+#endif
#if !defined(TCMALLOC_VALIDATION)