A deeper heap profile dumper in third_party/tcmalloc/chromium.

third_party/tcmalloc/chromium/src/malloc_hook.cc

Index: third_party/tcmalloc/chromium/src/malloc_hook.cc
diff --git a/third_party/tcmalloc/chromium/src/malloc_hook.cc b/third_party/tcmalloc/chromium/src/malloc_hook.cc
index f6af7d816179e91afabcc6838ad5fbb99ec1791e..d7afee38a7f0b34d10054331f34dd91c502df143 100644
--- a/third_party/tcmalloc/chromium/src/malloc_hook.cc
+++ b/third_party/tcmalloc/chromium/src/malloc_hook.cc
@@ -677,7 +677,9 @@ extern "C" int MallocHook_GetCallerStackTrace(void** result, int max_depth,
     if (InHookCaller(stack[i])) {
       RAW_VLOG(10, "Found hooked allocator at %d: %p <- %p",
                    i, stack[i], stack[i+1]);
-      i += 1;  // skip hook caller frame
+      // i += 1;  // skip hook caller frame

[Alexander Potapenko, 2011/12/20 13:57:23]

Please add an "if FLAG_deep_profile..." here instead.

[Dai Mikurube (NOT FULLTIME), 2011/12/21 09:13:49]

Done.

+      // In deep profiler, we want to know the caller frame to
+      // distinguish mmap from tcmalloc
       depth -= i;  // correct depth
       if (depth > max_depth) depth = max_depth;
       copy(stack + i, stack + i + depth, result);