Make possible to check memory allocations inside chromium

base/process/memory_linux.cc

Index: base/process/memory_linux.cc
diff --git a/base/process/memory_linux.cc b/base/process/memory_linux.cc
index f81429b2ac0d7ed72eeeb3d2c4d7882ff6428744..51e53fdfde23131af48d07a26a9a3308da899c92 100644
--- a/base/process/memory_linux.cc
+++ b/base/process/memory_linux.cc
@@ -180,4 +180,31 @@ bool AdjustOOMScore(ProcessId process, int score) {
   return false;
 }
 
+#if defined(USE_TCMALLOC)
+void* tc_try_malloc(size_t size) __THROW;
+#endif
+
+void* UncheckedMalloc(size_t size) {
+#if defined(USE_TCMALLOC)
+  return tc_try_malloc(size);
+#elif defined(LIBC_GLIBC)
+  return __libc_malloc(size);
+#else
+#error UncheckedMalloc not implemented on this OS/platform
+#endif
+}
+
+void* UncheckedCalloc(size_t num_items, size_t size) {
+  const size_t alloc_size = num_items * size;
+
+  // Overflow check
+  if (alloc_size && (alloc_size / size) != num_items)
+    return NULL;
+
+  void* result = UncheckedMalloc(alloc_size);
+  if (result)
+    memset(result, 0, size);

[Scott Hess - ex-Googler, 2013/10/31 21:54:39]

size -> alloc_size.

+  return result;
+}
+
 }  // namespace base