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..01b7614e79b2e2ede4f6de57758586ee462dd0e7 100644
--- a/base/process/memory_linux.cc
+++ b/base/process/memory_linux.cc
@@ -115,6 +115,10 @@ int posix_memalign(void** ptr, size_t alignment, size_t size) {
 
 }  // extern C
 
+void* UncheckedMalloc(size_t size) {
+  return __libc_malloc(size);
+}
+
 #else
 
 // TODO(mostynb@opera.com): dlsym dance
@@ -123,6 +127,29 @@ int posix_memalign(void** ptr, size_t alignment, size_t size) {
 
 #endif  // !*_SANITIZER
 
+#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
+    defined(THREAD_SANITIZER) || defined(LEAK_SANITIZER) || \
+    (!defined(LIBC_GLIBC) && !defined(USE_TCMALLOC))
+
+void* UncheckedMalloc(size_t size) {
+  return malloc(size);
+}
+
+#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, alloc_size);
+  return result;
+}
+
 void EnableTerminationOnHeapCorruption() {
   // On Linux, there nothing to do AFAIK.
 }