Make CallocDiesOnOOM return false under TSan and ASan. Their allocators return NULL in the case of …

base/security_unittest.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
@@ skipping 48 matching lines @@
   char* g_slice = getenv("G_SLICE");
   if (g_slice && !strcmp(g_slice, "always-malloc"))
     return true;
 #endif
   return false;
 }
 
 bool CallocDiesOnOOM() {
 // The wrapper function in base/process_util_linux.cc that is used when we
 // compile without TCMalloc will just die on OOM instead of returning NULL.
-#if defined(OS_LINUX) && defined(NO_TCMALLOC)
+// This function is explicitly disabled if we compile with AddressSanitizer,
+// MemorySanitizer or ThreadSanitizer.
+#if defined(OS_LINUX) && defined(NO_TCMALLOC) && \
+    (!defined(ADDRESS_SANITIZER) && \
+     !defined(MEMORY_SANITIZER) && \
+     !defined(THREAD_SANITIZER))
   return true;
 #else
   return false;
 #endif
 }
 
 // Fake test that allow to know the state of TCMalloc by looking at bots.
 TEST(SecurityTest, TCMALLOC_TEST(IsTCMallocDynamicallyBypassed)) {
   printf("Malloc is dynamically bypassed: %s\n",
          IsTcMallocBypassed() ? "yes." : "no.");
@@ skipping 208 matching lines @@
   // kRandomMask, so we use it as an additional detection mechanism.
   const uintptr_t kRandomMask = 0x3fffffffffffULL;
   bool impossible_random_address =
       reinterpret_cast<uintptr_t>(ptr.get()) & ~kRandomMask;
   EXPECT_FALSE(impossible_random_address);
 }
 
 #endif  // (defined(OS_LINUX) || defined(OS_CHROMEOS)) && defined(__x86_64__)
 
 }  // namespace