Fix ASAN after r30777

src/sampler.cc

 // Copyright 2013 the V8 project 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 "src/sampler.h"
 
 #if V8_OS_POSIX && !V8_OS_CYGWIN
 
 #define USE_SIGNALS
 
@@ skipping 166 matching lines @@
 bool IsSamePage(byte* ptr1, byte* ptr2) {
   const uint32_t kPageSize = 4096;
   uintptr_t mask = ~static_cast<uintptr_t>(kPageSize - 1);
   return (reinterpret_cast<uintptr_t>(ptr1) & mask) ==
          (reinterpret_cast<uintptr_t>(ptr2) & mask);
 }
 
 
 // Check if the code at specified address could potentially be a
 // frame setup code.
-bool IsNoFrameRegion(Address address) {
+DISABLE_ASAN bool IsNoFrameRegion(Address address) {
   struct Pattern {
     int bytes_count;
     byte bytes[8];
     int offsets[4];
   };
   byte* pc = reinterpret_cast<byte*>(address);
   static Pattern patterns[] = {
 #if V8_HOST_ARCH_IA32
     // push %ebp
     // mov %esp,%ebp
@@ skipping 636 matching lines @@
     SampleStack(state);
   }
   ResumeThread(profiled_thread);
 }
 
 #endif  // USE_SIGNALS
 
 
 }  // namespace internal
 }  // namespace v8