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      1 // Copyright 2015 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include <stddef.h>
      6 #include <unistd.h>
      7 
      8 // LLVM's demangler is large, and we have no need of it.  Overriding it with
      9 // our own stub version here stops a lot of code being pulled in from libc++.
     10 // More here:
     11 //   https://llvm.org/svn/llvm-project/libcxxabi/trunk/src/cxa_demangle.cpp
     12 extern "C" char* __cxa_demangle(const char* mangled_name,
     13                                 char* buf,
     14                                 size_t* n,
     15                                 int* status) {
     16   static const int kMemoryAllocFailure = -1;  // LLVM's memory_alloc_failure.
     17   if (status)
     18     *status = kMemoryAllocFailure;
     19   return nullptr;
     20 }
     21