base/process/launch_mac.cc

   1 // Copyright (c) 2012 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 "base/process/launch.h"
   6
   7 #include <mach/mach.h>
   8
   9 namespace base {
  10
  11 void RestoreDefaultExceptionHandler() {
  12   // This function is tailored to remove the Breakpad exception handler.
  13   // exception_mask matches s_exception_mask in
  14   // breakpad/src/client/mac/handler/exception_handler.cc
  15   const exception_mask_t exception_mask = EXC_MASK_BAD_ACCESS |
  16                                           EXC_MASK_BAD_INSTRUCTION |
  17                                           EXC_MASK_ARITHMETIC |
  18                                           EXC_MASK_BREAKPOINT;
  19
  20   // Setting the exception port to MACH_PORT_NULL may not be entirely
  21   // kosher to restore the default exception handler, but in practice,
  22   // it results in the exception port being set to Apple Crash Reporter,
  23   // the desired behavior.
  24   task_set_exception_ports(mach_task_self(), exception_mask, MACH_PORT_NULL,
  25                            EXCEPTION_DEFAULT, THREAD_STATE_NONE);
  26 }
  27
  28 }  // namespace base