launch_mac.cc revision 9ab5563a3196760eb381d102cbb2bc0f7abc6a50 
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
9namespace base {
10
11void 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
29