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Issue 1647803004: Move base to DEPS (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 4 years, 10 months ago
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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 #include <servers/bootstrap.h>
9
10 #include "base/logging.h"
11
12 namespace base {
13
14 void RestoreDefaultExceptionHandler() {
15 // This function is tailored to remove the Breakpad exception handler.
16 // exception_mask matches s_exception_mask in
17 // breakpad/src/client/mac/handler/exception_handler.cc
18 const exception_mask_t exception_mask = EXC_MASK_BAD_ACCESS |
19 EXC_MASK_BAD_INSTRUCTION |
20 EXC_MASK_ARITHMETIC |
21 EXC_MASK_BREAKPOINT;
22
23 // Setting the exception port to MACH_PORT_NULL may not be entirely
24 // kosher to restore the default exception handler, but in practice,
25 // it results in the exception port being set to Apple Crash Reporter,
26 // the desired behavior.
27 task_set_exception_ports(mach_task_self(), exception_mask, MACH_PORT_NULL,
28 EXCEPTION_DEFAULT, THREAD_STATE_NONE);
29 }
30
31 void ReplaceBootstrapPort(const std::string& new_bootstrap_name) {
32 // This function is called between fork() and exec(), so it should take care
33 // to run properly in that situation.
34
35 mach_port_t port = MACH_PORT_NULL;
36 kern_return_t kr = bootstrap_look_up(bootstrap_port,
37 new_bootstrap_name.c_str(), &port);
38 if (kr != KERN_SUCCESS) {
39 RAW_LOG(FATAL, "Failed to look up replacement bootstrap port.");
40 }
41
42 kr = task_set_bootstrap_port(mach_task_self(), port);
43 if (kr != KERN_SUCCESS) {
44 RAW_LOG(FATAL, "Failed to replace bootstrap port.");
45 }
46 }
47
48 } // namespace base
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