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49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/process/launch.h"
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#include <mach/mach.h>
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#include <servers/bootstrap.h>
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#include "base/logging.h"
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namespace base {
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void RestoreDefaultExceptionHandler() {
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// This function is tailored to remove the Breakpad exception handler.
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// exception_mask matches s_exception_mask in
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// breakpad/src/client/mac/handler/exception_handler.cc
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const exception_mask_t exception_mask = EXC_MASK_BAD_ACCESS |
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EXC_MASK_BAD_INSTRUCTION |
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EXC_MASK_ARITHMETIC |
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EXC_MASK_BREAKPOINT;
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// Setting the exception port to MACH_PORT_NULL may not be entirely
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// kosher to restore the default exception handler, but in practice,
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// it results in the exception port being set to Apple Crash Reporter,
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// the desired behavior.
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task_set_exception_ports(mach_task_self(), exception_mask, MACH_PORT_NULL,
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EXCEPTION_DEFAULT, THREAD_STATE_NONE);
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}
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void ReplaceBootstrapPort(const std::string& new_bootstrap_name) {
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// This function is called between fork() and exec(), so it should take care
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// to run properly in that situation.
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mach_port_t port = MACH_PORT_NULL;
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kern_return_t kr = bootstrap_look_up(bootstrap_port,
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new_bootstrap_name.c_str(), &port);
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if (kr != KERN_SUCCESS) {
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RAW_LOG(FATAL, "Failed to look up replacement bootstrap port.");
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}
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kr = task_set_bootstrap_port(mach_task_self(), port);
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if (kr != KERN_SUCCESS) {
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RAW_LOG(FATAL, "Failed to replace bootstrap port.");
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}
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}
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} // namespace base
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