// Copyright 2014 The Crashpad Authors. All rights reserved.
|
//
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
// you may not use this file except in compliance with the License.
|
// You may obtain a copy of the License at
|
//
|
// http://www.apache.org/licenses/LICENSE-2.0
|
//
|
// Unless required by applicable law or agreed to in writing, software
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
// See the License for the specific language governing permissions and
|
// limitations under the License.
|
|
#ifndef CRASHPAD_CLIENT_SIMULATE_CRASH_MAC_H_
|
#define CRASHPAD_CLIENT_SIMULATE_CRASH_MAC_H_
|
|
#include <mach/mach.h>
|
|
#include "util/misc/capture_context.h"
|
|
//! \file
|
|
namespace crashpad {
|
|
//! \brief Simulates a exception without crashing.
|
//!
|
//! This function searches for an `EXC_CRASH` handler in the same manner that
|
//! the kernel does, and sends it an exception message to that handler in the
|
//! format that the handler expects, considering the behavior and thread state
|
//! flavor that are registered for it. The exception sent to the handler will be
|
//! ::kMachExceptionSimulated, not `EXC_CRASH`.
|
//!
|
//! Typically, the CRASHPAD_SIMULATE_CRASH() macro will be used in preference to
|
//! this function, because it combines the context-capture operation with the
|
//! raising of a simulated exception.
|
//!
|
//! This function returns normally after the exception message is processed. If
|
//! no valid handler was found, or no handler processed the exception
|
//! successfully, a warning will be logged, but these conditions are not
|
//! considered fatal.
|
//!
|
//! \param[in] cpu_context The thread state to pass to the exception handler as
|
//! the exception context, provided that it is compatible with the thread
|
//! state flavor that the exception handler accepts. If it is not
|
//! compatible, the correct thread state for the handler will be obtained by
|
//! calling `thread_get_state()`.
|
void SimulateCrash(const NativeCPUContext& cpu_context);
|
|
} // namespace crashpad
|
|
//! \brief Captures the CPU context and simulates an exception without crashing.
|
#define CRASHPAD_SIMULATE_CRASH() \
|
do { \
|
crashpad::NativeCPUContext cpu_context; \
|
crashpad::CaptureContext(&cpu_context); \
|
crashpad::SimulateCrash(cpu_context); \
|
} while (false)
|
|
#endif // CRASHPAD_CLIENT_SIMULATE_CRASH_MAC_H_
|
