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