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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_CAPTURE_CONTEXT_MAC_H_
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#define CRASHPAD_CLIENT_CAPTURE_CONTEXT_MAC_H_
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#include <mach/mach.h>
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#include "build/build_config.h"
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namespace crashpad {
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#if defined(ARCH_CPU_X86_FAMILY)
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using NativeCPUContext = x86_thread_state;
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#endif
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//! \brief Saves the CPU context.
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//!
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//! The CPU context will be captured as accurately and completely as possible,
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//! containing an atomic snapshot at the point of this function’s return. This
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//! function does not modify any registers.
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//!
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//! \param[out] cpu_context The structure to store the context in.
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//!
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//! \note On x86_64, the value for `%%rdi` will be populated with the address of
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//! this function’s argument, as mandated by the ABI. If the value of
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//! `%%rdi` prior to calling this function is needed, it must be obtained
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//! separately prior to calling this function. For example:
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//! \code
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//! uint64_t rdi;
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//! asm("movq %%rdi, %0" : "=m"(rdi));
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//! \endcode
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void CaptureContext(NativeCPUContext* cpu_context);
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} // namespace crashpad
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#endif // CRASHPAD_CLIENT_CAPTURE_CONTEXT_MAC_H_
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