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4e2a190ad6
Gather most of the necessary information for the thread snapshot. Note that: - The 'capture' portion of this CL will be moved out of the snapshot interface and into a separate in-process dump to disk location. - All of the pointer dereferences need to be wrapped in vm_read. - The read-fast-and-dump logic in thread_snapshot may end up in a different file completely, but until we pick a serialization/deserialization method, keep it as-is. Change-Id: I80ba323cb6a59ac0dd1bba9150d047ba83cc4dad Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2085572 Reviewed-by: Mark Mentovai <mark@chromium.org> Reviewed-by: Justin Cohen <justincohen@chromium.org>
128 lines
6.7 KiB
C++
128 lines
6.7 KiB
C++
// 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_SNAPSHOT_MAC_CPU_CONTEXT_MAC_H_
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#define CRASHPAD_SNAPSHOT_MAC_CPU_CONTEXT_MAC_H_
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#include <mach/mach.h>
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#include "build/build_config.h"
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#include "snapshot/cpu_context.h"
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#include "util/mach/mach_extensions.h"
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namespace crashpad {
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namespace internal {
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#if defined(ARCH_CPU_X86_FAMILY) || DOXYGEN
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//! \brief Initializes a CPUContextX86 structure from native context structures
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//! on macOS.
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//!
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//! \a flavor, \a state, and \a state_count may be supplied by exception
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//! handlers in order for the \a context parameter to be initialized by the
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//! thread state received by the exception handler to the extent possible. In
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//! that case, whatever thread state specified by these three parameters will
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//! supersede \a x86_thread_state32, \a x86_float_state32, or \a
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//! x86_debug_state32. If thread state in this format is not available, \a
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//! flavor may be set to `THREAD_STATE_NONE`, and all of \a x86_thread_state32,
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//! \a x86_float_state32, and \a x86_debug_state32 will be honored.
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//!
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//! If \a flavor, \a state, and \a state_count are provided but do not contain
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//! valid values, a message will be logged and their values will be ignored as
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//! though \a flavor were specified as `THREAD_STATE_NONE`.
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//!
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//! \param[out] context The CPUContextX86 structure to initialize.
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//! \param[in] flavor The native thread state flavor of \a state. This may be
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//! `x86_THREAD_STATE32`, `x86_FLOAT_STATE32`, `x86_DEBUG_STATE32`,
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//! `x86_THREAD_STATE`, `x86_FLOAT_STATE`, or `x86_DEBUG_STATE`. It may also
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//! be `THREAD_STATE_NONE` if \a state is not supplied (and is `nullptr`).
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//! \param[in] state The native thread state, which may be a casted pointer to
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//! `x86_thread_state32_t`, `x86_float_state32_t`, `x86_debug_state32_t`,
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//! `x86_thread_state`, `x86_float_state`, or `x86_debug_state`. This
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//! parameter may be `nullptr` to not supply this data, in which case \a
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//! flavor must be `THREAD_STATE_NONE`. If a “universal” structure is used,
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//! it must carry 32-bit state data of the correct type.
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//! \param[in] state_count The number of `natural_t`-sized (`int`-sized) units
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//! in \a state. This may be 0 if \a state is `nullptr`.
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//! \param[in] x86_thread_state32 The state of the thread’s integer registers.
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//! \param[in] x86_float_state32 The state of the thread’s floating-point
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//! registers.
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//! \param[in] x86_debug_state32 The state of the thread’s debug registers.
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void InitializeCPUContextX86(CPUContextX86* context,
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thread_state_flavor_t flavor,
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ConstThreadState state,
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mach_msg_type_number_t state_count,
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const x86_thread_state32_t* x86_thread_state32,
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const x86_float_state32_t* x86_float_state32,
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const x86_debug_state32_t* x86_debug_state32);
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//! \brief Initializes a CPUContextX86_64 structure from native context
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//! structures on macOS.
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//!
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//! \a flavor, \a state, and \a state_count may be supplied by exception
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//! handlers in order for the \a context parameter to be initialized by the
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//! thread state received by the exception handler to the extent possible. In
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//! that case, whatever thread state specified by these three parameters will
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//! supersede \a x86_thread_state64, \a x86_float_state64, or \a
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//! x86_debug_state64. If thread state in this format is not available, \a
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//! flavor may be set to `THREAD_STATE_NONE`, and all of \a x86_thread_state64,
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//! \a x86_float_state64, and \a x86_debug_state64 will be honored.
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//!
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//! If \a flavor, \a state, and \a state_count are provided but do not contain
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//! valid values, a message will be logged and their values will be ignored as
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//! though \a flavor were specified as `THREAD_STATE_NONE`.
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//!
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//! \param[out] context The CPUContextX86_64 structure to initialize.
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//! \param[in] flavor The native thread state flavor of \a state. This may be
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//! `x86_THREAD_STATE64`, `x86_FLOAT_STATE64`, `x86_DEBUG_STATE64`,
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//! `x86_THREAD_STATE`, `x86_FLOAT_STATE`, or `x86_DEBUG_STATE`. It may also
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//! be `THREAD_STATE_NONE` if \a state is not supplied (and is `nullptr`).
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//! \param[in] state The native thread state, which may be a casted pointer to
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//! `x86_thread_state64_t`, `x86_float_state64_t`, `x86_debug_state64_t`,
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//! `x86_thread_state`, `x86_float_state`, or `x86_debug_state`. This
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//! parameter may be `nullptr` to not supply this data, in which case \a
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//! flavor must be `THREAD_STATE_NONE`. If a “universal” structure is used,
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//! it must carry 64-bit state data of the correct type.
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//! \param[in] state_count The number of `int`-sized units in \a state. This may
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//! be 0 if \a state is `nullptr`.
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//! \param[in] x86_thread_state64 The state of the thread’s integer registers.
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//! \param[in] x86_float_state64 The state of the thread’s floating-point
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//! registers.
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//! \param[in] x86_debug_state64 The state of the thread’s debug registers.
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void InitializeCPUContextX86_64(CPUContextX86_64* context,
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thread_state_flavor_t flavor,
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ConstThreadState state,
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mach_msg_type_number_t state_count,
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const x86_thread_state64_t* x86_thread_state64,
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const x86_float_state64_t* x86_float_state64,
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const x86_debug_state64_t* x86_debug_state64);
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#elif defined(ARCH_CPU_ARM_FAMILY) || DOXYGEN
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//! \brief Initializes a CPUContextARM64 structure from native context
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//! structures.
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//!
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//! \param[out] context The CPUContextARM64 structure to initialize.
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//! \param[in] arm_thread_state64 The state of the thread’s integer registers.
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//! \param[in] arm_neon_state64 The state of the thread’s floating-point
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//! registers.
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void InitializeCPUContextARM64(CPUContextARM64* context,
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const arm_thread_state64_t* arm_thread_state64,
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const arm_neon_state64_t* arm_neon_state64);
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#endif
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} // namespace internal
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} // namespace crashpad
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#endif // CRASHPAD_SNAPSHOT_MAC_CPU_CONTEXT_MAC_H_
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