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// Copyright 2020 The Crashpad Authors
//
// 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_SNAPSHOT_IOS_INTERMEDIATE_DUMP_EXCEPTION_SNAPSHOT_IOS_INTERMEDIATEDUMP_H_
#define CRASHPAD_SNAPSHOT_IOS_INTERMEDIATE_DUMP_EXCEPTION_SNAPSHOT_IOS_INTERMEDIATEDUMP_H_
#include <mach/mach.h>
#include <stdint.h>
#include <vector>
#include "build/build_config.h"
#include "snapshot/cpu_context.h"
#include "snapshot/exception_snapshot.h"
#include "snapshot/ios/memory_snapshot_ios_intermediate_dump.h"
#include "util/ios/ios_intermediate_dump_map.h"
#include "util/mach/mach_extensions.h"
#include "util/misc/initialization_state_dcheck.h"
namespace crashpad {
namespace internal {
//! \brief An ExceptionSnapshot of an exception sustained by a running (or
//! crashed) process on an iOS system.
class ExceptionSnapshotIOSIntermediateDump final : public ExceptionSnapshot {
public:
ExceptionSnapshotIOSIntermediateDump();
ExceptionSnapshotIOSIntermediateDump(
const ExceptionSnapshotIOSIntermediateDump&) = delete;
ExceptionSnapshotIOSIntermediateDump& operator=(
const ExceptionSnapshotIOSIntermediateDump&) = delete;
~ExceptionSnapshotIOSIntermediateDump() override;
//! \brief Initialize the snapshot as a signal exception.
//!
//! \param[in] exception_data The intermediate dump map used to initialize
//! this object.
//!
//! \return `true` if the snapshot could be created, `false` otherwise with
//! an appropriate message logged.
bool InitializeFromSignal(const IOSIntermediateDumpMap* exception_data);
//! \brief Initialize the object as a Mach exception from an intermediate
//! dump.
//!
//! \param[in] exception_data The intermediate dump map used to initialize
//! this object.
//! \param[in] thread_list The intermediate dump map containing list of
//! threads.
//!
//! \return `true` if the snapshot could be created, `false` otherwise with
//! an appropriate message logged.
bool InitializeFromMachException(const IOSIntermediateDumpMap* exception_data,
const IOSIntermediateDumpList* thread_list);
//! \brief Initialize the object as an NSException from an intermediate dump.
//!
//! \param[in] exception_data The intermediate dump map used to initialize
//! this object.
//! \param[in] thread_list The intermediate dump map containing list of
//! threads.
//!
//! \return `true` if the snapshot could be created, `false` otherwise with
//! an appropriate message logged.
bool InitializeFromNSException(const IOSIntermediateDumpMap* exception_data,
const IOSIntermediateDumpList* thread_list);
// ExceptionSnapshot:
const CPUContext* Context() const override;
uint64_t ThreadID() const override;
uint32_t Exception() const override;
uint32_t ExceptionInfo() const override;
uint64_t ExceptionAddress() const override;
const std::vector<uint64_t>& Codes() const override;
virtual std::vector<const MemorySnapshot*> ExtraMemory() const override;
private:
void LoadContextFromUncaughtNSExceptionFrames(
const IOSIntermediateDumpData* data,
const IOSIntermediateDumpMap* other_thread);
void LoadContextFromThread(const IOSIntermediateDumpMap* exception_data,
const IOSIntermediateDumpMap* other_thread);
#if defined(ARCH_CPU_X86_64)
CPUContextX86_64 context_x86_64_;
#elif defined(ARCH_CPU_ARM64)
CPUContextARM64 context_arm64_;
#else
#error Port.
#endif // ARCH_CPU_X86_64
CPUContext context_;
std::vector<uint64_t> codes_;
uint64_t thread_id_;
uintptr_t exception_address_;
uint32_t exception_;
uint32_t exception_info_;
std::vector<std::unique_ptr<internal::MemorySnapshotIOSIntermediateDump>>
extra_memory_;
InitializationStateDcheck initialized_;
};
} // namespace internal
} // namespace crashpad
#endif // CRASHPAD_SNAPSHOT_IOS_INTERMEDIATE_DUMP_EXCEPTION_SNAPSHOT_IOS_INTERMEDIATEDUMP_H_