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// Copyright 2017 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_SNAPSHOT_LINUX_THREAD_SNAPSHOT_LINUX_H_
#define CRASHPAD_SNAPSHOT_LINUX_THREAD_SNAPSHOT_LINUX_H_
#include <stdint.h>
#include "base/macros.h"
#include "build/build_config.h"
#include "snapshot/cpu_context.h"
#include "snapshot/linux/process_reader_linux.h"
#include "snapshot/memory_snapshot.h"
#include "snapshot/memory_snapshot_generic.h"
#include "snapshot/thread_snapshot.h"
#include "util/misc/initialization_state_dcheck.h"
namespace crashpad {
namespace internal {
//! \brief A ThreadSnapshot of a thread on a Linux system.
class ThreadSnapshotLinux final : public ThreadSnapshot {
public:
ThreadSnapshotLinux();
~ThreadSnapshotLinux() override;
//! \brief Initializes the object.
//!
//! \param[in] process_reader A ProcessReaderLinux for the process containing
//! the thread.
//! \param[in] thread The thread within the ProcessReaderLinux for
//! which the snapshot should be created.
//!
//! \return `true` if the snapshot could be created, `false` otherwise with
//! a message logged.
bool Initialize(ProcessReaderLinux* process_reader,
const ProcessReaderLinux::Thread& thread);
// ThreadSnapshot:
const CPUContext* Context() const override;
const MemorySnapshot* Stack() const override;
uint64_t ThreadID() const override;
int SuspendCount() const override;
int Priority() const override;
uint64_t ThreadSpecificDataAddress() const override;
std::vector<const MemorySnapshot*> ExtraMemory() const override;
private:
union {
#if defined(ARCH_CPU_X86_FAMILY)
CPUContextX86 x86;
CPUContextX86_64 x86_64;
#elif defined(ARCH_CPU_ARM_FAMILY)
CPUContextARM arm;
CPUContextARM64 arm64;
#elif defined(ARCH_CPU_MIPS_FAMILY)
CPUContextMIPS mipsel;
CPUContextMIPS64 mips64;
#else
#error Port.
#endif // ARCH_CPU_X86_FAMILY
} context_union_;
CPUContext context_;
MemorySnapshotGeneric stack_;
LinuxVMAddress thread_specific_data_address_;
pid_t thread_id_;
int priority_;
InitializationStateDcheck initialized_;
DISALLOW_COPY_AND_ASSIGN(ThreadSnapshotLinux);
};
} // namespace internal
} // namespace crashpad
#endif // CRASHPAD_SNAPSHOT_LINUX_THREAD_SNAPSHOT_LINUX_H_