123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110 |
- // 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_EXCEPTION_SNAPSHOT_LINUX_H_
- #define CRASHPAD_SNAPSHOT_LINUX_EXCEPTION_SNAPSHOT_LINUX_H_
- #include <stdint.h>
- #include <sys/types.h>
- #include <vector>
- #include "build/build_config.h"
- #include "snapshot/cpu_context.h"
- #include "snapshot/exception_snapshot.h"
- #include "snapshot/linux/process_reader_linux.h"
- #include "snapshot/memory_snapshot.h"
- #include "snapshot/memory_snapshot_generic.h"
- #include "util/linux/address_types.h"
- #include "util/misc/initialization_state_dcheck.h"
- namespace crashpad {
- namespace internal {
- //! \brief An ExceptionSnapshot of an signal received by a running (or crashed)
- //! process on a Linux system.
- class ExceptionSnapshotLinux final : public ExceptionSnapshot {
- public:
- ExceptionSnapshotLinux();
- ExceptionSnapshotLinux(const ExceptionSnapshotLinux&) = delete;
- ExceptionSnapshotLinux& operator=(const ExceptionSnapshotLinux&) = delete;
- ~ExceptionSnapshotLinux() override;
- //! \brief Initializes the object.
- //!
- //! \param[in] process_reader A ProcessReaderLinux for the process that
- //! received
- //! the signal.
- //! \param[in] siginfo_address The address in the target process' address
- //! space of the siginfo_t passed to the signal handler.
- //! \param[in] context_address The address in the target process' address
- //! space of the ucontext_t passed to the signal handler.
- //! \param[in] thread_id The thread ID of the thread that received the signal.
- //!
- //! \return `true` if the snapshot could be created, `false` otherwise with
- //! an appropriate message logged.
- bool Initialize(ProcessReaderLinux* process_reader,
- LinuxVMAddress siginfo_address,
- LinuxVMAddress context_address,
- pid_t thread_id,
- uint32_t* gather_indirectly_referenced_memory_cap);
- // 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:
- template <typename Traits>
- bool ReadSiginfo(ProcessReaderLinux* reader, LinuxVMAddress siginfo_address);
- template <typename Traits>
- bool ReadContext(ProcessReaderLinux* reader, LinuxVMAddress context_address);
- 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;
- #elif defined(ARCH_CPU_RISCV_FAMILY)
- CPUContextRISCV riscv;
- CPUContextRISCV64 riscv64;
- #endif
- } context_union_;
- CPUContext context_;
- std::vector<uint64_t> codes_;
- std::vector<std::unique_ptr<internal::MemorySnapshotGeneric>> extra_memory_;
- uint64_t thread_id_;
- uint64_t exception_address_;
- uint32_t signal_number_;
- uint32_t signal_code_;
- InitializationStateDcheck initialized_;
- };
- } // namespace internal
- } // namespace crashpad
- #endif // CRASHPAD_SNAPSHOT_LINUX_EXCEPTION_SNAPSHOT_LINUX_H_
|