| // Copyright 2020 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. |
| |
| #include "snapshot/ios/exception_snapshot_ios.h" |
| |
| #include "base/logging.h" |
| #include "base/mac/mach_logging.h" |
| #include "base/strings/stringprintf.h" |
| #include "snapshot/cpu_context.h" |
| #include "snapshot/mac/cpu_context_mac.h" |
| #include "util/misc/from_pointer_cast.h" |
| |
| namespace crashpad { |
| namespace internal { |
| |
| ExceptionSnapshotIOS::ExceptionSnapshotIOS() |
| : ExceptionSnapshot(), |
| context_(), |
| codes_(), |
| thread_id_(0), |
| exception_address_(0), |
| signal_number_(0), |
| signal_code_(0), |
| initialized_() {} |
| |
| ExceptionSnapshotIOS::~ExceptionSnapshotIOS() {} |
| |
| bool ExceptionSnapshotIOS::Initialize(const siginfo_t* siginfo, |
| const ucontext_t* context) { |
| INITIALIZATION_STATE_SET_INITIALIZING(initialized_); |
| |
| if (!context) |
| return false; |
| |
| mcontext_t mcontext = context->uc_mcontext; |
| #if defined(ARCH_CPU_X86_64) |
| context_.architecture = kCPUArchitectureX86_64; |
| context_.x86_64 = &context_x86_64_; |
| x86_debug_state64_t empty_debug_state; |
| InitializeCPUContextX86_64(&context_x86_64_, |
| THREAD_STATE_NONE, |
| nullptr, |
| 0, |
| &mcontext->__ss, |
| &mcontext->__fs, |
| &empty_debug_state); |
| #elif defined(ARCH_CPU_ARM64) |
| context_.architecture = kCPUArchitectureARM64; |
| context_.arm64 = &context_arm64_; |
| InitializeCPUContextARM64(&context_arm64_, &mcontext->__ss, &mcontext->__ns); |
| #endif |
| |
| // Thread ID. |
| thread_identifier_info identifier_info; |
| mach_msg_type_number_t count = THREAD_IDENTIFIER_INFO_COUNT; |
| kern_return_t kr = |
| thread_info(mach_thread_self(), |
| THREAD_IDENTIFIER_INFO, |
| reinterpret_cast<thread_info_t>(&identifier_info), |
| &count); |
| if (kr != KERN_SUCCESS) { |
| MACH_LOG(ERROR, kr) << "thread_identifier_info"; |
| } else { |
| thread_id_ = identifier_info.thread_id; |
| } |
| |
| signal_number_ = siginfo->si_signo; |
| signal_code_ = siginfo->si_code; |
| exception_address_ = FromPointerCast<uintptr_t>(siginfo->si_addr); |
| |
| INITIALIZATION_STATE_SET_VALID(initialized_); |
| return true; |
| } |
| |
| const CPUContext* ExceptionSnapshotIOS::Context() const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| return &context_; |
| } |
| |
| uint64_t ExceptionSnapshotIOS::ThreadID() const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| return thread_id_; |
| } |
| |
| uint32_t ExceptionSnapshotIOS::Exception() const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| return signal_number_; |
| } |
| |
| uint32_t ExceptionSnapshotIOS::ExceptionInfo() const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| return signal_code_; |
| } |
| |
| uint64_t ExceptionSnapshotIOS::ExceptionAddress() const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| return exception_address_; |
| } |
| |
| const std::vector<uint64_t>& ExceptionSnapshotIOS::Codes() const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| return codes_; |
| } |
| |
| std::vector<const MemorySnapshot*> ExceptionSnapshotIOS::ExtraMemory() const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| return std::vector<const MemorySnapshot*>(); |
| } |
| |
| } // namespace internal |
| } // namespace crashpad |