| // Copyright 2017 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_LINUX_CPU_CONTEXT_LINUX_H_ |
| #define CRASHPAD_SNAPSHOT_LINUX_CPU_CONTEXT_LINUX_H_ |
| |
| #include "build/build_config.h" |
| #include "snapshot/cpu_context.h" |
| #include "snapshot/linux/signal_context.h" |
| #include "util/linux/thread_info.h" |
| |
| namespace crashpad { |
| namespace internal { |
| |
| #if defined(ARCH_CPU_X86_FAMILY) || DOXYGEN |
| |
| //! \{ |
| //! \brief Initializes a CPUContextX86 structure from native context structures |
| //! on Linux. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[in] float_context The native float context. |
| //! \param[out] context The CPUContextX86 structure to initialize. |
| void InitializeCPUContextX86(const ThreadContext::t32_t& thread_context, |
| const FloatContext::f32_t& float_context, |
| CPUContextX86* context); |
| |
| void InitializeCPUContextX86(const SignalThreadContext32& thread_context, |
| const SignalFloatContext32& float_context, |
| CPUContextX86* context); |
| //! \} |
| |
| //! \brief Initializes GPR and debug state in a CPUContextX86 from a native |
| //! signal context structure on Linux. |
| //! |
| //! Floating point state and debug registers are initialized to zero. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[out] context The CPUContextX86 structure to initialize. |
| void InitializeCPUContextX86_NoFloatingPoint( |
| const SignalThreadContext32& thread_context, |
| CPUContextX86* context); |
| |
| //! \{ |
| //! \brief Initializes a CPUContextX86_64 structure from native context |
| //! structures on Linux. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[in] float_context The native float context. |
| //! \param[out] context The CPUContextX86_64 structure to initialize. |
| void InitializeCPUContextX86_64(const ThreadContext::t64_t& thread_context, |
| const FloatContext::f64_t& float_context, |
| CPUContextX86_64* context); |
| |
| void InitializeCPUContextX86_64(const SignalThreadContext64& thread_context, |
| const SignalFloatContext64& float_context, |
| CPUContextX86_64* context); |
| //! \} |
| |
| //! \brief Initializes GPR and debug state in a CPUContextX86_64 from a native |
| //! signal context structure on Linux. |
| //! |
| //! Floating point state and debug registers are initialized to zero. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[out] context The CPUContextX86_64 structure to initialize. |
| void InitializeCPUContextX86_64_NoFloatingPoint( |
| const SignalThreadContext64& thread_context, |
| CPUContextX86_64* context); |
| |
| #endif // ARCH_CPU_X86_FAMILY || DOXYGEN |
| |
| #if defined(ARCH_CPU_ARM_FAMILY) || DOXYGEN |
| |
| //! \brief Initializes a CPUContextARM structure from native context structures |
| //! on Linux. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[in] float_context The native float context. |
| //! \param[out] context The CPUContextARM structure to initialize. |
| void InitializeCPUContextARM(const ThreadContext::t32_t& thread_context, |
| const FloatContext::f32_t& float_context, |
| CPUContextARM* context); |
| |
| //! \brief Initializes GPR state in a CPUContextARM from a native signal context |
| //! structure on Linux. |
| //! |
| //! Floating point state is initialized to zero. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[out] context The CPUContextARM structure to initialize. |
| void InitializeCPUContextARM_NoFloatingPoint( |
| const SignalThreadContext32& thread_context, |
| CPUContextARM* context); |
| |
| //! \brief Initializes a CPUContextARM64 structure from native context |
| //! structures on Linux. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[in] float_context The native float context. |
| //! \param[out] context The CPUContextARM64 structure to initialize. |
| void InitializeCPUContextARM64(const ThreadContext::t64_t& thread_context, |
| const FloatContext::f64_t& float_context, |
| CPUContextARM64* context); |
| |
| //! \brief Initializes GPR state in a CPUContextARM64 from a native context |
| //! structure on Linux. |
| //! |
| //! Floating point state is initialized to zero. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[out] context The CPUContextARM64 structure to initialize. |
| void InitializeCPUContextARM64_NoFloatingPoint( |
| const ThreadContext::t64_t& thread_context, |
| CPUContextARM64* context); |
| |
| //! \brief Initializes FPSIMD state in a CPUContextARM64 from a native fpsimd |
| //! signal context structure on Linux. |
| //! |
| //! General purpose registers are not initialized. |
| //! |
| //! \param[in] float_context The native fpsimd context. |
| //! \param[out] context The CPUContextARM64 structure to initialize. |
| void InitializeCPUContextARM64_OnlyFPSIMD( |
| const SignalFPSIMDContext& float_context, |
| CPUContextARM64* context); |
| |
| #endif // ARCH_CPU_ARM_FAMILY || DOXYGEN |
| |
| #if defined(ARCH_CPU_MIPS_FAMILY) || DOXYGEN |
| |
| //! \brief Initializes a CPUContextMIPS structure from native context |
| //! structures on Linux. |
| //! |
| //! This function has template specializations for MIPSEL and MIPS64EL |
| //! architecture contexts, using ContextTraits32 or ContextTraits64 as template |
| //! parameter, respectively. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[in] float_context The native float context. |
| //! \param[out] context The CPUContextMIPS structure to initialize. |
| template <typename Traits> |
| void InitializeCPUContextMIPS( |
| const typename Traits::SignalThreadContext& thread_context, |
| const typename Traits::SignalFloatContext& float_context, |
| typename Traits::CPUContext* context) { |
| static_assert(sizeof(context->regs) == sizeof(thread_context.regs), |
| "registers size mismatch"); |
| static_assert(sizeof(context->fpregs) == sizeof(float_context.fpregs), |
| "fp registers size mismatch"); |
| memcpy(&context->regs, &thread_context.regs, sizeof(context->regs)); |
| context->mdlo = thread_context.lo; |
| context->mdhi = thread_context.hi; |
| context->cp0_epc = thread_context.cp0_epc; |
| context->cp0_badvaddr = thread_context.cp0_badvaddr; |
| context->cp0_status = thread_context.cp0_status; |
| context->cp0_cause = thread_context.cp0_cause; |
| |
| memcpy(&context->fpregs, &float_context.fpregs, sizeof(context->fpregs)); |
| context->fpcsr = float_context.fpcsr; |
| context->fir = float_context.fpu_id; |
| } |
| |
| #endif // ARCH_CPU_MIPS_FAMILY || DOXYGEN |
| |
| #if defined(ARCH_CPU_RISCV64) || DOXYGEN |
| |
| //! \brief Initializes a CPUContextRISCV64 structure from native context |
| //! structures on Linux. |
| //! |
| //! \param[in] thread_context The native thread context. |
| //! \param[in] float_context The native float context. |
| //! \param[out] context The CPUContextRISCV64 structure to initialize. |
| void InitializeCPUContextRISCV64(const ThreadContext::t64_t& thread_context, |
| const FloatContext::f64_t& float_context, |
| CPUContextRISCV64* context); |
| |
| #endif // ARCH_CPU_RISCV64 || DOXYGEN |
| |
| } // namespace internal |
| } // namespace crashpad |
| |
| #endif // CRASHPAD_SNAPSHOT_LINUX_CPU_CONTEXT_LINUX_H_ |