// 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_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 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_RISCV_FAMILY) || DOXYGEN //! \brief Initializes a CPUContextRISCV 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 CPUContextRISCV structure to initialize. template void InitializeCPUContextRISCV( const typename Traits::SignalThreadContext& thread_context, const typename Traits::SignalFloatContext& float_context, typename Traits::CPUContext* context); #endif // ARCH_CPU_RISCV_FAMILY || DOXYGEN } // namespace internal } // namespace crashpad #endif // CRASHPAD_SNAPSHOT_LINUX_CPU_CONTEXT_LINUX_H_