Index: lldb/source/Host/common/HostInfoBase.cpp =================================================================== --- lldb/source/Host/common/HostInfoBase.cpp +++ lldb/source/Host/common/HostInfoBase.cpp @@ -339,6 +339,7 @@ case llvm::Triple::ppc64: case llvm::Triple::ppc64le: case llvm::Triple::x86_64: + case llvm::Triple::riscv64: arch_64.SetTriple(triple); arch_32.SetTriple(triple.get32BitArchVariant()); break; Index: lldb/source/Plugins/Process/Linux/CMakeLists.txt =================================================================== --- lldb/source/Plugins/Process/Linux/CMakeLists.txt +++ lldb/source/Plugins/Process/Linux/CMakeLists.txt @@ -9,6 +9,7 @@ NativeRegisterContextLinux_arm.cpp NativeRegisterContextLinux_arm64.cpp NativeRegisterContextLinux_ppc64le.cpp + NativeRegisterContextLinux_riscv64.cpp NativeRegisterContextLinux_s390x.cpp NativeRegisterContextLinux_x86_64.cpp NativeThreadLinux.cpp Index: lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_riscv64.h =================================================================== --- /dev/null +++ lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_riscv64.h @@ -0,0 +1,95 @@ +//===-- NativeRegisterContextLinux_riscv64.h -------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#if defined(__riscv) && __riscv_xlen == 64 + +#ifndef lldb_NativeRegisterContextLinux_riscv64_h +#define lldb_NativeRegisterContextLinux_riscv64_h + +#include "Plugins/Process/Linux/NativeRegisterContextLinux.h" +#include "Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.h" + +#include + +namespace lldb_private { +namespace process_linux { + +class NativeProcessLinux; + +class NativeRegisterContextLinux_riscv64 : public NativeRegisterContextLinux { +public: + NativeRegisterContextLinux_riscv64( + const ArchSpec &target_arch, NativeThreadProtocol &native_thread, + std::unique_ptr register_info_up); + + uint32_t GetRegisterSetCount() const override; + + uint32_t GetUserRegisterCount() const override; + + const RegisterSet *GetRegisterSet(uint32_t set_index) const override; + + Status ReadRegister(const RegisterInfo *reg_info, + RegisterValue ®_value) override; + + Status WriteRegister(const RegisterInfo *reg_info, + const RegisterValue ®_value) override; + + Status ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override; + + Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override; + + void InvalidateAllRegisters() override; + + std::vector + GetExpeditedRegisters(ExpeditedRegs expType) const override; + + bool RegisterOffsetIsDynamic() const override { return true; } + +protected: + Status ReadGPR() override; + + Status WriteGPR() override; + + Status ReadFPR() override; + + Status WriteFPR() override; + + void *GetGPRBuffer() override { return &m_gpr_riscv64; } + + // GetGPRBufferSize returns sizeof riscv64 GPR ptrace buffer, it is different + // from GetGPRSize which returns sizeof RegisterInfoPOSIX_riscv64::GPR. + size_t GetGPRBufferSize() { return sizeof(m_gpr_riscv64); } + + void *GetFPRBuffer() override { return &m_fpr; } + + size_t GetFPRSize() override { return sizeof(m_fpr); } + +private: + bool m_gpr_is_valid; + bool m_fpu_is_valid; + + struct user_regs_struct m_gpr_riscv64; // 64-bit general purpose registers. + + RegisterInfoPOSIX_riscv64::FPR + m_fpr; // floating-point registers including extended register sets. + + bool IsGPR(unsigned reg) const; + + bool IsFPR(unsigned reg) const; + + uint32_t CalculateFprOffset(const RegisterInfo *reg_info) const; + + RegisterInfoPOSIX_riscv64 &GetRegisterInfo() const; +}; + +} // namespace process_linux +} // namespace lldb_private + +#endif // #ifndef lldb_NativeRegisterContextLinux_riscv64_h + +#endif // defined(__riscv) && __riscv_xlen == 64 Index: lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_riscv64.cpp =================================================================== --- /dev/null +++ lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_riscv64.cpp @@ -0,0 +1,332 @@ +//===-- NativeRegisterContextLinux_riscv64.cpp ----------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#if defined(__riscv) && __riscv_xlen == 64 + +#include "NativeRegisterContextLinux_riscv64.h" + +#include "lldb/Utility/DataBufferHeap.h" +#include "lldb/Utility/Log.h" +#include "lldb/Utility/RegisterValue.h" +#include "lldb/Utility/Status.h" + +#include "Plugins/Process/Linux/NativeProcessLinux.h" +#include "Plugins/Process/Linux/Procfs.h" +#include "Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.h" + +// System includes - They have to be included after framework includes because +// they define some macros which collide with variable names in other modules +#include +// NT_PRSTATUS and NT_FPREGSET definition +#include + +#define REG_CONTEXT_SIZE (GetGPRSize() + GetFPRSize()) + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::process_linux; + +std::unique_ptr +NativeRegisterContextLinux::CreateHostNativeRegisterContextLinux( + const ArchSpec &target_arch, NativeThreadLinux &native_thread) { + switch (target_arch.GetMachine()) { + case llvm::Triple::riscv64: { + Flags opt_regsets; + auto register_info_up = + std::make_unique(target_arch, opt_regsets); + return std::make_unique( + target_arch, native_thread, std::move(register_info_up)); + } + default: + llvm_unreachable("have no register context for architecture"); + } +} + +NativeRegisterContextLinux_riscv64::NativeRegisterContextLinux_riscv64( + const ArchSpec &target_arch, NativeThreadProtocol &native_thread, + std::unique_ptr register_info_up) + : NativeRegisterContextRegisterInfo(native_thread, + register_info_up.release()), + NativeRegisterContextLinux(native_thread) { + ::memset(&m_fpr, 0, sizeof(m_fpr)); + ::memset(&m_gpr_riscv64, 0, sizeof(m_gpr_riscv64)); + + m_gpr_is_valid = false; + m_fpu_is_valid = false; +} + +RegisterInfoPOSIX_riscv64 & +NativeRegisterContextLinux_riscv64::GetRegisterInfo() const { + return static_cast( + *m_register_info_interface_up); +} + +uint32_t NativeRegisterContextLinux_riscv64::GetRegisterSetCount() const { + return GetRegisterInfo().GetRegisterSetCount(); +} + +const RegisterSet * +NativeRegisterContextLinux_riscv64::GetRegisterSet(uint32_t set_index) const { + return GetRegisterInfo().GetRegisterSet(set_index); +} + +uint32_t NativeRegisterContextLinux_riscv64::GetUserRegisterCount() const { + uint32_t count = 0; + for (uint32_t set_index = 0; set_index < GetRegisterSetCount(); ++set_index) + count += GetRegisterSet(set_index)->num_registers; + return count; +} + +Status +NativeRegisterContextLinux_riscv64::ReadRegister(const RegisterInfo *reg_info, + RegisterValue ®_value) { + Status error; + + if (!reg_info) { + error.SetErrorString("reg_info NULL"); + return error; + } + + const uint32_t reg = reg_info->kinds[lldb::eRegisterKindLLDB]; + + if (reg == LLDB_INVALID_REGNUM) + return Status("no lldb regnum for %s", reg_info && reg_info->name + ? reg_info->name + : ""); + + uint8_t *src = nullptr; + uint32_t offset = LLDB_INVALID_INDEX32; + + if (IsGPR(reg)) { + error = ReadGPR(); + if (error.Fail()) + return error; + + offset = reg_info->byte_offset; + assert(offset < GetGPRSize()); + src = (uint8_t *)GetGPRBuffer() + offset; + + } else if (IsFPR(reg)) { + error = ReadFPR(); + if (error.Fail()) + return error; + + offset = CalculateFprOffset(reg_info); + assert(offset < GetFPRSize()); + src = (uint8_t *)GetFPRBuffer() + offset; + } else + return Status("failed - register wasn't recognized to be a GPR or an FPR, " + "write strategy unknown"); + + reg_value.SetFromMemoryData(reg_info, src, reg_info->byte_size, + eByteOrderLittle, error); + + return error; +} + +Status NativeRegisterContextLinux_riscv64::WriteRegister( + const RegisterInfo *reg_info, const RegisterValue ®_value) { + Status error; + + if (!reg_info) + return Status("reg_info NULL"); + + const uint32_t reg = reg_info->kinds[lldb::eRegisterKindLLDB]; + + if (reg == LLDB_INVALID_REGNUM) + return Status("no lldb regnum for %s", reg_info->name != nullptr + ? reg_info->name + : ""); + + uint8_t *dst = nullptr; + uint32_t offset = LLDB_INVALID_INDEX32; + + if (IsGPR(reg)) { + error = ReadGPR(); + if (error.Fail()) + return error; + + assert(reg_info->byte_offset < GetGPRSize()); + dst = (uint8_t *)GetGPRBuffer() + reg_info->byte_offset; + ::memcpy(dst, reg_value.GetBytes(), reg_info->byte_size); + + return WriteGPR(); + } else if (IsFPR(reg)) { + error = ReadFPR(); + if (error.Fail()) + return error; + + offset = CalculateFprOffset(reg_info); + assert(offset < GetFPRSize()); + dst = (uint8_t *)GetFPRBuffer() + offset; + ::memcpy(dst, reg_value.GetBytes(), reg_info->byte_size); + + return WriteFPR(); + } + + return Status("Failed to write register value"); +} + +Status NativeRegisterContextLinux_riscv64::ReadAllRegisterValues( + lldb::WritableDataBufferSP &data_sp) { + Status error; + + data_sp.reset(new DataBufferHeap(REG_CONTEXT_SIZE, 0)); + + error = ReadGPR(); + if (error.Fail()) + return error; + + error = ReadFPR(); + if (error.Fail()) + return error; + + uint8_t *dst = const_cast(data_sp->GetBytes()); + ::memcpy(dst, GetGPRBuffer(), GetGPRSize()); + dst += GetGPRSize(); + ::memcpy(dst, GetFPRBuffer(), GetFPRSize()); + + return error; +} + +Status NativeRegisterContextLinux_riscv64::WriteAllRegisterValues( + const lldb::DataBufferSP &data_sp) { + Status error; + + if (!data_sp) { + error.SetErrorStringWithFormat( + "NativeRegisterContextLinux_riscv64::%s invalid data_sp provided", + __FUNCTION__); + return error; + } + + if (data_sp->GetByteSize() != REG_CONTEXT_SIZE) { + error.SetErrorStringWithFormat( + "NativeRegisterContextLinux_riscv64::%s data_sp contained mismatched " + "data size, expected %" PRIu64 ", actual %" PRIu64, + __FUNCTION__, REG_CONTEXT_SIZE, data_sp->GetByteSize()); + return error; + } + + uint8_t *src = const_cast(data_sp->GetBytes()); + if (src == nullptr) { + error.SetErrorStringWithFormat("NativeRegisterContextLinux_riscv64::%s " + "DataBuffer::GetBytes() returned a null " + "pointer", + __FUNCTION__); + return error; + } + ::memcpy(GetGPRBuffer(), src, GetRegisterInfoInterface().GetGPRSize()); + + error = WriteGPR(); + if (error.Fail()) + return error; + + src += GetRegisterInfoInterface().GetGPRSize(); + ::memcpy(GetFPRBuffer(), src, GetFPRSize()); + + error = WriteFPR(); + if (error.Fail()) + return error; + + return error; +} + +bool NativeRegisterContextLinux_riscv64::IsGPR(unsigned reg) const { + return GetRegisterInfo().GetRegisterSetFromRegisterIndex(reg) == + RegisterInfoPOSIX_riscv64::GPRegSet; +} + +bool NativeRegisterContextLinux_riscv64::IsFPR(unsigned reg) const { + return GetRegisterInfo().GetRegisterSetFromRegisterIndex(reg) == + RegisterInfoPOSIX_riscv64::FPRegSet; +} + +Status NativeRegisterContextLinux_riscv64::ReadGPR() { + Status error; + + if (m_gpr_is_valid) + return error; + + struct iovec ioVec; + ioVec.iov_base = GetGPRBuffer(); + ioVec.iov_len = GetGPRBufferSize(); + + error = ReadRegisterSet(&ioVec, GetGPRBufferSize(), NT_PRSTATUS); + + if (error.Success()) + m_gpr_is_valid = true; + + return error; +} + +Status NativeRegisterContextLinux_riscv64::WriteGPR() { + Status error = ReadGPR(); + if (error.Fail()) + return error; + + struct iovec ioVec; + ioVec.iov_base = GetGPRBuffer(); + ioVec.iov_len = GetGPRBufferSize(); + + m_gpr_is_valid = false; + + return WriteRegisterSet(&ioVec, GetGPRBufferSize(), NT_PRSTATUS); +} + +Status NativeRegisterContextLinux_riscv64::ReadFPR() { + Status error; + + if (m_fpu_is_valid) + return error; + + struct iovec ioVec; + ioVec.iov_base = GetFPRBuffer(); + ioVec.iov_len = GetFPRSize(); + + error = ReadRegisterSet(&ioVec, GetFPRSize(), NT_FPREGSET); + + if (error.Success()) + m_fpu_is_valid = true; + + return error; +} + +Status NativeRegisterContextLinux_riscv64::WriteFPR() { + Status error = ReadFPR(); + if (error.Fail()) + return error; + + struct iovec ioVec; + ioVec.iov_base = GetFPRBuffer(); + ioVec.iov_len = GetFPRSize(); + + m_fpu_is_valid = false; + + return WriteRegisterSet(&ioVec, GetFPRSize(), NT_FPREGSET); +} + +void NativeRegisterContextLinux_riscv64::InvalidateAllRegisters() { + m_gpr_is_valid = false; + m_fpu_is_valid = false; +} + +uint32_t NativeRegisterContextLinux_riscv64::CalculateFprOffset( + const RegisterInfo *reg_info) const { + return reg_info->byte_offset - GetGPRSize(); +} + +std::vector NativeRegisterContextLinux_riscv64::GetExpeditedRegisters( + ExpeditedRegs expType) const { + std::vector expedited_reg_nums = + NativeRegisterContext::GetExpeditedRegisters(expType); + + return expedited_reg_nums; +} + +#endif // defined (__riscv) && __riscv_xlen == 64 Index: lldb/source/Plugins/Process/Utility/CMakeLists.txt =================================================================== --- lldb/source/Plugins/Process/Utility/CMakeLists.txt +++ lldb/source/Plugins/Process/Utility/CMakeLists.txt @@ -41,6 +41,7 @@ RegisterContextPOSIX_mips64.cpp RegisterContextPOSIX_powerpc.cpp RegisterContextPOSIX_ppc64le.cpp + RegisterContextPOSIX_riscv64.cpp RegisterContextPOSIX_s390x.cpp RegisterContextPOSIX_x86.cpp RegisterContextThreadMemory.cpp @@ -49,6 +50,7 @@ RegisterInfoPOSIX_arm.cpp RegisterInfoPOSIX_arm64.cpp RegisterInfoPOSIX_ppc64le.cpp + RegisterInfoPOSIX_riscv64.cpp StopInfoMachException.cpp ThreadMemory.cpp Index: lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_riscv64.h =================================================================== --- /dev/null +++ lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_riscv64.h @@ -0,0 +1,62 @@ +//===-- RegisterContextPOSIX_riscv64.h --------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTPOSIX_RISCV64_H +#define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTPOSIX_RISCV64_H + +#include "RegisterInfoInterface.h" +#include "RegisterInfoPOSIX_riscv64.h" +#include "lldb/Target/RegisterContext.h" +#include "lldb/Utility/Log.h" + +class RegisterContextPOSIX_riscv64 : public lldb_private::RegisterContext { +public: + RegisterContextPOSIX_riscv64( + lldb_private::Thread &thread, + std::unique_ptr register_info); + + ~RegisterContextPOSIX_riscv64() override; + + void invalidate(); + + void InvalidateAllRegisters() override; + + size_t GetRegisterCount() override; + + virtual size_t GetGPRSize(); + + virtual unsigned GetRegisterSize(unsigned reg); + + virtual unsigned GetRegisterOffset(unsigned reg); + + const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override; + + size_t GetRegisterSetCount() override; + + const lldb_private::RegisterSet *GetRegisterSet(size_t set) override; + +protected: + std::unique_ptr m_register_info_up; + + virtual const lldb_private::RegisterInfo *GetRegisterInfo(); + + bool IsGPR(unsigned reg); + + bool IsFPR(unsigned reg); + + size_t GetFPRSize() { return sizeof(RegisterInfoPOSIX_riscv64::FPR); } + + uint32_t GetRegNumFCSR() const { return m_register_info_up->GetRegNumFCSR(); } + + virtual bool ReadGPR() = 0; + virtual bool ReadFPR() = 0; + virtual bool WriteGPR() = 0; + virtual bool WriteFPR() = 0; +}; + +#endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTPOSIX_RISCV64_H Index: lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_riscv64.cpp =================================================================== --- /dev/null +++ lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_riscv64.cpp @@ -0,0 +1,82 @@ +//===-- RegisterContextPOSIX_riscv64.cpp ------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "lldb/Target/Process.h" +#include "lldb/Target/Target.h" +#include "lldb/Target/Thread.h" +#include "lldb/Utility/DataBufferHeap.h" +#include "lldb/Utility/DataExtractor.h" +#include "lldb/Utility/Endian.h" +#include "lldb/Utility/RegisterValue.h" +#include "lldb/Utility/Scalar.h" +#include "llvm/Support/Compiler.h" + +#include "RegisterContextPOSIX_riscv64.h" + +using namespace lldb; +using namespace lldb_private; + +RegisterContextPOSIX_riscv64::RegisterContextPOSIX_riscv64( + lldb_private::Thread &thread, + std::unique_ptr register_info) + : lldb_private::RegisterContext(thread, 0), + m_register_info_up(std::move(register_info)) {} + +RegisterContextPOSIX_riscv64::~RegisterContextPOSIX_riscv64() = default; + +void RegisterContextPOSIX_riscv64::invalidate() {} + +void RegisterContextPOSIX_riscv64::InvalidateAllRegisters() {} + +size_t RegisterContextPOSIX_riscv64::GetRegisterCount() { + return m_register_info_up->GetRegisterCount(); +} + +size_t RegisterContextPOSIX_riscv64::GetGPRSize() { + return m_register_info_up->GetGPRSize(); +} + +unsigned RegisterContextPOSIX_riscv64::GetRegisterSize(unsigned int reg) { + return m_register_info_up->GetRegisterInfo()[reg].byte_size; +} + +unsigned RegisterContextPOSIX_riscv64::GetRegisterOffset(unsigned int reg) { + return m_register_info_up->GetRegisterInfo()[reg].byte_offset; +} + +const lldb_private::RegisterInfo * +RegisterContextPOSIX_riscv64::GetRegisterInfoAtIndex(size_t reg) { + if (reg < GetRegisterCount()) + return &GetRegisterInfo()[reg]; + + return nullptr; +} + +size_t RegisterContextPOSIX_riscv64::GetRegisterSetCount() { + return m_register_info_up->GetRegisterCount(); +} + +const lldb_private::RegisterSet * +RegisterContextPOSIX_riscv64::GetRegisterSet(size_t set) { + return m_register_info_up->GetRegisterSet(set); +} + +const lldb_private::RegisterInfo * +RegisterContextPOSIX_riscv64::GetRegisterInfo() { + return m_register_info_up->GetRegisterInfo(); +} + +bool RegisterContextPOSIX_riscv64::IsGPR(unsigned int reg) { + return m_register_info_up->GetRegisterSetFromRegisterIndex(reg) == + RegisterInfoPOSIX_riscv64::GPRegSet; +} + +bool RegisterContextPOSIX_riscv64::IsFPR(unsigned int reg) { + return m_register_info_up->GetRegisterSetFromRegisterIndex(reg) == + RegisterInfoPOSIX_riscv64::FPRegSet; +} Index: lldb/source/Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.h =================================================================== --- /dev/null +++ lldb/source/Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.h @@ -0,0 +1,59 @@ +//===-- RegisterInfoPOSIX_riscv64.h -----------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERINFOPOSIX_RISCV64_H +#define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERINFOPOSIX_RISCV64_H + +#include "RegisterInfoAndSetInterface.h" +#include "lldb/Target/RegisterContext.h" +#include "lldb/lldb-private.h" +#include + +class RegisterInfoPOSIX_riscv64 + : public lldb_private::RegisterInfoAndSetInterface { +public: + enum { GPRegSet = 0, FPRegSet }; + + struct GPR { + uint64_t x[32]; + uint64_t pc; + }; + + struct FPR { + uint64_t f[32]; + uint32_t fflags; + uint32_t frm; + uint32_t fcsr; + }; + + RegisterInfoPOSIX_riscv64(const lldb_private::ArchSpec &target_arch, + lldb_private::Flags flags); + + size_t GetGPRSize() const override; + + size_t GetFPRSize() const override; + + const lldb_private::RegisterInfo *GetRegisterInfo() const override; + + uint32_t GetRegisterCount() const override; + + const lldb_private::RegisterSet * + GetRegisterSet(size_t reg_set) const override; + + size_t GetRegisterSetCount() const override; + + size_t GetRegisterSetFromRegisterIndex(uint32_t reg_index) const override; + + uint32_t GetRegNumFCSR() const; + +private: + const lldb_private::RegisterInfo *m_register_info_p; + uint32_t m_register_info_count; +}; + +#endif Index: lldb/source/Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.cpp =================================================================== --- /dev/null +++ lldb/source/Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.cpp @@ -0,0 +1,152 @@ +//===-- RegisterInfoPOSIX_riscv64.cpp -------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===---------------------------------------------------------------------===// + +#include +#include +#include + +#include "lldb/lldb-defines.h" +#include "llvm/Support/Compiler.h" + +#include "RegisterInfoPOSIX_riscv64.h" + +#define GPR_OFFSET(idx) ((idx)*8) +#define GPR_OFFSET_NAME(reg) \ + (LLVM_EXTENSION offsetof(RegisterInfoPOSIX_riscv64::GPR, reg)) + +#define FPR_OFFSET(idx) ((idx)*8 + sizeof(RegisterInfoPOSIX_riscv64::GPR)) +#define FPR_OFFSET_NAME(reg) \ + (LLVM_EXTENSION offsetof(RegisterInfoPOSIX_riscv64::FPR, reg) + \ + sizeof(RegisterInfoPOSIX_riscv64::GPR)) + +#define REG_CONTEXT_SIZE \ + (sizeof(RegisterInfoPOSIX_riscv64::GPR) + \ + sizeof(RegisterInfoPOSIX_riscv64::FPR)) + +#define DECLARE_REGISTER_INFOS_RISCV64_STRUCT +#include "RegisterInfos_riscv64.h" +#undef DECLARE_REGISTER_INFOS_RISCV64_STRUCT + +static const lldb_private::RegisterInfo * +GetRegisterInfoPtr(const lldb_private::ArchSpec &target_arch) { + switch (target_arch.GetMachine()) { + case llvm::Triple::riscv64: + return g_register_infos_riscv64_le; + default: + assert(false && "Unhandled target architecture."); + return nullptr; + } +} + +// Number of register sets provided by this context. +enum { + k_num_gpr_registers = gpr_pc - gpr_x0 + 1, + k_num_fpr_registers = fpr_fcsr - fpr_f0 + 1, + k_num_register_sets = 2 +}; + +// RISC-V64 general purpose registers. +static const uint32_t g_gpr_regnums_riscv64[] = {gpr_x0, gpr_ra, + gpr_sp, gpr_x3, + gpr_x4, gpr_x5, + gpr_x6, gpr_x7, + gpr_fp, gpr_x9, + gpr_x10, gpr_x11, + gpr_x12, gpr_x13, + gpr_x14, gpr_x15, + gpr_x16, gpr_x17, + gpr_x18, gpr_x19, + gpr_x20, gpr_x21, + gpr_x22, gpr_x23, + gpr_x24, gpr_x25, + gpr_x26, gpr_x27, + gpr_x28, gpr_x29, + gpr_x30, gpr_x31, + gpr_pc, LLDB_INVALID_REGNUM}; + +static_assert(((sizeof g_gpr_regnums_riscv64 / + sizeof g_gpr_regnums_riscv64[0]) - + 1) == k_num_gpr_registers, + "g_gpr_regnums_riscv64 has wrong number of register infos"); + +// RISC-V64 floating point registers. +static const uint32_t g_fpr_regnums_riscv64[] = { + fpr_f0, fpr_f1, fpr_f2, fpr_f3, fpr_f4, fpr_f5, + fpr_f6, fpr_f7, fpr_f8, fpr_f9, fpr_f10, fpr_f11, + fpr_f12, fpr_f13, fpr_f14, fpr_f15, fpr_f16, fpr_f17, + fpr_f18, fpr_f19, fpr_f20, fpr_f21, fpr_f22, fpr_f23, + fpr_f24, fpr_f25, fpr_f26, fpr_f27, fpr_f28, fpr_f29, + fpr_f30, fpr_f31, fpr_fflags, fpr_frm, fpr_fcsr, LLDB_INVALID_REGNUM}; + +static_assert(((sizeof g_fpr_regnums_riscv64 / + sizeof g_fpr_regnums_riscv64[0]) - + 1) == k_num_fpr_registers, + "g_fpr_regnums_riscv64 has wrong number of register infos"); + +// Register sets for RISC-V64. +static const lldb_private::RegisterSet g_reg_sets_riscv64[k_num_register_sets] = + {{"General Purpose Registers", "gpr", k_num_gpr_registers, + g_gpr_regnums_riscv64}, + {"Floating Point Registers", "fpr", k_num_fpr_registers, + g_fpr_regnums_riscv64}}; + +static uint32_t +GetRegisterInfoCount(const lldb_private::ArchSpec &target_arch) { + switch (target_arch.GetMachine()) { + case llvm::Triple::riscv64: + return static_cast(sizeof(g_register_infos_riscv64_le) / + sizeof(g_register_infos_riscv64_le[0])); + default: + assert(false && "Unhandled target architecture."); + return 0; + } +} + +RegisterInfoPOSIX_riscv64::RegisterInfoPOSIX_riscv64( + const lldb_private::ArchSpec &target_arch, lldb_private::Flags flags) + : lldb_private::RegisterInfoAndSetInterface(target_arch), + m_register_info_p(GetRegisterInfoPtr(target_arch)), + m_register_info_count(GetRegisterInfoCount(target_arch)) {} + +uint32_t RegisterInfoPOSIX_riscv64::GetRegisterCount() const { + return k_num_gpr_registers; +} + +size_t RegisterInfoPOSIX_riscv64::GetGPRSize() const { + return sizeof(struct RegisterInfoPOSIX_riscv64::GPR); +} + +size_t RegisterInfoPOSIX_riscv64::GetFPRSize() const { + return sizeof(struct RegisterInfoPOSIX_riscv64::FPR); +} + +const lldb_private::RegisterInfo * +RegisterInfoPOSIX_riscv64::GetRegisterInfo() const { + return m_register_info_p; +} + +size_t RegisterInfoPOSIX_riscv64::GetRegisterSetCount() const { + return k_num_register_sets - 1; +} + +size_t RegisterInfoPOSIX_riscv64::GetRegisterSetFromRegisterIndex( + uint32_t reg_index) const { + if (reg_index <= gpr_pc) + return GPRegSet; + if (reg_index >= fpr_f0 && reg_index <= fpr_fcsr) + return FPRegSet; + return LLDB_INVALID_REGNUM; +} + +const lldb_private::RegisterSet * +RegisterInfoPOSIX_riscv64::GetRegisterSet(size_t set_index) const { + if (set_index < GetRegisterSetCount()) + return &g_reg_sets_riscv64[set_index]; + return nullptr; +} +uint32_t RegisterInfoPOSIX_riscv64::GetRegNumFCSR() const { return fpr_fcsr; } Index: lldb/source/Plugins/Process/Utility/RegisterInfos_riscv64.h =================================================================== --- /dev/null +++ lldb/source/Plugins/Process/Utility/RegisterInfos_riscv64.h @@ -0,0 +1,238 @@ +//===-- RegisterInfos_riscv64.h ---------------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifdef DECLARE_REGISTER_INFOS_RISCV64_STRUCT + +#include + +#include "lldb/lldb-defines.h" +#include "lldb/lldb-enumerations.h" +#include "lldb/lldb-private.h" + +#ifndef GPR_OFFSET +#error GPR_OFFSET must be defined before including this header file +#endif + +#ifndef GPR_OFFSET_NAME +#error GPR_OFFSET_NAME must be defined before including this header file +#endif + +#ifndef FPR_OFFSET +#error FPR_OFFSET must be defined before including this header file +#endif + +#ifndef FPR_OFFSET_NAME +#error FPR_OFFSET_NAME must be defined before including this header file +#endif + +enum { + gpr_x0 = 0, + gpr_x1, + gpr_x2, + gpr_x3, + gpr_x4, + gpr_x5, + gpr_x6, + gpr_x7, + gpr_x8, + gpr_x9, + gpr_x10, + gpr_x11, + gpr_x12, + gpr_x13, + gpr_x14, + gpr_x15, + gpr_x16, + gpr_x17, + gpr_x18, + gpr_x19, + gpr_x20, + gpr_x21, + gpr_x22, + gpr_x23, + gpr_x24, + gpr_x25, + gpr_x26, + gpr_x27, + gpr_x28, + gpr_x29, + gpr_x30, + gpr_x31, + gpr_ra = gpr_x1, + gpr_sp = gpr_x2, + gpr_fp = gpr_x8, + + gpr_pc = 32, + + fpr_f0 = 33, + fpr_f1, + fpr_f2, + fpr_f3, + fpr_f4, + fpr_f5, + fpr_f6, + fpr_f7, + fpr_f8, + fpr_f9, + fpr_f10, + fpr_f11, + fpr_f12, + fpr_f13, + fpr_f14, + fpr_f15, + fpr_f16, + fpr_f17, + fpr_f18, + fpr_f19, + fpr_f20, + fpr_f21, + fpr_f22, + fpr_f23, + fpr_f24, + fpr_f25, + fpr_f26, + fpr_f27, + fpr_f28, + fpr_f29, + fpr_f30, + fpr_f31, + + fpr_fflags, + fpr_frm, + fpr_fcsr, + + k_num_registers +}; + +// Generates register kinds array with DWARF, EH frame and generic kind +#define MISC_KIND(reg, type, generic_kind) \ + { reg, reg, generic_kind, LLDB_INVALID_REGNUM, reg } + +// Generates register kinds array for registers with only lldb kind +#define LLDB_KIND(lldb_kind) \ + { \ + LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \ + LLDB_INVALID_REGNUM, lldb_kind \ + } + +// Generates register kinds array for vector registers +#define GPR64_KIND(reg, generic_kind) MISC_KIND(reg, gpr, generic_kind) + +// FPR register kinds array for vector registers +#define FPR64_KIND(reg, generic_kind) MISC_KIND(reg, fpr, generic_kind) + +#define MISC_FPR_KIND(lldb_kind) LLDB_KIND(lldb_kind) + +// Defines a 64-bit general purpose register +#define DEFINE_GPR64(reg, generic_kind) \ + { \ +#reg, nullptr, 8, GPR_OFFSET(gpr_##reg), lldb::eEncodingUint, \ + lldb::eFormatHex, GPR64_KIND(gpr_##reg, generic_kind), nullptr, \ + nullptr \ + } + +// Defines a 64-bit general purpose register +#define DEFINE_GPR64_ALT(reg, alt, generic_kind) \ + { \ +#reg, #alt, 8, GPR_OFFSET(gpr_##reg), lldb::eEncodingUint, \ + lldb::eFormatHex, GPR64_KIND(gpr_##reg, generic_kind), nullptr, \ + nullptr \ + } + +#define DEFINE_FPR64(reg, generic_kind) \ + { \ +#reg, nullptr, 8, FPR_OFFSET(fpr_##reg - fpr_f0), lldb::eEncodingUint, \ + lldb::eFormatHex, FPR64_KIND(fpr_##reg, generic_kind), nullptr, \ + nullptr \ + } + +// Defines miscellaneous status and control registers like fcsr +#define DEFINE_MISC_REGS(reg, size, TYPE, lldb_kind) \ + { \ +#reg, nullptr, size, TYPE##_OFFSET_NAME(reg), lldb::eEncodingUint, \ + lldb::eFormatHex, MISC_##TYPE##_KIND(lldb_kind), nullptr, nullptr \ + } + +static lldb_private::RegisterInfo g_register_infos_riscv64_le[] = { + // DEFINE_GPR64(name, GENERIC KIND) + DEFINE_GPR64(x0, LLDB_INVALID_REGNUM), + DEFINE_GPR64_ALT(ra, x1, LLDB_REGNUM_GENERIC_RA), + DEFINE_GPR64_ALT(sp, x2, LLDB_REGNUM_GENERIC_SP), + DEFINE_GPR64(x3, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x4, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x5, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x6, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x7, LLDB_INVALID_REGNUM), + DEFINE_GPR64_ALT(fp, x8, LLDB_REGNUM_GENERIC_FP), + DEFINE_GPR64(x9, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x10, LLDB_REGNUM_GENERIC_ARG1), + DEFINE_GPR64(x11, LLDB_REGNUM_GENERIC_ARG2), + DEFINE_GPR64(x12, LLDB_REGNUM_GENERIC_ARG3), + DEFINE_GPR64(x13, LLDB_REGNUM_GENERIC_ARG4), + DEFINE_GPR64(x14, LLDB_REGNUM_GENERIC_ARG5), + DEFINE_GPR64(x15, LLDB_REGNUM_GENERIC_ARG6), + DEFINE_GPR64(x16, LLDB_REGNUM_GENERIC_ARG7), + DEFINE_GPR64(x17, LLDB_REGNUM_GENERIC_ARG8), + DEFINE_GPR64(x18, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x19, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x20, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x21, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x22, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x23, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x24, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x25, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x26, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x27, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x28, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x29, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x30, LLDB_INVALID_REGNUM), + DEFINE_GPR64(x31, LLDB_INVALID_REGNUM), + + DEFINE_GPR64(pc, LLDB_REGNUM_GENERIC_PC), + + DEFINE_FPR64(f0, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f1, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f2, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f3, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f4, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f5, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f6, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f7, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f8, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f9, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f10, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f11, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f12, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f13, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f14, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f15, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f16, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f17, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f18, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f19, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f20, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f21, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f22, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f23, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f24, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f25, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f26, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f27, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f28, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f29, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f30, LLDB_INVALID_REGNUM), + DEFINE_FPR64(f31, LLDB_INVALID_REGNUM), + + DEFINE_MISC_REGS(fflags, 4, FPR, fpr_fflags), + DEFINE_MISC_REGS(frm, 4, FPR, fpr_frm), + DEFINE_MISC_REGS(fcsr, 4, FPR, fpr_fcsr), + + // clang-format on +}; + +#endif // DECLARE_REGISTER_INFOS_RISCV64_STRUCT