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| //===-- NativeRegisterContextLinux_x86_64.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(__i386__) || defined(__x86_64__)
#ifndef lldb_NativeRegisterContextLinux_x86_64_h
#define lldb_NativeRegisterContextLinux_x86_64_h
#include "Plugins/Process/Linux/NativeRegisterContextLinux.h"
#include "Plugins/Process/Utility/RegisterContext_x86.h"
#include "Plugins/Process/Utility/lldb-x86-register-enums.h"
#include <sys/uio.h>
namespace lldb_private {
namespace process_linux {
class NativeProcessLinux;
class NativeRegisterContextLinux_x86_64 : public NativeRegisterContextLinux {
public:
NativeRegisterContextLinux_x86_64(const ArchSpec &target_arch,
NativeThreadProtocol &native_thread);
uint32_t GetRegisterSetCount() const override;
const RegisterSet *GetRegisterSet(uint32_t set_index) const override;
uint32_t GetUserRegisterCount() const override;
Status ReadRegister(const RegisterInfo *reg_info,
RegisterValue ®_value) override;
Status WriteRegister(const RegisterInfo *reg_info,
const RegisterValue ®_value) override;
Status ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
Status IsWatchpointHit(uint32_t wp_index, bool &is_hit) override;
Status GetWatchpointHitIndex(uint32_t &wp_index,
lldb::addr_t trap_addr) override;
Status IsWatchpointVacant(uint32_t wp_index, bool &is_vacant) override;
bool ClearHardwareWatchpoint(uint32_t wp_index) override;
Status ClearAllHardwareWatchpoints() override;
Status SetHardwareWatchpointWithIndex(lldb::addr_t addr, size_t size,
uint32_t watch_flags,
uint32_t wp_index);
uint32_t SetHardwareWatchpoint(lldb::addr_t addr, size_t size,
uint32_t watch_flags) override;
lldb::addr_t GetWatchpointAddress(uint32_t wp_index) override;
uint32_t NumSupportedHardwareWatchpoints() override;
protected:
void *GetGPRBuffer() override { return &m_gpr_x86_64; }
void *GetFPRBuffer() override;
size_t GetFPRSize() override;
Status ReadFPR() override;
Status WriteFPR() override;
private:
// Private member types.
enum class XStateType { Invalid, FXSAVE, XSAVE };
enum class RegSet { gpr, fpu, avx, mpx };
// Info about register ranges.
struct RegInfo {
uint32_t num_registers;
uint32_t num_gpr_registers;
uint32_t num_fpr_registers;
uint32_t num_avx_registers;
uint32_t num_mpx_registers;
uint32_t last_gpr;
uint32_t first_fpr;
uint32_t last_fpr;
uint32_t first_st;
uint32_t last_st;
uint32_t first_mm;
uint32_t last_mm;
uint32_t first_xmm;
uint32_t last_xmm;
uint32_t first_ymm;
uint32_t last_ymm;
uint32_t first_mpxr;
uint32_t last_mpxr;
uint32_t first_mpxc;
uint32_t last_mpxc;
uint32_t first_dr;
uint32_t gpr_flags;
};
// Private member variables.
mutable XStateType m_xstate_type;
std::unique_ptr<FPR, llvm::FreeDeleter>
m_xstate; // Extended States Area, named FPR for historical reasons.
struct iovec m_iovec;
YMM m_ymm_set;
MPX m_mpx_set;
RegInfo m_reg_info;
uint64_t m_gpr_x86_64[k_num_gpr_registers_x86_64];
uint32_t m_fctrl_offset_in_userarea;
// Private member methods.
bool IsCPUFeatureAvailable(RegSet feature_code) const;
bool IsRegisterSetAvailable(uint32_t set_index) const;
bool IsGPR(uint32_t reg_index) const;
bool IsFPR(uint32_t reg_index) const;
bool CopyXSTATEtoYMM(uint32_t reg_index, lldb::ByteOrder byte_order);
bool CopyYMMtoXSTATE(uint32_t reg, lldb::ByteOrder byte_order);
bool IsAVX(uint32_t reg_index) const;
bool CopyXSTATEtoMPX(uint32_t reg);
bool CopyMPXtoXSTATE(uint32_t reg);
bool IsMPX(uint32_t reg_index) const;
void UpdateXSTATEforWrite(uint32_t reg_index);
};
} // namespace process_linux
} // namespace lldb_private
#endif // #ifndef lldb_NativeRegisterContextLinux_x86_64_h
#endif // defined(__i386__) || defined(__x86_64__)
|