| //===-- RegisterContextWindows_x64.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/Host/windows/HostThreadWindows.h" |
| #include "lldb/Host/windows/windows.h" |
| #include "lldb/Utility/RegisterValue.h" |
| #include "lldb/Utility/Status.h" |
| #include "lldb/lldb-private-types.h" |
| |
| #include "RegisterContextWindows_x64.h" |
| #include "Plugins/Process/Utility/RegisterContext_x86.h" |
| #include "TargetThreadWindows.h" |
| #include "Plugins/Process/Utility/lldb-x86-register-enums.h" |
| |
| #include "llvm/ADT/STLExtras.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| #define DEFINE_GPR(reg, alt) #reg, alt, 8, 0, eEncodingUint, eFormatHexUppercase |
| #define DEFINE_GPR_BIN(reg, alt) #reg, alt, 8, 0, eEncodingUint, eFormatBinary |
| #define DEFINE_FPU_XMM(reg) \ |
| #reg, NULL, 16, 0, eEncodingUint, eFormatVectorOfUInt64, \ |
| {dwarf_##reg##_x86_64, dwarf_##reg##_x86_64, LLDB_INVALID_REGNUM, \ |
| LLDB_INVALID_REGNUM, lldb_##reg##_x86_64}, \ |
| nullptr, nullptr, nullptr, 0 |
| |
| namespace { |
| |
| // This enum defines the layout of the global RegisterInfo array. This is |
| // necessary because lldb register sets are defined in terms of indices into |
| // the register array. As such, the order of RegisterInfos defined in global |
| // registers array must match the order defined here. When defining the |
| // register set layouts, these values can appear in an arbitrary order, and |
| // that determines the order that register values are displayed in a dump. |
| enum RegisterIndex { |
| eRegisterIndexRax, |
| eRegisterIndexRbx, |
| eRegisterIndexRcx, |
| eRegisterIndexRdx, |
| eRegisterIndexRdi, |
| eRegisterIndexRsi, |
| eRegisterIndexRbp, |
| eRegisterIndexRsp, |
| eRegisterIndexR8, |
| eRegisterIndexR9, |
| eRegisterIndexR10, |
| eRegisterIndexR11, |
| eRegisterIndexR12, |
| eRegisterIndexR13, |
| eRegisterIndexR14, |
| eRegisterIndexR15, |
| eRegisterIndexRip, |
| eRegisterIndexRflags, |
| |
| eRegisterIndexXmm0, |
| eRegisterIndexXmm1, |
| eRegisterIndexXmm2, |
| eRegisterIndexXmm3, |
| eRegisterIndexXmm4, |
| eRegisterIndexXmm5, |
| eRegisterIndexXmm6, |
| eRegisterIndexXmm7, |
| eRegisterIndexXmm8, |
| eRegisterIndexXmm9, |
| eRegisterIndexXmm10, |
| eRegisterIndexXmm11, |
| eRegisterIndexXmm12, |
| eRegisterIndexXmm13, |
| eRegisterIndexXmm14, |
| eRegisterIndexXmm15 |
| }; |
| |
| // Array of all register information supported by Windows x86 |
| RegisterInfo g_register_infos[] = { |
| // Macro auto defines most stuff eh_frame DWARF |
| // GENERIC |
| // GDB LLDB VALUE REGS INVALIDATE REGS |
| // ================================ ========================= |
| // ====================== ========================= |
| // =================== ================= ========== =============== |
| {DEFINE_GPR(rax, nullptr), |
| {dwarf_rax_x86_64, dwarf_rax_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_rax_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(rbx, nullptr), |
| {dwarf_rbx_x86_64, dwarf_rbx_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_rbx_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(rcx, nullptr), |
| {dwarf_rcx_x86_64, dwarf_rcx_x86_64, LLDB_REGNUM_GENERIC_ARG1, |
| LLDB_INVALID_REGNUM, lldb_rcx_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(rdx, nullptr), |
| {dwarf_rdx_x86_64, dwarf_rdx_x86_64, LLDB_REGNUM_GENERIC_ARG2, |
| LLDB_INVALID_REGNUM, lldb_rdx_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(rdi, nullptr), |
| {dwarf_rdi_x86_64, dwarf_rdi_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_rdi_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(rsi, nullptr), |
| {dwarf_rsi_x86_64, dwarf_rsi_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_rsi_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(rbp, "fp"), |
| {dwarf_rbp_x86_64, dwarf_rbp_x86_64, LLDB_REGNUM_GENERIC_FP, |
| LLDB_INVALID_REGNUM, lldb_rbp_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(rsp, "sp"), |
| {dwarf_rsp_x86_64, dwarf_rsp_x86_64, LLDB_REGNUM_GENERIC_SP, |
| LLDB_INVALID_REGNUM, lldb_rsp_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(r8, nullptr), |
| {dwarf_r8_x86_64, dwarf_r8_x86_64, LLDB_REGNUM_GENERIC_ARG3, |
| LLDB_INVALID_REGNUM, lldb_r8_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(r9, nullptr), |
| {dwarf_r9_x86_64, dwarf_r9_x86_64, LLDB_REGNUM_GENERIC_ARG4, |
| LLDB_INVALID_REGNUM, lldb_r9_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(r10, nullptr), |
| {dwarf_r10_x86_64, dwarf_r10_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_r10_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(r11, nullptr), |
| {dwarf_r11_x86_64, dwarf_r11_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_r11_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(r12, nullptr), |
| {dwarf_r12_x86_64, dwarf_r12_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_r12_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(r13, nullptr), |
| {dwarf_r13_x86_64, dwarf_r13_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_r13_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(r14, nullptr), |
| {dwarf_r14_x86_64, dwarf_r14_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_r14_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(r15, nullptr), |
| {dwarf_r15_x86_64, dwarf_r15_x86_64, LLDB_INVALID_REGNUM, |
| LLDB_INVALID_REGNUM, lldb_r15_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR(rip, "pc"), |
| {dwarf_rip_x86_64, dwarf_rip_x86_64, LLDB_REGNUM_GENERIC_PC, |
| LLDB_INVALID_REGNUM, lldb_rip_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_GPR_BIN(eflags, "flags"), |
| {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_REGNUM_GENERIC_FLAGS, |
| LLDB_INVALID_REGNUM, lldb_rflags_x86_64}, |
| nullptr, |
| nullptr, |
| nullptr, |
| 0}, |
| {DEFINE_FPU_XMM(xmm0)}, |
| {DEFINE_FPU_XMM(xmm1)}, |
| {DEFINE_FPU_XMM(xmm2)}, |
| {DEFINE_FPU_XMM(xmm3)}, |
| {DEFINE_FPU_XMM(xmm4)}, |
| {DEFINE_FPU_XMM(xmm5)}, |
| {DEFINE_FPU_XMM(xmm6)}, |
| {DEFINE_FPU_XMM(xmm7)}, |
| {DEFINE_FPU_XMM(xmm8)}, |
| {DEFINE_FPU_XMM(xmm9)}, |
| {DEFINE_FPU_XMM(xmm10)}, |
| {DEFINE_FPU_XMM(xmm11)}, |
| {DEFINE_FPU_XMM(xmm12)}, |
| {DEFINE_FPU_XMM(xmm13)}, |
| {DEFINE_FPU_XMM(xmm14)}, |
| {DEFINE_FPU_XMM(xmm15)} |
| }; |
| |
| static size_t k_num_register_infos = llvm::array_lengthof(g_register_infos); |
| |
| // Array of lldb register numbers used to define the set of all General Purpose |
| // Registers |
| uint32_t g_gpr_reg_indices[] = { |
| eRegisterIndexRax, eRegisterIndexRbx, eRegisterIndexRcx, |
| eRegisterIndexRdx, eRegisterIndexRdi, eRegisterIndexRsi, |
| eRegisterIndexRbp, eRegisterIndexRsp, eRegisterIndexR8, |
| eRegisterIndexR9, eRegisterIndexR10, eRegisterIndexR11, |
| eRegisterIndexR12, eRegisterIndexR13, eRegisterIndexR14, |
| eRegisterIndexR15, eRegisterIndexRip, eRegisterIndexRflags}; |
| |
| uint32_t g_fpu_reg_indices[] = { |
| eRegisterIndexXmm0, eRegisterIndexXmm1, eRegisterIndexXmm2, |
| eRegisterIndexXmm3, eRegisterIndexXmm4, eRegisterIndexXmm5, |
| eRegisterIndexXmm6, eRegisterIndexXmm7, eRegisterIndexXmm8, |
| eRegisterIndexXmm9, eRegisterIndexXmm10, eRegisterIndexXmm11, |
| eRegisterIndexXmm12, eRegisterIndexXmm13, eRegisterIndexXmm14, |
| eRegisterIndexXmm15 |
| }; |
| |
| RegisterSet g_register_sets[] = { |
| {"General Purpose Registers", "gpr", |
| llvm::array_lengthof(g_gpr_reg_indices), g_gpr_reg_indices}, |
| {"Floating Point Registers", "fpu", |
| llvm::array_lengthof(g_fpu_reg_indices), g_fpu_reg_indices}}; |
| } |
| |
| // Constructors and Destructors |
| RegisterContextWindows_x64::RegisterContextWindows_x64( |
| Thread &thread, uint32_t concrete_frame_idx) |
| : RegisterContextWindows(thread, concrete_frame_idx) {} |
| |
| RegisterContextWindows_x64::~RegisterContextWindows_x64() {} |
| |
| size_t RegisterContextWindows_x64::GetRegisterCount() { |
| return llvm::array_lengthof(g_register_infos); |
| } |
| |
| const RegisterInfo * |
| RegisterContextWindows_x64::GetRegisterInfoAtIndex(size_t reg) { |
| if (reg < k_num_register_infos) |
| return &g_register_infos[reg]; |
| return NULL; |
| } |
| |
| size_t RegisterContextWindows_x64::GetRegisterSetCount() { |
| return llvm::array_lengthof(g_register_sets); |
| } |
| |
| const RegisterSet *RegisterContextWindows_x64::GetRegisterSet(size_t reg_set) { |
| return &g_register_sets[reg_set]; |
| } |
| |
| bool RegisterContextWindows_x64::ReadRegister(const RegisterInfo *reg_info, |
| RegisterValue ®_value) { |
| if (!CacheAllRegisterValues()) |
| return false; |
| |
| if (reg_info == nullptr) |
| return false; |
| |
| const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; |
| |
| switch (reg) { |
| case lldb_rax_x86_64: |
| reg_value.SetUInt64(m_context.Rax); |
| break; |
| case lldb_rbx_x86_64: |
| reg_value.SetUInt64(m_context.Rbx); |
| break; |
| case lldb_rcx_x86_64: |
| reg_value.SetUInt64(m_context.Rcx); |
| break; |
| case lldb_rdx_x86_64: |
| reg_value.SetUInt64(m_context.Rdx); |
| break; |
| case lldb_rdi_x86_64: |
| reg_value.SetUInt64(m_context.Rdi); |
| break; |
| case lldb_rsi_x86_64: |
| reg_value.SetUInt64(m_context.Rsi); |
| break; |
| case lldb_r8_x86_64: |
| reg_value.SetUInt64(m_context.R8); |
| break; |
| case lldb_r9_x86_64: |
| reg_value.SetUInt64(m_context.R9); |
| break; |
| case lldb_r10_x86_64: |
| reg_value.SetUInt64(m_context.R10); |
| break; |
| case lldb_r11_x86_64: |
| reg_value.SetUInt64(m_context.R11); |
| break; |
| case lldb_r12_x86_64: |
| reg_value.SetUInt64(m_context.R12); |
| break; |
| case lldb_r13_x86_64: |
| reg_value.SetUInt64(m_context.R13); |
| break; |
| case lldb_r14_x86_64: |
| reg_value.SetUInt64(m_context.R14); |
| break; |
| case lldb_r15_x86_64: |
| reg_value.SetUInt64(m_context.R15); |
| break; |
| case lldb_rbp_x86_64: |
| reg_value.SetUInt64(m_context.Rbp); |
| break; |
| case lldb_rsp_x86_64: |
| reg_value.SetUInt64(m_context.Rsp); |
| break; |
| case lldb_rip_x86_64: |
| reg_value.SetUInt64(m_context.Rip); |
| break; |
| case lldb_rflags_x86_64: |
| reg_value.SetUInt64(m_context.EFlags); |
| break; |
| case lldb_xmm0_x86_64: |
| reg_value.SetBytes(&m_context.Xmm0, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm1_x86_64: |
| reg_value.SetBytes(&m_context.Xmm1, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm2_x86_64: |
| reg_value.SetBytes(&m_context.Xmm2, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm3_x86_64: |
| reg_value.SetBytes(&m_context.Xmm3, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm4_x86_64: |
| reg_value.SetBytes(&m_context.Xmm4, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm5_x86_64: |
| reg_value.SetBytes(&m_context.Xmm5, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm6_x86_64: |
| reg_value.SetBytes(&m_context.Xmm6, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm7_x86_64: |
| reg_value.SetBytes(&m_context.Xmm7, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm8_x86_64: |
| reg_value.SetBytes(&m_context.Xmm8, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm9_x86_64: |
| reg_value.SetBytes(&m_context.Xmm9, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm10_x86_64: |
| reg_value.SetBytes(&m_context.Xmm10, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm11_x86_64: |
| reg_value.SetBytes(&m_context.Xmm11, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm12_x86_64: |
| reg_value.SetBytes(&m_context.Xmm12, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm13_x86_64: |
| reg_value.SetBytes(&m_context.Xmm13, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm14_x86_64: |
| reg_value.SetBytes(&m_context.Xmm14, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| case lldb_xmm15_x86_64: |
| reg_value.SetBytes(&m_context.Xmm15, |
| reg_info->byte_size, endian::InlHostByteOrder()); |
| break; |
| } |
| return true; |
| } |
| |
| bool RegisterContextWindows_x64::WriteRegister(const RegisterInfo *reg_info, |
| const RegisterValue ®_value) { |
| // Since we cannot only write a single register value to the inferior, we |
| // need to make sure our cached copy of the register values are fresh. |
| // Otherwise when writing EAX, for example, we may also overwrite some other |
| // register with a stale value. |
| if (!CacheAllRegisterValues()) |
| return false; |
| |
| switch (reg_info->kinds[eRegisterKindLLDB]) { |
| case lldb_rax_x86_64: |
| m_context.Rax = reg_value.GetAsUInt64(); |
| break; |
| case lldb_rbx_x86_64: |
| m_context.Rbx = reg_value.GetAsUInt64(); |
| break; |
| case lldb_rcx_x86_64: |
| m_context.Rcx = reg_value.GetAsUInt64(); |
| break; |
| case lldb_rdx_x86_64: |
| m_context.Rdx = reg_value.GetAsUInt64(); |
| break; |
| case lldb_rdi_x86_64: |
| m_context.Rdi = reg_value.GetAsUInt64(); |
| break; |
| case lldb_rsi_x86_64: |
| m_context.Rsi = reg_value.GetAsUInt64(); |
| break; |
| case lldb_r8_x86_64: |
| m_context.R8 = reg_value.GetAsUInt64(); |
| break; |
| case lldb_r9_x86_64: |
| m_context.R9 = reg_value.GetAsUInt64(); |
| break; |
| case lldb_r10_x86_64: |
| m_context.R10 = reg_value.GetAsUInt64(); |
| break; |
| case lldb_r11_x86_64: |
| m_context.R11 = reg_value.GetAsUInt64(); |
| break; |
| case lldb_r12_x86_64: |
| m_context.R12 = reg_value.GetAsUInt64(); |
| break; |
| case lldb_r13_x86_64: |
| m_context.R13 = reg_value.GetAsUInt64(); |
| break; |
| case lldb_r14_x86_64: |
| m_context.R14 = reg_value.GetAsUInt64(); |
| break; |
| case lldb_r15_x86_64: |
| m_context.R15 = reg_value.GetAsUInt64(); |
| break; |
| case lldb_rbp_x86_64: |
| m_context.Rbp = reg_value.GetAsUInt64(); |
| break; |
| case lldb_rsp_x86_64: |
| m_context.Rsp = reg_value.GetAsUInt64(); |
| break; |
| case lldb_rip_x86_64: |
| m_context.Rip = reg_value.GetAsUInt64(); |
| break; |
| case lldb_rflags_x86_64: |
| m_context.EFlags = reg_value.GetAsUInt64(); |
| break; |
| case lldb_xmm0_x86_64: |
| memcpy(&m_context.Xmm0, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm1_x86_64: |
| memcpy(&m_context.Xmm1, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm2_x86_64: |
| memcpy(&m_context.Xmm2, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm3_x86_64: |
| memcpy(&m_context.Xmm3, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm4_x86_64: |
| memcpy(&m_context.Xmm4, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm5_x86_64: |
| memcpy(&m_context.Xmm5, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm6_x86_64: |
| memcpy(&m_context.Xmm6, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm7_x86_64: |
| memcpy(&m_context.Xmm7, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm8_x86_64: |
| memcpy(&m_context.Xmm8, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm9_x86_64: |
| memcpy(&m_context.Xmm9, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm10_x86_64: |
| memcpy(&m_context.Xmm10, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm11_x86_64: |
| memcpy(&m_context.Xmm11, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm12_x86_64: |
| memcpy(&m_context.Xmm12, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm13_x86_64: |
| memcpy(&m_context.Xmm13, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm14_x86_64: |
| memcpy(&m_context.Xmm14, reg_value.GetBytes(), 16); |
| break; |
| case lldb_xmm15_x86_64: |
| memcpy(&m_context.Xmm15, reg_value.GetBytes(), 16); |
| break; |
| } |
| |
| // Physically update the registers in the target process. |
| TargetThreadWindows &wthread = static_cast<TargetThreadWindows &>(m_thread); |
| return ::SetThreadContext( |
| wthread.GetHostThread().GetNativeThread().GetSystemHandle(), &m_context); |
| } |
