contrib/llvm-project/lldb/source/Plugins/Process/Utility/RegisterContextWindows_x86_64.cpp

   1 //===-- RegisterContextWindows_x86_64.cpp -----------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "RegisterContextWindows_x86_64.h"
  10 #include "RegisterContext_x86.h"
  11 #include "lldb-x86-register-enums.h"
  12
  13 #include <vector>
  14
  15 using namespace lldb_private;
  16 using namespace lldb;
  17
  18 namespace {
  19 typedef struct _GPR {
  20   uint64_t rax;
  21   uint64_t rcx;
  22   uint64_t rdx;
  23   uint64_t rbx;
  24   uint64_t rsp;
  25   uint64_t rbp;
  26   uint64_t rsi;
  27   uint64_t rdi;
  28   uint64_t r8;
  29   uint64_t r9;
  30   uint64_t r10;
  31   uint64_t r11;
  32   uint64_t r12;
  33   uint64_t r13;
  34   uint64_t r14;
  35   uint64_t r15;
  36   uint64_t rip;
  37   uint64_t rflags;
  38   uint16_t cs;
  39   uint16_t fs;
  40   uint16_t gs;
  41   uint16_t ss;
  42   uint16_t ds;
  43   uint16_t es;
  44 } GPR;
  45
  46 #define GPR_OFFSET(regname) (LLVM_EXTENSION offsetof(GPR, regname))
  47 #define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4)                       \
  48   {                                                                            \
  49 #reg, alt, sizeof(((GPR *)nullptr)->reg), GPR_OFFSET(reg), eEncodingUint,  \
  50         eFormatHex,                                                            \
  51         {kind1, kind2, kind3, kind4, lldb_##reg##_x86_64 }, nullptr, nullptr,  \
  52          nullptr, 0                                                            \
  53   }
  54
  55 typedef struct _FPReg {
  56   XMMReg xmm0;
  57   XMMReg xmm1;
  58   XMMReg xmm2;
  59   XMMReg xmm3;
  60   XMMReg xmm4;
  61   XMMReg xmm5;
  62   XMMReg xmm6;
  63   XMMReg xmm7;
  64   XMMReg xmm8;
  65   XMMReg xmm9;
  66   XMMReg xmm10;
  67   XMMReg xmm11;
  68   XMMReg xmm12;
  69   XMMReg xmm13;
  70   XMMReg xmm14;
  71   XMMReg xmm15;
  72 } FPReg;
  73
  74 #define FPR_OFFSET(regname)                                                    \
  75   (sizeof(GPR) + LLVM_EXTENSION offsetof(FPReg, regname))
  76
  77 #define DEFINE_XMM(reg)                                                        \
  78   {                                                                            \
  79 #reg, NULL, sizeof(((FPReg *)nullptr)->reg), FPR_OFFSET(reg),              \
  80         eEncodingUint, eFormatVectorOfUInt64,                                  \
  81         {dwarf_##reg##_x86_64, dwarf_##reg##_x86_64, LLDB_INVALID_REGNUM,      \
  82          LLDB_INVALID_REGNUM, lldb_##reg##_x86_64 },                           \
  83          nullptr, nullptr, nullptr, 0                                          \
  84   }
  85
  86 // clang-format off
  87 static RegisterInfo g_register_infos_x86_64[] = {
  88 // General purpose registers     EH_Frame              DWARF                 Generic                     Process Plugin
  89 //  ===========================  ==================    ================      =========================   ====================
  90     DEFINE_GPR(rax,    nullptr,  dwarf_rax_x86_64,     dwarf_rax_x86_64,     LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
  91     DEFINE_GPR(rbx,    nullptr,  dwarf_rbx_x86_64,     dwarf_rbx_x86_64,     LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
  92     DEFINE_GPR(rcx,    "arg4",   dwarf_rcx_x86_64,     dwarf_rcx_x86_64,     LLDB_REGNUM_GENERIC_ARG4,   LLDB_INVALID_REGNUM),
  93     DEFINE_GPR(rdx,    "arg3",   dwarf_rdx_x86_64,     dwarf_rdx_x86_64,     LLDB_REGNUM_GENERIC_ARG3,   LLDB_INVALID_REGNUM),
  94     DEFINE_GPR(rdi,    "arg1",   dwarf_rdi_x86_64,     dwarf_rdi_x86_64,     LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM),
  95     DEFINE_GPR(rsi,    "arg2",   dwarf_rsi_x86_64,     dwarf_rsi_x86_64,     LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM),
  96     DEFINE_GPR(rbp,    "fp",     dwarf_rbp_x86_64,     dwarf_rbp_x86_64,     LLDB_REGNUM_GENERIC_FP,     LLDB_INVALID_REGNUM),
  97     DEFINE_GPR(rsp,    "sp",     dwarf_rsp_x86_64,     dwarf_rsp_x86_64,     LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM),
  98     DEFINE_GPR(r8,     "arg5",   dwarf_r8_x86_64,      dwarf_r8_x86_64,      LLDB_REGNUM_GENERIC_ARG5,   LLDB_INVALID_REGNUM),
  99     DEFINE_GPR(r9,     "arg6",   dwarf_r9_x86_64,      dwarf_r9_x86_64,      LLDB_REGNUM_GENERIC_ARG6,   LLDB_INVALID_REGNUM),
 100     DEFINE_GPR(r10,    nullptr,  dwarf_r10_x86_64,     dwarf_r10_x86_64,     LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 101     DEFINE_GPR(r11,    nullptr,  dwarf_r11_x86_64,     dwarf_r11_x86_64,     LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 102     DEFINE_GPR(r12,    nullptr,  dwarf_r12_x86_64,     dwarf_r12_x86_64,     LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 103     DEFINE_GPR(r13,    nullptr,  dwarf_r13_x86_64,     dwarf_r13_x86_64,     LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 104     DEFINE_GPR(r14,    nullptr,  dwarf_r14_x86_64,     dwarf_r14_x86_64,     LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 105     DEFINE_GPR(r15,    nullptr,  dwarf_r15_x86_64,     dwarf_r15_x86_64,     LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 106     DEFINE_GPR(rip,    "pc",     dwarf_rip_x86_64,     dwarf_rip_x86_64,     LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM),
 107     DEFINE_GPR(rflags, "flags",  dwarf_rflags_x86_64,  dwarf_rflags_x86_64,  LLDB_REGNUM_GENERIC_FLAGS,  LLDB_INVALID_REGNUM),
 108     DEFINE_GPR(cs,     nullptr,  dwarf_cs_x86_64,      dwarf_cs_x86_64,      LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 109     DEFINE_GPR(fs,     nullptr,  dwarf_fs_x86_64,      dwarf_fs_x86_64,      LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 110     DEFINE_GPR(gs,     nullptr,  dwarf_gs_x86_64,      dwarf_gs_x86_64,      LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 111     DEFINE_GPR(ss,     nullptr,  dwarf_ss_x86_64,      dwarf_ss_x86_64,      LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 112     DEFINE_GPR(ds,     nullptr,  dwarf_ds_x86_64,      dwarf_ds_x86_64,      LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 113     DEFINE_GPR(es,     nullptr,  dwarf_es_x86_64,      dwarf_es_x86_64,      LLDB_INVALID_REGNUM,        LLDB_INVALID_REGNUM),
 114     DEFINE_XMM(xmm0),
 115     DEFINE_XMM(xmm1),
 116     DEFINE_XMM(xmm2),
 117     DEFINE_XMM(xmm3),
 118     DEFINE_XMM(xmm4),
 119     DEFINE_XMM(xmm5),
 120     DEFINE_XMM(xmm6),
 121     DEFINE_XMM(xmm7),
 122     DEFINE_XMM(xmm8),
 123     DEFINE_XMM(xmm9),
 124     DEFINE_XMM(xmm10),
 125     DEFINE_XMM(xmm11),
 126     DEFINE_XMM(xmm12),
 127     DEFINE_XMM(xmm13),
 128     DEFINE_XMM(xmm14),
 129     DEFINE_XMM(xmm15)
 130 };
 131 // clang-format on
 132 } // namespace
 133
 134 RegisterContextWindows_x86_64::RegisterContextWindows_x86_64(
 135     const ArchSpec &target_arch)
 136     : lldb_private::RegisterInfoInterface(target_arch) {
 137   assert(target_arch.GetMachine() == llvm::Triple::x86_64);
 138 }
 139
 140 const RegisterInfo *RegisterContextWindows_x86_64::GetRegisterInfo() const {
 141   return g_register_infos_x86_64;
 142 }
 143
 144 uint32_t RegisterContextWindows_x86_64::GetRegisterCount() const {
 145   return llvm::array_lengthof(g_register_infos_x86_64);
 146 }
 147
 148 uint32_t RegisterContextWindows_x86_64::GetUserRegisterCount() const {
 149   return llvm::array_lengthof(g_register_infos_x86_64);
 150 }
 151
 152 size_t RegisterContextWindows_x86_64::GetGPRSize() const { return sizeof(GPR); }