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
15using namespace lldb_private;
16using namespace lldb;
17
18namespace {
19typedef 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
55typedef 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
87static 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
134RegisterContextWindows_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
140const RegisterInfo *RegisterContextWindows_x86_64::GetRegisterInfo() const {
141  return g_register_infos_x86_64;
142}
143
144uint32_t RegisterContextWindows_x86_64::GetRegisterCount() const {
145  return llvm::array_lengthof(g_register_infos_x86_64);
146}
147
148uint32_t RegisterContextWindows_x86_64::GetUserRegisterCount() const {
149  return llvm::array_lengthof(g_register_infos_x86_64);
150}
151
152size_t RegisterContextWindows_x86_64::GetGPRSize() const { return sizeof(GPR); }
153