xref: /freebsd/contrib/llvm-project/lldb/source/Plugins/Process/Utility/RegisterContextWindows_x86_64.cpp (revision 06c3fb2749bda94cb5201f81ffdb8fa6c3161b2e)
1 //===-- RegisterContextWindows_x86_64.cpp ---------------------------------===//
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,                                                               \
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,                                            \
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,    nullptr,  dwarf_rcx_x86_64,     dwarf_rcx_x86_64,     LLDB_REGNUM_GENERIC_ARG4,   LLDB_INVALID_REGNUM),
93     DEFINE_GPR(rdx,    nullptr,  dwarf_rdx_x86_64,     dwarf_rdx_x86_64,     LLDB_REGNUM_GENERIC_ARG3,   LLDB_INVALID_REGNUM),
94     DEFINE_GPR(rdi,    nullptr,  dwarf_rdi_x86_64,     dwarf_rdi_x86_64,     LLDB_REGNUM_GENERIC_ARG1,   LLDB_INVALID_REGNUM),
95     DEFINE_GPR(rsi,    nullptr,  dwarf_rsi_x86_64,     dwarf_rsi_x86_64,     LLDB_REGNUM_GENERIC_ARG2,   LLDB_INVALID_REGNUM),
96     DEFINE_GPR(rbp,    nullptr,  dwarf_rbp_x86_64,     dwarf_rbp_x86_64,     LLDB_REGNUM_GENERIC_FP,     LLDB_INVALID_REGNUM),
97     DEFINE_GPR(rsp,    nullptr,  dwarf_rsp_x86_64,     dwarf_rsp_x86_64,     LLDB_REGNUM_GENERIC_SP,     LLDB_INVALID_REGNUM),
98     DEFINE_GPR(r8,     nullptr,  dwarf_r8_x86_64,      dwarf_r8_x86_64,      LLDB_REGNUM_GENERIC_ARG5,   LLDB_INVALID_REGNUM),
99     DEFINE_GPR(r9,     nullptr,  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,    nullptr,  dwarf_rip_x86_64,     dwarf_rip_x86_64,     LLDB_REGNUM_GENERIC_PC,     LLDB_INVALID_REGNUM),
107     DEFINE_GPR(rflags, nullptr,  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 
RegisterContextWindows_x86_64(const ArchSpec & target_arch)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 
GetRegisterInfo() const140 const RegisterInfo *RegisterContextWindows_x86_64::GetRegisterInfo() const {
141   return g_register_infos_x86_64;
142 }
143 
GetRegisterCount() const144 uint32_t RegisterContextWindows_x86_64::GetRegisterCount() const {
145   return std::size(g_register_infos_x86_64);
146 }
147 
GetUserRegisterCount() const148 uint32_t RegisterContextWindows_x86_64::GetUserRegisterCount() const {
149   return std::size(g_register_infos_x86_64);
150 }
151 
GetGPRSize() const152 size_t RegisterContextWindows_x86_64::GetGPRSize() const { return sizeof(GPR); }
153