1//===-- GDBRemoteRegisterFallback.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 "GDBRemoteRegisterFallback.h"
10
11namespace lldb_private {
12namespace process_gdb_remote {
13
14#define REG(name, size)                                                        \
15  DynamicRegisterInfo::Register {                                              \
16    ConstString(#name), empty_alt_name, reg_set, size, LLDB_INVALID_INDEX32,   \
17        lldb::eEncodingUint, lldb::eFormatHex, LLDB_INVALID_REGNUM,            \
18        LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, {}, {}  \
19  }
20#define R64(name) REG(name, 8)
21#define R32(name) REG(name, 4)
22#define R16(name) REG(name, 2)
23
24static std::vector<DynamicRegisterInfo::Register> GetRegisters_aarch64() {
25  ConstString empty_alt_name;
26  ConstString reg_set{"general purpose registers"};
27
28  std::vector<DynamicRegisterInfo::Register> registers{
29      R64(x0),  R64(x1),  R64(x2),  R64(x3),  R64(x4),  R64(x5),   R64(x6),
30      R64(x7),  R64(x8),  R64(x9),  R64(x10), R64(x11), R64(x12),  R64(x13),
31      R64(x14), R64(x15), R64(x16), R64(x17), R64(x18), R64(x19),  R64(x20),
32      R64(x21), R64(x22), R64(x23), R64(x24), R64(x25), R64(x26),  R64(x27),
33      R64(x28), R64(x29), R64(x30), R64(sp),  R64(pc),  R32(cpsr),
34  };
35
36  return registers;
37}
38
39static std::vector<DynamicRegisterInfo::Register> GetRegisters_msp430() {
40  ConstString empty_alt_name;
41  ConstString reg_set{"general purpose registers"};
42
43  std::vector<DynamicRegisterInfo::Register> registers{
44      R16(pc),  R16(sp),  R16(r2),  R16(r3), R16(fp),  R16(r5),
45      R16(r6),  R16(r7),  R16(r8),  R16(r9), R16(r10), R16(r11),
46      R16(r12), R16(r13), R16(r14), R16(r15)};
47
48  return registers;
49}
50
51static std::vector<DynamicRegisterInfo::Register> GetRegisters_x86() {
52  ConstString empty_alt_name;
53  ConstString reg_set{"general purpose registers"};
54
55  std::vector<DynamicRegisterInfo::Register> registers{
56      R32(eax), R32(ecx), R32(edx), R32(ebx),    R32(esp), R32(ebp),
57      R32(esi), R32(edi), R32(eip), R32(eflags), R32(cs),  R32(ss),
58      R32(ds),  R32(es),  R32(fs),  R32(gs),
59  };
60
61  return registers;
62}
63
64static std::vector<DynamicRegisterInfo::Register> GetRegisters_x86_64() {
65  ConstString empty_alt_name;
66  ConstString reg_set{"general purpose registers"};
67
68  std::vector<DynamicRegisterInfo::Register> registers{
69      R64(rax), R64(rbx), R64(rcx), R64(rdx), R64(rsi), R64(rdi),
70      R64(rbp), R64(rsp), R64(r8),  R64(r9),  R64(r10), R64(r11),
71      R64(r12), R64(r13), R64(r14), R64(r15), R64(rip), R32(eflags),
72      R32(cs),  R32(ss),  R32(ds),  R32(es),  R32(fs),  R32(gs),
73  };
74
75  return registers;
76}
77
78#undef R32
79#undef R64
80#undef REG
81
82std::vector<DynamicRegisterInfo::Register>
83GetFallbackRegisters(const ArchSpec &arch_to_use) {
84  switch (arch_to_use.GetMachine()) {
85  case llvm::Triple::aarch64:
86    return GetRegisters_aarch64();
87  case llvm::Triple::msp430:
88    return GetRegisters_msp430();
89  case llvm::Triple::x86:
90    return GetRegisters_x86();
91  case llvm::Triple::x86_64:
92    return GetRegisters_x86_64();
93  default:
94    break;
95  }
96
97  return {};
98}
99
100} // namespace process_gdb_remote
101} // namespace lldb_private
102