1 //===-- RegisterInfos_powerpc.h ---------------------------------*- 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 <cstddef>
10 
11 // Computes the offset of the given GPR in the user data area.
12 #define GPR_OFFSET(regname) (offsetof(GPR, regname))
13 #define FPR_OFFSET(regname) (sizeof(GPR) + offsetof(FPR, regname))
14 #define VMX_OFFSET(regname) (sizeof(GPR) + sizeof(FPR) + offsetof(VMX, regname))
15 #define GPR_SIZE(regname) (sizeof(((GPR *)NULL)->regname))
16 
17 #ifdef DECLARE_REGISTER_INFOS_POWERPC_STRUCT
18 
19 // Note that the size and offset will be updated by platform-specific classes.
20 #define DEFINE_GPR(reg, alt, lldb_kind)                                        \
21   {                                                                            \
22     #reg, alt, GPR_SIZE(reg), GPR_OFFSET(reg), eEncodingUint, eFormatHex,      \
23                                          {dwarf_##reg##_powerpc,               \
24                                           dwarf_##reg##_powerpc, lldb_kind,    \
25                                           LLDB_INVALID_REGNUM,                 \
26                                           gpr_##reg##_powerpc },               \
27                                           NULL, NULL, NULL, 0                  \
28   }
29 #define DEFINE_FPR(reg, lldb_kind)                                             \
30   {                                                                            \
31     #reg, NULL, 8, FPR_OFFSET(reg), eEncodingIEEE754, eFormatFloat,            \
32                               {dwarf_##reg##_powerpc, dwarf_##reg##_powerpc,   \
33                                lldb_kind, LLDB_INVALID_REGNUM,                 \
34                                fpr_##reg##_powerpc },                          \
35                                NULL, NULL, NULL, 0                             \
36   }
37 #define DEFINE_VMX(reg, lldb_kind)                                             \
38   {                                                                            \
39     #reg, NULL, 16, VMX_OFFSET(reg), eEncodingVector, eFormatVectorOfUInt32,   \
40                                {dwarf_##reg##_powerpc, dwarf_##reg##_powerpc,  \
41                                 lldb_kind, LLDB_INVALID_REGNUM,                \
42                                 vmx_##reg##_powerpc },                         \
43                                 NULL, NULL, NULL, 0                            \
44   }
45 
46 // General purpose registers.            EH_Frame,                  DWARF,
47 // Generic,                Process Plugin
48 #define POWERPC_REGS                                                           \
49   DEFINE_GPR(r0, NULL, LLDB_INVALID_REGNUM)                                    \
50   , DEFINE_GPR(r1, "sp", LLDB_REGNUM_GENERIC_SP),                              \
51       DEFINE_GPR(r2, NULL, LLDB_INVALID_REGNUM),                               \
52       DEFINE_GPR(r3, "arg1", LLDB_REGNUM_GENERIC_ARG1),                        \
53       DEFINE_GPR(r4, "arg2", LLDB_REGNUM_GENERIC_ARG2),                        \
54       DEFINE_GPR(r5, "arg3", LLDB_REGNUM_GENERIC_ARG3),                        \
55       DEFINE_GPR(r6, "arg4", LLDB_REGNUM_GENERIC_ARG4),                        \
56       DEFINE_GPR(r7, "arg5", LLDB_REGNUM_GENERIC_ARG5),                        \
57       DEFINE_GPR(r8, "arg6", LLDB_REGNUM_GENERIC_ARG6),                        \
58       DEFINE_GPR(r9, "arg7", LLDB_REGNUM_GENERIC_ARG7),                        \
59       DEFINE_GPR(r10, "arg8", LLDB_REGNUM_GENERIC_ARG8),                       \
60       DEFINE_GPR(r11, NULL, LLDB_INVALID_REGNUM),                              \
61       DEFINE_GPR(r12, NULL, LLDB_INVALID_REGNUM),                              \
62       DEFINE_GPR(r13, NULL, LLDB_INVALID_REGNUM),                              \
63       DEFINE_GPR(r14, NULL, LLDB_INVALID_REGNUM),                              \
64       DEFINE_GPR(r15, NULL, LLDB_INVALID_REGNUM),                              \
65       DEFINE_GPR(r16, NULL, LLDB_INVALID_REGNUM),                              \
66       DEFINE_GPR(r17, NULL, LLDB_INVALID_REGNUM),                              \
67       DEFINE_GPR(r18, NULL, LLDB_INVALID_REGNUM),                              \
68       DEFINE_GPR(r19, NULL, LLDB_INVALID_REGNUM),                              \
69       DEFINE_GPR(r20, NULL, LLDB_INVALID_REGNUM),                              \
70       DEFINE_GPR(r21, NULL, LLDB_INVALID_REGNUM),                              \
71       DEFINE_GPR(r22, NULL, LLDB_INVALID_REGNUM),                              \
72       DEFINE_GPR(r23, NULL, LLDB_INVALID_REGNUM),                              \
73       DEFINE_GPR(r24, NULL, LLDB_INVALID_REGNUM),                              \
74       DEFINE_GPR(r25, NULL, LLDB_INVALID_REGNUM),                              \
75       DEFINE_GPR(r26, NULL, LLDB_INVALID_REGNUM),                              \
76       DEFINE_GPR(r27, NULL, LLDB_INVALID_REGNUM),                              \
77       DEFINE_GPR(r28, NULL, LLDB_INVALID_REGNUM),                              \
78       DEFINE_GPR(r29, NULL, LLDB_INVALID_REGNUM),                              \
79       DEFINE_GPR(r30, NULL, LLDB_INVALID_REGNUM),                              \
80       DEFINE_GPR(r31, NULL, LLDB_INVALID_REGNUM),                              \
81       DEFINE_GPR(lr, "lr", LLDB_REGNUM_GENERIC_RA),                            \
82       DEFINE_GPR(cr, "cr", LLDB_REGNUM_GENERIC_FLAGS),                         \
83       DEFINE_GPR(xer, "xer", LLDB_INVALID_REGNUM),                             \
84       DEFINE_GPR(ctr, "ctr", LLDB_INVALID_REGNUM),                             \
85       DEFINE_GPR(pc, "pc", LLDB_REGNUM_GENERIC_PC),                            \
86       DEFINE_FPR(f0, LLDB_INVALID_REGNUM),                                     \
87       DEFINE_FPR(f1, LLDB_INVALID_REGNUM),                                     \
88       DEFINE_FPR(f2, LLDB_INVALID_REGNUM),                                     \
89       DEFINE_FPR(f3, LLDB_INVALID_REGNUM),                                     \
90       DEFINE_FPR(f4, LLDB_INVALID_REGNUM),                                     \
91       DEFINE_FPR(f5, LLDB_INVALID_REGNUM),                                     \
92       DEFINE_FPR(f6, LLDB_INVALID_REGNUM),                                     \
93       DEFINE_FPR(f7, LLDB_INVALID_REGNUM),                                     \
94       DEFINE_FPR(f8, LLDB_INVALID_REGNUM),                                     \
95       DEFINE_FPR(f9, LLDB_INVALID_REGNUM),                                     \
96       DEFINE_FPR(f10, LLDB_INVALID_REGNUM),                                    \
97       DEFINE_FPR(f11, LLDB_INVALID_REGNUM),                                    \
98       DEFINE_FPR(f12, LLDB_INVALID_REGNUM),                                    \
99       DEFINE_FPR(f13, LLDB_INVALID_REGNUM),                                    \
100       DEFINE_FPR(f14, LLDB_INVALID_REGNUM),                                    \
101       DEFINE_FPR(f15, LLDB_INVALID_REGNUM),                                    \
102       DEFINE_FPR(f16, LLDB_INVALID_REGNUM),                                    \
103       DEFINE_FPR(f17, LLDB_INVALID_REGNUM),                                    \
104       DEFINE_FPR(f18, LLDB_INVALID_REGNUM),                                    \
105       DEFINE_FPR(f19, LLDB_INVALID_REGNUM),                                    \
106       DEFINE_FPR(f20, LLDB_INVALID_REGNUM),                                    \
107       DEFINE_FPR(f21, LLDB_INVALID_REGNUM),                                    \
108       DEFINE_FPR(f22, LLDB_INVALID_REGNUM),                                    \
109       DEFINE_FPR(f23, LLDB_INVALID_REGNUM),                                    \
110       DEFINE_FPR(f24, LLDB_INVALID_REGNUM),                                    \
111       DEFINE_FPR(f25, LLDB_INVALID_REGNUM),                                    \
112       DEFINE_FPR(f26, LLDB_INVALID_REGNUM),                                    \
113       DEFINE_FPR(f27, LLDB_INVALID_REGNUM),                                    \
114       DEFINE_FPR(f28, LLDB_INVALID_REGNUM),                                    \
115       DEFINE_FPR(f29, LLDB_INVALID_REGNUM),                                    \
116       DEFINE_FPR(f30, LLDB_INVALID_REGNUM),                                    \
117       DEFINE_FPR(f31, LLDB_INVALID_REGNUM),                                    \
118       {"fpscr",                                                                \
119        NULL,                                                                   \
120        8,                                                                      \
121        FPR_OFFSET(fpscr),                                                      \
122        eEncodingUint,                                                          \
123        eFormatHex,                                                             \
124        {dwarf_fpscr_powerpc, dwarf_fpscr_powerpc, LLDB_INVALID_REGNUM,         \
125         LLDB_INVALID_REGNUM, fpr_fpscr_powerpc},                               \
126        NULL,                                                                   \
127        NULL,                                                                   \
128        NULL,                                                                   \
129        0},                                                                     \
130       DEFINE_VMX(v0, LLDB_INVALID_REGNUM),                                     \
131       DEFINE_VMX(v1, LLDB_INVALID_REGNUM),                                     \
132       DEFINE_VMX(v2, LLDB_INVALID_REGNUM),                                     \
133       DEFINE_VMX(v3, LLDB_INVALID_REGNUM),                                     \
134       DEFINE_VMX(v4, LLDB_INVALID_REGNUM),                                     \
135       DEFINE_VMX(v5, LLDB_INVALID_REGNUM),                                     \
136       DEFINE_VMX(v6, LLDB_INVALID_REGNUM),                                     \
137       DEFINE_VMX(v7, LLDB_INVALID_REGNUM),                                     \
138       DEFINE_VMX(v8, LLDB_INVALID_REGNUM),                                     \
139       DEFINE_VMX(v9, LLDB_INVALID_REGNUM),                                     \
140       DEFINE_VMX(v10, LLDB_INVALID_REGNUM),                                    \
141       DEFINE_VMX(v11, LLDB_INVALID_REGNUM),                                    \
142       DEFINE_VMX(v12, LLDB_INVALID_REGNUM),                                    \
143       DEFINE_VMX(v13, LLDB_INVALID_REGNUM),                                    \
144       DEFINE_VMX(v14, LLDB_INVALID_REGNUM),                                    \
145       DEFINE_VMX(v15, LLDB_INVALID_REGNUM),                                    \
146       DEFINE_VMX(v16, LLDB_INVALID_REGNUM),                                    \
147       DEFINE_VMX(v17, LLDB_INVALID_REGNUM),                                    \
148       DEFINE_VMX(v18, LLDB_INVALID_REGNUM),                                    \
149       DEFINE_VMX(v19, LLDB_INVALID_REGNUM),                                    \
150       DEFINE_VMX(v20, LLDB_INVALID_REGNUM),                                    \
151       DEFINE_VMX(v21, LLDB_INVALID_REGNUM),                                    \
152       DEFINE_VMX(v22, LLDB_INVALID_REGNUM),                                    \
153       DEFINE_VMX(v23, LLDB_INVALID_REGNUM),                                    \
154       DEFINE_VMX(v24, LLDB_INVALID_REGNUM),                                    \
155       DEFINE_VMX(v25, LLDB_INVALID_REGNUM),                                    \
156       DEFINE_VMX(v26, LLDB_INVALID_REGNUM),                                    \
157       DEFINE_VMX(v27, LLDB_INVALID_REGNUM),                                    \
158       DEFINE_VMX(v28, LLDB_INVALID_REGNUM),                                    \
159       DEFINE_VMX(v29, LLDB_INVALID_REGNUM),                                    \
160       DEFINE_VMX(v30, LLDB_INVALID_REGNUM),                                    \
161       DEFINE_VMX(v31, LLDB_INVALID_REGNUM),                                    \
162       {"vrsave",                                                               \
163        NULL,                                                                   \
164        4,                                                                      \
165        VMX_OFFSET(vrsave),                                                     \
166        eEncodingUint,                                                          \
167        eFormatHex,                                                             \
168        {dwarf_vrsave_powerpc, dwarf_vrsave_powerpc, LLDB_INVALID_REGNUM,       \
169         LLDB_INVALID_REGNUM, vmx_vrsave_powerpc},                              \
170        NULL,                                                                   \
171        NULL,                                                                   \
172        NULL,                                                                   \
173        0},                                                                     \
174       {"vscr",                                                                 \
175        NULL,                                                                   \
176        4,                                                                      \
177        VMX_OFFSET(vscr),                                                       \
178        eEncodingUint,                                                          \
179        eFormatHex,                                                             \
180        {dwarf_vscr_powerpc, dwarf_vscr_powerpc, LLDB_INVALID_REGNUM,           \
181         LLDB_INVALID_REGNUM, vmx_vscr_powerpc},                                \
182        NULL,                                                                   \
183        NULL,                                                                   \
184        NULL,                                                                   \
185        0},
186 
187 static RegisterInfo g_register_infos_powerpc64[] = {
188 #define GPR GPR64
189     POWERPC_REGS
190 #undef GPR
191 };
192 
193 static RegisterInfo g_register_infos_powerpc32[] = {
194 #define GPR GPR32
195     POWERPC_REGS
196 #undef GPR
197 };
198 
199 static RegisterInfo g_register_infos_powerpc64_32[] = {
200 #define GPR GPR64
201 #undef GPR_SIZE
202 #define GPR_SIZE(reg) (sizeof(uint32_t))
203 #undef GPR_OFFSET
204 #define GPR_OFFSET(regname)                                                    \
205   (offsetof(GPR, regname) + (sizeof(((GPR *)NULL)->regname) - GPR_SIZE(reg)))
206     POWERPC_REGS
207 #undef GPR
208 };
209 
210 static_assert((sizeof(g_register_infos_powerpc32) /
211                sizeof(g_register_infos_powerpc32[0])) ==
212                   k_num_registers_powerpc,
213               "g_register_infos_powerpc32 has wrong number of register infos");
214 static_assert((sizeof(g_register_infos_powerpc64) /
215                sizeof(g_register_infos_powerpc64[0])) ==
216                   k_num_registers_powerpc,
217               "g_register_infos_powerpc64 has wrong number of register infos");
218 static_assert(sizeof(g_register_infos_powerpc64_32) ==
219                   sizeof(g_register_infos_powerpc64),
220               "g_register_infos_powerpc64_32 doesn't match size of "
221               "g_register_infos_powerpc64");
222 
223 #undef DEFINE_FPR
224 #undef DEFINE_GPR
225 
226 #endif // DECLARE_REGISTER_INFOS_POWERPC_STRUCT
227 
228 #undef GPR_OFFSET
229