1 //===-- RegisterInfos_mips.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 #include "lldb/Core/dwarf.h"
12 #include "llvm/Support/Compiler.h"
13 
14 
15 #ifdef DECLARE_REGISTER_INFOS_MIPS_STRUCT
16 
17 // Computes the offset of the given GPR in the user data area.
18 #define GPR_OFFSET(regname)                                                    \
19   (LLVM_EXTENSION offsetof(UserArea, gpr) +                                    \
20    LLVM_EXTENSION offsetof(GPR_linux_mips, regname))
21 
22 // Computes the offset of the given FPR in the extended data area.
23 #define FPR_OFFSET(regname)                                                    \
24   (LLVM_EXTENSION offsetof(UserArea, fpr) +                                    \
25    LLVM_EXTENSION offsetof(FPR_linux_mips, regname))
26 
27 // Computes the offset of the given MSA in the extended data area.
28 #define MSA_OFFSET(regname)                                                    \
29   (LLVM_EXTENSION offsetof(UserArea, msa) +                                    \
30    LLVM_EXTENSION offsetof(MSA_linux_mips, regname))
31 
32 // Note that the size and offset will be updated by platform-specific classes.
33 #define DEFINE_GPR(reg, alt, kind1, kind2, kind3)                              \
34   {                                                                            \
35     #reg, alt, sizeof(((GPR_linux_mips *) NULL)->reg) / 2,                     \
36                       GPR_OFFSET(reg), eEncodingUint, eFormatHex,              \
37                                  {kind1, kind2, kind3, ptrace_##reg##_mips,    \
38                                   gpr_##reg##_mips },                          \
39                                   NULL, NULL, NULL, 0                          \
40   }
41 
42 const uint8_t dwarf_opcode_mips[] = {
43     llvm::dwarf::DW_OP_regx,  dwarf_sr_mips,          llvm::dwarf::DW_OP_lit1,
44     llvm::dwarf::DW_OP_lit26, llvm::dwarf::DW_OP_shl, llvm::dwarf::DW_OP_and,
45     llvm::dwarf::DW_OP_lit26, llvm::dwarf::DW_OP_shr};
46 
47 #define DEFINE_FPR(reg, alt, kind1, kind2, kind3)                              \
48   {                                                                            \
49     #reg, alt, sizeof(((FPR_linux_mips *) NULL)->reg),                         \
50                       FPR_OFFSET(reg), eEncodingIEEE754, eFormatFloat,         \
51                                  {kind1, kind2, kind3, ptrace_##reg##_mips,    \
52                                   fpr_##reg##_mips },                          \
53                                   NULL, NULL, dwarf_opcode_mips,               \
54                                   sizeof(dwarf_opcode_mips)                    \
55   }
56 
57 #define DEFINE_FPR_INFO(reg, alt, kind1, kind2, kind3)                         \
58   {                                                                            \
59     #reg, alt, sizeof(((FPR_linux_mips *) NULL)->reg),                         \
60                       FPR_OFFSET(reg), eEncodingUint, eFormatHex,              \
61                                  {kind1, kind2, kind3, ptrace_##reg##_mips,    \
62                                   fpr_##reg##_mips },                          \
63                                   NULL, NULL, NULL, 0                          \
64   }
65 
66 #define DEFINE_MSA(reg, alt, kind1, kind2, kind3, kind4)                       \
67   {                                                                            \
68     #reg, alt, sizeof(((MSA_linux_mips *) 0)->reg),                            \
69                       MSA_OFFSET(reg), eEncodingVector, eFormatVectorOfUInt8,  \
70                                  {kind1, kind2, kind3, kind4,                  \
71                                   msa_##reg##_mips },                          \
72                                   NULL, NULL, NULL, 0                          \
73   }
74 
75 #define DEFINE_MSA_INFO(reg, alt, kind1, kind2, kind3, kind4)                  \
76   {                                                                            \
77     #reg, alt, sizeof(((MSA_linux_mips *) 0)->reg),                            \
78                       MSA_OFFSET(reg), eEncodingUint, eFormatHex,              \
79                                  {kind1, kind2, kind3, kind4,                  \
80                                   msa_##reg##_mips },                          \
81                                   NULL, NULL, NULL, 0                          \
82   }
83 
84 // RegisterKind: EH_Frame, DWARF, Generic, Procss Plugin, LLDB
85 
86 static RegisterInfo g_register_infos_mips[] = {
87     DEFINE_GPR(zero, "zero", dwarf_zero_mips, dwarf_zero_mips,
88                LLDB_INVALID_REGNUM),
89     DEFINE_GPR(r1, "at", dwarf_r1_mips, dwarf_r1_mips, LLDB_INVALID_REGNUM),
90     DEFINE_GPR(r2, nullptr, dwarf_r2_mips, dwarf_r2_mips, LLDB_INVALID_REGNUM),
91     DEFINE_GPR(r3, nullptr, dwarf_r3_mips, dwarf_r3_mips, LLDB_INVALID_REGNUM),
92     DEFINE_GPR(r4, nullptr, dwarf_r4_mips, dwarf_r4_mips,
93                LLDB_REGNUM_GENERIC_ARG1),
94     DEFINE_GPR(r5, nullptr, dwarf_r5_mips, dwarf_r5_mips,
95                LLDB_REGNUM_GENERIC_ARG2),
96     DEFINE_GPR(r6, nullptr, dwarf_r6_mips, dwarf_r6_mips,
97                LLDB_REGNUM_GENERIC_ARG3),
98     DEFINE_GPR(r7, nullptr, dwarf_r7_mips, dwarf_r7_mips,
99                LLDB_REGNUM_GENERIC_ARG4),
100     DEFINE_GPR(r8, nullptr, dwarf_r8_mips, dwarf_r8_mips, LLDB_INVALID_REGNUM),
101     DEFINE_GPR(r9, nullptr, dwarf_r9_mips, dwarf_r9_mips, LLDB_INVALID_REGNUM),
102     DEFINE_GPR(r10, nullptr, dwarf_r10_mips, dwarf_r10_mips,
103                LLDB_INVALID_REGNUM),
104     DEFINE_GPR(r11, nullptr, dwarf_r11_mips, dwarf_r11_mips,
105                LLDB_INVALID_REGNUM),
106     DEFINE_GPR(r12, nullptr, dwarf_r12_mips, dwarf_r12_mips,
107                LLDB_INVALID_REGNUM),
108     DEFINE_GPR(r13, nullptr, dwarf_r13_mips, dwarf_r13_mips,
109                LLDB_INVALID_REGNUM),
110     DEFINE_GPR(r14, nullptr, dwarf_r14_mips, dwarf_r14_mips,
111                LLDB_INVALID_REGNUM),
112     DEFINE_GPR(r15, nullptr, dwarf_r15_mips, dwarf_r15_mips,
113                LLDB_INVALID_REGNUM),
114     DEFINE_GPR(r16, nullptr, dwarf_r16_mips, dwarf_r16_mips,
115                LLDB_INVALID_REGNUM),
116     DEFINE_GPR(r17, nullptr, dwarf_r17_mips, dwarf_r17_mips,
117                LLDB_INVALID_REGNUM),
118     DEFINE_GPR(r18, nullptr, dwarf_r18_mips, dwarf_r18_mips,
119                LLDB_INVALID_REGNUM),
120     DEFINE_GPR(r19, nullptr, dwarf_r19_mips, dwarf_r19_mips,
121                LLDB_INVALID_REGNUM),
122     DEFINE_GPR(r20, nullptr, dwarf_r20_mips, dwarf_r20_mips,
123                LLDB_INVALID_REGNUM),
124     DEFINE_GPR(r21, nullptr, dwarf_r21_mips, dwarf_r21_mips,
125                LLDB_INVALID_REGNUM),
126     DEFINE_GPR(r22, nullptr, dwarf_r22_mips, dwarf_r22_mips,
127                LLDB_INVALID_REGNUM),
128     DEFINE_GPR(r23, nullptr, dwarf_r23_mips, dwarf_r23_mips,
129                LLDB_INVALID_REGNUM),
130     DEFINE_GPR(r24, nullptr, dwarf_r24_mips, dwarf_r24_mips,
131                LLDB_INVALID_REGNUM),
132     DEFINE_GPR(r25, nullptr, dwarf_r25_mips, dwarf_r25_mips,
133                LLDB_INVALID_REGNUM),
134     DEFINE_GPR(r26, nullptr, dwarf_r26_mips, dwarf_r26_mips,
135                LLDB_INVALID_REGNUM),
136     DEFINE_GPR(r27, nullptr, dwarf_r27_mips, dwarf_r27_mips,
137                LLDB_INVALID_REGNUM),
138     DEFINE_GPR(gp, "gp", dwarf_gp_mips, dwarf_gp_mips, LLDB_INVALID_REGNUM),
139     DEFINE_GPR(sp, "sp", dwarf_sp_mips, dwarf_sp_mips, LLDB_REGNUM_GENERIC_SP),
140     DEFINE_GPR(r30, "fp", dwarf_r30_mips, dwarf_r30_mips,
141                LLDB_REGNUM_GENERIC_FP),
142     DEFINE_GPR(ra, "ra", dwarf_ra_mips, dwarf_ra_mips, LLDB_REGNUM_GENERIC_RA),
143     DEFINE_GPR(sr, "status", dwarf_sr_mips, dwarf_sr_mips,
144                LLDB_REGNUM_GENERIC_FLAGS),
145     DEFINE_GPR(mullo, nullptr, dwarf_lo_mips, dwarf_lo_mips,
146                LLDB_INVALID_REGNUM),
147     DEFINE_GPR(mulhi, nullptr, dwarf_hi_mips, dwarf_hi_mips,
148                LLDB_INVALID_REGNUM),
149     DEFINE_GPR(badvaddr, nullptr, dwarf_bad_mips, dwarf_bad_mips,
150                LLDB_INVALID_REGNUM),
151     DEFINE_GPR(cause, nullptr, dwarf_cause_mips, dwarf_cause_mips,
152                LLDB_INVALID_REGNUM),
153     DEFINE_GPR(pc, nullptr, dwarf_pc_mips, dwarf_pc_mips,
154                LLDB_REGNUM_GENERIC_PC),
155     DEFINE_GPR(config5, nullptr, dwarf_config5_mips, dwarf_config5_mips,
156                LLDB_INVALID_REGNUM),
157     DEFINE_FPR(f0, nullptr, dwarf_f0_mips, dwarf_f0_mips, LLDB_INVALID_REGNUM),
158     DEFINE_FPR(f1, nullptr, dwarf_f1_mips, dwarf_f1_mips, LLDB_INVALID_REGNUM),
159     DEFINE_FPR(f2, nullptr, dwarf_f2_mips, dwarf_f2_mips, LLDB_INVALID_REGNUM),
160     DEFINE_FPR(f3, nullptr, dwarf_f3_mips, dwarf_f3_mips, LLDB_INVALID_REGNUM),
161     DEFINE_FPR(f4, nullptr, dwarf_f4_mips, dwarf_f4_mips, LLDB_INVALID_REGNUM),
162     DEFINE_FPR(f5, nullptr, dwarf_f5_mips, dwarf_f5_mips, LLDB_INVALID_REGNUM),
163     DEFINE_FPR(f6, nullptr, dwarf_f6_mips, dwarf_f6_mips, LLDB_INVALID_REGNUM),
164     DEFINE_FPR(f7, nullptr, dwarf_f7_mips, dwarf_f7_mips, LLDB_INVALID_REGNUM),
165     DEFINE_FPR(f8, nullptr, dwarf_f8_mips, dwarf_f8_mips, LLDB_INVALID_REGNUM),
166     DEFINE_FPR(f9, nullptr, dwarf_f9_mips, dwarf_f9_mips, LLDB_INVALID_REGNUM),
167     DEFINE_FPR(f10, nullptr, dwarf_f10_mips, dwarf_f10_mips,
168                LLDB_INVALID_REGNUM),
169     DEFINE_FPR(f11, nullptr, dwarf_f11_mips, dwarf_f11_mips,
170                LLDB_INVALID_REGNUM),
171     DEFINE_FPR(f12, nullptr, dwarf_f12_mips, dwarf_f12_mips,
172                LLDB_INVALID_REGNUM),
173     DEFINE_FPR(f13, nullptr, dwarf_f13_mips, dwarf_f13_mips,
174                LLDB_INVALID_REGNUM),
175     DEFINE_FPR(f14, nullptr, dwarf_f14_mips, dwarf_f14_mips,
176                LLDB_INVALID_REGNUM),
177     DEFINE_FPR(f15, nullptr, dwarf_f15_mips, dwarf_f15_mips,
178                LLDB_INVALID_REGNUM),
179     DEFINE_FPR(f16, nullptr, dwarf_f16_mips, dwarf_f16_mips,
180                LLDB_INVALID_REGNUM),
181     DEFINE_FPR(f17, nullptr, dwarf_f17_mips, dwarf_f17_mips,
182                LLDB_INVALID_REGNUM),
183     DEFINE_FPR(f18, nullptr, dwarf_f18_mips, dwarf_f18_mips,
184                LLDB_INVALID_REGNUM),
185     DEFINE_FPR(f19, nullptr, dwarf_f19_mips, dwarf_f19_mips,
186                LLDB_INVALID_REGNUM),
187     DEFINE_FPR(f20, nullptr, dwarf_f20_mips, dwarf_f20_mips,
188                LLDB_INVALID_REGNUM),
189     DEFINE_FPR(f21, nullptr, dwarf_f21_mips, dwarf_f21_mips,
190                LLDB_INVALID_REGNUM),
191     DEFINE_FPR(f22, nullptr, dwarf_f22_mips, dwarf_f22_mips,
192                LLDB_INVALID_REGNUM),
193     DEFINE_FPR(f23, nullptr, dwarf_f23_mips, dwarf_f23_mips,
194                LLDB_INVALID_REGNUM),
195     DEFINE_FPR(f24, nullptr, dwarf_f24_mips, dwarf_f24_mips,
196                LLDB_INVALID_REGNUM),
197     DEFINE_FPR(f25, nullptr, dwarf_f25_mips, dwarf_f25_mips,
198                LLDB_INVALID_REGNUM),
199     DEFINE_FPR(f26, nullptr, dwarf_f26_mips, dwarf_f26_mips,
200                LLDB_INVALID_REGNUM),
201     DEFINE_FPR(f27, nullptr, dwarf_f27_mips, dwarf_f27_mips,
202                LLDB_INVALID_REGNUM),
203     DEFINE_FPR(f28, nullptr, dwarf_f28_mips, dwarf_f28_mips,
204                LLDB_INVALID_REGNUM),
205     DEFINE_FPR(f29, nullptr, dwarf_f29_mips, dwarf_f29_mips,
206                LLDB_INVALID_REGNUM),
207     DEFINE_FPR(f30, nullptr, dwarf_f30_mips, dwarf_f30_mips,
208                LLDB_INVALID_REGNUM),
209     DEFINE_FPR(f31, nullptr, dwarf_f31_mips, dwarf_f31_mips,
210                LLDB_INVALID_REGNUM),
211     DEFINE_FPR_INFO(fcsr, nullptr, dwarf_fcsr_mips, dwarf_fcsr_mips,
212                     LLDB_INVALID_REGNUM),
213     DEFINE_FPR_INFO(fir, nullptr, dwarf_fir_mips, dwarf_fir_mips,
214                     LLDB_INVALID_REGNUM),
215     DEFINE_FPR_INFO(config5, nullptr, dwarf_config5_mips, dwarf_config5_mips,
216                     LLDB_INVALID_REGNUM),
217     DEFINE_MSA(w0, nullptr, dwarf_w0_mips, dwarf_w0_mips, LLDB_INVALID_REGNUM,
218                LLDB_INVALID_REGNUM),
219     DEFINE_MSA(w1, nullptr, dwarf_w1_mips, dwarf_w1_mips, LLDB_INVALID_REGNUM,
220                LLDB_INVALID_REGNUM),
221     DEFINE_MSA(w2, nullptr, dwarf_w2_mips, dwarf_w2_mips, LLDB_INVALID_REGNUM,
222                LLDB_INVALID_REGNUM),
223     DEFINE_MSA(w3, nullptr, dwarf_w3_mips, dwarf_w3_mips, LLDB_INVALID_REGNUM,
224                LLDB_INVALID_REGNUM),
225     DEFINE_MSA(w4, nullptr, dwarf_w4_mips, dwarf_w4_mips, LLDB_INVALID_REGNUM,
226                LLDB_INVALID_REGNUM),
227     DEFINE_MSA(w5, nullptr, dwarf_w5_mips, dwarf_w5_mips, LLDB_INVALID_REGNUM,
228                LLDB_INVALID_REGNUM),
229     DEFINE_MSA(w6, nullptr, dwarf_w6_mips, dwarf_w6_mips, LLDB_INVALID_REGNUM,
230                LLDB_INVALID_REGNUM),
231     DEFINE_MSA(w7, nullptr, dwarf_w7_mips, dwarf_w7_mips, LLDB_INVALID_REGNUM,
232                LLDB_INVALID_REGNUM),
233     DEFINE_MSA(w8, nullptr, dwarf_w8_mips, dwarf_w8_mips, LLDB_INVALID_REGNUM,
234                LLDB_INVALID_REGNUM),
235     DEFINE_MSA(w9, nullptr, dwarf_w9_mips, dwarf_w9_mips, LLDB_INVALID_REGNUM,
236                LLDB_INVALID_REGNUM),
237     DEFINE_MSA(w10, nullptr, dwarf_w10_mips, dwarf_w10_mips,
238                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
239     DEFINE_MSA(w11, nullptr, dwarf_w11_mips, dwarf_w11_mips,
240                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
241     DEFINE_MSA(w12, nullptr, dwarf_w12_mips, dwarf_w12_mips,
242                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
243     DEFINE_MSA(w13, nullptr, dwarf_w13_mips, dwarf_w13_mips,
244                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
245     DEFINE_MSA(w14, nullptr, dwarf_w14_mips, dwarf_w14_mips,
246                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
247     DEFINE_MSA(w15, nullptr, dwarf_w15_mips, dwarf_w15_mips,
248                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
249     DEFINE_MSA(w16, nullptr, dwarf_w16_mips, dwarf_w16_mips,
250                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
251     DEFINE_MSA(w17, nullptr, dwarf_w17_mips, dwarf_w17_mips,
252                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
253     DEFINE_MSA(w18, nullptr, dwarf_w18_mips, dwarf_w18_mips,
254                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
255     DEFINE_MSA(w19, nullptr, dwarf_w19_mips, dwarf_w19_mips,
256                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
257     DEFINE_MSA(w20, nullptr, dwarf_w10_mips, dwarf_w20_mips,
258                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
259     DEFINE_MSA(w21, nullptr, dwarf_w21_mips, dwarf_w21_mips,
260                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
261     DEFINE_MSA(w22, nullptr, dwarf_w22_mips, dwarf_w22_mips,
262                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
263     DEFINE_MSA(w23, nullptr, dwarf_w23_mips, dwarf_w23_mips,
264                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
265     DEFINE_MSA(w24, nullptr, dwarf_w24_mips, dwarf_w24_mips,
266                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
267     DEFINE_MSA(w25, nullptr, dwarf_w25_mips, dwarf_w25_mips,
268                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
269     DEFINE_MSA(w26, nullptr, dwarf_w26_mips, dwarf_w26_mips,
270                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
271     DEFINE_MSA(w27, nullptr, dwarf_w27_mips, dwarf_w27_mips,
272                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
273     DEFINE_MSA(w28, nullptr, dwarf_w28_mips, dwarf_w28_mips,
274                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
275     DEFINE_MSA(w29, nullptr, dwarf_w29_mips, dwarf_w29_mips,
276                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
277     DEFINE_MSA(w30, nullptr, dwarf_w30_mips, dwarf_w30_mips,
278                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
279     DEFINE_MSA(w31, nullptr, dwarf_w31_mips, dwarf_w31_mips,
280                LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
281     DEFINE_MSA_INFO(mcsr, nullptr, dwarf_mcsr_mips, dwarf_mcsr_mips,
282                     LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
283     DEFINE_MSA_INFO(mir, nullptr, dwarf_mir_mips, dwarf_mir_mips,
284                     LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
285     DEFINE_MSA_INFO(fcsr, nullptr, dwarf_fcsr_mips, dwarf_fcsr_mips,
286                     LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
287     DEFINE_MSA_INFO(fir, nullptr, dwarf_fir_mips, dwarf_fir_mips,
288                     LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
289     DEFINE_MSA_INFO(config5, nullptr, dwarf_config5_mips, dwarf_config5_mips,
290                     LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM)};
291 
292 static_assert((sizeof(g_register_infos_mips) /
293                sizeof(g_register_infos_mips[0])) == k_num_registers_mips,
294               "g_register_infos_mips has wrong number of register infos");
295 
296 #undef GPR_OFFSET
297 #undef FPR_OFFSET
298 #undef MSA_OFFSET
299 #undef DEFINE_GPR
300 #undef DEFINE_FPR
301 #undef DEFINE_FPR_INFO
302 #undef DEFINE_MSA
303 #undef DEFINE_MSA_INFO
304 
305 #endif // DECLARE_REGISTER_INFOS_MIPS_STRUCT
306