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611889b1 | 1 | /* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger. |
155bd5d1 | 2 | |
61baf725 | 3 | Copyright (C) 2003-2017 Free Software Foundation, Inc. |
611889b1 KB |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
611889b1 KB |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
611889b1 KB |
19 | |
20 | #include "defs.h" | |
21 | #include "gdbcore.h" | |
611889b1 KB |
22 | #include "regcache.h" |
23 | #include "mn10300-tdep.h" | |
611889b1 KB |
24 | #include "bfd.h" |
25 | #include "elf-bfd.h" | |
26 | #include "osabi.h" | |
27 | #include "regset.h" | |
696cc4a6 | 28 | #include "solib-svr4.h" |
f9ec92b6 KB |
29 | #include "frame.h" |
30 | #include "trad-frame.h" | |
31 | #include "tramp-frame.h" | |
a5ee0f0c | 32 | #include "linux-tdep.h" |
611889b1 | 33 | |
611889b1 KB |
34 | /* Transliterated from <asm-mn10300/elf.h>... */ |
35 | #define MN10300_ELF_NGREG 28 | |
36 | #define MN10300_ELF_NFPREG 32 | |
37 | ||
38 | typedef gdb_byte mn10300_elf_greg_t[4]; | |
39 | typedef mn10300_elf_greg_t mn10300_elf_gregset_t[MN10300_ELF_NGREG]; | |
40 | ||
41 | typedef gdb_byte mn10300_elf_fpreg_t[4]; | |
42 | typedef struct | |
43 | { | |
44 | mn10300_elf_fpreg_t fpregs[MN10300_ELF_NFPREG]; | |
45 | gdb_byte fpcr[4]; | |
46 | } mn10300_elf_fpregset_t; | |
47 | ||
48 | /* elf_gregset_t register indices stolen from include/asm-mn10300/ptrace.h. */ | |
49 | #define MN10300_ELF_GREGSET_T_REG_INDEX_A3 0 | |
50 | #define MN10300_ELF_GREGSET_T_REG_INDEX_A2 1 | |
51 | #define MN10300_ELF_GREGSET_T_REG_INDEX_D3 2 | |
52 | #define MN10300_ELF_GREGSET_T_REG_INDEX_D2 3 | |
53 | #define MN10300_ELF_GREGSET_T_REG_INDEX_MCVF 4 | |
54 | #define MN10300_ELF_GREGSET_T_REG_INDEX_MCRL 5 | |
55 | #define MN10300_ELF_GREGSET_T_REG_INDEX_MCRH 6 | |
56 | #define MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ 7 | |
57 | #define MN10300_ELF_GREGSET_T_REG_INDEX_E1 8 | |
58 | #define MN10300_ELF_GREGSET_T_REG_INDEX_E0 9 | |
59 | #define MN10300_ELF_GREGSET_T_REG_INDEX_E7 10 | |
60 | #define MN10300_ELF_GREGSET_T_REG_INDEX_E6 11 | |
61 | #define MN10300_ELF_GREGSET_T_REG_INDEX_E5 12 | |
62 | #define MN10300_ELF_GREGSET_T_REG_INDEX_E4 13 | |
63 | #define MN10300_ELF_GREGSET_T_REG_INDEX_E3 14 | |
64 | #define MN10300_ELF_GREGSET_T_REG_INDEX_E2 15 | |
65 | #define MN10300_ELF_GREGSET_T_REG_INDEX_SP 16 | |
66 | #define MN10300_ELF_GREGSET_T_REG_INDEX_LAR 17 | |
67 | #define MN10300_ELF_GREGSET_T_REG_INDEX_LIR 18 | |
68 | #define MN10300_ELF_GREGSET_T_REG_INDEX_MDR 19 | |
69 | #define MN10300_ELF_GREGSET_T_REG_INDEX_A1 20 | |
70 | #define MN10300_ELF_GREGSET_T_REG_INDEX_A0 21 | |
71 | #define MN10300_ELF_GREGSET_T_REG_INDEX_D1 22 | |
72 | #define MN10300_ELF_GREGSET_T_REG_INDEX_D0 23 | |
73 | #define MN10300_ELF_GREGSET_T_REG_INDEX_ORIG_D0 24 | |
74 | #define MN10300_ELF_GREGSET_T_REG_INDEX_EPSW 25 | |
75 | #define MN10300_ELF_GREGSET_T_REG_INDEX_PC 26 | |
76 | ||
77 | /* New gdbarch API for corefile registers. | |
78 | Given a section name and size, create a struct reg object | |
79 | with a supply_register and a collect_register method. */ | |
80 | ||
025bb325 | 81 | /* Copy register value of REGNUM from regset to regcache. |
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82 | If REGNUM is -1, do this for all gp registers in regset. */ |
83 | ||
84 | static void | |
85 | am33_supply_gregset_method (const struct regset *regset, | |
86 | struct regcache *regcache, | |
87 | int regnum, const void *gregs, size_t len) | |
88 | { | |
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89 | const mn10300_elf_greg_t *regp = (const mn10300_elf_greg_t *) gregs; |
90 | int i; | |
91 | ||
1528345d | 92 | gdb_assert (len >= sizeof (mn10300_elf_gregset_t)); |
611889b1 KB |
93 | |
94 | switch (regnum) { | |
95 | case E_D0_REGNUM: | |
96 | regcache_raw_supply (regcache, E_D0_REGNUM, | |
97 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0)); | |
98 | break; | |
99 | case E_D1_REGNUM: | |
100 | regcache_raw_supply (regcache, E_D1_REGNUM, | |
101 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1)); | |
102 | break; | |
103 | case E_D2_REGNUM: | |
104 | regcache_raw_supply (regcache, E_D2_REGNUM, | |
105 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2)); | |
106 | break; | |
107 | case E_D3_REGNUM: | |
108 | regcache_raw_supply (regcache, E_D3_REGNUM, | |
109 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3)); | |
110 | break; | |
111 | case E_A0_REGNUM: | |
112 | regcache_raw_supply (regcache, E_A0_REGNUM, | |
113 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0)); | |
114 | break; | |
115 | case E_A1_REGNUM: | |
116 | regcache_raw_supply (regcache, E_A1_REGNUM, | |
117 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1)); | |
118 | break; | |
119 | case E_A2_REGNUM: | |
120 | regcache_raw_supply (regcache, E_A2_REGNUM, | |
121 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2)); | |
122 | break; | |
123 | case E_A3_REGNUM: | |
124 | regcache_raw_supply (regcache, E_A3_REGNUM, | |
125 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3)); | |
126 | break; | |
127 | case E_SP_REGNUM: | |
128 | regcache_raw_supply (regcache, E_SP_REGNUM, | |
129 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP)); | |
130 | break; | |
131 | case E_PC_REGNUM: | |
132 | regcache_raw_supply (regcache, E_PC_REGNUM, | |
133 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC)); | |
134 | break; | |
135 | case E_MDR_REGNUM: | |
136 | regcache_raw_supply (regcache, E_MDR_REGNUM, | |
137 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR)); | |
138 | break; | |
139 | case E_PSW_REGNUM: | |
140 | regcache_raw_supply (regcache, E_PSW_REGNUM, | |
141 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW)); | |
142 | break; | |
143 | case E_LIR_REGNUM: | |
144 | regcache_raw_supply (regcache, E_LIR_REGNUM, | |
145 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR)); | |
146 | break; | |
147 | case E_LAR_REGNUM: | |
148 | regcache_raw_supply (regcache, E_LAR_REGNUM, | |
149 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR)); | |
150 | break; | |
151 | case E_MDRQ_REGNUM: | |
152 | regcache_raw_supply (regcache, E_MDRQ_REGNUM, | |
153 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ)); | |
154 | break; | |
155 | case E_E0_REGNUM: | |
156 | regcache_raw_supply (regcache, E_E0_REGNUM, | |
157 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0)); | |
158 | break; | |
159 | case E_E1_REGNUM: | |
160 | regcache_raw_supply (regcache, E_E1_REGNUM, | |
161 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1)); | |
162 | break; | |
163 | case E_E2_REGNUM: | |
164 | regcache_raw_supply (regcache, E_E2_REGNUM, | |
165 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2)); | |
166 | break; | |
167 | case E_E3_REGNUM: | |
168 | regcache_raw_supply (regcache, E_E3_REGNUM, | |
169 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3)); | |
170 | break; | |
171 | case E_E4_REGNUM: | |
172 | regcache_raw_supply (regcache, E_E4_REGNUM, | |
173 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4)); | |
174 | break; | |
175 | case E_E5_REGNUM: | |
176 | regcache_raw_supply (regcache, E_E5_REGNUM, | |
177 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5)); | |
178 | break; | |
179 | case E_E6_REGNUM: | |
180 | regcache_raw_supply (regcache, E_E6_REGNUM, | |
181 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6)); | |
182 | break; | |
183 | case E_E7_REGNUM: | |
184 | regcache_raw_supply (regcache, E_E7_REGNUM, | |
185 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7)); | |
186 | break; | |
187 | ||
188 | /* ssp, msp, and usp are inaccessible. */ | |
189 | case E_E8_REGNUM: | |
146e6c5c | 190 | regcache->raw_supply_zeroed (E_E8_REGNUM); |
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191 | break; |
192 | case E_E9_REGNUM: | |
146e6c5c | 193 | regcache->raw_supply_zeroed (E_E9_REGNUM); |
611889b1 KB |
194 | break; |
195 | case E_E10_REGNUM: | |
146e6c5c | 196 | regcache->raw_supply_zeroed (E_E10_REGNUM); |
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197 | break; |
198 | case E_MCRH_REGNUM: | |
199 | regcache_raw_supply (regcache, E_MCRH_REGNUM, | |
200 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH)); | |
201 | break; | |
202 | case E_MCRL_REGNUM: | |
203 | regcache_raw_supply (regcache, E_MCRL_REGNUM, | |
204 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL)); | |
205 | break; | |
206 | case E_MCVF_REGNUM: | |
207 | regcache_raw_supply (regcache, E_MCVF_REGNUM, | |
208 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF)); | |
209 | break; | |
210 | case E_FPCR_REGNUM: | |
211 | /* FPCR is numbered among the GP regs, but handled as an FP reg. | |
212 | Do nothing. */ | |
213 | break; | |
214 | case E_FPCR_REGNUM + 1: | |
215 | /* The two unused registers beyond fpcr are inaccessible. */ | |
146e6c5c | 216 | regcache->raw_supply_zeroed (E_FPCR_REGNUM + 1); |
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217 | break; |
218 | case E_FPCR_REGNUM + 2: | |
146e6c5c | 219 | regcache->raw_supply_zeroed (E_FPCR_REGNUM + 2); |
611889b1 KB |
220 | break; |
221 | default: /* An error, obviously, but should we error out? */ | |
222 | break; | |
223 | case -1: | |
224 | for (i = 0; i < MN10300_ELF_NGREG; i++) | |
225 | am33_supply_gregset_method (regset, regcache, i, gregs, len); | |
226 | break; | |
227 | } | |
228 | return; | |
229 | } | |
230 | ||
025bb325 MS |
231 | /* Copy fp register value of REGNUM from regset to regcache. |
232 | If REGNUM is -1, do this for all fp registers in regset. */ | |
611889b1 KB |
233 | |
234 | static void | |
235 | am33_supply_fpregset_method (const struct regset *regset, | |
236 | struct regcache *regcache, | |
237 | int regnum, const void *fpregs, size_t len) | |
238 | { | |
19ba03f4 SM |
239 | const mn10300_elf_fpregset_t *fpregset |
240 | = (const mn10300_elf_fpregset_t *) fpregs; | |
611889b1 | 241 | |
1528345d | 242 | gdb_assert (len >= sizeof (mn10300_elf_fpregset_t)); |
611889b1 KB |
243 | |
244 | if (regnum == -1) | |
245 | { | |
246 | int i; | |
247 | ||
248 | for (i = 0; i < MN10300_ELF_NFPREG; i++) | |
249 | am33_supply_fpregset_method (regset, regcache, | |
250 | E_FS0_REGNUM + i, fpregs, len); | |
251 | am33_supply_fpregset_method (regset, regcache, | |
252 | E_FPCR_REGNUM, fpregs, len); | |
253 | } | |
254 | else if (regnum == E_FPCR_REGNUM) | |
9c9acae0 | 255 | regcache_raw_supply (regcache, E_FPCR_REGNUM, |
611889b1 | 256 | &fpregset->fpcr); |
025bb325 MS |
257 | else if (E_FS0_REGNUM <= regnum |
258 | && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG) | |
9c9acae0 | 259 | regcache_raw_supply (regcache, regnum, |
611889b1 KB |
260 | &fpregset->fpregs[regnum - E_FS0_REGNUM]); |
261 | ||
262 | return; | |
263 | } | |
264 | ||
265 | /* Copy register values from regcache to regset. */ | |
266 | ||
267 | static void | |
268 | am33_collect_gregset_method (const struct regset *regset, | |
269 | const struct regcache *regcache, | |
270 | int regnum, void *gregs, size_t len) | |
271 | { | |
19ba03f4 | 272 | mn10300_elf_gregset_t *regp = (gdb_byte (*)[28][4]) gregs; |
611889b1 KB |
273 | int i; |
274 | ||
1528345d | 275 | gdb_assert (len >= sizeof (mn10300_elf_gregset_t)); |
611889b1 KB |
276 | |
277 | switch (regnum) { | |
278 | case E_D0_REGNUM: | |
279 | regcache_raw_collect (regcache, E_D0_REGNUM, | |
280 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0)); | |
281 | break; | |
282 | case E_D1_REGNUM: | |
283 | regcache_raw_collect (regcache, E_D1_REGNUM, | |
284 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1)); | |
285 | break; | |
286 | case E_D2_REGNUM: | |
287 | regcache_raw_collect (regcache, E_D2_REGNUM, | |
288 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2)); | |
289 | break; | |
290 | case E_D3_REGNUM: | |
291 | regcache_raw_collect (regcache, E_D3_REGNUM, | |
292 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3)); | |
293 | break; | |
294 | case E_A0_REGNUM: | |
295 | regcache_raw_collect (regcache, E_A0_REGNUM, | |
296 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0)); | |
297 | break; | |
298 | case E_A1_REGNUM: | |
299 | regcache_raw_collect (regcache, E_A1_REGNUM, | |
300 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1)); | |
301 | break; | |
302 | case E_A2_REGNUM: | |
303 | regcache_raw_collect (regcache, E_A2_REGNUM, | |
304 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2)); | |
305 | break; | |
306 | case E_A3_REGNUM: | |
307 | regcache_raw_collect (regcache, E_A3_REGNUM, | |
308 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3)); | |
309 | break; | |
310 | case E_SP_REGNUM: | |
311 | regcache_raw_collect (regcache, E_SP_REGNUM, | |
312 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP)); | |
313 | break; | |
314 | case E_PC_REGNUM: | |
315 | regcache_raw_collect (regcache, E_PC_REGNUM, | |
316 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC)); | |
317 | break; | |
318 | case E_MDR_REGNUM: | |
319 | regcache_raw_collect (regcache, E_MDR_REGNUM, | |
320 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR)); | |
321 | break; | |
322 | case E_PSW_REGNUM: | |
323 | regcache_raw_collect (regcache, E_PSW_REGNUM, | |
324 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW)); | |
325 | break; | |
326 | case E_LIR_REGNUM: | |
327 | regcache_raw_collect (regcache, E_LIR_REGNUM, | |
328 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR)); | |
329 | break; | |
330 | case E_LAR_REGNUM: | |
331 | regcache_raw_collect (regcache, E_LAR_REGNUM, | |
332 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR)); | |
333 | break; | |
334 | case E_MDRQ_REGNUM: | |
335 | regcache_raw_collect (regcache, E_MDRQ_REGNUM, | |
336 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ)); | |
337 | break; | |
338 | case E_E0_REGNUM: | |
339 | regcache_raw_collect (regcache, E_E0_REGNUM, | |
340 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0)); | |
341 | break; | |
342 | case E_E1_REGNUM: | |
343 | regcache_raw_collect (regcache, E_E1_REGNUM, | |
344 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1)); | |
345 | break; | |
346 | case E_E2_REGNUM: | |
347 | regcache_raw_collect (regcache, E_E2_REGNUM, | |
348 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2)); | |
349 | break; | |
350 | case E_E3_REGNUM: | |
351 | regcache_raw_collect (regcache, E_E3_REGNUM, | |
352 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3)); | |
353 | break; | |
354 | case E_E4_REGNUM: | |
355 | regcache_raw_collect (regcache, E_E4_REGNUM, | |
356 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4)); | |
357 | break; | |
358 | case E_E5_REGNUM: | |
359 | regcache_raw_collect (regcache, E_E5_REGNUM, | |
360 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5)); | |
361 | break; | |
362 | case E_E6_REGNUM: | |
363 | regcache_raw_collect (regcache, E_E6_REGNUM, | |
364 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6)); | |
365 | break; | |
366 | case E_E7_REGNUM: | |
367 | regcache_raw_collect (regcache, E_E7_REGNUM, | |
368 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7)); | |
369 | break; | |
370 | ||
371 | /* ssp, msp, and usp are inaccessible. */ | |
372 | case E_E8_REGNUM: | |
373 | /* The gregset struct has noplace to put this: do nothing. */ | |
374 | break; | |
375 | case E_E9_REGNUM: | |
376 | /* The gregset struct has noplace to put this: do nothing. */ | |
377 | break; | |
378 | case E_E10_REGNUM: | |
379 | /* The gregset struct has noplace to put this: do nothing. */ | |
380 | break; | |
381 | case E_MCRH_REGNUM: | |
382 | regcache_raw_collect (regcache, E_MCRH_REGNUM, | |
383 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH)); | |
384 | break; | |
385 | case E_MCRL_REGNUM: | |
386 | regcache_raw_collect (regcache, E_MCRL_REGNUM, | |
387 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL)); | |
388 | break; | |
389 | case E_MCVF_REGNUM: | |
390 | regcache_raw_collect (regcache, E_MCVF_REGNUM, | |
391 | (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF)); | |
392 | break; | |
393 | case E_FPCR_REGNUM: | |
394 | /* FPCR is numbered among the GP regs, but handled as an FP reg. | |
395 | Do nothing. */ | |
396 | break; | |
397 | case E_FPCR_REGNUM + 1: | |
398 | /* The gregset struct has noplace to put this: do nothing. */ | |
399 | break; | |
400 | case E_FPCR_REGNUM + 2: | |
401 | /* The gregset struct has noplace to put this: do nothing. */ | |
402 | break; | |
403 | default: /* An error, obviously, but should we error out? */ | |
404 | break; | |
405 | case -1: | |
406 | for (i = 0; i < MN10300_ELF_NGREG; i++) | |
407 | am33_collect_gregset_method (regset, regcache, i, gregs, len); | |
408 | break; | |
409 | } | |
410 | return; | |
411 | } | |
412 | ||
413 | /* Copy fp register values from regcache to regset. */ | |
414 | ||
415 | static void | |
416 | am33_collect_fpregset_method (const struct regset *regset, | |
417 | const struct regcache *regcache, | |
418 | int regnum, void *fpregs, size_t len) | |
419 | { | |
19ba03f4 | 420 | mn10300_elf_fpregset_t *fpregset = (mn10300_elf_fpregset_t *) fpregs; |
611889b1 | 421 | |
1528345d | 422 | gdb_assert (len >= sizeof (mn10300_elf_fpregset_t)); |
611889b1 KB |
423 | |
424 | if (regnum == -1) | |
425 | { | |
426 | int i; | |
427 | for (i = 0; i < MN10300_ELF_NFPREG; i++) | |
428 | am33_collect_fpregset_method (regset, regcache, E_FS0_REGNUM + i, | |
429 | fpregs, len); | |
430 | am33_collect_fpregset_method (regset, regcache, | |
431 | E_FPCR_REGNUM, fpregs, len); | |
432 | } | |
433 | else if (regnum == E_FPCR_REGNUM) | |
9c9acae0 | 434 | regcache_raw_collect (regcache, E_FPCR_REGNUM, |
611889b1 KB |
435 | &fpregset->fpcr); |
436 | else if (E_FS0_REGNUM <= regnum | |
437 | && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG) | |
9c9acae0 | 438 | regcache_raw_collect (regcache, regnum, |
611889b1 KB |
439 | &fpregset->fpregs[regnum - E_FS0_REGNUM]); |
440 | ||
441 | return; | |
442 | } | |
443 | ||
24534243 AA |
444 | static const struct regset am33_gregset = |
445 | { | |
446 | NULL, am33_supply_gregset_method, am33_collect_gregset_method | |
447 | }; | |
448 | ||
449 | static const struct regset am33_fpregset = | |
450 | { | |
451 | NULL, am33_supply_fpregset_method, am33_collect_fpregset_method | |
452 | }; | |
453 | ||
3636e608 | 454 | /* Iterate over core file register note sections. */ |
611889b1 | 455 | |
3636e608 AA |
456 | static void |
457 | am33_iterate_over_regset_sections (struct gdbarch *gdbarch, | |
458 | iterate_over_regset_sections_cb *cb, | |
459 | void *cb_data, | |
460 | const struct regcache *regcache) | |
611889b1 | 461 | { |
3636e608 AA |
462 | cb (".reg", sizeof (mn10300_elf_gregset_t), &am33_gregset, |
463 | NULL, cb_data); | |
464 | cb (".reg2", sizeof(mn10300_elf_fpregset_t), &am33_fpregset, | |
465 | NULL, cb_data); | |
611889b1 | 466 | } |
f9ec92b6 KB |
467 | \f |
468 | static void | |
469 | am33_linux_sigframe_cache_init (const struct tramp_frame *self, | |
5366653e | 470 | struct frame_info *this_frame, |
f9ec92b6 KB |
471 | struct trad_frame_cache *this_cache, |
472 | CORE_ADDR func); | |
473 | ||
474 | static const struct tramp_frame am33_linux_sigframe = { | |
475 | SIGTRAMP_FRAME, | |
476 | 1, | |
477 | { | |
478 | /* mov 119,d0 */ | |
479 | { 0x2c, -1 }, | |
480 | { 0x77, -1 }, | |
481 | { 0x00, -1 }, | |
482 | /* syscall 0 */ | |
483 | { 0xf0, -1 }, | |
484 | { 0xe0, -1 }, | |
485 | { TRAMP_SENTINEL_INSN, -1 } | |
486 | }, | |
487 | am33_linux_sigframe_cache_init | |
488 | }; | |
489 | ||
490 | static const struct tramp_frame am33_linux_rt_sigframe = { | |
491 | SIGTRAMP_FRAME, | |
492 | 1, | |
493 | { | |
494 | /* mov 173,d0 */ | |
495 | { 0x2c, -1 }, | |
496 | { 0xad, -1 }, | |
497 | { 0x00, -1 }, | |
498 | /* syscall 0 */ | |
499 | { 0xf0, -1 }, | |
500 | { 0xe0, -1 }, | |
501 | { TRAMP_SENTINEL_INSN, -1 } | |
502 | }, | |
503 | am33_linux_sigframe_cache_init | |
504 | }; | |
505 | ||
506 | /* Relevant struct definitions for signal handling... | |
507 | ||
508 | From arch/mn10300/kernel/sigframe.h: | |
509 | ||
510 | struct sigframe | |
511 | { | |
512 | void (*pretcode)(void); | |
513 | int sig; | |
e84605cd | 514 | struct sigcontext *psc; |
f9ec92b6 KB |
515 | struct sigcontext sc; |
516 | struct fpucontext fpuctx; | |
517 | unsigned long extramask[_NSIG_WORDS-1]; | |
518 | char retcode[8]; | |
519 | }; | |
520 | ||
521 | struct rt_sigframe | |
522 | { | |
523 | void (*pretcode)(void); | |
524 | int sig; | |
525 | struct siginfo *pinfo; | |
526 | void *puc; | |
527 | struct siginfo info; | |
528 | struct ucontext uc; | |
529 | struct fpucontext fpuctx; | |
530 | char retcode[8]; | |
531 | }; | |
532 | ||
533 | From include/asm-mn10300/ucontext.h: | |
534 | ||
535 | struct ucontext { | |
536 | unsigned long uc_flags; | |
537 | struct ucontext *uc_link; | |
538 | stack_t uc_stack; | |
539 | struct sigcontext uc_mcontext; | |
540 | sigset_t uc_sigmask; | |
541 | }; | |
542 | ||
543 | From include/asm-mn10300/sigcontext.h: | |
544 | ||
545 | struct fpucontext { | |
546 | unsigned long fs[32]; | |
547 | unsigned long fpcr; | |
548 | }; | |
549 | ||
550 | struct sigcontext { | |
551 | unsigned long d0; | |
552 | unsigned long d1; | |
553 | unsigned long d2; | |
554 | unsigned long d3; | |
555 | unsigned long a0; | |
556 | unsigned long a1; | |
557 | unsigned long a2; | |
558 | unsigned long a3; | |
559 | unsigned long e0; | |
560 | unsigned long e1; | |
561 | unsigned long e2; | |
562 | unsigned long e3; | |
563 | unsigned long e4; | |
564 | unsigned long e5; | |
565 | unsigned long e6; | |
566 | unsigned long e7; | |
567 | unsigned long lar; | |
568 | unsigned long lir; | |
569 | unsigned long mdr; | |
570 | unsigned long mcvf; | |
571 | unsigned long mcrl; | |
572 | unsigned long mcrh; | |
573 | unsigned long mdrq; | |
574 | unsigned long sp; | |
575 | unsigned long epsw; | |
576 | unsigned long pc; | |
577 | struct fpucontext *fpucontext; | |
578 | unsigned long oldmask; | |
579 | }; */ | |
580 | ||
581 | ||
582 | #define AM33_SIGCONTEXT_D0 0 | |
583 | #define AM33_SIGCONTEXT_D1 4 | |
584 | #define AM33_SIGCONTEXT_D2 8 | |
585 | #define AM33_SIGCONTEXT_D3 12 | |
586 | #define AM33_SIGCONTEXT_A0 16 | |
587 | #define AM33_SIGCONTEXT_A1 20 | |
588 | #define AM33_SIGCONTEXT_A2 24 | |
589 | #define AM33_SIGCONTEXT_A3 28 | |
590 | #define AM33_SIGCONTEXT_E0 32 | |
591 | #define AM33_SIGCONTEXT_E1 36 | |
592 | #define AM33_SIGCONTEXT_E2 40 | |
593 | #define AM33_SIGCONTEXT_E3 44 | |
594 | #define AM33_SIGCONTEXT_E4 48 | |
595 | #define AM33_SIGCONTEXT_E5 52 | |
596 | #define AM33_SIGCONTEXT_E6 56 | |
597 | #define AM33_SIGCONTEXT_E7 60 | |
598 | #define AM33_SIGCONTEXT_LAR 64 | |
599 | #define AM33_SIGCONTEXT_LIR 68 | |
600 | #define AM33_SIGCONTEXT_MDR 72 | |
601 | #define AM33_SIGCONTEXT_MCVF 76 | |
602 | #define AM33_SIGCONTEXT_MCRL 80 | |
603 | #define AM33_SIGCONTEXT_MCRH 84 | |
604 | #define AM33_SIGCONTEXT_MDRQ 88 | |
605 | #define AM33_SIGCONTEXT_SP 92 | |
606 | #define AM33_SIGCONTEXT_EPSW 96 | |
607 | #define AM33_SIGCONTEXT_PC 100 | |
608 | #define AM33_SIGCONTEXT_FPUCONTEXT 104 | |
609 | ||
610 | ||
611 | static void | |
612 | am33_linux_sigframe_cache_init (const struct tramp_frame *self, | |
5366653e | 613 | struct frame_info *this_frame, |
f9ec92b6 KB |
614 | struct trad_frame_cache *this_cache, |
615 | CORE_ADDR func) | |
616 | { | |
617 | CORE_ADDR sc_base, fpubase; | |
618 | int i; | |
611889b1 | 619 | |
5366653e | 620 | sc_base = get_frame_register_unsigned (this_frame, E_SP_REGNUM); |
f9ec92b6 KB |
621 | if (self == &am33_linux_sigframe) |
622 | { | |
623 | sc_base += 8; | |
5366653e | 624 | sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4); |
f9ec92b6 KB |
625 | } |
626 | else | |
627 | { | |
628 | sc_base += 12; | |
5366653e | 629 | sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4); |
f9ec92b6 KB |
630 | sc_base += 20; |
631 | } | |
632 | ||
633 | trad_frame_set_reg_addr (this_cache, E_D0_REGNUM, | |
634 | sc_base + AM33_SIGCONTEXT_D0); | |
635 | trad_frame_set_reg_addr (this_cache, E_D1_REGNUM, | |
636 | sc_base + AM33_SIGCONTEXT_D1); | |
637 | trad_frame_set_reg_addr (this_cache, E_D2_REGNUM, | |
638 | sc_base + AM33_SIGCONTEXT_D2); | |
639 | trad_frame_set_reg_addr (this_cache, E_D3_REGNUM, | |
640 | sc_base + AM33_SIGCONTEXT_D3); | |
641 | ||
642 | trad_frame_set_reg_addr (this_cache, E_A0_REGNUM, | |
643 | sc_base + AM33_SIGCONTEXT_A0); | |
644 | trad_frame_set_reg_addr (this_cache, E_A1_REGNUM, | |
645 | sc_base + AM33_SIGCONTEXT_A1); | |
646 | trad_frame_set_reg_addr (this_cache, E_A2_REGNUM, | |
647 | sc_base + AM33_SIGCONTEXT_A2); | |
648 | trad_frame_set_reg_addr (this_cache, E_A3_REGNUM, | |
649 | sc_base + AM33_SIGCONTEXT_A3); | |
650 | ||
651 | trad_frame_set_reg_addr (this_cache, E_E0_REGNUM, | |
652 | sc_base + AM33_SIGCONTEXT_E0); | |
653 | trad_frame_set_reg_addr (this_cache, E_E1_REGNUM, | |
654 | sc_base + AM33_SIGCONTEXT_E1); | |
655 | trad_frame_set_reg_addr (this_cache, E_E2_REGNUM, | |
656 | sc_base + AM33_SIGCONTEXT_E2); | |
657 | trad_frame_set_reg_addr (this_cache, E_E3_REGNUM, | |
658 | sc_base + AM33_SIGCONTEXT_E3); | |
659 | trad_frame_set_reg_addr (this_cache, E_E4_REGNUM, | |
660 | sc_base + AM33_SIGCONTEXT_E4); | |
661 | trad_frame_set_reg_addr (this_cache, E_E5_REGNUM, | |
662 | sc_base + AM33_SIGCONTEXT_E5); | |
663 | trad_frame_set_reg_addr (this_cache, E_E6_REGNUM, | |
664 | sc_base + AM33_SIGCONTEXT_E6); | |
665 | trad_frame_set_reg_addr (this_cache, E_E7_REGNUM, | |
666 | sc_base + AM33_SIGCONTEXT_E7); | |
667 | ||
668 | trad_frame_set_reg_addr (this_cache, E_LAR_REGNUM, | |
669 | sc_base + AM33_SIGCONTEXT_LAR); | |
670 | trad_frame_set_reg_addr (this_cache, E_LIR_REGNUM, | |
671 | sc_base + AM33_SIGCONTEXT_LIR); | |
672 | trad_frame_set_reg_addr (this_cache, E_MDR_REGNUM, | |
673 | sc_base + AM33_SIGCONTEXT_MDR); | |
674 | trad_frame_set_reg_addr (this_cache, E_MCVF_REGNUM, | |
675 | sc_base + AM33_SIGCONTEXT_MCVF); | |
676 | trad_frame_set_reg_addr (this_cache, E_MCRL_REGNUM, | |
677 | sc_base + AM33_SIGCONTEXT_MCRL); | |
678 | trad_frame_set_reg_addr (this_cache, E_MDRQ_REGNUM, | |
679 | sc_base + AM33_SIGCONTEXT_MDRQ); | |
680 | ||
681 | trad_frame_set_reg_addr (this_cache, E_SP_REGNUM, | |
682 | sc_base + AM33_SIGCONTEXT_SP); | |
683 | trad_frame_set_reg_addr (this_cache, E_PSW_REGNUM, | |
684 | sc_base + AM33_SIGCONTEXT_EPSW); | |
685 | trad_frame_set_reg_addr (this_cache, E_PC_REGNUM, | |
686 | sc_base + AM33_SIGCONTEXT_PC); | |
687 | ||
5366653e | 688 | fpubase = get_frame_memory_unsigned (this_frame, |
025bb325 MS |
689 | sc_base + AM33_SIGCONTEXT_FPUCONTEXT, |
690 | 4); | |
f9ec92b6 KB |
691 | if (fpubase) |
692 | { | |
693 | for (i = 0; i < 32; i++) | |
694 | { | |
695 | trad_frame_set_reg_addr (this_cache, E_FS0_REGNUM + i, | |
696 | fpubase + 4 * i); | |
697 | } | |
698 | trad_frame_set_reg_addr (this_cache, E_FPCR_REGNUM, fpubase + 4 * 32); | |
699 | } | |
700 | ||
701 | trad_frame_set_id (this_cache, frame_id_build (sc_base, func)); | |
702 | } | |
703 | \f | |
155bd5d1 | 704 | /* AM33 GNU/Linux osabi has been recognized. |
611889b1 KB |
705 | Now's our chance to register our corefile handling. */ |
706 | ||
707 | static void | |
a5ee0f0c | 708 | am33_linux_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch) |
611889b1 | 709 | { |
a5ee0f0c PA |
710 | linux_init_abi (info, gdbarch); |
711 | ||
3636e608 AA |
712 | set_gdbarch_iterate_over_regset_sections |
713 | (gdbarch, am33_iterate_over_regset_sections); | |
696cc4a6 | 714 | set_solib_svr4_fetch_link_map_offsets |
cf1f553f | 715 | (gdbarch, svr4_ilp32_fetch_link_map_offsets); |
f9ec92b6 KB |
716 | |
717 | tramp_frame_prepend_unwinder (gdbarch, &am33_linux_sigframe); | |
718 | tramp_frame_prepend_unwinder (gdbarch, &am33_linux_rt_sigframe); | |
611889b1 KB |
719 | } |
720 | ||
721 | void | |
722 | _initialize_mn10300_linux_tdep (void) | |
723 | { | |
724 | gdbarch_register_osabi (bfd_arch_mn10300, 0, | |
725 | GDB_OSABI_LINUX, am33_linux_init_osabi); | |
726 | } | |
727 |