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Move stdlib.h to common-defs.h
[deliverable/binutils-gdb.git] / gdb / mn10300-linux-tdep.c
1 /* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger.
2
3 Copyright (C) 2003-2014 Free Software Foundation, Inc.
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
9 the Free Software Foundation; either version 3 of the License, or
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
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20 #include "defs.h"
21 #include "gdbcore.h"
22 #include <string.h>
23 #include "regcache.h"
24 #include "mn10300-tdep.h"
25 #include "gdb_assert.h"
26 #include "bfd.h"
27 #include "elf-bfd.h"
28 #include "osabi.h"
29 #include "regset.h"
30 #include "solib-svr4.h"
31 #include "frame.h"
32 #include "trad-frame.h"
33 #include "tramp-frame.h"
34 #include "linux-tdep.h"
35
36 /* Transliterated from <asm-mn10300/elf.h>... */
37 #define MN10300_ELF_NGREG 28
38 #define MN10300_ELF_NFPREG 32
39
40 typedef gdb_byte mn10300_elf_greg_t[4];
41 typedef mn10300_elf_greg_t mn10300_elf_gregset_t[MN10300_ELF_NGREG];
42
43 typedef gdb_byte mn10300_elf_fpreg_t[4];
44 typedef struct
45 {
46 mn10300_elf_fpreg_t fpregs[MN10300_ELF_NFPREG];
47 gdb_byte fpcr[4];
48 } mn10300_elf_fpregset_t;
49
50 /* elf_gregset_t register indices stolen from include/asm-mn10300/ptrace.h. */
51 #define MN10300_ELF_GREGSET_T_REG_INDEX_A3 0
52 #define MN10300_ELF_GREGSET_T_REG_INDEX_A2 1
53 #define MN10300_ELF_GREGSET_T_REG_INDEX_D3 2
54 #define MN10300_ELF_GREGSET_T_REG_INDEX_D2 3
55 #define MN10300_ELF_GREGSET_T_REG_INDEX_MCVF 4
56 #define MN10300_ELF_GREGSET_T_REG_INDEX_MCRL 5
57 #define MN10300_ELF_GREGSET_T_REG_INDEX_MCRH 6
58 #define MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ 7
59 #define MN10300_ELF_GREGSET_T_REG_INDEX_E1 8
60 #define MN10300_ELF_GREGSET_T_REG_INDEX_E0 9
61 #define MN10300_ELF_GREGSET_T_REG_INDEX_E7 10
62 #define MN10300_ELF_GREGSET_T_REG_INDEX_E6 11
63 #define MN10300_ELF_GREGSET_T_REG_INDEX_E5 12
64 #define MN10300_ELF_GREGSET_T_REG_INDEX_E4 13
65 #define MN10300_ELF_GREGSET_T_REG_INDEX_E3 14
66 #define MN10300_ELF_GREGSET_T_REG_INDEX_E2 15
67 #define MN10300_ELF_GREGSET_T_REG_INDEX_SP 16
68 #define MN10300_ELF_GREGSET_T_REG_INDEX_LAR 17
69 #define MN10300_ELF_GREGSET_T_REG_INDEX_LIR 18
70 #define MN10300_ELF_GREGSET_T_REG_INDEX_MDR 19
71 #define MN10300_ELF_GREGSET_T_REG_INDEX_A1 20
72 #define MN10300_ELF_GREGSET_T_REG_INDEX_A0 21
73 #define MN10300_ELF_GREGSET_T_REG_INDEX_D1 22
74 #define MN10300_ELF_GREGSET_T_REG_INDEX_D0 23
75 #define MN10300_ELF_GREGSET_T_REG_INDEX_ORIG_D0 24
76 #define MN10300_ELF_GREGSET_T_REG_INDEX_EPSW 25
77 #define MN10300_ELF_GREGSET_T_REG_INDEX_PC 26
78
79 /* New gdbarch API for corefile registers.
80 Given a section name and size, create a struct reg object
81 with a supply_register and a collect_register method. */
82
83 /* Copy register value of REGNUM from regset to regcache.
84 If REGNUM is -1, do this for all gp registers in regset. */
85
86 static void
87 am33_supply_gregset_method (const struct regset *regset,
88 struct regcache *regcache,
89 int regnum, const void *gregs, size_t len)
90 {
91 char zerobuf[MAX_REGISTER_SIZE];
92 const mn10300_elf_greg_t *regp = (const mn10300_elf_greg_t *) gregs;
93 int i;
94
95 gdb_assert (len == sizeof (mn10300_elf_gregset_t));
96
97 switch (regnum) {
98 case E_D0_REGNUM:
99 regcache_raw_supply (regcache, E_D0_REGNUM,
100 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0));
101 break;
102 case E_D1_REGNUM:
103 regcache_raw_supply (regcache, E_D1_REGNUM,
104 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1));
105 break;
106 case E_D2_REGNUM:
107 regcache_raw_supply (regcache, E_D2_REGNUM,
108 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2));
109 break;
110 case E_D3_REGNUM:
111 regcache_raw_supply (regcache, E_D3_REGNUM,
112 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3));
113 break;
114 case E_A0_REGNUM:
115 regcache_raw_supply (regcache, E_A0_REGNUM,
116 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0));
117 break;
118 case E_A1_REGNUM:
119 regcache_raw_supply (regcache, E_A1_REGNUM,
120 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1));
121 break;
122 case E_A2_REGNUM:
123 regcache_raw_supply (regcache, E_A2_REGNUM,
124 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2));
125 break;
126 case E_A3_REGNUM:
127 regcache_raw_supply (regcache, E_A3_REGNUM,
128 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3));
129 break;
130 case E_SP_REGNUM:
131 regcache_raw_supply (regcache, E_SP_REGNUM,
132 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP));
133 break;
134 case E_PC_REGNUM:
135 regcache_raw_supply (regcache, E_PC_REGNUM,
136 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC));
137 break;
138 case E_MDR_REGNUM:
139 regcache_raw_supply (regcache, E_MDR_REGNUM,
140 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR));
141 break;
142 case E_PSW_REGNUM:
143 regcache_raw_supply (regcache, E_PSW_REGNUM,
144 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW));
145 break;
146 case E_LIR_REGNUM:
147 regcache_raw_supply (regcache, E_LIR_REGNUM,
148 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR));
149 break;
150 case E_LAR_REGNUM:
151 regcache_raw_supply (regcache, E_LAR_REGNUM,
152 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR));
153 break;
154 case E_MDRQ_REGNUM:
155 regcache_raw_supply (regcache, E_MDRQ_REGNUM,
156 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ));
157 break;
158 case E_E0_REGNUM:
159 regcache_raw_supply (regcache, E_E0_REGNUM,
160 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0));
161 break;
162 case E_E1_REGNUM:
163 regcache_raw_supply (regcache, E_E1_REGNUM,
164 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1));
165 break;
166 case E_E2_REGNUM:
167 regcache_raw_supply (regcache, E_E2_REGNUM,
168 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2));
169 break;
170 case E_E3_REGNUM:
171 regcache_raw_supply (regcache, E_E3_REGNUM,
172 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3));
173 break;
174 case E_E4_REGNUM:
175 regcache_raw_supply (regcache, E_E4_REGNUM,
176 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4));
177 break;
178 case E_E5_REGNUM:
179 regcache_raw_supply (regcache, E_E5_REGNUM,
180 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5));
181 break;
182 case E_E6_REGNUM:
183 regcache_raw_supply (regcache, E_E6_REGNUM,
184 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6));
185 break;
186 case E_E7_REGNUM:
187 regcache_raw_supply (regcache, E_E7_REGNUM,
188 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7));
189 break;
190
191 /* ssp, msp, and usp are inaccessible. */
192 case E_E8_REGNUM:
193 memset (zerobuf, 0, MAX_REGISTER_SIZE);
194 regcache_raw_supply (regcache, E_E8_REGNUM, zerobuf);
195 break;
196 case E_E9_REGNUM:
197 memset (zerobuf, 0, MAX_REGISTER_SIZE);
198 regcache_raw_supply (regcache, E_E9_REGNUM, zerobuf);
199 break;
200 case E_E10_REGNUM:
201 memset (zerobuf, 0, MAX_REGISTER_SIZE);
202 regcache_raw_supply (regcache, E_E10_REGNUM, zerobuf);
203
204 break;
205 case E_MCRH_REGNUM:
206 regcache_raw_supply (regcache, E_MCRH_REGNUM,
207 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH));
208 break;
209 case E_MCRL_REGNUM:
210 regcache_raw_supply (regcache, E_MCRL_REGNUM,
211 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL));
212 break;
213 case E_MCVF_REGNUM:
214 regcache_raw_supply (regcache, E_MCVF_REGNUM,
215 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF));
216 break;
217 case E_FPCR_REGNUM:
218 /* FPCR is numbered among the GP regs, but handled as an FP reg.
219 Do nothing. */
220 break;
221 case E_FPCR_REGNUM + 1:
222 /* The two unused registers beyond fpcr are inaccessible. */
223 memset (zerobuf, 0, MAX_REGISTER_SIZE);
224 regcache_raw_supply (regcache, E_FPCR_REGNUM + 1, zerobuf);
225 break;
226 case E_FPCR_REGNUM + 2:
227 memset (zerobuf, 0, MAX_REGISTER_SIZE);
228 regcache_raw_supply (regcache, E_FPCR_REGNUM + 2, zerobuf);
229 break;
230 default: /* An error, obviously, but should we error out? */
231 break;
232 case -1:
233 for (i = 0; i < MN10300_ELF_NGREG; i++)
234 am33_supply_gregset_method (regset, regcache, i, gregs, len);
235 break;
236 }
237 return;
238 }
239
240 /* Copy fp register value of REGNUM from regset to regcache.
241 If REGNUM is -1, do this for all fp registers in regset. */
242
243 static void
244 am33_supply_fpregset_method (const struct regset *regset,
245 struct regcache *regcache,
246 int regnum, const void *fpregs, size_t len)
247 {
248 const mn10300_elf_fpregset_t *fpregset = fpregs;
249
250 gdb_assert (len == sizeof (mn10300_elf_fpregset_t));
251
252 if (regnum == -1)
253 {
254 int i;
255
256 for (i = 0; i < MN10300_ELF_NFPREG; i++)
257 am33_supply_fpregset_method (regset, regcache,
258 E_FS0_REGNUM + i, fpregs, len);
259 am33_supply_fpregset_method (regset, regcache,
260 E_FPCR_REGNUM, fpregs, len);
261 }
262 else if (regnum == E_FPCR_REGNUM)
263 regcache_raw_supply (regcache, E_FPCR_REGNUM,
264 &fpregset->fpcr);
265 else if (E_FS0_REGNUM <= regnum
266 && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG)
267 regcache_raw_supply (regcache, regnum,
268 &fpregset->fpregs[regnum - E_FS0_REGNUM]);
269
270 return;
271 }
272
273 /* Copy register values from regcache to regset. */
274
275 static void
276 am33_collect_gregset_method (const struct regset *regset,
277 const struct regcache *regcache,
278 int regnum, void *gregs, size_t len)
279 {
280 mn10300_elf_gregset_t *regp = gregs;
281 int i;
282
283 gdb_assert (len == sizeof (mn10300_elf_gregset_t));
284
285 switch (regnum) {
286 case E_D0_REGNUM:
287 regcache_raw_collect (regcache, E_D0_REGNUM,
288 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0));
289 break;
290 case E_D1_REGNUM:
291 regcache_raw_collect (regcache, E_D1_REGNUM,
292 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1));
293 break;
294 case E_D2_REGNUM:
295 regcache_raw_collect (regcache, E_D2_REGNUM,
296 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2));
297 break;
298 case E_D3_REGNUM:
299 regcache_raw_collect (regcache, E_D3_REGNUM,
300 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3));
301 break;
302 case E_A0_REGNUM:
303 regcache_raw_collect (regcache, E_A0_REGNUM,
304 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0));
305 break;
306 case E_A1_REGNUM:
307 regcache_raw_collect (regcache, E_A1_REGNUM,
308 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1));
309 break;
310 case E_A2_REGNUM:
311 regcache_raw_collect (regcache, E_A2_REGNUM,
312 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2));
313 break;
314 case E_A3_REGNUM:
315 regcache_raw_collect (regcache, E_A3_REGNUM,
316 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3));
317 break;
318 case E_SP_REGNUM:
319 regcache_raw_collect (regcache, E_SP_REGNUM,
320 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP));
321 break;
322 case E_PC_REGNUM:
323 regcache_raw_collect (regcache, E_PC_REGNUM,
324 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC));
325 break;
326 case E_MDR_REGNUM:
327 regcache_raw_collect (regcache, E_MDR_REGNUM,
328 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR));
329 break;
330 case E_PSW_REGNUM:
331 regcache_raw_collect (regcache, E_PSW_REGNUM,
332 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW));
333 break;
334 case E_LIR_REGNUM:
335 regcache_raw_collect (regcache, E_LIR_REGNUM,
336 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR));
337 break;
338 case E_LAR_REGNUM:
339 regcache_raw_collect (regcache, E_LAR_REGNUM,
340 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR));
341 break;
342 case E_MDRQ_REGNUM:
343 regcache_raw_collect (regcache, E_MDRQ_REGNUM,
344 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ));
345 break;
346 case E_E0_REGNUM:
347 regcache_raw_collect (regcache, E_E0_REGNUM,
348 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0));
349 break;
350 case E_E1_REGNUM:
351 regcache_raw_collect (regcache, E_E1_REGNUM,
352 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1));
353 break;
354 case E_E2_REGNUM:
355 regcache_raw_collect (regcache, E_E2_REGNUM,
356 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2));
357 break;
358 case E_E3_REGNUM:
359 regcache_raw_collect (regcache, E_E3_REGNUM,
360 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3));
361 break;
362 case E_E4_REGNUM:
363 regcache_raw_collect (regcache, E_E4_REGNUM,
364 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4));
365 break;
366 case E_E5_REGNUM:
367 regcache_raw_collect (regcache, E_E5_REGNUM,
368 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5));
369 break;
370 case E_E6_REGNUM:
371 regcache_raw_collect (regcache, E_E6_REGNUM,
372 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6));
373 break;
374 case E_E7_REGNUM:
375 regcache_raw_collect (regcache, E_E7_REGNUM,
376 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7));
377 break;
378
379 /* ssp, msp, and usp are inaccessible. */
380 case E_E8_REGNUM:
381 /* The gregset struct has noplace to put this: do nothing. */
382 break;
383 case E_E9_REGNUM:
384 /* The gregset struct has noplace to put this: do nothing. */
385 break;
386 case E_E10_REGNUM:
387 /* The gregset struct has noplace to put this: do nothing. */
388 break;
389 case E_MCRH_REGNUM:
390 regcache_raw_collect (regcache, E_MCRH_REGNUM,
391 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH));
392 break;
393 case E_MCRL_REGNUM:
394 regcache_raw_collect (regcache, E_MCRL_REGNUM,
395 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL));
396 break;
397 case E_MCVF_REGNUM:
398 regcache_raw_collect (regcache, E_MCVF_REGNUM,
399 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF));
400 break;
401 case E_FPCR_REGNUM:
402 /* FPCR is numbered among the GP regs, but handled as an FP reg.
403 Do nothing. */
404 break;
405 case E_FPCR_REGNUM + 1:
406 /* The gregset struct has noplace to put this: do nothing. */
407 break;
408 case E_FPCR_REGNUM + 2:
409 /* The gregset struct has noplace to put this: do nothing. */
410 break;
411 default: /* An error, obviously, but should we error out? */
412 break;
413 case -1:
414 for (i = 0; i < MN10300_ELF_NGREG; i++)
415 am33_collect_gregset_method (regset, regcache, i, gregs, len);
416 break;
417 }
418 return;
419 }
420
421 /* Copy fp register values from regcache to regset. */
422
423 static void
424 am33_collect_fpregset_method (const struct regset *regset,
425 const struct regcache *regcache,
426 int regnum, void *fpregs, size_t len)
427 {
428 mn10300_elf_fpregset_t *fpregset = fpregs;
429
430 gdb_assert (len == sizeof (mn10300_elf_fpregset_t));
431
432 if (regnum == -1)
433 {
434 int i;
435 for (i = 0; i < MN10300_ELF_NFPREG; i++)
436 am33_collect_fpregset_method (regset, regcache, E_FS0_REGNUM + i,
437 fpregs, len);
438 am33_collect_fpregset_method (regset, regcache,
439 E_FPCR_REGNUM, fpregs, len);
440 }
441 else if (regnum == E_FPCR_REGNUM)
442 regcache_raw_collect (regcache, E_FPCR_REGNUM,
443 &fpregset->fpcr);
444 else if (E_FS0_REGNUM <= regnum
445 && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG)
446 regcache_raw_collect (regcache, regnum,
447 &fpregset->fpregs[regnum - E_FS0_REGNUM]);
448
449 return;
450 }
451
452 static const struct regset am33_gregset =
453 {
454 NULL, am33_supply_gregset_method, am33_collect_gregset_method
455 };
456
457 static const struct regset am33_fpregset =
458 {
459 NULL, am33_supply_fpregset_method, am33_collect_fpregset_method
460 };
461
462 /* Create a struct regset from a corefile register section. */
463
464 static const struct regset *
465 am33_regset_from_core_section (struct gdbarch *gdbarch,
466 const char *sect_name,
467 size_t sect_size)
468 {
469 if (sect_size == sizeof (mn10300_elf_fpregset_t))
470 return &am33_fpregset;
471 else
472 return &am33_gregset;
473 }
474 \f
475 static void
476 am33_linux_sigframe_cache_init (const struct tramp_frame *self,
477 struct frame_info *this_frame,
478 struct trad_frame_cache *this_cache,
479 CORE_ADDR func);
480
481 static const struct tramp_frame am33_linux_sigframe = {
482 SIGTRAMP_FRAME,
483 1,
484 {
485 /* mov 119,d0 */
486 { 0x2c, -1 },
487 { 0x77, -1 },
488 { 0x00, -1 },
489 /* syscall 0 */
490 { 0xf0, -1 },
491 { 0xe0, -1 },
492 { TRAMP_SENTINEL_INSN, -1 }
493 },
494 am33_linux_sigframe_cache_init
495 };
496
497 static const struct tramp_frame am33_linux_rt_sigframe = {
498 SIGTRAMP_FRAME,
499 1,
500 {
501 /* mov 173,d0 */
502 { 0x2c, -1 },
503 { 0xad, -1 },
504 { 0x00, -1 },
505 /* syscall 0 */
506 { 0xf0, -1 },
507 { 0xe0, -1 },
508 { TRAMP_SENTINEL_INSN, -1 }
509 },
510 am33_linux_sigframe_cache_init
511 };
512
513 /* Relevant struct definitions for signal handling...
514
515 From arch/mn10300/kernel/sigframe.h:
516
517 struct sigframe
518 {
519 void (*pretcode)(void);
520 int sig;
521 struct sigcontext *psc;
522 struct sigcontext sc;
523 struct fpucontext fpuctx;
524 unsigned long extramask[_NSIG_WORDS-1];
525 char retcode[8];
526 };
527
528 struct rt_sigframe
529 {
530 void (*pretcode)(void);
531 int sig;
532 struct siginfo *pinfo;
533 void *puc;
534 struct siginfo info;
535 struct ucontext uc;
536 struct fpucontext fpuctx;
537 char retcode[8];
538 };
539
540 From include/asm-mn10300/ucontext.h:
541
542 struct ucontext {
543 unsigned long uc_flags;
544 struct ucontext *uc_link;
545 stack_t uc_stack;
546 struct sigcontext uc_mcontext;
547 sigset_t uc_sigmask;
548 };
549
550 From include/asm-mn10300/sigcontext.h:
551
552 struct fpucontext {
553 unsigned long fs[32];
554 unsigned long fpcr;
555 };
556
557 struct sigcontext {
558 unsigned long d0;
559 unsigned long d1;
560 unsigned long d2;
561 unsigned long d3;
562 unsigned long a0;
563 unsigned long a1;
564 unsigned long a2;
565 unsigned long a3;
566 unsigned long e0;
567 unsigned long e1;
568 unsigned long e2;
569 unsigned long e3;
570 unsigned long e4;
571 unsigned long e5;
572 unsigned long e6;
573 unsigned long e7;
574 unsigned long lar;
575 unsigned long lir;
576 unsigned long mdr;
577 unsigned long mcvf;
578 unsigned long mcrl;
579 unsigned long mcrh;
580 unsigned long mdrq;
581 unsigned long sp;
582 unsigned long epsw;
583 unsigned long pc;
584 struct fpucontext *fpucontext;
585 unsigned long oldmask;
586 }; */
587
588
589 #define AM33_SIGCONTEXT_D0 0
590 #define AM33_SIGCONTEXT_D1 4
591 #define AM33_SIGCONTEXT_D2 8
592 #define AM33_SIGCONTEXT_D3 12
593 #define AM33_SIGCONTEXT_A0 16
594 #define AM33_SIGCONTEXT_A1 20
595 #define AM33_SIGCONTEXT_A2 24
596 #define AM33_SIGCONTEXT_A3 28
597 #define AM33_SIGCONTEXT_E0 32
598 #define AM33_SIGCONTEXT_E1 36
599 #define AM33_SIGCONTEXT_E2 40
600 #define AM33_SIGCONTEXT_E3 44
601 #define AM33_SIGCONTEXT_E4 48
602 #define AM33_SIGCONTEXT_E5 52
603 #define AM33_SIGCONTEXT_E6 56
604 #define AM33_SIGCONTEXT_E7 60
605 #define AM33_SIGCONTEXT_LAR 64
606 #define AM33_SIGCONTEXT_LIR 68
607 #define AM33_SIGCONTEXT_MDR 72
608 #define AM33_SIGCONTEXT_MCVF 76
609 #define AM33_SIGCONTEXT_MCRL 80
610 #define AM33_SIGCONTEXT_MCRH 84
611 #define AM33_SIGCONTEXT_MDRQ 88
612 #define AM33_SIGCONTEXT_SP 92
613 #define AM33_SIGCONTEXT_EPSW 96
614 #define AM33_SIGCONTEXT_PC 100
615 #define AM33_SIGCONTEXT_FPUCONTEXT 104
616
617
618 static void
619 am33_linux_sigframe_cache_init (const struct tramp_frame *self,
620 struct frame_info *this_frame,
621 struct trad_frame_cache *this_cache,
622 CORE_ADDR func)
623 {
624 CORE_ADDR sc_base, fpubase;
625 int i;
626
627 sc_base = get_frame_register_unsigned (this_frame, E_SP_REGNUM);
628 if (self == &am33_linux_sigframe)
629 {
630 sc_base += 8;
631 sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4);
632 }
633 else
634 {
635 sc_base += 12;
636 sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4);
637 sc_base += 20;
638 }
639
640 trad_frame_set_reg_addr (this_cache, E_D0_REGNUM,
641 sc_base + AM33_SIGCONTEXT_D0);
642 trad_frame_set_reg_addr (this_cache, E_D1_REGNUM,
643 sc_base + AM33_SIGCONTEXT_D1);
644 trad_frame_set_reg_addr (this_cache, E_D2_REGNUM,
645 sc_base + AM33_SIGCONTEXT_D2);
646 trad_frame_set_reg_addr (this_cache, E_D3_REGNUM,
647 sc_base + AM33_SIGCONTEXT_D3);
648
649 trad_frame_set_reg_addr (this_cache, E_A0_REGNUM,
650 sc_base + AM33_SIGCONTEXT_A0);
651 trad_frame_set_reg_addr (this_cache, E_A1_REGNUM,
652 sc_base + AM33_SIGCONTEXT_A1);
653 trad_frame_set_reg_addr (this_cache, E_A2_REGNUM,
654 sc_base + AM33_SIGCONTEXT_A2);
655 trad_frame_set_reg_addr (this_cache, E_A3_REGNUM,
656 sc_base + AM33_SIGCONTEXT_A3);
657
658 trad_frame_set_reg_addr (this_cache, E_E0_REGNUM,
659 sc_base + AM33_SIGCONTEXT_E0);
660 trad_frame_set_reg_addr (this_cache, E_E1_REGNUM,
661 sc_base + AM33_SIGCONTEXT_E1);
662 trad_frame_set_reg_addr (this_cache, E_E2_REGNUM,
663 sc_base + AM33_SIGCONTEXT_E2);
664 trad_frame_set_reg_addr (this_cache, E_E3_REGNUM,
665 sc_base + AM33_SIGCONTEXT_E3);
666 trad_frame_set_reg_addr (this_cache, E_E4_REGNUM,
667 sc_base + AM33_SIGCONTEXT_E4);
668 trad_frame_set_reg_addr (this_cache, E_E5_REGNUM,
669 sc_base + AM33_SIGCONTEXT_E5);
670 trad_frame_set_reg_addr (this_cache, E_E6_REGNUM,
671 sc_base + AM33_SIGCONTEXT_E6);
672 trad_frame_set_reg_addr (this_cache, E_E7_REGNUM,
673 sc_base + AM33_SIGCONTEXT_E7);
674
675 trad_frame_set_reg_addr (this_cache, E_LAR_REGNUM,
676 sc_base + AM33_SIGCONTEXT_LAR);
677 trad_frame_set_reg_addr (this_cache, E_LIR_REGNUM,
678 sc_base + AM33_SIGCONTEXT_LIR);
679 trad_frame_set_reg_addr (this_cache, E_MDR_REGNUM,
680 sc_base + AM33_SIGCONTEXT_MDR);
681 trad_frame_set_reg_addr (this_cache, E_MCVF_REGNUM,
682 sc_base + AM33_SIGCONTEXT_MCVF);
683 trad_frame_set_reg_addr (this_cache, E_MCRL_REGNUM,
684 sc_base + AM33_SIGCONTEXT_MCRL);
685 trad_frame_set_reg_addr (this_cache, E_MDRQ_REGNUM,
686 sc_base + AM33_SIGCONTEXT_MDRQ);
687
688 trad_frame_set_reg_addr (this_cache, E_SP_REGNUM,
689 sc_base + AM33_SIGCONTEXT_SP);
690 trad_frame_set_reg_addr (this_cache, E_PSW_REGNUM,
691 sc_base + AM33_SIGCONTEXT_EPSW);
692 trad_frame_set_reg_addr (this_cache, E_PC_REGNUM,
693 sc_base + AM33_SIGCONTEXT_PC);
694
695 fpubase = get_frame_memory_unsigned (this_frame,
696 sc_base + AM33_SIGCONTEXT_FPUCONTEXT,
697 4);
698 if (fpubase)
699 {
700 for (i = 0; i < 32; i++)
701 {
702 trad_frame_set_reg_addr (this_cache, E_FS0_REGNUM + i,
703 fpubase + 4 * i);
704 }
705 trad_frame_set_reg_addr (this_cache, E_FPCR_REGNUM, fpubase + 4 * 32);
706 }
707
708 trad_frame_set_id (this_cache, frame_id_build (sc_base, func));
709 }
710 \f
711 /* AM33 GNU/Linux osabi has been recognized.
712 Now's our chance to register our corefile handling. */
713
714 static void
715 am33_linux_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
716 {
717 linux_init_abi (info, gdbarch);
718
719 set_gdbarch_regset_from_core_section (gdbarch,
720 am33_regset_from_core_section);
721 set_solib_svr4_fetch_link_map_offsets
722 (gdbarch, svr4_ilp32_fetch_link_map_offsets);
723
724 tramp_frame_prepend_unwinder (gdbarch, &am33_linux_sigframe);
725 tramp_frame_prepend_unwinder (gdbarch, &am33_linux_rt_sigframe);
726 }
727
728 /* Provide a prototype to silence -Wmissing-prototypes. */
729 extern initialize_file_ftype _initialize_mn10300_linux_tdep;
730
731 void
732 _initialize_mn10300_linux_tdep (void)
733 {
734 gdbarch_register_osabi (bfd_arch_mn10300, 0,
735 GDB_OSABI_LINUX, am33_linux_init_osabi);
736 }
737
GDB Binutils - Deliverables
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