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32178cab | 1 | /* Cache and manage the values of registers for GDB, the GNU debugger. |
3fadccb3 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1986-2014 Free Software Foundation, Inc. |
32178cab MS |
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 |
32178cab MS |
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/>. */ |
32178cab MS |
19 | |
20 | #include "defs.h" | |
32178cab MS |
21 | #include "inferior.h" |
22 | #include "target.h" | |
23 | #include "gdbarch.h" | |
705152c5 | 24 | #include "gdbcmd.h" |
4e052eda | 25 | #include "regcache.h" |
b59ff9d5 | 26 | #include "reggroups.h" |
f4c5303c | 27 | #include "observer.h" |
05d1431c | 28 | #include "exceptions.h" |
c21236dc | 29 | #include "remote.h" |
d3eaaf66 | 30 | #include "valprint.h" |
0b309272 | 31 | #include "regset.h" |
32178cab MS |
32 | |
33 | /* | |
34 | * DATA STRUCTURE | |
35 | * | |
36 | * Here is the actual register cache. | |
37 | */ | |
38 | ||
3fadccb3 | 39 | /* Per-architecture object describing the layout of a register cache. |
0df8b418 | 40 | Computed once when the architecture is created. */ |
3fadccb3 AC |
41 | |
42 | struct gdbarch_data *regcache_descr_handle; | |
43 | ||
44 | struct regcache_descr | |
45 | { | |
46 | /* The architecture this descriptor belongs to. */ | |
47 | struct gdbarch *gdbarch; | |
48 | ||
bb1db049 AC |
49 | /* The raw register cache. Each raw (or hard) register is supplied |
50 | by the target interface. The raw cache should not contain | |
51 | redundant information - if the PC is constructed from two | |
d2f0b918 | 52 | registers then those registers and not the PC lives in the raw |
bb1db049 | 53 | cache. */ |
3fadccb3 AC |
54 | int nr_raw_registers; |
55 | long sizeof_raw_registers; | |
ee99023e | 56 | long sizeof_raw_register_status; |
3fadccb3 | 57 | |
d138e37a AC |
58 | /* The cooked register space. Each cooked register in the range |
59 | [0..NR_RAW_REGISTERS) is direct-mapped onto the corresponding raw | |
60 | register. The remaining [NR_RAW_REGISTERS | |
02f60eae | 61 | .. NR_COOKED_REGISTERS) (a.k.a. pseudo registers) are mapped onto |
d138e37a | 62 | both raw registers and memory by the architecture methods |
02f60eae | 63 | gdbarch_pseudo_register_read and gdbarch_pseudo_register_write. */ |
d138e37a | 64 | int nr_cooked_registers; |
067df2e5 | 65 | long sizeof_cooked_registers; |
ee99023e | 66 | long sizeof_cooked_register_status; |
d138e37a | 67 | |
86d31898 | 68 | /* Offset and size (in 8 bit bytes), of each register in the |
d138e37a | 69 | register cache. All registers (including those in the range |
99e42fd8 PA |
70 | [NR_RAW_REGISTERS .. NR_COOKED_REGISTERS) are given an |
71 | offset. */ | |
3fadccb3 | 72 | long *register_offset; |
3fadccb3 | 73 | long *sizeof_register; |
3fadccb3 | 74 | |
bb425013 AC |
75 | /* Cached table containing the type of each register. */ |
76 | struct type **register_type; | |
3fadccb3 AC |
77 | }; |
78 | ||
3fadccb3 AC |
79 | static void * |
80 | init_regcache_descr (struct gdbarch *gdbarch) | |
81 | { | |
82 | int i; | |
83 | struct regcache_descr *descr; | |
84 | gdb_assert (gdbarch != NULL); | |
85 | ||
bb425013 | 86 | /* Create an initial, zero filled, table. */ |
116f06ea | 87 | descr = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct regcache_descr); |
3fadccb3 | 88 | descr->gdbarch = gdbarch; |
3fadccb3 | 89 | |
d138e37a AC |
90 | /* Total size of the register space. The raw registers are mapped |
91 | directly onto the raw register cache while the pseudo's are | |
3fadccb3 | 92 | either mapped onto raw-registers or memory. */ |
214e098a UW |
93 | descr->nr_cooked_registers = gdbarch_num_regs (gdbarch) |
94 | + gdbarch_num_pseudo_regs (gdbarch); | |
ee99023e PA |
95 | descr->sizeof_cooked_register_status |
96 | = gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch); | |
3fadccb3 | 97 | |
bb425013 | 98 | /* Fill in a table of register types. */ |
116f06ea | 99 | descr->register_type |
3e43a32a MS |
100 | = GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, |
101 | struct type *); | |
bb425013 | 102 | for (i = 0; i < descr->nr_cooked_registers; i++) |
336a3131 | 103 | descr->register_type[i] = gdbarch_register_type (gdbarch, i); |
bb425013 | 104 | |
bb1db049 AC |
105 | /* Construct a strictly RAW register cache. Don't allow pseudo's |
106 | into the register cache. */ | |
214e098a | 107 | descr->nr_raw_registers = gdbarch_num_regs (gdbarch); |
ee99023e | 108 | descr->sizeof_raw_register_status = gdbarch_num_regs (gdbarch); |
bb1db049 | 109 | |
067df2e5 | 110 | /* Lay out the register cache. |
3fadccb3 | 111 | |
bb425013 AC |
112 | NOTE: cagney/2002-05-22: Only register_type() is used when |
113 | constructing the register cache. It is assumed that the | |
114 | register's raw size, virtual size and type length are all the | |
115 | same. */ | |
3fadccb3 AC |
116 | |
117 | { | |
118 | long offset = 0; | |
123f5f96 | 119 | |
116f06ea AC |
120 | descr->sizeof_register |
121 | = GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, long); | |
122 | descr->register_offset | |
123 | = GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, long); | |
99e42fd8 PA |
124 | for (i = 0; i < descr->nr_raw_registers; i++) |
125 | { | |
126 | descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]); | |
127 | descr->register_offset[i] = offset; | |
128 | offset += descr->sizeof_register[i]; | |
129 | gdb_assert (MAX_REGISTER_SIZE >= descr->sizeof_register[i]); | |
130 | } | |
131 | /* Set the real size of the raw register cache buffer. */ | |
132 | descr->sizeof_raw_registers = offset; | |
133 | ||
134 | for (; i < descr->nr_cooked_registers; i++) | |
3fadccb3 | 135 | { |
bb425013 | 136 | descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]); |
3fadccb3 AC |
137 | descr->register_offset[i] = offset; |
138 | offset += descr->sizeof_register[i]; | |
123a958e | 139 | gdb_assert (MAX_REGISTER_SIZE >= descr->sizeof_register[i]); |
3fadccb3 | 140 | } |
99e42fd8 | 141 | /* Set the real size of the readonly register cache buffer. */ |
067df2e5 | 142 | descr->sizeof_cooked_registers = offset; |
3fadccb3 AC |
143 | } |
144 | ||
3fadccb3 AC |
145 | return descr; |
146 | } | |
147 | ||
148 | static struct regcache_descr * | |
149 | regcache_descr (struct gdbarch *gdbarch) | |
150 | { | |
151 | return gdbarch_data (gdbarch, regcache_descr_handle); | |
152 | } | |
153 | ||
bb425013 AC |
154 | /* Utility functions returning useful register attributes stored in |
155 | the regcache descr. */ | |
156 | ||
157 | struct type * | |
158 | register_type (struct gdbarch *gdbarch, int regnum) | |
159 | { | |
160 | struct regcache_descr *descr = regcache_descr (gdbarch); | |
123f5f96 | 161 | |
bb425013 AC |
162 | gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers); |
163 | return descr->register_type[regnum]; | |
164 | } | |
165 | ||
0ed04cce AC |
166 | /* Utility functions returning useful register attributes stored in |
167 | the regcache descr. */ | |
168 | ||
08a617da AC |
169 | int |
170 | register_size (struct gdbarch *gdbarch, int regnum) | |
171 | { | |
172 | struct regcache_descr *descr = regcache_descr (gdbarch); | |
173 | int size; | |
123f5f96 | 174 | |
f57d151a | 175 | gdb_assert (regnum >= 0 |
214e098a UW |
176 | && regnum < (gdbarch_num_regs (gdbarch) |
177 | + gdbarch_num_pseudo_regs (gdbarch))); | |
08a617da | 178 | size = descr->sizeof_register[regnum]; |
08a617da AC |
179 | return size; |
180 | } | |
181 | ||
3fadccb3 AC |
182 | /* The register cache for storing raw register values. */ |
183 | ||
184 | struct regcache | |
185 | { | |
186 | struct regcache_descr *descr; | |
6c95b8df PA |
187 | |
188 | /* The address space of this register cache (for registers where it | |
189 | makes sense, like PC or SP). */ | |
190 | struct address_space *aspace; | |
191 | ||
51b1fe4e | 192 | /* The register buffers. A read-only register cache can hold the |
f57d151a UW |
193 | full [0 .. gdbarch_num_regs + gdbarch_num_pseudo_regs) while a read/write |
194 | register cache can only hold [0 .. gdbarch_num_regs). */ | |
2d522557 | 195 | gdb_byte *registers; |
ee99023e PA |
196 | /* Register cache status. */ |
197 | signed char *register_status; | |
2d28509a AC |
198 | /* Is this a read-only cache? A read-only cache is used for saving |
199 | the target's register state (e.g, across an inferior function | |
200 | call or just before forcing a function return). A read-only | |
201 | cache can only be updated via the methods regcache_dup() and | |
202 | regcache_cpy(). The actual contents are determined by the | |
203 | reggroup_save and reggroup_restore methods. */ | |
204 | int readonly_p; | |
594f7785 UW |
205 | /* If this is a read-write cache, which thread's registers is |
206 | it connected to? */ | |
207 | ptid_t ptid; | |
3fadccb3 AC |
208 | }; |
209 | ||
99e42fd8 PA |
210 | static struct regcache * |
211 | regcache_xmalloc_1 (struct gdbarch *gdbarch, struct address_space *aspace, | |
212 | int readonly_p) | |
3fadccb3 AC |
213 | { |
214 | struct regcache_descr *descr; | |
215 | struct regcache *regcache; | |
123f5f96 | 216 | |
3fadccb3 AC |
217 | gdb_assert (gdbarch != NULL); |
218 | descr = regcache_descr (gdbarch); | |
70ba0933 | 219 | regcache = XNEW (struct regcache); |
3fadccb3 | 220 | regcache->descr = descr; |
99e42fd8 PA |
221 | regcache->readonly_p = readonly_p; |
222 | if (readonly_p) | |
223 | { | |
224 | regcache->registers | |
fc270c35 | 225 | = XCNEWVEC (gdb_byte, descr->sizeof_cooked_registers); |
ee99023e | 226 | regcache->register_status |
fc270c35 | 227 | = XCNEWVEC (signed char, descr->sizeof_cooked_register_status); |
99e42fd8 PA |
228 | } |
229 | else | |
230 | { | |
231 | regcache->registers | |
fc270c35 | 232 | = XCNEWVEC (gdb_byte, descr->sizeof_raw_registers); |
ee99023e | 233 | regcache->register_status |
fc270c35 | 234 | = XCNEWVEC (signed char, descr->sizeof_raw_register_status); |
99e42fd8 | 235 | } |
d37346f0 | 236 | regcache->aspace = aspace; |
594f7785 | 237 | regcache->ptid = minus_one_ptid; |
3fadccb3 AC |
238 | return regcache; |
239 | } | |
240 | ||
99e42fd8 PA |
241 | struct regcache * |
242 | regcache_xmalloc (struct gdbarch *gdbarch, struct address_space *aspace) | |
243 | { | |
244 | return regcache_xmalloc_1 (gdbarch, aspace, 1); | |
245 | } | |
246 | ||
3fadccb3 AC |
247 | void |
248 | regcache_xfree (struct regcache *regcache) | |
249 | { | |
250 | if (regcache == NULL) | |
251 | return; | |
51b1fe4e | 252 | xfree (regcache->registers); |
ee99023e | 253 | xfree (regcache->register_status); |
3fadccb3 AC |
254 | xfree (regcache); |
255 | } | |
256 | ||
b9362cc7 | 257 | static void |
36160dc4 AC |
258 | do_regcache_xfree (void *data) |
259 | { | |
260 | regcache_xfree (data); | |
261 | } | |
262 | ||
263 | struct cleanup * | |
264 | make_cleanup_regcache_xfree (struct regcache *regcache) | |
265 | { | |
266 | return make_cleanup (do_regcache_xfree, regcache); | |
267 | } | |
268 | ||
b94ade42 PL |
269 | /* Cleanup routines for invalidating a register. */ |
270 | ||
271 | struct register_to_invalidate | |
272 | { | |
273 | struct regcache *regcache; | |
274 | int regnum; | |
275 | }; | |
276 | ||
277 | static void | |
278 | do_regcache_invalidate (void *data) | |
279 | { | |
280 | struct register_to_invalidate *reg = data; | |
281 | ||
282 | regcache_invalidate (reg->regcache, reg->regnum); | |
283 | } | |
284 | ||
285 | static struct cleanup * | |
286 | make_cleanup_regcache_invalidate (struct regcache *regcache, int regnum) | |
287 | { | |
288 | struct register_to_invalidate* reg = XNEW (struct register_to_invalidate); | |
289 | ||
290 | reg->regcache = regcache; | |
291 | reg->regnum = regnum; | |
292 | return make_cleanup_dtor (do_regcache_invalidate, (void *) reg, xfree); | |
293 | } | |
294 | ||
41d35cb0 MK |
295 | /* Return REGCACHE's architecture. */ |
296 | ||
297 | struct gdbarch * | |
298 | get_regcache_arch (const struct regcache *regcache) | |
299 | { | |
300 | return regcache->descr->gdbarch; | |
301 | } | |
302 | ||
6c95b8df PA |
303 | struct address_space * |
304 | get_regcache_aspace (const struct regcache *regcache) | |
305 | { | |
306 | return regcache->aspace; | |
307 | } | |
308 | ||
51b1fe4e AC |
309 | /* Return a pointer to register REGNUM's buffer cache. */ |
310 | ||
2d522557 | 311 | static gdb_byte * |
9a661b68 | 312 | register_buffer (const struct regcache *regcache, int regnum) |
51b1fe4e AC |
313 | { |
314 | return regcache->registers + regcache->descr->register_offset[regnum]; | |
315 | } | |
316 | ||
2d28509a | 317 | void |
5602984a AC |
318 | regcache_save (struct regcache *dst, regcache_cooked_read_ftype *cooked_read, |
319 | void *src) | |
2d28509a AC |
320 | { |
321 | struct gdbarch *gdbarch = dst->descr->gdbarch; | |
2d522557 | 322 | gdb_byte buf[MAX_REGISTER_SIZE]; |
2d28509a | 323 | int regnum; |
123f5f96 | 324 | |
2d28509a | 325 | /* The DST should be `read-only', if it wasn't then the save would |
5602984a | 326 | end up trying to write the register values back out to the |
2d28509a | 327 | target. */ |
2d28509a AC |
328 | gdb_assert (dst->readonly_p); |
329 | /* Clear the dest. */ | |
330 | memset (dst->registers, 0, dst->descr->sizeof_cooked_registers); | |
ee99023e PA |
331 | memset (dst->register_status, 0, |
332 | dst->descr->sizeof_cooked_register_status); | |
2d28509a | 333 | /* Copy over any registers (identified by their membership in the |
f57d151a UW |
334 | save_reggroup) and mark them as valid. The full [0 .. gdbarch_num_regs + |
335 | gdbarch_num_pseudo_regs) range is checked since some architectures need | |
5602984a | 336 | to save/restore `cooked' registers that live in memory. */ |
2d28509a AC |
337 | for (regnum = 0; regnum < dst->descr->nr_cooked_registers; regnum++) |
338 | { | |
339 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
340 | { | |
05d1431c | 341 | enum register_status status = cooked_read (src, regnum, buf); |
123f5f96 | 342 | |
05d1431c PA |
343 | if (status == REG_VALID) |
344 | memcpy (register_buffer (dst, regnum), buf, | |
345 | register_size (gdbarch, regnum)); | |
346 | else | |
5602984a | 347 | { |
05d1431c PA |
348 | gdb_assert (status != REG_UNKNOWN); |
349 | ||
350 | memset (register_buffer (dst, regnum), 0, | |
5602984a | 351 | register_size (gdbarch, regnum)); |
5602984a | 352 | } |
05d1431c | 353 | dst->register_status[regnum] = status; |
2d28509a AC |
354 | } |
355 | } | |
356 | } | |
357 | ||
349d1385 | 358 | static void |
5602984a AC |
359 | regcache_restore (struct regcache *dst, |
360 | regcache_cooked_read_ftype *cooked_read, | |
2d522557 | 361 | void *cooked_read_context) |
2d28509a AC |
362 | { |
363 | struct gdbarch *gdbarch = dst->descr->gdbarch; | |
2d522557 | 364 | gdb_byte buf[MAX_REGISTER_SIZE]; |
2d28509a | 365 | int regnum; |
123f5f96 | 366 | |
5602984a AC |
367 | /* The dst had better not be read-only. If it is, the `restore' |
368 | doesn't make much sense. */ | |
2d28509a | 369 | gdb_assert (!dst->readonly_p); |
2d28509a | 370 | /* Copy over any registers, being careful to only restore those that |
f57d151a UW |
371 | were both saved and need to be restored. The full [0 .. gdbarch_num_regs |
372 | + gdbarch_num_pseudo_regs) range is checked since some architectures need | |
5602984a AC |
373 | to save/restore `cooked' registers that live in memory. */ |
374 | for (regnum = 0; regnum < dst->descr->nr_cooked_registers; regnum++) | |
2d28509a | 375 | { |
5602984a | 376 | if (gdbarch_register_reggroup_p (gdbarch, regnum, restore_reggroup)) |
2d28509a | 377 | { |
349d1385 | 378 | enum register_status status; |
123f5f96 | 379 | |
349d1385 DM |
380 | status = cooked_read (cooked_read_context, regnum, buf); |
381 | if (status == REG_VALID) | |
5602984a | 382 | regcache_cooked_write (dst, regnum, buf); |
2d28509a AC |
383 | } |
384 | } | |
385 | } | |
386 | ||
05d1431c | 387 | static enum register_status |
2d522557 | 388 | do_cooked_read (void *src, int regnum, gdb_byte *buf) |
5602984a AC |
389 | { |
390 | struct regcache *regcache = src; | |
123f5f96 | 391 | |
05d1431c | 392 | return regcache_cooked_read (regcache, regnum, buf); |
5602984a AC |
393 | } |
394 | ||
3fadccb3 AC |
395 | void |
396 | regcache_cpy (struct regcache *dst, struct regcache *src) | |
397 | { | |
3fadccb3 AC |
398 | gdb_assert (src != NULL && dst != NULL); |
399 | gdb_assert (src->descr->gdbarch == dst->descr->gdbarch); | |
400 | gdb_assert (src != dst); | |
2d28509a | 401 | gdb_assert (src->readonly_p || dst->readonly_p); |
6c95b8df | 402 | |
2d28509a | 403 | if (!src->readonly_p) |
5602984a | 404 | regcache_save (dst, do_cooked_read, src); |
2d28509a | 405 | else if (!dst->readonly_p) |
5602984a | 406 | regcache_restore (dst, do_cooked_read, src); |
2d28509a AC |
407 | else |
408 | regcache_cpy_no_passthrough (dst, src); | |
3fadccb3 AC |
409 | } |
410 | ||
411 | void | |
412 | regcache_cpy_no_passthrough (struct regcache *dst, struct regcache *src) | |
413 | { | |
3fadccb3 AC |
414 | gdb_assert (src != NULL && dst != NULL); |
415 | gdb_assert (src->descr->gdbarch == dst->descr->gdbarch); | |
416 | /* NOTE: cagney/2002-05-17: Don't let the caller do a no-passthrough | |
ee99023e PA |
417 | move of data into a thread's regcache. Doing this would be silly |
418 | - it would mean that regcache->register_status would be | |
419 | completely invalid. */ | |
99e42fd8 | 420 | gdb_assert (dst->readonly_p && src->readonly_p); |
6c95b8df | 421 | |
99e42fd8 PA |
422 | memcpy (dst->registers, src->registers, |
423 | dst->descr->sizeof_cooked_registers); | |
ee99023e PA |
424 | memcpy (dst->register_status, src->register_status, |
425 | dst->descr->sizeof_cooked_register_status); | |
3fadccb3 AC |
426 | } |
427 | ||
428 | struct regcache * | |
429 | regcache_dup (struct regcache *src) | |
430 | { | |
431 | struct regcache *newbuf; | |
123f5f96 | 432 | |
d37346f0 | 433 | newbuf = regcache_xmalloc (src->descr->gdbarch, get_regcache_aspace (src)); |
3fadccb3 AC |
434 | regcache_cpy (newbuf, src); |
435 | return newbuf; | |
436 | } | |
437 | ||
39181896 | 438 | enum register_status |
ee99023e | 439 | regcache_register_status (const struct regcache *regcache, int regnum) |
3fadccb3 AC |
440 | { |
441 | gdb_assert (regcache != NULL); | |
6ed7ea50 UW |
442 | gdb_assert (regnum >= 0); |
443 | if (regcache->readonly_p) | |
444 | gdb_assert (regnum < regcache->descr->nr_cooked_registers); | |
445 | else | |
446 | gdb_assert (regnum < regcache->descr->nr_raw_registers); | |
447 | ||
ee99023e | 448 | return regcache->register_status[regnum]; |
3fadccb3 AC |
449 | } |
450 | ||
9c5ea4d9 UW |
451 | void |
452 | regcache_invalidate (struct regcache *regcache, int regnum) | |
453 | { | |
454 | gdb_assert (regcache != NULL); | |
455 | gdb_assert (regnum >= 0); | |
456 | gdb_assert (!regcache->readonly_p); | |
457 | gdb_assert (regnum < regcache->descr->nr_raw_registers); | |
ee99023e | 458 | regcache->register_status[regnum] = REG_UNKNOWN; |
9c5ea4d9 UW |
459 | } |
460 | ||
461 | ||
3fadccb3 | 462 | /* Global structure containing the current regcache. */ |
3fadccb3 | 463 | |
5ebd2499 | 464 | /* NOTE: this is a write-through cache. There is no "dirty" bit for |
32178cab MS |
465 | recording if the register values have been changed (eg. by the |
466 | user). Therefore all registers must be written back to the | |
467 | target when appropriate. */ | |
468 | ||
c2250ad1 | 469 | struct regcache_list |
594f7785 | 470 | { |
c2250ad1 UW |
471 | struct regcache *regcache; |
472 | struct regcache_list *next; | |
473 | }; | |
474 | ||
475 | static struct regcache_list *current_regcache; | |
476 | ||
477 | struct regcache * | |
e2d96639 YQ |
478 | get_thread_arch_aspace_regcache (ptid_t ptid, struct gdbarch *gdbarch, |
479 | struct address_space *aspace) | |
c2250ad1 UW |
480 | { |
481 | struct regcache_list *list; | |
482 | struct regcache *new_regcache; | |
594f7785 | 483 | |
c2250ad1 UW |
484 | for (list = current_regcache; list; list = list->next) |
485 | if (ptid_equal (list->regcache->ptid, ptid) | |
486 | && get_regcache_arch (list->regcache) == gdbarch) | |
487 | return list->regcache; | |
594f7785 | 488 | |
e2d96639 YQ |
489 | new_regcache = regcache_xmalloc_1 (gdbarch, aspace, 0); |
490 | new_regcache->ptid = ptid; | |
491 | ||
492 | list = xmalloc (sizeof (struct regcache_list)); | |
493 | list->regcache = new_regcache; | |
494 | list->next = current_regcache; | |
495 | current_regcache = list; | |
496 | ||
497 | return new_regcache; | |
498 | } | |
499 | ||
500 | struct regcache * | |
501 | get_thread_arch_regcache (ptid_t ptid, struct gdbarch *gdbarch) | |
502 | { | |
503 | struct address_space *aspace; | |
504 | ||
b78974c3 PA |
505 | /* For the benefit of "maint print registers" & co when debugging an |
506 | executable, allow dumping the regcache even when there is no | |
507 | thread selected (target_thread_address_space internal-errors if | |
508 | no address space is found). Note that normal user commands will | |
509 | fail higher up on the call stack due to no | |
510 | target_has_registers. */ | |
511 | aspace = (ptid_equal (null_ptid, ptid) | |
512 | ? NULL | |
513 | : target_thread_address_space (ptid)); | |
514 | ||
e2d96639 | 515 | return get_thread_arch_aspace_regcache (ptid, gdbarch, aspace); |
594f7785 UW |
516 | } |
517 | ||
c2250ad1 UW |
518 | static ptid_t current_thread_ptid; |
519 | static struct gdbarch *current_thread_arch; | |
520 | ||
521 | struct regcache * | |
522 | get_thread_regcache (ptid_t ptid) | |
523 | { | |
524 | if (!current_thread_arch || !ptid_equal (current_thread_ptid, ptid)) | |
525 | { | |
526 | current_thread_ptid = ptid; | |
527 | current_thread_arch = target_thread_architecture (ptid); | |
528 | } | |
529 | ||
530 | return get_thread_arch_regcache (ptid, current_thread_arch); | |
531 | } | |
532 | ||
533 | struct regcache * | |
534 | get_current_regcache (void) | |
594f7785 UW |
535 | { |
536 | return get_thread_regcache (inferior_ptid); | |
537 | } | |
32178cab | 538 | |
32178cab | 539 | |
f4c5303c OF |
540 | /* Observer for the target_changed event. */ |
541 | ||
2c0b251b | 542 | static void |
f4c5303c OF |
543 | regcache_observer_target_changed (struct target_ops *target) |
544 | { | |
545 | registers_changed (); | |
546 | } | |
547 | ||
5231c1fd PA |
548 | /* Update global variables old ptids to hold NEW_PTID if they were |
549 | holding OLD_PTID. */ | |
550 | static void | |
551 | regcache_thread_ptid_changed (ptid_t old_ptid, ptid_t new_ptid) | |
552 | { | |
c2250ad1 UW |
553 | struct regcache_list *list; |
554 | ||
555 | for (list = current_regcache; list; list = list->next) | |
556 | if (ptid_equal (list->regcache->ptid, old_ptid)) | |
557 | list->regcache->ptid = new_ptid; | |
5231c1fd PA |
558 | } |
559 | ||
32178cab MS |
560 | /* Low level examining and depositing of registers. |
561 | ||
562 | The caller is responsible for making sure that the inferior is | |
563 | stopped before calling the fetching routines, or it will get | |
564 | garbage. (a change from GDB version 3, in which the caller got the | |
565 | value from the last stop). */ | |
566 | ||
567 | /* REGISTERS_CHANGED () | |
568 | ||
569 | Indicate that registers may have changed, so invalidate the cache. */ | |
570 | ||
571 | void | |
e66408ed | 572 | registers_changed_ptid (ptid_t ptid) |
32178cab | 573 | { |
e66408ed | 574 | struct regcache_list *list, **list_link; |
c2250ad1 | 575 | |
e66408ed PA |
576 | list = current_regcache; |
577 | list_link = ¤t_regcache; | |
578 | while (list) | |
c2250ad1 | 579 | { |
e66408ed PA |
580 | if (ptid_match (list->regcache->ptid, ptid)) |
581 | { | |
582 | struct regcache_list *dead = list; | |
583 | ||
584 | *list_link = list->next; | |
585 | regcache_xfree (list->regcache); | |
586 | list = *list_link; | |
587 | xfree (dead); | |
588 | continue; | |
589 | } | |
590 | ||
591 | list_link = &list->next; | |
592 | list = *list_link; | |
c2250ad1 | 593 | } |
32178cab | 594 | |
c34fd852 | 595 | if (ptid_match (current_thread_ptid, ptid)) |
041274d8 PA |
596 | { |
597 | current_thread_ptid = null_ptid; | |
598 | current_thread_arch = NULL; | |
599 | } | |
32178cab | 600 | |
c34fd852 | 601 | if (ptid_match (inferior_ptid, ptid)) |
041274d8 PA |
602 | { |
603 | /* We just deleted the regcache of the current thread. Need to | |
604 | forget about any frames we have cached, too. */ | |
605 | reinit_frame_cache (); | |
606 | } | |
607 | } | |
c2250ad1 | 608 | |
041274d8 PA |
609 | void |
610 | registers_changed (void) | |
611 | { | |
612 | registers_changed_ptid (minus_one_ptid); | |
a5d9d57d | 613 | |
32178cab MS |
614 | /* Force cleanup of any alloca areas if using C alloca instead of |
615 | a builtin alloca. This particular call is used to clean up | |
616 | areas allocated by low level target code which may build up | |
617 | during lengthy interactions between gdb and the target before | |
618 | gdb gives control to the user (ie watchpoints). */ | |
619 | alloca (0); | |
32178cab MS |
620 | } |
621 | ||
05d1431c | 622 | enum register_status |
2d522557 | 623 | regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf) |
61a0eb5b | 624 | { |
3fadccb3 AC |
625 | gdb_assert (regcache != NULL && buf != NULL); |
626 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
3fadccb3 AC |
627 | /* Make certain that the register cache is up-to-date with respect |
628 | to the current thread. This switching shouldn't be necessary | |
629 | only there is still only one target side register cache. Sigh! | |
630 | On the bright side, at least there is a regcache object. */ | |
788c8b10 PA |
631 | if (!regcache->readonly_p |
632 | && regcache_register_status (regcache, regnum) == REG_UNKNOWN) | |
3fadccb3 | 633 | { |
788c8b10 | 634 | struct cleanup *old_chain = save_inferior_ptid (); |
123f5f96 | 635 | |
788c8b10 PA |
636 | inferior_ptid = regcache->ptid; |
637 | target_fetch_registers (regcache, regnum); | |
638 | do_cleanups (old_chain); | |
639 | ||
640 | /* A number of targets can't access the whole set of raw | |
641 | registers (because the debug API provides no means to get at | |
642 | them). */ | |
643 | if (regcache->register_status[regnum] == REG_UNKNOWN) | |
644 | regcache->register_status[regnum] = REG_UNAVAILABLE; | |
3fadccb3 | 645 | } |
05d1431c PA |
646 | |
647 | if (regcache->register_status[regnum] != REG_VALID) | |
648 | memset (buf, 0, regcache->descr->sizeof_register[regnum]); | |
649 | else | |
650 | memcpy (buf, register_buffer (regcache, regnum), | |
651 | regcache->descr->sizeof_register[regnum]); | |
652 | ||
653 | return regcache->register_status[regnum]; | |
61a0eb5b AC |
654 | } |
655 | ||
05d1431c | 656 | enum register_status |
28fc6740 AC |
657 | regcache_raw_read_signed (struct regcache *regcache, int regnum, LONGEST *val) |
658 | { | |
2d522557 | 659 | gdb_byte *buf; |
05d1431c | 660 | enum register_status status; |
123f5f96 | 661 | |
28fc6740 AC |
662 | gdb_assert (regcache != NULL); |
663 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
664 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
05d1431c PA |
665 | status = regcache_raw_read (regcache, regnum, buf); |
666 | if (status == REG_VALID) | |
667 | *val = extract_signed_integer | |
668 | (buf, regcache->descr->sizeof_register[regnum], | |
669 | gdbarch_byte_order (regcache->descr->gdbarch)); | |
670 | else | |
671 | *val = 0; | |
672 | return status; | |
28fc6740 AC |
673 | } |
674 | ||
05d1431c | 675 | enum register_status |
28fc6740 AC |
676 | regcache_raw_read_unsigned (struct regcache *regcache, int regnum, |
677 | ULONGEST *val) | |
678 | { | |
2d522557 | 679 | gdb_byte *buf; |
05d1431c | 680 | enum register_status status; |
123f5f96 | 681 | |
28fc6740 AC |
682 | gdb_assert (regcache != NULL); |
683 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
684 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
05d1431c PA |
685 | status = regcache_raw_read (regcache, regnum, buf); |
686 | if (status == REG_VALID) | |
687 | *val = extract_unsigned_integer | |
688 | (buf, regcache->descr->sizeof_register[regnum], | |
689 | gdbarch_byte_order (regcache->descr->gdbarch)); | |
690 | else | |
691 | *val = 0; | |
692 | return status; | |
28fc6740 AC |
693 | } |
694 | ||
c00dcbe9 MK |
695 | void |
696 | regcache_raw_write_signed (struct regcache *regcache, int regnum, LONGEST val) | |
697 | { | |
698 | void *buf; | |
123f5f96 | 699 | |
c00dcbe9 MK |
700 | gdb_assert (regcache != NULL); |
701 | gdb_assert (regnum >=0 && regnum < regcache->descr->nr_raw_registers); | |
702 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
e17a4113 UW |
703 | store_signed_integer (buf, regcache->descr->sizeof_register[regnum], |
704 | gdbarch_byte_order (regcache->descr->gdbarch), val); | |
c00dcbe9 MK |
705 | regcache_raw_write (regcache, regnum, buf); |
706 | } | |
707 | ||
708 | void | |
709 | regcache_raw_write_unsigned (struct regcache *regcache, int regnum, | |
710 | ULONGEST val) | |
711 | { | |
712 | void *buf; | |
123f5f96 | 713 | |
c00dcbe9 MK |
714 | gdb_assert (regcache != NULL); |
715 | gdb_assert (regnum >=0 && regnum < regcache->descr->nr_raw_registers); | |
716 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
e17a4113 UW |
717 | store_unsigned_integer (buf, regcache->descr->sizeof_register[regnum], |
718 | gdbarch_byte_order (regcache->descr->gdbarch), val); | |
c00dcbe9 MK |
719 | regcache_raw_write (regcache, regnum, buf); |
720 | } | |
721 | ||
05d1431c | 722 | enum register_status |
2d522557 | 723 | regcache_cooked_read (struct regcache *regcache, int regnum, gdb_byte *buf) |
68365089 | 724 | { |
d138e37a | 725 | gdb_assert (regnum >= 0); |
68365089 AC |
726 | gdb_assert (regnum < regcache->descr->nr_cooked_registers); |
727 | if (regnum < regcache->descr->nr_raw_registers) | |
05d1431c | 728 | return regcache_raw_read (regcache, regnum, buf); |
2d28509a | 729 | else if (regcache->readonly_p |
05d1431c PA |
730 | && regcache->register_status[regnum] != REG_UNKNOWN) |
731 | { | |
732 | /* Read-only register cache, perhaps the cooked value was | |
733 | cached? */ | |
05d1431c PA |
734 | if (regcache->register_status[regnum] == REG_VALID) |
735 | memcpy (buf, register_buffer (regcache, regnum), | |
736 | regcache->descr->sizeof_register[regnum]); | |
737 | else | |
738 | memset (buf, 0, regcache->descr->sizeof_register[regnum]); | |
739 | ||
740 | return regcache->register_status[regnum]; | |
741 | } | |
3543a589 TT |
742 | else if (gdbarch_pseudo_register_read_value_p (regcache->descr->gdbarch)) |
743 | { | |
744 | struct value *mark, *computed; | |
745 | enum register_status result = REG_VALID; | |
746 | ||
747 | mark = value_mark (); | |
748 | ||
749 | computed = gdbarch_pseudo_register_read_value (regcache->descr->gdbarch, | |
750 | regcache, regnum); | |
751 | if (value_entirely_available (computed)) | |
752 | memcpy (buf, value_contents_raw (computed), | |
753 | regcache->descr->sizeof_register[regnum]); | |
754 | else | |
755 | { | |
756 | memset (buf, 0, regcache->descr->sizeof_register[regnum]); | |
757 | result = REG_UNAVAILABLE; | |
758 | } | |
759 | ||
760 | value_free_to_mark (mark); | |
761 | ||
762 | return result; | |
763 | } | |
d138e37a | 764 | else |
05d1431c PA |
765 | return gdbarch_pseudo_register_read (regcache->descr->gdbarch, regcache, |
766 | regnum, buf); | |
61a0eb5b AC |
767 | } |
768 | ||
3543a589 TT |
769 | struct value * |
770 | regcache_cooked_read_value (struct regcache *regcache, int regnum) | |
771 | { | |
772 | gdb_assert (regnum >= 0); | |
773 | gdb_assert (regnum < regcache->descr->nr_cooked_registers); | |
774 | ||
775 | if (regnum < regcache->descr->nr_raw_registers | |
776 | || (regcache->readonly_p | |
777 | && regcache->register_status[regnum] != REG_UNKNOWN) | |
778 | || !gdbarch_pseudo_register_read_value_p (regcache->descr->gdbarch)) | |
779 | { | |
780 | struct value *result; | |
781 | ||
782 | result = allocate_value (register_type (regcache->descr->gdbarch, | |
783 | regnum)); | |
784 | VALUE_LVAL (result) = lval_register; | |
785 | VALUE_REGNUM (result) = regnum; | |
786 | ||
787 | /* It is more efficient in general to do this delegation in this | |
788 | direction than in the other one, even though the value-based | |
789 | API is preferred. */ | |
790 | if (regcache_cooked_read (regcache, regnum, | |
791 | value_contents_raw (result)) == REG_UNAVAILABLE) | |
792 | mark_value_bytes_unavailable (result, 0, | |
793 | TYPE_LENGTH (value_type (result))); | |
794 | ||
795 | return result; | |
796 | } | |
797 | else | |
798 | return gdbarch_pseudo_register_read_value (regcache->descr->gdbarch, | |
799 | regcache, regnum); | |
800 | } | |
801 | ||
05d1431c | 802 | enum register_status |
a378f419 AC |
803 | regcache_cooked_read_signed (struct regcache *regcache, int regnum, |
804 | LONGEST *val) | |
805 | { | |
05d1431c | 806 | enum register_status status; |
2d522557 | 807 | gdb_byte *buf; |
123f5f96 | 808 | |
a378f419 | 809 | gdb_assert (regcache != NULL); |
a66a9c23 | 810 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_cooked_registers); |
a378f419 | 811 | buf = alloca (regcache->descr->sizeof_register[regnum]); |
05d1431c PA |
812 | status = regcache_cooked_read (regcache, regnum, buf); |
813 | if (status == REG_VALID) | |
814 | *val = extract_signed_integer | |
815 | (buf, regcache->descr->sizeof_register[regnum], | |
816 | gdbarch_byte_order (regcache->descr->gdbarch)); | |
817 | else | |
818 | *val = 0; | |
819 | return status; | |
a378f419 AC |
820 | } |
821 | ||
05d1431c | 822 | enum register_status |
a378f419 AC |
823 | regcache_cooked_read_unsigned (struct regcache *regcache, int regnum, |
824 | ULONGEST *val) | |
825 | { | |
05d1431c | 826 | enum register_status status; |
2d522557 | 827 | gdb_byte *buf; |
123f5f96 | 828 | |
a378f419 | 829 | gdb_assert (regcache != NULL); |
a66a9c23 | 830 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_cooked_registers); |
a378f419 | 831 | buf = alloca (regcache->descr->sizeof_register[regnum]); |
05d1431c PA |
832 | status = regcache_cooked_read (regcache, regnum, buf); |
833 | if (status == REG_VALID) | |
834 | *val = extract_unsigned_integer | |
835 | (buf, regcache->descr->sizeof_register[regnum], | |
836 | gdbarch_byte_order (regcache->descr->gdbarch)); | |
837 | else | |
838 | *val = 0; | |
839 | return status; | |
a378f419 AC |
840 | } |
841 | ||
a66a9c23 AC |
842 | void |
843 | regcache_cooked_write_signed (struct regcache *regcache, int regnum, | |
844 | LONGEST val) | |
845 | { | |
846 | void *buf; | |
123f5f96 | 847 | |
a66a9c23 AC |
848 | gdb_assert (regcache != NULL); |
849 | gdb_assert (regnum >=0 && regnum < regcache->descr->nr_cooked_registers); | |
850 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
e17a4113 UW |
851 | store_signed_integer (buf, regcache->descr->sizeof_register[regnum], |
852 | gdbarch_byte_order (regcache->descr->gdbarch), val); | |
a66a9c23 AC |
853 | regcache_cooked_write (regcache, regnum, buf); |
854 | } | |
855 | ||
856 | void | |
857 | regcache_cooked_write_unsigned (struct regcache *regcache, int regnum, | |
858 | ULONGEST val) | |
859 | { | |
860 | void *buf; | |
123f5f96 | 861 | |
a66a9c23 AC |
862 | gdb_assert (regcache != NULL); |
863 | gdb_assert (regnum >=0 && regnum < regcache->descr->nr_cooked_registers); | |
864 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
e17a4113 UW |
865 | store_unsigned_integer (buf, regcache->descr->sizeof_register[regnum], |
866 | gdbarch_byte_order (regcache->descr->gdbarch), val); | |
a66a9c23 AC |
867 | regcache_cooked_write (regcache, regnum, buf); |
868 | } | |
869 | ||
61a0eb5b | 870 | void |
2d522557 AC |
871 | regcache_raw_write (struct regcache *regcache, int regnum, |
872 | const gdb_byte *buf) | |
61a0eb5b | 873 | { |
b94ade42 PL |
874 | struct cleanup *chain_before_save_inferior; |
875 | struct cleanup *chain_before_invalidate_register; | |
594f7785 | 876 | |
3fadccb3 AC |
877 | gdb_assert (regcache != NULL && buf != NULL); |
878 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
2d28509a | 879 | gdb_assert (!regcache->readonly_p); |
3fadccb3 | 880 | |
3fadccb3 AC |
881 | /* On the sparc, writing %g0 is a no-op, so we don't even want to |
882 | change the registers array if something writes to this register. */ | |
214e098a | 883 | if (gdbarch_cannot_store_register (get_regcache_arch (regcache), regnum)) |
3fadccb3 AC |
884 | return; |
885 | ||
3fadccb3 | 886 | /* If we have a valid copy of the register, and new value == old |
0df8b418 | 887 | value, then don't bother doing the actual store. */ |
ee99023e | 888 | if (regcache_register_status (regcache, regnum) == REG_VALID |
3fadccb3 AC |
889 | && (memcmp (register_buffer (regcache, regnum), buf, |
890 | regcache->descr->sizeof_register[regnum]) == 0)) | |
891 | return; | |
892 | ||
b94ade42 | 893 | chain_before_save_inferior = save_inferior_ptid (); |
594f7785 UW |
894 | inferior_ptid = regcache->ptid; |
895 | ||
316f2060 | 896 | target_prepare_to_store (regcache); |
3fadccb3 AC |
897 | memcpy (register_buffer (regcache, regnum), buf, |
898 | regcache->descr->sizeof_register[regnum]); | |
ee99023e | 899 | regcache->register_status[regnum] = REG_VALID; |
b94ade42 PL |
900 | |
901 | /* Register a cleanup function for invalidating the register after it is | |
902 | written, in case of a failure. */ | |
903 | chain_before_invalidate_register | |
904 | = make_cleanup_regcache_invalidate (regcache, regnum); | |
905 | ||
56be3814 | 906 | target_store_registers (regcache, regnum); |
594f7785 | 907 | |
b94ade42 PL |
908 | /* The target did not throw an error so we can discard invalidating the |
909 | register and restore the cleanup chain to what it was. */ | |
910 | discard_cleanups (chain_before_invalidate_register); | |
911 | ||
912 | do_cleanups (chain_before_save_inferior); | |
61a0eb5b AC |
913 | } |
914 | ||
68365089 | 915 | void |
2d522557 AC |
916 | regcache_cooked_write (struct regcache *regcache, int regnum, |
917 | const gdb_byte *buf) | |
68365089 | 918 | { |
d138e37a | 919 | gdb_assert (regnum >= 0); |
68365089 AC |
920 | gdb_assert (regnum < regcache->descr->nr_cooked_registers); |
921 | if (regnum < regcache->descr->nr_raw_registers) | |
922 | regcache_raw_write (regcache, regnum, buf); | |
d138e37a | 923 | else |
68365089 | 924 | gdbarch_pseudo_register_write (regcache->descr->gdbarch, regcache, |
d8124050 | 925 | regnum, buf); |
61a0eb5b AC |
926 | } |
927 | ||
06c0b04e AC |
928 | /* Perform a partial register transfer using a read, modify, write |
929 | operation. */ | |
930 | ||
931 | typedef void (regcache_read_ftype) (struct regcache *regcache, int regnum, | |
932 | void *buf); | |
933 | typedef void (regcache_write_ftype) (struct regcache *regcache, int regnum, | |
934 | const void *buf); | |
935 | ||
05d1431c | 936 | static enum register_status |
06c0b04e AC |
937 | regcache_xfer_part (struct regcache *regcache, int regnum, |
938 | int offset, int len, void *in, const void *out, | |
05d1431c PA |
939 | enum register_status (*read) (struct regcache *regcache, |
940 | int regnum, | |
941 | gdb_byte *buf), | |
2d522557 AC |
942 | void (*write) (struct regcache *regcache, int regnum, |
943 | const gdb_byte *buf)) | |
06c0b04e AC |
944 | { |
945 | struct regcache_descr *descr = regcache->descr; | |
fc1a4b47 | 946 | gdb_byte reg[MAX_REGISTER_SIZE]; |
123f5f96 | 947 | |
06c0b04e AC |
948 | gdb_assert (offset >= 0 && offset <= descr->sizeof_register[regnum]); |
949 | gdb_assert (len >= 0 && offset + len <= descr->sizeof_register[regnum]); | |
950 | /* Something to do? */ | |
951 | if (offset + len == 0) | |
05d1431c | 952 | return REG_VALID; |
0df8b418 | 953 | /* Read (when needed) ... */ |
06c0b04e AC |
954 | if (in != NULL |
955 | || offset > 0 | |
956 | || offset + len < descr->sizeof_register[regnum]) | |
957 | { | |
05d1431c PA |
958 | enum register_status status; |
959 | ||
06c0b04e | 960 | gdb_assert (read != NULL); |
05d1431c PA |
961 | status = read (regcache, regnum, reg); |
962 | if (status != REG_VALID) | |
963 | return status; | |
06c0b04e | 964 | } |
0df8b418 | 965 | /* ... modify ... */ |
06c0b04e AC |
966 | if (in != NULL) |
967 | memcpy (in, reg + offset, len); | |
968 | if (out != NULL) | |
969 | memcpy (reg + offset, out, len); | |
970 | /* ... write (when needed). */ | |
971 | if (out != NULL) | |
972 | { | |
973 | gdb_assert (write != NULL); | |
974 | write (regcache, regnum, reg); | |
975 | } | |
05d1431c PA |
976 | |
977 | return REG_VALID; | |
06c0b04e AC |
978 | } |
979 | ||
05d1431c | 980 | enum register_status |
06c0b04e | 981 | regcache_raw_read_part (struct regcache *regcache, int regnum, |
2d522557 | 982 | int offset, int len, gdb_byte *buf) |
06c0b04e AC |
983 | { |
984 | struct regcache_descr *descr = regcache->descr; | |
123f5f96 | 985 | |
06c0b04e | 986 | gdb_assert (regnum >= 0 && regnum < descr->nr_raw_registers); |
05d1431c PA |
987 | return regcache_xfer_part (regcache, regnum, offset, len, buf, NULL, |
988 | regcache_raw_read, regcache_raw_write); | |
06c0b04e AC |
989 | } |
990 | ||
991 | void | |
992 | regcache_raw_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 993 | int offset, int len, const gdb_byte *buf) |
06c0b04e AC |
994 | { |
995 | struct regcache_descr *descr = regcache->descr; | |
123f5f96 | 996 | |
06c0b04e AC |
997 | gdb_assert (regnum >= 0 && regnum < descr->nr_raw_registers); |
998 | regcache_xfer_part (regcache, regnum, offset, len, NULL, buf, | |
999 | regcache_raw_read, regcache_raw_write); | |
1000 | } | |
1001 | ||
05d1431c | 1002 | enum register_status |
06c0b04e | 1003 | regcache_cooked_read_part (struct regcache *regcache, int regnum, |
2d522557 | 1004 | int offset, int len, gdb_byte *buf) |
06c0b04e AC |
1005 | { |
1006 | struct regcache_descr *descr = regcache->descr; | |
123f5f96 | 1007 | |
06c0b04e | 1008 | gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers); |
05d1431c PA |
1009 | return regcache_xfer_part (regcache, regnum, offset, len, buf, NULL, |
1010 | regcache_cooked_read, regcache_cooked_write); | |
06c0b04e AC |
1011 | } |
1012 | ||
1013 | void | |
1014 | regcache_cooked_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 1015 | int offset, int len, const gdb_byte *buf) |
06c0b04e AC |
1016 | { |
1017 | struct regcache_descr *descr = regcache->descr; | |
123f5f96 | 1018 | |
06c0b04e AC |
1019 | gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers); |
1020 | regcache_xfer_part (regcache, regnum, offset, len, NULL, buf, | |
1021 | regcache_cooked_read, regcache_cooked_write); | |
1022 | } | |
32178cab | 1023 | |
a16d75cc | 1024 | /* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */ |
9a661b68 MK |
1025 | |
1026 | void | |
6618125d | 1027 | regcache_raw_supply (struct regcache *regcache, int regnum, const void *buf) |
9a661b68 MK |
1028 | { |
1029 | void *regbuf; | |
1030 | size_t size; | |
1031 | ||
a16d75cc | 1032 | gdb_assert (regcache != NULL); |
9a661b68 MK |
1033 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); |
1034 | gdb_assert (!regcache->readonly_p); | |
1035 | ||
9a661b68 MK |
1036 | regbuf = register_buffer (regcache, regnum); |
1037 | size = regcache->descr->sizeof_register[regnum]; | |
1038 | ||
1039 | if (buf) | |
ee99023e PA |
1040 | { |
1041 | memcpy (regbuf, buf, size); | |
1042 | regcache->register_status[regnum] = REG_VALID; | |
1043 | } | |
9a661b68 | 1044 | else |
ee99023e PA |
1045 | { |
1046 | /* This memset not strictly necessary, but better than garbage | |
1047 | in case the register value manages to escape somewhere (due | |
1048 | to a bug, no less). */ | |
1049 | memset (regbuf, 0, size); | |
1050 | regcache->register_status[regnum] = REG_UNAVAILABLE; | |
1051 | } | |
9a661b68 MK |
1052 | } |
1053 | ||
1054 | /* Collect register REGNUM from REGCACHE and store its contents in BUF. */ | |
1055 | ||
1056 | void | |
6618125d | 1057 | regcache_raw_collect (const struct regcache *regcache, int regnum, void *buf) |
9a661b68 MK |
1058 | { |
1059 | const void *regbuf; | |
1060 | size_t size; | |
1061 | ||
1062 | gdb_assert (regcache != NULL && buf != NULL); | |
1063 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
1064 | ||
1065 | regbuf = register_buffer (regcache, regnum); | |
1066 | size = regcache->descr->sizeof_register[regnum]; | |
1067 | memcpy (buf, regbuf, size); | |
1068 | } | |
1069 | ||
0b309272 AA |
1070 | /* Transfer a single or all registers belonging to a certain register |
1071 | set to or from a buffer. This is the main worker function for | |
1072 | regcache_supply_regset and regcache_collect_regset. */ | |
1073 | ||
1074 | static void | |
1075 | regcache_transfer_regset (const struct regset *regset, | |
1076 | const struct regcache *regcache, | |
1077 | struct regcache *out_regcache, | |
1078 | int regnum, const void *in_buf, | |
1079 | void *out_buf, size_t size) | |
1080 | { | |
1081 | const struct regcache_map_entry *map; | |
1082 | int offs = 0, count; | |
1083 | ||
1084 | for (map = regset->regmap; (count = map->count) != 0; map++) | |
1085 | { | |
1086 | int regno = map->regno; | |
1087 | int slot_size = map->size; | |
1088 | ||
1089 | if (slot_size == 0 && regno != REGCACHE_MAP_SKIP) | |
1090 | slot_size = regcache->descr->sizeof_register[regno]; | |
1091 | ||
1092 | if (regno == REGCACHE_MAP_SKIP | |
1093 | || (regnum != -1 | |
1094 | && (regnum < regno || regnum >= regno + count))) | |
1095 | offs += count * slot_size; | |
1096 | ||
1097 | else if (regnum == -1) | |
1098 | for (; count--; regno++, offs += slot_size) | |
1099 | { | |
1100 | if (offs + slot_size > size) | |
1101 | break; | |
1102 | ||
1103 | if (out_buf) | |
1104 | regcache_raw_collect (regcache, regno, | |
1105 | (gdb_byte *) out_buf + offs); | |
1106 | else | |
1107 | regcache_raw_supply (out_regcache, regno, in_buf | |
1108 | ? (const gdb_byte *) in_buf + offs | |
1109 | : NULL); | |
1110 | } | |
1111 | else | |
1112 | { | |
1113 | /* Transfer a single register and return. */ | |
1114 | offs += (regnum - regno) * slot_size; | |
1115 | if (offs + slot_size > size) | |
1116 | return; | |
1117 | ||
1118 | if (out_buf) | |
1119 | regcache_raw_collect (regcache, regnum, | |
1120 | (gdb_byte *) out_buf + offs); | |
1121 | else | |
1122 | regcache_raw_supply (out_regcache, regnum, in_buf | |
1123 | ? (const gdb_byte *) in_buf + offs | |
1124 | : NULL); | |
1125 | return; | |
1126 | } | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | /* Supply register REGNUM from BUF to REGCACHE, using the register map | |
1131 | in REGSET. If REGNUM is -1, do this for all registers in REGSET. | |
1132 | If BUF is NULL, set the register(s) to "unavailable" status. */ | |
1133 | ||
1134 | void | |
1135 | regcache_supply_regset (const struct regset *regset, | |
1136 | struct regcache *regcache, | |
1137 | int regnum, const void *buf, size_t size) | |
1138 | { | |
1139 | regcache_transfer_regset (regset, regcache, regcache, regnum, | |
1140 | buf, NULL, size); | |
1141 | } | |
1142 | ||
1143 | /* Collect register REGNUM from REGCACHE to BUF, using the register | |
1144 | map in REGSET. If REGNUM is -1, do this for all registers in | |
1145 | REGSET. */ | |
1146 | ||
1147 | void | |
1148 | regcache_collect_regset (const struct regset *regset, | |
1149 | const struct regcache *regcache, | |
1150 | int regnum, void *buf, size_t size) | |
1151 | { | |
1152 | regcache_transfer_regset (regset, regcache, NULL, regnum, | |
1153 | NULL, buf, size); | |
1154 | } | |
1155 | ||
193cb69f | 1156 | |
515630c5 | 1157 | /* Special handling for register PC. */ |
32178cab MS |
1158 | |
1159 | CORE_ADDR | |
515630c5 | 1160 | regcache_read_pc (struct regcache *regcache) |
32178cab | 1161 | { |
61a1198a UW |
1162 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1163 | ||
32178cab MS |
1164 | CORE_ADDR pc_val; |
1165 | ||
61a1198a UW |
1166 | if (gdbarch_read_pc_p (gdbarch)) |
1167 | pc_val = gdbarch_read_pc (gdbarch, regcache); | |
cde9ea48 | 1168 | /* Else use per-frame method on get_current_frame. */ |
214e098a | 1169 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
cde9ea48 | 1170 | { |
61a1198a | 1171 | ULONGEST raw_val; |
123f5f96 | 1172 | |
05d1431c PA |
1173 | if (regcache_cooked_read_unsigned (regcache, |
1174 | gdbarch_pc_regnum (gdbarch), | |
1175 | &raw_val) == REG_UNAVAILABLE) | |
1176 | throw_error (NOT_AVAILABLE_ERROR, _("PC register is not available")); | |
1177 | ||
214e098a | 1178 | pc_val = gdbarch_addr_bits_remove (gdbarch, raw_val); |
cde9ea48 AC |
1179 | } |
1180 | else | |
515630c5 UW |
1181 | internal_error (__FILE__, __LINE__, |
1182 | _("regcache_read_pc: Unable to find PC")); | |
32178cab MS |
1183 | return pc_val; |
1184 | } | |
1185 | ||
32178cab | 1186 | void |
515630c5 | 1187 | regcache_write_pc (struct regcache *regcache, CORE_ADDR pc) |
32178cab | 1188 | { |
61a1198a UW |
1189 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1190 | ||
61a1198a UW |
1191 | if (gdbarch_write_pc_p (gdbarch)) |
1192 | gdbarch_write_pc (gdbarch, regcache, pc); | |
214e098a | 1193 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1194 | regcache_cooked_write_unsigned (regcache, |
214e098a | 1195 | gdbarch_pc_regnum (gdbarch), pc); |
61a1198a UW |
1196 | else |
1197 | internal_error (__FILE__, __LINE__, | |
515630c5 | 1198 | _("regcache_write_pc: Unable to update PC")); |
edb3359d DJ |
1199 | |
1200 | /* Writing the PC (for instance, from "load") invalidates the | |
1201 | current frame. */ | |
1202 | reinit_frame_cache (); | |
32178cab MS |
1203 | } |
1204 | ||
32178cab | 1205 | |
705152c5 MS |
1206 | static void |
1207 | reg_flush_command (char *command, int from_tty) | |
1208 | { | |
1209 | /* Force-flush the register cache. */ | |
1210 | registers_changed (); | |
1211 | if (from_tty) | |
a3f17187 | 1212 | printf_filtered (_("Register cache flushed.\n")); |
705152c5 MS |
1213 | } |
1214 | ||
af030b9a AC |
1215 | enum regcache_dump_what |
1216 | { | |
3e43a32a | 1217 | regcache_dump_none, regcache_dump_raw, |
c21236dc PA |
1218 | regcache_dump_cooked, regcache_dump_groups, |
1219 | regcache_dump_remote | |
af030b9a AC |
1220 | }; |
1221 | ||
1222 | static void | |
1223 | regcache_dump (struct regcache *regcache, struct ui_file *file, | |
1224 | enum regcache_dump_what what_to_dump) | |
1225 | { | |
1226 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); | |
b59ff9d5 | 1227 | struct gdbarch *gdbarch = regcache->descr->gdbarch; |
af030b9a AC |
1228 | int regnum; |
1229 | int footnote_nr = 0; | |
1230 | int footnote_register_size = 0; | |
1231 | int footnote_register_offset = 0; | |
1232 | int footnote_register_type_name_null = 0; | |
1233 | long register_offset = 0; | |
e362b510 | 1234 | gdb_byte buf[MAX_REGISTER_SIZE]; |
af030b9a AC |
1235 | |
1236 | #if 0 | |
af030b9a AC |
1237 | fprintf_unfiltered (file, "nr_raw_registers %d\n", |
1238 | regcache->descr->nr_raw_registers); | |
1239 | fprintf_unfiltered (file, "nr_cooked_registers %d\n", | |
1240 | regcache->descr->nr_cooked_registers); | |
1241 | fprintf_unfiltered (file, "sizeof_raw_registers %ld\n", | |
1242 | regcache->descr->sizeof_raw_registers); | |
ee99023e PA |
1243 | fprintf_unfiltered (file, "sizeof_raw_register_status %ld\n", |
1244 | regcache->descr->sizeof_raw_register_status); | |
f57d151a | 1245 | fprintf_unfiltered (file, "gdbarch_num_regs %d\n", |
214e098a | 1246 | gdbarch_num_regs (gdbarch)); |
f57d151a | 1247 | fprintf_unfiltered (file, "gdbarch_num_pseudo_regs %d\n", |
214e098a | 1248 | gdbarch_num_pseudo_regs (gdbarch)); |
af030b9a AC |
1249 | #endif |
1250 | ||
1251 | gdb_assert (regcache->descr->nr_cooked_registers | |
214e098a UW |
1252 | == (gdbarch_num_regs (gdbarch) |
1253 | + gdbarch_num_pseudo_regs (gdbarch))); | |
af030b9a AC |
1254 | |
1255 | for (regnum = -1; regnum < regcache->descr->nr_cooked_registers; regnum++) | |
1256 | { | |
1257 | /* Name. */ | |
1258 | if (regnum < 0) | |
1259 | fprintf_unfiltered (file, " %-10s", "Name"); | |
1260 | else | |
1261 | { | |
214e098a | 1262 | const char *p = gdbarch_register_name (gdbarch, regnum); |
123f5f96 | 1263 | |
af030b9a AC |
1264 | if (p == NULL) |
1265 | p = ""; | |
1266 | else if (p[0] == '\0') | |
1267 | p = "''"; | |
1268 | fprintf_unfiltered (file, " %-10s", p); | |
1269 | } | |
1270 | ||
1271 | /* Number. */ | |
1272 | if (regnum < 0) | |
1273 | fprintf_unfiltered (file, " %4s", "Nr"); | |
1274 | else | |
1275 | fprintf_unfiltered (file, " %4d", regnum); | |
1276 | ||
1277 | /* Relative number. */ | |
1278 | if (regnum < 0) | |
1279 | fprintf_unfiltered (file, " %4s", "Rel"); | |
214e098a | 1280 | else if (regnum < gdbarch_num_regs (gdbarch)) |
af030b9a AC |
1281 | fprintf_unfiltered (file, " %4d", regnum); |
1282 | else | |
f57d151a | 1283 | fprintf_unfiltered (file, " %4d", |
214e098a | 1284 | (regnum - gdbarch_num_regs (gdbarch))); |
af030b9a AC |
1285 | |
1286 | /* Offset. */ | |
1287 | if (regnum < 0) | |
1288 | fprintf_unfiltered (file, " %6s ", "Offset"); | |
1289 | else | |
1290 | { | |
1291 | fprintf_unfiltered (file, " %6ld", | |
1292 | regcache->descr->register_offset[regnum]); | |
a7e3c2ad | 1293 | if (register_offset != regcache->descr->register_offset[regnum] |
d3b22ed5 AC |
1294 | || (regnum > 0 |
1295 | && (regcache->descr->register_offset[regnum] | |
1296 | != (regcache->descr->register_offset[regnum - 1] | |
1297 | + regcache->descr->sizeof_register[regnum - 1]))) | |
1298 | ) | |
af030b9a AC |
1299 | { |
1300 | if (!footnote_register_offset) | |
1301 | footnote_register_offset = ++footnote_nr; | |
1302 | fprintf_unfiltered (file, "*%d", footnote_register_offset); | |
1303 | } | |
1304 | else | |
1305 | fprintf_unfiltered (file, " "); | |
1306 | register_offset = (regcache->descr->register_offset[regnum] | |
1307 | + regcache->descr->sizeof_register[regnum]); | |
1308 | } | |
1309 | ||
1310 | /* Size. */ | |
1311 | if (regnum < 0) | |
1312 | fprintf_unfiltered (file, " %5s ", "Size"); | |
1313 | else | |
01e1877c AC |
1314 | fprintf_unfiltered (file, " %5ld", |
1315 | regcache->descr->sizeof_register[regnum]); | |
af030b9a AC |
1316 | |
1317 | /* Type. */ | |
b59ff9d5 AC |
1318 | { |
1319 | const char *t; | |
123f5f96 | 1320 | |
b59ff9d5 AC |
1321 | if (regnum < 0) |
1322 | t = "Type"; | |
1323 | else | |
1324 | { | |
1325 | static const char blt[] = "builtin_type"; | |
123f5f96 | 1326 | |
b59ff9d5 AC |
1327 | t = TYPE_NAME (register_type (regcache->descr->gdbarch, regnum)); |
1328 | if (t == NULL) | |
1329 | { | |
1330 | char *n; | |
123f5f96 | 1331 | |
b59ff9d5 AC |
1332 | if (!footnote_register_type_name_null) |
1333 | footnote_register_type_name_null = ++footnote_nr; | |
b435e160 | 1334 | n = xstrprintf ("*%d", footnote_register_type_name_null); |
b59ff9d5 AC |
1335 | make_cleanup (xfree, n); |
1336 | t = n; | |
1337 | } | |
1338 | /* Chop a leading builtin_type. */ | |
1339 | if (strncmp (t, blt, strlen (blt)) == 0) | |
1340 | t += strlen (blt); | |
1341 | } | |
1342 | fprintf_unfiltered (file, " %-15s", t); | |
1343 | } | |
1344 | ||
1345 | /* Leading space always present. */ | |
1346 | fprintf_unfiltered (file, " "); | |
af030b9a AC |
1347 | |
1348 | /* Value, raw. */ | |
1349 | if (what_to_dump == regcache_dump_raw) | |
1350 | { | |
1351 | if (regnum < 0) | |
1352 | fprintf_unfiltered (file, "Raw value"); | |
1353 | else if (regnum >= regcache->descr->nr_raw_registers) | |
1354 | fprintf_unfiltered (file, "<cooked>"); | |
ee99023e | 1355 | else if (regcache_register_status (regcache, regnum) == REG_UNKNOWN) |
af030b9a | 1356 | fprintf_unfiltered (file, "<invalid>"); |
ee99023e PA |
1357 | else if (regcache_register_status (regcache, regnum) == REG_UNAVAILABLE) |
1358 | fprintf_unfiltered (file, "<unavailable>"); | |
af030b9a AC |
1359 | else |
1360 | { | |
1361 | regcache_raw_read (regcache, regnum, buf); | |
d3eaaf66 AB |
1362 | print_hex_chars (file, buf, |
1363 | regcache->descr->sizeof_register[regnum], | |
1364 | gdbarch_byte_order (gdbarch)); | |
af030b9a AC |
1365 | } |
1366 | } | |
1367 | ||
1368 | /* Value, cooked. */ | |
1369 | if (what_to_dump == regcache_dump_cooked) | |
1370 | { | |
1371 | if (regnum < 0) | |
1372 | fprintf_unfiltered (file, "Cooked value"); | |
1373 | else | |
1374 | { | |
05d1431c PA |
1375 | enum register_status status; |
1376 | ||
1377 | status = regcache_cooked_read (regcache, regnum, buf); | |
1378 | if (status == REG_UNKNOWN) | |
1379 | fprintf_unfiltered (file, "<invalid>"); | |
1380 | else if (status == REG_UNAVAILABLE) | |
1381 | fprintf_unfiltered (file, "<unavailable>"); | |
1382 | else | |
d3eaaf66 AB |
1383 | print_hex_chars (file, buf, |
1384 | regcache->descr->sizeof_register[regnum], | |
1385 | gdbarch_byte_order (gdbarch)); | |
af030b9a AC |
1386 | } |
1387 | } | |
1388 | ||
b59ff9d5 AC |
1389 | /* Group members. */ |
1390 | if (what_to_dump == regcache_dump_groups) | |
1391 | { | |
1392 | if (regnum < 0) | |
1393 | fprintf_unfiltered (file, "Groups"); | |
1394 | else | |
1395 | { | |
b59ff9d5 | 1396 | const char *sep = ""; |
6c7d17ba | 1397 | struct reggroup *group; |
123f5f96 | 1398 | |
6c7d17ba AC |
1399 | for (group = reggroup_next (gdbarch, NULL); |
1400 | group != NULL; | |
1401 | group = reggroup_next (gdbarch, group)) | |
b59ff9d5 | 1402 | { |
6c7d17ba | 1403 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
b59ff9d5 | 1404 | { |
3e43a32a MS |
1405 | fprintf_unfiltered (file, |
1406 | "%s%s", sep, reggroup_name (group)); | |
b59ff9d5 AC |
1407 | sep = ","; |
1408 | } | |
1409 | } | |
1410 | } | |
1411 | } | |
1412 | ||
c21236dc PA |
1413 | /* Remote packet configuration. */ |
1414 | if (what_to_dump == regcache_dump_remote) | |
1415 | { | |
1416 | if (regnum < 0) | |
1417 | { | |
1418 | fprintf_unfiltered (file, "Rmt Nr g/G Offset"); | |
1419 | } | |
1420 | else if (regnum < regcache->descr->nr_raw_registers) | |
1421 | { | |
1422 | int pnum, poffset; | |
1423 | ||
1424 | if (remote_register_number_and_offset (get_regcache_arch (regcache), regnum, | |
1425 | &pnum, &poffset)) | |
1426 | fprintf_unfiltered (file, "%7d %11d", pnum, poffset); | |
1427 | } | |
1428 | } | |
1429 | ||
af030b9a AC |
1430 | fprintf_unfiltered (file, "\n"); |
1431 | } | |
1432 | ||
1433 | if (footnote_register_size) | |
1434 | fprintf_unfiltered (file, "*%d: Inconsistent register sizes.\n", | |
1435 | footnote_register_size); | |
1436 | if (footnote_register_offset) | |
1437 | fprintf_unfiltered (file, "*%d: Inconsistent register offsets.\n", | |
1438 | footnote_register_offset); | |
1439 | if (footnote_register_type_name_null) | |
1440 | fprintf_unfiltered (file, | |
1441 | "*%d: Register type's name NULL.\n", | |
1442 | footnote_register_type_name_null); | |
1443 | do_cleanups (cleanups); | |
1444 | } | |
1445 | ||
1446 | static void | |
1447 | regcache_print (char *args, enum regcache_dump_what what_to_dump) | |
1448 | { | |
1449 | if (args == NULL) | |
28c38f10 | 1450 | regcache_dump (get_current_regcache (), gdb_stdout, what_to_dump); |
af030b9a AC |
1451 | else |
1452 | { | |
724b958c | 1453 | struct cleanup *cleanups; |
af030b9a | 1454 | struct ui_file *file = gdb_fopen (args, "w"); |
123f5f96 | 1455 | |
af030b9a | 1456 | if (file == NULL) |
e2e0b3e5 | 1457 | perror_with_name (_("maintenance print architecture")); |
724b958c | 1458 | cleanups = make_cleanup_ui_file_delete (file); |
28c38f10 | 1459 | regcache_dump (get_current_regcache (), file, what_to_dump); |
724b958c | 1460 | do_cleanups (cleanups); |
af030b9a AC |
1461 | } |
1462 | } | |
1463 | ||
1464 | static void | |
1465 | maintenance_print_registers (char *args, int from_tty) | |
1466 | { | |
1467 | regcache_print (args, regcache_dump_none); | |
1468 | } | |
1469 | ||
1470 | static void | |
1471 | maintenance_print_raw_registers (char *args, int from_tty) | |
1472 | { | |
1473 | regcache_print (args, regcache_dump_raw); | |
1474 | } | |
1475 | ||
1476 | static void | |
1477 | maintenance_print_cooked_registers (char *args, int from_tty) | |
1478 | { | |
1479 | regcache_print (args, regcache_dump_cooked); | |
1480 | } | |
1481 | ||
b59ff9d5 AC |
1482 | static void |
1483 | maintenance_print_register_groups (char *args, int from_tty) | |
1484 | { | |
1485 | regcache_print (args, regcache_dump_groups); | |
1486 | } | |
1487 | ||
c21236dc PA |
1488 | static void |
1489 | maintenance_print_remote_registers (char *args, int from_tty) | |
1490 | { | |
1491 | regcache_print (args, regcache_dump_remote); | |
1492 | } | |
1493 | ||
b9362cc7 AC |
1494 | extern initialize_file_ftype _initialize_regcache; /* -Wmissing-prototype */ |
1495 | ||
32178cab MS |
1496 | void |
1497 | _initialize_regcache (void) | |
1498 | { | |
3e43a32a MS |
1499 | regcache_descr_handle |
1500 | = gdbarch_data_register_post_init (init_regcache_descr); | |
705152c5 | 1501 | |
f4c5303c | 1502 | observer_attach_target_changed (regcache_observer_target_changed); |
5231c1fd | 1503 | observer_attach_thread_ptid_changed (regcache_thread_ptid_changed); |
f4c5303c | 1504 | |
705152c5 | 1505 | add_com ("flushregs", class_maintenance, reg_flush_command, |
1bedd215 | 1506 | _("Force gdb to flush its register cache (maintainer command)")); |
39f77062 | 1507 | |
3e43a32a MS |
1508 | add_cmd ("registers", class_maintenance, maintenance_print_registers, |
1509 | _("Print the internal register configuration.\n" | |
1510 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 1511 | add_cmd ("raw-registers", class_maintenance, |
3e43a32a MS |
1512 | maintenance_print_raw_registers, |
1513 | _("Print the internal register configuration " | |
1514 | "including raw values.\n" | |
1515 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 1516 | add_cmd ("cooked-registers", class_maintenance, |
3e43a32a MS |
1517 | maintenance_print_cooked_registers, |
1518 | _("Print the internal register configuration " | |
1519 | "including cooked values.\n" | |
1520 | "Takes an optional file parameter."), &maintenanceprintlist); | |
b59ff9d5 | 1521 | add_cmd ("register-groups", class_maintenance, |
3e43a32a MS |
1522 | maintenance_print_register_groups, |
1523 | _("Print the internal register configuration " | |
1524 | "including each register's group.\n" | |
1525 | "Takes an optional file parameter."), | |
af030b9a | 1526 | &maintenanceprintlist); |
c21236dc PA |
1527 | add_cmd ("remote-registers", class_maintenance, |
1528 | maintenance_print_remote_registers, _("\ | |
1529 | Print the internal register configuration including each register's\n\ | |
1530 | remote register number and buffer offset in the g/G packets.\n\ | |
1531 | Takes an optional file parameter."), | |
1532 | &maintenanceprintlist); | |
af030b9a | 1533 | |
32178cab | 1534 | } |