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32178cab | 1 | /* Cache and manage the values of registers for GDB, the GNU debugger. |
3fadccb3 | 2 | |
32d0add0 | 3 | Copyright (C) 1986-2015 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" |
c21236dc | 28 | #include "remote.h" |
d3eaaf66 | 29 | #include "valprint.h" |
0b309272 | 30 | #include "regset.h" |
32178cab MS |
31 | |
32 | /* | |
33 | * DATA STRUCTURE | |
34 | * | |
35 | * Here is the actual register cache. | |
36 | */ | |
37 | ||
3fadccb3 | 38 | /* Per-architecture object describing the layout of a register cache. |
0df8b418 | 39 | Computed once when the architecture is created. */ |
3fadccb3 AC |
40 | |
41 | struct gdbarch_data *regcache_descr_handle; | |
42 | ||
43 | struct regcache_descr | |
44 | { | |
45 | /* The architecture this descriptor belongs to. */ | |
46 | struct gdbarch *gdbarch; | |
47 | ||
bb1db049 AC |
48 | /* The raw register cache. Each raw (or hard) register is supplied |
49 | by the target interface. The raw cache should not contain | |
50 | redundant information - if the PC is constructed from two | |
d2f0b918 | 51 | registers then those registers and not the PC lives in the raw |
bb1db049 | 52 | cache. */ |
3fadccb3 AC |
53 | int nr_raw_registers; |
54 | long sizeof_raw_registers; | |
ee99023e | 55 | long sizeof_raw_register_status; |
3fadccb3 | 56 | |
d138e37a AC |
57 | /* The cooked register space. Each cooked register in the range |
58 | [0..NR_RAW_REGISTERS) is direct-mapped onto the corresponding raw | |
59 | register. The remaining [NR_RAW_REGISTERS | |
02f60eae | 60 | .. NR_COOKED_REGISTERS) (a.k.a. pseudo registers) are mapped onto |
d138e37a | 61 | both raw registers and memory by the architecture methods |
02f60eae | 62 | gdbarch_pseudo_register_read and gdbarch_pseudo_register_write. */ |
d138e37a | 63 | int nr_cooked_registers; |
067df2e5 | 64 | long sizeof_cooked_registers; |
ee99023e | 65 | long sizeof_cooked_register_status; |
d138e37a | 66 | |
86d31898 | 67 | /* Offset and size (in 8 bit bytes), of each register in the |
d138e37a | 68 | register cache. All registers (including those in the range |
99e42fd8 PA |
69 | [NR_RAW_REGISTERS .. NR_COOKED_REGISTERS) are given an |
70 | offset. */ | |
3fadccb3 | 71 | long *register_offset; |
3fadccb3 | 72 | long *sizeof_register; |
3fadccb3 | 73 | |
bb425013 AC |
74 | /* Cached table containing the type of each register. */ |
75 | struct type **register_type; | |
3fadccb3 AC |
76 | }; |
77 | ||
3fadccb3 AC |
78 | static void * |
79 | init_regcache_descr (struct gdbarch *gdbarch) | |
80 | { | |
81 | int i; | |
82 | struct regcache_descr *descr; | |
83 | gdb_assert (gdbarch != NULL); | |
84 | ||
bb425013 | 85 | /* Create an initial, zero filled, table. */ |
116f06ea | 86 | descr = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct regcache_descr); |
3fadccb3 | 87 | descr->gdbarch = gdbarch; |
3fadccb3 | 88 | |
d138e37a AC |
89 | /* Total size of the register space. The raw registers are mapped |
90 | directly onto the raw register cache while the pseudo's are | |
3fadccb3 | 91 | either mapped onto raw-registers or memory. */ |
214e098a UW |
92 | descr->nr_cooked_registers = gdbarch_num_regs (gdbarch) |
93 | + gdbarch_num_pseudo_regs (gdbarch); | |
ee99023e PA |
94 | descr->sizeof_cooked_register_status |
95 | = gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch); | |
3fadccb3 | 96 | |
bb425013 | 97 | /* Fill in a table of register types. */ |
116f06ea | 98 | descr->register_type |
3e43a32a MS |
99 | = GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, |
100 | struct type *); | |
bb425013 | 101 | for (i = 0; i < descr->nr_cooked_registers; i++) |
336a3131 | 102 | descr->register_type[i] = gdbarch_register_type (gdbarch, i); |
bb425013 | 103 | |
bb1db049 AC |
104 | /* Construct a strictly RAW register cache. Don't allow pseudo's |
105 | into the register cache. */ | |
214e098a | 106 | descr->nr_raw_registers = gdbarch_num_regs (gdbarch); |
ee99023e | 107 | descr->sizeof_raw_register_status = gdbarch_num_regs (gdbarch); |
bb1db049 | 108 | |
067df2e5 | 109 | /* Lay out the register cache. |
3fadccb3 | 110 | |
bb425013 AC |
111 | NOTE: cagney/2002-05-22: Only register_type() is used when |
112 | constructing the register cache. It is assumed that the | |
113 | register's raw size, virtual size and type length are all the | |
114 | same. */ | |
3fadccb3 AC |
115 | |
116 | { | |
117 | long offset = 0; | |
123f5f96 | 118 | |
116f06ea AC |
119 | descr->sizeof_register |
120 | = GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, long); | |
121 | descr->register_offset | |
122 | = GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, long); | |
99e42fd8 PA |
123 | for (i = 0; i < descr->nr_raw_registers; i++) |
124 | { | |
125 | descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]); | |
126 | descr->register_offset[i] = offset; | |
127 | offset += descr->sizeof_register[i]; | |
128 | gdb_assert (MAX_REGISTER_SIZE >= descr->sizeof_register[i]); | |
129 | } | |
130 | /* Set the real size of the raw register cache buffer. */ | |
131 | descr->sizeof_raw_registers = offset; | |
132 | ||
133 | for (; i < descr->nr_cooked_registers; i++) | |
3fadccb3 | 134 | { |
bb425013 | 135 | descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]); |
3fadccb3 AC |
136 | descr->register_offset[i] = offset; |
137 | offset += descr->sizeof_register[i]; | |
123a958e | 138 | gdb_assert (MAX_REGISTER_SIZE >= descr->sizeof_register[i]); |
3fadccb3 | 139 | } |
99e42fd8 | 140 | /* Set the real size of the readonly register cache buffer. */ |
067df2e5 | 141 | descr->sizeof_cooked_registers = offset; |
3fadccb3 AC |
142 | } |
143 | ||
3fadccb3 AC |
144 | return descr; |
145 | } | |
146 | ||
147 | static struct regcache_descr * | |
148 | regcache_descr (struct gdbarch *gdbarch) | |
149 | { | |
150 | return gdbarch_data (gdbarch, regcache_descr_handle); | |
151 | } | |
152 | ||
bb425013 AC |
153 | /* Utility functions returning useful register attributes stored in |
154 | the regcache descr. */ | |
155 | ||
156 | struct type * | |
157 | register_type (struct gdbarch *gdbarch, int regnum) | |
158 | { | |
159 | struct regcache_descr *descr = regcache_descr (gdbarch); | |
123f5f96 | 160 | |
bb425013 AC |
161 | gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers); |
162 | return descr->register_type[regnum]; | |
163 | } | |
164 | ||
0ed04cce AC |
165 | /* Utility functions returning useful register attributes stored in |
166 | the regcache descr. */ | |
167 | ||
08a617da AC |
168 | int |
169 | register_size (struct gdbarch *gdbarch, int regnum) | |
170 | { | |
171 | struct regcache_descr *descr = regcache_descr (gdbarch); | |
172 | int size; | |
123f5f96 | 173 | |
f57d151a | 174 | gdb_assert (regnum >= 0 |
214e098a UW |
175 | && regnum < (gdbarch_num_regs (gdbarch) |
176 | + gdbarch_num_pseudo_regs (gdbarch))); | |
08a617da | 177 | size = descr->sizeof_register[regnum]; |
08a617da AC |
178 | return size; |
179 | } | |
180 | ||
3fadccb3 AC |
181 | /* The register cache for storing raw register values. */ |
182 | ||
183 | struct regcache | |
184 | { | |
185 | struct regcache_descr *descr; | |
6c95b8df PA |
186 | |
187 | /* The address space of this register cache (for registers where it | |
188 | makes sense, like PC or SP). */ | |
189 | struct address_space *aspace; | |
190 | ||
51b1fe4e | 191 | /* The register buffers. A read-only register cache can hold the |
f57d151a UW |
192 | full [0 .. gdbarch_num_regs + gdbarch_num_pseudo_regs) while a read/write |
193 | register cache can only hold [0 .. gdbarch_num_regs). */ | |
2d522557 | 194 | gdb_byte *registers; |
ee99023e PA |
195 | /* Register cache status. */ |
196 | signed char *register_status; | |
2d28509a AC |
197 | /* Is this a read-only cache? A read-only cache is used for saving |
198 | the target's register state (e.g, across an inferior function | |
199 | call or just before forcing a function return). A read-only | |
200 | cache can only be updated via the methods regcache_dup() and | |
201 | regcache_cpy(). The actual contents are determined by the | |
202 | reggroup_save and reggroup_restore methods. */ | |
203 | int readonly_p; | |
594f7785 UW |
204 | /* If this is a read-write cache, which thread's registers is |
205 | it connected to? */ | |
206 | ptid_t ptid; | |
3fadccb3 AC |
207 | }; |
208 | ||
99e42fd8 PA |
209 | static struct regcache * |
210 | regcache_xmalloc_1 (struct gdbarch *gdbarch, struct address_space *aspace, | |
211 | int readonly_p) | |
3fadccb3 AC |
212 | { |
213 | struct regcache_descr *descr; | |
214 | struct regcache *regcache; | |
123f5f96 | 215 | |
3fadccb3 AC |
216 | gdb_assert (gdbarch != NULL); |
217 | descr = regcache_descr (gdbarch); | |
70ba0933 | 218 | regcache = XNEW (struct regcache); |
3fadccb3 | 219 | regcache->descr = descr; |
99e42fd8 PA |
220 | regcache->readonly_p = readonly_p; |
221 | if (readonly_p) | |
222 | { | |
223 | regcache->registers | |
fc270c35 | 224 | = XCNEWVEC (gdb_byte, descr->sizeof_cooked_registers); |
ee99023e | 225 | regcache->register_status |
fc270c35 | 226 | = XCNEWVEC (signed char, descr->sizeof_cooked_register_status); |
99e42fd8 PA |
227 | } |
228 | else | |
229 | { | |
230 | regcache->registers | |
fc270c35 | 231 | = XCNEWVEC (gdb_byte, descr->sizeof_raw_registers); |
ee99023e | 232 | regcache->register_status |
fc270c35 | 233 | = XCNEWVEC (signed char, descr->sizeof_raw_register_status); |
99e42fd8 | 234 | } |
d37346f0 | 235 | regcache->aspace = aspace; |
594f7785 | 236 | regcache->ptid = minus_one_ptid; |
3fadccb3 AC |
237 | return regcache; |
238 | } | |
239 | ||
99e42fd8 PA |
240 | struct regcache * |
241 | regcache_xmalloc (struct gdbarch *gdbarch, struct address_space *aspace) | |
242 | { | |
243 | return regcache_xmalloc_1 (gdbarch, aspace, 1); | |
244 | } | |
245 | ||
3fadccb3 AC |
246 | void |
247 | regcache_xfree (struct regcache *regcache) | |
248 | { | |
249 | if (regcache == NULL) | |
250 | return; | |
51b1fe4e | 251 | xfree (regcache->registers); |
ee99023e | 252 | xfree (regcache->register_status); |
3fadccb3 AC |
253 | xfree (regcache); |
254 | } | |
255 | ||
b9362cc7 | 256 | static void |
36160dc4 AC |
257 | do_regcache_xfree (void *data) |
258 | { | |
259 | regcache_xfree (data); | |
260 | } | |
261 | ||
262 | struct cleanup * | |
263 | make_cleanup_regcache_xfree (struct regcache *regcache) | |
264 | { | |
265 | return make_cleanup (do_regcache_xfree, regcache); | |
266 | } | |
267 | ||
b94ade42 PL |
268 | /* Cleanup routines for invalidating a register. */ |
269 | ||
270 | struct register_to_invalidate | |
271 | { | |
272 | struct regcache *regcache; | |
273 | int regnum; | |
274 | }; | |
275 | ||
276 | static void | |
277 | do_regcache_invalidate (void *data) | |
278 | { | |
279 | struct register_to_invalidate *reg = data; | |
280 | ||
281 | regcache_invalidate (reg->regcache, reg->regnum); | |
282 | } | |
283 | ||
284 | static struct cleanup * | |
285 | make_cleanup_regcache_invalidate (struct regcache *regcache, int regnum) | |
286 | { | |
287 | struct register_to_invalidate* reg = XNEW (struct register_to_invalidate); | |
288 | ||
289 | reg->regcache = regcache; | |
290 | reg->regnum = regnum; | |
291 | return make_cleanup_dtor (do_regcache_invalidate, (void *) reg, xfree); | |
292 | } | |
293 | ||
41d35cb0 MK |
294 | /* Return REGCACHE's architecture. */ |
295 | ||
296 | struct gdbarch * | |
297 | get_regcache_arch (const struct regcache *regcache) | |
298 | { | |
299 | return regcache->descr->gdbarch; | |
300 | } | |
301 | ||
6c95b8df PA |
302 | struct address_space * |
303 | get_regcache_aspace (const struct regcache *regcache) | |
304 | { | |
305 | return regcache->aspace; | |
306 | } | |
307 | ||
51b1fe4e AC |
308 | /* Return a pointer to register REGNUM's buffer cache. */ |
309 | ||
2d522557 | 310 | static gdb_byte * |
9a661b68 | 311 | register_buffer (const struct regcache *regcache, int regnum) |
51b1fe4e AC |
312 | { |
313 | return regcache->registers + regcache->descr->register_offset[regnum]; | |
314 | } | |
315 | ||
2d28509a | 316 | void |
5602984a AC |
317 | regcache_save (struct regcache *dst, regcache_cooked_read_ftype *cooked_read, |
318 | void *src) | |
2d28509a AC |
319 | { |
320 | struct gdbarch *gdbarch = dst->descr->gdbarch; | |
2d522557 | 321 | gdb_byte buf[MAX_REGISTER_SIZE]; |
2d28509a | 322 | int regnum; |
123f5f96 | 323 | |
2d28509a | 324 | /* The DST should be `read-only', if it wasn't then the save would |
5602984a | 325 | end up trying to write the register values back out to the |
2d28509a | 326 | target. */ |
2d28509a AC |
327 | gdb_assert (dst->readonly_p); |
328 | /* Clear the dest. */ | |
329 | memset (dst->registers, 0, dst->descr->sizeof_cooked_registers); | |
ee99023e PA |
330 | memset (dst->register_status, 0, |
331 | dst->descr->sizeof_cooked_register_status); | |
2d28509a | 332 | /* Copy over any registers (identified by their membership in the |
f57d151a UW |
333 | save_reggroup) and mark them as valid. The full [0 .. gdbarch_num_regs + |
334 | gdbarch_num_pseudo_regs) range is checked since some architectures need | |
5602984a | 335 | to save/restore `cooked' registers that live in memory. */ |
2d28509a AC |
336 | for (regnum = 0; regnum < dst->descr->nr_cooked_registers; regnum++) |
337 | { | |
338 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
339 | { | |
05d1431c | 340 | enum register_status status = cooked_read (src, regnum, buf); |
123f5f96 | 341 | |
05d1431c PA |
342 | if (status == REG_VALID) |
343 | memcpy (register_buffer (dst, regnum), buf, | |
344 | register_size (gdbarch, regnum)); | |
345 | else | |
5602984a | 346 | { |
05d1431c PA |
347 | gdb_assert (status != REG_UNKNOWN); |
348 | ||
349 | memset (register_buffer (dst, regnum), 0, | |
5602984a | 350 | register_size (gdbarch, regnum)); |
5602984a | 351 | } |
05d1431c | 352 | dst->register_status[regnum] = status; |
2d28509a AC |
353 | } |
354 | } | |
355 | } | |
356 | ||
349d1385 | 357 | static void |
5602984a AC |
358 | regcache_restore (struct regcache *dst, |
359 | regcache_cooked_read_ftype *cooked_read, | |
2d522557 | 360 | void *cooked_read_context) |
2d28509a AC |
361 | { |
362 | struct gdbarch *gdbarch = dst->descr->gdbarch; | |
2d522557 | 363 | gdb_byte buf[MAX_REGISTER_SIZE]; |
2d28509a | 364 | int regnum; |
123f5f96 | 365 | |
5602984a AC |
366 | /* The dst had better not be read-only. If it is, the `restore' |
367 | doesn't make much sense. */ | |
2d28509a | 368 | gdb_assert (!dst->readonly_p); |
2d28509a | 369 | /* Copy over any registers, being careful to only restore those that |
f57d151a UW |
370 | were both saved and need to be restored. The full [0 .. gdbarch_num_regs |
371 | + gdbarch_num_pseudo_regs) range is checked since some architectures need | |
5602984a AC |
372 | to save/restore `cooked' registers that live in memory. */ |
373 | for (regnum = 0; regnum < dst->descr->nr_cooked_registers; regnum++) | |
2d28509a | 374 | { |
5602984a | 375 | if (gdbarch_register_reggroup_p (gdbarch, regnum, restore_reggroup)) |
2d28509a | 376 | { |
349d1385 | 377 | enum register_status status; |
123f5f96 | 378 | |
349d1385 DM |
379 | status = cooked_read (cooked_read_context, regnum, buf); |
380 | if (status == REG_VALID) | |
5602984a | 381 | regcache_cooked_write (dst, regnum, buf); |
2d28509a AC |
382 | } |
383 | } | |
384 | } | |
385 | ||
05d1431c | 386 | static enum register_status |
2d522557 | 387 | do_cooked_read (void *src, int regnum, gdb_byte *buf) |
5602984a AC |
388 | { |
389 | struct regcache *regcache = src; | |
123f5f96 | 390 | |
05d1431c | 391 | return regcache_cooked_read (regcache, regnum, buf); |
5602984a AC |
392 | } |
393 | ||
3fadccb3 AC |
394 | void |
395 | regcache_cpy (struct regcache *dst, struct regcache *src) | |
396 | { | |
3fadccb3 AC |
397 | gdb_assert (src != NULL && dst != NULL); |
398 | gdb_assert (src->descr->gdbarch == dst->descr->gdbarch); | |
399 | gdb_assert (src != dst); | |
2d28509a | 400 | gdb_assert (src->readonly_p || dst->readonly_p); |
6c95b8df | 401 | |
2d28509a | 402 | if (!src->readonly_p) |
5602984a | 403 | regcache_save (dst, do_cooked_read, src); |
2d28509a | 404 | else if (!dst->readonly_p) |
5602984a | 405 | regcache_restore (dst, do_cooked_read, src); |
2d28509a AC |
406 | else |
407 | regcache_cpy_no_passthrough (dst, src); | |
3fadccb3 AC |
408 | } |
409 | ||
410 | void | |
411 | regcache_cpy_no_passthrough (struct regcache *dst, struct regcache *src) | |
412 | { | |
3fadccb3 AC |
413 | gdb_assert (src != NULL && dst != NULL); |
414 | gdb_assert (src->descr->gdbarch == dst->descr->gdbarch); | |
415 | /* NOTE: cagney/2002-05-17: Don't let the caller do a no-passthrough | |
ee99023e PA |
416 | move of data into a thread's regcache. Doing this would be silly |
417 | - it would mean that regcache->register_status would be | |
418 | completely invalid. */ | |
99e42fd8 | 419 | gdb_assert (dst->readonly_p && src->readonly_p); |
6c95b8df | 420 | |
99e42fd8 PA |
421 | memcpy (dst->registers, src->registers, |
422 | dst->descr->sizeof_cooked_registers); | |
ee99023e PA |
423 | memcpy (dst->register_status, src->register_status, |
424 | dst->descr->sizeof_cooked_register_status); | |
3fadccb3 AC |
425 | } |
426 | ||
427 | struct regcache * | |
428 | regcache_dup (struct regcache *src) | |
429 | { | |
430 | struct regcache *newbuf; | |
123f5f96 | 431 | |
d37346f0 | 432 | newbuf = regcache_xmalloc (src->descr->gdbarch, get_regcache_aspace (src)); |
3fadccb3 AC |
433 | regcache_cpy (newbuf, src); |
434 | return newbuf; | |
435 | } | |
436 | ||
39181896 | 437 | enum register_status |
ee99023e | 438 | regcache_register_status (const struct regcache *regcache, int regnum) |
3fadccb3 AC |
439 | { |
440 | gdb_assert (regcache != NULL); | |
6ed7ea50 UW |
441 | gdb_assert (regnum >= 0); |
442 | if (regcache->readonly_p) | |
443 | gdb_assert (regnum < regcache->descr->nr_cooked_registers); | |
444 | else | |
445 | gdb_assert (regnum < regcache->descr->nr_raw_registers); | |
446 | ||
ee99023e | 447 | return regcache->register_status[regnum]; |
3fadccb3 AC |
448 | } |
449 | ||
9c5ea4d9 UW |
450 | void |
451 | regcache_invalidate (struct regcache *regcache, int regnum) | |
452 | { | |
453 | gdb_assert (regcache != NULL); | |
454 | gdb_assert (regnum >= 0); | |
455 | gdb_assert (!regcache->readonly_p); | |
456 | gdb_assert (regnum < regcache->descr->nr_raw_registers); | |
ee99023e | 457 | regcache->register_status[regnum] = REG_UNKNOWN; |
9c5ea4d9 UW |
458 | } |
459 | ||
460 | ||
3fadccb3 | 461 | /* Global structure containing the current regcache. */ |
3fadccb3 | 462 | |
5ebd2499 | 463 | /* NOTE: this is a write-through cache. There is no "dirty" bit for |
32178cab MS |
464 | recording if the register values have been changed (eg. by the |
465 | user). Therefore all registers must be written back to the | |
466 | target when appropriate. */ | |
467 | ||
c2250ad1 | 468 | struct regcache_list |
594f7785 | 469 | { |
c2250ad1 UW |
470 | struct regcache *regcache; |
471 | struct regcache_list *next; | |
472 | }; | |
473 | ||
474 | static struct regcache_list *current_regcache; | |
475 | ||
476 | struct regcache * | |
e2d96639 YQ |
477 | get_thread_arch_aspace_regcache (ptid_t ptid, struct gdbarch *gdbarch, |
478 | struct address_space *aspace) | |
c2250ad1 UW |
479 | { |
480 | struct regcache_list *list; | |
481 | struct regcache *new_regcache; | |
594f7785 | 482 | |
c2250ad1 UW |
483 | for (list = current_regcache; list; list = list->next) |
484 | if (ptid_equal (list->regcache->ptid, ptid) | |
485 | && get_regcache_arch (list->regcache) == gdbarch) | |
486 | return list->regcache; | |
594f7785 | 487 | |
e2d96639 YQ |
488 | new_regcache = regcache_xmalloc_1 (gdbarch, aspace, 0); |
489 | new_regcache->ptid = ptid; | |
490 | ||
491 | list = xmalloc (sizeof (struct regcache_list)); | |
492 | list->regcache = new_regcache; | |
493 | list->next = current_regcache; | |
494 | current_regcache = list; | |
495 | ||
496 | return new_regcache; | |
497 | } | |
498 | ||
499 | struct regcache * | |
500 | get_thread_arch_regcache (ptid_t ptid, struct gdbarch *gdbarch) | |
501 | { | |
502 | struct address_space *aspace; | |
503 | ||
b78974c3 PA |
504 | /* For the benefit of "maint print registers" & co when debugging an |
505 | executable, allow dumping the regcache even when there is no | |
506 | thread selected (target_thread_address_space internal-errors if | |
507 | no address space is found). Note that normal user commands will | |
508 | fail higher up on the call stack due to no | |
509 | target_has_registers. */ | |
510 | aspace = (ptid_equal (null_ptid, ptid) | |
511 | ? NULL | |
512 | : target_thread_address_space (ptid)); | |
513 | ||
e2d96639 | 514 | return get_thread_arch_aspace_regcache (ptid, gdbarch, aspace); |
594f7785 UW |
515 | } |
516 | ||
c2250ad1 UW |
517 | static ptid_t current_thread_ptid; |
518 | static struct gdbarch *current_thread_arch; | |
519 | ||
520 | struct regcache * | |
521 | get_thread_regcache (ptid_t ptid) | |
522 | { | |
523 | if (!current_thread_arch || !ptid_equal (current_thread_ptid, ptid)) | |
524 | { | |
525 | current_thread_ptid = ptid; | |
526 | current_thread_arch = target_thread_architecture (ptid); | |
527 | } | |
528 | ||
529 | return get_thread_arch_regcache (ptid, current_thread_arch); | |
530 | } | |
531 | ||
532 | struct regcache * | |
533 | get_current_regcache (void) | |
594f7785 UW |
534 | { |
535 | return get_thread_regcache (inferior_ptid); | |
536 | } | |
32178cab | 537 | |
361c8ade GB |
538 | /* See common/common-regcache.h. */ |
539 | ||
540 | struct regcache * | |
541 | get_thread_regcache_for_ptid (ptid_t ptid) | |
542 | { | |
543 | return get_thread_regcache (ptid); | |
544 | } | |
32178cab | 545 | |
f4c5303c OF |
546 | /* Observer for the target_changed event. */ |
547 | ||
2c0b251b | 548 | static void |
f4c5303c OF |
549 | regcache_observer_target_changed (struct target_ops *target) |
550 | { | |
551 | registers_changed (); | |
552 | } | |
553 | ||
5231c1fd PA |
554 | /* Update global variables old ptids to hold NEW_PTID if they were |
555 | holding OLD_PTID. */ | |
556 | static void | |
557 | regcache_thread_ptid_changed (ptid_t old_ptid, ptid_t new_ptid) | |
558 | { | |
c2250ad1 UW |
559 | struct regcache_list *list; |
560 | ||
561 | for (list = current_regcache; list; list = list->next) | |
562 | if (ptid_equal (list->regcache->ptid, old_ptid)) | |
563 | list->regcache->ptid = new_ptid; | |
5231c1fd PA |
564 | } |
565 | ||
32178cab MS |
566 | /* Low level examining and depositing of registers. |
567 | ||
568 | The caller is responsible for making sure that the inferior is | |
569 | stopped before calling the fetching routines, or it will get | |
570 | garbage. (a change from GDB version 3, in which the caller got the | |
571 | value from the last stop). */ | |
572 | ||
573 | /* REGISTERS_CHANGED () | |
574 | ||
575 | Indicate that registers may have changed, so invalidate the cache. */ | |
576 | ||
577 | void | |
e66408ed | 578 | registers_changed_ptid (ptid_t ptid) |
32178cab | 579 | { |
e66408ed | 580 | struct regcache_list *list, **list_link; |
c2250ad1 | 581 | |
e66408ed PA |
582 | list = current_regcache; |
583 | list_link = ¤t_regcache; | |
584 | while (list) | |
c2250ad1 | 585 | { |
e66408ed PA |
586 | if (ptid_match (list->regcache->ptid, ptid)) |
587 | { | |
588 | struct regcache_list *dead = list; | |
589 | ||
590 | *list_link = list->next; | |
591 | regcache_xfree (list->regcache); | |
592 | list = *list_link; | |
593 | xfree (dead); | |
594 | continue; | |
595 | } | |
596 | ||
597 | list_link = &list->next; | |
598 | list = *list_link; | |
c2250ad1 | 599 | } |
32178cab | 600 | |
c34fd852 | 601 | if (ptid_match (current_thread_ptid, ptid)) |
041274d8 PA |
602 | { |
603 | current_thread_ptid = null_ptid; | |
604 | current_thread_arch = NULL; | |
605 | } | |
32178cab | 606 | |
c34fd852 | 607 | if (ptid_match (inferior_ptid, ptid)) |
041274d8 PA |
608 | { |
609 | /* We just deleted the regcache of the current thread. Need to | |
610 | forget about any frames we have cached, too. */ | |
611 | reinit_frame_cache (); | |
612 | } | |
613 | } | |
c2250ad1 | 614 | |
041274d8 PA |
615 | void |
616 | registers_changed (void) | |
617 | { | |
618 | registers_changed_ptid (minus_one_ptid); | |
a5d9d57d | 619 | |
32178cab MS |
620 | /* Force cleanup of any alloca areas if using C alloca instead of |
621 | a builtin alloca. This particular call is used to clean up | |
622 | areas allocated by low level target code which may build up | |
623 | during lengthy interactions between gdb and the target before | |
624 | gdb gives control to the user (ie watchpoints). */ | |
625 | alloca (0); | |
32178cab MS |
626 | } |
627 | ||
05d1431c | 628 | enum register_status |
2d522557 | 629 | regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf) |
61a0eb5b | 630 | { |
3fadccb3 AC |
631 | gdb_assert (regcache != NULL && buf != NULL); |
632 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
3fadccb3 AC |
633 | /* Make certain that the register cache is up-to-date with respect |
634 | to the current thread. This switching shouldn't be necessary | |
635 | only there is still only one target side register cache. Sigh! | |
636 | On the bright side, at least there is a regcache object. */ | |
788c8b10 PA |
637 | if (!regcache->readonly_p |
638 | && regcache_register_status (regcache, regnum) == REG_UNKNOWN) | |
3fadccb3 | 639 | { |
788c8b10 | 640 | struct cleanup *old_chain = save_inferior_ptid (); |
123f5f96 | 641 | |
788c8b10 PA |
642 | inferior_ptid = regcache->ptid; |
643 | target_fetch_registers (regcache, regnum); | |
644 | do_cleanups (old_chain); | |
645 | ||
646 | /* A number of targets can't access the whole set of raw | |
647 | registers (because the debug API provides no means to get at | |
648 | them). */ | |
649 | if (regcache->register_status[regnum] == REG_UNKNOWN) | |
650 | regcache->register_status[regnum] = REG_UNAVAILABLE; | |
3fadccb3 | 651 | } |
05d1431c PA |
652 | |
653 | if (regcache->register_status[regnum] != REG_VALID) | |
654 | memset (buf, 0, regcache->descr->sizeof_register[regnum]); | |
655 | else | |
656 | memcpy (buf, register_buffer (regcache, regnum), | |
657 | regcache->descr->sizeof_register[regnum]); | |
658 | ||
659 | return regcache->register_status[regnum]; | |
61a0eb5b AC |
660 | } |
661 | ||
05d1431c | 662 | enum register_status |
28fc6740 AC |
663 | regcache_raw_read_signed (struct regcache *regcache, int regnum, LONGEST *val) |
664 | { | |
2d522557 | 665 | gdb_byte *buf; |
05d1431c | 666 | enum register_status status; |
123f5f96 | 667 | |
28fc6740 AC |
668 | gdb_assert (regcache != NULL); |
669 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
670 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
05d1431c PA |
671 | status = regcache_raw_read (regcache, regnum, buf); |
672 | if (status == REG_VALID) | |
673 | *val = extract_signed_integer | |
674 | (buf, regcache->descr->sizeof_register[regnum], | |
675 | gdbarch_byte_order (regcache->descr->gdbarch)); | |
676 | else | |
677 | *val = 0; | |
678 | return status; | |
28fc6740 AC |
679 | } |
680 | ||
05d1431c | 681 | enum register_status |
28fc6740 AC |
682 | regcache_raw_read_unsigned (struct regcache *regcache, int regnum, |
683 | ULONGEST *val) | |
684 | { | |
2d522557 | 685 | gdb_byte *buf; |
05d1431c | 686 | enum register_status status; |
123f5f96 | 687 | |
28fc6740 AC |
688 | gdb_assert (regcache != NULL); |
689 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
690 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
05d1431c PA |
691 | status = regcache_raw_read (regcache, regnum, buf); |
692 | if (status == REG_VALID) | |
693 | *val = extract_unsigned_integer | |
694 | (buf, regcache->descr->sizeof_register[regnum], | |
695 | gdbarch_byte_order (regcache->descr->gdbarch)); | |
696 | else | |
697 | *val = 0; | |
698 | return status; | |
28fc6740 AC |
699 | } |
700 | ||
c00dcbe9 MK |
701 | void |
702 | regcache_raw_write_signed (struct regcache *regcache, int regnum, LONGEST val) | |
703 | { | |
704 | void *buf; | |
123f5f96 | 705 | |
c00dcbe9 MK |
706 | gdb_assert (regcache != NULL); |
707 | gdb_assert (regnum >=0 && regnum < regcache->descr->nr_raw_registers); | |
708 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
e17a4113 UW |
709 | store_signed_integer (buf, regcache->descr->sizeof_register[regnum], |
710 | gdbarch_byte_order (regcache->descr->gdbarch), val); | |
c00dcbe9 MK |
711 | regcache_raw_write (regcache, regnum, buf); |
712 | } | |
713 | ||
714 | void | |
715 | regcache_raw_write_unsigned (struct regcache *regcache, int regnum, | |
716 | ULONGEST val) | |
717 | { | |
718 | void *buf; | |
123f5f96 | 719 | |
c00dcbe9 MK |
720 | gdb_assert (regcache != NULL); |
721 | gdb_assert (regnum >=0 && regnum < regcache->descr->nr_raw_registers); | |
722 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
e17a4113 UW |
723 | store_unsigned_integer (buf, regcache->descr->sizeof_register[regnum], |
724 | gdbarch_byte_order (regcache->descr->gdbarch), val); | |
c00dcbe9 MK |
725 | regcache_raw_write (regcache, regnum, buf); |
726 | } | |
727 | ||
05d1431c | 728 | enum register_status |
2d522557 | 729 | regcache_cooked_read (struct regcache *regcache, int regnum, gdb_byte *buf) |
68365089 | 730 | { |
d138e37a | 731 | gdb_assert (regnum >= 0); |
68365089 AC |
732 | gdb_assert (regnum < regcache->descr->nr_cooked_registers); |
733 | if (regnum < regcache->descr->nr_raw_registers) | |
05d1431c | 734 | return regcache_raw_read (regcache, regnum, buf); |
2d28509a | 735 | else if (regcache->readonly_p |
05d1431c PA |
736 | && regcache->register_status[regnum] != REG_UNKNOWN) |
737 | { | |
738 | /* Read-only register cache, perhaps the cooked value was | |
739 | cached? */ | |
05d1431c PA |
740 | if (regcache->register_status[regnum] == REG_VALID) |
741 | memcpy (buf, register_buffer (regcache, regnum), | |
742 | regcache->descr->sizeof_register[regnum]); | |
743 | else | |
744 | memset (buf, 0, regcache->descr->sizeof_register[regnum]); | |
745 | ||
746 | return regcache->register_status[regnum]; | |
747 | } | |
3543a589 TT |
748 | else if (gdbarch_pseudo_register_read_value_p (regcache->descr->gdbarch)) |
749 | { | |
750 | struct value *mark, *computed; | |
751 | enum register_status result = REG_VALID; | |
752 | ||
753 | mark = value_mark (); | |
754 | ||
755 | computed = gdbarch_pseudo_register_read_value (regcache->descr->gdbarch, | |
756 | regcache, regnum); | |
757 | if (value_entirely_available (computed)) | |
758 | memcpy (buf, value_contents_raw (computed), | |
759 | regcache->descr->sizeof_register[regnum]); | |
760 | else | |
761 | { | |
762 | memset (buf, 0, regcache->descr->sizeof_register[regnum]); | |
763 | result = REG_UNAVAILABLE; | |
764 | } | |
765 | ||
766 | value_free_to_mark (mark); | |
767 | ||
768 | return result; | |
769 | } | |
d138e37a | 770 | else |
05d1431c PA |
771 | return gdbarch_pseudo_register_read (regcache->descr->gdbarch, regcache, |
772 | regnum, buf); | |
61a0eb5b AC |
773 | } |
774 | ||
3543a589 TT |
775 | struct value * |
776 | regcache_cooked_read_value (struct regcache *regcache, int regnum) | |
777 | { | |
778 | gdb_assert (regnum >= 0); | |
779 | gdb_assert (regnum < regcache->descr->nr_cooked_registers); | |
780 | ||
781 | if (regnum < regcache->descr->nr_raw_registers | |
782 | || (regcache->readonly_p | |
783 | && regcache->register_status[regnum] != REG_UNKNOWN) | |
784 | || !gdbarch_pseudo_register_read_value_p (regcache->descr->gdbarch)) | |
785 | { | |
786 | struct value *result; | |
787 | ||
788 | result = allocate_value (register_type (regcache->descr->gdbarch, | |
789 | regnum)); | |
790 | VALUE_LVAL (result) = lval_register; | |
791 | VALUE_REGNUM (result) = regnum; | |
792 | ||
793 | /* It is more efficient in general to do this delegation in this | |
794 | direction than in the other one, even though the value-based | |
795 | API is preferred. */ | |
796 | if (regcache_cooked_read (regcache, regnum, | |
797 | value_contents_raw (result)) == REG_UNAVAILABLE) | |
798 | mark_value_bytes_unavailable (result, 0, | |
799 | TYPE_LENGTH (value_type (result))); | |
800 | ||
801 | return result; | |
802 | } | |
803 | else | |
804 | return gdbarch_pseudo_register_read_value (regcache->descr->gdbarch, | |
805 | regcache, regnum); | |
806 | } | |
807 | ||
05d1431c | 808 | enum register_status |
a378f419 AC |
809 | regcache_cooked_read_signed (struct regcache *regcache, int regnum, |
810 | LONGEST *val) | |
811 | { | |
05d1431c | 812 | enum register_status status; |
2d522557 | 813 | gdb_byte *buf; |
123f5f96 | 814 | |
a378f419 | 815 | gdb_assert (regcache != NULL); |
a66a9c23 | 816 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_cooked_registers); |
a378f419 | 817 | buf = alloca (regcache->descr->sizeof_register[regnum]); |
05d1431c PA |
818 | status = regcache_cooked_read (regcache, regnum, buf); |
819 | if (status == REG_VALID) | |
820 | *val = extract_signed_integer | |
821 | (buf, regcache->descr->sizeof_register[regnum], | |
822 | gdbarch_byte_order (regcache->descr->gdbarch)); | |
823 | else | |
824 | *val = 0; | |
825 | return status; | |
a378f419 AC |
826 | } |
827 | ||
05d1431c | 828 | enum register_status |
a378f419 AC |
829 | regcache_cooked_read_unsigned (struct regcache *regcache, int regnum, |
830 | ULONGEST *val) | |
831 | { | |
05d1431c | 832 | enum register_status status; |
2d522557 | 833 | gdb_byte *buf; |
123f5f96 | 834 | |
a378f419 | 835 | gdb_assert (regcache != NULL); |
a66a9c23 | 836 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_cooked_registers); |
a378f419 | 837 | buf = alloca (regcache->descr->sizeof_register[regnum]); |
05d1431c PA |
838 | status = regcache_cooked_read (regcache, regnum, buf); |
839 | if (status == REG_VALID) | |
840 | *val = extract_unsigned_integer | |
841 | (buf, regcache->descr->sizeof_register[regnum], | |
842 | gdbarch_byte_order (regcache->descr->gdbarch)); | |
843 | else | |
844 | *val = 0; | |
845 | return status; | |
a378f419 AC |
846 | } |
847 | ||
a66a9c23 AC |
848 | void |
849 | regcache_cooked_write_signed (struct regcache *regcache, int regnum, | |
850 | LONGEST val) | |
851 | { | |
852 | void *buf; | |
123f5f96 | 853 | |
a66a9c23 AC |
854 | gdb_assert (regcache != NULL); |
855 | gdb_assert (regnum >=0 && regnum < regcache->descr->nr_cooked_registers); | |
856 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
e17a4113 UW |
857 | store_signed_integer (buf, regcache->descr->sizeof_register[regnum], |
858 | gdbarch_byte_order (regcache->descr->gdbarch), val); | |
a66a9c23 AC |
859 | regcache_cooked_write (regcache, regnum, buf); |
860 | } | |
861 | ||
862 | void | |
863 | regcache_cooked_write_unsigned (struct regcache *regcache, int regnum, | |
864 | ULONGEST val) | |
865 | { | |
866 | void *buf; | |
123f5f96 | 867 | |
a66a9c23 AC |
868 | gdb_assert (regcache != NULL); |
869 | gdb_assert (regnum >=0 && regnum < regcache->descr->nr_cooked_registers); | |
870 | buf = alloca (regcache->descr->sizeof_register[regnum]); | |
e17a4113 UW |
871 | store_unsigned_integer (buf, regcache->descr->sizeof_register[regnum], |
872 | gdbarch_byte_order (regcache->descr->gdbarch), val); | |
a66a9c23 AC |
873 | regcache_cooked_write (regcache, regnum, buf); |
874 | } | |
875 | ||
61a0eb5b | 876 | void |
2d522557 AC |
877 | regcache_raw_write (struct regcache *regcache, int regnum, |
878 | const gdb_byte *buf) | |
61a0eb5b | 879 | { |
b94ade42 PL |
880 | struct cleanup *chain_before_save_inferior; |
881 | struct cleanup *chain_before_invalidate_register; | |
594f7785 | 882 | |
3fadccb3 AC |
883 | gdb_assert (regcache != NULL && buf != NULL); |
884 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
2d28509a | 885 | gdb_assert (!regcache->readonly_p); |
3fadccb3 | 886 | |
3fadccb3 AC |
887 | /* On the sparc, writing %g0 is a no-op, so we don't even want to |
888 | change the registers array if something writes to this register. */ | |
214e098a | 889 | if (gdbarch_cannot_store_register (get_regcache_arch (regcache), regnum)) |
3fadccb3 AC |
890 | return; |
891 | ||
3fadccb3 | 892 | /* If we have a valid copy of the register, and new value == old |
0df8b418 | 893 | value, then don't bother doing the actual store. */ |
ee99023e | 894 | if (regcache_register_status (regcache, regnum) == REG_VALID |
3fadccb3 AC |
895 | && (memcmp (register_buffer (regcache, regnum), buf, |
896 | regcache->descr->sizeof_register[regnum]) == 0)) | |
897 | return; | |
898 | ||
b94ade42 | 899 | chain_before_save_inferior = save_inferior_ptid (); |
594f7785 UW |
900 | inferior_ptid = regcache->ptid; |
901 | ||
316f2060 | 902 | target_prepare_to_store (regcache); |
3fadccb3 AC |
903 | memcpy (register_buffer (regcache, regnum), buf, |
904 | regcache->descr->sizeof_register[regnum]); | |
ee99023e | 905 | regcache->register_status[regnum] = REG_VALID; |
b94ade42 PL |
906 | |
907 | /* Register a cleanup function for invalidating the register after it is | |
908 | written, in case of a failure. */ | |
909 | chain_before_invalidate_register | |
910 | = make_cleanup_regcache_invalidate (regcache, regnum); | |
911 | ||
56be3814 | 912 | target_store_registers (regcache, regnum); |
594f7785 | 913 | |
b94ade42 PL |
914 | /* The target did not throw an error so we can discard invalidating the |
915 | register and restore the cleanup chain to what it was. */ | |
916 | discard_cleanups (chain_before_invalidate_register); | |
917 | ||
918 | do_cleanups (chain_before_save_inferior); | |
61a0eb5b AC |
919 | } |
920 | ||
68365089 | 921 | void |
2d522557 AC |
922 | regcache_cooked_write (struct regcache *regcache, int regnum, |
923 | const gdb_byte *buf) | |
68365089 | 924 | { |
d138e37a | 925 | gdb_assert (regnum >= 0); |
68365089 AC |
926 | gdb_assert (regnum < regcache->descr->nr_cooked_registers); |
927 | if (regnum < regcache->descr->nr_raw_registers) | |
928 | regcache_raw_write (regcache, regnum, buf); | |
d138e37a | 929 | else |
68365089 | 930 | gdbarch_pseudo_register_write (regcache->descr->gdbarch, regcache, |
d8124050 | 931 | regnum, buf); |
61a0eb5b AC |
932 | } |
933 | ||
06c0b04e AC |
934 | /* Perform a partial register transfer using a read, modify, write |
935 | operation. */ | |
936 | ||
937 | typedef void (regcache_read_ftype) (struct regcache *regcache, int regnum, | |
938 | void *buf); | |
939 | typedef void (regcache_write_ftype) (struct regcache *regcache, int regnum, | |
940 | const void *buf); | |
941 | ||
05d1431c | 942 | static enum register_status |
06c0b04e AC |
943 | regcache_xfer_part (struct regcache *regcache, int regnum, |
944 | int offset, int len, void *in, const void *out, | |
05d1431c PA |
945 | enum register_status (*read) (struct regcache *regcache, |
946 | int regnum, | |
947 | gdb_byte *buf), | |
2d522557 AC |
948 | void (*write) (struct regcache *regcache, int regnum, |
949 | const gdb_byte *buf)) | |
06c0b04e AC |
950 | { |
951 | struct regcache_descr *descr = regcache->descr; | |
fc1a4b47 | 952 | gdb_byte reg[MAX_REGISTER_SIZE]; |
123f5f96 | 953 | |
06c0b04e AC |
954 | gdb_assert (offset >= 0 && offset <= descr->sizeof_register[regnum]); |
955 | gdb_assert (len >= 0 && offset + len <= descr->sizeof_register[regnum]); | |
956 | /* Something to do? */ | |
957 | if (offset + len == 0) | |
05d1431c | 958 | return REG_VALID; |
0df8b418 | 959 | /* Read (when needed) ... */ |
06c0b04e AC |
960 | if (in != NULL |
961 | || offset > 0 | |
962 | || offset + len < descr->sizeof_register[regnum]) | |
963 | { | |
05d1431c PA |
964 | enum register_status status; |
965 | ||
06c0b04e | 966 | gdb_assert (read != NULL); |
05d1431c PA |
967 | status = read (regcache, regnum, reg); |
968 | if (status != REG_VALID) | |
969 | return status; | |
06c0b04e | 970 | } |
0df8b418 | 971 | /* ... modify ... */ |
06c0b04e AC |
972 | if (in != NULL) |
973 | memcpy (in, reg + offset, len); | |
974 | if (out != NULL) | |
975 | memcpy (reg + offset, out, len); | |
976 | /* ... write (when needed). */ | |
977 | if (out != NULL) | |
978 | { | |
979 | gdb_assert (write != NULL); | |
980 | write (regcache, regnum, reg); | |
981 | } | |
05d1431c PA |
982 | |
983 | return REG_VALID; | |
06c0b04e AC |
984 | } |
985 | ||
05d1431c | 986 | enum register_status |
06c0b04e | 987 | regcache_raw_read_part (struct regcache *regcache, int regnum, |
2d522557 | 988 | int offset, int len, gdb_byte *buf) |
06c0b04e AC |
989 | { |
990 | struct regcache_descr *descr = regcache->descr; | |
123f5f96 | 991 | |
06c0b04e | 992 | gdb_assert (regnum >= 0 && regnum < descr->nr_raw_registers); |
05d1431c PA |
993 | return regcache_xfer_part (regcache, regnum, offset, len, buf, NULL, |
994 | regcache_raw_read, regcache_raw_write); | |
06c0b04e AC |
995 | } |
996 | ||
997 | void | |
998 | regcache_raw_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 999 | int offset, int len, const gdb_byte *buf) |
06c0b04e AC |
1000 | { |
1001 | struct regcache_descr *descr = regcache->descr; | |
123f5f96 | 1002 | |
06c0b04e AC |
1003 | gdb_assert (regnum >= 0 && regnum < descr->nr_raw_registers); |
1004 | regcache_xfer_part (regcache, regnum, offset, len, NULL, buf, | |
1005 | regcache_raw_read, regcache_raw_write); | |
1006 | } | |
1007 | ||
05d1431c | 1008 | enum register_status |
06c0b04e | 1009 | regcache_cooked_read_part (struct regcache *regcache, int regnum, |
2d522557 | 1010 | int offset, int len, gdb_byte *buf) |
06c0b04e AC |
1011 | { |
1012 | struct regcache_descr *descr = regcache->descr; | |
123f5f96 | 1013 | |
06c0b04e | 1014 | gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers); |
05d1431c PA |
1015 | return regcache_xfer_part (regcache, regnum, offset, len, buf, NULL, |
1016 | regcache_cooked_read, regcache_cooked_write); | |
06c0b04e AC |
1017 | } |
1018 | ||
1019 | void | |
1020 | regcache_cooked_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 1021 | int offset, int len, const gdb_byte *buf) |
06c0b04e AC |
1022 | { |
1023 | struct regcache_descr *descr = regcache->descr; | |
123f5f96 | 1024 | |
06c0b04e AC |
1025 | gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers); |
1026 | regcache_xfer_part (regcache, regnum, offset, len, NULL, buf, | |
1027 | regcache_cooked_read, regcache_cooked_write); | |
1028 | } | |
32178cab | 1029 | |
a16d75cc | 1030 | /* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */ |
9a661b68 MK |
1031 | |
1032 | void | |
6618125d | 1033 | regcache_raw_supply (struct regcache *regcache, int regnum, const void *buf) |
9a661b68 MK |
1034 | { |
1035 | void *regbuf; | |
1036 | size_t size; | |
1037 | ||
a16d75cc | 1038 | gdb_assert (regcache != NULL); |
9a661b68 MK |
1039 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); |
1040 | gdb_assert (!regcache->readonly_p); | |
1041 | ||
9a661b68 MK |
1042 | regbuf = register_buffer (regcache, regnum); |
1043 | size = regcache->descr->sizeof_register[regnum]; | |
1044 | ||
1045 | if (buf) | |
ee99023e PA |
1046 | { |
1047 | memcpy (regbuf, buf, size); | |
1048 | regcache->register_status[regnum] = REG_VALID; | |
1049 | } | |
9a661b68 | 1050 | else |
ee99023e PA |
1051 | { |
1052 | /* This memset not strictly necessary, but better than garbage | |
1053 | in case the register value manages to escape somewhere (due | |
1054 | to a bug, no less). */ | |
1055 | memset (regbuf, 0, size); | |
1056 | regcache->register_status[regnum] = REG_UNAVAILABLE; | |
1057 | } | |
9a661b68 MK |
1058 | } |
1059 | ||
1060 | /* Collect register REGNUM from REGCACHE and store its contents in BUF. */ | |
1061 | ||
1062 | void | |
6618125d | 1063 | regcache_raw_collect (const struct regcache *regcache, int regnum, void *buf) |
9a661b68 MK |
1064 | { |
1065 | const void *regbuf; | |
1066 | size_t size; | |
1067 | ||
1068 | gdb_assert (regcache != NULL && buf != NULL); | |
1069 | gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers); | |
1070 | ||
1071 | regbuf = register_buffer (regcache, regnum); | |
1072 | size = regcache->descr->sizeof_register[regnum]; | |
1073 | memcpy (buf, regbuf, size); | |
1074 | } | |
1075 | ||
0b309272 AA |
1076 | /* Transfer a single or all registers belonging to a certain register |
1077 | set to or from a buffer. This is the main worker function for | |
1078 | regcache_supply_regset and regcache_collect_regset. */ | |
1079 | ||
1080 | static void | |
1081 | regcache_transfer_regset (const struct regset *regset, | |
1082 | const struct regcache *regcache, | |
1083 | struct regcache *out_regcache, | |
1084 | int regnum, const void *in_buf, | |
1085 | void *out_buf, size_t size) | |
1086 | { | |
1087 | const struct regcache_map_entry *map; | |
1088 | int offs = 0, count; | |
1089 | ||
1090 | for (map = regset->regmap; (count = map->count) != 0; map++) | |
1091 | { | |
1092 | int regno = map->regno; | |
1093 | int slot_size = map->size; | |
1094 | ||
1095 | if (slot_size == 0 && regno != REGCACHE_MAP_SKIP) | |
1096 | slot_size = regcache->descr->sizeof_register[regno]; | |
1097 | ||
1098 | if (regno == REGCACHE_MAP_SKIP | |
1099 | || (regnum != -1 | |
1100 | && (regnum < regno || regnum >= regno + count))) | |
1101 | offs += count * slot_size; | |
1102 | ||
1103 | else if (regnum == -1) | |
1104 | for (; count--; regno++, offs += slot_size) | |
1105 | { | |
1106 | if (offs + slot_size > size) | |
1107 | break; | |
1108 | ||
1109 | if (out_buf) | |
1110 | regcache_raw_collect (regcache, regno, | |
1111 | (gdb_byte *) out_buf + offs); | |
1112 | else | |
1113 | regcache_raw_supply (out_regcache, regno, in_buf | |
1114 | ? (const gdb_byte *) in_buf + offs | |
1115 | : NULL); | |
1116 | } | |
1117 | else | |
1118 | { | |
1119 | /* Transfer a single register and return. */ | |
1120 | offs += (regnum - regno) * slot_size; | |
1121 | if (offs + slot_size > size) | |
1122 | return; | |
1123 | ||
1124 | if (out_buf) | |
1125 | regcache_raw_collect (regcache, regnum, | |
1126 | (gdb_byte *) out_buf + offs); | |
1127 | else | |
1128 | regcache_raw_supply (out_regcache, regnum, in_buf | |
1129 | ? (const gdb_byte *) in_buf + offs | |
1130 | : NULL); | |
1131 | return; | |
1132 | } | |
1133 | } | |
1134 | } | |
1135 | ||
1136 | /* Supply register REGNUM from BUF to REGCACHE, using the register map | |
1137 | in REGSET. If REGNUM is -1, do this for all registers in REGSET. | |
1138 | If BUF is NULL, set the register(s) to "unavailable" status. */ | |
1139 | ||
1140 | void | |
1141 | regcache_supply_regset (const struct regset *regset, | |
1142 | struct regcache *regcache, | |
1143 | int regnum, const void *buf, size_t size) | |
1144 | { | |
1145 | regcache_transfer_regset (regset, regcache, regcache, regnum, | |
1146 | buf, NULL, size); | |
1147 | } | |
1148 | ||
1149 | /* Collect register REGNUM from REGCACHE to BUF, using the register | |
1150 | map in REGSET. If REGNUM is -1, do this for all registers in | |
1151 | REGSET. */ | |
1152 | ||
1153 | void | |
1154 | regcache_collect_regset (const struct regset *regset, | |
1155 | const struct regcache *regcache, | |
1156 | int regnum, void *buf, size_t size) | |
1157 | { | |
1158 | regcache_transfer_regset (regset, regcache, NULL, regnum, | |
1159 | NULL, buf, size); | |
1160 | } | |
1161 | ||
193cb69f | 1162 | |
515630c5 | 1163 | /* Special handling for register PC. */ |
32178cab MS |
1164 | |
1165 | CORE_ADDR | |
515630c5 | 1166 | regcache_read_pc (struct regcache *regcache) |
32178cab | 1167 | { |
61a1198a UW |
1168 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1169 | ||
32178cab MS |
1170 | CORE_ADDR pc_val; |
1171 | ||
61a1198a UW |
1172 | if (gdbarch_read_pc_p (gdbarch)) |
1173 | pc_val = gdbarch_read_pc (gdbarch, regcache); | |
cde9ea48 | 1174 | /* Else use per-frame method on get_current_frame. */ |
214e098a | 1175 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
cde9ea48 | 1176 | { |
61a1198a | 1177 | ULONGEST raw_val; |
123f5f96 | 1178 | |
05d1431c PA |
1179 | if (regcache_cooked_read_unsigned (regcache, |
1180 | gdbarch_pc_regnum (gdbarch), | |
1181 | &raw_val) == REG_UNAVAILABLE) | |
1182 | throw_error (NOT_AVAILABLE_ERROR, _("PC register is not available")); | |
1183 | ||
214e098a | 1184 | pc_val = gdbarch_addr_bits_remove (gdbarch, raw_val); |
cde9ea48 AC |
1185 | } |
1186 | else | |
515630c5 UW |
1187 | internal_error (__FILE__, __LINE__, |
1188 | _("regcache_read_pc: Unable to find PC")); | |
32178cab MS |
1189 | return pc_val; |
1190 | } | |
1191 | ||
32178cab | 1192 | void |
515630c5 | 1193 | regcache_write_pc (struct regcache *regcache, CORE_ADDR pc) |
32178cab | 1194 | { |
61a1198a UW |
1195 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1196 | ||
61a1198a UW |
1197 | if (gdbarch_write_pc_p (gdbarch)) |
1198 | gdbarch_write_pc (gdbarch, regcache, pc); | |
214e098a | 1199 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1200 | regcache_cooked_write_unsigned (regcache, |
214e098a | 1201 | gdbarch_pc_regnum (gdbarch), pc); |
61a1198a UW |
1202 | else |
1203 | internal_error (__FILE__, __LINE__, | |
515630c5 | 1204 | _("regcache_write_pc: Unable to update PC")); |
edb3359d DJ |
1205 | |
1206 | /* Writing the PC (for instance, from "load") invalidates the | |
1207 | current frame. */ | |
1208 | reinit_frame_cache (); | |
32178cab MS |
1209 | } |
1210 | ||
32178cab | 1211 | |
705152c5 MS |
1212 | static void |
1213 | reg_flush_command (char *command, int from_tty) | |
1214 | { | |
1215 | /* Force-flush the register cache. */ | |
1216 | registers_changed (); | |
1217 | if (from_tty) | |
a3f17187 | 1218 | printf_filtered (_("Register cache flushed.\n")); |
705152c5 MS |
1219 | } |
1220 | ||
af030b9a AC |
1221 | enum regcache_dump_what |
1222 | { | |
3e43a32a | 1223 | regcache_dump_none, regcache_dump_raw, |
c21236dc PA |
1224 | regcache_dump_cooked, regcache_dump_groups, |
1225 | regcache_dump_remote | |
af030b9a AC |
1226 | }; |
1227 | ||
1228 | static void | |
1229 | regcache_dump (struct regcache *regcache, struct ui_file *file, | |
1230 | enum regcache_dump_what what_to_dump) | |
1231 | { | |
1232 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); | |
b59ff9d5 | 1233 | struct gdbarch *gdbarch = regcache->descr->gdbarch; |
af030b9a AC |
1234 | int regnum; |
1235 | int footnote_nr = 0; | |
1236 | int footnote_register_size = 0; | |
1237 | int footnote_register_offset = 0; | |
1238 | int footnote_register_type_name_null = 0; | |
1239 | long register_offset = 0; | |
e362b510 | 1240 | gdb_byte buf[MAX_REGISTER_SIZE]; |
af030b9a AC |
1241 | |
1242 | #if 0 | |
af030b9a AC |
1243 | fprintf_unfiltered (file, "nr_raw_registers %d\n", |
1244 | regcache->descr->nr_raw_registers); | |
1245 | fprintf_unfiltered (file, "nr_cooked_registers %d\n", | |
1246 | regcache->descr->nr_cooked_registers); | |
1247 | fprintf_unfiltered (file, "sizeof_raw_registers %ld\n", | |
1248 | regcache->descr->sizeof_raw_registers); | |
ee99023e PA |
1249 | fprintf_unfiltered (file, "sizeof_raw_register_status %ld\n", |
1250 | regcache->descr->sizeof_raw_register_status); | |
f57d151a | 1251 | fprintf_unfiltered (file, "gdbarch_num_regs %d\n", |
214e098a | 1252 | gdbarch_num_regs (gdbarch)); |
f57d151a | 1253 | fprintf_unfiltered (file, "gdbarch_num_pseudo_regs %d\n", |
214e098a | 1254 | gdbarch_num_pseudo_regs (gdbarch)); |
af030b9a AC |
1255 | #endif |
1256 | ||
1257 | gdb_assert (regcache->descr->nr_cooked_registers | |
214e098a UW |
1258 | == (gdbarch_num_regs (gdbarch) |
1259 | + gdbarch_num_pseudo_regs (gdbarch))); | |
af030b9a AC |
1260 | |
1261 | for (regnum = -1; regnum < regcache->descr->nr_cooked_registers; regnum++) | |
1262 | { | |
1263 | /* Name. */ | |
1264 | if (regnum < 0) | |
1265 | fprintf_unfiltered (file, " %-10s", "Name"); | |
1266 | else | |
1267 | { | |
214e098a | 1268 | const char *p = gdbarch_register_name (gdbarch, regnum); |
123f5f96 | 1269 | |
af030b9a AC |
1270 | if (p == NULL) |
1271 | p = ""; | |
1272 | else if (p[0] == '\0') | |
1273 | p = "''"; | |
1274 | fprintf_unfiltered (file, " %-10s", p); | |
1275 | } | |
1276 | ||
1277 | /* Number. */ | |
1278 | if (regnum < 0) | |
1279 | fprintf_unfiltered (file, " %4s", "Nr"); | |
1280 | else | |
1281 | fprintf_unfiltered (file, " %4d", regnum); | |
1282 | ||
1283 | /* Relative number. */ | |
1284 | if (regnum < 0) | |
1285 | fprintf_unfiltered (file, " %4s", "Rel"); | |
214e098a | 1286 | else if (regnum < gdbarch_num_regs (gdbarch)) |
af030b9a AC |
1287 | fprintf_unfiltered (file, " %4d", regnum); |
1288 | else | |
f57d151a | 1289 | fprintf_unfiltered (file, " %4d", |
214e098a | 1290 | (regnum - gdbarch_num_regs (gdbarch))); |
af030b9a AC |
1291 | |
1292 | /* Offset. */ | |
1293 | if (regnum < 0) | |
1294 | fprintf_unfiltered (file, " %6s ", "Offset"); | |
1295 | else | |
1296 | { | |
1297 | fprintf_unfiltered (file, " %6ld", | |
1298 | regcache->descr->register_offset[regnum]); | |
a7e3c2ad | 1299 | if (register_offset != regcache->descr->register_offset[regnum] |
d3b22ed5 AC |
1300 | || (regnum > 0 |
1301 | && (regcache->descr->register_offset[regnum] | |
1302 | != (regcache->descr->register_offset[regnum - 1] | |
1303 | + regcache->descr->sizeof_register[regnum - 1]))) | |
1304 | ) | |
af030b9a AC |
1305 | { |
1306 | if (!footnote_register_offset) | |
1307 | footnote_register_offset = ++footnote_nr; | |
1308 | fprintf_unfiltered (file, "*%d", footnote_register_offset); | |
1309 | } | |
1310 | else | |
1311 | fprintf_unfiltered (file, " "); | |
1312 | register_offset = (regcache->descr->register_offset[regnum] | |
1313 | + regcache->descr->sizeof_register[regnum]); | |
1314 | } | |
1315 | ||
1316 | /* Size. */ | |
1317 | if (regnum < 0) | |
1318 | fprintf_unfiltered (file, " %5s ", "Size"); | |
1319 | else | |
01e1877c AC |
1320 | fprintf_unfiltered (file, " %5ld", |
1321 | regcache->descr->sizeof_register[regnum]); | |
af030b9a AC |
1322 | |
1323 | /* Type. */ | |
b59ff9d5 AC |
1324 | { |
1325 | const char *t; | |
123f5f96 | 1326 | |
b59ff9d5 AC |
1327 | if (regnum < 0) |
1328 | t = "Type"; | |
1329 | else | |
1330 | { | |
1331 | static const char blt[] = "builtin_type"; | |
123f5f96 | 1332 | |
b59ff9d5 AC |
1333 | t = TYPE_NAME (register_type (regcache->descr->gdbarch, regnum)); |
1334 | if (t == NULL) | |
1335 | { | |
1336 | char *n; | |
123f5f96 | 1337 | |
b59ff9d5 AC |
1338 | if (!footnote_register_type_name_null) |
1339 | footnote_register_type_name_null = ++footnote_nr; | |
b435e160 | 1340 | n = xstrprintf ("*%d", footnote_register_type_name_null); |
b59ff9d5 AC |
1341 | make_cleanup (xfree, n); |
1342 | t = n; | |
1343 | } | |
1344 | /* Chop a leading builtin_type. */ | |
61012eef | 1345 | if (startswith (t, blt)) |
b59ff9d5 AC |
1346 | t += strlen (blt); |
1347 | } | |
1348 | fprintf_unfiltered (file, " %-15s", t); | |
1349 | } | |
1350 | ||
1351 | /* Leading space always present. */ | |
1352 | fprintf_unfiltered (file, " "); | |
af030b9a AC |
1353 | |
1354 | /* Value, raw. */ | |
1355 | if (what_to_dump == regcache_dump_raw) | |
1356 | { | |
1357 | if (regnum < 0) | |
1358 | fprintf_unfiltered (file, "Raw value"); | |
1359 | else if (regnum >= regcache->descr->nr_raw_registers) | |
1360 | fprintf_unfiltered (file, "<cooked>"); | |
ee99023e | 1361 | else if (regcache_register_status (regcache, regnum) == REG_UNKNOWN) |
af030b9a | 1362 | fprintf_unfiltered (file, "<invalid>"); |
ee99023e PA |
1363 | else if (regcache_register_status (regcache, regnum) == REG_UNAVAILABLE) |
1364 | fprintf_unfiltered (file, "<unavailable>"); | |
af030b9a AC |
1365 | else |
1366 | { | |
1367 | regcache_raw_read (regcache, regnum, buf); | |
d3eaaf66 AB |
1368 | print_hex_chars (file, buf, |
1369 | regcache->descr->sizeof_register[regnum], | |
1370 | gdbarch_byte_order (gdbarch)); | |
af030b9a AC |
1371 | } |
1372 | } | |
1373 | ||
1374 | /* Value, cooked. */ | |
1375 | if (what_to_dump == regcache_dump_cooked) | |
1376 | { | |
1377 | if (regnum < 0) | |
1378 | fprintf_unfiltered (file, "Cooked value"); | |
1379 | else | |
1380 | { | |
05d1431c PA |
1381 | enum register_status status; |
1382 | ||
1383 | status = regcache_cooked_read (regcache, regnum, buf); | |
1384 | if (status == REG_UNKNOWN) | |
1385 | fprintf_unfiltered (file, "<invalid>"); | |
1386 | else if (status == REG_UNAVAILABLE) | |
1387 | fprintf_unfiltered (file, "<unavailable>"); | |
1388 | else | |
d3eaaf66 AB |
1389 | print_hex_chars (file, buf, |
1390 | regcache->descr->sizeof_register[regnum], | |
1391 | gdbarch_byte_order (gdbarch)); | |
af030b9a AC |
1392 | } |
1393 | } | |
1394 | ||
b59ff9d5 AC |
1395 | /* Group members. */ |
1396 | if (what_to_dump == regcache_dump_groups) | |
1397 | { | |
1398 | if (regnum < 0) | |
1399 | fprintf_unfiltered (file, "Groups"); | |
1400 | else | |
1401 | { | |
b59ff9d5 | 1402 | const char *sep = ""; |
6c7d17ba | 1403 | struct reggroup *group; |
123f5f96 | 1404 | |
6c7d17ba AC |
1405 | for (group = reggroup_next (gdbarch, NULL); |
1406 | group != NULL; | |
1407 | group = reggroup_next (gdbarch, group)) | |
b59ff9d5 | 1408 | { |
6c7d17ba | 1409 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
b59ff9d5 | 1410 | { |
3e43a32a MS |
1411 | fprintf_unfiltered (file, |
1412 | "%s%s", sep, reggroup_name (group)); | |
b59ff9d5 AC |
1413 | sep = ","; |
1414 | } | |
1415 | } | |
1416 | } | |
1417 | } | |
1418 | ||
c21236dc PA |
1419 | /* Remote packet configuration. */ |
1420 | if (what_to_dump == regcache_dump_remote) | |
1421 | { | |
1422 | if (regnum < 0) | |
1423 | { | |
1424 | fprintf_unfiltered (file, "Rmt Nr g/G Offset"); | |
1425 | } | |
1426 | else if (regnum < regcache->descr->nr_raw_registers) | |
1427 | { | |
1428 | int pnum, poffset; | |
1429 | ||
1430 | if (remote_register_number_and_offset (get_regcache_arch (regcache), regnum, | |
1431 | &pnum, &poffset)) | |
1432 | fprintf_unfiltered (file, "%7d %11d", pnum, poffset); | |
1433 | } | |
1434 | } | |
1435 | ||
af030b9a AC |
1436 | fprintf_unfiltered (file, "\n"); |
1437 | } | |
1438 | ||
1439 | if (footnote_register_size) | |
1440 | fprintf_unfiltered (file, "*%d: Inconsistent register sizes.\n", | |
1441 | footnote_register_size); | |
1442 | if (footnote_register_offset) | |
1443 | fprintf_unfiltered (file, "*%d: Inconsistent register offsets.\n", | |
1444 | footnote_register_offset); | |
1445 | if (footnote_register_type_name_null) | |
1446 | fprintf_unfiltered (file, | |
1447 | "*%d: Register type's name NULL.\n", | |
1448 | footnote_register_type_name_null); | |
1449 | do_cleanups (cleanups); | |
1450 | } | |
1451 | ||
1452 | static void | |
1453 | regcache_print (char *args, enum regcache_dump_what what_to_dump) | |
1454 | { | |
1455 | if (args == NULL) | |
28c38f10 | 1456 | regcache_dump (get_current_regcache (), gdb_stdout, what_to_dump); |
af030b9a AC |
1457 | else |
1458 | { | |
724b958c | 1459 | struct cleanup *cleanups; |
af030b9a | 1460 | struct ui_file *file = gdb_fopen (args, "w"); |
123f5f96 | 1461 | |
af030b9a | 1462 | if (file == NULL) |
e2e0b3e5 | 1463 | perror_with_name (_("maintenance print architecture")); |
724b958c | 1464 | cleanups = make_cleanup_ui_file_delete (file); |
28c38f10 | 1465 | regcache_dump (get_current_regcache (), file, what_to_dump); |
724b958c | 1466 | do_cleanups (cleanups); |
af030b9a AC |
1467 | } |
1468 | } | |
1469 | ||
1470 | static void | |
1471 | maintenance_print_registers (char *args, int from_tty) | |
1472 | { | |
1473 | regcache_print (args, regcache_dump_none); | |
1474 | } | |
1475 | ||
1476 | static void | |
1477 | maintenance_print_raw_registers (char *args, int from_tty) | |
1478 | { | |
1479 | regcache_print (args, regcache_dump_raw); | |
1480 | } | |
1481 | ||
1482 | static void | |
1483 | maintenance_print_cooked_registers (char *args, int from_tty) | |
1484 | { | |
1485 | regcache_print (args, regcache_dump_cooked); | |
1486 | } | |
1487 | ||
b59ff9d5 AC |
1488 | static void |
1489 | maintenance_print_register_groups (char *args, int from_tty) | |
1490 | { | |
1491 | regcache_print (args, regcache_dump_groups); | |
1492 | } | |
1493 | ||
c21236dc PA |
1494 | static void |
1495 | maintenance_print_remote_registers (char *args, int from_tty) | |
1496 | { | |
1497 | regcache_print (args, regcache_dump_remote); | |
1498 | } | |
1499 | ||
b9362cc7 AC |
1500 | extern initialize_file_ftype _initialize_regcache; /* -Wmissing-prototype */ |
1501 | ||
32178cab MS |
1502 | void |
1503 | _initialize_regcache (void) | |
1504 | { | |
3e43a32a MS |
1505 | regcache_descr_handle |
1506 | = gdbarch_data_register_post_init (init_regcache_descr); | |
705152c5 | 1507 | |
f4c5303c | 1508 | observer_attach_target_changed (regcache_observer_target_changed); |
5231c1fd | 1509 | observer_attach_thread_ptid_changed (regcache_thread_ptid_changed); |
f4c5303c | 1510 | |
705152c5 | 1511 | add_com ("flushregs", class_maintenance, reg_flush_command, |
1bedd215 | 1512 | _("Force gdb to flush its register cache (maintainer command)")); |
39f77062 | 1513 | |
3e43a32a MS |
1514 | add_cmd ("registers", class_maintenance, maintenance_print_registers, |
1515 | _("Print the internal register configuration.\n" | |
1516 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 1517 | add_cmd ("raw-registers", class_maintenance, |
3e43a32a MS |
1518 | maintenance_print_raw_registers, |
1519 | _("Print the internal register configuration " | |
1520 | "including raw values.\n" | |
1521 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 1522 | add_cmd ("cooked-registers", class_maintenance, |
3e43a32a MS |
1523 | maintenance_print_cooked_registers, |
1524 | _("Print the internal register configuration " | |
1525 | "including cooked values.\n" | |
1526 | "Takes an optional file parameter."), &maintenanceprintlist); | |
b59ff9d5 | 1527 | add_cmd ("register-groups", class_maintenance, |
3e43a32a MS |
1528 | maintenance_print_register_groups, |
1529 | _("Print the internal register configuration " | |
1530 | "including each register's group.\n" | |
1531 | "Takes an optional file parameter."), | |
af030b9a | 1532 | &maintenanceprintlist); |
c21236dc PA |
1533 | add_cmd ("remote-registers", class_maintenance, |
1534 | maintenance_print_remote_registers, _("\ | |
1535 | Print the internal register configuration including each register's\n\ | |
1536 | remote register number and buffer offset in the g/G packets.\n\ | |
1537 | Takes an optional file parameter."), | |
1538 | &maintenanceprintlist); | |
af030b9a | 1539 | |
32178cab | 1540 | } |