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32178cab | 1 | /* Cache and manage the values of registers for GDB, the GNU debugger. |
3fadccb3 | 2 | |
e2882c85 | 3 | Copyright (C) 1986-2018 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" |
94bb8dfe | 31 | #include <forward_list> |
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 | 54 | long sizeof_raw_registers; |
3fadccb3 | 55 | |
d138e37a AC |
56 | /* The cooked register space. Each cooked register in the range |
57 | [0..NR_RAW_REGISTERS) is direct-mapped onto the corresponding raw | |
58 | register. The remaining [NR_RAW_REGISTERS | |
02f60eae | 59 | .. NR_COOKED_REGISTERS) (a.k.a. pseudo registers) are mapped onto |
d138e37a | 60 | both raw registers and memory by the architecture methods |
02f60eae | 61 | gdbarch_pseudo_register_read and gdbarch_pseudo_register_write. */ |
d138e37a | 62 | int nr_cooked_registers; |
067df2e5 | 63 | long sizeof_cooked_registers; |
d138e37a | 64 | |
86d31898 | 65 | /* Offset and size (in 8 bit bytes), of each register in the |
d138e37a | 66 | register cache. All registers (including those in the range |
99e42fd8 PA |
67 | [NR_RAW_REGISTERS .. NR_COOKED_REGISTERS) are given an |
68 | offset. */ | |
3fadccb3 | 69 | long *register_offset; |
3fadccb3 | 70 | long *sizeof_register; |
3fadccb3 | 71 | |
bb425013 AC |
72 | /* Cached table containing the type of each register. */ |
73 | struct type **register_type; | |
3fadccb3 AC |
74 | }; |
75 | ||
3fadccb3 AC |
76 | static void * |
77 | init_regcache_descr (struct gdbarch *gdbarch) | |
78 | { | |
79 | int i; | |
80 | struct regcache_descr *descr; | |
81 | gdb_assert (gdbarch != NULL); | |
82 | ||
bb425013 | 83 | /* Create an initial, zero filled, table. */ |
116f06ea | 84 | descr = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct regcache_descr); |
3fadccb3 | 85 | descr->gdbarch = gdbarch; |
3fadccb3 | 86 | |
d138e37a AC |
87 | /* Total size of the register space. The raw registers are mapped |
88 | directly onto the raw register cache while the pseudo's are | |
3fadccb3 | 89 | either mapped onto raw-registers or memory. */ |
214e098a UW |
90 | descr->nr_cooked_registers = gdbarch_num_regs (gdbarch) |
91 | + gdbarch_num_pseudo_regs (gdbarch); | |
3fadccb3 | 92 | |
bb425013 | 93 | /* Fill in a table of register types. */ |
116f06ea | 94 | descr->register_type |
3e43a32a MS |
95 | = GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, |
96 | struct type *); | |
bb425013 | 97 | for (i = 0; i < descr->nr_cooked_registers; i++) |
336a3131 | 98 | descr->register_type[i] = gdbarch_register_type (gdbarch, i); |
bb425013 | 99 | |
bb1db049 AC |
100 | /* Construct a strictly RAW register cache. Don't allow pseudo's |
101 | into the register cache. */ | |
bb1db049 | 102 | |
067df2e5 | 103 | /* Lay out the register cache. |
3fadccb3 | 104 | |
bb425013 AC |
105 | NOTE: cagney/2002-05-22: Only register_type() is used when |
106 | constructing the register cache. It is assumed that the | |
107 | register's raw size, virtual size and type length are all the | |
108 | same. */ | |
3fadccb3 AC |
109 | |
110 | { | |
111 | long offset = 0; | |
123f5f96 | 112 | |
116f06ea AC |
113 | descr->sizeof_register |
114 | = GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, long); | |
115 | descr->register_offset | |
116 | = GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, long); | |
d999647b | 117 | for (i = 0; i < gdbarch_num_regs (gdbarch); i++) |
99e42fd8 PA |
118 | { |
119 | descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]); | |
120 | descr->register_offset[i] = offset; | |
121 | offset += descr->sizeof_register[i]; | |
122 | gdb_assert (MAX_REGISTER_SIZE >= descr->sizeof_register[i]); | |
123 | } | |
124 | /* Set the real size of the raw register cache buffer. */ | |
125 | descr->sizeof_raw_registers = offset; | |
126 | ||
127 | for (; i < descr->nr_cooked_registers; i++) | |
3fadccb3 | 128 | { |
bb425013 | 129 | descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]); |
3fadccb3 AC |
130 | descr->register_offset[i] = offset; |
131 | offset += descr->sizeof_register[i]; | |
123a958e | 132 | gdb_assert (MAX_REGISTER_SIZE >= descr->sizeof_register[i]); |
3fadccb3 | 133 | } |
99e42fd8 | 134 | /* Set the real size of the readonly register cache buffer. */ |
067df2e5 | 135 | descr->sizeof_cooked_registers = offset; |
3fadccb3 AC |
136 | } |
137 | ||
3fadccb3 AC |
138 | return descr; |
139 | } | |
140 | ||
141 | static struct regcache_descr * | |
142 | regcache_descr (struct gdbarch *gdbarch) | |
143 | { | |
19ba03f4 SM |
144 | return (struct regcache_descr *) gdbarch_data (gdbarch, |
145 | regcache_descr_handle); | |
3fadccb3 AC |
146 | } |
147 | ||
bb425013 AC |
148 | /* Utility functions returning useful register attributes stored in |
149 | the regcache descr. */ | |
150 | ||
151 | struct type * | |
152 | register_type (struct gdbarch *gdbarch, int regnum) | |
153 | { | |
154 | struct regcache_descr *descr = regcache_descr (gdbarch); | |
123f5f96 | 155 | |
bb425013 AC |
156 | gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers); |
157 | return descr->register_type[regnum]; | |
158 | } | |
159 | ||
0ed04cce AC |
160 | /* Utility functions returning useful register attributes stored in |
161 | the regcache descr. */ | |
162 | ||
08a617da AC |
163 | int |
164 | register_size (struct gdbarch *gdbarch, int regnum) | |
165 | { | |
166 | struct regcache_descr *descr = regcache_descr (gdbarch); | |
167 | int size; | |
123f5f96 | 168 | |
f57d151a | 169 | gdb_assert (regnum >= 0 |
214e098a UW |
170 | && regnum < (gdbarch_num_regs (gdbarch) |
171 | + gdbarch_num_pseudo_regs (gdbarch))); | |
08a617da | 172 | size = descr->sizeof_register[regnum]; |
08a617da AC |
173 | return size; |
174 | } | |
175 | ||
8d689ee5 YQ |
176 | /* See common/common-regcache.h. */ |
177 | ||
178 | int | |
179 | regcache_register_size (const struct regcache *regcache, int n) | |
180 | { | |
ac7936df | 181 | return register_size (regcache->arch (), n); |
8d689ee5 YQ |
182 | } |
183 | ||
31716595 YQ |
184 | reg_buffer::reg_buffer (gdbarch *gdbarch, bool has_pseudo) |
185 | : m_has_pseudo (has_pseudo) | |
3fadccb3 | 186 | { |
ef79d9a3 YQ |
187 | gdb_assert (gdbarch != NULL); |
188 | m_descr = regcache_descr (gdbarch); | |
4621115f | 189 | |
31716595 | 190 | if (has_pseudo) |
4621115f | 191 | { |
ef79d9a3 YQ |
192 | m_registers = XCNEWVEC (gdb_byte, m_descr->sizeof_cooked_registers); |
193 | m_register_status = XCNEWVEC (signed char, | |
6c5218df | 194 | m_descr->nr_cooked_registers); |
4621115f YQ |
195 | } |
196 | else | |
197 | { | |
ef79d9a3 | 198 | m_registers = XCNEWVEC (gdb_byte, m_descr->sizeof_raw_registers); |
d999647b | 199 | m_register_status = XCNEWVEC (signed char, gdbarch_num_regs (gdbarch)); |
4621115f | 200 | } |
31716595 YQ |
201 | } |
202 | ||
203 | regcache::regcache (gdbarch *gdbarch, const address_space *aspace_, | |
204 | bool readonly_p_) | |
205 | /* The register buffers. A read-only register cache can hold the | |
206 | full [0 .. gdbarch_num_regs + gdbarch_num_pseudo_regs) while a | |
207 | read/write register cache can only hold [0 .. gdbarch_num_regs). */ | |
c8ec2f33 | 208 | : detached_regcache (gdbarch, readonly_p_), |
31716595 YQ |
209 | m_aspace (aspace_), m_readonly_p (readonly_p_) |
210 | { | |
ef79d9a3 YQ |
211 | m_ptid = minus_one_ptid; |
212 | } | |
4621115f | 213 | |
deb1fa3e YQ |
214 | static enum register_status |
215 | do_cooked_read (void *src, int regnum, gdb_byte *buf) | |
216 | { | |
217 | struct regcache *regcache = (struct regcache *) src; | |
218 | ||
219 | return regcache_cooked_read (regcache, regnum, buf); | |
220 | } | |
221 | ||
222 | regcache::regcache (readonly_t, const regcache &src) | |
f26ae15b | 223 | : regcache (src.arch (), nullptr, true) |
deb1fa3e YQ |
224 | { |
225 | gdb_assert (!src.m_readonly_p); | |
226 | save (do_cooked_read, (void *) &src); | |
227 | } | |
228 | ||
daf6667d YQ |
229 | readonly_detached_regcache::readonly_detached_regcache (const regcache &src) |
230 | : readonly_detached_regcache (src.arch (), do_cooked_read, (void *) &src) | |
231 | { | |
232 | } | |
233 | ||
ef79d9a3 | 234 | gdbarch * |
31716595 | 235 | reg_buffer::arch () const |
ef79d9a3 YQ |
236 | { |
237 | return m_descr->gdbarch; | |
238 | } | |
3fadccb3 | 239 | |
ddaaf0fb SM |
240 | /* See regcache.h. */ |
241 | ||
242 | ptid_t | |
243 | regcache_get_ptid (const struct regcache *regcache) | |
244 | { | |
ef79d9a3 | 245 | gdb_assert (!ptid_equal (regcache->ptid (), minus_one_ptid)); |
ddaaf0fb | 246 | |
ef79d9a3 | 247 | return regcache->ptid (); |
ddaaf0fb SM |
248 | } |
249 | ||
b292235f | 250 | /* Cleanup class for invalidating a register. */ |
b94ade42 | 251 | |
b292235f | 252 | class regcache_invalidator |
b94ade42 | 253 | { |
b292235f | 254 | public: |
b94ade42 | 255 | |
b292235f TT |
256 | regcache_invalidator (struct regcache *regcache, int regnum) |
257 | : m_regcache (regcache), | |
258 | m_regnum (regnum) | |
259 | { | |
260 | } | |
b94ade42 | 261 | |
b292235f TT |
262 | ~regcache_invalidator () |
263 | { | |
264 | if (m_regcache != nullptr) | |
265 | regcache_invalidate (m_regcache, m_regnum); | |
266 | } | |
b94ade42 | 267 | |
b292235f | 268 | DISABLE_COPY_AND_ASSIGN (regcache_invalidator); |
b94ade42 | 269 | |
b292235f TT |
270 | void release () |
271 | { | |
272 | m_regcache = nullptr; | |
273 | } | |
274 | ||
275 | private: | |
276 | ||
277 | struct regcache *m_regcache; | |
278 | int m_regnum; | |
279 | }; | |
b94ade42 | 280 | |
51b1fe4e AC |
281 | /* Return a pointer to register REGNUM's buffer cache. */ |
282 | ||
ef79d9a3 | 283 | gdb_byte * |
31716595 | 284 | reg_buffer::register_buffer (int regnum) const |
51b1fe4e | 285 | { |
ef79d9a3 | 286 | return m_registers + m_descr->register_offset[regnum]; |
51b1fe4e AC |
287 | } |
288 | ||
ef79d9a3 | 289 | void |
daf6667d YQ |
290 | reg_buffer::save (regcache_cooked_read_ftype *cooked_read, |
291 | void *src) | |
ef79d9a3 YQ |
292 | { |
293 | struct gdbarch *gdbarch = m_descr->gdbarch; | |
2d28509a | 294 | int regnum; |
123f5f96 | 295 | |
daf6667d YQ |
296 | /* It should have pseudo registers. */ |
297 | gdb_assert (m_has_pseudo); | |
2d28509a | 298 | /* Clear the dest. */ |
ef79d9a3 | 299 | memset (m_registers, 0, m_descr->sizeof_cooked_registers); |
6c5218df | 300 | memset (m_register_status, 0, m_descr->nr_cooked_registers); |
2d28509a | 301 | /* Copy over any registers (identified by their membership in the |
f57d151a UW |
302 | save_reggroup) and mark them as valid. The full [0 .. gdbarch_num_regs + |
303 | gdbarch_num_pseudo_regs) range is checked since some architectures need | |
5602984a | 304 | to save/restore `cooked' registers that live in memory. */ |
ef79d9a3 | 305 | for (regnum = 0; regnum < m_descr->nr_cooked_registers; regnum++) |
2d28509a AC |
306 | { |
307 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
308 | { | |
50d6adef AH |
309 | gdb_byte *dst_buf = register_buffer (regnum); |
310 | enum register_status status = cooked_read (src, regnum, dst_buf); | |
123f5f96 | 311 | |
50d6adef AH |
312 | gdb_assert (status != REG_UNKNOWN); |
313 | ||
314 | if (status != REG_VALID) | |
315 | memset (dst_buf, 0, register_size (gdbarch, regnum)); | |
05d1431c | 316 | |
ef79d9a3 | 317 | m_register_status[regnum] = status; |
2d28509a AC |
318 | } |
319 | } | |
320 | } | |
321 | ||
ef79d9a3 | 322 | void |
daf6667d | 323 | regcache::restore (readonly_detached_regcache *src) |
2d28509a | 324 | { |
ef79d9a3 | 325 | struct gdbarch *gdbarch = m_descr->gdbarch; |
2d28509a | 326 | int regnum; |
123f5f96 | 327 | |
fc5b8736 | 328 | gdb_assert (src != NULL); |
ef79d9a3 | 329 | gdb_assert (!m_readonly_p); |
daf6667d | 330 | gdb_assert (src->m_has_pseudo); |
fc5b8736 YQ |
331 | |
332 | gdb_assert (gdbarch == src->arch ()); | |
333 | ||
2d28509a | 334 | /* Copy over any registers, being careful to only restore those that |
f57d151a UW |
335 | were both saved and need to be restored. The full [0 .. gdbarch_num_regs |
336 | + gdbarch_num_pseudo_regs) range is checked since some architectures need | |
5602984a | 337 | to save/restore `cooked' registers that live in memory. */ |
ef79d9a3 | 338 | for (regnum = 0; regnum < m_descr->nr_cooked_registers; regnum++) |
2d28509a | 339 | { |
5602984a | 340 | if (gdbarch_register_reggroup_p (gdbarch, regnum, restore_reggroup)) |
2d28509a | 341 | { |
ef79d9a3 YQ |
342 | if (src->m_register_status[regnum] == REG_VALID) |
343 | cooked_write (regnum, src->register_buffer (regnum)); | |
2d28509a AC |
344 | } |
345 | } | |
346 | } | |
347 | ||
39181896 | 348 | enum register_status |
ee99023e | 349 | regcache_register_status (const struct regcache *regcache, int regnum) |
3fadccb3 AC |
350 | { |
351 | gdb_assert (regcache != NULL); | |
ef79d9a3 YQ |
352 | return regcache->get_register_status (regnum); |
353 | } | |
354 | ||
355 | enum register_status | |
c8ec2f33 | 356 | reg_buffer::get_register_status (int regnum) const |
ef79d9a3 | 357 | { |
c8ec2f33 | 358 | assert_regnum (regnum); |
6ed7ea50 | 359 | |
ef79d9a3 | 360 | return (enum register_status) m_register_status[regnum]; |
3fadccb3 AC |
361 | } |
362 | ||
9c5ea4d9 UW |
363 | void |
364 | regcache_invalidate (struct regcache *regcache, int regnum) | |
365 | { | |
366 | gdb_assert (regcache != NULL); | |
ef79d9a3 | 367 | regcache->invalidate (regnum); |
9c5ea4d9 UW |
368 | } |
369 | ||
ef79d9a3 YQ |
370 | void |
371 | regcache::invalidate (int regnum) | |
372 | { | |
ef79d9a3 | 373 | gdb_assert (!m_readonly_p); |
4e888c28 | 374 | assert_regnum (regnum); |
ef79d9a3 YQ |
375 | m_register_status[regnum] = REG_UNKNOWN; |
376 | } | |
9c5ea4d9 | 377 | |
4e888c28 | 378 | void |
31716595 | 379 | reg_buffer::assert_regnum (int regnum) const |
4e888c28 | 380 | { |
31716595 YQ |
381 | gdb_assert (regnum >= 0); |
382 | if (m_has_pseudo) | |
383 | gdb_assert (regnum < m_descr->nr_cooked_registers); | |
384 | else | |
385 | gdb_assert (regnum < gdbarch_num_regs (arch ())); | |
4e888c28 YQ |
386 | } |
387 | ||
3fadccb3 | 388 | /* Global structure containing the current regcache. */ |
3fadccb3 | 389 | |
5ebd2499 | 390 | /* NOTE: this is a write-through cache. There is no "dirty" bit for |
32178cab MS |
391 | recording if the register values have been changed (eg. by the |
392 | user). Therefore all registers must be written back to the | |
393 | target when appropriate. */ | |
e521e87e | 394 | std::forward_list<regcache *> regcache::current_regcache; |
c2250ad1 UW |
395 | |
396 | struct regcache * | |
e2d96639 YQ |
397 | get_thread_arch_aspace_regcache (ptid_t ptid, struct gdbarch *gdbarch, |
398 | struct address_space *aspace) | |
c2250ad1 | 399 | { |
e521e87e | 400 | for (const auto ®cache : regcache::current_regcache) |
94bb8dfe YQ |
401 | if (ptid_equal (regcache->ptid (), ptid) && regcache->arch () == gdbarch) |
402 | return regcache; | |
594f7785 | 403 | |
94bb8dfe | 404 | regcache *new_regcache = new regcache (gdbarch, aspace, false); |
594f7785 | 405 | |
e521e87e | 406 | regcache::current_regcache.push_front (new_regcache); |
ef79d9a3 | 407 | new_regcache->set_ptid (ptid); |
e2d96639 | 408 | |
e2d96639 YQ |
409 | return new_regcache; |
410 | } | |
411 | ||
412 | struct regcache * | |
413 | get_thread_arch_regcache (ptid_t ptid, struct gdbarch *gdbarch) | |
414 | { | |
ed4227b7 | 415 | address_space *aspace = target_thread_address_space (ptid); |
b78974c3 | 416 | |
e2d96639 | 417 | return get_thread_arch_aspace_regcache (ptid, gdbarch, aspace); |
594f7785 UW |
418 | } |
419 | ||
c2250ad1 UW |
420 | static ptid_t current_thread_ptid; |
421 | static struct gdbarch *current_thread_arch; | |
422 | ||
423 | struct regcache * | |
424 | get_thread_regcache (ptid_t ptid) | |
425 | { | |
426 | if (!current_thread_arch || !ptid_equal (current_thread_ptid, ptid)) | |
427 | { | |
428 | current_thread_ptid = ptid; | |
429 | current_thread_arch = target_thread_architecture (ptid); | |
430 | } | |
431 | ||
432 | return get_thread_arch_regcache (ptid, current_thread_arch); | |
433 | } | |
434 | ||
435 | struct regcache * | |
436 | get_current_regcache (void) | |
594f7785 UW |
437 | { |
438 | return get_thread_regcache (inferior_ptid); | |
439 | } | |
32178cab | 440 | |
361c8ade GB |
441 | /* See common/common-regcache.h. */ |
442 | ||
443 | struct regcache * | |
444 | get_thread_regcache_for_ptid (ptid_t ptid) | |
445 | { | |
446 | return get_thread_regcache (ptid); | |
447 | } | |
32178cab | 448 | |
f4c5303c OF |
449 | /* Observer for the target_changed event. */ |
450 | ||
2c0b251b | 451 | static void |
f4c5303c OF |
452 | regcache_observer_target_changed (struct target_ops *target) |
453 | { | |
454 | registers_changed (); | |
455 | } | |
456 | ||
5231c1fd PA |
457 | /* Update global variables old ptids to hold NEW_PTID if they were |
458 | holding OLD_PTID. */ | |
e521e87e YQ |
459 | void |
460 | regcache::regcache_thread_ptid_changed (ptid_t old_ptid, ptid_t new_ptid) | |
5231c1fd | 461 | { |
e521e87e | 462 | for (auto ®cache : regcache::current_regcache) |
94bb8dfe YQ |
463 | { |
464 | if (ptid_equal (regcache->ptid (), old_ptid)) | |
465 | regcache->set_ptid (new_ptid); | |
466 | } | |
5231c1fd PA |
467 | } |
468 | ||
32178cab MS |
469 | /* Low level examining and depositing of registers. |
470 | ||
471 | The caller is responsible for making sure that the inferior is | |
472 | stopped before calling the fetching routines, or it will get | |
473 | garbage. (a change from GDB version 3, in which the caller got the | |
474 | value from the last stop). */ | |
475 | ||
476 | /* REGISTERS_CHANGED () | |
477 | ||
478 | Indicate that registers may have changed, so invalidate the cache. */ | |
479 | ||
480 | void | |
e66408ed | 481 | registers_changed_ptid (ptid_t ptid) |
32178cab | 482 | { |
e521e87e | 483 | for (auto oit = regcache::current_regcache.before_begin (), |
94bb8dfe | 484 | it = std::next (oit); |
e521e87e | 485 | it != regcache::current_regcache.end (); |
94bb8dfe | 486 | ) |
c2250ad1 | 487 | { |
94bb8dfe | 488 | if (ptid_match ((*it)->ptid (), ptid)) |
e66408ed | 489 | { |
94bb8dfe | 490 | delete *it; |
e521e87e | 491 | it = regcache::current_regcache.erase_after (oit); |
e66408ed | 492 | } |
94bb8dfe YQ |
493 | else |
494 | oit = it++; | |
c2250ad1 | 495 | } |
32178cab | 496 | |
c34fd852 | 497 | if (ptid_match (current_thread_ptid, ptid)) |
041274d8 PA |
498 | { |
499 | current_thread_ptid = null_ptid; | |
500 | current_thread_arch = NULL; | |
501 | } | |
32178cab | 502 | |
c34fd852 | 503 | if (ptid_match (inferior_ptid, ptid)) |
041274d8 PA |
504 | { |
505 | /* We just deleted the regcache of the current thread. Need to | |
506 | forget about any frames we have cached, too. */ | |
507 | reinit_frame_cache (); | |
508 | } | |
509 | } | |
c2250ad1 | 510 | |
041274d8 PA |
511 | void |
512 | registers_changed (void) | |
513 | { | |
514 | registers_changed_ptid (minus_one_ptid); | |
a5d9d57d | 515 | |
32178cab MS |
516 | /* Force cleanup of any alloca areas if using C alloca instead of |
517 | a builtin alloca. This particular call is used to clean up | |
518 | areas allocated by low level target code which may build up | |
519 | during lengthy interactions between gdb and the target before | |
520 | gdb gives control to the user (ie watchpoints). */ | |
521 | alloca (0); | |
32178cab MS |
522 | } |
523 | ||
8e368124 AH |
524 | void |
525 | regcache_raw_update (struct regcache *regcache, int regnum) | |
61a0eb5b | 526 | { |
8e368124 | 527 | gdb_assert (regcache != NULL); |
ef79d9a3 YQ |
528 | |
529 | regcache->raw_update (regnum); | |
530 | } | |
531 | ||
532 | void | |
533 | regcache::raw_update (int regnum) | |
534 | { | |
4e888c28 | 535 | assert_regnum (regnum); |
8e368124 | 536 | |
3fadccb3 AC |
537 | /* Make certain that the register cache is up-to-date with respect |
538 | to the current thread. This switching shouldn't be necessary | |
539 | only there is still only one target side register cache. Sigh! | |
540 | On the bright side, at least there is a regcache object. */ | |
8e368124 | 541 | |
ef79d9a3 | 542 | if (!m_readonly_p && get_register_status (regnum) == REG_UNKNOWN) |
3fadccb3 | 543 | { |
ef79d9a3 | 544 | target_fetch_registers (this, regnum); |
788c8b10 PA |
545 | |
546 | /* A number of targets can't access the whole set of raw | |
547 | registers (because the debug API provides no means to get at | |
548 | them). */ | |
ef79d9a3 YQ |
549 | if (m_register_status[regnum] == REG_UNKNOWN) |
550 | m_register_status[regnum] = REG_UNAVAILABLE; | |
3fadccb3 | 551 | } |
8e368124 AH |
552 | } |
553 | ||
554 | enum register_status | |
555 | regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf) | |
ef79d9a3 YQ |
556 | { |
557 | return regcache->raw_read (regnum, buf); | |
558 | } | |
559 | ||
560 | enum register_status | |
849d0ba8 | 561 | readable_regcache::raw_read (int regnum, gdb_byte *buf) |
8e368124 AH |
562 | { |
563 | gdb_assert (buf != NULL); | |
ef79d9a3 | 564 | raw_update (regnum); |
05d1431c | 565 | |
ef79d9a3 YQ |
566 | if (m_register_status[regnum] != REG_VALID) |
567 | memset (buf, 0, m_descr->sizeof_register[regnum]); | |
05d1431c | 568 | else |
ef79d9a3 YQ |
569 | memcpy (buf, register_buffer (regnum), |
570 | m_descr->sizeof_register[regnum]); | |
05d1431c | 571 | |
ef79d9a3 | 572 | return (enum register_status) m_register_status[regnum]; |
61a0eb5b AC |
573 | } |
574 | ||
05d1431c | 575 | enum register_status |
28fc6740 | 576 | regcache_raw_read_signed (struct regcache *regcache, int regnum, LONGEST *val) |
ef79d9a3 YQ |
577 | { |
578 | gdb_assert (regcache != NULL); | |
6f98355c | 579 | return regcache->raw_read (regnum, val); |
ef79d9a3 YQ |
580 | } |
581 | ||
6f98355c | 582 | template<typename T, typename> |
ef79d9a3 | 583 | enum register_status |
849d0ba8 | 584 | readable_regcache::raw_read (int regnum, T *val) |
28fc6740 | 585 | { |
2d522557 | 586 | gdb_byte *buf; |
05d1431c | 587 | enum register_status status; |
123f5f96 | 588 | |
4e888c28 | 589 | assert_regnum (regnum); |
ef79d9a3 YQ |
590 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); |
591 | status = raw_read (regnum, buf); | |
05d1431c | 592 | if (status == REG_VALID) |
6f98355c YQ |
593 | *val = extract_integer<T> (buf, |
594 | m_descr->sizeof_register[regnum], | |
595 | gdbarch_byte_order (m_descr->gdbarch)); | |
05d1431c PA |
596 | else |
597 | *val = 0; | |
598 | return status; | |
28fc6740 AC |
599 | } |
600 | ||
05d1431c | 601 | enum register_status |
28fc6740 AC |
602 | regcache_raw_read_unsigned (struct regcache *regcache, int regnum, |
603 | ULONGEST *val) | |
ef79d9a3 YQ |
604 | { |
605 | gdb_assert (regcache != NULL); | |
6f98355c | 606 | return regcache->raw_read (regnum, val); |
28fc6740 AC |
607 | } |
608 | ||
c00dcbe9 MK |
609 | void |
610 | regcache_raw_write_signed (struct regcache *regcache, int regnum, LONGEST val) | |
ef79d9a3 YQ |
611 | { |
612 | gdb_assert (regcache != NULL); | |
6f98355c | 613 | regcache->raw_write (regnum, val); |
ef79d9a3 YQ |
614 | } |
615 | ||
6f98355c | 616 | template<typename T, typename> |
ef79d9a3 | 617 | void |
6f98355c | 618 | regcache::raw_write (int regnum, T val) |
c00dcbe9 | 619 | { |
7c543f7b | 620 | gdb_byte *buf; |
123f5f96 | 621 | |
4e888c28 | 622 | assert_regnum (regnum); |
ef79d9a3 | 623 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); |
6f98355c YQ |
624 | store_integer (buf, m_descr->sizeof_register[regnum], |
625 | gdbarch_byte_order (m_descr->gdbarch), val); | |
ef79d9a3 | 626 | raw_write (regnum, buf); |
c00dcbe9 MK |
627 | } |
628 | ||
629 | void | |
630 | regcache_raw_write_unsigned (struct regcache *regcache, int regnum, | |
631 | ULONGEST val) | |
ef79d9a3 YQ |
632 | { |
633 | gdb_assert (regcache != NULL); | |
6f98355c | 634 | regcache->raw_write (regnum, val); |
c00dcbe9 MK |
635 | } |
636 | ||
9fd15b2e YQ |
637 | LONGEST |
638 | regcache_raw_get_signed (struct regcache *regcache, int regnum) | |
639 | { | |
640 | LONGEST value; | |
641 | enum register_status status; | |
642 | ||
643 | status = regcache_raw_read_signed (regcache, regnum, &value); | |
644 | if (status == REG_UNAVAILABLE) | |
645 | throw_error (NOT_AVAILABLE_ERROR, | |
646 | _("Register %d is not available"), regnum); | |
647 | return value; | |
648 | } | |
649 | ||
05d1431c | 650 | enum register_status |
2d522557 | 651 | regcache_cooked_read (struct regcache *regcache, int regnum, gdb_byte *buf) |
ef79d9a3 YQ |
652 | { |
653 | return regcache->cooked_read (regnum, buf); | |
654 | } | |
655 | ||
656 | enum register_status | |
849d0ba8 | 657 | readable_regcache::cooked_read (int regnum, gdb_byte *buf) |
68365089 | 658 | { |
d138e37a | 659 | gdb_assert (regnum >= 0); |
ef79d9a3 | 660 | gdb_assert (regnum < m_descr->nr_cooked_registers); |
d999647b | 661 | if (regnum < num_raw_registers ()) |
ef79d9a3 | 662 | return raw_read (regnum, buf); |
849d0ba8 | 663 | else if (m_has_pseudo |
ef79d9a3 | 664 | && m_register_status[regnum] != REG_UNKNOWN) |
05d1431c | 665 | { |
ef79d9a3 YQ |
666 | if (m_register_status[regnum] == REG_VALID) |
667 | memcpy (buf, register_buffer (regnum), | |
668 | m_descr->sizeof_register[regnum]); | |
05d1431c | 669 | else |
ef79d9a3 | 670 | memset (buf, 0, m_descr->sizeof_register[regnum]); |
05d1431c | 671 | |
ef79d9a3 | 672 | return (enum register_status) m_register_status[regnum]; |
05d1431c | 673 | } |
ef79d9a3 | 674 | else if (gdbarch_pseudo_register_read_value_p (m_descr->gdbarch)) |
3543a589 TT |
675 | { |
676 | struct value *mark, *computed; | |
677 | enum register_status result = REG_VALID; | |
678 | ||
679 | mark = value_mark (); | |
680 | ||
ef79d9a3 YQ |
681 | computed = gdbarch_pseudo_register_read_value (m_descr->gdbarch, |
682 | this, regnum); | |
3543a589 TT |
683 | if (value_entirely_available (computed)) |
684 | memcpy (buf, value_contents_raw (computed), | |
ef79d9a3 | 685 | m_descr->sizeof_register[regnum]); |
3543a589 TT |
686 | else |
687 | { | |
ef79d9a3 | 688 | memset (buf, 0, m_descr->sizeof_register[regnum]); |
3543a589 TT |
689 | result = REG_UNAVAILABLE; |
690 | } | |
691 | ||
692 | value_free_to_mark (mark); | |
693 | ||
694 | return result; | |
695 | } | |
d138e37a | 696 | else |
ef79d9a3 | 697 | return gdbarch_pseudo_register_read (m_descr->gdbarch, this, |
05d1431c | 698 | regnum, buf); |
61a0eb5b AC |
699 | } |
700 | ||
3543a589 TT |
701 | struct value * |
702 | regcache_cooked_read_value (struct regcache *regcache, int regnum) | |
ef79d9a3 YQ |
703 | { |
704 | return regcache->cooked_read_value (regnum); | |
705 | } | |
706 | ||
707 | struct value * | |
849d0ba8 | 708 | readable_regcache::cooked_read_value (int regnum) |
3543a589 TT |
709 | { |
710 | gdb_assert (regnum >= 0); | |
ef79d9a3 | 711 | gdb_assert (regnum < m_descr->nr_cooked_registers); |
3543a589 | 712 | |
d999647b | 713 | if (regnum < num_raw_registers () |
849d0ba8 | 714 | || (m_has_pseudo && m_register_status[regnum] != REG_UNKNOWN) |
ef79d9a3 | 715 | || !gdbarch_pseudo_register_read_value_p (m_descr->gdbarch)) |
3543a589 TT |
716 | { |
717 | struct value *result; | |
718 | ||
ef79d9a3 | 719 | result = allocate_value (register_type (m_descr->gdbarch, regnum)); |
3543a589 TT |
720 | VALUE_LVAL (result) = lval_register; |
721 | VALUE_REGNUM (result) = regnum; | |
722 | ||
723 | /* It is more efficient in general to do this delegation in this | |
724 | direction than in the other one, even though the value-based | |
725 | API is preferred. */ | |
ef79d9a3 YQ |
726 | if (cooked_read (regnum, |
727 | value_contents_raw (result)) == REG_UNAVAILABLE) | |
3543a589 TT |
728 | mark_value_bytes_unavailable (result, 0, |
729 | TYPE_LENGTH (value_type (result))); | |
730 | ||
731 | return result; | |
732 | } | |
733 | else | |
ef79d9a3 YQ |
734 | return gdbarch_pseudo_register_read_value (m_descr->gdbarch, |
735 | this, regnum); | |
3543a589 TT |
736 | } |
737 | ||
05d1431c | 738 | enum register_status |
a378f419 AC |
739 | regcache_cooked_read_signed (struct regcache *regcache, int regnum, |
740 | LONGEST *val) | |
ef79d9a3 YQ |
741 | { |
742 | gdb_assert (regcache != NULL); | |
6f98355c | 743 | return regcache->cooked_read (regnum, val); |
ef79d9a3 YQ |
744 | } |
745 | ||
6f98355c | 746 | template<typename T, typename> |
ef79d9a3 | 747 | enum register_status |
849d0ba8 | 748 | readable_regcache::cooked_read (int regnum, T *val) |
a378f419 | 749 | { |
05d1431c | 750 | enum register_status status; |
2d522557 | 751 | gdb_byte *buf; |
123f5f96 | 752 | |
ef79d9a3 YQ |
753 | gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers); |
754 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); | |
755 | status = cooked_read (regnum, buf); | |
05d1431c | 756 | if (status == REG_VALID) |
6f98355c YQ |
757 | *val = extract_integer<T> (buf, m_descr->sizeof_register[regnum], |
758 | gdbarch_byte_order (m_descr->gdbarch)); | |
05d1431c PA |
759 | else |
760 | *val = 0; | |
761 | return status; | |
a378f419 AC |
762 | } |
763 | ||
05d1431c | 764 | enum register_status |
a378f419 AC |
765 | regcache_cooked_read_unsigned (struct regcache *regcache, int regnum, |
766 | ULONGEST *val) | |
ef79d9a3 YQ |
767 | { |
768 | gdb_assert (regcache != NULL); | |
6f98355c | 769 | return regcache->cooked_read (regnum, val); |
a378f419 AC |
770 | } |
771 | ||
a66a9c23 AC |
772 | void |
773 | regcache_cooked_write_signed (struct regcache *regcache, int regnum, | |
774 | LONGEST val) | |
ef79d9a3 YQ |
775 | { |
776 | gdb_assert (regcache != NULL); | |
6f98355c | 777 | regcache->cooked_write (regnum, val); |
ef79d9a3 YQ |
778 | } |
779 | ||
6f98355c | 780 | template<typename T, typename> |
ef79d9a3 | 781 | void |
6f98355c | 782 | regcache::cooked_write (int regnum, T val) |
a66a9c23 | 783 | { |
7c543f7b | 784 | gdb_byte *buf; |
123f5f96 | 785 | |
ef79d9a3 YQ |
786 | gdb_assert (regnum >=0 && regnum < m_descr->nr_cooked_registers); |
787 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); | |
6f98355c YQ |
788 | store_integer (buf, m_descr->sizeof_register[regnum], |
789 | gdbarch_byte_order (m_descr->gdbarch), val); | |
ef79d9a3 | 790 | cooked_write (regnum, buf); |
a66a9c23 AC |
791 | } |
792 | ||
793 | void | |
794 | regcache_cooked_write_unsigned (struct regcache *regcache, int regnum, | |
795 | ULONGEST val) | |
ef79d9a3 YQ |
796 | { |
797 | gdb_assert (regcache != NULL); | |
6f98355c | 798 | regcache->cooked_write (regnum, val); |
a66a9c23 AC |
799 | } |
800 | ||
61a0eb5b | 801 | void |
2d522557 AC |
802 | regcache_raw_write (struct regcache *regcache, int regnum, |
803 | const gdb_byte *buf) | |
ef79d9a3 YQ |
804 | { |
805 | gdb_assert (regcache != NULL && buf != NULL); | |
806 | regcache->raw_write (regnum, buf); | |
807 | } | |
808 | ||
809 | void | |
810 | regcache::raw_write (int regnum, const gdb_byte *buf) | |
61a0eb5b | 811 | { |
594f7785 | 812 | |
ef79d9a3 | 813 | gdb_assert (buf != NULL); |
4e888c28 | 814 | assert_regnum (regnum); |
ef79d9a3 | 815 | gdb_assert (!m_readonly_p); |
3fadccb3 | 816 | |
3fadccb3 AC |
817 | /* On the sparc, writing %g0 is a no-op, so we don't even want to |
818 | change the registers array if something writes to this register. */ | |
ef79d9a3 | 819 | if (gdbarch_cannot_store_register (arch (), regnum)) |
3fadccb3 AC |
820 | return; |
821 | ||
3fadccb3 | 822 | /* If we have a valid copy of the register, and new value == old |
0df8b418 | 823 | value, then don't bother doing the actual store. */ |
ef79d9a3 YQ |
824 | if (get_register_status (regnum) == REG_VALID |
825 | && (memcmp (register_buffer (regnum), buf, | |
826 | m_descr->sizeof_register[regnum]) == 0)) | |
3fadccb3 AC |
827 | return; |
828 | ||
ef79d9a3 | 829 | target_prepare_to_store (this); |
c8ec2f33 | 830 | raw_supply (regnum, buf); |
b94ade42 | 831 | |
b292235f TT |
832 | /* Invalidate the register after it is written, in case of a |
833 | failure. */ | |
834 | regcache_invalidator invalidator (this, regnum); | |
b94ade42 | 835 | |
ef79d9a3 | 836 | target_store_registers (this, regnum); |
594f7785 | 837 | |
b292235f TT |
838 | /* The target did not throw an error so we can discard invalidating |
839 | the register. */ | |
840 | invalidator.release (); | |
61a0eb5b AC |
841 | } |
842 | ||
68365089 | 843 | void |
2d522557 AC |
844 | regcache_cooked_write (struct regcache *regcache, int regnum, |
845 | const gdb_byte *buf) | |
ef79d9a3 YQ |
846 | { |
847 | regcache->cooked_write (regnum, buf); | |
848 | } | |
849 | ||
850 | void | |
851 | regcache::cooked_write (int regnum, const gdb_byte *buf) | |
68365089 | 852 | { |
d138e37a | 853 | gdb_assert (regnum >= 0); |
ef79d9a3 | 854 | gdb_assert (regnum < m_descr->nr_cooked_registers); |
d999647b | 855 | if (regnum < num_raw_registers ()) |
ef79d9a3 | 856 | raw_write (regnum, buf); |
d138e37a | 857 | else |
ef79d9a3 | 858 | gdbarch_pseudo_register_write (m_descr->gdbarch, this, |
d8124050 | 859 | regnum, buf); |
61a0eb5b AC |
860 | } |
861 | ||
06c0b04e AC |
862 | /* Perform a partial register transfer using a read, modify, write |
863 | operation. */ | |
864 | ||
865 | typedef void (regcache_read_ftype) (struct regcache *regcache, int regnum, | |
866 | void *buf); | |
867 | typedef void (regcache_write_ftype) (struct regcache *regcache, int regnum, | |
868 | const void *buf); | |
869 | ||
ef79d9a3 | 870 | enum register_status |
849d0ba8 YQ |
871 | readable_regcache::read_part (int regnum, int offset, int len, void *in, |
872 | bool is_raw) | |
873 | { | |
874 | struct gdbarch *gdbarch = arch (); | |
875 | gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum)); | |
876 | ||
877 | gdb_assert (in != NULL); | |
878 | gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]); | |
879 | gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]); | |
880 | /* Something to do? */ | |
881 | if (offset + len == 0) | |
882 | return REG_VALID; | |
883 | /* Read (when needed) ... */ | |
884 | enum register_status status; | |
885 | ||
886 | if (is_raw) | |
887 | status = raw_read (regnum, reg); | |
888 | else | |
889 | status = cooked_read (regnum, reg); | |
890 | if (status != REG_VALID) | |
891 | return status; | |
892 | ||
893 | /* ... modify ... */ | |
894 | memcpy (in, reg + offset, len); | |
895 | ||
896 | return REG_VALID; | |
897 | } | |
898 | ||
899 | enum register_status | |
900 | regcache::write_part (int regnum, int offset, int len, | |
d3037ba6 | 901 | const void *out, bool is_raw) |
ef79d9a3 YQ |
902 | { |
903 | struct gdbarch *gdbarch = arch (); | |
9890e433 | 904 | gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum)); |
123f5f96 | 905 | |
849d0ba8 | 906 | gdb_assert (out != NULL); |
ef79d9a3 YQ |
907 | gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]); |
908 | gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]); | |
06c0b04e AC |
909 | /* Something to do? */ |
910 | if (offset + len == 0) | |
05d1431c | 911 | return REG_VALID; |
0df8b418 | 912 | /* Read (when needed) ... */ |
849d0ba8 | 913 | if (offset > 0 |
ef79d9a3 | 914 | || offset + len < m_descr->sizeof_register[regnum]) |
06c0b04e | 915 | { |
05d1431c PA |
916 | enum register_status status; |
917 | ||
d3037ba6 YQ |
918 | if (is_raw) |
919 | status = raw_read (regnum, reg); | |
920 | else | |
921 | status = cooked_read (regnum, reg); | |
05d1431c PA |
922 | if (status != REG_VALID) |
923 | return status; | |
06c0b04e | 924 | } |
849d0ba8 YQ |
925 | |
926 | memcpy (reg + offset, out, len); | |
06c0b04e | 927 | /* ... write (when needed). */ |
849d0ba8 YQ |
928 | if (is_raw) |
929 | raw_write (regnum, reg); | |
930 | else | |
931 | cooked_write (regnum, reg); | |
05d1431c PA |
932 | |
933 | return REG_VALID; | |
06c0b04e AC |
934 | } |
935 | ||
05d1431c | 936 | enum register_status |
06c0b04e | 937 | regcache_raw_read_part (struct regcache *regcache, int regnum, |
2d522557 | 938 | int offset, int len, gdb_byte *buf) |
06c0b04e | 939 | { |
ef79d9a3 YQ |
940 | return regcache->raw_read_part (regnum, offset, len, buf); |
941 | } | |
123f5f96 | 942 | |
ef79d9a3 | 943 | enum register_status |
849d0ba8 | 944 | readable_regcache::raw_read_part (int regnum, int offset, int len, gdb_byte *buf) |
ef79d9a3 | 945 | { |
4e888c28 | 946 | assert_regnum (regnum); |
849d0ba8 | 947 | return read_part (regnum, offset, len, buf, true); |
06c0b04e AC |
948 | } |
949 | ||
950 | void | |
951 | regcache_raw_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 952 | int offset, int len, const gdb_byte *buf) |
06c0b04e | 953 | { |
ef79d9a3 YQ |
954 | regcache->raw_write_part (regnum, offset, len, buf); |
955 | } | |
123f5f96 | 956 | |
ef79d9a3 YQ |
957 | void |
958 | regcache::raw_write_part (int regnum, int offset, int len, | |
959 | const gdb_byte *buf) | |
960 | { | |
4e888c28 | 961 | assert_regnum (regnum); |
849d0ba8 | 962 | write_part (regnum, offset, len, buf, true); |
06c0b04e AC |
963 | } |
964 | ||
05d1431c | 965 | enum register_status |
06c0b04e | 966 | regcache_cooked_read_part (struct regcache *regcache, int regnum, |
2d522557 | 967 | int offset, int len, gdb_byte *buf) |
06c0b04e | 968 | { |
ef79d9a3 YQ |
969 | return regcache->cooked_read_part (regnum, offset, len, buf); |
970 | } | |
123f5f96 | 971 | |
ef79d9a3 YQ |
972 | |
973 | enum register_status | |
849d0ba8 YQ |
974 | readable_regcache::cooked_read_part (int regnum, int offset, int len, |
975 | gdb_byte *buf) | |
ef79d9a3 YQ |
976 | { |
977 | gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers); | |
849d0ba8 | 978 | return read_part (regnum, offset, len, buf, false); |
06c0b04e AC |
979 | } |
980 | ||
981 | void | |
982 | regcache_cooked_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 983 | int offset, int len, const gdb_byte *buf) |
06c0b04e | 984 | { |
ef79d9a3 YQ |
985 | regcache->cooked_write_part (regnum, offset, len, buf); |
986 | } | |
123f5f96 | 987 | |
ef79d9a3 YQ |
988 | void |
989 | regcache::cooked_write_part (int regnum, int offset, int len, | |
990 | const gdb_byte *buf) | |
991 | { | |
992 | gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers); | |
849d0ba8 | 993 | write_part (regnum, offset, len, buf, false); |
06c0b04e | 994 | } |
32178cab | 995 | |
a16d75cc | 996 | /* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */ |
9a661b68 MK |
997 | |
998 | void | |
6618125d | 999 | regcache_raw_supply (struct regcache *regcache, int regnum, const void *buf) |
ef79d9a3 YQ |
1000 | { |
1001 | gdb_assert (regcache != NULL); | |
1002 | regcache->raw_supply (regnum, buf); | |
1003 | } | |
1004 | ||
1005 | void | |
c8ec2f33 | 1006 | detached_regcache::raw_supply (int regnum, const void *buf) |
9a661b68 MK |
1007 | { |
1008 | void *regbuf; | |
1009 | size_t size; | |
1010 | ||
4e888c28 | 1011 | assert_regnum (regnum); |
9a661b68 | 1012 | |
ef79d9a3 YQ |
1013 | regbuf = register_buffer (regnum); |
1014 | size = m_descr->sizeof_register[regnum]; | |
9a661b68 MK |
1015 | |
1016 | if (buf) | |
ee99023e PA |
1017 | { |
1018 | memcpy (regbuf, buf, size); | |
ef79d9a3 | 1019 | m_register_status[regnum] = REG_VALID; |
ee99023e | 1020 | } |
9a661b68 | 1021 | else |
ee99023e PA |
1022 | { |
1023 | /* This memset not strictly necessary, but better than garbage | |
1024 | in case the register value manages to escape somewhere (due | |
1025 | to a bug, no less). */ | |
1026 | memset (regbuf, 0, size); | |
ef79d9a3 | 1027 | m_register_status[regnum] = REG_UNAVAILABLE; |
ee99023e | 1028 | } |
9a661b68 MK |
1029 | } |
1030 | ||
b057297a AH |
1031 | /* Supply register REGNUM to REGCACHE. Value to supply is an integer stored at |
1032 | address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED. If | |
1033 | the register size is greater than ADDR_LEN, then the integer will be sign or | |
1034 | zero extended. If the register size is smaller than the integer, then the | |
1035 | most significant bytes of the integer will be truncated. */ | |
1036 | ||
1037 | void | |
1038 | regcache::raw_supply_integer (int regnum, const gdb_byte *addr, int addr_len, | |
1039 | bool is_signed) | |
1040 | { | |
1041 | enum bfd_endian byte_order = gdbarch_byte_order (m_descr->gdbarch); | |
1042 | gdb_byte *regbuf; | |
1043 | size_t regsize; | |
1044 | ||
4e888c28 | 1045 | assert_regnum (regnum); |
b057297a AH |
1046 | gdb_assert (!m_readonly_p); |
1047 | ||
1048 | regbuf = register_buffer (regnum); | |
1049 | regsize = m_descr->sizeof_register[regnum]; | |
1050 | ||
1051 | copy_integer_to_size (regbuf, regsize, addr, addr_len, is_signed, | |
1052 | byte_order); | |
1053 | m_register_status[regnum] = REG_VALID; | |
1054 | } | |
1055 | ||
f81fdd35 AH |
1056 | /* Supply register REGNUM with zeroed value to REGCACHE. This is not the same |
1057 | as calling raw_supply with NULL (which will set the state to | |
1058 | unavailable). */ | |
1059 | ||
1060 | void | |
1061 | regcache::raw_supply_zeroed (int regnum) | |
1062 | { | |
1063 | void *regbuf; | |
1064 | size_t size; | |
1065 | ||
4e888c28 | 1066 | assert_regnum (regnum); |
f81fdd35 AH |
1067 | gdb_assert (!m_readonly_p); |
1068 | ||
1069 | regbuf = register_buffer (regnum); | |
1070 | size = m_descr->sizeof_register[regnum]; | |
1071 | ||
1072 | memset (regbuf, 0, size); | |
1073 | m_register_status[regnum] = REG_VALID; | |
1074 | } | |
1075 | ||
9a661b68 MK |
1076 | /* Collect register REGNUM from REGCACHE and store its contents in BUF. */ |
1077 | ||
1078 | void | |
6618125d | 1079 | regcache_raw_collect (const struct regcache *regcache, int regnum, void *buf) |
ef79d9a3 YQ |
1080 | { |
1081 | gdb_assert (regcache != NULL && buf != NULL); | |
1082 | regcache->raw_collect (regnum, buf); | |
1083 | } | |
1084 | ||
1085 | void | |
1086 | regcache::raw_collect (int regnum, void *buf) const | |
9a661b68 MK |
1087 | { |
1088 | const void *regbuf; | |
1089 | size_t size; | |
1090 | ||
ef79d9a3 | 1091 | gdb_assert (buf != NULL); |
4e888c28 | 1092 | assert_regnum (regnum); |
9a661b68 | 1093 | |
ef79d9a3 YQ |
1094 | regbuf = register_buffer (regnum); |
1095 | size = m_descr->sizeof_register[regnum]; | |
9a661b68 MK |
1096 | memcpy (buf, regbuf, size); |
1097 | } | |
1098 | ||
0b309272 AA |
1099 | /* Transfer a single or all registers belonging to a certain register |
1100 | set to or from a buffer. This is the main worker function for | |
1101 | regcache_supply_regset and regcache_collect_regset. */ | |
1102 | ||
b057297a AH |
1103 | /* Collect register REGNUM from REGCACHE. Store collected value as an integer |
1104 | at address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED. | |
1105 | If ADDR_LEN is greater than the register size, then the integer will be sign | |
1106 | or zero extended. If ADDR_LEN is smaller than the register size, then the | |
1107 | most significant bytes of the integer will be truncated. */ | |
1108 | ||
1109 | void | |
1110 | regcache::raw_collect_integer (int regnum, gdb_byte *addr, int addr_len, | |
1111 | bool is_signed) const | |
1112 | { | |
1113 | enum bfd_endian byte_order = gdbarch_byte_order (m_descr->gdbarch); | |
1114 | const gdb_byte *regbuf; | |
1115 | size_t regsize; | |
1116 | ||
4e888c28 | 1117 | assert_regnum (regnum); |
b057297a AH |
1118 | |
1119 | regbuf = register_buffer (regnum); | |
1120 | regsize = m_descr->sizeof_register[regnum]; | |
1121 | ||
1122 | copy_integer_to_size (addr, addr_len, regbuf, regsize, is_signed, | |
1123 | byte_order); | |
1124 | } | |
1125 | ||
ef79d9a3 YQ |
1126 | void |
1127 | regcache::transfer_regset (const struct regset *regset, | |
1128 | struct regcache *out_regcache, | |
1129 | int regnum, const void *in_buf, | |
1130 | void *out_buf, size_t size) const | |
0b309272 AA |
1131 | { |
1132 | const struct regcache_map_entry *map; | |
1133 | int offs = 0, count; | |
1134 | ||
19ba03f4 SM |
1135 | for (map = (const struct regcache_map_entry *) regset->regmap; |
1136 | (count = map->count) != 0; | |
1137 | map++) | |
0b309272 AA |
1138 | { |
1139 | int regno = map->regno; | |
1140 | int slot_size = map->size; | |
1141 | ||
1142 | if (slot_size == 0 && regno != REGCACHE_MAP_SKIP) | |
ef79d9a3 | 1143 | slot_size = m_descr->sizeof_register[regno]; |
0b309272 AA |
1144 | |
1145 | if (regno == REGCACHE_MAP_SKIP | |
1146 | || (regnum != -1 | |
1147 | && (regnum < regno || regnum >= regno + count))) | |
1148 | offs += count * slot_size; | |
1149 | ||
1150 | else if (regnum == -1) | |
1151 | for (; count--; regno++, offs += slot_size) | |
1152 | { | |
1153 | if (offs + slot_size > size) | |
1154 | break; | |
1155 | ||
1156 | if (out_buf) | |
ef79d9a3 | 1157 | raw_collect (regno, (gdb_byte *) out_buf + offs); |
0b309272 | 1158 | else |
ef79d9a3 YQ |
1159 | out_regcache->raw_supply (regno, in_buf |
1160 | ? (const gdb_byte *) in_buf + offs | |
1161 | : NULL); | |
0b309272 AA |
1162 | } |
1163 | else | |
1164 | { | |
1165 | /* Transfer a single register and return. */ | |
1166 | offs += (regnum - regno) * slot_size; | |
1167 | if (offs + slot_size > size) | |
1168 | return; | |
1169 | ||
1170 | if (out_buf) | |
ef79d9a3 | 1171 | raw_collect (regnum, (gdb_byte *) out_buf + offs); |
0b309272 | 1172 | else |
ef79d9a3 YQ |
1173 | out_regcache->raw_supply (regnum, in_buf |
1174 | ? (const gdb_byte *) in_buf + offs | |
1175 | : NULL); | |
0b309272 AA |
1176 | return; |
1177 | } | |
1178 | } | |
1179 | } | |
1180 | ||
1181 | /* Supply register REGNUM from BUF to REGCACHE, using the register map | |
1182 | in REGSET. If REGNUM is -1, do this for all registers in REGSET. | |
1183 | If BUF is NULL, set the register(s) to "unavailable" status. */ | |
1184 | ||
1185 | void | |
1186 | regcache_supply_regset (const struct regset *regset, | |
1187 | struct regcache *regcache, | |
1188 | int regnum, const void *buf, size_t size) | |
1189 | { | |
ef79d9a3 YQ |
1190 | regcache->supply_regset (regset, regnum, buf, size); |
1191 | } | |
1192 | ||
1193 | void | |
1194 | regcache::supply_regset (const struct regset *regset, | |
1195 | int regnum, const void *buf, size_t size) | |
1196 | { | |
1197 | transfer_regset (regset, this, regnum, buf, NULL, size); | |
0b309272 AA |
1198 | } |
1199 | ||
1200 | /* Collect register REGNUM from REGCACHE to BUF, using the register | |
1201 | map in REGSET. If REGNUM is -1, do this for all registers in | |
1202 | REGSET. */ | |
1203 | ||
1204 | void | |
1205 | regcache_collect_regset (const struct regset *regset, | |
1206 | const struct regcache *regcache, | |
1207 | int regnum, void *buf, size_t size) | |
1208 | { | |
ef79d9a3 YQ |
1209 | regcache->collect_regset (regset, regnum, buf, size); |
1210 | } | |
1211 | ||
1212 | void | |
1213 | regcache::collect_regset (const struct regset *regset, | |
1214 | int regnum, void *buf, size_t size) const | |
1215 | { | |
1216 | transfer_regset (regset, NULL, regnum, NULL, buf, size); | |
0b309272 AA |
1217 | } |
1218 | ||
193cb69f | 1219 | |
515630c5 | 1220 | /* Special handling for register PC. */ |
32178cab MS |
1221 | |
1222 | CORE_ADDR | |
515630c5 | 1223 | regcache_read_pc (struct regcache *regcache) |
32178cab | 1224 | { |
ac7936df | 1225 | struct gdbarch *gdbarch = regcache->arch (); |
61a1198a | 1226 | |
32178cab MS |
1227 | CORE_ADDR pc_val; |
1228 | ||
61a1198a UW |
1229 | if (gdbarch_read_pc_p (gdbarch)) |
1230 | pc_val = gdbarch_read_pc (gdbarch, regcache); | |
cde9ea48 | 1231 | /* Else use per-frame method on get_current_frame. */ |
214e098a | 1232 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
cde9ea48 | 1233 | { |
61a1198a | 1234 | ULONGEST raw_val; |
123f5f96 | 1235 | |
05d1431c PA |
1236 | if (regcache_cooked_read_unsigned (regcache, |
1237 | gdbarch_pc_regnum (gdbarch), | |
1238 | &raw_val) == REG_UNAVAILABLE) | |
1239 | throw_error (NOT_AVAILABLE_ERROR, _("PC register is not available")); | |
1240 | ||
214e098a | 1241 | pc_val = gdbarch_addr_bits_remove (gdbarch, raw_val); |
cde9ea48 AC |
1242 | } |
1243 | else | |
515630c5 UW |
1244 | internal_error (__FILE__, __LINE__, |
1245 | _("regcache_read_pc: Unable to find PC")); | |
32178cab MS |
1246 | return pc_val; |
1247 | } | |
1248 | ||
32178cab | 1249 | void |
515630c5 | 1250 | regcache_write_pc (struct regcache *regcache, CORE_ADDR pc) |
32178cab | 1251 | { |
ac7936df | 1252 | struct gdbarch *gdbarch = regcache->arch (); |
61a1198a | 1253 | |
61a1198a UW |
1254 | if (gdbarch_write_pc_p (gdbarch)) |
1255 | gdbarch_write_pc (gdbarch, regcache, pc); | |
214e098a | 1256 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1257 | regcache_cooked_write_unsigned (regcache, |
214e098a | 1258 | gdbarch_pc_regnum (gdbarch), pc); |
61a1198a UW |
1259 | else |
1260 | internal_error (__FILE__, __LINE__, | |
515630c5 | 1261 | _("regcache_write_pc: Unable to update PC")); |
edb3359d DJ |
1262 | |
1263 | /* Writing the PC (for instance, from "load") invalidates the | |
1264 | current frame. */ | |
1265 | reinit_frame_cache (); | |
32178cab MS |
1266 | } |
1267 | ||
d999647b | 1268 | int |
31716595 | 1269 | reg_buffer::num_raw_registers () const |
d999647b YQ |
1270 | { |
1271 | return gdbarch_num_regs (arch ()); | |
1272 | } | |
1273 | ||
ed771251 | 1274 | void |
ef79d9a3 | 1275 | regcache::debug_print_register (const char *func, int regno) |
ed771251 | 1276 | { |
ef79d9a3 | 1277 | struct gdbarch *gdbarch = arch (); |
ed771251 AH |
1278 | |
1279 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1280 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) | |
1281 | && gdbarch_register_name (gdbarch, regno) != NULL | |
1282 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
1283 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
1284 | gdbarch_register_name (gdbarch, regno)); | |
1285 | else | |
1286 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1287 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) | |
1288 | { | |
1289 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1290 | int size = register_size (gdbarch, regno); | |
ef79d9a3 | 1291 | gdb_byte *buf = register_buffer (regno); |
ed771251 AH |
1292 | |
1293 | fprintf_unfiltered (gdb_stdlog, " = "); | |
1294 | for (int i = 0; i < size; i++) | |
1295 | { | |
1296 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1297 | } | |
1298 | if (size <= sizeof (LONGEST)) | |
1299 | { | |
1300 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); | |
1301 | ||
1302 | fprintf_unfiltered (gdb_stdlog, " %s %s", | |
1303 | core_addr_to_string_nz (val), plongest (val)); | |
1304 | } | |
1305 | } | |
1306 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1307 | } | |
32178cab | 1308 | |
705152c5 | 1309 | static void |
0b39b52e | 1310 | reg_flush_command (const char *command, int from_tty) |
705152c5 MS |
1311 | { |
1312 | /* Force-flush the register cache. */ | |
1313 | registers_changed (); | |
1314 | if (from_tty) | |
a3f17187 | 1315 | printf_filtered (_("Register cache flushed.\n")); |
705152c5 MS |
1316 | } |
1317 | ||
ef79d9a3 YQ |
1318 | void |
1319 | regcache::dump (ui_file *file, enum regcache_dump_what what_to_dump) | |
af030b9a | 1320 | { |
ef79d9a3 | 1321 | struct gdbarch *gdbarch = m_descr->gdbarch; |
af030b9a AC |
1322 | int regnum; |
1323 | int footnote_nr = 0; | |
af030b9a AC |
1324 | int footnote_register_offset = 0; |
1325 | int footnote_register_type_name_null = 0; | |
1326 | long register_offset = 0; | |
af030b9a | 1327 | |
ef79d9a3 | 1328 | gdb_assert (m_descr->nr_cooked_registers |
214e098a UW |
1329 | == (gdbarch_num_regs (gdbarch) |
1330 | + gdbarch_num_pseudo_regs (gdbarch))); | |
af030b9a | 1331 | |
ef79d9a3 | 1332 | for (regnum = -1; regnum < m_descr->nr_cooked_registers; regnum++) |
af030b9a AC |
1333 | { |
1334 | /* Name. */ | |
1335 | if (regnum < 0) | |
1336 | fprintf_unfiltered (file, " %-10s", "Name"); | |
1337 | else | |
1338 | { | |
214e098a | 1339 | const char *p = gdbarch_register_name (gdbarch, regnum); |
123f5f96 | 1340 | |
af030b9a AC |
1341 | if (p == NULL) |
1342 | p = ""; | |
1343 | else if (p[0] == '\0') | |
1344 | p = "''"; | |
1345 | fprintf_unfiltered (file, " %-10s", p); | |
1346 | } | |
1347 | ||
1348 | /* Number. */ | |
1349 | if (regnum < 0) | |
1350 | fprintf_unfiltered (file, " %4s", "Nr"); | |
1351 | else | |
1352 | fprintf_unfiltered (file, " %4d", regnum); | |
1353 | ||
1354 | /* Relative number. */ | |
1355 | if (regnum < 0) | |
1356 | fprintf_unfiltered (file, " %4s", "Rel"); | |
214e098a | 1357 | else if (regnum < gdbarch_num_regs (gdbarch)) |
af030b9a AC |
1358 | fprintf_unfiltered (file, " %4d", regnum); |
1359 | else | |
f57d151a | 1360 | fprintf_unfiltered (file, " %4d", |
214e098a | 1361 | (regnum - gdbarch_num_regs (gdbarch))); |
af030b9a AC |
1362 | |
1363 | /* Offset. */ | |
1364 | if (regnum < 0) | |
1365 | fprintf_unfiltered (file, " %6s ", "Offset"); | |
1366 | else | |
1367 | { | |
1368 | fprintf_unfiltered (file, " %6ld", | |
ef79d9a3 YQ |
1369 | m_descr->register_offset[regnum]); |
1370 | if (register_offset != m_descr->register_offset[regnum] | |
d3b22ed5 | 1371 | || (regnum > 0 |
ef79d9a3 YQ |
1372 | && (m_descr->register_offset[regnum] |
1373 | != (m_descr->register_offset[regnum - 1] | |
1374 | + m_descr->sizeof_register[regnum - 1]))) | |
d3b22ed5 | 1375 | ) |
af030b9a AC |
1376 | { |
1377 | if (!footnote_register_offset) | |
1378 | footnote_register_offset = ++footnote_nr; | |
1379 | fprintf_unfiltered (file, "*%d", footnote_register_offset); | |
1380 | } | |
1381 | else | |
1382 | fprintf_unfiltered (file, " "); | |
ef79d9a3 YQ |
1383 | register_offset = (m_descr->register_offset[regnum] |
1384 | + m_descr->sizeof_register[regnum]); | |
af030b9a AC |
1385 | } |
1386 | ||
1387 | /* Size. */ | |
1388 | if (regnum < 0) | |
1389 | fprintf_unfiltered (file, " %5s ", "Size"); | |
1390 | else | |
ef79d9a3 | 1391 | fprintf_unfiltered (file, " %5ld", m_descr->sizeof_register[regnum]); |
af030b9a AC |
1392 | |
1393 | /* Type. */ | |
b59ff9d5 AC |
1394 | { |
1395 | const char *t; | |
6c3e20f1 | 1396 | std::string name_holder; |
123f5f96 | 1397 | |
b59ff9d5 AC |
1398 | if (regnum < 0) |
1399 | t = "Type"; | |
1400 | else | |
1401 | { | |
1402 | static const char blt[] = "builtin_type"; | |
123f5f96 | 1403 | |
ef79d9a3 | 1404 | t = TYPE_NAME (register_type (arch (), regnum)); |
b59ff9d5 AC |
1405 | if (t == NULL) |
1406 | { | |
b59ff9d5 AC |
1407 | if (!footnote_register_type_name_null) |
1408 | footnote_register_type_name_null = ++footnote_nr; | |
6c3e20f1 TT |
1409 | name_holder = string_printf ("*%d", |
1410 | footnote_register_type_name_null); | |
1411 | t = name_holder.c_str (); | |
b59ff9d5 AC |
1412 | } |
1413 | /* Chop a leading builtin_type. */ | |
61012eef | 1414 | if (startswith (t, blt)) |
b59ff9d5 AC |
1415 | t += strlen (blt); |
1416 | } | |
1417 | fprintf_unfiltered (file, " %-15s", t); | |
1418 | } | |
1419 | ||
1420 | /* Leading space always present. */ | |
1421 | fprintf_unfiltered (file, " "); | |
af030b9a AC |
1422 | |
1423 | /* Value, raw. */ | |
1424 | if (what_to_dump == regcache_dump_raw) | |
1425 | { | |
1426 | if (regnum < 0) | |
1427 | fprintf_unfiltered (file, "Raw value"); | |
d999647b | 1428 | else if (regnum >= num_raw_registers ()) |
af030b9a | 1429 | fprintf_unfiltered (file, "<cooked>"); |
ef79d9a3 | 1430 | else if (get_register_status (regnum) == REG_UNKNOWN) |
af030b9a | 1431 | fprintf_unfiltered (file, "<invalid>"); |
ef79d9a3 | 1432 | else if (get_register_status (regnum) == REG_UNAVAILABLE) |
ee99023e | 1433 | fprintf_unfiltered (file, "<unavailable>"); |
af030b9a AC |
1434 | else |
1435 | { | |
50d6adef AH |
1436 | raw_update (regnum); |
1437 | print_hex_chars (file, register_buffer (regnum), | |
ef79d9a3 | 1438 | m_descr->sizeof_register[regnum], |
30a25466 | 1439 | gdbarch_byte_order (gdbarch), true); |
af030b9a AC |
1440 | } |
1441 | } | |
1442 | ||
1443 | /* Value, cooked. */ | |
1444 | if (what_to_dump == regcache_dump_cooked) | |
1445 | { | |
1446 | if (regnum < 0) | |
1447 | fprintf_unfiltered (file, "Cooked value"); | |
1448 | else | |
1449 | { | |
50d6adef | 1450 | const gdb_byte *buf = NULL; |
05d1431c | 1451 | enum register_status status; |
50d6adef AH |
1452 | struct value *value = NULL; |
1453 | ||
d999647b | 1454 | if (regnum < num_raw_registers ()) |
50d6adef AH |
1455 | { |
1456 | raw_update (regnum); | |
1457 | status = get_register_status (regnum); | |
1458 | buf = register_buffer (regnum); | |
1459 | } | |
1460 | else | |
1461 | { | |
1462 | value = cooked_read_value (regnum); | |
1463 | ||
1464 | if (!value_optimized_out (value) | |
1465 | && value_entirely_available (value)) | |
1466 | { | |
1467 | status = REG_VALID; | |
1468 | buf = value_contents_all (value); | |
1469 | } | |
1470 | else | |
1471 | status = REG_UNAVAILABLE; | |
1472 | } | |
05d1431c | 1473 | |
05d1431c PA |
1474 | if (status == REG_UNKNOWN) |
1475 | fprintf_unfiltered (file, "<invalid>"); | |
1476 | else if (status == REG_UNAVAILABLE) | |
1477 | fprintf_unfiltered (file, "<unavailable>"); | |
1478 | else | |
d3eaaf66 | 1479 | print_hex_chars (file, buf, |
ef79d9a3 | 1480 | m_descr->sizeof_register[regnum], |
30a25466 | 1481 | gdbarch_byte_order (gdbarch), true); |
50d6adef AH |
1482 | |
1483 | if (value != NULL) | |
1484 | { | |
1485 | release_value (value); | |
1486 | value_free (value); | |
1487 | } | |
af030b9a AC |
1488 | } |
1489 | } | |
1490 | ||
b59ff9d5 AC |
1491 | /* Group members. */ |
1492 | if (what_to_dump == regcache_dump_groups) | |
1493 | { | |
1494 | if (regnum < 0) | |
1495 | fprintf_unfiltered (file, "Groups"); | |
1496 | else | |
1497 | { | |
b59ff9d5 | 1498 | const char *sep = ""; |
6c7d17ba | 1499 | struct reggroup *group; |
123f5f96 | 1500 | |
6c7d17ba AC |
1501 | for (group = reggroup_next (gdbarch, NULL); |
1502 | group != NULL; | |
1503 | group = reggroup_next (gdbarch, group)) | |
b59ff9d5 | 1504 | { |
6c7d17ba | 1505 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
b59ff9d5 | 1506 | { |
3e43a32a MS |
1507 | fprintf_unfiltered (file, |
1508 | "%s%s", sep, reggroup_name (group)); | |
b59ff9d5 AC |
1509 | sep = ","; |
1510 | } | |
1511 | } | |
1512 | } | |
1513 | } | |
1514 | ||
c21236dc PA |
1515 | /* Remote packet configuration. */ |
1516 | if (what_to_dump == regcache_dump_remote) | |
1517 | { | |
1518 | if (regnum < 0) | |
1519 | { | |
1520 | fprintf_unfiltered (file, "Rmt Nr g/G Offset"); | |
1521 | } | |
d999647b | 1522 | else if (regnum < num_raw_registers ()) |
c21236dc PA |
1523 | { |
1524 | int pnum, poffset; | |
1525 | ||
ef79d9a3 | 1526 | if (remote_register_number_and_offset (arch (), regnum, |
c21236dc PA |
1527 | &pnum, &poffset)) |
1528 | fprintf_unfiltered (file, "%7d %11d", pnum, poffset); | |
1529 | } | |
1530 | } | |
1531 | ||
af030b9a AC |
1532 | fprintf_unfiltered (file, "\n"); |
1533 | } | |
1534 | ||
af030b9a AC |
1535 | if (footnote_register_offset) |
1536 | fprintf_unfiltered (file, "*%d: Inconsistent register offsets.\n", | |
1537 | footnote_register_offset); | |
1538 | if (footnote_register_type_name_null) | |
1539 | fprintf_unfiltered (file, | |
1540 | "*%d: Register type's name NULL.\n", | |
1541 | footnote_register_type_name_null); | |
af030b9a AC |
1542 | } |
1543 | ||
1544 | static void | |
4e001312 | 1545 | regcache_print (const char *args, enum regcache_dump_what what_to_dump) |
af030b9a | 1546 | { |
ed4227b7 PA |
1547 | /* Where to send output. */ |
1548 | stdio_file file; | |
1549 | ui_file *out; | |
1550 | ||
af030b9a | 1551 | if (args == NULL) |
ed4227b7 | 1552 | out = gdb_stdout; |
af030b9a AC |
1553 | else |
1554 | { | |
d7e74731 | 1555 | if (!file.open (args, "w")) |
e2e0b3e5 | 1556 | perror_with_name (_("maintenance print architecture")); |
ed4227b7 PA |
1557 | out = &file; |
1558 | } | |
1559 | ||
1560 | if (target_has_registers) | |
1561 | get_current_regcache ()->dump (out, what_to_dump); | |
1562 | else | |
1563 | { | |
1564 | /* For the benefit of "maint print registers" & co when | |
1565 | debugging an executable, allow dumping a regcache even when | |
1566 | there is no thread selected / no registers. */ | |
f26ae15b | 1567 | regcache dummy_regs (target_gdbarch ()); |
ed4227b7 | 1568 | dummy_regs.dump (out, what_to_dump); |
af030b9a AC |
1569 | } |
1570 | } | |
1571 | ||
1572 | static void | |
4e001312 | 1573 | maintenance_print_registers (const char *args, int from_tty) |
af030b9a AC |
1574 | { |
1575 | regcache_print (args, regcache_dump_none); | |
1576 | } | |
1577 | ||
1578 | static void | |
4e001312 | 1579 | maintenance_print_raw_registers (const char *args, int from_tty) |
af030b9a AC |
1580 | { |
1581 | regcache_print (args, regcache_dump_raw); | |
1582 | } | |
1583 | ||
1584 | static void | |
4e001312 | 1585 | maintenance_print_cooked_registers (const char *args, int from_tty) |
af030b9a AC |
1586 | { |
1587 | regcache_print (args, regcache_dump_cooked); | |
1588 | } | |
1589 | ||
b59ff9d5 | 1590 | static void |
4e001312 | 1591 | maintenance_print_register_groups (const char *args, int from_tty) |
b59ff9d5 AC |
1592 | { |
1593 | regcache_print (args, regcache_dump_groups); | |
1594 | } | |
1595 | ||
c21236dc | 1596 | static void |
4e001312 | 1597 | maintenance_print_remote_registers (const char *args, int from_tty) |
c21236dc PA |
1598 | { |
1599 | regcache_print (args, regcache_dump_remote); | |
1600 | } | |
1601 | ||
8248946c YQ |
1602 | #if GDB_SELF_TEST |
1603 | #include "selftest.h" | |
1b30aaa5 YQ |
1604 | #include "selftest-arch.h" |
1605 | #include "gdbthread.h" | |
ec7a5fcb | 1606 | #include "target-float.h" |
8248946c YQ |
1607 | |
1608 | namespace selftests { | |
1609 | ||
e521e87e | 1610 | class regcache_access : public regcache |
8248946c | 1611 | { |
e521e87e YQ |
1612 | public: |
1613 | ||
1614 | /* Return the number of elements in current_regcache. */ | |
1615 | ||
1616 | static size_t | |
1617 | current_regcache_size () | |
1618 | { | |
1619 | return std::distance (regcache::current_regcache.begin (), | |
1620 | regcache::current_regcache.end ()); | |
1621 | } | |
1622 | }; | |
8248946c YQ |
1623 | |
1624 | static void | |
1625 | current_regcache_test (void) | |
1626 | { | |
1627 | /* It is empty at the start. */ | |
e521e87e | 1628 | SELF_CHECK (regcache_access::current_regcache_size () == 0); |
8248946c YQ |
1629 | |
1630 | ptid_t ptid1 (1), ptid2 (2), ptid3 (3); | |
1631 | ||
1632 | /* Get regcache from ptid1, a new regcache is added to | |
1633 | current_regcache. */ | |
1634 | regcache *regcache = get_thread_arch_aspace_regcache (ptid1, | |
1635 | target_gdbarch (), | |
1636 | NULL); | |
1637 | ||
1638 | SELF_CHECK (regcache != NULL); | |
1639 | SELF_CHECK (regcache->ptid () == ptid1); | |
e521e87e | 1640 | SELF_CHECK (regcache_access::current_regcache_size () == 1); |
8248946c YQ |
1641 | |
1642 | /* Get regcache from ptid2, a new regcache is added to | |
1643 | current_regcache. */ | |
1644 | regcache = get_thread_arch_aspace_regcache (ptid2, | |
1645 | target_gdbarch (), | |
1646 | NULL); | |
1647 | SELF_CHECK (regcache != NULL); | |
1648 | SELF_CHECK (regcache->ptid () == ptid2); | |
e521e87e | 1649 | SELF_CHECK (regcache_access::current_regcache_size () == 2); |
8248946c YQ |
1650 | |
1651 | /* Get regcache from ptid3, a new regcache is added to | |
1652 | current_regcache. */ | |
1653 | regcache = get_thread_arch_aspace_regcache (ptid3, | |
1654 | target_gdbarch (), | |
1655 | NULL); | |
1656 | SELF_CHECK (regcache != NULL); | |
1657 | SELF_CHECK (regcache->ptid () == ptid3); | |
e521e87e | 1658 | SELF_CHECK (regcache_access::current_regcache_size () == 3); |
8248946c YQ |
1659 | |
1660 | /* Get regcache from ptid2 again, nothing is added to | |
1661 | current_regcache. */ | |
1662 | regcache = get_thread_arch_aspace_regcache (ptid2, | |
1663 | target_gdbarch (), | |
1664 | NULL); | |
1665 | SELF_CHECK (regcache != NULL); | |
1666 | SELF_CHECK (regcache->ptid () == ptid2); | |
e521e87e | 1667 | SELF_CHECK (regcache_access::current_regcache_size () == 3); |
8248946c YQ |
1668 | |
1669 | /* Mark ptid2 is changed, so regcache of ptid2 should be removed from | |
1670 | current_regcache. */ | |
1671 | registers_changed_ptid (ptid2); | |
e521e87e | 1672 | SELF_CHECK (regcache_access::current_regcache_size () == 2); |
8248946c YQ |
1673 | } |
1674 | ||
1b30aaa5 YQ |
1675 | static void test_target_fetch_registers (target_ops *self, regcache *regs, |
1676 | int regno); | |
1677 | static void test_target_store_registers (target_ops *self, regcache *regs, | |
1678 | int regno); | |
1679 | static enum target_xfer_status | |
1680 | test_target_xfer_partial (struct target_ops *ops, | |
1681 | enum target_object object, | |
1682 | const char *annex, gdb_byte *readbuf, | |
1683 | const gdb_byte *writebuf, | |
1684 | ULONGEST offset, ULONGEST len, | |
1685 | ULONGEST *xfered_len); | |
1686 | ||
1687 | class target_ops_no_register : public test_target_ops | |
1688 | { | |
1689 | public: | |
1690 | target_ops_no_register () | |
1691 | : test_target_ops {} | |
1692 | { | |
1693 | to_fetch_registers = test_target_fetch_registers; | |
1694 | to_store_registers = test_target_store_registers; | |
1695 | to_xfer_partial = test_target_xfer_partial; | |
1696 | ||
1697 | to_data = this; | |
1698 | } | |
1699 | ||
1700 | void reset () | |
1701 | { | |
1702 | fetch_registers_called = 0; | |
1703 | store_registers_called = 0; | |
1704 | xfer_partial_called = 0; | |
1705 | } | |
1706 | ||
1707 | unsigned int fetch_registers_called = 0; | |
1708 | unsigned int store_registers_called = 0; | |
1709 | unsigned int xfer_partial_called = 0; | |
1710 | }; | |
1711 | ||
1712 | static void | |
1713 | test_target_fetch_registers (target_ops *self, regcache *regs, int regno) | |
1714 | { | |
1715 | auto ops = static_cast<target_ops_no_register *> (self->to_data); | |
1716 | ||
1717 | /* Mark register available. */ | |
1718 | regs->raw_supply_zeroed (regno); | |
1719 | ops->fetch_registers_called++; | |
1720 | } | |
1721 | ||
1722 | static void | |
1723 | test_target_store_registers (target_ops *self, regcache *regs, int regno) | |
1724 | { | |
1725 | auto ops = static_cast<target_ops_no_register *> (self->to_data); | |
1726 | ||
1727 | ops->store_registers_called++; | |
1728 | } | |
1729 | ||
1730 | static enum target_xfer_status | |
1731 | test_target_xfer_partial (struct target_ops *self, enum target_object object, | |
1732 | const char *annex, gdb_byte *readbuf, | |
1733 | const gdb_byte *writebuf, | |
1734 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) | |
1735 | { | |
1736 | auto ops = static_cast<target_ops_no_register *> (self->to_data); | |
1737 | ||
1738 | ops->xfer_partial_called++; | |
1739 | ||
1740 | *xfered_len = len; | |
1741 | return TARGET_XFER_OK; | |
1742 | } | |
1743 | ||
1744 | class readwrite_regcache : public regcache | |
1745 | { | |
1746 | public: | |
1747 | readwrite_regcache (struct gdbarch *gdbarch) | |
1748 | : regcache (gdbarch, nullptr, false) | |
1749 | {} | |
1750 | }; | |
1751 | ||
1752 | /* Test regcache::cooked_read gets registers from raw registers and | |
1753 | memory instead of target to_{fetch,store}_registers. */ | |
1754 | ||
1755 | static void | |
1756 | cooked_read_test (struct gdbarch *gdbarch) | |
1757 | { | |
1758 | /* Error out if debugging something, because we're going to push the | |
1759 | test target, which would pop any existing target. */ | |
1760 | if (current_target.to_stratum >= process_stratum) | |
1761 | error (_("target already pushed")); | |
1762 | ||
1763 | /* Create a mock environment. An inferior with a thread, with a | |
1764 | process_stratum target pushed. */ | |
1765 | ||
1766 | target_ops_no_register mock_target; | |
1767 | ptid_t mock_ptid (1, 1); | |
1768 | inferior mock_inferior (mock_ptid.pid ()); | |
1769 | address_space mock_aspace {}; | |
1770 | mock_inferior.gdbarch = gdbarch; | |
1771 | mock_inferior.aspace = &mock_aspace; | |
1772 | thread_info mock_thread (&mock_inferior, mock_ptid); | |
1773 | ||
1774 | scoped_restore restore_thread_list | |
1775 | = make_scoped_restore (&thread_list, &mock_thread); | |
1776 | ||
1777 | /* Add the mock inferior to the inferior list so that look ups by | |
1778 | target+ptid can find it. */ | |
1779 | scoped_restore restore_inferior_list | |
1780 | = make_scoped_restore (&inferior_list); | |
1781 | inferior_list = &mock_inferior; | |
1782 | ||
1783 | /* Switch to the mock inferior. */ | |
1784 | scoped_restore_current_inferior restore_current_inferior; | |
1785 | set_current_inferior (&mock_inferior); | |
1786 | ||
1787 | /* Push the process_stratum target so we can mock accessing | |
1788 | registers. */ | |
1789 | push_target (&mock_target); | |
1790 | ||
1791 | /* Pop it again on exit (return/exception). */ | |
1792 | struct on_exit | |
1793 | { | |
1794 | ~on_exit () | |
1795 | { | |
1796 | pop_all_targets_at_and_above (process_stratum); | |
1797 | } | |
1798 | } pop_targets; | |
1799 | ||
1800 | /* Switch to the mock thread. */ | |
1801 | scoped_restore restore_inferior_ptid | |
1802 | = make_scoped_restore (&inferior_ptid, mock_ptid); | |
1803 | ||
1804 | /* Test that read one raw register from regcache_no_target will go | |
1805 | to the target layer. */ | |
1806 | int regnum; | |
1807 | ||
1808 | /* Find a raw register which size isn't zero. */ | |
1809 | for (regnum = 0; regnum < gdbarch_num_regs (gdbarch); regnum++) | |
1810 | { | |
1811 | if (register_size (gdbarch, regnum) != 0) | |
1812 | break; | |
1813 | } | |
1814 | ||
1815 | readwrite_regcache readwrite (gdbarch); | |
1816 | gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum)); | |
1817 | ||
1818 | readwrite.raw_read (regnum, buf.data ()); | |
1819 | ||
1820 | /* raw_read calls target_fetch_registers. */ | |
1821 | SELF_CHECK (mock_target.fetch_registers_called > 0); | |
1822 | mock_target.reset (); | |
1823 | ||
1824 | /* Mark all raw registers valid, so the following raw registers | |
1825 | accesses won't go to target. */ | |
1826 | for (auto i = 0; i < gdbarch_num_regs (gdbarch); i++) | |
1827 | readwrite.raw_update (i); | |
1828 | ||
1829 | mock_target.reset (); | |
1830 | /* Then, read all raw and pseudo registers, and don't expect calling | |
1831 | to_{fetch,store}_registers. */ | |
1832 | for (int regnum = 0; | |
1833 | regnum < gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch); | |
1834 | regnum++) | |
1835 | { | |
1836 | if (register_size (gdbarch, regnum) == 0) | |
1837 | continue; | |
1838 | ||
1839 | gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum)); | |
1840 | ||
1841 | SELF_CHECK (REG_VALID == readwrite.cooked_read (regnum, buf.data ())); | |
1842 | ||
dc711524 YQ |
1843 | SELF_CHECK (mock_target.fetch_registers_called == 0); |
1844 | SELF_CHECK (mock_target.store_registers_called == 0); | |
1b30aaa5 YQ |
1845 | |
1846 | /* Some SPU pseudo registers are got via TARGET_OBJECT_SPU. */ | |
1847 | if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu) | |
1848 | SELF_CHECK (mock_target.xfer_partial_called == 0); | |
1849 | ||
1850 | mock_target.reset (); | |
1851 | } | |
a63f2d2f YQ |
1852 | |
1853 | regcache readonly (regcache::readonly, readwrite); | |
1854 | ||
1855 | /* GDB may go to target layer to fetch all registers and memory for | |
1856 | readonly regcache. */ | |
1857 | mock_target.reset (); | |
1858 | ||
1859 | for (int regnum = 0; | |
1860 | regnum < gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch); | |
1861 | regnum++) | |
1862 | { | |
a63f2d2f YQ |
1863 | if (register_size (gdbarch, regnum) == 0) |
1864 | continue; | |
1865 | ||
1866 | gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum)); | |
1867 | enum register_status status = readonly.cooked_read (regnum, | |
1868 | buf.data ()); | |
1869 | ||
1870 | if (regnum < gdbarch_num_regs (gdbarch)) | |
1871 | { | |
1872 | auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
1873 | ||
1874 | if (bfd_arch == bfd_arch_frv || bfd_arch == bfd_arch_h8300 | |
1875 | || bfd_arch == bfd_arch_m32c || bfd_arch == bfd_arch_sh | |
1876 | || bfd_arch == bfd_arch_alpha || bfd_arch == bfd_arch_v850 | |
1877 | || bfd_arch == bfd_arch_msp430 || bfd_arch == bfd_arch_mep | |
1878 | || bfd_arch == bfd_arch_mips || bfd_arch == bfd_arch_v850_rh850 | |
1879 | || bfd_arch == bfd_arch_tic6x || bfd_arch == bfd_arch_mn10300 | |
1880 | || bfd_arch == bfd_arch_rl78 || bfd_arch == bfd_arch_score) | |
1881 | { | |
1882 | /* Raw registers. If raw registers are not in save_reggroup, | |
1883 | their status are unknown. */ | |
1884 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
1885 | SELF_CHECK (status == REG_VALID); | |
1886 | else | |
1887 | SELF_CHECK (status == REG_UNKNOWN); | |
1888 | } | |
1889 | else | |
1890 | SELF_CHECK (status == REG_VALID); | |
1891 | } | |
1892 | else | |
1893 | { | |
1894 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
1895 | SELF_CHECK (status == REG_VALID); | |
1896 | else | |
1897 | { | |
1898 | /* If pseudo registers are not in save_reggroup, some of | |
1899 | them can be computed from saved raw registers, but some | |
1900 | of them are unknown. */ | |
1901 | auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
1902 | ||
1903 | if (bfd_arch == bfd_arch_frv | |
1904 | || bfd_arch == bfd_arch_m32c | |
1905 | || bfd_arch == bfd_arch_mep | |
1906 | || bfd_arch == bfd_arch_sh) | |
1907 | SELF_CHECK (status == REG_VALID || status == REG_UNKNOWN); | |
1908 | else if (bfd_arch == bfd_arch_mips | |
1909 | || bfd_arch == bfd_arch_h8300) | |
1910 | SELF_CHECK (status == REG_UNKNOWN); | |
1911 | else | |
1912 | SELF_CHECK (status == REG_VALID); | |
1913 | } | |
1914 | } | |
1915 | ||
1916 | SELF_CHECK (mock_target.fetch_registers_called == 0); | |
1917 | SELF_CHECK (mock_target.store_registers_called == 0); | |
1918 | SELF_CHECK (mock_target.xfer_partial_called == 0); | |
1919 | ||
1920 | mock_target.reset (); | |
1921 | } | |
1b30aaa5 YQ |
1922 | } |
1923 | ||
ec7a5fcb YQ |
1924 | /* Test regcache::cooked_write by writing some expected contents to |
1925 | registers, and checking that contents read from registers and the | |
1926 | expected contents are the same. */ | |
1927 | ||
1928 | static void | |
1929 | cooked_write_test (struct gdbarch *gdbarch) | |
1930 | { | |
1931 | /* Error out if debugging something, because we're going to push the | |
1932 | test target, which would pop any existing target. */ | |
1933 | if (current_target.to_stratum >= process_stratum) | |
1934 | error (_("target already pushed")); | |
1935 | ||
1936 | /* Create a mock environment. A process_stratum target pushed. */ | |
1937 | ||
1938 | target_ops_no_register mock_target; | |
1939 | ||
1940 | /* Push the process_stratum target so we can mock accessing | |
1941 | registers. */ | |
1942 | push_target (&mock_target); | |
1943 | ||
1944 | /* Pop it again on exit (return/exception). */ | |
1945 | struct on_exit | |
1946 | { | |
1947 | ~on_exit () | |
1948 | { | |
1949 | pop_all_targets_at_and_above (process_stratum); | |
1950 | } | |
1951 | } pop_targets; | |
1952 | ||
1953 | readwrite_regcache readwrite (gdbarch); | |
1954 | ||
1955 | const int num_regs = (gdbarch_num_regs (gdbarch) | |
1956 | + gdbarch_num_pseudo_regs (gdbarch)); | |
1957 | ||
1958 | for (auto regnum = 0; regnum < num_regs; regnum++) | |
1959 | { | |
1960 | if (register_size (gdbarch, regnum) == 0 | |
1961 | || gdbarch_cannot_store_register (gdbarch, regnum)) | |
1962 | continue; | |
1963 | ||
1964 | auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
1965 | ||
1966 | if ((bfd_arch == bfd_arch_sparc | |
1967 | /* SPARC64_CWP_REGNUM, SPARC64_PSTATE_REGNUM, | |
1968 | SPARC64_ASI_REGNUM and SPARC64_CCR_REGNUM are hard to test. */ | |
1969 | && gdbarch_ptr_bit (gdbarch) == 64 | |
1970 | && (regnum >= gdbarch_num_regs (gdbarch) | |
1971 | && regnum <= gdbarch_num_regs (gdbarch) + 4)) | |
1972 | || (bfd_arch == bfd_arch_sh | |
1973 | /* FPSCR_C_REGNUM in sh64 is hard to test. */ | |
1974 | && gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_sh5 | |
1975 | && regnum == 243) | |
1976 | || (bfd_arch == bfd_arch_spu | |
1977 | /* SPU pseudo registers except SPU_SP_REGNUM are got by | |
1978 | TARGET_OBJECT_SPU. */ | |
1979 | && regnum >= gdbarch_num_regs (gdbarch) && regnum != 130)) | |
1980 | continue; | |
1981 | ||
1982 | std::vector<gdb_byte> expected (register_size (gdbarch, regnum), 0); | |
1983 | std::vector<gdb_byte> buf (register_size (gdbarch, regnum), 0); | |
1984 | const auto type = register_type (gdbarch, regnum); | |
1985 | ||
1986 | if (TYPE_CODE (type) == TYPE_CODE_FLT | |
1987 | || TYPE_CODE (type) == TYPE_CODE_DECFLOAT) | |
1988 | { | |
1989 | /* Generate valid float format. */ | |
1990 | target_float_from_string (expected.data (), type, "1.25"); | |
1991 | } | |
1992 | else if (TYPE_CODE (type) == TYPE_CODE_INT | |
1993 | || TYPE_CODE (type) == TYPE_CODE_ARRAY | |
1994 | || TYPE_CODE (type) == TYPE_CODE_PTR | |
1995 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
1996 | || TYPE_CODE (type) == TYPE_CODE_STRUCT) | |
1997 | { | |
1998 | if (bfd_arch == bfd_arch_ia64 | |
1999 | || (regnum >= gdbarch_num_regs (gdbarch) | |
2000 | && (bfd_arch == bfd_arch_xtensa | |
2001 | || bfd_arch == bfd_arch_bfin | |
2002 | || bfd_arch == bfd_arch_m32c | |
2003 | /* m68hc11 pseudo registers are in memory. */ | |
2004 | || bfd_arch == bfd_arch_m68hc11 | |
2005 | || bfd_arch == bfd_arch_m68hc12 | |
2006 | || bfd_arch == bfd_arch_s390)) | |
2007 | || (bfd_arch == bfd_arch_frv | |
2008 | /* FRV pseudo registers except iacc0. */ | |
2009 | && regnum > gdbarch_num_regs (gdbarch))) | |
2010 | { | |
2011 | /* Skip setting the expected values for some architecture | |
2012 | registers. */ | |
2013 | } | |
2014 | else if (bfd_arch == bfd_arch_rl78 && regnum == 40) | |
2015 | { | |
2016 | /* RL78_PC_REGNUM */ | |
2017 | for (auto j = 0; j < register_size (gdbarch, regnum) - 1; j++) | |
2018 | expected[j] = j; | |
2019 | } | |
2020 | else | |
2021 | { | |
2022 | for (auto j = 0; j < register_size (gdbarch, regnum); j++) | |
2023 | expected[j] = j; | |
2024 | } | |
2025 | } | |
2026 | else if (TYPE_CODE (type) == TYPE_CODE_FLAGS) | |
2027 | { | |
2028 | /* No idea how to test flags. */ | |
2029 | continue; | |
2030 | } | |
2031 | else | |
2032 | { | |
2033 | /* If we don't know how to create the expected value for the | |
2034 | this type, make it fail. */ | |
2035 | SELF_CHECK (0); | |
2036 | } | |
2037 | ||
2038 | readwrite.cooked_write (regnum, expected.data ()); | |
2039 | ||
2040 | SELF_CHECK (readwrite.cooked_read (regnum, buf.data ()) == REG_VALID); | |
2041 | SELF_CHECK (expected == buf); | |
2042 | } | |
2043 | } | |
2044 | ||
8248946c YQ |
2045 | } // namespace selftests |
2046 | #endif /* GDB_SELF_TEST */ | |
2047 | ||
32178cab MS |
2048 | void |
2049 | _initialize_regcache (void) | |
2050 | { | |
3e43a32a MS |
2051 | regcache_descr_handle |
2052 | = gdbarch_data_register_post_init (init_regcache_descr); | |
705152c5 | 2053 | |
f4c5303c | 2054 | observer_attach_target_changed (regcache_observer_target_changed); |
e521e87e | 2055 | observer_attach_thread_ptid_changed (regcache::regcache_thread_ptid_changed); |
f4c5303c | 2056 | |
705152c5 | 2057 | add_com ("flushregs", class_maintenance, reg_flush_command, |
1bedd215 | 2058 | _("Force gdb to flush its register cache (maintainer command)")); |
39f77062 | 2059 | |
3e43a32a MS |
2060 | add_cmd ("registers", class_maintenance, maintenance_print_registers, |
2061 | _("Print the internal register configuration.\n" | |
2062 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 2063 | add_cmd ("raw-registers", class_maintenance, |
3e43a32a MS |
2064 | maintenance_print_raw_registers, |
2065 | _("Print the internal register configuration " | |
2066 | "including raw values.\n" | |
2067 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 2068 | add_cmd ("cooked-registers", class_maintenance, |
3e43a32a MS |
2069 | maintenance_print_cooked_registers, |
2070 | _("Print the internal register configuration " | |
2071 | "including cooked values.\n" | |
2072 | "Takes an optional file parameter."), &maintenanceprintlist); | |
b59ff9d5 | 2073 | add_cmd ("register-groups", class_maintenance, |
3e43a32a MS |
2074 | maintenance_print_register_groups, |
2075 | _("Print the internal register configuration " | |
2076 | "including each register's group.\n" | |
2077 | "Takes an optional file parameter."), | |
af030b9a | 2078 | &maintenanceprintlist); |
c21236dc PA |
2079 | add_cmd ("remote-registers", class_maintenance, |
2080 | maintenance_print_remote_registers, _("\ | |
2081 | Print the internal register configuration including each register's\n\ | |
2082 | remote register number and buffer offset in the g/G packets.\n\ | |
2083 | Takes an optional file parameter."), | |
2084 | &maintenanceprintlist); | |
1526853e | 2085 | |
8248946c | 2086 | #if GDB_SELF_TEST |
1526853e | 2087 | selftests::register_test ("current_regcache", selftests::current_regcache_test); |
1b30aaa5 YQ |
2088 | |
2089 | selftests::register_test_foreach_arch ("regcache::cooked_read_test", | |
2090 | selftests::cooked_read_test); | |
ec7a5fcb YQ |
2091 | selftests::register_test_foreach_arch ("regcache::cooked_write_test", |
2092 | selftests::cooked_write_test); | |
8248946c | 2093 | #endif |
32178cab | 2094 | } |