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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). */ | |
849d0ba8 | 208 | : readable_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 | |
356 | regcache::get_register_status (int regnum) const | |
357 | { | |
6ed7ea50 | 358 | gdb_assert (regnum >= 0); |
ef79d9a3 YQ |
359 | if (m_readonly_p) |
360 | gdb_assert (regnum < m_descr->nr_cooked_registers); | |
6ed7ea50 | 361 | else |
d999647b | 362 | gdb_assert (regnum < num_raw_registers ()); |
6ed7ea50 | 363 | |
ef79d9a3 | 364 | return (enum register_status) m_register_status[regnum]; |
3fadccb3 AC |
365 | } |
366 | ||
9c5ea4d9 UW |
367 | void |
368 | regcache_invalidate (struct regcache *regcache, int regnum) | |
369 | { | |
370 | gdb_assert (regcache != NULL); | |
ef79d9a3 | 371 | regcache->invalidate (regnum); |
9c5ea4d9 UW |
372 | } |
373 | ||
ef79d9a3 YQ |
374 | void |
375 | regcache::invalidate (int regnum) | |
376 | { | |
ef79d9a3 | 377 | gdb_assert (!m_readonly_p); |
4e888c28 | 378 | assert_regnum (regnum); |
ef79d9a3 YQ |
379 | m_register_status[regnum] = REG_UNKNOWN; |
380 | } | |
9c5ea4d9 | 381 | |
4e888c28 | 382 | void |
31716595 | 383 | reg_buffer::assert_regnum (int regnum) const |
4e888c28 | 384 | { |
31716595 YQ |
385 | gdb_assert (regnum >= 0); |
386 | if (m_has_pseudo) | |
387 | gdb_assert (regnum < m_descr->nr_cooked_registers); | |
388 | else | |
389 | gdb_assert (regnum < gdbarch_num_regs (arch ())); | |
4e888c28 YQ |
390 | } |
391 | ||
3fadccb3 | 392 | /* Global structure containing the current regcache. */ |
3fadccb3 | 393 | |
5ebd2499 | 394 | /* NOTE: this is a write-through cache. There is no "dirty" bit for |
32178cab MS |
395 | recording if the register values have been changed (eg. by the |
396 | user). Therefore all registers must be written back to the | |
397 | target when appropriate. */ | |
e521e87e | 398 | std::forward_list<regcache *> regcache::current_regcache; |
c2250ad1 UW |
399 | |
400 | struct regcache * | |
e2d96639 YQ |
401 | get_thread_arch_aspace_regcache (ptid_t ptid, struct gdbarch *gdbarch, |
402 | struct address_space *aspace) | |
c2250ad1 | 403 | { |
e521e87e | 404 | for (const auto ®cache : regcache::current_regcache) |
94bb8dfe YQ |
405 | if (ptid_equal (regcache->ptid (), ptid) && regcache->arch () == gdbarch) |
406 | return regcache; | |
594f7785 | 407 | |
94bb8dfe | 408 | regcache *new_regcache = new regcache (gdbarch, aspace, false); |
594f7785 | 409 | |
e521e87e | 410 | regcache::current_regcache.push_front (new_regcache); |
ef79d9a3 | 411 | new_regcache->set_ptid (ptid); |
e2d96639 | 412 | |
e2d96639 YQ |
413 | return new_regcache; |
414 | } | |
415 | ||
416 | struct regcache * | |
417 | get_thread_arch_regcache (ptid_t ptid, struct gdbarch *gdbarch) | |
418 | { | |
ed4227b7 | 419 | address_space *aspace = target_thread_address_space (ptid); |
b78974c3 | 420 | |
e2d96639 | 421 | return get_thread_arch_aspace_regcache (ptid, gdbarch, aspace); |
594f7785 UW |
422 | } |
423 | ||
c2250ad1 UW |
424 | static ptid_t current_thread_ptid; |
425 | static struct gdbarch *current_thread_arch; | |
426 | ||
427 | struct regcache * | |
428 | get_thread_regcache (ptid_t ptid) | |
429 | { | |
430 | if (!current_thread_arch || !ptid_equal (current_thread_ptid, ptid)) | |
431 | { | |
432 | current_thread_ptid = ptid; | |
433 | current_thread_arch = target_thread_architecture (ptid); | |
434 | } | |
435 | ||
436 | return get_thread_arch_regcache (ptid, current_thread_arch); | |
437 | } | |
438 | ||
439 | struct regcache * | |
440 | get_current_regcache (void) | |
594f7785 UW |
441 | { |
442 | return get_thread_regcache (inferior_ptid); | |
443 | } | |
32178cab | 444 | |
361c8ade GB |
445 | /* See common/common-regcache.h. */ |
446 | ||
447 | struct regcache * | |
448 | get_thread_regcache_for_ptid (ptid_t ptid) | |
449 | { | |
450 | return get_thread_regcache (ptid); | |
451 | } | |
32178cab | 452 | |
f4c5303c OF |
453 | /* Observer for the target_changed event. */ |
454 | ||
2c0b251b | 455 | static void |
f4c5303c OF |
456 | regcache_observer_target_changed (struct target_ops *target) |
457 | { | |
458 | registers_changed (); | |
459 | } | |
460 | ||
5231c1fd PA |
461 | /* Update global variables old ptids to hold NEW_PTID if they were |
462 | holding OLD_PTID. */ | |
e521e87e YQ |
463 | void |
464 | regcache::regcache_thread_ptid_changed (ptid_t old_ptid, ptid_t new_ptid) | |
5231c1fd | 465 | { |
e521e87e | 466 | for (auto ®cache : regcache::current_regcache) |
94bb8dfe YQ |
467 | { |
468 | if (ptid_equal (regcache->ptid (), old_ptid)) | |
469 | regcache->set_ptid (new_ptid); | |
470 | } | |
5231c1fd PA |
471 | } |
472 | ||
32178cab MS |
473 | /* Low level examining and depositing of registers. |
474 | ||
475 | The caller is responsible for making sure that the inferior is | |
476 | stopped before calling the fetching routines, or it will get | |
477 | garbage. (a change from GDB version 3, in which the caller got the | |
478 | value from the last stop). */ | |
479 | ||
480 | /* REGISTERS_CHANGED () | |
481 | ||
482 | Indicate that registers may have changed, so invalidate the cache. */ | |
483 | ||
484 | void | |
e66408ed | 485 | registers_changed_ptid (ptid_t ptid) |
32178cab | 486 | { |
e521e87e | 487 | for (auto oit = regcache::current_regcache.before_begin (), |
94bb8dfe | 488 | it = std::next (oit); |
e521e87e | 489 | it != regcache::current_regcache.end (); |
94bb8dfe | 490 | ) |
c2250ad1 | 491 | { |
94bb8dfe | 492 | if (ptid_match ((*it)->ptid (), ptid)) |
e66408ed | 493 | { |
94bb8dfe | 494 | delete *it; |
e521e87e | 495 | it = regcache::current_regcache.erase_after (oit); |
e66408ed | 496 | } |
94bb8dfe YQ |
497 | else |
498 | oit = it++; | |
c2250ad1 | 499 | } |
32178cab | 500 | |
c34fd852 | 501 | if (ptid_match (current_thread_ptid, ptid)) |
041274d8 PA |
502 | { |
503 | current_thread_ptid = null_ptid; | |
504 | current_thread_arch = NULL; | |
505 | } | |
32178cab | 506 | |
c34fd852 | 507 | if (ptid_match (inferior_ptid, ptid)) |
041274d8 PA |
508 | { |
509 | /* We just deleted the regcache of the current thread. Need to | |
510 | forget about any frames we have cached, too. */ | |
511 | reinit_frame_cache (); | |
512 | } | |
513 | } | |
c2250ad1 | 514 | |
041274d8 PA |
515 | void |
516 | registers_changed (void) | |
517 | { | |
518 | registers_changed_ptid (minus_one_ptid); | |
a5d9d57d | 519 | |
32178cab MS |
520 | /* Force cleanup of any alloca areas if using C alloca instead of |
521 | a builtin alloca. This particular call is used to clean up | |
522 | areas allocated by low level target code which may build up | |
523 | during lengthy interactions between gdb and the target before | |
524 | gdb gives control to the user (ie watchpoints). */ | |
525 | alloca (0); | |
32178cab MS |
526 | } |
527 | ||
8e368124 AH |
528 | void |
529 | regcache_raw_update (struct regcache *regcache, int regnum) | |
61a0eb5b | 530 | { |
8e368124 | 531 | gdb_assert (regcache != NULL); |
ef79d9a3 YQ |
532 | |
533 | regcache->raw_update (regnum); | |
534 | } | |
535 | ||
536 | void | |
537 | regcache::raw_update (int regnum) | |
538 | { | |
4e888c28 | 539 | assert_regnum (regnum); |
8e368124 | 540 | |
3fadccb3 AC |
541 | /* Make certain that the register cache is up-to-date with respect |
542 | to the current thread. This switching shouldn't be necessary | |
543 | only there is still only one target side register cache. Sigh! | |
544 | On the bright side, at least there is a regcache object. */ | |
8e368124 | 545 | |
ef79d9a3 | 546 | if (!m_readonly_p && get_register_status (regnum) == REG_UNKNOWN) |
3fadccb3 | 547 | { |
ef79d9a3 | 548 | target_fetch_registers (this, regnum); |
788c8b10 PA |
549 | |
550 | /* A number of targets can't access the whole set of raw | |
551 | registers (because the debug API provides no means to get at | |
552 | them). */ | |
ef79d9a3 YQ |
553 | if (m_register_status[regnum] == REG_UNKNOWN) |
554 | m_register_status[regnum] = REG_UNAVAILABLE; | |
3fadccb3 | 555 | } |
8e368124 AH |
556 | } |
557 | ||
558 | enum register_status | |
559 | regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf) | |
ef79d9a3 YQ |
560 | { |
561 | return regcache->raw_read (regnum, buf); | |
562 | } | |
563 | ||
564 | enum register_status | |
849d0ba8 | 565 | readable_regcache::raw_read (int regnum, gdb_byte *buf) |
8e368124 AH |
566 | { |
567 | gdb_assert (buf != NULL); | |
ef79d9a3 | 568 | raw_update (regnum); |
05d1431c | 569 | |
ef79d9a3 YQ |
570 | if (m_register_status[regnum] != REG_VALID) |
571 | memset (buf, 0, m_descr->sizeof_register[regnum]); | |
05d1431c | 572 | else |
ef79d9a3 YQ |
573 | memcpy (buf, register_buffer (regnum), |
574 | m_descr->sizeof_register[regnum]); | |
05d1431c | 575 | |
ef79d9a3 | 576 | return (enum register_status) m_register_status[regnum]; |
61a0eb5b AC |
577 | } |
578 | ||
05d1431c | 579 | enum register_status |
28fc6740 | 580 | regcache_raw_read_signed (struct regcache *regcache, int regnum, LONGEST *val) |
ef79d9a3 YQ |
581 | { |
582 | gdb_assert (regcache != NULL); | |
6f98355c | 583 | return regcache->raw_read (regnum, val); |
ef79d9a3 YQ |
584 | } |
585 | ||
6f98355c | 586 | template<typename T, typename> |
ef79d9a3 | 587 | enum register_status |
849d0ba8 | 588 | readable_regcache::raw_read (int regnum, T *val) |
28fc6740 | 589 | { |
2d522557 | 590 | gdb_byte *buf; |
05d1431c | 591 | enum register_status status; |
123f5f96 | 592 | |
4e888c28 | 593 | assert_regnum (regnum); |
ef79d9a3 YQ |
594 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); |
595 | status = raw_read (regnum, buf); | |
05d1431c | 596 | if (status == REG_VALID) |
6f98355c YQ |
597 | *val = extract_integer<T> (buf, |
598 | m_descr->sizeof_register[regnum], | |
599 | gdbarch_byte_order (m_descr->gdbarch)); | |
05d1431c PA |
600 | else |
601 | *val = 0; | |
602 | return status; | |
28fc6740 AC |
603 | } |
604 | ||
05d1431c | 605 | enum register_status |
28fc6740 AC |
606 | regcache_raw_read_unsigned (struct regcache *regcache, int regnum, |
607 | ULONGEST *val) | |
ef79d9a3 YQ |
608 | { |
609 | gdb_assert (regcache != NULL); | |
6f98355c | 610 | return regcache->raw_read (regnum, val); |
28fc6740 AC |
611 | } |
612 | ||
c00dcbe9 MK |
613 | void |
614 | regcache_raw_write_signed (struct regcache *regcache, int regnum, LONGEST val) | |
ef79d9a3 YQ |
615 | { |
616 | gdb_assert (regcache != NULL); | |
6f98355c | 617 | regcache->raw_write (regnum, val); |
ef79d9a3 YQ |
618 | } |
619 | ||
6f98355c | 620 | template<typename T, typename> |
ef79d9a3 | 621 | void |
6f98355c | 622 | regcache::raw_write (int regnum, T val) |
c00dcbe9 | 623 | { |
7c543f7b | 624 | gdb_byte *buf; |
123f5f96 | 625 | |
4e888c28 | 626 | assert_regnum (regnum); |
ef79d9a3 | 627 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); |
6f98355c YQ |
628 | store_integer (buf, m_descr->sizeof_register[regnum], |
629 | gdbarch_byte_order (m_descr->gdbarch), val); | |
ef79d9a3 | 630 | raw_write (regnum, buf); |
c00dcbe9 MK |
631 | } |
632 | ||
633 | void | |
634 | regcache_raw_write_unsigned (struct regcache *regcache, int regnum, | |
635 | ULONGEST val) | |
ef79d9a3 YQ |
636 | { |
637 | gdb_assert (regcache != NULL); | |
6f98355c | 638 | regcache->raw_write (regnum, val); |
c00dcbe9 MK |
639 | } |
640 | ||
9fd15b2e YQ |
641 | LONGEST |
642 | regcache_raw_get_signed (struct regcache *regcache, int regnum) | |
643 | { | |
644 | LONGEST value; | |
645 | enum register_status status; | |
646 | ||
647 | status = regcache_raw_read_signed (regcache, regnum, &value); | |
648 | if (status == REG_UNAVAILABLE) | |
649 | throw_error (NOT_AVAILABLE_ERROR, | |
650 | _("Register %d is not available"), regnum); | |
651 | return value; | |
652 | } | |
653 | ||
05d1431c | 654 | enum register_status |
2d522557 | 655 | regcache_cooked_read (struct regcache *regcache, int regnum, gdb_byte *buf) |
ef79d9a3 YQ |
656 | { |
657 | return regcache->cooked_read (regnum, buf); | |
658 | } | |
659 | ||
660 | enum register_status | |
849d0ba8 | 661 | readable_regcache::cooked_read (int regnum, gdb_byte *buf) |
68365089 | 662 | { |
d138e37a | 663 | gdb_assert (regnum >= 0); |
ef79d9a3 | 664 | gdb_assert (regnum < m_descr->nr_cooked_registers); |
d999647b | 665 | if (regnum < num_raw_registers ()) |
ef79d9a3 | 666 | return raw_read (regnum, buf); |
849d0ba8 | 667 | else if (m_has_pseudo |
ef79d9a3 | 668 | && m_register_status[regnum] != REG_UNKNOWN) |
05d1431c | 669 | { |
ef79d9a3 YQ |
670 | if (m_register_status[regnum] == REG_VALID) |
671 | memcpy (buf, register_buffer (regnum), | |
672 | m_descr->sizeof_register[regnum]); | |
05d1431c | 673 | else |
ef79d9a3 | 674 | memset (buf, 0, m_descr->sizeof_register[regnum]); |
05d1431c | 675 | |
ef79d9a3 | 676 | return (enum register_status) m_register_status[regnum]; |
05d1431c | 677 | } |
ef79d9a3 | 678 | else if (gdbarch_pseudo_register_read_value_p (m_descr->gdbarch)) |
3543a589 TT |
679 | { |
680 | struct value *mark, *computed; | |
681 | enum register_status result = REG_VALID; | |
682 | ||
683 | mark = value_mark (); | |
684 | ||
ef79d9a3 YQ |
685 | computed = gdbarch_pseudo_register_read_value (m_descr->gdbarch, |
686 | this, regnum); | |
3543a589 TT |
687 | if (value_entirely_available (computed)) |
688 | memcpy (buf, value_contents_raw (computed), | |
ef79d9a3 | 689 | m_descr->sizeof_register[regnum]); |
3543a589 TT |
690 | else |
691 | { | |
ef79d9a3 | 692 | memset (buf, 0, m_descr->sizeof_register[regnum]); |
3543a589 TT |
693 | result = REG_UNAVAILABLE; |
694 | } | |
695 | ||
696 | value_free_to_mark (mark); | |
697 | ||
698 | return result; | |
699 | } | |
d138e37a | 700 | else |
ef79d9a3 | 701 | return gdbarch_pseudo_register_read (m_descr->gdbarch, this, |
05d1431c | 702 | regnum, buf); |
61a0eb5b AC |
703 | } |
704 | ||
3543a589 TT |
705 | struct value * |
706 | regcache_cooked_read_value (struct regcache *regcache, int regnum) | |
ef79d9a3 YQ |
707 | { |
708 | return regcache->cooked_read_value (regnum); | |
709 | } | |
710 | ||
711 | struct value * | |
849d0ba8 | 712 | readable_regcache::cooked_read_value (int regnum) |
3543a589 TT |
713 | { |
714 | gdb_assert (regnum >= 0); | |
ef79d9a3 | 715 | gdb_assert (regnum < m_descr->nr_cooked_registers); |
3543a589 | 716 | |
d999647b | 717 | if (regnum < num_raw_registers () |
849d0ba8 | 718 | || (m_has_pseudo && m_register_status[regnum] != REG_UNKNOWN) |
ef79d9a3 | 719 | || !gdbarch_pseudo_register_read_value_p (m_descr->gdbarch)) |
3543a589 TT |
720 | { |
721 | struct value *result; | |
722 | ||
ef79d9a3 | 723 | result = allocate_value (register_type (m_descr->gdbarch, regnum)); |
3543a589 TT |
724 | VALUE_LVAL (result) = lval_register; |
725 | VALUE_REGNUM (result) = regnum; | |
726 | ||
727 | /* It is more efficient in general to do this delegation in this | |
728 | direction than in the other one, even though the value-based | |
729 | API is preferred. */ | |
ef79d9a3 YQ |
730 | if (cooked_read (regnum, |
731 | value_contents_raw (result)) == REG_UNAVAILABLE) | |
3543a589 TT |
732 | mark_value_bytes_unavailable (result, 0, |
733 | TYPE_LENGTH (value_type (result))); | |
734 | ||
735 | return result; | |
736 | } | |
737 | else | |
ef79d9a3 YQ |
738 | return gdbarch_pseudo_register_read_value (m_descr->gdbarch, |
739 | this, regnum); | |
3543a589 TT |
740 | } |
741 | ||
05d1431c | 742 | enum register_status |
a378f419 AC |
743 | regcache_cooked_read_signed (struct regcache *regcache, int regnum, |
744 | LONGEST *val) | |
ef79d9a3 YQ |
745 | { |
746 | gdb_assert (regcache != NULL); | |
6f98355c | 747 | return regcache->cooked_read (regnum, val); |
ef79d9a3 YQ |
748 | } |
749 | ||
6f98355c | 750 | template<typename T, typename> |
ef79d9a3 | 751 | enum register_status |
849d0ba8 | 752 | readable_regcache::cooked_read (int regnum, T *val) |
a378f419 | 753 | { |
05d1431c | 754 | enum register_status status; |
2d522557 | 755 | gdb_byte *buf; |
123f5f96 | 756 | |
ef79d9a3 YQ |
757 | gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers); |
758 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); | |
759 | status = cooked_read (regnum, buf); | |
05d1431c | 760 | if (status == REG_VALID) |
6f98355c YQ |
761 | *val = extract_integer<T> (buf, m_descr->sizeof_register[regnum], |
762 | gdbarch_byte_order (m_descr->gdbarch)); | |
05d1431c PA |
763 | else |
764 | *val = 0; | |
765 | return status; | |
a378f419 AC |
766 | } |
767 | ||
05d1431c | 768 | enum register_status |
a378f419 AC |
769 | regcache_cooked_read_unsigned (struct regcache *regcache, int regnum, |
770 | ULONGEST *val) | |
ef79d9a3 YQ |
771 | { |
772 | gdb_assert (regcache != NULL); | |
6f98355c | 773 | return regcache->cooked_read (regnum, val); |
a378f419 AC |
774 | } |
775 | ||
a66a9c23 AC |
776 | void |
777 | regcache_cooked_write_signed (struct regcache *regcache, int regnum, | |
778 | LONGEST val) | |
ef79d9a3 YQ |
779 | { |
780 | gdb_assert (regcache != NULL); | |
6f98355c | 781 | regcache->cooked_write (regnum, val); |
ef79d9a3 YQ |
782 | } |
783 | ||
6f98355c | 784 | template<typename T, typename> |
ef79d9a3 | 785 | void |
6f98355c | 786 | regcache::cooked_write (int regnum, T val) |
a66a9c23 | 787 | { |
7c543f7b | 788 | gdb_byte *buf; |
123f5f96 | 789 | |
ef79d9a3 YQ |
790 | gdb_assert (regnum >=0 && regnum < m_descr->nr_cooked_registers); |
791 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); | |
6f98355c YQ |
792 | store_integer (buf, m_descr->sizeof_register[regnum], |
793 | gdbarch_byte_order (m_descr->gdbarch), val); | |
ef79d9a3 | 794 | cooked_write (regnum, buf); |
a66a9c23 AC |
795 | } |
796 | ||
797 | void | |
798 | regcache_cooked_write_unsigned (struct regcache *regcache, int regnum, | |
799 | ULONGEST val) | |
ef79d9a3 YQ |
800 | { |
801 | gdb_assert (regcache != NULL); | |
6f98355c | 802 | regcache->cooked_write (regnum, val); |
a66a9c23 AC |
803 | } |
804 | ||
20aa2c60 PA |
805 | /* See regcache.h. */ |
806 | ||
807 | void | |
808 | regcache_raw_set_cached_value (struct regcache *regcache, int regnum, | |
809 | const gdb_byte *buf) | |
810 | { | |
ef79d9a3 YQ |
811 | regcache->raw_set_cached_value (regnum, buf); |
812 | } | |
813 | ||
814 | void | |
815 | regcache::raw_set_cached_value (int regnum, const gdb_byte *buf) | |
816 | { | |
817 | memcpy (register_buffer (regnum), buf, | |
818 | m_descr->sizeof_register[regnum]); | |
819 | m_register_status[regnum] = REG_VALID; | |
20aa2c60 PA |
820 | } |
821 | ||
61a0eb5b | 822 | void |
2d522557 AC |
823 | regcache_raw_write (struct regcache *regcache, int regnum, |
824 | const gdb_byte *buf) | |
ef79d9a3 YQ |
825 | { |
826 | gdb_assert (regcache != NULL && buf != NULL); | |
827 | regcache->raw_write (regnum, buf); | |
828 | } | |
829 | ||
830 | void | |
831 | regcache::raw_write (int regnum, const gdb_byte *buf) | |
61a0eb5b | 832 | { |
594f7785 | 833 | |
ef79d9a3 | 834 | gdb_assert (buf != NULL); |
4e888c28 | 835 | assert_regnum (regnum); |
ef79d9a3 | 836 | gdb_assert (!m_readonly_p); |
3fadccb3 | 837 | |
3fadccb3 AC |
838 | /* On the sparc, writing %g0 is a no-op, so we don't even want to |
839 | change the registers array if something writes to this register. */ | |
ef79d9a3 | 840 | if (gdbarch_cannot_store_register (arch (), regnum)) |
3fadccb3 AC |
841 | return; |
842 | ||
3fadccb3 | 843 | /* If we have a valid copy of the register, and new value == old |
0df8b418 | 844 | value, then don't bother doing the actual store. */ |
ef79d9a3 YQ |
845 | if (get_register_status (regnum) == REG_VALID |
846 | && (memcmp (register_buffer (regnum), buf, | |
847 | m_descr->sizeof_register[regnum]) == 0)) | |
3fadccb3 AC |
848 | return; |
849 | ||
ef79d9a3 YQ |
850 | target_prepare_to_store (this); |
851 | raw_set_cached_value (regnum, buf); | |
b94ade42 | 852 | |
b292235f TT |
853 | /* Invalidate the register after it is written, in case of a |
854 | failure. */ | |
855 | regcache_invalidator invalidator (this, regnum); | |
b94ade42 | 856 | |
ef79d9a3 | 857 | target_store_registers (this, regnum); |
594f7785 | 858 | |
b292235f TT |
859 | /* The target did not throw an error so we can discard invalidating |
860 | the register. */ | |
861 | invalidator.release (); | |
61a0eb5b AC |
862 | } |
863 | ||
68365089 | 864 | void |
2d522557 AC |
865 | regcache_cooked_write (struct regcache *regcache, int regnum, |
866 | const gdb_byte *buf) | |
ef79d9a3 YQ |
867 | { |
868 | regcache->cooked_write (regnum, buf); | |
869 | } | |
870 | ||
871 | void | |
872 | regcache::cooked_write (int regnum, const gdb_byte *buf) | |
68365089 | 873 | { |
d138e37a | 874 | gdb_assert (regnum >= 0); |
ef79d9a3 | 875 | gdb_assert (regnum < m_descr->nr_cooked_registers); |
d999647b | 876 | if (regnum < num_raw_registers ()) |
ef79d9a3 | 877 | raw_write (regnum, buf); |
d138e37a | 878 | else |
ef79d9a3 | 879 | gdbarch_pseudo_register_write (m_descr->gdbarch, this, |
d8124050 | 880 | regnum, buf); |
61a0eb5b AC |
881 | } |
882 | ||
06c0b04e AC |
883 | /* Perform a partial register transfer using a read, modify, write |
884 | operation. */ | |
885 | ||
886 | typedef void (regcache_read_ftype) (struct regcache *regcache, int regnum, | |
887 | void *buf); | |
888 | typedef void (regcache_write_ftype) (struct regcache *regcache, int regnum, | |
889 | const void *buf); | |
890 | ||
ef79d9a3 | 891 | enum register_status |
849d0ba8 YQ |
892 | readable_regcache::read_part (int regnum, int offset, int len, void *in, |
893 | bool is_raw) | |
894 | { | |
895 | struct gdbarch *gdbarch = arch (); | |
896 | gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum)); | |
897 | ||
898 | gdb_assert (in != NULL); | |
899 | gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]); | |
900 | gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]); | |
901 | /* Something to do? */ | |
902 | if (offset + len == 0) | |
903 | return REG_VALID; | |
904 | /* Read (when needed) ... */ | |
905 | enum register_status status; | |
906 | ||
907 | if (is_raw) | |
908 | status = raw_read (regnum, reg); | |
909 | else | |
910 | status = cooked_read (regnum, reg); | |
911 | if (status != REG_VALID) | |
912 | return status; | |
913 | ||
914 | /* ... modify ... */ | |
915 | memcpy (in, reg + offset, len); | |
916 | ||
917 | return REG_VALID; | |
918 | } | |
919 | ||
920 | enum register_status | |
921 | regcache::write_part (int regnum, int offset, int len, | |
d3037ba6 | 922 | const void *out, bool is_raw) |
ef79d9a3 YQ |
923 | { |
924 | struct gdbarch *gdbarch = arch (); | |
9890e433 | 925 | gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum)); |
123f5f96 | 926 | |
849d0ba8 | 927 | gdb_assert (out != NULL); |
ef79d9a3 YQ |
928 | gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]); |
929 | gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]); | |
06c0b04e AC |
930 | /* Something to do? */ |
931 | if (offset + len == 0) | |
05d1431c | 932 | return REG_VALID; |
0df8b418 | 933 | /* Read (when needed) ... */ |
849d0ba8 | 934 | if (offset > 0 |
ef79d9a3 | 935 | || offset + len < m_descr->sizeof_register[regnum]) |
06c0b04e | 936 | { |
05d1431c PA |
937 | enum register_status status; |
938 | ||
d3037ba6 YQ |
939 | if (is_raw) |
940 | status = raw_read (regnum, reg); | |
941 | else | |
942 | status = cooked_read (regnum, reg); | |
05d1431c PA |
943 | if (status != REG_VALID) |
944 | return status; | |
06c0b04e | 945 | } |
849d0ba8 YQ |
946 | |
947 | memcpy (reg + offset, out, len); | |
06c0b04e | 948 | /* ... write (when needed). */ |
849d0ba8 YQ |
949 | if (is_raw) |
950 | raw_write (regnum, reg); | |
951 | else | |
952 | cooked_write (regnum, reg); | |
05d1431c PA |
953 | |
954 | return REG_VALID; | |
06c0b04e AC |
955 | } |
956 | ||
05d1431c | 957 | enum register_status |
06c0b04e | 958 | regcache_raw_read_part (struct regcache *regcache, int regnum, |
2d522557 | 959 | int offset, int len, gdb_byte *buf) |
06c0b04e | 960 | { |
ef79d9a3 YQ |
961 | return regcache->raw_read_part (regnum, offset, len, buf); |
962 | } | |
123f5f96 | 963 | |
ef79d9a3 | 964 | enum register_status |
849d0ba8 | 965 | readable_regcache::raw_read_part (int regnum, int offset, int len, gdb_byte *buf) |
ef79d9a3 | 966 | { |
4e888c28 | 967 | assert_regnum (regnum); |
849d0ba8 | 968 | return read_part (regnum, offset, len, buf, true); |
06c0b04e AC |
969 | } |
970 | ||
971 | void | |
972 | regcache_raw_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 973 | int offset, int len, const gdb_byte *buf) |
06c0b04e | 974 | { |
ef79d9a3 YQ |
975 | regcache->raw_write_part (regnum, offset, len, buf); |
976 | } | |
123f5f96 | 977 | |
ef79d9a3 YQ |
978 | void |
979 | regcache::raw_write_part (int regnum, int offset, int len, | |
980 | const gdb_byte *buf) | |
981 | { | |
4e888c28 | 982 | assert_regnum (regnum); |
849d0ba8 | 983 | write_part (regnum, offset, len, buf, true); |
06c0b04e AC |
984 | } |
985 | ||
05d1431c | 986 | enum register_status |
06c0b04e | 987 | regcache_cooked_read_part (struct regcache *regcache, int regnum, |
2d522557 | 988 | int offset, int len, gdb_byte *buf) |
06c0b04e | 989 | { |
ef79d9a3 YQ |
990 | return regcache->cooked_read_part (regnum, offset, len, buf); |
991 | } | |
123f5f96 | 992 | |
ef79d9a3 YQ |
993 | |
994 | enum register_status | |
849d0ba8 YQ |
995 | readable_regcache::cooked_read_part (int regnum, int offset, int len, |
996 | gdb_byte *buf) | |
ef79d9a3 YQ |
997 | { |
998 | gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers); | |
849d0ba8 | 999 | return read_part (regnum, offset, len, buf, false); |
06c0b04e AC |
1000 | } |
1001 | ||
1002 | void | |
1003 | regcache_cooked_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 1004 | int offset, int len, const gdb_byte *buf) |
06c0b04e | 1005 | { |
ef79d9a3 YQ |
1006 | regcache->cooked_write_part (regnum, offset, len, buf); |
1007 | } | |
123f5f96 | 1008 | |
ef79d9a3 YQ |
1009 | void |
1010 | regcache::cooked_write_part (int regnum, int offset, int len, | |
1011 | const gdb_byte *buf) | |
1012 | { | |
1013 | gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers); | |
849d0ba8 | 1014 | write_part (regnum, offset, len, buf, false); |
06c0b04e | 1015 | } |
32178cab | 1016 | |
a16d75cc | 1017 | /* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */ |
9a661b68 MK |
1018 | |
1019 | void | |
6618125d | 1020 | regcache_raw_supply (struct regcache *regcache, int regnum, const void *buf) |
ef79d9a3 YQ |
1021 | { |
1022 | gdb_assert (regcache != NULL); | |
1023 | regcache->raw_supply (regnum, buf); | |
1024 | } | |
1025 | ||
1026 | void | |
1027 | regcache::raw_supply (int regnum, const void *buf) | |
9a661b68 MK |
1028 | { |
1029 | void *regbuf; | |
1030 | size_t size; | |
1031 | ||
4e888c28 | 1032 | assert_regnum (regnum); |
ef79d9a3 | 1033 | gdb_assert (!m_readonly_p); |
9a661b68 | 1034 | |
ef79d9a3 YQ |
1035 | regbuf = register_buffer (regnum); |
1036 | size = m_descr->sizeof_register[regnum]; | |
9a661b68 MK |
1037 | |
1038 | if (buf) | |
ee99023e PA |
1039 | { |
1040 | memcpy (regbuf, buf, size); | |
ef79d9a3 | 1041 | m_register_status[regnum] = REG_VALID; |
ee99023e | 1042 | } |
9a661b68 | 1043 | else |
ee99023e PA |
1044 | { |
1045 | /* This memset not strictly necessary, but better than garbage | |
1046 | in case the register value manages to escape somewhere (due | |
1047 | to a bug, no less). */ | |
1048 | memset (regbuf, 0, size); | |
ef79d9a3 | 1049 | m_register_status[regnum] = REG_UNAVAILABLE; |
ee99023e | 1050 | } |
9a661b68 MK |
1051 | } |
1052 | ||
b057297a AH |
1053 | /* Supply register REGNUM to REGCACHE. Value to supply is an integer stored at |
1054 | address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED. If | |
1055 | the register size is greater than ADDR_LEN, then the integer will be sign or | |
1056 | zero extended. If the register size is smaller than the integer, then the | |
1057 | most significant bytes of the integer will be truncated. */ | |
1058 | ||
1059 | void | |
1060 | regcache::raw_supply_integer (int regnum, const gdb_byte *addr, int addr_len, | |
1061 | bool is_signed) | |
1062 | { | |
1063 | enum bfd_endian byte_order = gdbarch_byte_order (m_descr->gdbarch); | |
1064 | gdb_byte *regbuf; | |
1065 | size_t regsize; | |
1066 | ||
4e888c28 | 1067 | assert_regnum (regnum); |
b057297a AH |
1068 | gdb_assert (!m_readonly_p); |
1069 | ||
1070 | regbuf = register_buffer (regnum); | |
1071 | regsize = m_descr->sizeof_register[regnum]; | |
1072 | ||
1073 | copy_integer_to_size (regbuf, regsize, addr, addr_len, is_signed, | |
1074 | byte_order); | |
1075 | m_register_status[regnum] = REG_VALID; | |
1076 | } | |
1077 | ||
f81fdd35 AH |
1078 | /* Supply register REGNUM with zeroed value to REGCACHE. This is not the same |
1079 | as calling raw_supply with NULL (which will set the state to | |
1080 | unavailable). */ | |
1081 | ||
1082 | void | |
1083 | regcache::raw_supply_zeroed (int regnum) | |
1084 | { | |
1085 | void *regbuf; | |
1086 | size_t size; | |
1087 | ||
4e888c28 | 1088 | assert_regnum (regnum); |
f81fdd35 AH |
1089 | gdb_assert (!m_readonly_p); |
1090 | ||
1091 | regbuf = register_buffer (regnum); | |
1092 | size = m_descr->sizeof_register[regnum]; | |
1093 | ||
1094 | memset (regbuf, 0, size); | |
1095 | m_register_status[regnum] = REG_VALID; | |
1096 | } | |
1097 | ||
9a661b68 MK |
1098 | /* Collect register REGNUM from REGCACHE and store its contents in BUF. */ |
1099 | ||
1100 | void | |
6618125d | 1101 | regcache_raw_collect (const struct regcache *regcache, int regnum, void *buf) |
ef79d9a3 YQ |
1102 | { |
1103 | gdb_assert (regcache != NULL && buf != NULL); | |
1104 | regcache->raw_collect (regnum, buf); | |
1105 | } | |
1106 | ||
1107 | void | |
1108 | regcache::raw_collect (int regnum, void *buf) const | |
9a661b68 MK |
1109 | { |
1110 | const void *regbuf; | |
1111 | size_t size; | |
1112 | ||
ef79d9a3 | 1113 | gdb_assert (buf != NULL); |
4e888c28 | 1114 | assert_regnum (regnum); |
9a661b68 | 1115 | |
ef79d9a3 YQ |
1116 | regbuf = register_buffer (regnum); |
1117 | size = m_descr->sizeof_register[regnum]; | |
9a661b68 MK |
1118 | memcpy (buf, regbuf, size); |
1119 | } | |
1120 | ||
0b309272 AA |
1121 | /* Transfer a single or all registers belonging to a certain register |
1122 | set to or from a buffer. This is the main worker function for | |
1123 | regcache_supply_regset and regcache_collect_regset. */ | |
1124 | ||
b057297a AH |
1125 | /* Collect register REGNUM from REGCACHE. Store collected value as an integer |
1126 | at address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED. | |
1127 | If ADDR_LEN is greater than the register size, then the integer will be sign | |
1128 | or zero extended. If ADDR_LEN is smaller than the register size, then the | |
1129 | most significant bytes of the integer will be truncated. */ | |
1130 | ||
1131 | void | |
1132 | regcache::raw_collect_integer (int regnum, gdb_byte *addr, int addr_len, | |
1133 | bool is_signed) const | |
1134 | { | |
1135 | enum bfd_endian byte_order = gdbarch_byte_order (m_descr->gdbarch); | |
1136 | const gdb_byte *regbuf; | |
1137 | size_t regsize; | |
1138 | ||
4e888c28 | 1139 | assert_regnum (regnum); |
b057297a AH |
1140 | |
1141 | regbuf = register_buffer (regnum); | |
1142 | regsize = m_descr->sizeof_register[regnum]; | |
1143 | ||
1144 | copy_integer_to_size (addr, addr_len, regbuf, regsize, is_signed, | |
1145 | byte_order); | |
1146 | } | |
1147 | ||
ef79d9a3 YQ |
1148 | void |
1149 | regcache::transfer_regset (const struct regset *regset, | |
1150 | struct regcache *out_regcache, | |
1151 | int regnum, const void *in_buf, | |
1152 | void *out_buf, size_t size) const | |
0b309272 AA |
1153 | { |
1154 | const struct regcache_map_entry *map; | |
1155 | int offs = 0, count; | |
1156 | ||
19ba03f4 SM |
1157 | for (map = (const struct regcache_map_entry *) regset->regmap; |
1158 | (count = map->count) != 0; | |
1159 | map++) | |
0b309272 AA |
1160 | { |
1161 | int regno = map->regno; | |
1162 | int slot_size = map->size; | |
1163 | ||
1164 | if (slot_size == 0 && regno != REGCACHE_MAP_SKIP) | |
ef79d9a3 | 1165 | slot_size = m_descr->sizeof_register[regno]; |
0b309272 AA |
1166 | |
1167 | if (regno == REGCACHE_MAP_SKIP | |
1168 | || (regnum != -1 | |
1169 | && (regnum < regno || regnum >= regno + count))) | |
1170 | offs += count * slot_size; | |
1171 | ||
1172 | else if (regnum == -1) | |
1173 | for (; count--; regno++, offs += slot_size) | |
1174 | { | |
1175 | if (offs + slot_size > size) | |
1176 | break; | |
1177 | ||
1178 | if (out_buf) | |
ef79d9a3 | 1179 | raw_collect (regno, (gdb_byte *) out_buf + offs); |
0b309272 | 1180 | else |
ef79d9a3 YQ |
1181 | out_regcache->raw_supply (regno, in_buf |
1182 | ? (const gdb_byte *) in_buf + offs | |
1183 | : NULL); | |
0b309272 AA |
1184 | } |
1185 | else | |
1186 | { | |
1187 | /* Transfer a single register and return. */ | |
1188 | offs += (regnum - regno) * slot_size; | |
1189 | if (offs + slot_size > size) | |
1190 | return; | |
1191 | ||
1192 | if (out_buf) | |
ef79d9a3 | 1193 | raw_collect (regnum, (gdb_byte *) out_buf + offs); |
0b309272 | 1194 | else |
ef79d9a3 YQ |
1195 | out_regcache->raw_supply (regnum, in_buf |
1196 | ? (const gdb_byte *) in_buf + offs | |
1197 | : NULL); | |
0b309272 AA |
1198 | return; |
1199 | } | |
1200 | } | |
1201 | } | |
1202 | ||
1203 | /* Supply register REGNUM from BUF to REGCACHE, using the register map | |
1204 | in REGSET. If REGNUM is -1, do this for all registers in REGSET. | |
1205 | If BUF is NULL, set the register(s) to "unavailable" status. */ | |
1206 | ||
1207 | void | |
1208 | regcache_supply_regset (const struct regset *regset, | |
1209 | struct regcache *regcache, | |
1210 | int regnum, const void *buf, size_t size) | |
1211 | { | |
ef79d9a3 YQ |
1212 | regcache->supply_regset (regset, regnum, buf, size); |
1213 | } | |
1214 | ||
1215 | void | |
1216 | regcache::supply_regset (const struct regset *regset, | |
1217 | int regnum, const void *buf, size_t size) | |
1218 | { | |
1219 | transfer_regset (regset, this, regnum, buf, NULL, size); | |
0b309272 AA |
1220 | } |
1221 | ||
1222 | /* Collect register REGNUM from REGCACHE to BUF, using the register | |
1223 | map in REGSET. If REGNUM is -1, do this for all registers in | |
1224 | REGSET. */ | |
1225 | ||
1226 | void | |
1227 | regcache_collect_regset (const struct regset *regset, | |
1228 | const struct regcache *regcache, | |
1229 | int regnum, void *buf, size_t size) | |
1230 | { | |
ef79d9a3 YQ |
1231 | regcache->collect_regset (regset, regnum, buf, size); |
1232 | } | |
1233 | ||
1234 | void | |
1235 | regcache::collect_regset (const struct regset *regset, | |
1236 | int regnum, void *buf, size_t size) const | |
1237 | { | |
1238 | transfer_regset (regset, NULL, regnum, NULL, buf, size); | |
0b309272 AA |
1239 | } |
1240 | ||
193cb69f | 1241 | |
515630c5 | 1242 | /* Special handling for register PC. */ |
32178cab MS |
1243 | |
1244 | CORE_ADDR | |
515630c5 | 1245 | regcache_read_pc (struct regcache *regcache) |
32178cab | 1246 | { |
ac7936df | 1247 | struct gdbarch *gdbarch = regcache->arch (); |
61a1198a | 1248 | |
32178cab MS |
1249 | CORE_ADDR pc_val; |
1250 | ||
61a1198a UW |
1251 | if (gdbarch_read_pc_p (gdbarch)) |
1252 | pc_val = gdbarch_read_pc (gdbarch, regcache); | |
cde9ea48 | 1253 | /* Else use per-frame method on get_current_frame. */ |
214e098a | 1254 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
cde9ea48 | 1255 | { |
61a1198a | 1256 | ULONGEST raw_val; |
123f5f96 | 1257 | |
05d1431c PA |
1258 | if (regcache_cooked_read_unsigned (regcache, |
1259 | gdbarch_pc_regnum (gdbarch), | |
1260 | &raw_val) == REG_UNAVAILABLE) | |
1261 | throw_error (NOT_AVAILABLE_ERROR, _("PC register is not available")); | |
1262 | ||
214e098a | 1263 | pc_val = gdbarch_addr_bits_remove (gdbarch, raw_val); |
cde9ea48 AC |
1264 | } |
1265 | else | |
515630c5 UW |
1266 | internal_error (__FILE__, __LINE__, |
1267 | _("regcache_read_pc: Unable to find PC")); | |
32178cab MS |
1268 | return pc_val; |
1269 | } | |
1270 | ||
32178cab | 1271 | void |
515630c5 | 1272 | regcache_write_pc (struct regcache *regcache, CORE_ADDR pc) |
32178cab | 1273 | { |
ac7936df | 1274 | struct gdbarch *gdbarch = regcache->arch (); |
61a1198a | 1275 | |
61a1198a UW |
1276 | if (gdbarch_write_pc_p (gdbarch)) |
1277 | gdbarch_write_pc (gdbarch, regcache, pc); | |
214e098a | 1278 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1279 | regcache_cooked_write_unsigned (regcache, |
214e098a | 1280 | gdbarch_pc_regnum (gdbarch), pc); |
61a1198a UW |
1281 | else |
1282 | internal_error (__FILE__, __LINE__, | |
515630c5 | 1283 | _("regcache_write_pc: Unable to update PC")); |
edb3359d DJ |
1284 | |
1285 | /* Writing the PC (for instance, from "load") invalidates the | |
1286 | current frame. */ | |
1287 | reinit_frame_cache (); | |
32178cab MS |
1288 | } |
1289 | ||
d999647b | 1290 | int |
31716595 | 1291 | reg_buffer::num_raw_registers () const |
d999647b YQ |
1292 | { |
1293 | return gdbarch_num_regs (arch ()); | |
1294 | } | |
1295 | ||
ed771251 | 1296 | void |
ef79d9a3 | 1297 | regcache::debug_print_register (const char *func, int regno) |
ed771251 | 1298 | { |
ef79d9a3 | 1299 | struct gdbarch *gdbarch = arch (); |
ed771251 AH |
1300 | |
1301 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1302 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) | |
1303 | && gdbarch_register_name (gdbarch, regno) != NULL | |
1304 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
1305 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
1306 | gdbarch_register_name (gdbarch, regno)); | |
1307 | else | |
1308 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1309 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) | |
1310 | { | |
1311 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1312 | int size = register_size (gdbarch, regno); | |
ef79d9a3 | 1313 | gdb_byte *buf = register_buffer (regno); |
ed771251 AH |
1314 | |
1315 | fprintf_unfiltered (gdb_stdlog, " = "); | |
1316 | for (int i = 0; i < size; i++) | |
1317 | { | |
1318 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1319 | } | |
1320 | if (size <= sizeof (LONGEST)) | |
1321 | { | |
1322 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); | |
1323 | ||
1324 | fprintf_unfiltered (gdb_stdlog, " %s %s", | |
1325 | core_addr_to_string_nz (val), plongest (val)); | |
1326 | } | |
1327 | } | |
1328 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1329 | } | |
32178cab | 1330 | |
705152c5 | 1331 | static void |
0b39b52e | 1332 | reg_flush_command (const char *command, int from_tty) |
705152c5 MS |
1333 | { |
1334 | /* Force-flush the register cache. */ | |
1335 | registers_changed (); | |
1336 | if (from_tty) | |
a3f17187 | 1337 | printf_filtered (_("Register cache flushed.\n")); |
705152c5 MS |
1338 | } |
1339 | ||
ef79d9a3 YQ |
1340 | void |
1341 | regcache::dump (ui_file *file, enum regcache_dump_what what_to_dump) | |
af030b9a | 1342 | { |
ef79d9a3 | 1343 | struct gdbarch *gdbarch = m_descr->gdbarch; |
af030b9a AC |
1344 | int regnum; |
1345 | int footnote_nr = 0; | |
af030b9a AC |
1346 | int footnote_register_offset = 0; |
1347 | int footnote_register_type_name_null = 0; | |
1348 | long register_offset = 0; | |
af030b9a | 1349 | |
ef79d9a3 | 1350 | gdb_assert (m_descr->nr_cooked_registers |
214e098a UW |
1351 | == (gdbarch_num_regs (gdbarch) |
1352 | + gdbarch_num_pseudo_regs (gdbarch))); | |
af030b9a | 1353 | |
ef79d9a3 | 1354 | for (regnum = -1; regnum < m_descr->nr_cooked_registers; regnum++) |
af030b9a AC |
1355 | { |
1356 | /* Name. */ | |
1357 | if (regnum < 0) | |
1358 | fprintf_unfiltered (file, " %-10s", "Name"); | |
1359 | else | |
1360 | { | |
214e098a | 1361 | const char *p = gdbarch_register_name (gdbarch, regnum); |
123f5f96 | 1362 | |
af030b9a AC |
1363 | if (p == NULL) |
1364 | p = ""; | |
1365 | else if (p[0] == '\0') | |
1366 | p = "''"; | |
1367 | fprintf_unfiltered (file, " %-10s", p); | |
1368 | } | |
1369 | ||
1370 | /* Number. */ | |
1371 | if (regnum < 0) | |
1372 | fprintf_unfiltered (file, " %4s", "Nr"); | |
1373 | else | |
1374 | fprintf_unfiltered (file, " %4d", regnum); | |
1375 | ||
1376 | /* Relative number. */ | |
1377 | if (regnum < 0) | |
1378 | fprintf_unfiltered (file, " %4s", "Rel"); | |
214e098a | 1379 | else if (regnum < gdbarch_num_regs (gdbarch)) |
af030b9a AC |
1380 | fprintf_unfiltered (file, " %4d", regnum); |
1381 | else | |
f57d151a | 1382 | fprintf_unfiltered (file, " %4d", |
214e098a | 1383 | (regnum - gdbarch_num_regs (gdbarch))); |
af030b9a AC |
1384 | |
1385 | /* Offset. */ | |
1386 | if (regnum < 0) | |
1387 | fprintf_unfiltered (file, " %6s ", "Offset"); | |
1388 | else | |
1389 | { | |
1390 | fprintf_unfiltered (file, " %6ld", | |
ef79d9a3 YQ |
1391 | m_descr->register_offset[regnum]); |
1392 | if (register_offset != m_descr->register_offset[regnum] | |
d3b22ed5 | 1393 | || (regnum > 0 |
ef79d9a3 YQ |
1394 | && (m_descr->register_offset[regnum] |
1395 | != (m_descr->register_offset[regnum - 1] | |
1396 | + m_descr->sizeof_register[regnum - 1]))) | |
d3b22ed5 | 1397 | ) |
af030b9a AC |
1398 | { |
1399 | if (!footnote_register_offset) | |
1400 | footnote_register_offset = ++footnote_nr; | |
1401 | fprintf_unfiltered (file, "*%d", footnote_register_offset); | |
1402 | } | |
1403 | else | |
1404 | fprintf_unfiltered (file, " "); | |
ef79d9a3 YQ |
1405 | register_offset = (m_descr->register_offset[regnum] |
1406 | + m_descr->sizeof_register[regnum]); | |
af030b9a AC |
1407 | } |
1408 | ||
1409 | /* Size. */ | |
1410 | if (regnum < 0) | |
1411 | fprintf_unfiltered (file, " %5s ", "Size"); | |
1412 | else | |
ef79d9a3 | 1413 | fprintf_unfiltered (file, " %5ld", m_descr->sizeof_register[regnum]); |
af030b9a AC |
1414 | |
1415 | /* Type. */ | |
b59ff9d5 AC |
1416 | { |
1417 | const char *t; | |
6c3e20f1 | 1418 | std::string name_holder; |
123f5f96 | 1419 | |
b59ff9d5 AC |
1420 | if (regnum < 0) |
1421 | t = "Type"; | |
1422 | else | |
1423 | { | |
1424 | static const char blt[] = "builtin_type"; | |
123f5f96 | 1425 | |
ef79d9a3 | 1426 | t = TYPE_NAME (register_type (arch (), regnum)); |
b59ff9d5 AC |
1427 | if (t == NULL) |
1428 | { | |
b59ff9d5 AC |
1429 | if (!footnote_register_type_name_null) |
1430 | footnote_register_type_name_null = ++footnote_nr; | |
6c3e20f1 TT |
1431 | name_holder = string_printf ("*%d", |
1432 | footnote_register_type_name_null); | |
1433 | t = name_holder.c_str (); | |
b59ff9d5 AC |
1434 | } |
1435 | /* Chop a leading builtin_type. */ | |
61012eef | 1436 | if (startswith (t, blt)) |
b59ff9d5 AC |
1437 | t += strlen (blt); |
1438 | } | |
1439 | fprintf_unfiltered (file, " %-15s", t); | |
1440 | } | |
1441 | ||
1442 | /* Leading space always present. */ | |
1443 | fprintf_unfiltered (file, " "); | |
af030b9a AC |
1444 | |
1445 | /* Value, raw. */ | |
1446 | if (what_to_dump == regcache_dump_raw) | |
1447 | { | |
1448 | if (regnum < 0) | |
1449 | fprintf_unfiltered (file, "Raw value"); | |
d999647b | 1450 | else if (regnum >= num_raw_registers ()) |
af030b9a | 1451 | fprintf_unfiltered (file, "<cooked>"); |
ef79d9a3 | 1452 | else if (get_register_status (regnum) == REG_UNKNOWN) |
af030b9a | 1453 | fprintf_unfiltered (file, "<invalid>"); |
ef79d9a3 | 1454 | else if (get_register_status (regnum) == REG_UNAVAILABLE) |
ee99023e | 1455 | fprintf_unfiltered (file, "<unavailable>"); |
af030b9a AC |
1456 | else |
1457 | { | |
50d6adef AH |
1458 | raw_update (regnum); |
1459 | print_hex_chars (file, register_buffer (regnum), | |
ef79d9a3 | 1460 | m_descr->sizeof_register[regnum], |
30a25466 | 1461 | gdbarch_byte_order (gdbarch), true); |
af030b9a AC |
1462 | } |
1463 | } | |
1464 | ||
1465 | /* Value, cooked. */ | |
1466 | if (what_to_dump == regcache_dump_cooked) | |
1467 | { | |
1468 | if (regnum < 0) | |
1469 | fprintf_unfiltered (file, "Cooked value"); | |
1470 | else | |
1471 | { | |
50d6adef | 1472 | const gdb_byte *buf = NULL; |
05d1431c | 1473 | enum register_status status; |
50d6adef AH |
1474 | struct value *value = NULL; |
1475 | ||
d999647b | 1476 | if (regnum < num_raw_registers ()) |
50d6adef AH |
1477 | { |
1478 | raw_update (regnum); | |
1479 | status = get_register_status (regnum); | |
1480 | buf = register_buffer (regnum); | |
1481 | } | |
1482 | else | |
1483 | { | |
1484 | value = cooked_read_value (regnum); | |
1485 | ||
1486 | if (!value_optimized_out (value) | |
1487 | && value_entirely_available (value)) | |
1488 | { | |
1489 | status = REG_VALID; | |
1490 | buf = value_contents_all (value); | |
1491 | } | |
1492 | else | |
1493 | status = REG_UNAVAILABLE; | |
1494 | } | |
05d1431c | 1495 | |
05d1431c PA |
1496 | if (status == REG_UNKNOWN) |
1497 | fprintf_unfiltered (file, "<invalid>"); | |
1498 | else if (status == REG_UNAVAILABLE) | |
1499 | fprintf_unfiltered (file, "<unavailable>"); | |
1500 | else | |
d3eaaf66 | 1501 | print_hex_chars (file, buf, |
ef79d9a3 | 1502 | m_descr->sizeof_register[regnum], |
30a25466 | 1503 | gdbarch_byte_order (gdbarch), true); |
50d6adef AH |
1504 | |
1505 | if (value != NULL) | |
1506 | { | |
1507 | release_value (value); | |
1508 | value_free (value); | |
1509 | } | |
af030b9a AC |
1510 | } |
1511 | } | |
1512 | ||
b59ff9d5 AC |
1513 | /* Group members. */ |
1514 | if (what_to_dump == regcache_dump_groups) | |
1515 | { | |
1516 | if (regnum < 0) | |
1517 | fprintf_unfiltered (file, "Groups"); | |
1518 | else | |
1519 | { | |
b59ff9d5 | 1520 | const char *sep = ""; |
6c7d17ba | 1521 | struct reggroup *group; |
123f5f96 | 1522 | |
6c7d17ba AC |
1523 | for (group = reggroup_next (gdbarch, NULL); |
1524 | group != NULL; | |
1525 | group = reggroup_next (gdbarch, group)) | |
b59ff9d5 | 1526 | { |
6c7d17ba | 1527 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
b59ff9d5 | 1528 | { |
3e43a32a MS |
1529 | fprintf_unfiltered (file, |
1530 | "%s%s", sep, reggroup_name (group)); | |
b59ff9d5 AC |
1531 | sep = ","; |
1532 | } | |
1533 | } | |
1534 | } | |
1535 | } | |
1536 | ||
c21236dc PA |
1537 | /* Remote packet configuration. */ |
1538 | if (what_to_dump == regcache_dump_remote) | |
1539 | { | |
1540 | if (regnum < 0) | |
1541 | { | |
1542 | fprintf_unfiltered (file, "Rmt Nr g/G Offset"); | |
1543 | } | |
d999647b | 1544 | else if (regnum < num_raw_registers ()) |
c21236dc PA |
1545 | { |
1546 | int pnum, poffset; | |
1547 | ||
ef79d9a3 | 1548 | if (remote_register_number_and_offset (arch (), regnum, |
c21236dc PA |
1549 | &pnum, &poffset)) |
1550 | fprintf_unfiltered (file, "%7d %11d", pnum, poffset); | |
1551 | } | |
1552 | } | |
1553 | ||
af030b9a AC |
1554 | fprintf_unfiltered (file, "\n"); |
1555 | } | |
1556 | ||
af030b9a AC |
1557 | if (footnote_register_offset) |
1558 | fprintf_unfiltered (file, "*%d: Inconsistent register offsets.\n", | |
1559 | footnote_register_offset); | |
1560 | if (footnote_register_type_name_null) | |
1561 | fprintf_unfiltered (file, | |
1562 | "*%d: Register type's name NULL.\n", | |
1563 | footnote_register_type_name_null); | |
af030b9a AC |
1564 | } |
1565 | ||
1566 | static void | |
4e001312 | 1567 | regcache_print (const char *args, enum regcache_dump_what what_to_dump) |
af030b9a | 1568 | { |
ed4227b7 PA |
1569 | /* Where to send output. */ |
1570 | stdio_file file; | |
1571 | ui_file *out; | |
1572 | ||
af030b9a | 1573 | if (args == NULL) |
ed4227b7 | 1574 | out = gdb_stdout; |
af030b9a AC |
1575 | else |
1576 | { | |
d7e74731 | 1577 | if (!file.open (args, "w")) |
e2e0b3e5 | 1578 | perror_with_name (_("maintenance print architecture")); |
ed4227b7 PA |
1579 | out = &file; |
1580 | } | |
1581 | ||
1582 | if (target_has_registers) | |
1583 | get_current_regcache ()->dump (out, what_to_dump); | |
1584 | else | |
1585 | { | |
1586 | /* For the benefit of "maint print registers" & co when | |
1587 | debugging an executable, allow dumping a regcache even when | |
1588 | there is no thread selected / no registers. */ | |
f26ae15b | 1589 | regcache dummy_regs (target_gdbarch ()); |
ed4227b7 | 1590 | dummy_regs.dump (out, what_to_dump); |
af030b9a AC |
1591 | } |
1592 | } | |
1593 | ||
1594 | static void | |
4e001312 | 1595 | maintenance_print_registers (const char *args, int from_tty) |
af030b9a AC |
1596 | { |
1597 | regcache_print (args, regcache_dump_none); | |
1598 | } | |
1599 | ||
1600 | static void | |
4e001312 | 1601 | maintenance_print_raw_registers (const char *args, int from_tty) |
af030b9a AC |
1602 | { |
1603 | regcache_print (args, regcache_dump_raw); | |
1604 | } | |
1605 | ||
1606 | static void | |
4e001312 | 1607 | maintenance_print_cooked_registers (const char *args, int from_tty) |
af030b9a AC |
1608 | { |
1609 | regcache_print (args, regcache_dump_cooked); | |
1610 | } | |
1611 | ||
b59ff9d5 | 1612 | static void |
4e001312 | 1613 | maintenance_print_register_groups (const char *args, int from_tty) |
b59ff9d5 AC |
1614 | { |
1615 | regcache_print (args, regcache_dump_groups); | |
1616 | } | |
1617 | ||
c21236dc | 1618 | static void |
4e001312 | 1619 | maintenance_print_remote_registers (const char *args, int from_tty) |
c21236dc PA |
1620 | { |
1621 | regcache_print (args, regcache_dump_remote); | |
1622 | } | |
1623 | ||
8248946c YQ |
1624 | #if GDB_SELF_TEST |
1625 | #include "selftest.h" | |
1b30aaa5 YQ |
1626 | #include "selftest-arch.h" |
1627 | #include "gdbthread.h" | |
ec7a5fcb | 1628 | #include "target-float.h" |
8248946c YQ |
1629 | |
1630 | namespace selftests { | |
1631 | ||
e521e87e | 1632 | class regcache_access : public regcache |
8248946c | 1633 | { |
e521e87e YQ |
1634 | public: |
1635 | ||
1636 | /* Return the number of elements in current_regcache. */ | |
1637 | ||
1638 | static size_t | |
1639 | current_regcache_size () | |
1640 | { | |
1641 | return std::distance (regcache::current_regcache.begin (), | |
1642 | regcache::current_regcache.end ()); | |
1643 | } | |
1644 | }; | |
8248946c YQ |
1645 | |
1646 | static void | |
1647 | current_regcache_test (void) | |
1648 | { | |
1649 | /* It is empty at the start. */ | |
e521e87e | 1650 | SELF_CHECK (regcache_access::current_regcache_size () == 0); |
8248946c YQ |
1651 | |
1652 | ptid_t ptid1 (1), ptid2 (2), ptid3 (3); | |
1653 | ||
1654 | /* Get regcache from ptid1, a new regcache is added to | |
1655 | current_regcache. */ | |
1656 | regcache *regcache = get_thread_arch_aspace_regcache (ptid1, | |
1657 | target_gdbarch (), | |
1658 | NULL); | |
1659 | ||
1660 | SELF_CHECK (regcache != NULL); | |
1661 | SELF_CHECK (regcache->ptid () == ptid1); | |
e521e87e | 1662 | SELF_CHECK (regcache_access::current_regcache_size () == 1); |
8248946c YQ |
1663 | |
1664 | /* Get regcache from ptid2, a new regcache is added to | |
1665 | current_regcache. */ | |
1666 | regcache = get_thread_arch_aspace_regcache (ptid2, | |
1667 | target_gdbarch (), | |
1668 | NULL); | |
1669 | SELF_CHECK (regcache != NULL); | |
1670 | SELF_CHECK (regcache->ptid () == ptid2); | |
e521e87e | 1671 | SELF_CHECK (regcache_access::current_regcache_size () == 2); |
8248946c YQ |
1672 | |
1673 | /* Get regcache from ptid3, a new regcache is added to | |
1674 | current_regcache. */ | |
1675 | regcache = get_thread_arch_aspace_regcache (ptid3, | |
1676 | target_gdbarch (), | |
1677 | NULL); | |
1678 | SELF_CHECK (regcache != NULL); | |
1679 | SELF_CHECK (regcache->ptid () == ptid3); | |
e521e87e | 1680 | SELF_CHECK (regcache_access::current_regcache_size () == 3); |
8248946c YQ |
1681 | |
1682 | /* Get regcache from ptid2 again, nothing is added to | |
1683 | current_regcache. */ | |
1684 | regcache = get_thread_arch_aspace_regcache (ptid2, | |
1685 | target_gdbarch (), | |
1686 | NULL); | |
1687 | SELF_CHECK (regcache != NULL); | |
1688 | SELF_CHECK (regcache->ptid () == ptid2); | |
e521e87e | 1689 | SELF_CHECK (regcache_access::current_regcache_size () == 3); |
8248946c YQ |
1690 | |
1691 | /* Mark ptid2 is changed, so regcache of ptid2 should be removed from | |
1692 | current_regcache. */ | |
1693 | registers_changed_ptid (ptid2); | |
e521e87e | 1694 | SELF_CHECK (regcache_access::current_regcache_size () == 2); |
8248946c YQ |
1695 | } |
1696 | ||
1b30aaa5 YQ |
1697 | static void test_target_fetch_registers (target_ops *self, regcache *regs, |
1698 | int regno); | |
1699 | static void test_target_store_registers (target_ops *self, regcache *regs, | |
1700 | int regno); | |
1701 | static enum target_xfer_status | |
1702 | test_target_xfer_partial (struct target_ops *ops, | |
1703 | enum target_object object, | |
1704 | const char *annex, gdb_byte *readbuf, | |
1705 | const gdb_byte *writebuf, | |
1706 | ULONGEST offset, ULONGEST len, | |
1707 | ULONGEST *xfered_len); | |
1708 | ||
1709 | class target_ops_no_register : public test_target_ops | |
1710 | { | |
1711 | public: | |
1712 | target_ops_no_register () | |
1713 | : test_target_ops {} | |
1714 | { | |
1715 | to_fetch_registers = test_target_fetch_registers; | |
1716 | to_store_registers = test_target_store_registers; | |
1717 | to_xfer_partial = test_target_xfer_partial; | |
1718 | ||
1719 | to_data = this; | |
1720 | } | |
1721 | ||
1722 | void reset () | |
1723 | { | |
1724 | fetch_registers_called = 0; | |
1725 | store_registers_called = 0; | |
1726 | xfer_partial_called = 0; | |
1727 | } | |
1728 | ||
1729 | unsigned int fetch_registers_called = 0; | |
1730 | unsigned int store_registers_called = 0; | |
1731 | unsigned int xfer_partial_called = 0; | |
1732 | }; | |
1733 | ||
1734 | static void | |
1735 | test_target_fetch_registers (target_ops *self, regcache *regs, int regno) | |
1736 | { | |
1737 | auto ops = static_cast<target_ops_no_register *> (self->to_data); | |
1738 | ||
1739 | /* Mark register available. */ | |
1740 | regs->raw_supply_zeroed (regno); | |
1741 | ops->fetch_registers_called++; | |
1742 | } | |
1743 | ||
1744 | static void | |
1745 | test_target_store_registers (target_ops *self, regcache *regs, int regno) | |
1746 | { | |
1747 | auto ops = static_cast<target_ops_no_register *> (self->to_data); | |
1748 | ||
1749 | ops->store_registers_called++; | |
1750 | } | |
1751 | ||
1752 | static enum target_xfer_status | |
1753 | test_target_xfer_partial (struct target_ops *self, enum target_object object, | |
1754 | const char *annex, gdb_byte *readbuf, | |
1755 | const gdb_byte *writebuf, | |
1756 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) | |
1757 | { | |
1758 | auto ops = static_cast<target_ops_no_register *> (self->to_data); | |
1759 | ||
1760 | ops->xfer_partial_called++; | |
1761 | ||
1762 | *xfered_len = len; | |
1763 | return TARGET_XFER_OK; | |
1764 | } | |
1765 | ||
1766 | class readwrite_regcache : public regcache | |
1767 | { | |
1768 | public: | |
1769 | readwrite_regcache (struct gdbarch *gdbarch) | |
1770 | : regcache (gdbarch, nullptr, false) | |
1771 | {} | |
1772 | }; | |
1773 | ||
1774 | /* Test regcache::cooked_read gets registers from raw registers and | |
1775 | memory instead of target to_{fetch,store}_registers. */ | |
1776 | ||
1777 | static void | |
1778 | cooked_read_test (struct gdbarch *gdbarch) | |
1779 | { | |
1780 | /* Error out if debugging something, because we're going to push the | |
1781 | test target, which would pop any existing target. */ | |
1782 | if (current_target.to_stratum >= process_stratum) | |
1783 | error (_("target already pushed")); | |
1784 | ||
1785 | /* Create a mock environment. An inferior with a thread, with a | |
1786 | process_stratum target pushed. */ | |
1787 | ||
1788 | target_ops_no_register mock_target; | |
1789 | ptid_t mock_ptid (1, 1); | |
1790 | inferior mock_inferior (mock_ptid.pid ()); | |
1791 | address_space mock_aspace {}; | |
1792 | mock_inferior.gdbarch = gdbarch; | |
1793 | mock_inferior.aspace = &mock_aspace; | |
1794 | thread_info mock_thread (&mock_inferior, mock_ptid); | |
1795 | ||
1796 | scoped_restore restore_thread_list | |
1797 | = make_scoped_restore (&thread_list, &mock_thread); | |
1798 | ||
1799 | /* Add the mock inferior to the inferior list so that look ups by | |
1800 | target+ptid can find it. */ | |
1801 | scoped_restore restore_inferior_list | |
1802 | = make_scoped_restore (&inferior_list); | |
1803 | inferior_list = &mock_inferior; | |
1804 | ||
1805 | /* Switch to the mock inferior. */ | |
1806 | scoped_restore_current_inferior restore_current_inferior; | |
1807 | set_current_inferior (&mock_inferior); | |
1808 | ||
1809 | /* Push the process_stratum target so we can mock accessing | |
1810 | registers. */ | |
1811 | push_target (&mock_target); | |
1812 | ||
1813 | /* Pop it again on exit (return/exception). */ | |
1814 | struct on_exit | |
1815 | { | |
1816 | ~on_exit () | |
1817 | { | |
1818 | pop_all_targets_at_and_above (process_stratum); | |
1819 | } | |
1820 | } pop_targets; | |
1821 | ||
1822 | /* Switch to the mock thread. */ | |
1823 | scoped_restore restore_inferior_ptid | |
1824 | = make_scoped_restore (&inferior_ptid, mock_ptid); | |
1825 | ||
1826 | /* Test that read one raw register from regcache_no_target will go | |
1827 | to the target layer. */ | |
1828 | int regnum; | |
1829 | ||
1830 | /* Find a raw register which size isn't zero. */ | |
1831 | for (regnum = 0; regnum < gdbarch_num_regs (gdbarch); regnum++) | |
1832 | { | |
1833 | if (register_size (gdbarch, regnum) != 0) | |
1834 | break; | |
1835 | } | |
1836 | ||
1837 | readwrite_regcache readwrite (gdbarch); | |
1838 | gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum)); | |
1839 | ||
1840 | readwrite.raw_read (regnum, buf.data ()); | |
1841 | ||
1842 | /* raw_read calls target_fetch_registers. */ | |
1843 | SELF_CHECK (mock_target.fetch_registers_called > 0); | |
1844 | mock_target.reset (); | |
1845 | ||
1846 | /* Mark all raw registers valid, so the following raw registers | |
1847 | accesses won't go to target. */ | |
1848 | for (auto i = 0; i < gdbarch_num_regs (gdbarch); i++) | |
1849 | readwrite.raw_update (i); | |
1850 | ||
1851 | mock_target.reset (); | |
1852 | /* Then, read all raw and pseudo registers, and don't expect calling | |
1853 | to_{fetch,store}_registers. */ | |
1854 | for (int regnum = 0; | |
1855 | regnum < gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch); | |
1856 | regnum++) | |
1857 | { | |
1858 | if (register_size (gdbarch, regnum) == 0) | |
1859 | continue; | |
1860 | ||
1861 | gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum)); | |
1862 | ||
1863 | SELF_CHECK (REG_VALID == readwrite.cooked_read (regnum, buf.data ())); | |
1864 | ||
dc711524 YQ |
1865 | SELF_CHECK (mock_target.fetch_registers_called == 0); |
1866 | SELF_CHECK (mock_target.store_registers_called == 0); | |
1b30aaa5 YQ |
1867 | |
1868 | /* Some SPU pseudo registers are got via TARGET_OBJECT_SPU. */ | |
1869 | if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu) | |
1870 | SELF_CHECK (mock_target.xfer_partial_called == 0); | |
1871 | ||
1872 | mock_target.reset (); | |
1873 | } | |
a63f2d2f YQ |
1874 | |
1875 | regcache readonly (regcache::readonly, readwrite); | |
1876 | ||
1877 | /* GDB may go to target layer to fetch all registers and memory for | |
1878 | readonly regcache. */ | |
1879 | mock_target.reset (); | |
1880 | ||
1881 | for (int regnum = 0; | |
1882 | regnum < gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch); | |
1883 | regnum++) | |
1884 | { | |
a63f2d2f YQ |
1885 | if (register_size (gdbarch, regnum) == 0) |
1886 | continue; | |
1887 | ||
1888 | gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum)); | |
1889 | enum register_status status = readonly.cooked_read (regnum, | |
1890 | buf.data ()); | |
1891 | ||
1892 | if (regnum < gdbarch_num_regs (gdbarch)) | |
1893 | { | |
1894 | auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
1895 | ||
1896 | if (bfd_arch == bfd_arch_frv || bfd_arch == bfd_arch_h8300 | |
1897 | || bfd_arch == bfd_arch_m32c || bfd_arch == bfd_arch_sh | |
1898 | || bfd_arch == bfd_arch_alpha || bfd_arch == bfd_arch_v850 | |
1899 | || bfd_arch == bfd_arch_msp430 || bfd_arch == bfd_arch_mep | |
1900 | || bfd_arch == bfd_arch_mips || bfd_arch == bfd_arch_v850_rh850 | |
1901 | || bfd_arch == bfd_arch_tic6x || bfd_arch == bfd_arch_mn10300 | |
1902 | || bfd_arch == bfd_arch_rl78 || bfd_arch == bfd_arch_score) | |
1903 | { | |
1904 | /* Raw registers. If raw registers are not in save_reggroup, | |
1905 | their status are unknown. */ | |
1906 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
1907 | SELF_CHECK (status == REG_VALID); | |
1908 | else | |
1909 | SELF_CHECK (status == REG_UNKNOWN); | |
1910 | } | |
1911 | else | |
1912 | SELF_CHECK (status == REG_VALID); | |
1913 | } | |
1914 | else | |
1915 | { | |
1916 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
1917 | SELF_CHECK (status == REG_VALID); | |
1918 | else | |
1919 | { | |
1920 | /* If pseudo registers are not in save_reggroup, some of | |
1921 | them can be computed from saved raw registers, but some | |
1922 | of them are unknown. */ | |
1923 | auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
1924 | ||
1925 | if (bfd_arch == bfd_arch_frv | |
1926 | || bfd_arch == bfd_arch_m32c | |
1927 | || bfd_arch == bfd_arch_mep | |
1928 | || bfd_arch == bfd_arch_sh) | |
1929 | SELF_CHECK (status == REG_VALID || status == REG_UNKNOWN); | |
1930 | else if (bfd_arch == bfd_arch_mips | |
1931 | || bfd_arch == bfd_arch_h8300) | |
1932 | SELF_CHECK (status == REG_UNKNOWN); | |
1933 | else | |
1934 | SELF_CHECK (status == REG_VALID); | |
1935 | } | |
1936 | } | |
1937 | ||
1938 | SELF_CHECK (mock_target.fetch_registers_called == 0); | |
1939 | SELF_CHECK (mock_target.store_registers_called == 0); | |
1940 | SELF_CHECK (mock_target.xfer_partial_called == 0); | |
1941 | ||
1942 | mock_target.reset (); | |
1943 | } | |
1b30aaa5 YQ |
1944 | } |
1945 | ||
ec7a5fcb YQ |
1946 | /* Test regcache::cooked_write by writing some expected contents to |
1947 | registers, and checking that contents read from registers and the | |
1948 | expected contents are the same. */ | |
1949 | ||
1950 | static void | |
1951 | cooked_write_test (struct gdbarch *gdbarch) | |
1952 | { | |
1953 | /* Error out if debugging something, because we're going to push the | |
1954 | test target, which would pop any existing target. */ | |
1955 | if (current_target.to_stratum >= process_stratum) | |
1956 | error (_("target already pushed")); | |
1957 | ||
1958 | /* Create a mock environment. A process_stratum target pushed. */ | |
1959 | ||
1960 | target_ops_no_register mock_target; | |
1961 | ||
1962 | /* Push the process_stratum target so we can mock accessing | |
1963 | registers. */ | |
1964 | push_target (&mock_target); | |
1965 | ||
1966 | /* Pop it again on exit (return/exception). */ | |
1967 | struct on_exit | |
1968 | { | |
1969 | ~on_exit () | |
1970 | { | |
1971 | pop_all_targets_at_and_above (process_stratum); | |
1972 | } | |
1973 | } pop_targets; | |
1974 | ||
1975 | readwrite_regcache readwrite (gdbarch); | |
1976 | ||
1977 | const int num_regs = (gdbarch_num_regs (gdbarch) | |
1978 | + gdbarch_num_pseudo_regs (gdbarch)); | |
1979 | ||
1980 | for (auto regnum = 0; regnum < num_regs; regnum++) | |
1981 | { | |
1982 | if (register_size (gdbarch, regnum) == 0 | |
1983 | || gdbarch_cannot_store_register (gdbarch, regnum)) | |
1984 | continue; | |
1985 | ||
1986 | auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
1987 | ||
1988 | if ((bfd_arch == bfd_arch_sparc | |
1989 | /* SPARC64_CWP_REGNUM, SPARC64_PSTATE_REGNUM, | |
1990 | SPARC64_ASI_REGNUM and SPARC64_CCR_REGNUM are hard to test. */ | |
1991 | && gdbarch_ptr_bit (gdbarch) == 64 | |
1992 | && (regnum >= gdbarch_num_regs (gdbarch) | |
1993 | && regnum <= gdbarch_num_regs (gdbarch) + 4)) | |
1994 | || (bfd_arch == bfd_arch_sh | |
1995 | /* FPSCR_C_REGNUM in sh64 is hard to test. */ | |
1996 | && gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_sh5 | |
1997 | && regnum == 243) | |
1998 | || (bfd_arch == bfd_arch_spu | |
1999 | /* SPU pseudo registers except SPU_SP_REGNUM are got by | |
2000 | TARGET_OBJECT_SPU. */ | |
2001 | && regnum >= gdbarch_num_regs (gdbarch) && regnum != 130)) | |
2002 | continue; | |
2003 | ||
2004 | std::vector<gdb_byte> expected (register_size (gdbarch, regnum), 0); | |
2005 | std::vector<gdb_byte> buf (register_size (gdbarch, regnum), 0); | |
2006 | const auto type = register_type (gdbarch, regnum); | |
2007 | ||
2008 | if (TYPE_CODE (type) == TYPE_CODE_FLT | |
2009 | || TYPE_CODE (type) == TYPE_CODE_DECFLOAT) | |
2010 | { | |
2011 | /* Generate valid float format. */ | |
2012 | target_float_from_string (expected.data (), type, "1.25"); | |
2013 | } | |
2014 | else if (TYPE_CODE (type) == TYPE_CODE_INT | |
2015 | || TYPE_CODE (type) == TYPE_CODE_ARRAY | |
2016 | || TYPE_CODE (type) == TYPE_CODE_PTR | |
2017 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
2018 | || TYPE_CODE (type) == TYPE_CODE_STRUCT) | |
2019 | { | |
2020 | if (bfd_arch == bfd_arch_ia64 | |
2021 | || (regnum >= gdbarch_num_regs (gdbarch) | |
2022 | && (bfd_arch == bfd_arch_xtensa | |
2023 | || bfd_arch == bfd_arch_bfin | |
2024 | || bfd_arch == bfd_arch_m32c | |
2025 | /* m68hc11 pseudo registers are in memory. */ | |
2026 | || bfd_arch == bfd_arch_m68hc11 | |
2027 | || bfd_arch == bfd_arch_m68hc12 | |
2028 | || bfd_arch == bfd_arch_s390)) | |
2029 | || (bfd_arch == bfd_arch_frv | |
2030 | /* FRV pseudo registers except iacc0. */ | |
2031 | && regnum > gdbarch_num_regs (gdbarch))) | |
2032 | { | |
2033 | /* Skip setting the expected values for some architecture | |
2034 | registers. */ | |
2035 | } | |
2036 | else if (bfd_arch == bfd_arch_rl78 && regnum == 40) | |
2037 | { | |
2038 | /* RL78_PC_REGNUM */ | |
2039 | for (auto j = 0; j < register_size (gdbarch, regnum) - 1; j++) | |
2040 | expected[j] = j; | |
2041 | } | |
2042 | else | |
2043 | { | |
2044 | for (auto j = 0; j < register_size (gdbarch, regnum); j++) | |
2045 | expected[j] = j; | |
2046 | } | |
2047 | } | |
2048 | else if (TYPE_CODE (type) == TYPE_CODE_FLAGS) | |
2049 | { | |
2050 | /* No idea how to test flags. */ | |
2051 | continue; | |
2052 | } | |
2053 | else | |
2054 | { | |
2055 | /* If we don't know how to create the expected value for the | |
2056 | this type, make it fail. */ | |
2057 | SELF_CHECK (0); | |
2058 | } | |
2059 | ||
2060 | readwrite.cooked_write (regnum, expected.data ()); | |
2061 | ||
2062 | SELF_CHECK (readwrite.cooked_read (regnum, buf.data ()) == REG_VALID); | |
2063 | SELF_CHECK (expected == buf); | |
2064 | } | |
2065 | } | |
2066 | ||
8248946c YQ |
2067 | } // namespace selftests |
2068 | #endif /* GDB_SELF_TEST */ | |
2069 | ||
32178cab MS |
2070 | void |
2071 | _initialize_regcache (void) | |
2072 | { | |
3e43a32a MS |
2073 | regcache_descr_handle |
2074 | = gdbarch_data_register_post_init (init_regcache_descr); | |
705152c5 | 2075 | |
f4c5303c | 2076 | observer_attach_target_changed (regcache_observer_target_changed); |
e521e87e | 2077 | observer_attach_thread_ptid_changed (regcache::regcache_thread_ptid_changed); |
f4c5303c | 2078 | |
705152c5 | 2079 | add_com ("flushregs", class_maintenance, reg_flush_command, |
1bedd215 | 2080 | _("Force gdb to flush its register cache (maintainer command)")); |
39f77062 | 2081 | |
3e43a32a MS |
2082 | add_cmd ("registers", class_maintenance, maintenance_print_registers, |
2083 | _("Print the internal register configuration.\n" | |
2084 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 2085 | add_cmd ("raw-registers", class_maintenance, |
3e43a32a MS |
2086 | maintenance_print_raw_registers, |
2087 | _("Print the internal register configuration " | |
2088 | "including raw values.\n" | |
2089 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 2090 | add_cmd ("cooked-registers", class_maintenance, |
3e43a32a MS |
2091 | maintenance_print_cooked_registers, |
2092 | _("Print the internal register configuration " | |
2093 | "including cooked values.\n" | |
2094 | "Takes an optional file parameter."), &maintenanceprintlist); | |
b59ff9d5 | 2095 | add_cmd ("register-groups", class_maintenance, |
3e43a32a MS |
2096 | maintenance_print_register_groups, |
2097 | _("Print the internal register configuration " | |
2098 | "including each register's group.\n" | |
2099 | "Takes an optional file parameter."), | |
af030b9a | 2100 | &maintenanceprintlist); |
c21236dc PA |
2101 | add_cmd ("remote-registers", class_maintenance, |
2102 | maintenance_print_remote_registers, _("\ | |
2103 | Print the internal register configuration including each register's\n\ | |
2104 | remote register number and buffer offset in the g/G packets.\n\ | |
2105 | Takes an optional file parameter."), | |
2106 | &maintenanceprintlist); | |
1526853e | 2107 | |
8248946c | 2108 | #if GDB_SELF_TEST |
1526853e | 2109 | selftests::register_test ("current_regcache", selftests::current_regcache_test); |
1b30aaa5 YQ |
2110 | |
2111 | selftests::register_test_foreach_arch ("regcache::cooked_read_test", | |
2112 | selftests::cooked_read_test); | |
ec7a5fcb YQ |
2113 | selftests::register_test_foreach_arch ("regcache::cooked_write_test", |
2114 | selftests::cooked_write_test); | |
8248946c | 2115 | #endif |
32178cab | 2116 | } |