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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 | ||
ef79d9a3 | 229 | gdbarch * |
31716595 | 230 | reg_buffer::arch () const |
ef79d9a3 YQ |
231 | { |
232 | return m_descr->gdbarch; | |
233 | } | |
3fadccb3 | 234 | |
ddaaf0fb SM |
235 | /* See regcache.h. */ |
236 | ||
237 | ptid_t | |
238 | regcache_get_ptid (const struct regcache *regcache) | |
239 | { | |
ef79d9a3 | 240 | gdb_assert (!ptid_equal (regcache->ptid (), minus_one_ptid)); |
ddaaf0fb | 241 | |
ef79d9a3 | 242 | return regcache->ptid (); |
ddaaf0fb SM |
243 | } |
244 | ||
b292235f | 245 | /* Cleanup class for invalidating a register. */ |
b94ade42 | 246 | |
b292235f | 247 | class regcache_invalidator |
b94ade42 | 248 | { |
b292235f | 249 | public: |
b94ade42 | 250 | |
b292235f TT |
251 | regcache_invalidator (struct regcache *regcache, int regnum) |
252 | : m_regcache (regcache), | |
253 | m_regnum (regnum) | |
254 | { | |
255 | } | |
b94ade42 | 256 | |
b292235f TT |
257 | ~regcache_invalidator () |
258 | { | |
259 | if (m_regcache != nullptr) | |
260 | regcache_invalidate (m_regcache, m_regnum); | |
261 | } | |
b94ade42 | 262 | |
b292235f | 263 | DISABLE_COPY_AND_ASSIGN (regcache_invalidator); |
b94ade42 | 264 | |
b292235f TT |
265 | void release () |
266 | { | |
267 | m_regcache = nullptr; | |
268 | } | |
269 | ||
270 | private: | |
271 | ||
272 | struct regcache *m_regcache; | |
273 | int m_regnum; | |
274 | }; | |
b94ade42 | 275 | |
51b1fe4e AC |
276 | /* Return a pointer to register REGNUM's buffer cache. */ |
277 | ||
ef79d9a3 | 278 | gdb_byte * |
31716595 | 279 | reg_buffer::register_buffer (int regnum) const |
51b1fe4e | 280 | { |
ef79d9a3 | 281 | return m_registers + m_descr->register_offset[regnum]; |
51b1fe4e AC |
282 | } |
283 | ||
ef79d9a3 YQ |
284 | void |
285 | regcache::save (regcache_cooked_read_ftype *cooked_read, | |
286 | void *src) | |
287 | { | |
288 | struct gdbarch *gdbarch = m_descr->gdbarch; | |
2d28509a | 289 | int regnum; |
123f5f96 | 290 | |
2d28509a | 291 | /* The DST should be `read-only', if it wasn't then the save would |
5602984a | 292 | end up trying to write the register values back out to the |
2d28509a | 293 | target. */ |
ef79d9a3 | 294 | gdb_assert (m_readonly_p); |
2d28509a | 295 | /* Clear the dest. */ |
ef79d9a3 | 296 | memset (m_registers, 0, m_descr->sizeof_cooked_registers); |
6c5218df | 297 | memset (m_register_status, 0, m_descr->nr_cooked_registers); |
2d28509a | 298 | /* Copy over any registers (identified by their membership in the |
f57d151a UW |
299 | save_reggroup) and mark them as valid. The full [0 .. gdbarch_num_regs + |
300 | gdbarch_num_pseudo_regs) range is checked since some architectures need | |
5602984a | 301 | to save/restore `cooked' registers that live in memory. */ |
ef79d9a3 | 302 | for (regnum = 0; regnum < m_descr->nr_cooked_registers; regnum++) |
2d28509a AC |
303 | { |
304 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
305 | { | |
50d6adef AH |
306 | gdb_byte *dst_buf = register_buffer (regnum); |
307 | enum register_status status = cooked_read (src, regnum, dst_buf); | |
123f5f96 | 308 | |
50d6adef AH |
309 | gdb_assert (status != REG_UNKNOWN); |
310 | ||
311 | if (status != REG_VALID) | |
312 | memset (dst_buf, 0, register_size (gdbarch, regnum)); | |
05d1431c | 313 | |
ef79d9a3 | 314 | m_register_status[regnum] = status; |
2d28509a AC |
315 | } |
316 | } | |
317 | } | |
318 | ||
ef79d9a3 YQ |
319 | void |
320 | regcache::restore (struct regcache *src) | |
2d28509a | 321 | { |
ef79d9a3 | 322 | struct gdbarch *gdbarch = m_descr->gdbarch; |
2d28509a | 323 | int regnum; |
123f5f96 | 324 | |
fc5b8736 | 325 | gdb_assert (src != NULL); |
5602984a AC |
326 | /* The dst had better not be read-only. If it is, the `restore' |
327 | doesn't make much sense. */ | |
ef79d9a3 YQ |
328 | gdb_assert (!m_readonly_p); |
329 | gdb_assert (src->m_readonly_p); | |
fc5b8736 YQ |
330 | |
331 | gdb_assert (gdbarch == src->arch ()); | |
332 | ||
2d28509a | 333 | /* Copy over any registers, being careful to only restore those that |
f57d151a UW |
334 | were both saved and need to be restored. The full [0 .. gdbarch_num_regs |
335 | + gdbarch_num_pseudo_regs) range is checked since some architectures need | |
5602984a | 336 | to save/restore `cooked' registers that live in memory. */ |
ef79d9a3 | 337 | for (regnum = 0; regnum < m_descr->nr_cooked_registers; regnum++) |
2d28509a | 338 | { |
5602984a | 339 | if (gdbarch_register_reggroup_p (gdbarch, regnum, restore_reggroup)) |
2d28509a | 340 | { |
ef79d9a3 YQ |
341 | if (src->m_register_status[regnum] == REG_VALID) |
342 | cooked_write (regnum, src->register_buffer (regnum)); | |
2d28509a AC |
343 | } |
344 | } | |
345 | } | |
346 | ||
3fadccb3 AC |
347 | struct regcache * |
348 | regcache_dup (struct regcache *src) | |
349 | { | |
deb1fa3e | 350 | return new regcache (regcache::readonly, *src); |
3fadccb3 AC |
351 | } |
352 | ||
39181896 | 353 | enum register_status |
ee99023e | 354 | regcache_register_status (const struct regcache *regcache, int regnum) |
3fadccb3 AC |
355 | { |
356 | gdb_assert (regcache != NULL); | |
ef79d9a3 YQ |
357 | return regcache->get_register_status (regnum); |
358 | } | |
359 | ||
360 | enum register_status | |
361 | regcache::get_register_status (int regnum) const | |
362 | { | |
6ed7ea50 | 363 | gdb_assert (regnum >= 0); |
ef79d9a3 YQ |
364 | if (m_readonly_p) |
365 | gdb_assert (regnum < m_descr->nr_cooked_registers); | |
6ed7ea50 | 366 | else |
d999647b | 367 | gdb_assert (regnum < num_raw_registers ()); |
6ed7ea50 | 368 | |
ef79d9a3 | 369 | return (enum register_status) m_register_status[regnum]; |
3fadccb3 AC |
370 | } |
371 | ||
9c5ea4d9 UW |
372 | void |
373 | regcache_invalidate (struct regcache *regcache, int regnum) | |
374 | { | |
375 | gdb_assert (regcache != NULL); | |
ef79d9a3 | 376 | regcache->invalidate (regnum); |
9c5ea4d9 UW |
377 | } |
378 | ||
ef79d9a3 YQ |
379 | void |
380 | regcache::invalidate (int regnum) | |
381 | { | |
ef79d9a3 | 382 | gdb_assert (!m_readonly_p); |
4e888c28 | 383 | assert_regnum (regnum); |
ef79d9a3 YQ |
384 | m_register_status[regnum] = REG_UNKNOWN; |
385 | } | |
9c5ea4d9 | 386 | |
4e888c28 | 387 | void |
31716595 | 388 | reg_buffer::assert_regnum (int regnum) const |
4e888c28 | 389 | { |
31716595 YQ |
390 | gdb_assert (regnum >= 0); |
391 | if (m_has_pseudo) | |
392 | gdb_assert (regnum < m_descr->nr_cooked_registers); | |
393 | else | |
394 | gdb_assert (regnum < gdbarch_num_regs (arch ())); | |
4e888c28 YQ |
395 | } |
396 | ||
3fadccb3 | 397 | /* Global structure containing the current regcache. */ |
3fadccb3 | 398 | |
5ebd2499 | 399 | /* NOTE: this is a write-through cache. There is no "dirty" bit for |
32178cab MS |
400 | recording if the register values have been changed (eg. by the |
401 | user). Therefore all registers must be written back to the | |
402 | target when appropriate. */ | |
e521e87e | 403 | std::forward_list<regcache *> regcache::current_regcache; |
c2250ad1 UW |
404 | |
405 | struct regcache * | |
e2d96639 YQ |
406 | get_thread_arch_aspace_regcache (ptid_t ptid, struct gdbarch *gdbarch, |
407 | struct address_space *aspace) | |
c2250ad1 | 408 | { |
e521e87e | 409 | for (const auto ®cache : regcache::current_regcache) |
94bb8dfe YQ |
410 | if (ptid_equal (regcache->ptid (), ptid) && regcache->arch () == gdbarch) |
411 | return regcache; | |
594f7785 | 412 | |
94bb8dfe | 413 | regcache *new_regcache = new regcache (gdbarch, aspace, false); |
594f7785 | 414 | |
e521e87e | 415 | regcache::current_regcache.push_front (new_regcache); |
ef79d9a3 | 416 | new_regcache->set_ptid (ptid); |
e2d96639 | 417 | |
e2d96639 YQ |
418 | return new_regcache; |
419 | } | |
420 | ||
421 | struct regcache * | |
422 | get_thread_arch_regcache (ptid_t ptid, struct gdbarch *gdbarch) | |
423 | { | |
ed4227b7 | 424 | address_space *aspace = target_thread_address_space (ptid); |
b78974c3 | 425 | |
e2d96639 | 426 | return get_thread_arch_aspace_regcache (ptid, gdbarch, aspace); |
594f7785 UW |
427 | } |
428 | ||
c2250ad1 UW |
429 | static ptid_t current_thread_ptid; |
430 | static struct gdbarch *current_thread_arch; | |
431 | ||
432 | struct regcache * | |
433 | get_thread_regcache (ptid_t ptid) | |
434 | { | |
435 | if (!current_thread_arch || !ptid_equal (current_thread_ptid, ptid)) | |
436 | { | |
437 | current_thread_ptid = ptid; | |
438 | current_thread_arch = target_thread_architecture (ptid); | |
439 | } | |
440 | ||
441 | return get_thread_arch_regcache (ptid, current_thread_arch); | |
442 | } | |
443 | ||
444 | struct regcache * | |
445 | get_current_regcache (void) | |
594f7785 UW |
446 | { |
447 | return get_thread_regcache (inferior_ptid); | |
448 | } | |
32178cab | 449 | |
361c8ade GB |
450 | /* See common/common-regcache.h. */ |
451 | ||
452 | struct regcache * | |
453 | get_thread_regcache_for_ptid (ptid_t ptid) | |
454 | { | |
455 | return get_thread_regcache (ptid); | |
456 | } | |
32178cab | 457 | |
f4c5303c OF |
458 | /* Observer for the target_changed event. */ |
459 | ||
2c0b251b | 460 | static void |
f4c5303c OF |
461 | regcache_observer_target_changed (struct target_ops *target) |
462 | { | |
463 | registers_changed (); | |
464 | } | |
465 | ||
5231c1fd PA |
466 | /* Update global variables old ptids to hold NEW_PTID if they were |
467 | holding OLD_PTID. */ | |
e521e87e YQ |
468 | void |
469 | regcache::regcache_thread_ptid_changed (ptid_t old_ptid, ptid_t new_ptid) | |
5231c1fd | 470 | { |
e521e87e | 471 | for (auto ®cache : regcache::current_regcache) |
94bb8dfe YQ |
472 | { |
473 | if (ptid_equal (regcache->ptid (), old_ptid)) | |
474 | regcache->set_ptid (new_ptid); | |
475 | } | |
5231c1fd PA |
476 | } |
477 | ||
32178cab MS |
478 | /* Low level examining and depositing of registers. |
479 | ||
480 | The caller is responsible for making sure that the inferior is | |
481 | stopped before calling the fetching routines, or it will get | |
482 | garbage. (a change from GDB version 3, in which the caller got the | |
483 | value from the last stop). */ | |
484 | ||
485 | /* REGISTERS_CHANGED () | |
486 | ||
487 | Indicate that registers may have changed, so invalidate the cache. */ | |
488 | ||
489 | void | |
e66408ed | 490 | registers_changed_ptid (ptid_t ptid) |
32178cab | 491 | { |
e521e87e | 492 | for (auto oit = regcache::current_regcache.before_begin (), |
94bb8dfe | 493 | it = std::next (oit); |
e521e87e | 494 | it != regcache::current_regcache.end (); |
94bb8dfe | 495 | ) |
c2250ad1 | 496 | { |
94bb8dfe | 497 | if (ptid_match ((*it)->ptid (), ptid)) |
e66408ed | 498 | { |
94bb8dfe | 499 | delete *it; |
e521e87e | 500 | it = regcache::current_regcache.erase_after (oit); |
e66408ed | 501 | } |
94bb8dfe YQ |
502 | else |
503 | oit = it++; | |
c2250ad1 | 504 | } |
32178cab | 505 | |
c34fd852 | 506 | if (ptid_match (current_thread_ptid, ptid)) |
041274d8 PA |
507 | { |
508 | current_thread_ptid = null_ptid; | |
509 | current_thread_arch = NULL; | |
510 | } | |
32178cab | 511 | |
c34fd852 | 512 | if (ptid_match (inferior_ptid, ptid)) |
041274d8 PA |
513 | { |
514 | /* We just deleted the regcache of the current thread. Need to | |
515 | forget about any frames we have cached, too. */ | |
516 | reinit_frame_cache (); | |
517 | } | |
518 | } | |
c2250ad1 | 519 | |
041274d8 PA |
520 | void |
521 | registers_changed (void) | |
522 | { | |
523 | registers_changed_ptid (minus_one_ptid); | |
a5d9d57d | 524 | |
32178cab MS |
525 | /* Force cleanup of any alloca areas if using C alloca instead of |
526 | a builtin alloca. This particular call is used to clean up | |
527 | areas allocated by low level target code which may build up | |
528 | during lengthy interactions between gdb and the target before | |
529 | gdb gives control to the user (ie watchpoints). */ | |
530 | alloca (0); | |
32178cab MS |
531 | } |
532 | ||
8e368124 AH |
533 | void |
534 | regcache_raw_update (struct regcache *regcache, int regnum) | |
61a0eb5b | 535 | { |
8e368124 | 536 | gdb_assert (regcache != NULL); |
ef79d9a3 YQ |
537 | |
538 | regcache->raw_update (regnum); | |
539 | } | |
540 | ||
541 | void | |
542 | regcache::raw_update (int regnum) | |
543 | { | |
4e888c28 | 544 | assert_regnum (regnum); |
8e368124 | 545 | |
3fadccb3 AC |
546 | /* Make certain that the register cache is up-to-date with respect |
547 | to the current thread. This switching shouldn't be necessary | |
548 | only there is still only one target side register cache. Sigh! | |
549 | On the bright side, at least there is a regcache object. */ | |
8e368124 | 550 | |
ef79d9a3 | 551 | if (!m_readonly_p && get_register_status (regnum) == REG_UNKNOWN) |
3fadccb3 | 552 | { |
ef79d9a3 | 553 | target_fetch_registers (this, regnum); |
788c8b10 PA |
554 | |
555 | /* A number of targets can't access the whole set of raw | |
556 | registers (because the debug API provides no means to get at | |
557 | them). */ | |
ef79d9a3 YQ |
558 | if (m_register_status[regnum] == REG_UNKNOWN) |
559 | m_register_status[regnum] = REG_UNAVAILABLE; | |
3fadccb3 | 560 | } |
8e368124 AH |
561 | } |
562 | ||
563 | enum register_status | |
564 | regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf) | |
ef79d9a3 YQ |
565 | { |
566 | return regcache->raw_read (regnum, buf); | |
567 | } | |
568 | ||
569 | enum register_status | |
849d0ba8 | 570 | readable_regcache::raw_read (int regnum, gdb_byte *buf) |
8e368124 AH |
571 | { |
572 | gdb_assert (buf != NULL); | |
ef79d9a3 | 573 | raw_update (regnum); |
05d1431c | 574 | |
ef79d9a3 YQ |
575 | if (m_register_status[regnum] != REG_VALID) |
576 | memset (buf, 0, m_descr->sizeof_register[regnum]); | |
05d1431c | 577 | else |
ef79d9a3 YQ |
578 | memcpy (buf, register_buffer (regnum), |
579 | m_descr->sizeof_register[regnum]); | |
05d1431c | 580 | |
ef79d9a3 | 581 | return (enum register_status) m_register_status[regnum]; |
61a0eb5b AC |
582 | } |
583 | ||
05d1431c | 584 | enum register_status |
28fc6740 | 585 | regcache_raw_read_signed (struct regcache *regcache, int regnum, LONGEST *val) |
ef79d9a3 YQ |
586 | { |
587 | gdb_assert (regcache != NULL); | |
6f98355c | 588 | return regcache->raw_read (regnum, val); |
ef79d9a3 YQ |
589 | } |
590 | ||
6f98355c | 591 | template<typename T, typename> |
ef79d9a3 | 592 | enum register_status |
849d0ba8 | 593 | readable_regcache::raw_read (int regnum, T *val) |
28fc6740 | 594 | { |
2d522557 | 595 | gdb_byte *buf; |
05d1431c | 596 | enum register_status status; |
123f5f96 | 597 | |
4e888c28 | 598 | assert_regnum (regnum); |
ef79d9a3 YQ |
599 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); |
600 | status = raw_read (regnum, buf); | |
05d1431c | 601 | if (status == REG_VALID) |
6f98355c YQ |
602 | *val = extract_integer<T> (buf, |
603 | m_descr->sizeof_register[regnum], | |
604 | gdbarch_byte_order (m_descr->gdbarch)); | |
05d1431c PA |
605 | else |
606 | *val = 0; | |
607 | return status; | |
28fc6740 AC |
608 | } |
609 | ||
05d1431c | 610 | enum register_status |
28fc6740 AC |
611 | regcache_raw_read_unsigned (struct regcache *regcache, int regnum, |
612 | ULONGEST *val) | |
ef79d9a3 YQ |
613 | { |
614 | gdb_assert (regcache != NULL); | |
6f98355c | 615 | return regcache->raw_read (regnum, val); |
28fc6740 AC |
616 | } |
617 | ||
c00dcbe9 MK |
618 | void |
619 | regcache_raw_write_signed (struct regcache *regcache, int regnum, LONGEST val) | |
ef79d9a3 YQ |
620 | { |
621 | gdb_assert (regcache != NULL); | |
6f98355c | 622 | regcache->raw_write (regnum, val); |
ef79d9a3 YQ |
623 | } |
624 | ||
6f98355c | 625 | template<typename T, typename> |
ef79d9a3 | 626 | void |
6f98355c | 627 | regcache::raw_write (int regnum, T val) |
c00dcbe9 | 628 | { |
7c543f7b | 629 | gdb_byte *buf; |
123f5f96 | 630 | |
4e888c28 | 631 | assert_regnum (regnum); |
ef79d9a3 | 632 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); |
6f98355c YQ |
633 | store_integer (buf, m_descr->sizeof_register[regnum], |
634 | gdbarch_byte_order (m_descr->gdbarch), val); | |
ef79d9a3 | 635 | raw_write (regnum, buf); |
c00dcbe9 MK |
636 | } |
637 | ||
638 | void | |
639 | regcache_raw_write_unsigned (struct regcache *regcache, int regnum, | |
640 | ULONGEST val) | |
ef79d9a3 YQ |
641 | { |
642 | gdb_assert (regcache != NULL); | |
6f98355c | 643 | regcache->raw_write (regnum, val); |
c00dcbe9 MK |
644 | } |
645 | ||
9fd15b2e YQ |
646 | LONGEST |
647 | regcache_raw_get_signed (struct regcache *regcache, int regnum) | |
648 | { | |
649 | LONGEST value; | |
650 | enum register_status status; | |
651 | ||
652 | status = regcache_raw_read_signed (regcache, regnum, &value); | |
653 | if (status == REG_UNAVAILABLE) | |
654 | throw_error (NOT_AVAILABLE_ERROR, | |
655 | _("Register %d is not available"), regnum); | |
656 | return value; | |
657 | } | |
658 | ||
05d1431c | 659 | enum register_status |
2d522557 | 660 | regcache_cooked_read (struct regcache *regcache, int regnum, gdb_byte *buf) |
ef79d9a3 YQ |
661 | { |
662 | return regcache->cooked_read (regnum, buf); | |
663 | } | |
664 | ||
665 | enum register_status | |
849d0ba8 | 666 | readable_regcache::cooked_read (int regnum, gdb_byte *buf) |
68365089 | 667 | { |
d138e37a | 668 | gdb_assert (regnum >= 0); |
ef79d9a3 | 669 | gdb_assert (regnum < m_descr->nr_cooked_registers); |
d999647b | 670 | if (regnum < num_raw_registers ()) |
ef79d9a3 | 671 | return raw_read (regnum, buf); |
849d0ba8 | 672 | else if (m_has_pseudo |
ef79d9a3 | 673 | && m_register_status[regnum] != REG_UNKNOWN) |
05d1431c | 674 | { |
ef79d9a3 YQ |
675 | if (m_register_status[regnum] == REG_VALID) |
676 | memcpy (buf, register_buffer (regnum), | |
677 | m_descr->sizeof_register[regnum]); | |
05d1431c | 678 | else |
ef79d9a3 | 679 | memset (buf, 0, m_descr->sizeof_register[regnum]); |
05d1431c | 680 | |
ef79d9a3 | 681 | return (enum register_status) m_register_status[regnum]; |
05d1431c | 682 | } |
ef79d9a3 | 683 | else if (gdbarch_pseudo_register_read_value_p (m_descr->gdbarch)) |
3543a589 TT |
684 | { |
685 | struct value *mark, *computed; | |
686 | enum register_status result = REG_VALID; | |
687 | ||
688 | mark = value_mark (); | |
689 | ||
ef79d9a3 YQ |
690 | computed = gdbarch_pseudo_register_read_value (m_descr->gdbarch, |
691 | this, regnum); | |
3543a589 TT |
692 | if (value_entirely_available (computed)) |
693 | memcpy (buf, value_contents_raw (computed), | |
ef79d9a3 | 694 | m_descr->sizeof_register[regnum]); |
3543a589 TT |
695 | else |
696 | { | |
ef79d9a3 | 697 | memset (buf, 0, m_descr->sizeof_register[regnum]); |
3543a589 TT |
698 | result = REG_UNAVAILABLE; |
699 | } | |
700 | ||
701 | value_free_to_mark (mark); | |
702 | ||
703 | return result; | |
704 | } | |
d138e37a | 705 | else |
ef79d9a3 | 706 | return gdbarch_pseudo_register_read (m_descr->gdbarch, this, |
05d1431c | 707 | regnum, buf); |
61a0eb5b AC |
708 | } |
709 | ||
3543a589 TT |
710 | struct value * |
711 | regcache_cooked_read_value (struct regcache *regcache, int regnum) | |
ef79d9a3 YQ |
712 | { |
713 | return regcache->cooked_read_value (regnum); | |
714 | } | |
715 | ||
716 | struct value * | |
849d0ba8 | 717 | readable_regcache::cooked_read_value (int regnum) |
3543a589 TT |
718 | { |
719 | gdb_assert (regnum >= 0); | |
ef79d9a3 | 720 | gdb_assert (regnum < m_descr->nr_cooked_registers); |
3543a589 | 721 | |
d999647b | 722 | if (regnum < num_raw_registers () |
849d0ba8 | 723 | || (m_has_pseudo && m_register_status[regnum] != REG_UNKNOWN) |
ef79d9a3 | 724 | || !gdbarch_pseudo_register_read_value_p (m_descr->gdbarch)) |
3543a589 TT |
725 | { |
726 | struct value *result; | |
727 | ||
ef79d9a3 | 728 | result = allocate_value (register_type (m_descr->gdbarch, regnum)); |
3543a589 TT |
729 | VALUE_LVAL (result) = lval_register; |
730 | VALUE_REGNUM (result) = regnum; | |
731 | ||
732 | /* It is more efficient in general to do this delegation in this | |
733 | direction than in the other one, even though the value-based | |
734 | API is preferred. */ | |
ef79d9a3 YQ |
735 | if (cooked_read (regnum, |
736 | value_contents_raw (result)) == REG_UNAVAILABLE) | |
3543a589 TT |
737 | mark_value_bytes_unavailable (result, 0, |
738 | TYPE_LENGTH (value_type (result))); | |
739 | ||
740 | return result; | |
741 | } | |
742 | else | |
ef79d9a3 YQ |
743 | return gdbarch_pseudo_register_read_value (m_descr->gdbarch, |
744 | this, regnum); | |
3543a589 TT |
745 | } |
746 | ||
05d1431c | 747 | enum register_status |
a378f419 AC |
748 | regcache_cooked_read_signed (struct regcache *regcache, int regnum, |
749 | LONGEST *val) | |
ef79d9a3 YQ |
750 | { |
751 | gdb_assert (regcache != NULL); | |
6f98355c | 752 | return regcache->cooked_read (regnum, val); |
ef79d9a3 YQ |
753 | } |
754 | ||
6f98355c | 755 | template<typename T, typename> |
ef79d9a3 | 756 | enum register_status |
849d0ba8 | 757 | readable_regcache::cooked_read (int regnum, T *val) |
a378f419 | 758 | { |
05d1431c | 759 | enum register_status status; |
2d522557 | 760 | gdb_byte *buf; |
123f5f96 | 761 | |
ef79d9a3 YQ |
762 | gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers); |
763 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); | |
764 | status = cooked_read (regnum, buf); | |
05d1431c | 765 | if (status == REG_VALID) |
6f98355c YQ |
766 | *val = extract_integer<T> (buf, m_descr->sizeof_register[regnum], |
767 | gdbarch_byte_order (m_descr->gdbarch)); | |
05d1431c PA |
768 | else |
769 | *val = 0; | |
770 | return status; | |
a378f419 AC |
771 | } |
772 | ||
05d1431c | 773 | enum register_status |
a378f419 AC |
774 | regcache_cooked_read_unsigned (struct regcache *regcache, int regnum, |
775 | ULONGEST *val) | |
ef79d9a3 YQ |
776 | { |
777 | gdb_assert (regcache != NULL); | |
6f98355c | 778 | return regcache->cooked_read (regnum, val); |
a378f419 AC |
779 | } |
780 | ||
a66a9c23 AC |
781 | void |
782 | regcache_cooked_write_signed (struct regcache *regcache, int regnum, | |
783 | LONGEST val) | |
ef79d9a3 YQ |
784 | { |
785 | gdb_assert (regcache != NULL); | |
6f98355c | 786 | regcache->cooked_write (regnum, val); |
ef79d9a3 YQ |
787 | } |
788 | ||
6f98355c | 789 | template<typename T, typename> |
ef79d9a3 | 790 | void |
6f98355c | 791 | regcache::cooked_write (int regnum, T val) |
a66a9c23 | 792 | { |
7c543f7b | 793 | gdb_byte *buf; |
123f5f96 | 794 | |
ef79d9a3 YQ |
795 | gdb_assert (regnum >=0 && regnum < m_descr->nr_cooked_registers); |
796 | buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]); | |
6f98355c YQ |
797 | store_integer (buf, m_descr->sizeof_register[regnum], |
798 | gdbarch_byte_order (m_descr->gdbarch), val); | |
ef79d9a3 | 799 | cooked_write (regnum, buf); |
a66a9c23 AC |
800 | } |
801 | ||
802 | void | |
803 | regcache_cooked_write_unsigned (struct regcache *regcache, int regnum, | |
804 | ULONGEST val) | |
ef79d9a3 YQ |
805 | { |
806 | gdb_assert (regcache != NULL); | |
6f98355c | 807 | regcache->cooked_write (regnum, val); |
a66a9c23 AC |
808 | } |
809 | ||
20aa2c60 PA |
810 | /* See regcache.h. */ |
811 | ||
812 | void | |
813 | regcache_raw_set_cached_value (struct regcache *regcache, int regnum, | |
814 | const gdb_byte *buf) | |
815 | { | |
ef79d9a3 YQ |
816 | regcache->raw_set_cached_value (regnum, buf); |
817 | } | |
818 | ||
819 | void | |
820 | regcache::raw_set_cached_value (int regnum, const gdb_byte *buf) | |
821 | { | |
822 | memcpy (register_buffer (regnum), buf, | |
823 | m_descr->sizeof_register[regnum]); | |
824 | m_register_status[regnum] = REG_VALID; | |
20aa2c60 PA |
825 | } |
826 | ||
61a0eb5b | 827 | void |
2d522557 AC |
828 | regcache_raw_write (struct regcache *regcache, int regnum, |
829 | const gdb_byte *buf) | |
ef79d9a3 YQ |
830 | { |
831 | gdb_assert (regcache != NULL && buf != NULL); | |
832 | regcache->raw_write (regnum, buf); | |
833 | } | |
834 | ||
835 | void | |
836 | regcache::raw_write (int regnum, const gdb_byte *buf) | |
61a0eb5b | 837 | { |
594f7785 | 838 | |
ef79d9a3 | 839 | gdb_assert (buf != NULL); |
4e888c28 | 840 | assert_regnum (regnum); |
ef79d9a3 | 841 | gdb_assert (!m_readonly_p); |
3fadccb3 | 842 | |
3fadccb3 AC |
843 | /* On the sparc, writing %g0 is a no-op, so we don't even want to |
844 | change the registers array if something writes to this register. */ | |
ef79d9a3 | 845 | if (gdbarch_cannot_store_register (arch (), regnum)) |
3fadccb3 AC |
846 | return; |
847 | ||
3fadccb3 | 848 | /* If we have a valid copy of the register, and new value == old |
0df8b418 | 849 | value, then don't bother doing the actual store. */ |
ef79d9a3 YQ |
850 | if (get_register_status (regnum) == REG_VALID |
851 | && (memcmp (register_buffer (regnum), buf, | |
852 | m_descr->sizeof_register[regnum]) == 0)) | |
3fadccb3 AC |
853 | return; |
854 | ||
ef79d9a3 YQ |
855 | target_prepare_to_store (this); |
856 | raw_set_cached_value (regnum, buf); | |
b94ade42 | 857 | |
b292235f TT |
858 | /* Invalidate the register after it is written, in case of a |
859 | failure. */ | |
860 | regcache_invalidator invalidator (this, regnum); | |
b94ade42 | 861 | |
ef79d9a3 | 862 | target_store_registers (this, regnum); |
594f7785 | 863 | |
b292235f TT |
864 | /* The target did not throw an error so we can discard invalidating |
865 | the register. */ | |
866 | invalidator.release (); | |
61a0eb5b AC |
867 | } |
868 | ||
68365089 | 869 | void |
2d522557 AC |
870 | regcache_cooked_write (struct regcache *regcache, int regnum, |
871 | const gdb_byte *buf) | |
ef79d9a3 YQ |
872 | { |
873 | regcache->cooked_write (regnum, buf); | |
874 | } | |
875 | ||
876 | void | |
877 | regcache::cooked_write (int regnum, const gdb_byte *buf) | |
68365089 | 878 | { |
d138e37a | 879 | gdb_assert (regnum >= 0); |
ef79d9a3 | 880 | gdb_assert (regnum < m_descr->nr_cooked_registers); |
d999647b | 881 | if (regnum < num_raw_registers ()) |
ef79d9a3 | 882 | raw_write (regnum, buf); |
d138e37a | 883 | else |
ef79d9a3 | 884 | gdbarch_pseudo_register_write (m_descr->gdbarch, this, |
d8124050 | 885 | regnum, buf); |
61a0eb5b AC |
886 | } |
887 | ||
06c0b04e AC |
888 | /* Perform a partial register transfer using a read, modify, write |
889 | operation. */ | |
890 | ||
891 | typedef void (regcache_read_ftype) (struct regcache *regcache, int regnum, | |
892 | void *buf); | |
893 | typedef void (regcache_write_ftype) (struct regcache *regcache, int regnum, | |
894 | const void *buf); | |
895 | ||
ef79d9a3 | 896 | enum register_status |
849d0ba8 YQ |
897 | readable_regcache::read_part (int regnum, int offset, int len, void *in, |
898 | bool is_raw) | |
899 | { | |
900 | struct gdbarch *gdbarch = arch (); | |
901 | gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum)); | |
902 | ||
903 | gdb_assert (in != NULL); | |
904 | gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]); | |
905 | gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]); | |
906 | /* Something to do? */ | |
907 | if (offset + len == 0) | |
908 | return REG_VALID; | |
909 | /* Read (when needed) ... */ | |
910 | enum register_status status; | |
911 | ||
912 | if (is_raw) | |
913 | status = raw_read (regnum, reg); | |
914 | else | |
915 | status = cooked_read (regnum, reg); | |
916 | if (status != REG_VALID) | |
917 | return status; | |
918 | ||
919 | /* ... modify ... */ | |
920 | memcpy (in, reg + offset, len); | |
921 | ||
922 | return REG_VALID; | |
923 | } | |
924 | ||
925 | enum register_status | |
926 | regcache::write_part (int regnum, int offset, int len, | |
d3037ba6 | 927 | const void *out, bool is_raw) |
ef79d9a3 YQ |
928 | { |
929 | struct gdbarch *gdbarch = arch (); | |
9890e433 | 930 | gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum)); |
123f5f96 | 931 | |
849d0ba8 | 932 | gdb_assert (out != NULL); |
ef79d9a3 YQ |
933 | gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]); |
934 | gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]); | |
06c0b04e AC |
935 | /* Something to do? */ |
936 | if (offset + len == 0) | |
05d1431c | 937 | return REG_VALID; |
0df8b418 | 938 | /* Read (when needed) ... */ |
849d0ba8 | 939 | if (offset > 0 |
ef79d9a3 | 940 | || offset + len < m_descr->sizeof_register[regnum]) |
06c0b04e | 941 | { |
05d1431c PA |
942 | enum register_status status; |
943 | ||
d3037ba6 YQ |
944 | if (is_raw) |
945 | status = raw_read (regnum, reg); | |
946 | else | |
947 | status = cooked_read (regnum, reg); | |
05d1431c PA |
948 | if (status != REG_VALID) |
949 | return status; | |
06c0b04e | 950 | } |
849d0ba8 YQ |
951 | |
952 | memcpy (reg + offset, out, len); | |
06c0b04e | 953 | /* ... write (when needed). */ |
849d0ba8 YQ |
954 | if (is_raw) |
955 | raw_write (regnum, reg); | |
956 | else | |
957 | cooked_write (regnum, reg); | |
05d1431c PA |
958 | |
959 | return REG_VALID; | |
06c0b04e AC |
960 | } |
961 | ||
05d1431c | 962 | enum register_status |
06c0b04e | 963 | regcache_raw_read_part (struct regcache *regcache, int regnum, |
2d522557 | 964 | int offset, int len, gdb_byte *buf) |
06c0b04e | 965 | { |
ef79d9a3 YQ |
966 | return regcache->raw_read_part (regnum, offset, len, buf); |
967 | } | |
123f5f96 | 968 | |
ef79d9a3 | 969 | enum register_status |
849d0ba8 | 970 | readable_regcache::raw_read_part (int regnum, int offset, int len, gdb_byte *buf) |
ef79d9a3 | 971 | { |
4e888c28 | 972 | assert_regnum (regnum); |
849d0ba8 | 973 | return read_part (regnum, offset, len, buf, true); |
06c0b04e AC |
974 | } |
975 | ||
976 | void | |
977 | regcache_raw_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 978 | int offset, int len, const gdb_byte *buf) |
06c0b04e | 979 | { |
ef79d9a3 YQ |
980 | regcache->raw_write_part (regnum, offset, len, buf); |
981 | } | |
123f5f96 | 982 | |
ef79d9a3 YQ |
983 | void |
984 | regcache::raw_write_part (int regnum, int offset, int len, | |
985 | const gdb_byte *buf) | |
986 | { | |
4e888c28 | 987 | assert_regnum (regnum); |
849d0ba8 | 988 | write_part (regnum, offset, len, buf, true); |
06c0b04e AC |
989 | } |
990 | ||
05d1431c | 991 | enum register_status |
06c0b04e | 992 | regcache_cooked_read_part (struct regcache *regcache, int regnum, |
2d522557 | 993 | int offset, int len, gdb_byte *buf) |
06c0b04e | 994 | { |
ef79d9a3 YQ |
995 | return regcache->cooked_read_part (regnum, offset, len, buf); |
996 | } | |
123f5f96 | 997 | |
ef79d9a3 YQ |
998 | |
999 | enum register_status | |
849d0ba8 YQ |
1000 | readable_regcache::cooked_read_part (int regnum, int offset, int len, |
1001 | gdb_byte *buf) | |
ef79d9a3 YQ |
1002 | { |
1003 | gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers); | |
849d0ba8 | 1004 | return read_part (regnum, offset, len, buf, false); |
06c0b04e AC |
1005 | } |
1006 | ||
1007 | void | |
1008 | regcache_cooked_write_part (struct regcache *regcache, int regnum, | |
2d522557 | 1009 | int offset, int len, const gdb_byte *buf) |
06c0b04e | 1010 | { |
ef79d9a3 YQ |
1011 | regcache->cooked_write_part (regnum, offset, len, buf); |
1012 | } | |
123f5f96 | 1013 | |
ef79d9a3 YQ |
1014 | void |
1015 | regcache::cooked_write_part (int regnum, int offset, int len, | |
1016 | const gdb_byte *buf) | |
1017 | { | |
1018 | gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers); | |
849d0ba8 | 1019 | write_part (regnum, offset, len, buf, false); |
06c0b04e | 1020 | } |
32178cab | 1021 | |
a16d75cc | 1022 | /* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */ |
9a661b68 MK |
1023 | |
1024 | void | |
6618125d | 1025 | regcache_raw_supply (struct regcache *regcache, int regnum, const void *buf) |
ef79d9a3 YQ |
1026 | { |
1027 | gdb_assert (regcache != NULL); | |
1028 | regcache->raw_supply (regnum, buf); | |
1029 | } | |
1030 | ||
1031 | void | |
1032 | regcache::raw_supply (int regnum, const void *buf) | |
9a661b68 MK |
1033 | { |
1034 | void *regbuf; | |
1035 | size_t size; | |
1036 | ||
4e888c28 | 1037 | assert_regnum (regnum); |
ef79d9a3 | 1038 | gdb_assert (!m_readonly_p); |
9a661b68 | 1039 | |
ef79d9a3 YQ |
1040 | regbuf = register_buffer (regnum); |
1041 | size = m_descr->sizeof_register[regnum]; | |
9a661b68 MK |
1042 | |
1043 | if (buf) | |
ee99023e PA |
1044 | { |
1045 | memcpy (regbuf, buf, size); | |
ef79d9a3 | 1046 | m_register_status[regnum] = REG_VALID; |
ee99023e | 1047 | } |
9a661b68 | 1048 | else |
ee99023e PA |
1049 | { |
1050 | /* This memset not strictly necessary, but better than garbage | |
1051 | in case the register value manages to escape somewhere (due | |
1052 | to a bug, no less). */ | |
1053 | memset (regbuf, 0, size); | |
ef79d9a3 | 1054 | m_register_status[regnum] = REG_UNAVAILABLE; |
ee99023e | 1055 | } |
9a661b68 MK |
1056 | } |
1057 | ||
b057297a AH |
1058 | /* Supply register REGNUM to REGCACHE. Value to supply is an integer stored at |
1059 | address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED. If | |
1060 | the register size is greater than ADDR_LEN, then the integer will be sign or | |
1061 | zero extended. If the register size is smaller than the integer, then the | |
1062 | most significant bytes of the integer will be truncated. */ | |
1063 | ||
1064 | void | |
1065 | regcache::raw_supply_integer (int regnum, const gdb_byte *addr, int addr_len, | |
1066 | bool is_signed) | |
1067 | { | |
1068 | enum bfd_endian byte_order = gdbarch_byte_order (m_descr->gdbarch); | |
1069 | gdb_byte *regbuf; | |
1070 | size_t regsize; | |
1071 | ||
4e888c28 | 1072 | assert_regnum (regnum); |
b057297a AH |
1073 | gdb_assert (!m_readonly_p); |
1074 | ||
1075 | regbuf = register_buffer (regnum); | |
1076 | regsize = m_descr->sizeof_register[regnum]; | |
1077 | ||
1078 | copy_integer_to_size (regbuf, regsize, addr, addr_len, is_signed, | |
1079 | byte_order); | |
1080 | m_register_status[regnum] = REG_VALID; | |
1081 | } | |
1082 | ||
f81fdd35 AH |
1083 | /* Supply register REGNUM with zeroed value to REGCACHE. This is not the same |
1084 | as calling raw_supply with NULL (which will set the state to | |
1085 | unavailable). */ | |
1086 | ||
1087 | void | |
1088 | regcache::raw_supply_zeroed (int regnum) | |
1089 | { | |
1090 | void *regbuf; | |
1091 | size_t size; | |
1092 | ||
4e888c28 | 1093 | assert_regnum (regnum); |
f81fdd35 AH |
1094 | gdb_assert (!m_readonly_p); |
1095 | ||
1096 | regbuf = register_buffer (regnum); | |
1097 | size = m_descr->sizeof_register[regnum]; | |
1098 | ||
1099 | memset (regbuf, 0, size); | |
1100 | m_register_status[regnum] = REG_VALID; | |
1101 | } | |
1102 | ||
9a661b68 MK |
1103 | /* Collect register REGNUM from REGCACHE and store its contents in BUF. */ |
1104 | ||
1105 | void | |
6618125d | 1106 | regcache_raw_collect (const struct regcache *regcache, int regnum, void *buf) |
ef79d9a3 YQ |
1107 | { |
1108 | gdb_assert (regcache != NULL && buf != NULL); | |
1109 | regcache->raw_collect (regnum, buf); | |
1110 | } | |
1111 | ||
1112 | void | |
1113 | regcache::raw_collect (int regnum, void *buf) const | |
9a661b68 MK |
1114 | { |
1115 | const void *regbuf; | |
1116 | size_t size; | |
1117 | ||
ef79d9a3 | 1118 | gdb_assert (buf != NULL); |
4e888c28 | 1119 | assert_regnum (regnum); |
9a661b68 | 1120 | |
ef79d9a3 YQ |
1121 | regbuf = register_buffer (regnum); |
1122 | size = m_descr->sizeof_register[regnum]; | |
9a661b68 MK |
1123 | memcpy (buf, regbuf, size); |
1124 | } | |
1125 | ||
0b309272 AA |
1126 | /* Transfer a single or all registers belonging to a certain register |
1127 | set to or from a buffer. This is the main worker function for | |
1128 | regcache_supply_regset and regcache_collect_regset. */ | |
1129 | ||
b057297a AH |
1130 | /* Collect register REGNUM from REGCACHE. Store collected value as an integer |
1131 | at address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED. | |
1132 | If ADDR_LEN is greater than the register size, then the integer will be sign | |
1133 | or zero extended. If ADDR_LEN is smaller than the register size, then the | |
1134 | most significant bytes of the integer will be truncated. */ | |
1135 | ||
1136 | void | |
1137 | regcache::raw_collect_integer (int regnum, gdb_byte *addr, int addr_len, | |
1138 | bool is_signed) const | |
1139 | { | |
1140 | enum bfd_endian byte_order = gdbarch_byte_order (m_descr->gdbarch); | |
1141 | const gdb_byte *regbuf; | |
1142 | size_t regsize; | |
1143 | ||
4e888c28 | 1144 | assert_regnum (regnum); |
b057297a AH |
1145 | |
1146 | regbuf = register_buffer (regnum); | |
1147 | regsize = m_descr->sizeof_register[regnum]; | |
1148 | ||
1149 | copy_integer_to_size (addr, addr_len, regbuf, regsize, is_signed, | |
1150 | byte_order); | |
1151 | } | |
1152 | ||
ef79d9a3 YQ |
1153 | void |
1154 | regcache::transfer_regset (const struct regset *regset, | |
1155 | struct regcache *out_regcache, | |
1156 | int regnum, const void *in_buf, | |
1157 | void *out_buf, size_t size) const | |
0b309272 AA |
1158 | { |
1159 | const struct regcache_map_entry *map; | |
1160 | int offs = 0, count; | |
1161 | ||
19ba03f4 SM |
1162 | for (map = (const struct regcache_map_entry *) regset->regmap; |
1163 | (count = map->count) != 0; | |
1164 | map++) | |
0b309272 AA |
1165 | { |
1166 | int regno = map->regno; | |
1167 | int slot_size = map->size; | |
1168 | ||
1169 | if (slot_size == 0 && regno != REGCACHE_MAP_SKIP) | |
ef79d9a3 | 1170 | slot_size = m_descr->sizeof_register[regno]; |
0b309272 AA |
1171 | |
1172 | if (regno == REGCACHE_MAP_SKIP | |
1173 | || (regnum != -1 | |
1174 | && (regnum < regno || regnum >= regno + count))) | |
1175 | offs += count * slot_size; | |
1176 | ||
1177 | else if (regnum == -1) | |
1178 | for (; count--; regno++, offs += slot_size) | |
1179 | { | |
1180 | if (offs + slot_size > size) | |
1181 | break; | |
1182 | ||
1183 | if (out_buf) | |
ef79d9a3 | 1184 | raw_collect (regno, (gdb_byte *) out_buf + offs); |
0b309272 | 1185 | else |
ef79d9a3 YQ |
1186 | out_regcache->raw_supply (regno, in_buf |
1187 | ? (const gdb_byte *) in_buf + offs | |
1188 | : NULL); | |
0b309272 AA |
1189 | } |
1190 | else | |
1191 | { | |
1192 | /* Transfer a single register and return. */ | |
1193 | offs += (regnum - regno) * slot_size; | |
1194 | if (offs + slot_size > size) | |
1195 | return; | |
1196 | ||
1197 | if (out_buf) | |
ef79d9a3 | 1198 | raw_collect (regnum, (gdb_byte *) out_buf + offs); |
0b309272 | 1199 | else |
ef79d9a3 YQ |
1200 | out_regcache->raw_supply (regnum, in_buf |
1201 | ? (const gdb_byte *) in_buf + offs | |
1202 | : NULL); | |
0b309272 AA |
1203 | return; |
1204 | } | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | /* Supply register REGNUM from BUF to REGCACHE, using the register map | |
1209 | in REGSET. If REGNUM is -1, do this for all registers in REGSET. | |
1210 | If BUF is NULL, set the register(s) to "unavailable" status. */ | |
1211 | ||
1212 | void | |
1213 | regcache_supply_regset (const struct regset *regset, | |
1214 | struct regcache *regcache, | |
1215 | int regnum, const void *buf, size_t size) | |
1216 | { | |
ef79d9a3 YQ |
1217 | regcache->supply_regset (regset, regnum, buf, size); |
1218 | } | |
1219 | ||
1220 | void | |
1221 | regcache::supply_regset (const struct regset *regset, | |
1222 | int regnum, const void *buf, size_t size) | |
1223 | { | |
1224 | transfer_regset (regset, this, regnum, buf, NULL, size); | |
0b309272 AA |
1225 | } |
1226 | ||
1227 | /* Collect register REGNUM from REGCACHE to BUF, using the register | |
1228 | map in REGSET. If REGNUM is -1, do this for all registers in | |
1229 | REGSET. */ | |
1230 | ||
1231 | void | |
1232 | regcache_collect_regset (const struct regset *regset, | |
1233 | const struct regcache *regcache, | |
1234 | int regnum, void *buf, size_t size) | |
1235 | { | |
ef79d9a3 YQ |
1236 | regcache->collect_regset (regset, regnum, buf, size); |
1237 | } | |
1238 | ||
1239 | void | |
1240 | regcache::collect_regset (const struct regset *regset, | |
1241 | int regnum, void *buf, size_t size) const | |
1242 | { | |
1243 | transfer_regset (regset, NULL, regnum, NULL, buf, size); | |
0b309272 AA |
1244 | } |
1245 | ||
193cb69f | 1246 | |
515630c5 | 1247 | /* Special handling for register PC. */ |
32178cab MS |
1248 | |
1249 | CORE_ADDR | |
515630c5 | 1250 | regcache_read_pc (struct regcache *regcache) |
32178cab | 1251 | { |
ac7936df | 1252 | struct gdbarch *gdbarch = regcache->arch (); |
61a1198a | 1253 | |
32178cab MS |
1254 | CORE_ADDR pc_val; |
1255 | ||
61a1198a UW |
1256 | if (gdbarch_read_pc_p (gdbarch)) |
1257 | pc_val = gdbarch_read_pc (gdbarch, regcache); | |
cde9ea48 | 1258 | /* Else use per-frame method on get_current_frame. */ |
214e098a | 1259 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
cde9ea48 | 1260 | { |
61a1198a | 1261 | ULONGEST raw_val; |
123f5f96 | 1262 | |
05d1431c PA |
1263 | if (regcache_cooked_read_unsigned (regcache, |
1264 | gdbarch_pc_regnum (gdbarch), | |
1265 | &raw_val) == REG_UNAVAILABLE) | |
1266 | throw_error (NOT_AVAILABLE_ERROR, _("PC register is not available")); | |
1267 | ||
214e098a | 1268 | pc_val = gdbarch_addr_bits_remove (gdbarch, raw_val); |
cde9ea48 AC |
1269 | } |
1270 | else | |
515630c5 UW |
1271 | internal_error (__FILE__, __LINE__, |
1272 | _("regcache_read_pc: Unable to find PC")); | |
32178cab MS |
1273 | return pc_val; |
1274 | } | |
1275 | ||
32178cab | 1276 | void |
515630c5 | 1277 | regcache_write_pc (struct regcache *regcache, CORE_ADDR pc) |
32178cab | 1278 | { |
ac7936df | 1279 | struct gdbarch *gdbarch = regcache->arch (); |
61a1198a | 1280 | |
61a1198a UW |
1281 | if (gdbarch_write_pc_p (gdbarch)) |
1282 | gdbarch_write_pc (gdbarch, regcache, pc); | |
214e098a | 1283 | else if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1284 | regcache_cooked_write_unsigned (regcache, |
214e098a | 1285 | gdbarch_pc_regnum (gdbarch), pc); |
61a1198a UW |
1286 | else |
1287 | internal_error (__FILE__, __LINE__, | |
515630c5 | 1288 | _("regcache_write_pc: Unable to update PC")); |
edb3359d DJ |
1289 | |
1290 | /* Writing the PC (for instance, from "load") invalidates the | |
1291 | current frame. */ | |
1292 | reinit_frame_cache (); | |
32178cab MS |
1293 | } |
1294 | ||
d999647b | 1295 | int |
31716595 | 1296 | reg_buffer::num_raw_registers () const |
d999647b YQ |
1297 | { |
1298 | return gdbarch_num_regs (arch ()); | |
1299 | } | |
1300 | ||
ed771251 | 1301 | void |
ef79d9a3 | 1302 | regcache::debug_print_register (const char *func, int regno) |
ed771251 | 1303 | { |
ef79d9a3 | 1304 | struct gdbarch *gdbarch = arch (); |
ed771251 AH |
1305 | |
1306 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1307 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) | |
1308 | && gdbarch_register_name (gdbarch, regno) != NULL | |
1309 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
1310 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
1311 | gdbarch_register_name (gdbarch, regno)); | |
1312 | else | |
1313 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1314 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) | |
1315 | { | |
1316 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1317 | int size = register_size (gdbarch, regno); | |
ef79d9a3 | 1318 | gdb_byte *buf = register_buffer (regno); |
ed771251 AH |
1319 | |
1320 | fprintf_unfiltered (gdb_stdlog, " = "); | |
1321 | for (int i = 0; i < size; i++) | |
1322 | { | |
1323 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1324 | } | |
1325 | if (size <= sizeof (LONGEST)) | |
1326 | { | |
1327 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); | |
1328 | ||
1329 | fprintf_unfiltered (gdb_stdlog, " %s %s", | |
1330 | core_addr_to_string_nz (val), plongest (val)); | |
1331 | } | |
1332 | } | |
1333 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1334 | } | |
32178cab | 1335 | |
705152c5 | 1336 | static void |
0b39b52e | 1337 | reg_flush_command (const char *command, int from_tty) |
705152c5 MS |
1338 | { |
1339 | /* Force-flush the register cache. */ | |
1340 | registers_changed (); | |
1341 | if (from_tty) | |
a3f17187 | 1342 | printf_filtered (_("Register cache flushed.\n")); |
705152c5 MS |
1343 | } |
1344 | ||
ef79d9a3 YQ |
1345 | void |
1346 | regcache::dump (ui_file *file, enum regcache_dump_what what_to_dump) | |
af030b9a | 1347 | { |
ef79d9a3 | 1348 | struct gdbarch *gdbarch = m_descr->gdbarch; |
af030b9a AC |
1349 | int regnum; |
1350 | int footnote_nr = 0; | |
af030b9a AC |
1351 | int footnote_register_offset = 0; |
1352 | int footnote_register_type_name_null = 0; | |
1353 | long register_offset = 0; | |
af030b9a | 1354 | |
ef79d9a3 | 1355 | gdb_assert (m_descr->nr_cooked_registers |
214e098a UW |
1356 | == (gdbarch_num_regs (gdbarch) |
1357 | + gdbarch_num_pseudo_regs (gdbarch))); | |
af030b9a | 1358 | |
ef79d9a3 | 1359 | for (regnum = -1; regnum < m_descr->nr_cooked_registers; regnum++) |
af030b9a AC |
1360 | { |
1361 | /* Name. */ | |
1362 | if (regnum < 0) | |
1363 | fprintf_unfiltered (file, " %-10s", "Name"); | |
1364 | else | |
1365 | { | |
214e098a | 1366 | const char *p = gdbarch_register_name (gdbarch, regnum); |
123f5f96 | 1367 | |
af030b9a AC |
1368 | if (p == NULL) |
1369 | p = ""; | |
1370 | else if (p[0] == '\0') | |
1371 | p = "''"; | |
1372 | fprintf_unfiltered (file, " %-10s", p); | |
1373 | } | |
1374 | ||
1375 | /* Number. */ | |
1376 | if (regnum < 0) | |
1377 | fprintf_unfiltered (file, " %4s", "Nr"); | |
1378 | else | |
1379 | fprintf_unfiltered (file, " %4d", regnum); | |
1380 | ||
1381 | /* Relative number. */ | |
1382 | if (regnum < 0) | |
1383 | fprintf_unfiltered (file, " %4s", "Rel"); | |
214e098a | 1384 | else if (regnum < gdbarch_num_regs (gdbarch)) |
af030b9a AC |
1385 | fprintf_unfiltered (file, " %4d", regnum); |
1386 | else | |
f57d151a | 1387 | fprintf_unfiltered (file, " %4d", |
214e098a | 1388 | (regnum - gdbarch_num_regs (gdbarch))); |
af030b9a AC |
1389 | |
1390 | /* Offset. */ | |
1391 | if (regnum < 0) | |
1392 | fprintf_unfiltered (file, " %6s ", "Offset"); | |
1393 | else | |
1394 | { | |
1395 | fprintf_unfiltered (file, " %6ld", | |
ef79d9a3 YQ |
1396 | m_descr->register_offset[regnum]); |
1397 | if (register_offset != m_descr->register_offset[regnum] | |
d3b22ed5 | 1398 | || (regnum > 0 |
ef79d9a3 YQ |
1399 | && (m_descr->register_offset[regnum] |
1400 | != (m_descr->register_offset[regnum - 1] | |
1401 | + m_descr->sizeof_register[regnum - 1]))) | |
d3b22ed5 | 1402 | ) |
af030b9a AC |
1403 | { |
1404 | if (!footnote_register_offset) | |
1405 | footnote_register_offset = ++footnote_nr; | |
1406 | fprintf_unfiltered (file, "*%d", footnote_register_offset); | |
1407 | } | |
1408 | else | |
1409 | fprintf_unfiltered (file, " "); | |
ef79d9a3 YQ |
1410 | register_offset = (m_descr->register_offset[regnum] |
1411 | + m_descr->sizeof_register[regnum]); | |
af030b9a AC |
1412 | } |
1413 | ||
1414 | /* Size. */ | |
1415 | if (regnum < 0) | |
1416 | fprintf_unfiltered (file, " %5s ", "Size"); | |
1417 | else | |
ef79d9a3 | 1418 | fprintf_unfiltered (file, " %5ld", m_descr->sizeof_register[regnum]); |
af030b9a AC |
1419 | |
1420 | /* Type. */ | |
b59ff9d5 AC |
1421 | { |
1422 | const char *t; | |
6c3e20f1 | 1423 | std::string name_holder; |
123f5f96 | 1424 | |
b59ff9d5 AC |
1425 | if (regnum < 0) |
1426 | t = "Type"; | |
1427 | else | |
1428 | { | |
1429 | static const char blt[] = "builtin_type"; | |
123f5f96 | 1430 | |
ef79d9a3 | 1431 | t = TYPE_NAME (register_type (arch (), regnum)); |
b59ff9d5 AC |
1432 | if (t == NULL) |
1433 | { | |
b59ff9d5 AC |
1434 | if (!footnote_register_type_name_null) |
1435 | footnote_register_type_name_null = ++footnote_nr; | |
6c3e20f1 TT |
1436 | name_holder = string_printf ("*%d", |
1437 | footnote_register_type_name_null); | |
1438 | t = name_holder.c_str (); | |
b59ff9d5 AC |
1439 | } |
1440 | /* Chop a leading builtin_type. */ | |
61012eef | 1441 | if (startswith (t, blt)) |
b59ff9d5 AC |
1442 | t += strlen (blt); |
1443 | } | |
1444 | fprintf_unfiltered (file, " %-15s", t); | |
1445 | } | |
1446 | ||
1447 | /* Leading space always present. */ | |
1448 | fprintf_unfiltered (file, " "); | |
af030b9a AC |
1449 | |
1450 | /* Value, raw. */ | |
1451 | if (what_to_dump == regcache_dump_raw) | |
1452 | { | |
1453 | if (regnum < 0) | |
1454 | fprintf_unfiltered (file, "Raw value"); | |
d999647b | 1455 | else if (regnum >= num_raw_registers ()) |
af030b9a | 1456 | fprintf_unfiltered (file, "<cooked>"); |
ef79d9a3 | 1457 | else if (get_register_status (regnum) == REG_UNKNOWN) |
af030b9a | 1458 | fprintf_unfiltered (file, "<invalid>"); |
ef79d9a3 | 1459 | else if (get_register_status (regnum) == REG_UNAVAILABLE) |
ee99023e | 1460 | fprintf_unfiltered (file, "<unavailable>"); |
af030b9a AC |
1461 | else |
1462 | { | |
50d6adef AH |
1463 | raw_update (regnum); |
1464 | print_hex_chars (file, register_buffer (regnum), | |
ef79d9a3 | 1465 | m_descr->sizeof_register[regnum], |
30a25466 | 1466 | gdbarch_byte_order (gdbarch), true); |
af030b9a AC |
1467 | } |
1468 | } | |
1469 | ||
1470 | /* Value, cooked. */ | |
1471 | if (what_to_dump == regcache_dump_cooked) | |
1472 | { | |
1473 | if (regnum < 0) | |
1474 | fprintf_unfiltered (file, "Cooked value"); | |
1475 | else | |
1476 | { | |
50d6adef | 1477 | const gdb_byte *buf = NULL; |
05d1431c | 1478 | enum register_status status; |
50d6adef AH |
1479 | struct value *value = NULL; |
1480 | ||
d999647b | 1481 | if (regnum < num_raw_registers ()) |
50d6adef AH |
1482 | { |
1483 | raw_update (regnum); | |
1484 | status = get_register_status (regnum); | |
1485 | buf = register_buffer (regnum); | |
1486 | } | |
1487 | else | |
1488 | { | |
1489 | value = cooked_read_value (regnum); | |
1490 | ||
1491 | if (!value_optimized_out (value) | |
1492 | && value_entirely_available (value)) | |
1493 | { | |
1494 | status = REG_VALID; | |
1495 | buf = value_contents_all (value); | |
1496 | } | |
1497 | else | |
1498 | status = REG_UNAVAILABLE; | |
1499 | } | |
05d1431c | 1500 | |
05d1431c PA |
1501 | if (status == REG_UNKNOWN) |
1502 | fprintf_unfiltered (file, "<invalid>"); | |
1503 | else if (status == REG_UNAVAILABLE) | |
1504 | fprintf_unfiltered (file, "<unavailable>"); | |
1505 | else | |
d3eaaf66 | 1506 | print_hex_chars (file, buf, |
ef79d9a3 | 1507 | m_descr->sizeof_register[regnum], |
30a25466 | 1508 | gdbarch_byte_order (gdbarch), true); |
50d6adef AH |
1509 | |
1510 | if (value != NULL) | |
1511 | { | |
1512 | release_value (value); | |
1513 | value_free (value); | |
1514 | } | |
af030b9a AC |
1515 | } |
1516 | } | |
1517 | ||
b59ff9d5 AC |
1518 | /* Group members. */ |
1519 | if (what_to_dump == regcache_dump_groups) | |
1520 | { | |
1521 | if (regnum < 0) | |
1522 | fprintf_unfiltered (file, "Groups"); | |
1523 | else | |
1524 | { | |
b59ff9d5 | 1525 | const char *sep = ""; |
6c7d17ba | 1526 | struct reggroup *group; |
123f5f96 | 1527 | |
6c7d17ba AC |
1528 | for (group = reggroup_next (gdbarch, NULL); |
1529 | group != NULL; | |
1530 | group = reggroup_next (gdbarch, group)) | |
b59ff9d5 | 1531 | { |
6c7d17ba | 1532 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
b59ff9d5 | 1533 | { |
3e43a32a MS |
1534 | fprintf_unfiltered (file, |
1535 | "%s%s", sep, reggroup_name (group)); | |
b59ff9d5 AC |
1536 | sep = ","; |
1537 | } | |
1538 | } | |
1539 | } | |
1540 | } | |
1541 | ||
c21236dc PA |
1542 | /* Remote packet configuration. */ |
1543 | if (what_to_dump == regcache_dump_remote) | |
1544 | { | |
1545 | if (regnum < 0) | |
1546 | { | |
1547 | fprintf_unfiltered (file, "Rmt Nr g/G Offset"); | |
1548 | } | |
d999647b | 1549 | else if (regnum < num_raw_registers ()) |
c21236dc PA |
1550 | { |
1551 | int pnum, poffset; | |
1552 | ||
ef79d9a3 | 1553 | if (remote_register_number_and_offset (arch (), regnum, |
c21236dc PA |
1554 | &pnum, &poffset)) |
1555 | fprintf_unfiltered (file, "%7d %11d", pnum, poffset); | |
1556 | } | |
1557 | } | |
1558 | ||
af030b9a AC |
1559 | fprintf_unfiltered (file, "\n"); |
1560 | } | |
1561 | ||
af030b9a AC |
1562 | if (footnote_register_offset) |
1563 | fprintf_unfiltered (file, "*%d: Inconsistent register offsets.\n", | |
1564 | footnote_register_offset); | |
1565 | if (footnote_register_type_name_null) | |
1566 | fprintf_unfiltered (file, | |
1567 | "*%d: Register type's name NULL.\n", | |
1568 | footnote_register_type_name_null); | |
af030b9a AC |
1569 | } |
1570 | ||
1571 | static void | |
4e001312 | 1572 | regcache_print (const char *args, enum regcache_dump_what what_to_dump) |
af030b9a | 1573 | { |
ed4227b7 PA |
1574 | /* Where to send output. */ |
1575 | stdio_file file; | |
1576 | ui_file *out; | |
1577 | ||
af030b9a | 1578 | if (args == NULL) |
ed4227b7 | 1579 | out = gdb_stdout; |
af030b9a AC |
1580 | else |
1581 | { | |
d7e74731 | 1582 | if (!file.open (args, "w")) |
e2e0b3e5 | 1583 | perror_with_name (_("maintenance print architecture")); |
ed4227b7 PA |
1584 | out = &file; |
1585 | } | |
1586 | ||
1587 | if (target_has_registers) | |
1588 | get_current_regcache ()->dump (out, what_to_dump); | |
1589 | else | |
1590 | { | |
1591 | /* For the benefit of "maint print registers" & co when | |
1592 | debugging an executable, allow dumping a regcache even when | |
1593 | there is no thread selected / no registers. */ | |
f26ae15b | 1594 | regcache dummy_regs (target_gdbarch ()); |
ed4227b7 | 1595 | dummy_regs.dump (out, what_to_dump); |
af030b9a AC |
1596 | } |
1597 | } | |
1598 | ||
1599 | static void | |
4e001312 | 1600 | maintenance_print_registers (const char *args, int from_tty) |
af030b9a AC |
1601 | { |
1602 | regcache_print (args, regcache_dump_none); | |
1603 | } | |
1604 | ||
1605 | static void | |
4e001312 | 1606 | maintenance_print_raw_registers (const char *args, int from_tty) |
af030b9a AC |
1607 | { |
1608 | regcache_print (args, regcache_dump_raw); | |
1609 | } | |
1610 | ||
1611 | static void | |
4e001312 | 1612 | maintenance_print_cooked_registers (const char *args, int from_tty) |
af030b9a AC |
1613 | { |
1614 | regcache_print (args, regcache_dump_cooked); | |
1615 | } | |
1616 | ||
b59ff9d5 | 1617 | static void |
4e001312 | 1618 | maintenance_print_register_groups (const char *args, int from_tty) |
b59ff9d5 AC |
1619 | { |
1620 | regcache_print (args, regcache_dump_groups); | |
1621 | } | |
1622 | ||
c21236dc | 1623 | static void |
4e001312 | 1624 | maintenance_print_remote_registers (const char *args, int from_tty) |
c21236dc PA |
1625 | { |
1626 | regcache_print (args, regcache_dump_remote); | |
1627 | } | |
1628 | ||
8248946c YQ |
1629 | #if GDB_SELF_TEST |
1630 | #include "selftest.h" | |
1b30aaa5 YQ |
1631 | #include "selftest-arch.h" |
1632 | #include "gdbthread.h" | |
ec7a5fcb | 1633 | #include "target-float.h" |
8248946c YQ |
1634 | |
1635 | namespace selftests { | |
1636 | ||
e521e87e | 1637 | class regcache_access : public regcache |
8248946c | 1638 | { |
e521e87e YQ |
1639 | public: |
1640 | ||
1641 | /* Return the number of elements in current_regcache. */ | |
1642 | ||
1643 | static size_t | |
1644 | current_regcache_size () | |
1645 | { | |
1646 | return std::distance (regcache::current_regcache.begin (), | |
1647 | regcache::current_regcache.end ()); | |
1648 | } | |
1649 | }; | |
8248946c YQ |
1650 | |
1651 | static void | |
1652 | current_regcache_test (void) | |
1653 | { | |
1654 | /* It is empty at the start. */ | |
e521e87e | 1655 | SELF_CHECK (regcache_access::current_regcache_size () == 0); |
8248946c YQ |
1656 | |
1657 | ptid_t ptid1 (1), ptid2 (2), ptid3 (3); | |
1658 | ||
1659 | /* Get regcache from ptid1, a new regcache is added to | |
1660 | current_regcache. */ | |
1661 | regcache *regcache = get_thread_arch_aspace_regcache (ptid1, | |
1662 | target_gdbarch (), | |
1663 | NULL); | |
1664 | ||
1665 | SELF_CHECK (regcache != NULL); | |
1666 | SELF_CHECK (regcache->ptid () == ptid1); | |
e521e87e | 1667 | SELF_CHECK (regcache_access::current_regcache_size () == 1); |
8248946c YQ |
1668 | |
1669 | /* Get regcache from ptid2, a new regcache is added to | |
1670 | current_regcache. */ | |
1671 | regcache = get_thread_arch_aspace_regcache (ptid2, | |
1672 | target_gdbarch (), | |
1673 | NULL); | |
1674 | SELF_CHECK (regcache != NULL); | |
1675 | SELF_CHECK (regcache->ptid () == ptid2); | |
e521e87e | 1676 | SELF_CHECK (regcache_access::current_regcache_size () == 2); |
8248946c YQ |
1677 | |
1678 | /* Get regcache from ptid3, a new regcache is added to | |
1679 | current_regcache. */ | |
1680 | regcache = get_thread_arch_aspace_regcache (ptid3, | |
1681 | target_gdbarch (), | |
1682 | NULL); | |
1683 | SELF_CHECK (regcache != NULL); | |
1684 | SELF_CHECK (regcache->ptid () == ptid3); | |
e521e87e | 1685 | SELF_CHECK (regcache_access::current_regcache_size () == 3); |
8248946c YQ |
1686 | |
1687 | /* Get regcache from ptid2 again, nothing is added to | |
1688 | current_regcache. */ | |
1689 | regcache = get_thread_arch_aspace_regcache (ptid2, | |
1690 | target_gdbarch (), | |
1691 | NULL); | |
1692 | SELF_CHECK (regcache != NULL); | |
1693 | SELF_CHECK (regcache->ptid () == ptid2); | |
e521e87e | 1694 | SELF_CHECK (regcache_access::current_regcache_size () == 3); |
8248946c YQ |
1695 | |
1696 | /* Mark ptid2 is changed, so regcache of ptid2 should be removed from | |
1697 | current_regcache. */ | |
1698 | registers_changed_ptid (ptid2); | |
e521e87e | 1699 | SELF_CHECK (regcache_access::current_regcache_size () == 2); |
8248946c YQ |
1700 | } |
1701 | ||
1b30aaa5 YQ |
1702 | static void test_target_fetch_registers (target_ops *self, regcache *regs, |
1703 | int regno); | |
1704 | static void test_target_store_registers (target_ops *self, regcache *regs, | |
1705 | int regno); | |
1706 | static enum target_xfer_status | |
1707 | test_target_xfer_partial (struct target_ops *ops, | |
1708 | enum target_object object, | |
1709 | const char *annex, gdb_byte *readbuf, | |
1710 | const gdb_byte *writebuf, | |
1711 | ULONGEST offset, ULONGEST len, | |
1712 | ULONGEST *xfered_len); | |
1713 | ||
1714 | class target_ops_no_register : public test_target_ops | |
1715 | { | |
1716 | public: | |
1717 | target_ops_no_register () | |
1718 | : test_target_ops {} | |
1719 | { | |
1720 | to_fetch_registers = test_target_fetch_registers; | |
1721 | to_store_registers = test_target_store_registers; | |
1722 | to_xfer_partial = test_target_xfer_partial; | |
1723 | ||
1724 | to_data = this; | |
1725 | } | |
1726 | ||
1727 | void reset () | |
1728 | { | |
1729 | fetch_registers_called = 0; | |
1730 | store_registers_called = 0; | |
1731 | xfer_partial_called = 0; | |
1732 | } | |
1733 | ||
1734 | unsigned int fetch_registers_called = 0; | |
1735 | unsigned int store_registers_called = 0; | |
1736 | unsigned int xfer_partial_called = 0; | |
1737 | }; | |
1738 | ||
1739 | static void | |
1740 | test_target_fetch_registers (target_ops *self, regcache *regs, int regno) | |
1741 | { | |
1742 | auto ops = static_cast<target_ops_no_register *> (self->to_data); | |
1743 | ||
1744 | /* Mark register available. */ | |
1745 | regs->raw_supply_zeroed (regno); | |
1746 | ops->fetch_registers_called++; | |
1747 | } | |
1748 | ||
1749 | static void | |
1750 | test_target_store_registers (target_ops *self, regcache *regs, int regno) | |
1751 | { | |
1752 | auto ops = static_cast<target_ops_no_register *> (self->to_data); | |
1753 | ||
1754 | ops->store_registers_called++; | |
1755 | } | |
1756 | ||
1757 | static enum target_xfer_status | |
1758 | test_target_xfer_partial (struct target_ops *self, enum target_object object, | |
1759 | const char *annex, gdb_byte *readbuf, | |
1760 | const gdb_byte *writebuf, | |
1761 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) | |
1762 | { | |
1763 | auto ops = static_cast<target_ops_no_register *> (self->to_data); | |
1764 | ||
1765 | ops->xfer_partial_called++; | |
1766 | ||
1767 | *xfered_len = len; | |
1768 | return TARGET_XFER_OK; | |
1769 | } | |
1770 | ||
1771 | class readwrite_regcache : public regcache | |
1772 | { | |
1773 | public: | |
1774 | readwrite_regcache (struct gdbarch *gdbarch) | |
1775 | : regcache (gdbarch, nullptr, false) | |
1776 | {} | |
1777 | }; | |
1778 | ||
1779 | /* Test regcache::cooked_read gets registers from raw registers and | |
1780 | memory instead of target to_{fetch,store}_registers. */ | |
1781 | ||
1782 | static void | |
1783 | cooked_read_test (struct gdbarch *gdbarch) | |
1784 | { | |
1785 | /* Error out if debugging something, because we're going to push the | |
1786 | test target, which would pop any existing target. */ | |
1787 | if (current_target.to_stratum >= process_stratum) | |
1788 | error (_("target already pushed")); | |
1789 | ||
1790 | /* Create a mock environment. An inferior with a thread, with a | |
1791 | process_stratum target pushed. */ | |
1792 | ||
1793 | target_ops_no_register mock_target; | |
1794 | ptid_t mock_ptid (1, 1); | |
1795 | inferior mock_inferior (mock_ptid.pid ()); | |
1796 | address_space mock_aspace {}; | |
1797 | mock_inferior.gdbarch = gdbarch; | |
1798 | mock_inferior.aspace = &mock_aspace; | |
1799 | thread_info mock_thread (&mock_inferior, mock_ptid); | |
1800 | ||
1801 | scoped_restore restore_thread_list | |
1802 | = make_scoped_restore (&thread_list, &mock_thread); | |
1803 | ||
1804 | /* Add the mock inferior to the inferior list so that look ups by | |
1805 | target+ptid can find it. */ | |
1806 | scoped_restore restore_inferior_list | |
1807 | = make_scoped_restore (&inferior_list); | |
1808 | inferior_list = &mock_inferior; | |
1809 | ||
1810 | /* Switch to the mock inferior. */ | |
1811 | scoped_restore_current_inferior restore_current_inferior; | |
1812 | set_current_inferior (&mock_inferior); | |
1813 | ||
1814 | /* Push the process_stratum target so we can mock accessing | |
1815 | registers. */ | |
1816 | push_target (&mock_target); | |
1817 | ||
1818 | /* Pop it again on exit (return/exception). */ | |
1819 | struct on_exit | |
1820 | { | |
1821 | ~on_exit () | |
1822 | { | |
1823 | pop_all_targets_at_and_above (process_stratum); | |
1824 | } | |
1825 | } pop_targets; | |
1826 | ||
1827 | /* Switch to the mock thread. */ | |
1828 | scoped_restore restore_inferior_ptid | |
1829 | = make_scoped_restore (&inferior_ptid, mock_ptid); | |
1830 | ||
1831 | /* Test that read one raw register from regcache_no_target will go | |
1832 | to the target layer. */ | |
1833 | int regnum; | |
1834 | ||
1835 | /* Find a raw register which size isn't zero. */ | |
1836 | for (regnum = 0; regnum < gdbarch_num_regs (gdbarch); regnum++) | |
1837 | { | |
1838 | if (register_size (gdbarch, regnum) != 0) | |
1839 | break; | |
1840 | } | |
1841 | ||
1842 | readwrite_regcache readwrite (gdbarch); | |
1843 | gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum)); | |
1844 | ||
1845 | readwrite.raw_read (regnum, buf.data ()); | |
1846 | ||
1847 | /* raw_read calls target_fetch_registers. */ | |
1848 | SELF_CHECK (mock_target.fetch_registers_called > 0); | |
1849 | mock_target.reset (); | |
1850 | ||
1851 | /* Mark all raw registers valid, so the following raw registers | |
1852 | accesses won't go to target. */ | |
1853 | for (auto i = 0; i < gdbarch_num_regs (gdbarch); i++) | |
1854 | readwrite.raw_update (i); | |
1855 | ||
1856 | mock_target.reset (); | |
1857 | /* Then, read all raw and pseudo registers, and don't expect calling | |
1858 | to_{fetch,store}_registers. */ | |
1859 | for (int regnum = 0; | |
1860 | regnum < gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch); | |
1861 | regnum++) | |
1862 | { | |
1863 | if (register_size (gdbarch, regnum) == 0) | |
1864 | continue; | |
1865 | ||
1866 | gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum)); | |
1867 | ||
1868 | SELF_CHECK (REG_VALID == readwrite.cooked_read (regnum, buf.data ())); | |
1869 | ||
dc711524 YQ |
1870 | SELF_CHECK (mock_target.fetch_registers_called == 0); |
1871 | SELF_CHECK (mock_target.store_registers_called == 0); | |
1b30aaa5 YQ |
1872 | |
1873 | /* Some SPU pseudo registers are got via TARGET_OBJECT_SPU. */ | |
1874 | if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu) | |
1875 | SELF_CHECK (mock_target.xfer_partial_called == 0); | |
1876 | ||
1877 | mock_target.reset (); | |
1878 | } | |
a63f2d2f YQ |
1879 | |
1880 | regcache readonly (regcache::readonly, readwrite); | |
1881 | ||
1882 | /* GDB may go to target layer to fetch all registers and memory for | |
1883 | readonly regcache. */ | |
1884 | mock_target.reset (); | |
1885 | ||
1886 | for (int regnum = 0; | |
1887 | regnum < gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch); | |
1888 | regnum++) | |
1889 | { | |
a63f2d2f YQ |
1890 | if (register_size (gdbarch, regnum) == 0) |
1891 | continue; | |
1892 | ||
1893 | gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum)); | |
1894 | enum register_status status = readonly.cooked_read (regnum, | |
1895 | buf.data ()); | |
1896 | ||
1897 | if (regnum < gdbarch_num_regs (gdbarch)) | |
1898 | { | |
1899 | auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
1900 | ||
1901 | if (bfd_arch == bfd_arch_frv || bfd_arch == bfd_arch_h8300 | |
1902 | || bfd_arch == bfd_arch_m32c || bfd_arch == bfd_arch_sh | |
1903 | || bfd_arch == bfd_arch_alpha || bfd_arch == bfd_arch_v850 | |
1904 | || bfd_arch == bfd_arch_msp430 || bfd_arch == bfd_arch_mep | |
1905 | || bfd_arch == bfd_arch_mips || bfd_arch == bfd_arch_v850_rh850 | |
1906 | || bfd_arch == bfd_arch_tic6x || bfd_arch == bfd_arch_mn10300 | |
1907 | || bfd_arch == bfd_arch_rl78 || bfd_arch == bfd_arch_score) | |
1908 | { | |
1909 | /* Raw registers. If raw registers are not in save_reggroup, | |
1910 | their status are unknown. */ | |
1911 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
1912 | SELF_CHECK (status == REG_VALID); | |
1913 | else | |
1914 | SELF_CHECK (status == REG_UNKNOWN); | |
1915 | } | |
1916 | else | |
1917 | SELF_CHECK (status == REG_VALID); | |
1918 | } | |
1919 | else | |
1920 | { | |
1921 | if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup)) | |
1922 | SELF_CHECK (status == REG_VALID); | |
1923 | else | |
1924 | { | |
1925 | /* If pseudo registers are not in save_reggroup, some of | |
1926 | them can be computed from saved raw registers, but some | |
1927 | of them are unknown. */ | |
1928 | auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
1929 | ||
1930 | if (bfd_arch == bfd_arch_frv | |
1931 | || bfd_arch == bfd_arch_m32c | |
1932 | || bfd_arch == bfd_arch_mep | |
1933 | || bfd_arch == bfd_arch_sh) | |
1934 | SELF_CHECK (status == REG_VALID || status == REG_UNKNOWN); | |
1935 | else if (bfd_arch == bfd_arch_mips | |
1936 | || bfd_arch == bfd_arch_h8300) | |
1937 | SELF_CHECK (status == REG_UNKNOWN); | |
1938 | else | |
1939 | SELF_CHECK (status == REG_VALID); | |
1940 | } | |
1941 | } | |
1942 | ||
1943 | SELF_CHECK (mock_target.fetch_registers_called == 0); | |
1944 | SELF_CHECK (mock_target.store_registers_called == 0); | |
1945 | SELF_CHECK (mock_target.xfer_partial_called == 0); | |
1946 | ||
1947 | mock_target.reset (); | |
1948 | } | |
1b30aaa5 YQ |
1949 | } |
1950 | ||
ec7a5fcb YQ |
1951 | /* Test regcache::cooked_write by writing some expected contents to |
1952 | registers, and checking that contents read from registers and the | |
1953 | expected contents are the same. */ | |
1954 | ||
1955 | static void | |
1956 | cooked_write_test (struct gdbarch *gdbarch) | |
1957 | { | |
1958 | /* Error out if debugging something, because we're going to push the | |
1959 | test target, which would pop any existing target. */ | |
1960 | if (current_target.to_stratum >= process_stratum) | |
1961 | error (_("target already pushed")); | |
1962 | ||
1963 | /* Create a mock environment. A process_stratum target pushed. */ | |
1964 | ||
1965 | target_ops_no_register mock_target; | |
1966 | ||
1967 | /* Push the process_stratum target so we can mock accessing | |
1968 | registers. */ | |
1969 | push_target (&mock_target); | |
1970 | ||
1971 | /* Pop it again on exit (return/exception). */ | |
1972 | struct on_exit | |
1973 | { | |
1974 | ~on_exit () | |
1975 | { | |
1976 | pop_all_targets_at_and_above (process_stratum); | |
1977 | } | |
1978 | } pop_targets; | |
1979 | ||
1980 | readwrite_regcache readwrite (gdbarch); | |
1981 | ||
1982 | const int num_regs = (gdbarch_num_regs (gdbarch) | |
1983 | + gdbarch_num_pseudo_regs (gdbarch)); | |
1984 | ||
1985 | for (auto regnum = 0; regnum < num_regs; regnum++) | |
1986 | { | |
1987 | if (register_size (gdbarch, regnum) == 0 | |
1988 | || gdbarch_cannot_store_register (gdbarch, regnum)) | |
1989 | continue; | |
1990 | ||
1991 | auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
1992 | ||
1993 | if ((bfd_arch == bfd_arch_sparc | |
1994 | /* SPARC64_CWP_REGNUM, SPARC64_PSTATE_REGNUM, | |
1995 | SPARC64_ASI_REGNUM and SPARC64_CCR_REGNUM are hard to test. */ | |
1996 | && gdbarch_ptr_bit (gdbarch) == 64 | |
1997 | && (regnum >= gdbarch_num_regs (gdbarch) | |
1998 | && regnum <= gdbarch_num_regs (gdbarch) + 4)) | |
1999 | || (bfd_arch == bfd_arch_sh | |
2000 | /* FPSCR_C_REGNUM in sh64 is hard to test. */ | |
2001 | && gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_sh5 | |
2002 | && regnum == 243) | |
2003 | || (bfd_arch == bfd_arch_spu | |
2004 | /* SPU pseudo registers except SPU_SP_REGNUM are got by | |
2005 | TARGET_OBJECT_SPU. */ | |
2006 | && regnum >= gdbarch_num_regs (gdbarch) && regnum != 130)) | |
2007 | continue; | |
2008 | ||
2009 | std::vector<gdb_byte> expected (register_size (gdbarch, regnum), 0); | |
2010 | std::vector<gdb_byte> buf (register_size (gdbarch, regnum), 0); | |
2011 | const auto type = register_type (gdbarch, regnum); | |
2012 | ||
2013 | if (TYPE_CODE (type) == TYPE_CODE_FLT | |
2014 | || TYPE_CODE (type) == TYPE_CODE_DECFLOAT) | |
2015 | { | |
2016 | /* Generate valid float format. */ | |
2017 | target_float_from_string (expected.data (), type, "1.25"); | |
2018 | } | |
2019 | else if (TYPE_CODE (type) == TYPE_CODE_INT | |
2020 | || TYPE_CODE (type) == TYPE_CODE_ARRAY | |
2021 | || TYPE_CODE (type) == TYPE_CODE_PTR | |
2022 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
2023 | || TYPE_CODE (type) == TYPE_CODE_STRUCT) | |
2024 | { | |
2025 | if (bfd_arch == bfd_arch_ia64 | |
2026 | || (regnum >= gdbarch_num_regs (gdbarch) | |
2027 | && (bfd_arch == bfd_arch_xtensa | |
2028 | || bfd_arch == bfd_arch_bfin | |
2029 | || bfd_arch == bfd_arch_m32c | |
2030 | /* m68hc11 pseudo registers are in memory. */ | |
2031 | || bfd_arch == bfd_arch_m68hc11 | |
2032 | || bfd_arch == bfd_arch_m68hc12 | |
2033 | || bfd_arch == bfd_arch_s390)) | |
2034 | || (bfd_arch == bfd_arch_frv | |
2035 | /* FRV pseudo registers except iacc0. */ | |
2036 | && regnum > gdbarch_num_regs (gdbarch))) | |
2037 | { | |
2038 | /* Skip setting the expected values for some architecture | |
2039 | registers. */ | |
2040 | } | |
2041 | else if (bfd_arch == bfd_arch_rl78 && regnum == 40) | |
2042 | { | |
2043 | /* RL78_PC_REGNUM */ | |
2044 | for (auto j = 0; j < register_size (gdbarch, regnum) - 1; j++) | |
2045 | expected[j] = j; | |
2046 | } | |
2047 | else | |
2048 | { | |
2049 | for (auto j = 0; j < register_size (gdbarch, regnum); j++) | |
2050 | expected[j] = j; | |
2051 | } | |
2052 | } | |
2053 | else if (TYPE_CODE (type) == TYPE_CODE_FLAGS) | |
2054 | { | |
2055 | /* No idea how to test flags. */ | |
2056 | continue; | |
2057 | } | |
2058 | else | |
2059 | { | |
2060 | /* If we don't know how to create the expected value for the | |
2061 | this type, make it fail. */ | |
2062 | SELF_CHECK (0); | |
2063 | } | |
2064 | ||
2065 | readwrite.cooked_write (regnum, expected.data ()); | |
2066 | ||
2067 | SELF_CHECK (readwrite.cooked_read (regnum, buf.data ()) == REG_VALID); | |
2068 | SELF_CHECK (expected == buf); | |
2069 | } | |
2070 | } | |
2071 | ||
8248946c YQ |
2072 | } // namespace selftests |
2073 | #endif /* GDB_SELF_TEST */ | |
2074 | ||
32178cab MS |
2075 | void |
2076 | _initialize_regcache (void) | |
2077 | { | |
3e43a32a MS |
2078 | regcache_descr_handle |
2079 | = gdbarch_data_register_post_init (init_regcache_descr); | |
705152c5 | 2080 | |
f4c5303c | 2081 | observer_attach_target_changed (regcache_observer_target_changed); |
e521e87e | 2082 | observer_attach_thread_ptid_changed (regcache::regcache_thread_ptid_changed); |
f4c5303c | 2083 | |
705152c5 | 2084 | add_com ("flushregs", class_maintenance, reg_flush_command, |
1bedd215 | 2085 | _("Force gdb to flush its register cache (maintainer command)")); |
39f77062 | 2086 | |
3e43a32a MS |
2087 | add_cmd ("registers", class_maintenance, maintenance_print_registers, |
2088 | _("Print the internal register configuration.\n" | |
2089 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 2090 | add_cmd ("raw-registers", class_maintenance, |
3e43a32a MS |
2091 | maintenance_print_raw_registers, |
2092 | _("Print the internal register configuration " | |
2093 | "including raw values.\n" | |
2094 | "Takes an optional file parameter."), &maintenanceprintlist); | |
af030b9a | 2095 | add_cmd ("cooked-registers", class_maintenance, |
3e43a32a MS |
2096 | maintenance_print_cooked_registers, |
2097 | _("Print the internal register configuration " | |
2098 | "including cooked values.\n" | |
2099 | "Takes an optional file parameter."), &maintenanceprintlist); | |
b59ff9d5 | 2100 | add_cmd ("register-groups", class_maintenance, |
3e43a32a MS |
2101 | maintenance_print_register_groups, |
2102 | _("Print the internal register configuration " | |
2103 | "including each register's group.\n" | |
2104 | "Takes an optional file parameter."), | |
af030b9a | 2105 | &maintenanceprintlist); |
c21236dc PA |
2106 | add_cmd ("remote-registers", class_maintenance, |
2107 | maintenance_print_remote_registers, _("\ | |
2108 | Print the internal register configuration including each register's\n\ | |
2109 | remote register number and buffer offset in the g/G packets.\n\ | |
2110 | Takes an optional file parameter."), | |
2111 | &maintenanceprintlist); | |
1526853e | 2112 | |
8248946c | 2113 | #if GDB_SELF_TEST |
1526853e | 2114 | selftests::register_test ("current_regcache", selftests::current_regcache_test); |
1b30aaa5 YQ |
2115 | |
2116 | selftests::register_test_foreach_arch ("regcache::cooked_read_test", | |
2117 | selftests::cooked_read_test); | |
ec7a5fcb YQ |
2118 | selftests::register_test_foreach_arch ("regcache::cooked_write_test", |
2119 | selftests::cooked_write_test); | |
8248946c | 2120 | #endif |
32178cab | 2121 | } |