Commit | Line | Data |
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424163ea DJ |
1 | /* Target description support for GDB. |
2 | ||
61baf725 | 3 | Copyright (C) 2006-2017 Free Software Foundation, Inc. |
424163ea DJ |
4 | |
5 | Contributed by CodeSourcery. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
424163ea DJ |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
424163ea DJ |
21 | |
22 | #include "defs.h" | |
23 | #include "arch-utils.h" | |
23181151 | 24 | #include "gdbcmd.h" |
123dc839 DJ |
25 | #include "gdbtypes.h" |
26 | #include "reggroups.h" | |
424163ea DJ |
27 | #include "target.h" |
28 | #include "target-descriptions.h" | |
29709017 | 29 | #include "vec.h" |
123dc839 | 30 | #include "xml-support.h" |
23181151 | 31 | #include "xml-tdesc.h" |
c3f08eb7 | 32 | #include "osabi.h" |
424163ea | 33 | |
123dc839 DJ |
34 | #include "gdb_obstack.h" |
35 | #include "hashtab.h" | |
6ecd4729 | 36 | #include "inferior.h" |
25aa13e5 | 37 | #include <algorithm> |
27d41eac YQ |
38 | #include "completer.h" |
39 | #include "readline/tilde.h" /* tilde_expand */ | |
424163ea | 40 | |
6eb1e6a8 YQ |
41 | /* The interface to visit different elements of target description. */ |
42 | ||
43 | class tdesc_element_visitor | |
44 | { | |
45 | public: | |
46 | virtual void visit_pre (const target_desc *e) = 0; | |
47 | virtual void visit_post (const target_desc *e) = 0; | |
48 | ||
25aa13e5 YQ |
49 | virtual void visit_pre (const tdesc_feature *e) = 0; |
50 | virtual void visit_post (const tdesc_feature *e) = 0; | |
51 | ||
6eb1e6a8 YQ |
52 | virtual void visit (const tdesc_type *e) = 0; |
53 | virtual void visit (const tdesc_reg *e) = 0; | |
54 | }; | |
55 | ||
56 | class tdesc_element | |
57 | { | |
58 | public: | |
59 | virtual void accept (tdesc_element_visitor &v) const = 0; | |
60 | }; | |
61 | ||
424163ea DJ |
62 | /* Types. */ |
63 | ||
29709017 DJ |
64 | typedef struct property |
65 | { | |
23181151 DJ |
66 | char *key; |
67 | char *value; | |
29709017 DJ |
68 | } property_s; |
69 | DEF_VEC_O(property_s); | |
70 | ||
123dc839 DJ |
71 | /* An individual register from a target description. */ |
72 | ||
6eb1e6a8 | 73 | typedef struct tdesc_reg : tdesc_element |
123dc839 | 74 | { |
72ddacb7 YQ |
75 | tdesc_reg (struct tdesc_feature *feature, const char *name_, |
76 | int regnum, int save_restore_, const char *group_, | |
77 | int bitsize_, const char *type_) | |
78 | : name (xstrdup (name_)), target_regnum (regnum), | |
79 | save_restore (save_restore_), | |
80 | group (group_ != NULL ? xstrdup (group_) : NULL), | |
81 | bitsize (bitsize_), | |
82 | type (type_ != NULL ? xstrdup (type_) : xstrdup ("<unknown>")) | |
83 | { | |
84 | /* If the register's type is target-defined, look it up now. We may not | |
85 | have easy access to the containing feature when we want it later. */ | |
86 | tdesc_type = tdesc_named_type (feature, type); | |
87 | } | |
88 | ||
6eb1e6a8 | 89 | virtual ~tdesc_reg () |
72ddacb7 YQ |
90 | { |
91 | xfree (name); | |
92 | xfree (type); | |
93 | xfree (group); | |
94 | } | |
95 | ||
96 | /* Disable copying. */ | |
97 | tdesc_reg (const tdesc_reg &) = delete; | |
98 | tdesc_reg &operator= (const tdesc_reg &) = delete; | |
99 | ||
123dc839 DJ |
100 | /* The name of this register. In standard features, it may be |
101 | recognized by the architecture support code, or it may be purely | |
102 | for the user. */ | |
103 | char *name; | |
104 | ||
105 | /* The register number used by this target to refer to this | |
106 | register. This is used for remote p/P packets and to determine | |
107 | the ordering of registers in the remote g/G packets. */ | |
108 | long target_regnum; | |
109 | ||
110 | /* If this flag is set, GDB should save and restore this register | |
111 | around calls to an inferior function. */ | |
112 | int save_restore; | |
113 | ||
114 | /* The name of the register group containing this register, or NULL | |
115 | if the group should be automatically determined from the | |
116 | register's type. If this is "general", "float", or "vector", the | |
117 | corresponding "info" command should display this register's | |
118 | value. It can be an arbitrary string, but should be limited to | |
119 | alphanumeric characters and internal hyphens. Currently other | |
120 | strings are ignored (treated as NULL). */ | |
121 | char *group; | |
122 | ||
123 | /* The size of the register, in bits. */ | |
124 | int bitsize; | |
125 | ||
126 | /* The type of the register. This string corresponds to either | |
127 | a named type from the target description or a predefined | |
128 | type from GDB. */ | |
129 | char *type; | |
130 | ||
131 | /* The target-described type corresponding to TYPE, if found. */ | |
ad068eab | 132 | struct tdesc_type *tdesc_type; |
6eb1e6a8 YQ |
133 | |
134 | void accept (tdesc_element_visitor &v) const override | |
135 | { | |
136 | v.visit (this); | |
137 | } | |
138 | ||
27d41eac YQ |
139 | bool operator== (const tdesc_reg &other) const |
140 | { | |
141 | return (streq (name, other.name) | |
142 | && target_regnum == other.target_regnum | |
143 | && save_restore == other.save_restore | |
144 | && bitsize == other.bitsize | |
145 | && (group == other.group || streq (group, other.group)) | |
146 | && streq (type, other.type)); | |
147 | } | |
148 | ||
149 | bool operator!= (const tdesc_reg &other) const | |
150 | { | |
151 | return !(*this == other); | |
152 | } | |
123dc839 DJ |
153 | } *tdesc_reg_p; |
154 | DEF_VEC_P(tdesc_reg_p); | |
155 | ||
156 | /* A named type from a target description. */ | |
ad068eab UW |
157 | |
158 | typedef struct tdesc_type_field | |
159 | { | |
160 | char *name; | |
161 | struct tdesc_type *type; | |
81516450 DE |
162 | /* For non-enum-values, either both are -1 (non-bitfield), or both are |
163 | not -1 (bitfield). For enum values, start is the value (which could be | |
164 | -1), end is -1. */ | |
f5dff777 | 165 | int start, end; |
ad068eab UW |
166 | } tdesc_type_field; |
167 | DEF_VEC_O(tdesc_type_field); | |
168 | ||
52059ffd TT |
169 | enum tdesc_type_kind |
170 | { | |
171 | /* Predefined types. */ | |
81516450 | 172 | TDESC_TYPE_BOOL, |
52059ffd TT |
173 | TDESC_TYPE_INT8, |
174 | TDESC_TYPE_INT16, | |
175 | TDESC_TYPE_INT32, | |
176 | TDESC_TYPE_INT64, | |
177 | TDESC_TYPE_INT128, | |
178 | TDESC_TYPE_UINT8, | |
179 | TDESC_TYPE_UINT16, | |
180 | TDESC_TYPE_UINT32, | |
181 | TDESC_TYPE_UINT64, | |
182 | TDESC_TYPE_UINT128, | |
183 | TDESC_TYPE_CODE_PTR, | |
184 | TDESC_TYPE_DATA_PTR, | |
185 | TDESC_TYPE_IEEE_SINGLE, | |
186 | TDESC_TYPE_IEEE_DOUBLE, | |
187 | TDESC_TYPE_ARM_FPA_EXT, | |
188 | TDESC_TYPE_I387_EXT, | |
189 | ||
190 | /* Types defined by a target feature. */ | |
191 | TDESC_TYPE_VECTOR, | |
192 | TDESC_TYPE_STRUCT, | |
193 | TDESC_TYPE_UNION, | |
81516450 DE |
194 | TDESC_TYPE_FLAGS, |
195 | TDESC_TYPE_ENUM | |
52059ffd TT |
196 | }; |
197 | ||
6eb1e6a8 | 198 | typedef struct tdesc_type : tdesc_element |
ad068eab | 199 | { |
72ddacb7 YQ |
200 | tdesc_type (const char *name_, enum tdesc_type_kind kind_) |
201 | : name (xstrdup (name_)), kind (kind_) | |
202 | { | |
203 | memset (&u, 0, sizeof (u)); | |
204 | } | |
205 | ||
6eb1e6a8 | 206 | virtual ~tdesc_type () |
72ddacb7 YQ |
207 | { |
208 | switch (kind) | |
209 | { | |
210 | case TDESC_TYPE_STRUCT: | |
211 | case TDESC_TYPE_UNION: | |
212 | case TDESC_TYPE_FLAGS: | |
213 | case TDESC_TYPE_ENUM: | |
214 | { | |
215 | struct tdesc_type_field *f; | |
216 | int ix; | |
217 | ||
218 | for (ix = 0; | |
219 | VEC_iterate (tdesc_type_field, u.u.fields, ix, f); | |
220 | ix++) | |
221 | xfree (f->name); | |
222 | ||
223 | VEC_free (tdesc_type_field, u.u.fields); | |
224 | } | |
225 | break; | |
226 | ||
227 | default: | |
228 | break; | |
229 | } | |
230 | xfree ((char *) name); | |
231 | } | |
232 | /* Disable copying. */ | |
233 | tdesc_type (const tdesc_type &) = delete; | |
234 | tdesc_type &operator= (const tdesc_type &) = delete; | |
235 | ||
a121b7c1 PA |
236 | /* The name of this type. If this type is a built-in type, this is |
237 | a pointer to a constant string. Otherwise, it's a | |
238 | malloc-allocated string (and thus must be freed). */ | |
239 | const char *name; | |
ad068eab UW |
240 | |
241 | /* Identify the kind of this type. */ | |
52059ffd | 242 | enum tdesc_type_kind kind; |
ad068eab UW |
243 | |
244 | /* Kind-specific data. */ | |
245 | union | |
246 | { | |
247 | /* Vector type. */ | |
248 | struct | |
249 | { | |
250 | struct tdesc_type *type; | |
251 | int count; | |
252 | } v; | |
253 | ||
81516450 | 254 | /* Struct, union, flags, or enum type. */ |
ad068eab UW |
255 | struct |
256 | { | |
257 | VEC(tdesc_type_field) *fields; | |
54157a25 | 258 | int size; |
ad068eab UW |
259 | } u; |
260 | } u; | |
6eb1e6a8 YQ |
261 | |
262 | void accept (tdesc_element_visitor &v) const override | |
263 | { | |
264 | v.visit (this); | |
265 | } | |
266 | ||
27d41eac YQ |
267 | bool operator== (const tdesc_type &other) const |
268 | { | |
269 | return (streq (name, other.name) && kind == other.kind); | |
270 | } | |
271 | ||
272 | bool operator!= (const tdesc_type &other) const | |
273 | { | |
274 | return !(*this == other); | |
275 | } | |
ad068eab UW |
276 | } *tdesc_type_p; |
277 | DEF_VEC_P(tdesc_type_p); | |
123dc839 DJ |
278 | |
279 | /* A feature from a target description. Each feature is a collection | |
280 | of other elements, e.g. registers and types. */ | |
281 | ||
6eb1e6a8 | 282 | typedef struct tdesc_feature : tdesc_element |
123dc839 | 283 | { |
72ddacb7 YQ |
284 | tdesc_feature (const char *name_) |
285 | : name (xstrdup (name_)) | |
286 | {} | |
287 | ||
6eb1e6a8 | 288 | virtual ~tdesc_feature () |
72ddacb7 YQ |
289 | { |
290 | struct tdesc_reg *reg; | |
291 | struct tdesc_type *type; | |
292 | int ix; | |
293 | ||
294 | for (ix = 0; VEC_iterate (tdesc_reg_p, registers, ix, reg); ix++) | |
295 | delete reg; | |
296 | VEC_free (tdesc_reg_p, registers); | |
297 | ||
298 | for (ix = 0; VEC_iterate (tdesc_type_p, types, ix, type); ix++) | |
299 | delete type; | |
300 | VEC_free (tdesc_type_p, types); | |
301 | ||
302 | xfree (name); | |
303 | } | |
304 | ||
305 | /* Disable copying. */ | |
306 | tdesc_feature (const tdesc_feature &) = delete; | |
307 | tdesc_feature &operator= (const tdesc_feature &) = delete; | |
308 | ||
123dc839 DJ |
309 | /* The name of this feature. It may be recognized by the architecture |
310 | support code. */ | |
311 | char *name; | |
312 | ||
313 | /* The registers associated with this feature. */ | |
72ddacb7 | 314 | VEC(tdesc_reg_p) *registers = NULL; |
123dc839 DJ |
315 | |
316 | /* The types associated with this feature. */ | |
72ddacb7 | 317 | VEC(tdesc_type_p) *types = NULL; |
6eb1e6a8 YQ |
318 | |
319 | void accept (tdesc_element_visitor &v) const override | |
320 | { | |
25aa13e5 | 321 | v.visit_pre (this); |
6eb1e6a8 YQ |
322 | |
323 | struct tdesc_type *type; | |
324 | ||
325 | for (int ix = 0; | |
326 | VEC_iterate (tdesc_type_p, types, ix, type); | |
327 | ix++) | |
328 | type->accept (v); | |
329 | ||
330 | struct tdesc_reg *reg; | |
331 | ||
332 | for (int ix = 0; | |
333 | VEC_iterate (tdesc_reg_p, registers, ix, reg); | |
334 | ix++) | |
335 | reg->accept (v); | |
336 | ||
6eb1e6a8 | 337 | |
25aa13e5 YQ |
338 | v.visit_post (this); |
339 | } | |
27d41eac YQ |
340 | |
341 | bool operator== (const tdesc_feature &other) const | |
342 | { | |
343 | if (strcmp (name, other.name) != 0) | |
344 | return false; | |
345 | ||
346 | if (VEC_length (tdesc_reg_p, registers) | |
347 | != VEC_length (tdesc_reg_p, other.registers)) | |
348 | return false; | |
349 | ||
350 | struct tdesc_reg *reg; | |
351 | ||
352 | for (int ix = 0; | |
353 | VEC_iterate (tdesc_reg_p, registers, ix, reg); | |
354 | ix++) | |
355 | { | |
356 | tdesc_reg *reg2 | |
357 | = VEC_index (tdesc_reg_p, other.registers, ix); | |
358 | ||
359 | if (reg != reg2 && *reg != *reg2) | |
360 | return false; | |
361 | } | |
362 | ||
363 | if (VEC_length (tdesc_type_p, types) | |
364 | != VEC_length (tdesc_type_p, other.types)) | |
365 | return false; | |
366 | ||
367 | tdesc_type *type; | |
368 | ||
369 | for (int ix = 0; | |
370 | VEC_iterate (tdesc_type_p, types, ix, type); | |
371 | ix++) | |
372 | { | |
373 | tdesc_type *type2 | |
374 | = VEC_index (tdesc_type_p, other.types, ix); | |
375 | ||
376 | if (type != type2 && *type != *type2) | |
377 | return false; | |
378 | } | |
379 | ||
380 | return true; | |
381 | } | |
382 | ||
383 | bool operator!= (const tdesc_feature &other) const | |
384 | { | |
385 | return !(*this == other); | |
386 | } | |
387 | ||
123dc839 DJ |
388 | } *tdesc_feature_p; |
389 | DEF_VEC_P(tdesc_feature_p); | |
390 | ||
e35359c5 UW |
391 | /* A compatible architecture from a target description. */ |
392 | typedef const struct bfd_arch_info *arch_p; | |
393 | DEF_VEC_P(arch_p); | |
394 | ||
123dc839 DJ |
395 | /* A target description. */ |
396 | ||
6eb1e6a8 | 397 | struct target_desc : tdesc_element |
424163ea | 398 | { |
b468ff4c YQ |
399 | target_desc () |
400 | {} | |
401 | ||
6eb1e6a8 | 402 | virtual ~target_desc () |
b468ff4c YQ |
403 | { |
404 | struct tdesc_feature *feature; | |
405 | struct property *prop; | |
406 | int ix; | |
407 | ||
408 | for (ix = 0; | |
409 | VEC_iterate (tdesc_feature_p, features, ix, feature); | |
410 | ix++) | |
411 | delete feature; | |
412 | VEC_free (tdesc_feature_p, features); | |
413 | ||
414 | for (ix = 0; | |
415 | VEC_iterate (property_s, properties, ix, prop); | |
416 | ix++) | |
417 | { | |
418 | xfree (prop->key); | |
419 | xfree (prop->value); | |
420 | } | |
421 | ||
422 | VEC_free (property_s, properties); | |
423 | VEC_free (arch_p, compatible); | |
424 | } | |
425 | ||
426 | target_desc (const target_desc &) = delete; | |
427 | void operator= (const target_desc &) = delete; | |
428 | ||
23181151 | 429 | /* The architecture reported by the target, if any. */ |
b468ff4c | 430 | const struct bfd_arch_info *arch = NULL; |
23181151 | 431 | |
08d16641 PA |
432 | /* The osabi reported by the target, if any; GDB_OSABI_UNKNOWN |
433 | otherwise. */ | |
b468ff4c | 434 | enum gdb_osabi osabi = GDB_OSABI_UNKNOWN; |
08d16641 | 435 | |
e35359c5 | 436 | /* The list of compatible architectures reported by the target. */ |
b468ff4c | 437 | VEC(arch_p) *compatible = NULL; |
e35359c5 | 438 | |
29709017 | 439 | /* Any architecture-specific properties specified by the target. */ |
b468ff4c | 440 | VEC(property_s) *properties = NULL; |
123dc839 DJ |
441 | |
442 | /* The features associated with this target. */ | |
b468ff4c | 443 | VEC(tdesc_feature_p) *features = NULL; |
6eb1e6a8 YQ |
444 | |
445 | void accept (tdesc_element_visitor &v) const override | |
446 | { | |
447 | v.visit_pre (this); | |
448 | ||
449 | struct tdesc_feature *feature; | |
450 | ||
451 | for (int ix = 0; | |
452 | VEC_iterate (tdesc_feature_p, features, ix, feature); | |
453 | ix++) | |
454 | feature->accept (v); | |
455 | ||
456 | v.visit_post (this); | |
457 | } | |
27d41eac YQ |
458 | |
459 | bool operator== (const target_desc &other) const | |
460 | { | |
461 | if (arch != other.arch) | |
462 | return false; | |
463 | ||
464 | if (osabi != other.osabi) | |
465 | return false; | |
466 | ||
467 | if (VEC_length (tdesc_feature_p, features) | |
468 | != VEC_length (tdesc_feature_p, other.features)) | |
469 | return false; | |
470 | ||
471 | struct tdesc_feature *feature; | |
472 | ||
473 | for (int ix = 0; | |
474 | VEC_iterate (tdesc_feature_p, features, ix, feature); | |
475 | ix++) | |
476 | { | |
477 | struct tdesc_feature *feature2 | |
478 | = VEC_index (tdesc_feature_p, other.features, ix); | |
479 | ||
480 | if (feature != feature2 && *feature != *feature2) | |
481 | return false; | |
482 | } | |
483 | ||
484 | return true; | |
485 | } | |
486 | ||
487 | bool operator!= (const target_desc &other) const | |
488 | { | |
489 | return !(*this == other); | |
490 | } | |
123dc839 DJ |
491 | }; |
492 | ||
493 | /* Per-architecture data associated with a target description. The | |
494 | target description may be shared by multiple architectures, but | |
495 | this data is private to one gdbarch. */ | |
496 | ||
ad068eab UW |
497 | typedef struct tdesc_arch_reg |
498 | { | |
499 | struct tdesc_reg *reg; | |
500 | struct type *type; | |
501 | } tdesc_arch_reg; | |
502 | DEF_VEC_O(tdesc_arch_reg); | |
503 | ||
123dc839 DJ |
504 | struct tdesc_arch_data |
505 | { | |
ad068eab | 506 | /* A list of register/type pairs, indexed by GDB's internal register number. |
123dc839 DJ |
507 | During initialization of the gdbarch this list is used to store |
508 | registers which the architecture assigns a fixed register number. | |
509 | Registers which are NULL in this array, or off the end, are | |
510 | treated as zero-sized and nameless (i.e. placeholders in the | |
511 | numbering). */ | |
ad068eab | 512 | VEC(tdesc_arch_reg) *arch_regs; |
123dc839 DJ |
513 | |
514 | /* Functions which report the register name, type, and reggroups for | |
515 | pseudo-registers. */ | |
516 | gdbarch_register_name_ftype *pseudo_register_name; | |
517 | gdbarch_register_type_ftype *pseudo_register_type; | |
518 | gdbarch_register_reggroup_p_ftype *pseudo_register_reggroup_p; | |
424163ea DJ |
519 | }; |
520 | ||
6ecd4729 PA |
521 | /* Info about an inferior's target description. There's one of these |
522 | for each inferior. */ | |
424163ea | 523 | |
6ecd4729 PA |
524 | struct target_desc_info |
525 | { | |
526 | /* A flag indicating that a description has already been fetched | |
527 | from the target, so it should not be queried again. */ | |
528 | ||
529 | int fetched; | |
424163ea | 530 | |
6ecd4729 PA |
531 | /* The description fetched from the target, or NULL if the target |
532 | did not supply any description. Only valid when | |
533 | target_desc_fetched is set. Only the description initialization | |
534 | code should access this; normally, the description should be | |
535 | accessed through the gdbarch object. */ | |
424163ea | 536 | |
6ecd4729 | 537 | const struct target_desc *tdesc; |
424163ea | 538 | |
6ecd4729 PA |
539 | /* The filename to read a target description from, as set by "set |
540 | tdesc filename ..." */ | |
424163ea | 541 | |
6ecd4729 PA |
542 | char *filename; |
543 | }; | |
23181151 | 544 | |
6ecd4729 PA |
545 | /* Get the inferior INF's target description info, allocating one on |
546 | the stop if necessary. */ | |
23181151 | 547 | |
6ecd4729 PA |
548 | static struct target_desc_info * |
549 | get_tdesc_info (struct inferior *inf) | |
550 | { | |
551 | if (inf->tdesc_info == NULL) | |
552 | inf->tdesc_info = XCNEW (struct target_desc_info); | |
553 | return inf->tdesc_info; | |
554 | } | |
23181151 | 555 | |
123dc839 DJ |
556 | /* A handle for architecture-specific data associated with the |
557 | target description (see struct tdesc_arch_data). */ | |
558 | ||
559 | static struct gdbarch_data *tdesc_data; | |
560 | ||
6ecd4729 PA |
561 | /* See target-descriptions.h. */ |
562 | ||
563 | int | |
564 | target_desc_info_from_user_p (struct target_desc_info *info) | |
565 | { | |
566 | return info != NULL && info->filename != NULL; | |
567 | } | |
568 | ||
569 | /* See target-descriptions.h. */ | |
570 | ||
571 | void | |
572 | copy_inferior_target_desc_info (struct inferior *destinf, struct inferior *srcinf) | |
573 | { | |
574 | struct target_desc_info *src = get_tdesc_info (srcinf); | |
575 | struct target_desc_info *dest = get_tdesc_info (destinf); | |
576 | ||
577 | dest->fetched = src->fetched; | |
578 | dest->tdesc = src->tdesc; | |
579 | dest->filename = src->filename != NULL ? xstrdup (src->filename) : NULL; | |
580 | } | |
581 | ||
582 | /* See target-descriptions.h. */ | |
583 | ||
584 | void | |
585 | target_desc_info_free (struct target_desc_info *tdesc_info) | |
586 | { | |
587 | if (tdesc_info != NULL) | |
588 | { | |
589 | xfree (tdesc_info->filename); | |
590 | xfree (tdesc_info); | |
591 | } | |
592 | } | |
593 | ||
594 | /* Convenience helper macros. */ | |
595 | ||
596 | #define target_desc_fetched \ | |
597 | get_tdesc_info (current_inferior ())->fetched | |
598 | #define current_target_desc \ | |
599 | get_tdesc_info (current_inferior ())->tdesc | |
600 | #define target_description_filename \ | |
601 | get_tdesc_info (current_inferior ())->filename | |
602 | ||
603 | /* The string manipulated by the "set tdesc filename ..." command. */ | |
604 | ||
605 | static char *tdesc_filename_cmd_string; | |
606 | ||
424163ea DJ |
607 | /* Fetch the current target's description, and switch the current |
608 | architecture to one which incorporates that description. */ | |
609 | ||
610 | void | |
611 | target_find_description (void) | |
612 | { | |
613 | /* If we've already fetched a description from the target, don't do | |
614 | it again. This allows a target to fetch the description early, | |
615 | during its to_open or to_create_inferior, if it needs extra | |
616 | information about the target to initialize. */ | |
617 | if (target_desc_fetched) | |
618 | return; | |
619 | ||
620 | /* The current architecture should not have any target description | |
621 | specified. It should have been cleared, e.g. when we | |
622 | disconnected from the previous target. */ | |
f5656ead | 623 | gdb_assert (gdbarch_target_desc (target_gdbarch ()) == NULL); |
424163ea | 624 | |
23181151 DJ |
625 | /* First try to fetch an XML description from the user-specified |
626 | file. */ | |
627 | current_target_desc = NULL; | |
628 | if (target_description_filename != NULL | |
629 | && *target_description_filename != '\0') | |
630 | current_target_desc | |
631 | = file_read_description_xml (target_description_filename); | |
632 | ||
633 | /* Next try to read the description from the current target using | |
634 | target objects. */ | |
635 | if (current_target_desc == NULL) | |
636 | current_target_desc = target_read_description_xml (¤t_target); | |
637 | ||
638 | /* If that failed try a target-specific hook. */ | |
639 | if (current_target_desc == NULL) | |
640 | current_target_desc = target_read_description (¤t_target); | |
424163ea DJ |
641 | |
642 | /* If a non-NULL description was returned, then update the current | |
643 | architecture. */ | |
644 | if (current_target_desc) | |
645 | { | |
646 | struct gdbarch_info info; | |
647 | ||
648 | gdbarch_info_init (&info); | |
649 | info.target_desc = current_target_desc; | |
650 | if (!gdbarch_update_p (info)) | |
123dc839 DJ |
651 | warning (_("Architecture rejected target-supplied description")); |
652 | else | |
653 | { | |
654 | struct tdesc_arch_data *data; | |
655 | ||
19ba03f4 SM |
656 | data = ((struct tdesc_arch_data *) |
657 | gdbarch_data (target_gdbarch (), tdesc_data)); | |
123dc839 | 658 | if (tdesc_has_registers (current_target_desc) |
ad068eab | 659 | && data->arch_regs == NULL) |
123dc839 DJ |
660 | warning (_("Target-supplied registers are not supported " |
661 | "by the current architecture")); | |
662 | } | |
424163ea DJ |
663 | } |
664 | ||
665 | /* Now that we know this description is usable, record that we | |
666 | fetched it. */ | |
667 | target_desc_fetched = 1; | |
668 | } | |
669 | ||
670 | /* Discard any description fetched from the current target, and switch | |
671 | the current architecture to one with no target description. */ | |
672 | ||
673 | void | |
674 | target_clear_description (void) | |
675 | { | |
676 | struct gdbarch_info info; | |
677 | ||
678 | if (!target_desc_fetched) | |
679 | return; | |
680 | ||
681 | target_desc_fetched = 0; | |
682 | current_target_desc = NULL; | |
683 | ||
684 | gdbarch_info_init (&info); | |
685 | if (!gdbarch_update_p (info)) | |
686 | internal_error (__FILE__, __LINE__, | |
687 | _("Could not remove target-supplied description")); | |
688 | } | |
689 | ||
690 | /* Return the global current target description. This should only be | |
691 | used by gdbarch initialization code; most access should be through | |
692 | an existing gdbarch. */ | |
693 | ||
694 | const struct target_desc * | |
695 | target_current_description (void) | |
696 | { | |
697 | if (target_desc_fetched) | |
698 | return current_target_desc; | |
699 | ||
700 | return NULL; | |
701 | } | |
e35359c5 UW |
702 | |
703 | /* Return non-zero if this target description is compatible | |
704 | with the given BFD architecture. */ | |
705 | ||
706 | int | |
707 | tdesc_compatible_p (const struct target_desc *target_desc, | |
708 | const struct bfd_arch_info *arch) | |
709 | { | |
710 | const struct bfd_arch_info *compat; | |
711 | int ix; | |
712 | ||
713 | for (ix = 0; VEC_iterate (arch_p, target_desc->compatible, ix, compat); | |
714 | ix++) | |
715 | { | |
716 | if (compat == arch | |
717 | || arch->compatible (arch, compat) | |
718 | || compat->compatible (compat, arch)) | |
719 | return 1; | |
720 | } | |
721 | ||
722 | return 0; | |
723 | } | |
23181151 DJ |
724 | \f |
725 | ||
123dc839 | 726 | /* Direct accessors for target descriptions. */ |
424163ea | 727 | |
29709017 DJ |
728 | /* Return the string value of a property named KEY, or NULL if the |
729 | property was not specified. */ | |
730 | ||
731 | const char * | |
732 | tdesc_property (const struct target_desc *target_desc, const char *key) | |
733 | { | |
734 | struct property *prop; | |
735 | int ix; | |
736 | ||
737 | for (ix = 0; VEC_iterate (property_s, target_desc->properties, ix, prop); | |
738 | ix++) | |
739 | if (strcmp (prop->key, key) == 0) | |
740 | return prop->value; | |
741 | ||
742 | return NULL; | |
743 | } | |
744 | ||
23181151 DJ |
745 | /* Return the BFD architecture associated with this target |
746 | description, or NULL if no architecture was specified. */ | |
747 | ||
748 | const struct bfd_arch_info * | |
749 | tdesc_architecture (const struct target_desc *target_desc) | |
750 | { | |
751 | return target_desc->arch; | |
752 | } | |
08d16641 PA |
753 | |
754 | /* Return the OSABI associated with this target description, or | |
755 | GDB_OSABI_UNKNOWN if no osabi was specified. */ | |
756 | ||
757 | enum gdb_osabi | |
758 | tdesc_osabi (const struct target_desc *target_desc) | |
759 | { | |
760 | return target_desc->osabi; | |
761 | } | |
762 | ||
23181151 DJ |
763 | \f |
764 | ||
123dc839 DJ |
765 | /* Return 1 if this target description includes any registers. */ |
766 | ||
767 | int | |
768 | tdesc_has_registers (const struct target_desc *target_desc) | |
769 | { | |
770 | int ix; | |
771 | struct tdesc_feature *feature; | |
772 | ||
773 | if (target_desc == NULL) | |
774 | return 0; | |
775 | ||
776 | for (ix = 0; | |
777 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
778 | ix++) | |
779 | if (! VEC_empty (tdesc_reg_p, feature->registers)) | |
780 | return 1; | |
781 | ||
782 | return 0; | |
783 | } | |
784 | ||
785 | /* Return the feature with the given name, if present, or NULL if | |
786 | the named feature is not found. */ | |
787 | ||
788 | const struct tdesc_feature * | |
789 | tdesc_find_feature (const struct target_desc *target_desc, | |
790 | const char *name) | |
791 | { | |
792 | int ix; | |
793 | struct tdesc_feature *feature; | |
794 | ||
795 | for (ix = 0; | |
796 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
797 | ix++) | |
798 | if (strcmp (feature->name, name) == 0) | |
799 | return feature; | |
800 | ||
801 | return NULL; | |
802 | } | |
803 | ||
804 | /* Return the name of FEATURE. */ | |
805 | ||
806 | const char * | |
807 | tdesc_feature_name (const struct tdesc_feature *feature) | |
808 | { | |
809 | return feature->name; | |
810 | } | |
811 | ||
ad068eab UW |
812 | /* Predefined types. */ |
813 | static struct tdesc_type tdesc_predefined_types[] = | |
81adfced | 814 | { |
81516450 | 815 | { "bool", TDESC_TYPE_BOOL }, |
ad068eab UW |
816 | { "int8", TDESC_TYPE_INT8 }, |
817 | { "int16", TDESC_TYPE_INT16 }, | |
818 | { "int32", TDESC_TYPE_INT32 }, | |
819 | { "int64", TDESC_TYPE_INT64 }, | |
820 | { "int128", TDESC_TYPE_INT128 }, | |
821 | { "uint8", TDESC_TYPE_UINT8 }, | |
822 | { "uint16", TDESC_TYPE_UINT16 }, | |
823 | { "uint32", TDESC_TYPE_UINT32 }, | |
824 | { "uint64", TDESC_TYPE_UINT64 }, | |
825 | { "uint128", TDESC_TYPE_UINT128 }, | |
826 | { "code_ptr", TDESC_TYPE_CODE_PTR }, | |
827 | { "data_ptr", TDESC_TYPE_DATA_PTR }, | |
828 | { "ieee_single", TDESC_TYPE_IEEE_SINGLE }, | |
829 | { "ieee_double", TDESC_TYPE_IEEE_DOUBLE }, | |
9fd3625f | 830 | { "arm_fpa_ext", TDESC_TYPE_ARM_FPA_EXT }, |
a6f5ef51 | 831 | { "i387_ext", TDESC_TYPE_I387_EXT } |
ad068eab | 832 | }; |
81adfced | 833 | |
81516450 DE |
834 | /* Lookup a predefined type. */ |
835 | ||
836 | static struct tdesc_type * | |
837 | tdesc_predefined_type (enum tdesc_type_kind kind) | |
838 | { | |
839 | int ix; | |
840 | struct tdesc_type *type; | |
841 | ||
842 | for (ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++) | |
843 | if (tdesc_predefined_types[ix].kind == kind) | |
844 | return &tdesc_predefined_types[ix]; | |
845 | ||
846 | gdb_assert_not_reached ("bad predefined tdesc type"); | |
847 | } | |
848 | ||
f49ff000 | 849 | /* See arch/tdesc.h. */ |
123dc839 | 850 | |
ad068eab | 851 | struct tdesc_type * |
123dc839 DJ |
852 | tdesc_named_type (const struct tdesc_feature *feature, const char *id) |
853 | { | |
854 | int ix; | |
ad068eab | 855 | struct tdesc_type *type; |
123dc839 DJ |
856 | |
857 | /* First try target-defined types. */ | |
ad068eab UW |
858 | for (ix = 0; VEC_iterate (tdesc_type_p, feature->types, ix, type); ix++) |
859 | if (strcmp (type->name, id) == 0) | |
860 | return type; | |
123dc839 | 861 | |
81adfced DJ |
862 | /* Next try the predefined types. */ |
863 | for (ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++) | |
864 | if (strcmp (tdesc_predefined_types[ix].name, id) == 0) | |
ad068eab | 865 | return &tdesc_predefined_types[ix]; |
123dc839 DJ |
866 | |
867 | return NULL; | |
868 | } | |
ad068eab | 869 | |
9fd3625f L |
870 | /* Lookup type associated with ID. */ |
871 | ||
872 | struct type * | |
873 | tdesc_find_type (struct gdbarch *gdbarch, const char *id) | |
874 | { | |
875 | struct tdesc_arch_reg *reg; | |
876 | struct tdesc_arch_data *data; | |
877 | int i, num_regs; | |
878 | ||
19ba03f4 | 879 | data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); |
9fd3625f L |
880 | num_regs = VEC_length (tdesc_arch_reg, data->arch_regs); |
881 | for (i = 0; i < num_regs; i++) | |
882 | { | |
883 | reg = VEC_index (tdesc_arch_reg, data->arch_regs, i); | |
884 | if (reg->reg | |
885 | && reg->reg->tdesc_type | |
886 | && reg->type | |
887 | && strcmp (id, reg->reg->tdesc_type->name) == 0) | |
888 | return reg->type; | |
889 | } | |
890 | ||
891 | return NULL; | |
892 | } | |
893 | ||
ad068eab UW |
894 | /* Construct, if necessary, and return the GDB type implementing target |
895 | type TDESC_TYPE for architecture GDBARCH. */ | |
896 | ||
897 | static struct type * | |
898 | tdesc_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *tdesc_type) | |
899 | { | |
9fd3625f L |
900 | struct type *type; |
901 | ||
ad068eab UW |
902 | switch (tdesc_type->kind) |
903 | { | |
904 | /* Predefined types. */ | |
81516450 DE |
905 | case TDESC_TYPE_BOOL: |
906 | return builtin_type (gdbarch)->builtin_bool; | |
907 | ||
ad068eab | 908 | case TDESC_TYPE_INT8: |
df4df182 | 909 | return builtin_type (gdbarch)->builtin_int8; |
ad068eab UW |
910 | |
911 | case TDESC_TYPE_INT16: | |
df4df182 | 912 | return builtin_type (gdbarch)->builtin_int16; |
ad068eab UW |
913 | |
914 | case TDESC_TYPE_INT32: | |
df4df182 | 915 | return builtin_type (gdbarch)->builtin_int32; |
ad068eab UW |
916 | |
917 | case TDESC_TYPE_INT64: | |
df4df182 | 918 | return builtin_type (gdbarch)->builtin_int64; |
ad068eab UW |
919 | |
920 | case TDESC_TYPE_INT128: | |
df4df182 | 921 | return builtin_type (gdbarch)->builtin_int128; |
ad068eab UW |
922 | |
923 | case TDESC_TYPE_UINT8: | |
df4df182 | 924 | return builtin_type (gdbarch)->builtin_uint8; |
ad068eab UW |
925 | |
926 | case TDESC_TYPE_UINT16: | |
df4df182 | 927 | return builtin_type (gdbarch)->builtin_uint16; |
ad068eab UW |
928 | |
929 | case TDESC_TYPE_UINT32: | |
df4df182 | 930 | return builtin_type (gdbarch)->builtin_uint32; |
ad068eab UW |
931 | |
932 | case TDESC_TYPE_UINT64: | |
df4df182 | 933 | return builtin_type (gdbarch)->builtin_uint64; |
ad068eab UW |
934 | |
935 | case TDESC_TYPE_UINT128: | |
df4df182 | 936 | return builtin_type (gdbarch)->builtin_uint128; |
ad068eab UW |
937 | |
938 | case TDESC_TYPE_CODE_PTR: | |
939 | return builtin_type (gdbarch)->builtin_func_ptr; | |
940 | ||
941 | case TDESC_TYPE_DATA_PTR: | |
942 | return builtin_type (gdbarch)->builtin_data_ptr; | |
943 | ||
9fd3625f L |
944 | default: |
945 | break; | |
946 | } | |
947 | ||
948 | type = tdesc_find_type (gdbarch, tdesc_type->name); | |
949 | if (type) | |
950 | return type; | |
951 | ||
952 | switch (tdesc_type->kind) | |
953 | { | |
ad068eab | 954 | case TDESC_TYPE_IEEE_SINGLE: |
e9bb382b | 955 | return arch_float_type (gdbarch, -1, "builtin_type_ieee_single", |
27067745 | 956 | floatformats_ieee_single); |
ad068eab UW |
957 | |
958 | case TDESC_TYPE_IEEE_DOUBLE: | |
e9bb382b | 959 | return arch_float_type (gdbarch, -1, "builtin_type_ieee_double", |
27067745 | 960 | floatformats_ieee_double); |
ad068eab UW |
961 | |
962 | case TDESC_TYPE_ARM_FPA_EXT: | |
e9bb382b | 963 | return arch_float_type (gdbarch, -1, "builtin_type_arm_ext", |
27067745 | 964 | floatformats_arm_ext); |
ad068eab | 965 | |
9fd3625f L |
966 | case TDESC_TYPE_I387_EXT: |
967 | return arch_float_type (gdbarch, -1, "builtin_type_i387_ext", | |
968 | floatformats_i387_ext); | |
969 | ||
ad068eab UW |
970 | /* Types defined by a target feature. */ |
971 | case TDESC_TYPE_VECTOR: | |
972 | { | |
973 | struct type *type, *field_type; | |
974 | ||
975 | field_type = tdesc_gdb_type (gdbarch, tdesc_type->u.v.type); | |
976 | type = init_vector_type (field_type, tdesc_type->u.v.count); | |
977 | TYPE_NAME (type) = xstrdup (tdesc_type->name); | |
978 | ||
979 | return type; | |
980 | } | |
981 | ||
f5dff777 DJ |
982 | case TDESC_TYPE_STRUCT: |
983 | { | |
984 | struct type *type, *field_type; | |
985 | struct tdesc_type_field *f; | |
986 | int ix; | |
987 | ||
988 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
989 | TYPE_NAME (type) = xstrdup (tdesc_type->name); | |
990 | TYPE_TAG_NAME (type) = TYPE_NAME (type); | |
991 | ||
992 | for (ix = 0; | |
993 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
994 | ix++) | |
995 | { | |
81516450 | 996 | if (f->start != -1 && f->end != -1) |
f5dff777 DJ |
997 | { |
998 | /* Bitfield. */ | |
999 | struct field *fld; | |
1000 | struct type *field_type; | |
1001 | int bitsize, total_size; | |
1002 | ||
81516450 | 1003 | /* This invariant should be preserved while creating types. */ |
f5dff777 | 1004 | gdb_assert (tdesc_type->u.u.size != 0); |
81516450 DE |
1005 | if (f->type != NULL) |
1006 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
1007 | else if (tdesc_type->u.u.size > 4) | |
f5dff777 DJ |
1008 | field_type = builtin_type (gdbarch)->builtin_uint64; |
1009 | else | |
1010 | field_type = builtin_type (gdbarch)->builtin_uint32; | |
1011 | ||
1012 | fld = append_composite_type_field_raw (type, xstrdup (f->name), | |
1013 | field_type); | |
1014 | ||
1015 | /* For little-endian, BITPOS counts from the LSB of | |
1016 | the structure and marks the LSB of the field. For | |
1017 | big-endian, BITPOS counts from the MSB of the | |
1018 | structure and marks the MSB of the field. Either | |
1019 | way, it is the number of bits to the "left" of the | |
1020 | field. To calculate this in big-endian, we need | |
1021 | the total size of the structure. */ | |
1022 | bitsize = f->end - f->start + 1; | |
1023 | total_size = tdesc_type->u.u.size * TARGET_CHAR_BIT; | |
1024 | if (gdbarch_bits_big_endian (gdbarch)) | |
f41f5e61 | 1025 | SET_FIELD_BITPOS (fld[0], total_size - f->start - bitsize); |
f5dff777 | 1026 | else |
f41f5e61 | 1027 | SET_FIELD_BITPOS (fld[0], f->start); |
f5dff777 DJ |
1028 | FIELD_BITSIZE (fld[0]) = bitsize; |
1029 | } | |
1030 | else | |
1031 | { | |
81516450 | 1032 | gdb_assert (f->start == -1 && f->end == -1); |
f5dff777 DJ |
1033 | field_type = tdesc_gdb_type (gdbarch, f->type); |
1034 | append_composite_type_field (type, xstrdup (f->name), | |
1035 | field_type); | |
1036 | } | |
1037 | } | |
1038 | ||
1039 | if (tdesc_type->u.u.size != 0) | |
1040 | TYPE_LENGTH (type) = tdesc_type->u.u.size; | |
1041 | return type; | |
1042 | } | |
1043 | ||
ad068eab UW |
1044 | case TDESC_TYPE_UNION: |
1045 | { | |
1046 | struct type *type, *field_type; | |
1047 | struct tdesc_type_field *f; | |
1048 | int ix; | |
1049 | ||
e9bb382b | 1050 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
ad068eab UW |
1051 | TYPE_NAME (type) = xstrdup (tdesc_type->name); |
1052 | ||
1053 | for (ix = 0; | |
1054 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
1055 | ix++) | |
1056 | { | |
1057 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
1058 | append_composite_type_field (type, xstrdup (f->name), field_type); | |
1059 | ||
f5dff777 | 1060 | /* If any of the children of a union are vectors, flag the |
ad068eab UW |
1061 | union as a vector also. This allows e.g. a union of two |
1062 | vector types to show up automatically in "info vector". */ | |
1063 | if (TYPE_VECTOR (field_type)) | |
1064 | TYPE_VECTOR (type) = 1; | |
1065 | } | |
f5dff777 DJ |
1066 | return type; |
1067 | } | |
1068 | ||
1069 | case TDESC_TYPE_FLAGS: | |
1070 | { | |
81516450 | 1071 | struct tdesc_type_field *f; |
f5dff777 DJ |
1072 | int ix; |
1073 | ||
3494b66d | 1074 | type = arch_flags_type (gdbarch, tdesc_type->name, |
81516450 DE |
1075 | tdesc_type->u.u.size); |
1076 | for (ix = 0; | |
1077 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
1078 | ix++) | |
1079 | { | |
1080 | struct type *field_type; | |
1081 | int bitsize = f->end - f->start + 1; | |
1082 | ||
1083 | gdb_assert (f->type != NULL); | |
1084 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
1085 | append_flags_type_field (type, f->start, bitsize, | |
1086 | field_type, f->name); | |
1087 | } | |
1088 | ||
1089 | return type; | |
1090 | } | |
1091 | ||
1092 | case TDESC_TYPE_ENUM: | |
1093 | { | |
1094 | struct tdesc_type_field *f; | |
1095 | int ix; | |
1096 | ||
1097 | type = arch_type (gdbarch, TYPE_CODE_ENUM, | |
1098 | tdesc_type->u.u.size, tdesc_type->name); | |
1099 | TYPE_UNSIGNED (type) = 1; | |
f5dff777 | 1100 | for (ix = 0; |
81516450 | 1101 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); |
f5dff777 | 1102 | ix++) |
81516450 DE |
1103 | { |
1104 | struct field *fld | |
1105 | = append_composite_type_field_raw (type, xstrdup (f->name), | |
1106 | NULL); | |
1107 | ||
1108 | SET_FIELD_BITPOS (fld[0], f->start); | |
1109 | } | |
ad068eab UW |
1110 | |
1111 | return type; | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | internal_error (__FILE__, __LINE__, | |
1116 | "Type \"%s\" has an unknown kind %d", | |
1117 | tdesc_type->name, tdesc_type->kind); | |
1118 | } | |
123dc839 DJ |
1119 | \f |
1120 | ||
1121 | /* Support for registers from target descriptions. */ | |
1122 | ||
1123 | /* Construct the per-gdbarch data. */ | |
1124 | ||
1125 | static void * | |
1126 | tdesc_data_init (struct obstack *obstack) | |
1127 | { | |
1128 | struct tdesc_arch_data *data; | |
1129 | ||
1130 | data = OBSTACK_ZALLOC (obstack, struct tdesc_arch_data); | |
1131 | return data; | |
1132 | } | |
1133 | ||
1134 | /* Similar, but for the temporary copy used during architecture | |
1135 | initialization. */ | |
1136 | ||
1137 | struct tdesc_arch_data * | |
1138 | tdesc_data_alloc (void) | |
1139 | { | |
41bf6aca | 1140 | return XCNEW (struct tdesc_arch_data); |
123dc839 DJ |
1141 | } |
1142 | ||
1143 | /* Free something allocated by tdesc_data_alloc, if it is not going | |
1144 | to be used (for instance if it was unsuitable for the | |
1145 | architecture). */ | |
1146 | ||
1147 | void | |
1148 | tdesc_data_cleanup (void *data_untyped) | |
1149 | { | |
19ba03f4 | 1150 | struct tdesc_arch_data *data = (struct tdesc_arch_data *) data_untyped; |
123dc839 | 1151 | |
ad068eab | 1152 | VEC_free (tdesc_arch_reg, data->arch_regs); |
123dc839 DJ |
1153 | xfree (data); |
1154 | } | |
1155 | ||
1156 | /* Search FEATURE for a register named NAME. */ | |
1157 | ||
7cc46491 DJ |
1158 | static struct tdesc_reg * |
1159 | tdesc_find_register_early (const struct tdesc_feature *feature, | |
1160 | const char *name) | |
123dc839 DJ |
1161 | { |
1162 | int ixr; | |
1163 | struct tdesc_reg *reg; | |
1164 | ||
1165 | for (ixr = 0; | |
1166 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1167 | ixr++) | |
1168 | if (strcasecmp (reg->name, name) == 0) | |
7cc46491 | 1169 | return reg; |
123dc839 | 1170 | |
7cc46491 DJ |
1171 | return NULL; |
1172 | } | |
1173 | ||
1174 | /* Search FEATURE for a register named NAME. Assign REGNO to it. */ | |
1175 | ||
1176 | int | |
1177 | tdesc_numbered_register (const struct tdesc_feature *feature, | |
1178 | struct tdesc_arch_data *data, | |
1179 | int regno, const char *name) | |
1180 | { | |
ad068eab | 1181 | struct tdesc_arch_reg arch_reg = { 0 }; |
7cc46491 DJ |
1182 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); |
1183 | ||
1184 | if (reg == NULL) | |
1185 | return 0; | |
1186 | ||
1187 | /* Make sure the vector includes a REGNO'th element. */ | |
ad068eab UW |
1188 | while (regno >= VEC_length (tdesc_arch_reg, data->arch_regs)) |
1189 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &arch_reg); | |
1190 | ||
1191 | arch_reg.reg = reg; | |
1192 | VEC_replace (tdesc_arch_reg, data->arch_regs, regno, &arch_reg); | |
7cc46491 | 1193 | return 1; |
123dc839 DJ |
1194 | } |
1195 | ||
58d6951d DJ |
1196 | /* Search FEATURE for a register named NAME, but do not assign a fixed |
1197 | register number to it. */ | |
1198 | ||
1199 | int | |
1200 | tdesc_unnumbered_register (const struct tdesc_feature *feature, | |
1201 | const char *name) | |
1202 | { | |
1203 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
1204 | ||
1205 | if (reg == NULL) | |
1206 | return 0; | |
1207 | ||
1208 | return 1; | |
1209 | } | |
1210 | ||
7cc46491 DJ |
1211 | /* Search FEATURE for a register whose name is in NAMES and assign |
1212 | REGNO to it. */ | |
123dc839 DJ |
1213 | |
1214 | int | |
1215 | tdesc_numbered_register_choices (const struct tdesc_feature *feature, | |
1216 | struct tdesc_arch_data *data, | |
1217 | int regno, const char *const names[]) | |
1218 | { | |
1219 | int i; | |
1220 | ||
1221 | for (i = 0; names[i] != NULL; i++) | |
1222 | if (tdesc_numbered_register (feature, data, regno, names[i])) | |
1223 | return 1; | |
1224 | ||
1225 | return 0; | |
1226 | } | |
1227 | ||
7cc46491 DJ |
1228 | /* Search FEATURE for a register named NAME, and return its size in |
1229 | bits. The register must exist. */ | |
1230 | ||
1231 | int | |
1232 | tdesc_register_size (const struct tdesc_feature *feature, | |
1233 | const char *name) | |
1234 | { | |
1235 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
1236 | ||
1237 | gdb_assert (reg != NULL); | |
1238 | return reg->bitsize; | |
1239 | } | |
1240 | ||
123dc839 DJ |
1241 | /* Look up a register by its GDB internal register number. */ |
1242 | ||
ad068eab UW |
1243 | static struct tdesc_arch_reg * |
1244 | tdesc_find_arch_register (struct gdbarch *gdbarch, int regno) | |
123dc839 | 1245 | { |
123dc839 DJ |
1246 | struct tdesc_arch_data *data; |
1247 | ||
19ba03f4 | 1248 | data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); |
ad068eab UW |
1249 | if (regno < VEC_length (tdesc_arch_reg, data->arch_regs)) |
1250 | return VEC_index (tdesc_arch_reg, data->arch_regs, regno); | |
123dc839 DJ |
1251 | else |
1252 | return NULL; | |
1253 | } | |
1254 | ||
ad068eab UW |
1255 | static struct tdesc_reg * |
1256 | tdesc_find_register (struct gdbarch *gdbarch, int regno) | |
1257 | { | |
1258 | struct tdesc_arch_reg *reg = tdesc_find_arch_register (gdbarch, regno); | |
5d502164 | 1259 | |
ad068eab UW |
1260 | return reg? reg->reg : NULL; |
1261 | } | |
1262 | ||
f8b73d13 DJ |
1263 | /* Return the name of register REGNO, from the target description or |
1264 | from an architecture-provided pseudo_register_name method. */ | |
1265 | ||
1266 | const char * | |
d93859e2 | 1267 | tdesc_register_name (struct gdbarch *gdbarch, int regno) |
123dc839 | 1268 | { |
d93859e2 UW |
1269 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
1270 | int num_regs = gdbarch_num_regs (gdbarch); | |
1271 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
123dc839 DJ |
1272 | |
1273 | if (reg != NULL) | |
1274 | return reg->name; | |
1275 | ||
1276 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1277 | { | |
19ba03f4 SM |
1278 | struct tdesc_arch_data *data |
1279 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1280 | |
123dc839 | 1281 | gdb_assert (data->pseudo_register_name != NULL); |
d93859e2 | 1282 | return data->pseudo_register_name (gdbarch, regno); |
123dc839 DJ |
1283 | } |
1284 | ||
1285 | return ""; | |
1286 | } | |
1287 | ||
58d6951d | 1288 | struct type * |
123dc839 DJ |
1289 | tdesc_register_type (struct gdbarch *gdbarch, int regno) |
1290 | { | |
ad068eab UW |
1291 | struct tdesc_arch_reg *arch_reg = tdesc_find_arch_register (gdbarch, regno); |
1292 | struct tdesc_reg *reg = arch_reg? arch_reg->reg : NULL; | |
123dc839 DJ |
1293 | int num_regs = gdbarch_num_regs (gdbarch); |
1294 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
1295 | ||
1296 | if (reg == NULL && regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1297 | { | |
19ba03f4 SM |
1298 | struct tdesc_arch_data *data |
1299 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1300 | |
123dc839 DJ |
1301 | gdb_assert (data->pseudo_register_type != NULL); |
1302 | return data->pseudo_register_type (gdbarch, regno); | |
1303 | } | |
1304 | ||
1305 | if (reg == NULL) | |
1306 | /* Return "int0_t", since "void" has a misleading size of one. */ | |
df4df182 | 1307 | return builtin_type (gdbarch)->builtin_int0; |
123dc839 | 1308 | |
ad068eab | 1309 | if (arch_reg->type == NULL) |
123dc839 | 1310 | { |
ad068eab UW |
1311 | /* First check for a predefined or target defined type. */ |
1312 | if (reg->tdesc_type) | |
1313 | arch_reg->type = tdesc_gdb_type (gdbarch, reg->tdesc_type); | |
1314 | ||
1315 | /* Next try size-sensitive type shortcuts. */ | |
1316 | else if (strcmp (reg->type, "float") == 0) | |
1317 | { | |
1318 | if (reg->bitsize == gdbarch_float_bit (gdbarch)) | |
1319 | arch_reg->type = builtin_type (gdbarch)->builtin_float; | |
1320 | else if (reg->bitsize == gdbarch_double_bit (gdbarch)) | |
1321 | arch_reg->type = builtin_type (gdbarch)->builtin_double; | |
1322 | else if (reg->bitsize == gdbarch_long_double_bit (gdbarch)) | |
1323 | arch_reg->type = builtin_type (gdbarch)->builtin_long_double; | |
1324 | else | |
1325 | { | |
1326 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
1327 | reg->name, reg->bitsize); | |
1328 | arch_reg->type = builtin_type (gdbarch)->builtin_double; | |
1329 | } | |
1330 | } | |
1331 | else if (strcmp (reg->type, "int") == 0) | |
1332 | { | |
1333 | if (reg->bitsize == gdbarch_long_bit (gdbarch)) | |
1334 | arch_reg->type = builtin_type (gdbarch)->builtin_long; | |
1335 | else if (reg->bitsize == TARGET_CHAR_BIT) | |
1336 | arch_reg->type = builtin_type (gdbarch)->builtin_char; | |
1337 | else if (reg->bitsize == gdbarch_short_bit (gdbarch)) | |
1338 | arch_reg->type = builtin_type (gdbarch)->builtin_short; | |
1339 | else if (reg->bitsize == gdbarch_int_bit (gdbarch)) | |
1340 | arch_reg->type = builtin_type (gdbarch)->builtin_int; | |
1341 | else if (reg->bitsize == gdbarch_long_long_bit (gdbarch)) | |
1342 | arch_reg->type = builtin_type (gdbarch)->builtin_long_long; | |
1343 | else if (reg->bitsize == gdbarch_ptr_bit (gdbarch)) | |
c378eb4e | 1344 | /* A bit desperate by this point... */ |
ad068eab UW |
1345 | arch_reg->type = builtin_type (gdbarch)->builtin_data_ptr; |
1346 | else | |
1347 | { | |
1348 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
1349 | reg->name, reg->bitsize); | |
1350 | arch_reg->type = builtin_type (gdbarch)->builtin_long; | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | if (arch_reg->type == NULL) | |
1355 | internal_error (__FILE__, __LINE__, | |
1356 | "Register \"%s\" has an unknown type \"%s\"", | |
1357 | reg->name, reg->type); | |
123dc839 | 1358 | } |
123dc839 | 1359 | |
ad068eab | 1360 | return arch_reg->type; |
123dc839 DJ |
1361 | } |
1362 | ||
1363 | static int | |
1364 | tdesc_remote_register_number (struct gdbarch *gdbarch, int regno) | |
1365 | { | |
1366 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); | |
1367 | ||
1368 | if (reg != NULL) | |
1369 | return reg->target_regnum; | |
1370 | else | |
1371 | return -1; | |
1372 | } | |
1373 | ||
1374 | /* Check whether REGNUM is a member of REGGROUP. Registers from the | |
1375 | target description may be classified as general, float, or vector. | |
f8b73d13 DJ |
1376 | Unlike a gdbarch register_reggroup_p method, this function will |
1377 | return -1 if it does not know; the caller should handle registers | |
1378 | with no specified group. | |
123dc839 DJ |
1379 | |
1380 | Arbitrary strings (other than "general", "float", and "vector") | |
1381 | from the description are not used; they cause the register to be | |
1382 | displayed in "info all-registers" but excluded from "info | |
1383 | registers" et al. The names of containing features are also not | |
1384 | used. This might be extended to display registers in some more | |
1385 | useful groupings. | |
1386 | ||
1387 | The save-restore flag is also implemented here. */ | |
1388 | ||
f8b73d13 DJ |
1389 | int |
1390 | tdesc_register_in_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1391 | struct reggroup *reggroup) | |
123dc839 | 1392 | { |
123dc839 DJ |
1393 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
1394 | ||
123dc839 DJ |
1395 | if (reg != NULL && reg->group != NULL) |
1396 | { | |
1397 | int general_p = 0, float_p = 0, vector_p = 0; | |
1398 | ||
1399 | if (strcmp (reg->group, "general") == 0) | |
1400 | general_p = 1; | |
1401 | else if (strcmp (reg->group, "float") == 0) | |
1402 | float_p = 1; | |
1403 | else if (strcmp (reg->group, "vector") == 0) | |
1404 | vector_p = 1; | |
1405 | ||
1406 | if (reggroup == float_reggroup) | |
1407 | return float_p; | |
1408 | ||
1409 | if (reggroup == vector_reggroup) | |
1410 | return vector_p; | |
1411 | ||
1412 | if (reggroup == general_reggroup) | |
1413 | return general_p; | |
1414 | } | |
1415 | ||
1416 | if (reg != NULL | |
1417 | && (reggroup == save_reggroup || reggroup == restore_reggroup)) | |
1418 | return reg->save_restore; | |
1419 | ||
f8b73d13 DJ |
1420 | return -1; |
1421 | } | |
1422 | ||
1423 | /* Check whether REGNUM is a member of REGGROUP. Registers with no | |
1424 | group specified go to the default reggroup function and are handled | |
1425 | by type. */ | |
1426 | ||
1427 | static int | |
1428 | tdesc_register_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1429 | struct reggroup *reggroup) | |
1430 | { | |
1431 | int num_regs = gdbarch_num_regs (gdbarch); | |
1432 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
1433 | int ret; | |
1434 | ||
1435 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1436 | { | |
19ba03f4 SM |
1437 | struct tdesc_arch_data *data |
1438 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1439 | |
58d6951d DJ |
1440 | if (data->pseudo_register_reggroup_p != NULL) |
1441 | return data->pseudo_register_reggroup_p (gdbarch, regno, reggroup); | |
1442 | /* Otherwise fall through to the default reggroup_p. */ | |
f8b73d13 DJ |
1443 | } |
1444 | ||
1445 | ret = tdesc_register_in_reggroup_p (gdbarch, regno, reggroup); | |
1446 | if (ret != -1) | |
1447 | return ret; | |
1448 | ||
123dc839 DJ |
1449 | return default_register_reggroup_p (gdbarch, regno, reggroup); |
1450 | } | |
1451 | ||
1452 | /* Record architecture-specific functions to call for pseudo-register | |
1453 | support. */ | |
1454 | ||
1455 | void | |
1456 | set_tdesc_pseudo_register_name (struct gdbarch *gdbarch, | |
1457 | gdbarch_register_name_ftype *pseudo_name) | |
1458 | { | |
19ba03f4 SM |
1459 | struct tdesc_arch_data *data |
1460 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
123dc839 DJ |
1461 | |
1462 | data->pseudo_register_name = pseudo_name; | |
1463 | } | |
1464 | ||
1465 | void | |
1466 | set_tdesc_pseudo_register_type (struct gdbarch *gdbarch, | |
1467 | gdbarch_register_type_ftype *pseudo_type) | |
1468 | { | |
19ba03f4 SM |
1469 | struct tdesc_arch_data *data |
1470 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
123dc839 DJ |
1471 | |
1472 | data->pseudo_register_type = pseudo_type; | |
1473 | } | |
1474 | ||
1475 | void | |
1476 | set_tdesc_pseudo_register_reggroup_p | |
1477 | (struct gdbarch *gdbarch, | |
1478 | gdbarch_register_reggroup_p_ftype *pseudo_reggroup_p) | |
1479 | { | |
19ba03f4 SM |
1480 | struct tdesc_arch_data *data |
1481 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
123dc839 DJ |
1482 | |
1483 | data->pseudo_register_reggroup_p = pseudo_reggroup_p; | |
1484 | } | |
1485 | ||
1486 | /* Update GDBARCH to use the target description for registers. */ | |
1487 | ||
1488 | void | |
1489 | tdesc_use_registers (struct gdbarch *gdbarch, | |
7cc46491 | 1490 | const struct target_desc *target_desc, |
123dc839 DJ |
1491 | struct tdesc_arch_data *early_data) |
1492 | { | |
1493 | int num_regs = gdbarch_num_regs (gdbarch); | |
c6913b7d | 1494 | int ixf, ixr; |
123dc839 DJ |
1495 | struct tdesc_feature *feature; |
1496 | struct tdesc_reg *reg; | |
1497 | struct tdesc_arch_data *data; | |
ad068eab | 1498 | struct tdesc_arch_reg *arch_reg, new_arch_reg = { 0 }; |
123dc839 DJ |
1499 | htab_t reg_hash; |
1500 | ||
123dc839 DJ |
1501 | /* We can't use the description for registers if it doesn't describe |
1502 | any. This function should only be called after validating | |
1503 | registers, so the caller should know that registers are | |
1504 | included. */ | |
1505 | gdb_assert (tdesc_has_registers (target_desc)); | |
1506 | ||
19ba03f4 | 1507 | data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); |
ad068eab | 1508 | data->arch_regs = early_data->arch_regs; |
123dc839 DJ |
1509 | xfree (early_data); |
1510 | ||
1511 | /* Build up a set of all registers, so that we can assign register | |
1512 | numbers where needed. The hash table expands as necessary, so | |
1513 | the initial size is arbitrary. */ | |
1514 | reg_hash = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL); | |
1515 | for (ixf = 0; | |
1516 | VEC_iterate (tdesc_feature_p, target_desc->features, ixf, feature); | |
1517 | ixf++) | |
1518 | for (ixr = 0; | |
1519 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1520 | ixr++) | |
1521 | { | |
1522 | void **slot = htab_find_slot (reg_hash, reg, INSERT); | |
1523 | ||
1524 | *slot = reg; | |
1525 | } | |
1526 | ||
1527 | /* Remove any registers which were assigned numbers by the | |
1528 | architecture. */ | |
ad068eab UW |
1529 | for (ixr = 0; |
1530 | VEC_iterate (tdesc_arch_reg, data->arch_regs, ixr, arch_reg); | |
1531 | ixr++) | |
1532 | if (arch_reg->reg) | |
1533 | htab_remove_elt (reg_hash, arch_reg->reg); | |
123dc839 DJ |
1534 | |
1535 | /* Assign numbers to the remaining registers and add them to the | |
f57d151a | 1536 | list of registers. The new numbers are always above gdbarch_num_regs. |
123dc839 DJ |
1537 | Iterate over the features, not the hash table, so that the order |
1538 | matches that in the target description. */ | |
1539 | ||
ad068eab UW |
1540 | gdb_assert (VEC_length (tdesc_arch_reg, data->arch_regs) <= num_regs); |
1541 | while (VEC_length (tdesc_arch_reg, data->arch_regs) < num_regs) | |
1542 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); | |
123dc839 DJ |
1543 | for (ixf = 0; |
1544 | VEC_iterate (tdesc_feature_p, target_desc->features, ixf, feature); | |
1545 | ixf++) | |
1546 | for (ixr = 0; | |
1547 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1548 | ixr++) | |
1549 | if (htab_find (reg_hash, reg) != NULL) | |
1550 | { | |
ad068eab UW |
1551 | new_arch_reg.reg = reg; |
1552 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); | |
123dc839 DJ |
1553 | num_regs++; |
1554 | } | |
1555 | ||
1556 | htab_delete (reg_hash); | |
1557 | ||
1558 | /* Update the architecture. */ | |
1559 | set_gdbarch_num_regs (gdbarch, num_regs); | |
1560 | set_gdbarch_register_name (gdbarch, tdesc_register_name); | |
1561 | set_gdbarch_register_type (gdbarch, tdesc_register_type); | |
1562 | set_gdbarch_remote_register_number (gdbarch, | |
1563 | tdesc_remote_register_number); | |
1564 | set_gdbarch_register_reggroup_p (gdbarch, tdesc_register_reggroup_p); | |
1565 | } | |
1566 | \f | |
1567 | ||
f49ff000 YQ |
1568 | /* See arch/tdesc.h. */ |
1569 | ||
123dc839 DJ |
1570 | void |
1571 | tdesc_create_reg (struct tdesc_feature *feature, const char *name, | |
1572 | int regnum, int save_restore, const char *group, | |
1573 | int bitsize, const char *type) | |
1574 | { | |
72ddacb7 YQ |
1575 | tdesc_reg *reg = new tdesc_reg (feature, name, regnum, save_restore, |
1576 | group, bitsize, type); | |
123dc839 DJ |
1577 | |
1578 | VEC_safe_push (tdesc_reg_p, feature->registers, reg); | |
1579 | } | |
1580 | ||
f49ff000 YQ |
1581 | /* See arch/tdesc.h. */ |
1582 | ||
ad068eab UW |
1583 | struct tdesc_type * |
1584 | tdesc_create_vector (struct tdesc_feature *feature, const char *name, | |
1585 | struct tdesc_type *field_type, int count) | |
1586 | { | |
72ddacb7 | 1587 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_VECTOR); |
ad068eab | 1588 | |
ad068eab UW |
1589 | type->u.v.type = field_type; |
1590 | type->u.v.count = count; | |
1591 | ||
1592 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1593 | return type; | |
1594 | } | |
1595 | ||
f49ff000 YQ |
1596 | /* See arch/tdesc.h. */ |
1597 | ||
f5dff777 DJ |
1598 | struct tdesc_type * |
1599 | tdesc_create_struct (struct tdesc_feature *feature, const char *name) | |
1600 | { | |
72ddacb7 | 1601 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_STRUCT); |
f5dff777 DJ |
1602 | |
1603 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1604 | return type; | |
1605 | } | |
1606 | ||
f49ff000 | 1607 | /* See arch/tdesc.h. */ |
f5dff777 DJ |
1608 | |
1609 | void | |
54157a25 | 1610 | tdesc_set_struct_size (struct tdesc_type *type, int size) |
f5dff777 DJ |
1611 | { |
1612 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); | |
54157a25 | 1613 | gdb_assert (size > 0); |
f5dff777 DJ |
1614 | type->u.u.size = size; |
1615 | } | |
1616 | ||
f49ff000 YQ |
1617 | /* See arch/tdesc.h. */ |
1618 | ||
ad068eab UW |
1619 | struct tdesc_type * |
1620 | tdesc_create_union (struct tdesc_feature *feature, const char *name) | |
1621 | { | |
72ddacb7 | 1622 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_UNION); |
ad068eab UW |
1623 | |
1624 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1625 | return type; | |
1626 | } | |
1627 | ||
f49ff000 YQ |
1628 | /* See arch/tdesc.h. */ |
1629 | ||
f5dff777 DJ |
1630 | struct tdesc_type * |
1631 | tdesc_create_flags (struct tdesc_feature *feature, const char *name, | |
54157a25 | 1632 | int size) |
f5dff777 | 1633 | { |
72ddacb7 | 1634 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_FLAGS); |
f5dff777 | 1635 | |
54157a25 DE |
1636 | gdb_assert (size > 0); |
1637 | ||
81516450 | 1638 | type->u.u.size = size; |
f5dff777 DJ |
1639 | |
1640 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1641 | return type; | |
1642 | } | |
1643 | ||
81516450 DE |
1644 | struct tdesc_type * |
1645 | tdesc_create_enum (struct tdesc_feature *feature, const char *name, | |
1646 | int size) | |
1647 | { | |
72ddacb7 | 1648 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_ENUM); |
81516450 DE |
1649 | |
1650 | gdb_assert (size > 0); | |
1651 | ||
81516450 DE |
1652 | type->u.u.size = size; |
1653 | ||
1654 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1655 | return type; | |
1656 | } | |
1657 | ||
f49ff000 | 1658 | /* See arch/tdesc.h. */ |
f5dff777 | 1659 | |
ad068eab UW |
1660 | void |
1661 | tdesc_add_field (struct tdesc_type *type, const char *field_name, | |
1662 | struct tdesc_type *field_type) | |
1663 | { | |
1664 | struct tdesc_type_field f = { 0 }; | |
1665 | ||
f5dff777 DJ |
1666 | gdb_assert (type->kind == TDESC_TYPE_UNION |
1667 | || type->kind == TDESC_TYPE_STRUCT); | |
ad068eab UW |
1668 | |
1669 | f.name = xstrdup (field_name); | |
1670 | f.type = field_type; | |
81516450 DE |
1671 | /* Initialize these values so we know this is not a bit-field |
1672 | when we print-c-tdesc. */ | |
1673 | f.start = -1; | |
1674 | f.end = -1; | |
ad068eab UW |
1675 | |
1676 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
1677 | } | |
1678 | ||
f5dff777 | 1679 | void |
81516450 DE |
1680 | tdesc_add_typed_bitfield (struct tdesc_type *type, const char *field_name, |
1681 | int start, int end, struct tdesc_type *field_type) | |
f5dff777 DJ |
1682 | { |
1683 | struct tdesc_type_field f = { 0 }; | |
1684 | ||
81516450 DE |
1685 | gdb_assert (type->kind == TDESC_TYPE_STRUCT |
1686 | || type->kind == TDESC_TYPE_FLAGS); | |
1687 | gdb_assert (start >= 0 && end >= start); | |
f5dff777 DJ |
1688 | |
1689 | f.name = xstrdup (field_name); | |
1690 | f.start = start; | |
1691 | f.end = end; | |
81516450 | 1692 | f.type = field_type; |
f5dff777 DJ |
1693 | |
1694 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
1695 | } | |
1696 | ||
f49ff000 | 1697 | /* See arch/tdesc.h. */ |
81516450 DE |
1698 | |
1699 | void | |
1700 | tdesc_add_bitfield (struct tdesc_type *type, const char *field_name, | |
1701 | int start, int end) | |
1702 | { | |
1703 | struct tdesc_type *field_type; | |
1704 | ||
1705 | gdb_assert (start >= 0 && end >= start); | |
1706 | ||
1707 | if (type->u.u.size > 4) | |
1708 | field_type = tdesc_predefined_type (TDESC_TYPE_UINT64); | |
1709 | else | |
1710 | field_type = tdesc_predefined_type (TDESC_TYPE_UINT32); | |
1711 | ||
1712 | tdesc_add_typed_bitfield (type, field_name, start, end, field_type); | |
1713 | } | |
1714 | ||
f49ff000 | 1715 | /* See arch/tdesc.h. */ |
81516450 | 1716 | |
f5dff777 DJ |
1717 | void |
1718 | tdesc_add_flag (struct tdesc_type *type, int start, | |
1719 | const char *flag_name) | |
1720 | { | |
81516450 | 1721 | struct tdesc_type_field f = { 0 }; |
f5dff777 | 1722 | |
81516450 DE |
1723 | gdb_assert (type->kind == TDESC_TYPE_FLAGS |
1724 | || type->kind == TDESC_TYPE_STRUCT); | |
f5dff777 DJ |
1725 | |
1726 | f.name = xstrdup (flag_name); | |
1727 | f.start = start; | |
81516450 DE |
1728 | f.end = start; |
1729 | f.type = tdesc_predefined_type (TDESC_TYPE_BOOL); | |
f5dff777 | 1730 | |
81516450 DE |
1731 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); |
1732 | } | |
1733 | ||
1734 | void | |
1735 | tdesc_add_enum_value (struct tdesc_type *type, int value, | |
1736 | const char *name) | |
1737 | { | |
1738 | struct tdesc_type_field f = { 0 }; | |
1739 | ||
1740 | gdb_assert (type->kind == TDESC_TYPE_ENUM); | |
1741 | ||
1742 | f.name = xstrdup (name); | |
1743 | f.start = value; | |
1744 | f.end = -1; | |
1745 | f.type = tdesc_predefined_type (TDESC_TYPE_INT32); | |
1746 | ||
1747 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
f5dff777 DJ |
1748 | } |
1749 | ||
f49ff000 YQ |
1750 | /* See arch/tdesc.h. */ |
1751 | ||
123dc839 | 1752 | struct tdesc_feature * |
0abe8a89 YQ |
1753 | tdesc_create_feature (struct target_desc *tdesc, const char *name, |
1754 | const char *xml) | |
123dc839 | 1755 | { |
72ddacb7 | 1756 | struct tdesc_feature *new_feature = new tdesc_feature (name); |
123dc839 DJ |
1757 | |
1758 | VEC_safe_push (tdesc_feature_p, tdesc->features, new_feature); | |
1759 | return new_feature; | |
1760 | } | |
1761 | ||
424163ea DJ |
1762 | struct target_desc * |
1763 | allocate_target_description (void) | |
1764 | { | |
b468ff4c | 1765 | return new target_desc (); |
424163ea | 1766 | } |
29709017 | 1767 | |
23181151 DJ |
1768 | static void |
1769 | free_target_description (void *arg) | |
1770 | { | |
19ba03f4 | 1771 | struct target_desc *target_desc = (struct target_desc *) arg; |
e35359c5 | 1772 | |
b468ff4c | 1773 | delete target_desc; |
23181151 DJ |
1774 | } |
1775 | ||
1776 | struct cleanup * | |
1777 | make_cleanup_free_target_description (struct target_desc *target_desc) | |
1778 | { | |
1779 | return make_cleanup (free_target_description, target_desc); | |
1780 | } | |
1781 | ||
e35359c5 UW |
1782 | void |
1783 | tdesc_add_compatible (struct target_desc *target_desc, | |
1784 | const struct bfd_arch_info *compatible) | |
1785 | { | |
1786 | const struct bfd_arch_info *compat; | |
1787 | int ix; | |
1788 | ||
1789 | /* If this instance of GDB is compiled without BFD support for the | |
1790 | compatible architecture, simply ignore it -- we would not be able | |
1791 | to handle it anyway. */ | |
1792 | if (compatible == NULL) | |
1793 | return; | |
1794 | ||
1795 | for (ix = 0; VEC_iterate (arch_p, target_desc->compatible, ix, compat); | |
1796 | ix++) | |
1797 | if (compat == compatible) | |
1798 | internal_error (__FILE__, __LINE__, | |
1799 | _("Attempted to add duplicate " | |
1800 | "compatible architecture \"%s\""), | |
1801 | compatible->printable_name); | |
1802 | ||
1803 | VEC_safe_push (arch_p, target_desc->compatible, compatible); | |
1804 | } | |
1805 | ||
29709017 DJ |
1806 | void |
1807 | set_tdesc_property (struct target_desc *target_desc, | |
1808 | const char *key, const char *value) | |
1809 | { | |
1810 | struct property *prop, new_prop; | |
1811 | int ix; | |
1812 | ||
1813 | gdb_assert (key != NULL && value != NULL); | |
1814 | ||
1815 | for (ix = 0; VEC_iterate (property_s, target_desc->properties, ix, prop); | |
1816 | ix++) | |
1817 | if (strcmp (prop->key, key) == 0) | |
1818 | internal_error (__FILE__, __LINE__, | |
1819 | _("Attempted to add duplicate property \"%s\""), key); | |
1820 | ||
23181151 DJ |
1821 | new_prop.key = xstrdup (key); |
1822 | new_prop.value = xstrdup (value); | |
29709017 DJ |
1823 | VEC_safe_push (property_s, target_desc->properties, &new_prop); |
1824 | } | |
23181151 | 1825 | |
5f035c07 YQ |
1826 | /* See arch/tdesc.h. */ |
1827 | ||
1828 | void | |
1829 | set_tdesc_architecture (struct target_desc *target_desc, | |
1830 | const char *name) | |
1831 | { | |
1832 | set_tdesc_architecture (target_desc, bfd_scan_arch (name)); | |
1833 | } | |
1834 | ||
23181151 DJ |
1835 | void |
1836 | set_tdesc_architecture (struct target_desc *target_desc, | |
1837 | const struct bfd_arch_info *arch) | |
1838 | { | |
1839 | target_desc->arch = arch; | |
1840 | } | |
08d16641 | 1841 | |
5f035c07 YQ |
1842 | /* See arch/tdesc.h. */ |
1843 | ||
1844 | void | |
1845 | set_tdesc_osabi (struct target_desc *target_desc, const char *name) | |
1846 | { | |
1847 | set_tdesc_osabi (target_desc, osabi_from_tdesc_string (name)); | |
1848 | } | |
1849 | ||
08d16641 PA |
1850 | void |
1851 | set_tdesc_osabi (struct target_desc *target_desc, enum gdb_osabi osabi) | |
1852 | { | |
1853 | target_desc->osabi = osabi; | |
1854 | } | |
23181151 DJ |
1855 | \f |
1856 | ||
1857 | static struct cmd_list_element *tdesc_set_cmdlist, *tdesc_show_cmdlist; | |
1858 | static struct cmd_list_element *tdesc_unset_cmdlist; | |
1859 | ||
1860 | /* Helper functions for the CLI commands. */ | |
1861 | ||
1862 | static void | |
1863 | set_tdesc_cmd (char *args, int from_tty) | |
1864 | { | |
635c7e8a | 1865 | help_list (tdesc_set_cmdlist, "set tdesc ", all_commands, gdb_stdout); |
23181151 DJ |
1866 | } |
1867 | ||
1868 | static void | |
1869 | show_tdesc_cmd (char *args, int from_tty) | |
1870 | { | |
1871 | cmd_show_list (tdesc_show_cmdlist, from_tty, ""); | |
1872 | } | |
1873 | ||
1874 | static void | |
1875 | unset_tdesc_cmd (char *args, int from_tty) | |
1876 | { | |
635c7e8a | 1877 | help_list (tdesc_unset_cmdlist, "unset tdesc ", all_commands, gdb_stdout); |
23181151 DJ |
1878 | } |
1879 | ||
1880 | static void | |
1881 | set_tdesc_filename_cmd (char *args, int from_tty, | |
1882 | struct cmd_list_element *c) | |
1883 | { | |
6ecd4729 PA |
1884 | xfree (target_description_filename); |
1885 | target_description_filename = xstrdup (tdesc_filename_cmd_string); | |
1886 | ||
23181151 DJ |
1887 | target_clear_description (); |
1888 | target_find_description (); | |
1889 | } | |
1890 | ||
1891 | static void | |
1892 | show_tdesc_filename_cmd (struct ui_file *file, int from_tty, | |
1893 | struct cmd_list_element *c, | |
1894 | const char *value) | |
1895 | { | |
6ecd4729 PA |
1896 | value = target_description_filename; |
1897 | ||
23181151 | 1898 | if (value != NULL && *value != '\0') |
3e43a32a | 1899 | printf_filtered (_("The target description will be read from \"%s\".\n"), |
23181151 DJ |
1900 | value); |
1901 | else | |
3e43a32a MS |
1902 | printf_filtered (_("The target description will be " |
1903 | "read from the target.\n")); | |
23181151 DJ |
1904 | } |
1905 | ||
1906 | static void | |
1907 | unset_tdesc_filename_cmd (char *args, int from_tty) | |
1908 | { | |
1909 | xfree (target_description_filename); | |
1910 | target_description_filename = NULL; | |
1911 | target_clear_description (); | |
1912 | target_find_description (); | |
1913 | } | |
1914 | ||
6eb1e6a8 YQ |
1915 | /* Print target description in C. */ |
1916 | ||
1917 | class print_c_tdesc : public tdesc_element_visitor | |
1918 | { | |
1919 | public: | |
1920 | print_c_tdesc (std::string &filename_after_features) | |
1921 | : m_filename_after_features (filename_after_features) | |
1922 | { | |
1923 | const char *inp; | |
1924 | char *outp; | |
1925 | const char *filename = lbasename (m_filename_after_features.c_str ()); | |
1926 | ||
1927 | m_function = (char *) xmalloc (strlen (filename) + 1); | |
1928 | for (inp = filename, outp = m_function; *inp != '\0'; inp++) | |
1929 | if (*inp == '.') | |
1930 | break; | |
1931 | else if (*inp == '-') | |
1932 | *outp++ = '_'; | |
1933 | else | |
1934 | *outp++ = *inp; | |
1935 | *outp = '\0'; | |
1936 | ||
1937 | /* Standard boilerplate. */ | |
1938 | printf_unfiltered ("/* THIS FILE IS GENERATED. " | |
1939 | "-*- buffer-read-only: t -*- vi" | |
1940 | ":set ro:\n"); | |
6eb1e6a8 YQ |
1941 | } |
1942 | ||
1943 | ~print_c_tdesc () | |
1944 | { | |
1945 | xfree (m_function); | |
1946 | } | |
1947 | ||
1948 | void visit_pre (const target_desc *e) override | |
1949 | { | |
25aa13e5 YQ |
1950 | printf_unfiltered (" Original: %s */\n\n", |
1951 | lbasename (m_filename_after_features.c_str ())); | |
1952 | ||
6eb1e6a8 YQ |
1953 | printf_unfiltered ("#include \"defs.h\"\n"); |
1954 | printf_unfiltered ("#include \"osabi.h\"\n"); | |
1955 | printf_unfiltered ("#include \"target-descriptions.h\"\n"); | |
1956 | printf_unfiltered ("\n"); | |
1957 | ||
1958 | printf_unfiltered ("struct target_desc *tdesc_%s;\n", m_function); | |
1959 | printf_unfiltered ("static void\n"); | |
1960 | printf_unfiltered ("initialize_tdesc_%s (void)\n", m_function); | |
1961 | printf_unfiltered ("{\n"); | |
1962 | printf_unfiltered | |
1963 | (" struct target_desc *result = allocate_target_description ();\n"); | |
1964 | ||
1965 | if (tdesc_architecture (e) != NULL) | |
1966 | { | |
1967 | printf_unfiltered | |
1968 | (" set_tdesc_architecture (result, bfd_scan_arch (\"%s\"));\n", | |
1969 | tdesc_architecture (e)->printable_name); | |
1970 | printf_unfiltered ("\n"); | |
1971 | } | |
1972 | if (tdesc_osabi (e) > GDB_OSABI_UNKNOWN | |
1973 | && tdesc_osabi (e) < GDB_OSABI_INVALID) | |
1974 | { | |
1975 | printf_unfiltered | |
1976 | (" set_tdesc_osabi (result, osabi_from_tdesc_string (\"%s\"));\n", | |
1977 | gdbarch_osabi_name (tdesc_osabi (e))); | |
1978 | printf_unfiltered ("\n"); | |
1979 | } | |
1980 | ||
1981 | int ix; | |
1982 | const struct bfd_arch_info *compatible; | |
1983 | struct property *prop; | |
1984 | ||
1985 | for (ix = 0; VEC_iterate (arch_p, e->compatible, ix, compatible); | |
1986 | ix++) | |
1987 | { | |
1988 | printf_unfiltered | |
1989 | (" tdesc_add_compatible (result, bfd_scan_arch (\"%s\"));\n", | |
1990 | compatible->printable_name); | |
1991 | } | |
1992 | ||
1993 | if (ix) | |
1994 | printf_unfiltered ("\n"); | |
1995 | ||
1996 | for (ix = 0; VEC_iterate (property_s, e->properties, ix, prop); | |
1997 | ix++) | |
1998 | { | |
1999 | printf_unfiltered (" set_tdesc_property (result, \"%s\", \"%s\");\n", | |
2000 | prop->key, prop->value); | |
2001 | } | |
2002 | printf_unfiltered (" struct tdesc_feature *feature;\n"); | |
2003 | } | |
2004 | ||
25aa13e5 | 2005 | void visit_pre (const tdesc_feature *e) override |
6eb1e6a8 YQ |
2006 | { |
2007 | printf_unfiltered ("\n feature = tdesc_create_feature (result, \"%s\");\n", | |
2008 | e->name); | |
2009 | } | |
2010 | ||
25aa13e5 YQ |
2011 | void visit_post (const tdesc_feature *e) override |
2012 | {} | |
2013 | ||
6eb1e6a8 YQ |
2014 | void visit_post (const target_desc *e) override |
2015 | { | |
2016 | printf_unfiltered ("\n tdesc_%s = result;\n", m_function); | |
2017 | printf_unfiltered ("}\n"); | |
2018 | } | |
2019 | ||
2020 | void visit (const tdesc_type *type) override | |
2021 | { | |
2022 | struct tdesc_type_field *f; | |
2023 | ||
2024 | /* Now we do some "filtering" in order to know which variables to | |
2025 | declare. This is needed because otherwise we would declare unused | |
2026 | variables `field_type' and `type'. */ | |
2027 | if (!m_printed_field_type) | |
2028 | { | |
2029 | printf_unfiltered (" struct tdesc_type *field_type;\n"); | |
2030 | m_printed_field_type = true; | |
2031 | } | |
2032 | ||
2033 | if ((type->kind == TDESC_TYPE_UNION | |
2034 | || type->kind == TDESC_TYPE_STRUCT | |
2035 | || type->kind == TDESC_TYPE_FLAGS | |
2036 | || type->kind == TDESC_TYPE_ENUM) | |
2037 | && VEC_length (tdesc_type_field, type->u.u.fields) > 0 | |
2038 | && !m_printed_type) | |
2039 | { | |
2040 | printf_unfiltered (" struct tdesc_type *type;\n"); | |
2041 | m_printed_type = true; | |
2042 | } | |
2043 | ||
2044 | switch (type->kind) | |
2045 | { | |
2046 | case TDESC_TYPE_VECTOR: | |
2047 | printf_unfiltered | |
2048 | (" field_type = tdesc_named_type (feature, \"%s\");\n", | |
2049 | type->u.v.type->name); | |
2050 | printf_unfiltered | |
2051 | (" tdesc_create_vector (feature, \"%s\", field_type, %d);\n", | |
2052 | type->name, type->u.v.count); | |
2053 | break; | |
2054 | case TDESC_TYPE_STRUCT: | |
2055 | case TDESC_TYPE_FLAGS: | |
2056 | if (type->kind == TDESC_TYPE_STRUCT) | |
2057 | { | |
2058 | printf_unfiltered | |
2059 | (" type = tdesc_create_struct (feature, \"%s\");\n", | |
2060 | type->name); | |
2061 | if (type->u.u.size != 0) | |
2062 | printf_unfiltered | |
2063 | (" tdesc_set_struct_size (type, %d);\n", | |
2064 | type->u.u.size); | |
2065 | } | |
2066 | else | |
2067 | { | |
2068 | printf_unfiltered | |
2069 | (" type = tdesc_create_flags (feature, \"%s\", %d);\n", | |
2070 | type->name, type->u.u.size); | |
2071 | } | |
2072 | for (int ix3 = 0; | |
2073 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix3, f); | |
2074 | ix3++) | |
2075 | { | |
2076 | const char *type_name; | |
2077 | ||
2078 | gdb_assert (f->type != NULL); | |
2079 | type_name = f->type->name; | |
2080 | ||
2081 | /* To minimize changes to generated files, don't emit type | |
2082 | info for fields that have defaulted types. */ | |
2083 | if (f->start != -1) | |
2084 | { | |
2085 | gdb_assert (f->end != -1); | |
2086 | if (f->type->kind == TDESC_TYPE_BOOL) | |
2087 | { | |
2088 | gdb_assert (f->start == f->end); | |
2089 | printf_unfiltered | |
2090 | (" tdesc_add_flag (type, %d, \"%s\");\n", | |
2091 | f->start, f->name); | |
2092 | } | |
2093 | else if ((type->u.u.size == 4 | |
2094 | && f->type->kind == TDESC_TYPE_UINT32) | |
2095 | || (type->u.u.size == 8 | |
2096 | && f->type->kind == TDESC_TYPE_UINT64)) | |
2097 | { | |
2098 | printf_unfiltered | |
2099 | (" tdesc_add_bitfield (type, \"%s\", %d, %d);\n", | |
2100 | f->name, f->start, f->end); | |
2101 | } | |
2102 | else | |
2103 | { | |
2104 | printf_unfiltered | |
2105 | (" field_type = tdesc_named_type (feature," | |
2106 | " \"%s\");\n", | |
2107 | type_name); | |
2108 | printf_unfiltered | |
2109 | (" tdesc_add_typed_bitfield (type, \"%s\"," | |
2110 | " %d, %d, field_type);\n", | |
2111 | f->name, f->start, f->end); | |
2112 | } | |
2113 | } | |
2114 | else /* Not a bitfield. */ | |
2115 | { | |
2116 | gdb_assert (f->end == -1); | |
2117 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); | |
2118 | printf_unfiltered | |
2119 | (" field_type = tdesc_named_type (feature," | |
2120 | " \"%s\");\n", | |
2121 | type_name); | |
2122 | printf_unfiltered | |
2123 | (" tdesc_add_field (type, \"%s\", field_type);\n", | |
2124 | f->name); | |
2125 | } | |
2126 | } | |
2127 | break; | |
2128 | case TDESC_TYPE_UNION: | |
2129 | printf_unfiltered | |
2130 | (" type = tdesc_create_union (feature, \"%s\");\n", | |
2131 | type->name); | |
2132 | for (int ix3 = 0; | |
2133 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix3, f); | |
2134 | ix3++) | |
2135 | { | |
2136 | printf_unfiltered | |
2137 | (" field_type = tdesc_named_type (feature, \"%s\");\n", | |
2138 | f->type->name); | |
2139 | printf_unfiltered | |
2140 | (" tdesc_add_field (type, \"%s\", field_type);\n", | |
2141 | f->name); | |
2142 | } | |
2143 | break; | |
2144 | case TDESC_TYPE_ENUM: | |
2145 | printf_unfiltered | |
2146 | (" type = tdesc_create_enum (feature, \"%s\", %d);\n", | |
2147 | type->name, type->u.u.size); | |
2148 | for (int ix3 = 0; | |
2149 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix3, f); | |
2150 | ix3++) | |
2151 | printf_unfiltered | |
2152 | (" tdesc_add_enum_value (type, %d, \"%s\");\n", | |
2153 | f->start, f->name); | |
2154 | break; | |
2155 | default: | |
2156 | error (_("C output is not supported type \"%s\"."), type->name); | |
2157 | } | |
2158 | printf_unfiltered ("\n"); | |
2159 | } | |
2160 | ||
2161 | void visit (const tdesc_reg *reg) override | |
2162 | { | |
2163 | printf_unfiltered (" tdesc_create_reg (feature, \"%s\", %ld, %d, ", | |
2164 | reg->name, reg->target_regnum, reg->save_restore); | |
2165 | if (reg->group) | |
2166 | printf_unfiltered ("\"%s\", ", reg->group); | |
2167 | else | |
2168 | printf_unfiltered ("NULL, "); | |
2169 | printf_unfiltered ("%d, \"%s\");\n", reg->bitsize, reg->type); | |
2170 | } | |
2171 | ||
25aa13e5 YQ |
2172 | protected: |
2173 | std::string m_filename_after_features; | |
2174 | ||
6eb1e6a8 YQ |
2175 | private: |
2176 | char *m_function; | |
6eb1e6a8 YQ |
2177 | bool m_printed_field_type = false; |
2178 | bool m_printed_type = false; | |
2179 | }; | |
2180 | ||
25aa13e5 YQ |
2181 | /* Print target description feature in C. */ |
2182 | ||
2183 | class print_c_feature : public print_c_tdesc | |
2184 | { | |
2185 | public: | |
2186 | print_c_feature (std::string &file) | |
2187 | : print_c_tdesc (file) | |
2188 | { | |
2189 | /* Trim ".tmp". */ | |
2190 | auto const pos = m_filename_after_features.find_last_of ('.'); | |
2191 | ||
2192 | m_filename_after_features = m_filename_after_features.substr (0, pos); | |
2193 | } | |
2194 | ||
2195 | void visit_pre (const target_desc *e) override | |
2196 | { | |
2197 | printf_unfiltered (" Original: %s */\n\n", | |
2198 | lbasename (m_filename_after_features.c_str ())); | |
2199 | ||
f49ff000 | 2200 | printf_unfiltered ("#include \"arch/tdesc.h\"\n"); |
25aa13e5 YQ |
2201 | printf_unfiltered ("\n"); |
2202 | } | |
2203 | ||
2204 | void visit_post (const target_desc *e) override | |
2205 | {} | |
2206 | ||
2207 | void visit_pre (const tdesc_feature *e) override | |
2208 | { | |
2209 | std::string name (m_filename_after_features); | |
2210 | ||
2211 | auto pos = name.find_first_of ('.'); | |
2212 | ||
2213 | name = name.substr (0, pos); | |
2214 | std::replace (name.begin (), name.end (), '/', '_'); | |
2215 | std::replace (name.begin (), name.end (), '-', '_'); | |
2216 | ||
2217 | printf_unfiltered ("static int\n"); | |
2218 | printf_unfiltered ("create_feature_%s ", name.c_str ()); | |
2219 | printf_unfiltered ("(struct target_desc *result, long regnum)\n"); | |
2220 | ||
2221 | printf_unfiltered ("{\n"); | |
2222 | printf_unfiltered (" struct tdesc_feature *feature;\n"); | |
0abe8a89 YQ |
2223 | |
2224 | printf_unfiltered | |
2225 | ("\n feature = tdesc_create_feature (result, \"%s\", \"%s\");\n", | |
2226 | e->name, lbasename (m_filename_after_features.c_str ())); | |
25aa13e5 YQ |
2227 | } |
2228 | ||
2229 | void visit_post (const tdesc_feature *e) override | |
2230 | { | |
2231 | printf_unfiltered (" return regnum;\n"); | |
2232 | printf_unfiltered ("}\n"); | |
2233 | } | |
2234 | ||
2235 | void visit (const tdesc_reg *reg) override | |
2236 | { | |
ea03d0d3 YQ |
2237 | /* Most "reg" in XML target descriptions don't have "regnum" |
2238 | attribute, so the register number is allocated sequentially. | |
2239 | In case that reg has "regnum" attribute, register number | |
2240 | should be set by that explicitly. */ | |
2241 | ||
2242 | if (reg->target_regnum < m_next_regnum) | |
2243 | { | |
2244 | /* The integrity check, it can catch some errors on register | |
2245 | number collision, like this, | |
2246 | ||
2247 | <reg name="x0" bitsize="32"/> | |
2248 | <reg name="x1" bitsize="32"/> | |
2249 | <reg name="x2" bitsize="32"/> | |
2250 | <reg name="x3" bitsize="32"/> | |
2251 | <reg name="ps" bitsize="32" regnum="3"/> | |
2252 | ||
2253 | but it also has false negatives. The target description | |
2254 | below is correct, | |
2255 | ||
2256 | <reg name="x1" bitsize="32" regnum="1"/> | |
2257 | <reg name="x3" bitsize="32" regnum="3"/> | |
2258 | <reg name="x2" bitsize="32" regnum="2"/> | |
2259 | <reg name="x4" bitsize="32" regnum="4"/> | |
2260 | ||
2261 | but it is not a good practice, so still error on this, | |
2262 | and also print the message so that it can be saved in the | |
2263 | generated c file. */ | |
2264 | ||
2265 | printf_unfiltered ("ERROR: \"regnum\" attribute %ld ", | |
2266 | reg->target_regnum); | |
2267 | printf_unfiltered ("is not the largest number (%d).\n", | |
2268 | m_next_regnum); | |
2269 | error (_("\"regnum\" attribute %ld is not the largest number (%d)."), | |
2270 | reg->target_regnum, m_next_regnum); | |
2271 | } | |
2272 | ||
2273 | if (reg->target_regnum > m_next_regnum) | |
2274 | { | |
2275 | printf_unfiltered (" regnum = %ld;\n", reg->target_regnum); | |
2276 | m_next_regnum = reg->target_regnum; | |
2277 | } | |
2278 | ||
25aa13e5 YQ |
2279 | printf_unfiltered (" tdesc_create_reg (feature, \"%s\", regnum++, %d, ", |
2280 | reg->name, reg->save_restore); | |
2281 | if (reg->group) | |
2282 | printf_unfiltered ("\"%s\", ", reg->group); | |
2283 | else | |
2284 | printf_unfiltered ("NULL, "); | |
2285 | printf_unfiltered ("%d, \"%s\");\n", reg->bitsize, reg->type); | |
ea03d0d3 YQ |
2286 | |
2287 | m_next_regnum++; | |
25aa13e5 YQ |
2288 | } |
2289 | ||
ea03d0d3 YQ |
2290 | private: |
2291 | /* The register number to use for the next register we see. */ | |
2292 | int m_next_regnum = 0; | |
25aa13e5 YQ |
2293 | }; |
2294 | ||
81adfced DJ |
2295 | static void |
2296 | maint_print_c_tdesc_cmd (char *args, int from_tty) | |
2297 | { | |
2298 | const struct target_desc *tdesc; | |
6eb1e6a8 | 2299 | const char *filename; |
81adfced | 2300 | |
8e2141c6 YQ |
2301 | if (args == NULL) |
2302 | { | |
2303 | /* Use the global target-supplied description, not the current | |
2304 | architecture's. This lets a GDB for one architecture generate C | |
2305 | for another architecture's description, even though the gdbarch | |
2306 | initialization code will reject the new description. */ | |
2307 | tdesc = current_target_desc; | |
2308 | filename = target_description_filename; | |
2309 | } | |
2310 | else | |
2311 | { | |
2312 | /* Use the target description from the XML file. */ | |
2313 | filename = args; | |
2314 | tdesc = file_read_description_xml (filename); | |
2315 | } | |
2316 | ||
81adfced DJ |
2317 | if (tdesc == NULL) |
2318 | error (_("There is no target description to print.")); | |
2319 | ||
8e2141c6 | 2320 | if (filename == NULL) |
81adfced DJ |
2321 | error (_("The current target description did not come from an XML file.")); |
2322 | ||
6eb1e6a8 YQ |
2323 | std::string filename_after_features (filename); |
2324 | auto loc = filename_after_features.rfind ("/features/"); | |
4e2f8df6 | 2325 | |
6eb1e6a8 YQ |
2326 | if (loc != std::string::npos) |
2327 | filename_after_features = filename_after_features.substr (loc + 10); | |
4e2f8df6 | 2328 | |
25aa13e5 YQ |
2329 | /* Print c files for target features instead of target descriptions, |
2330 | because c files got from target features are more flexible than the | |
2331 | counterparts. */ | |
6c73f67f YQ |
2332 | if (startswith (filename_after_features.c_str (), "i386/32bit-") |
2333 | || startswith (filename_after_features.c_str (), "i386/64bit-") | |
2334 | || startswith (filename_after_features.c_str (), "i386/x32-core.xml")) | |
25aa13e5 YQ |
2335 | { |
2336 | print_c_feature v (filename_after_features); | |
81adfced | 2337 | |
25aa13e5 YQ |
2338 | tdesc->accept (v); |
2339 | } | |
2340 | else | |
2341 | { | |
2342 | print_c_tdesc v (filename_after_features); | |
2343 | ||
2344 | tdesc->accept (v); | |
2345 | } | |
81adfced DJ |
2346 | } |
2347 | ||
27d41eac YQ |
2348 | namespace selftests { |
2349 | ||
2350 | static std::vector<std::pair<const char*, const target_desc *>> xml_tdesc; | |
2351 | ||
2352 | #if GDB_SELF_TEST | |
2353 | ||
2354 | /* See target-descritpions.h. */ | |
2355 | ||
2356 | void | |
2357 | record_xml_tdesc (const char *xml_file, const struct target_desc *tdesc) | |
2358 | { | |
2359 | xml_tdesc.emplace_back (xml_file, tdesc); | |
2360 | } | |
2361 | #endif | |
2362 | ||
2363 | } | |
2364 | ||
2365 | /* Check that the target descriptions created dynamically by | |
2366 | architecture-specific code equal the descriptions created from XML files | |
2367 | found in the specified directory DIR. */ | |
2368 | ||
2369 | static void | |
2370 | maintenance_check_xml_descriptions (char *dir, int from_tty) | |
2371 | { | |
2372 | if (dir == NULL) | |
2373 | error (_("Missing dir name")); | |
2374 | ||
2375 | gdb::unique_xmalloc_ptr<char> dir1 (tilde_expand (dir)); | |
2376 | std::string feature_dir (dir1.get ()); | |
2377 | unsigned int failed = 0; | |
2378 | ||
2379 | for (auto const &e : selftests::xml_tdesc) | |
2380 | { | |
2381 | std::string tdesc_xml = (feature_dir + SLASH_STRING + e.first); | |
2382 | const target_desc *tdesc | |
2383 | = file_read_description_xml (tdesc_xml.data ()); | |
2384 | ||
2385 | if (tdesc == NULL || *tdesc != *e.second) | |
2386 | failed++; | |
2387 | } | |
2388 | printf_filtered (_("Tested %lu XML files, %d failed\n"), | |
2389 | (long) selftests::xml_tdesc.size (), failed); | |
2390 | } | |
2391 | ||
2c0b251b PA |
2392 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
2393 | extern initialize_file_ftype _initialize_target_descriptions; | |
2394 | ||
23181151 DJ |
2395 | void |
2396 | _initialize_target_descriptions (void) | |
2397 | { | |
123dc839 DJ |
2398 | tdesc_data = gdbarch_data_register_pre_init (tdesc_data_init); |
2399 | ||
23181151 DJ |
2400 | add_prefix_cmd ("tdesc", class_maintenance, set_tdesc_cmd, _("\ |
2401 | Set target description specific variables."), | |
2402 | &tdesc_set_cmdlist, "set tdesc ", | |
2403 | 0 /* allow-unknown */, &setlist); | |
2404 | add_prefix_cmd ("tdesc", class_maintenance, show_tdesc_cmd, _("\ | |
2405 | Show target description specific variables."), | |
2406 | &tdesc_show_cmdlist, "show tdesc ", | |
2407 | 0 /* allow-unknown */, &showlist); | |
2408 | add_prefix_cmd ("tdesc", class_maintenance, unset_tdesc_cmd, _("\ | |
2409 | Unset target description specific variables."), | |
2410 | &tdesc_unset_cmdlist, "unset tdesc ", | |
2411 | 0 /* allow-unknown */, &unsetlist); | |
2412 | ||
2413 | add_setshow_filename_cmd ("filename", class_obscure, | |
6ecd4729 | 2414 | &tdesc_filename_cmd_string, |
23181151 DJ |
2415 | _("\ |
2416 | Set the file to read for an XML target description"), _("\ | |
2417 | Show the file to read for an XML target description"), _("\ | |
2418 | When set, GDB will read the target description from a local\n\ | |
2419 | file instead of querying the remote target."), | |
2420 | set_tdesc_filename_cmd, | |
2421 | show_tdesc_filename_cmd, | |
2422 | &tdesc_set_cmdlist, &tdesc_show_cmdlist); | |
2423 | ||
2424 | add_cmd ("filename", class_obscure, unset_tdesc_filename_cmd, _("\ | |
2425 | Unset the file to read for an XML target description. When unset,\n\ | |
2426 | GDB will read the description from the target."), | |
2427 | &tdesc_unset_cmdlist); | |
81adfced DJ |
2428 | |
2429 | add_cmd ("c-tdesc", class_maintenance, maint_print_c_tdesc_cmd, _("\ | |
2430 | Print the current target description as a C source file."), | |
2431 | &maintenanceprintlist); | |
27d41eac YQ |
2432 | |
2433 | cmd_list_element *cmd; | |
2434 | ||
2435 | cmd = add_cmd ("xml-descriptions", class_maintenance, | |
2436 | maintenance_check_xml_descriptions, _("\ | |
2437 | Check the target descriptions created in GDB equal the descriptions\n\ | |
2438 | created from XML files in the directory.\n\ | |
2439 | The parameter is the directory name."), | |
2440 | &maintenancechecklist); | |
2441 | set_cmd_completer (cmd, filename_completer); | |
23181151 | 2442 | } |