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 | ||
d6541620 | 96 | DISABLE_COPY_AND_ASSIGN (tdesc_reg); |
72ddacb7 | 97 | |
123dc839 DJ |
98 | /* The name of this register. In standard features, it may be |
99 | recognized by the architecture support code, or it may be purely | |
100 | for the user. */ | |
101 | char *name; | |
102 | ||
103 | /* The register number used by this target to refer to this | |
104 | register. This is used for remote p/P packets and to determine | |
105 | the ordering of registers in the remote g/G packets. */ | |
106 | long target_regnum; | |
107 | ||
108 | /* If this flag is set, GDB should save and restore this register | |
109 | around calls to an inferior function. */ | |
110 | int save_restore; | |
111 | ||
112 | /* The name of the register group containing this register, or NULL | |
113 | if the group should be automatically determined from the | |
114 | register's type. If this is "general", "float", or "vector", the | |
115 | corresponding "info" command should display this register's | |
116 | value. It can be an arbitrary string, but should be limited to | |
117 | alphanumeric characters and internal hyphens. Currently other | |
118 | strings are ignored (treated as NULL). */ | |
119 | char *group; | |
120 | ||
121 | /* The size of the register, in bits. */ | |
122 | int bitsize; | |
123 | ||
124 | /* The type of the register. This string corresponds to either | |
125 | a named type from the target description or a predefined | |
126 | type from GDB. */ | |
127 | char *type; | |
128 | ||
129 | /* The target-described type corresponding to TYPE, if found. */ | |
ad068eab | 130 | struct tdesc_type *tdesc_type; |
6eb1e6a8 YQ |
131 | |
132 | void accept (tdesc_element_visitor &v) const override | |
133 | { | |
134 | v.visit (this); | |
135 | } | |
136 | ||
27d41eac YQ |
137 | bool operator== (const tdesc_reg &other) const |
138 | { | |
139 | return (streq (name, other.name) | |
140 | && target_regnum == other.target_regnum | |
141 | && save_restore == other.save_restore | |
142 | && bitsize == other.bitsize | |
143 | && (group == other.group || streq (group, other.group)) | |
144 | && streq (type, other.type)); | |
145 | } | |
146 | ||
147 | bool operator!= (const tdesc_reg &other) const | |
148 | { | |
149 | return !(*this == other); | |
150 | } | |
123dc839 DJ |
151 | } *tdesc_reg_p; |
152 | DEF_VEC_P(tdesc_reg_p); | |
153 | ||
154 | /* A named type from a target description. */ | |
ad068eab UW |
155 | |
156 | typedef struct tdesc_type_field | |
157 | { | |
158 | char *name; | |
159 | struct tdesc_type *type; | |
81516450 DE |
160 | /* For non-enum-values, either both are -1 (non-bitfield), or both are |
161 | not -1 (bitfield). For enum values, start is the value (which could be | |
162 | -1), end is -1. */ | |
f5dff777 | 163 | int start, end; |
ad068eab UW |
164 | } tdesc_type_field; |
165 | DEF_VEC_O(tdesc_type_field); | |
166 | ||
52059ffd TT |
167 | enum tdesc_type_kind |
168 | { | |
169 | /* Predefined types. */ | |
81516450 | 170 | TDESC_TYPE_BOOL, |
52059ffd TT |
171 | TDESC_TYPE_INT8, |
172 | TDESC_TYPE_INT16, | |
173 | TDESC_TYPE_INT32, | |
174 | TDESC_TYPE_INT64, | |
175 | TDESC_TYPE_INT128, | |
176 | TDESC_TYPE_UINT8, | |
177 | TDESC_TYPE_UINT16, | |
178 | TDESC_TYPE_UINT32, | |
179 | TDESC_TYPE_UINT64, | |
180 | TDESC_TYPE_UINT128, | |
181 | TDESC_TYPE_CODE_PTR, | |
182 | TDESC_TYPE_DATA_PTR, | |
183 | TDESC_TYPE_IEEE_SINGLE, | |
184 | TDESC_TYPE_IEEE_DOUBLE, | |
185 | TDESC_TYPE_ARM_FPA_EXT, | |
186 | TDESC_TYPE_I387_EXT, | |
187 | ||
188 | /* Types defined by a target feature. */ | |
189 | TDESC_TYPE_VECTOR, | |
190 | TDESC_TYPE_STRUCT, | |
191 | TDESC_TYPE_UNION, | |
81516450 DE |
192 | TDESC_TYPE_FLAGS, |
193 | TDESC_TYPE_ENUM | |
52059ffd TT |
194 | }; |
195 | ||
6eb1e6a8 | 196 | typedef struct tdesc_type : tdesc_element |
ad068eab | 197 | { |
72ddacb7 YQ |
198 | tdesc_type (const char *name_, enum tdesc_type_kind kind_) |
199 | : name (xstrdup (name_)), kind (kind_) | |
200 | { | |
201 | memset (&u, 0, sizeof (u)); | |
202 | } | |
203 | ||
6eb1e6a8 | 204 | virtual ~tdesc_type () |
72ddacb7 YQ |
205 | { |
206 | switch (kind) | |
207 | { | |
208 | case TDESC_TYPE_STRUCT: | |
209 | case TDESC_TYPE_UNION: | |
210 | case TDESC_TYPE_FLAGS: | |
211 | case TDESC_TYPE_ENUM: | |
212 | { | |
213 | struct tdesc_type_field *f; | |
214 | int ix; | |
215 | ||
216 | for (ix = 0; | |
217 | VEC_iterate (tdesc_type_field, u.u.fields, ix, f); | |
218 | ix++) | |
219 | xfree (f->name); | |
220 | ||
221 | VEC_free (tdesc_type_field, u.u.fields); | |
222 | } | |
223 | break; | |
224 | ||
225 | default: | |
226 | break; | |
227 | } | |
228 | xfree ((char *) name); | |
229 | } | |
d6541620 YQ |
230 | |
231 | DISABLE_COPY_AND_ASSIGN (tdesc_type); | |
72ddacb7 | 232 | |
a121b7c1 PA |
233 | /* The name of this type. If this type is a built-in type, this is |
234 | a pointer to a constant string. Otherwise, it's a | |
235 | malloc-allocated string (and thus must be freed). */ | |
236 | const char *name; | |
ad068eab UW |
237 | |
238 | /* Identify the kind of this type. */ | |
52059ffd | 239 | enum tdesc_type_kind kind; |
ad068eab UW |
240 | |
241 | /* Kind-specific data. */ | |
242 | union | |
243 | { | |
244 | /* Vector type. */ | |
245 | struct | |
246 | { | |
247 | struct tdesc_type *type; | |
248 | int count; | |
249 | } v; | |
250 | ||
81516450 | 251 | /* Struct, union, flags, or enum type. */ |
ad068eab UW |
252 | struct |
253 | { | |
254 | VEC(tdesc_type_field) *fields; | |
54157a25 | 255 | int size; |
ad068eab UW |
256 | } u; |
257 | } u; | |
6eb1e6a8 YQ |
258 | |
259 | void accept (tdesc_element_visitor &v) const override | |
260 | { | |
261 | v.visit (this); | |
262 | } | |
263 | ||
27d41eac YQ |
264 | bool operator== (const tdesc_type &other) const |
265 | { | |
266 | return (streq (name, other.name) && kind == other.kind); | |
267 | } | |
268 | ||
269 | bool operator!= (const tdesc_type &other) const | |
270 | { | |
271 | return !(*this == other); | |
272 | } | |
ad068eab UW |
273 | } *tdesc_type_p; |
274 | DEF_VEC_P(tdesc_type_p); | |
123dc839 DJ |
275 | |
276 | /* A feature from a target description. Each feature is a collection | |
277 | of other elements, e.g. registers and types. */ | |
278 | ||
6eb1e6a8 | 279 | typedef struct tdesc_feature : tdesc_element |
123dc839 | 280 | { |
72ddacb7 YQ |
281 | tdesc_feature (const char *name_) |
282 | : name (xstrdup (name_)) | |
283 | {} | |
284 | ||
6eb1e6a8 | 285 | virtual ~tdesc_feature () |
72ddacb7 YQ |
286 | { |
287 | struct tdesc_reg *reg; | |
288 | struct tdesc_type *type; | |
289 | int ix; | |
290 | ||
291 | for (ix = 0; VEC_iterate (tdesc_reg_p, registers, ix, reg); ix++) | |
292 | delete reg; | |
293 | VEC_free (tdesc_reg_p, registers); | |
294 | ||
295 | for (ix = 0; VEC_iterate (tdesc_type_p, types, ix, type); ix++) | |
296 | delete type; | |
297 | VEC_free (tdesc_type_p, types); | |
298 | ||
299 | xfree (name); | |
300 | } | |
301 | ||
d6541620 | 302 | DISABLE_COPY_AND_ASSIGN (tdesc_feature); |
72ddacb7 | 303 | |
123dc839 DJ |
304 | /* The name of this feature. It may be recognized by the architecture |
305 | support code. */ | |
306 | char *name; | |
307 | ||
308 | /* The registers associated with this feature. */ | |
72ddacb7 | 309 | VEC(tdesc_reg_p) *registers = NULL; |
123dc839 DJ |
310 | |
311 | /* The types associated with this feature. */ | |
72ddacb7 | 312 | VEC(tdesc_type_p) *types = NULL; |
6eb1e6a8 YQ |
313 | |
314 | void accept (tdesc_element_visitor &v) const override | |
315 | { | |
25aa13e5 | 316 | v.visit_pre (this); |
6eb1e6a8 YQ |
317 | |
318 | struct tdesc_type *type; | |
319 | ||
320 | for (int ix = 0; | |
321 | VEC_iterate (tdesc_type_p, types, ix, type); | |
322 | ix++) | |
323 | type->accept (v); | |
324 | ||
325 | struct tdesc_reg *reg; | |
326 | ||
327 | for (int ix = 0; | |
328 | VEC_iterate (tdesc_reg_p, registers, ix, reg); | |
329 | ix++) | |
330 | reg->accept (v); | |
331 | ||
6eb1e6a8 | 332 | |
25aa13e5 YQ |
333 | v.visit_post (this); |
334 | } | |
27d41eac YQ |
335 | |
336 | bool operator== (const tdesc_feature &other) const | |
337 | { | |
338 | if (strcmp (name, other.name) != 0) | |
339 | return false; | |
340 | ||
341 | if (VEC_length (tdesc_reg_p, registers) | |
342 | != VEC_length (tdesc_reg_p, other.registers)) | |
343 | return false; | |
344 | ||
345 | struct tdesc_reg *reg; | |
346 | ||
347 | for (int ix = 0; | |
348 | VEC_iterate (tdesc_reg_p, registers, ix, reg); | |
349 | ix++) | |
350 | { | |
351 | tdesc_reg *reg2 | |
352 | = VEC_index (tdesc_reg_p, other.registers, ix); | |
353 | ||
354 | if (reg != reg2 && *reg != *reg2) | |
355 | return false; | |
356 | } | |
357 | ||
358 | if (VEC_length (tdesc_type_p, types) | |
359 | != VEC_length (tdesc_type_p, other.types)) | |
360 | return false; | |
361 | ||
362 | tdesc_type *type; | |
363 | ||
364 | for (int ix = 0; | |
365 | VEC_iterate (tdesc_type_p, types, ix, type); | |
366 | ix++) | |
367 | { | |
368 | tdesc_type *type2 | |
369 | = VEC_index (tdesc_type_p, other.types, ix); | |
370 | ||
371 | if (type != type2 && *type != *type2) | |
372 | return false; | |
373 | } | |
374 | ||
375 | return true; | |
376 | } | |
377 | ||
378 | bool operator!= (const tdesc_feature &other) const | |
379 | { | |
380 | return !(*this == other); | |
381 | } | |
382 | ||
123dc839 DJ |
383 | } *tdesc_feature_p; |
384 | DEF_VEC_P(tdesc_feature_p); | |
385 | ||
e35359c5 UW |
386 | /* A compatible architecture from a target description. */ |
387 | typedef const struct bfd_arch_info *arch_p; | |
388 | DEF_VEC_P(arch_p); | |
389 | ||
123dc839 DJ |
390 | /* A target description. */ |
391 | ||
6eb1e6a8 | 392 | struct target_desc : tdesc_element |
424163ea | 393 | { |
b468ff4c YQ |
394 | target_desc () |
395 | {} | |
396 | ||
6eb1e6a8 | 397 | virtual ~target_desc () |
b468ff4c YQ |
398 | { |
399 | struct tdesc_feature *feature; | |
400 | struct property *prop; | |
401 | int ix; | |
402 | ||
403 | for (ix = 0; | |
404 | VEC_iterate (tdesc_feature_p, features, ix, feature); | |
405 | ix++) | |
406 | delete feature; | |
407 | VEC_free (tdesc_feature_p, features); | |
408 | ||
409 | for (ix = 0; | |
410 | VEC_iterate (property_s, properties, ix, prop); | |
411 | ix++) | |
412 | { | |
413 | xfree (prop->key); | |
414 | xfree (prop->value); | |
415 | } | |
416 | ||
417 | VEC_free (property_s, properties); | |
418 | VEC_free (arch_p, compatible); | |
419 | } | |
420 | ||
421 | target_desc (const target_desc &) = delete; | |
422 | void operator= (const target_desc &) = delete; | |
423 | ||
23181151 | 424 | /* The architecture reported by the target, if any. */ |
b468ff4c | 425 | const struct bfd_arch_info *arch = NULL; |
23181151 | 426 | |
08d16641 PA |
427 | /* The osabi reported by the target, if any; GDB_OSABI_UNKNOWN |
428 | otherwise. */ | |
b468ff4c | 429 | enum gdb_osabi osabi = GDB_OSABI_UNKNOWN; |
08d16641 | 430 | |
e35359c5 | 431 | /* The list of compatible architectures reported by the target. */ |
b468ff4c | 432 | VEC(arch_p) *compatible = NULL; |
e35359c5 | 433 | |
29709017 | 434 | /* Any architecture-specific properties specified by the target. */ |
b468ff4c | 435 | VEC(property_s) *properties = NULL; |
123dc839 DJ |
436 | |
437 | /* The features associated with this target. */ | |
b468ff4c | 438 | VEC(tdesc_feature_p) *features = NULL; |
6eb1e6a8 YQ |
439 | |
440 | void accept (tdesc_element_visitor &v) const override | |
441 | { | |
442 | v.visit_pre (this); | |
443 | ||
444 | struct tdesc_feature *feature; | |
445 | ||
446 | for (int ix = 0; | |
447 | VEC_iterate (tdesc_feature_p, features, ix, feature); | |
448 | ix++) | |
449 | feature->accept (v); | |
450 | ||
451 | v.visit_post (this); | |
452 | } | |
27d41eac YQ |
453 | |
454 | bool operator== (const target_desc &other) const | |
455 | { | |
456 | if (arch != other.arch) | |
457 | return false; | |
458 | ||
459 | if (osabi != other.osabi) | |
460 | return false; | |
461 | ||
462 | if (VEC_length (tdesc_feature_p, features) | |
463 | != VEC_length (tdesc_feature_p, other.features)) | |
464 | return false; | |
465 | ||
466 | struct tdesc_feature *feature; | |
467 | ||
468 | for (int ix = 0; | |
469 | VEC_iterate (tdesc_feature_p, features, ix, feature); | |
470 | ix++) | |
471 | { | |
472 | struct tdesc_feature *feature2 | |
473 | = VEC_index (tdesc_feature_p, other.features, ix); | |
474 | ||
475 | if (feature != feature2 && *feature != *feature2) | |
476 | return false; | |
477 | } | |
478 | ||
479 | return true; | |
480 | } | |
481 | ||
482 | bool operator!= (const target_desc &other) const | |
483 | { | |
484 | return !(*this == other); | |
485 | } | |
123dc839 DJ |
486 | }; |
487 | ||
488 | /* Per-architecture data associated with a target description. The | |
489 | target description may be shared by multiple architectures, but | |
490 | this data is private to one gdbarch. */ | |
491 | ||
ad068eab UW |
492 | typedef struct tdesc_arch_reg |
493 | { | |
494 | struct tdesc_reg *reg; | |
495 | struct type *type; | |
496 | } tdesc_arch_reg; | |
497 | DEF_VEC_O(tdesc_arch_reg); | |
498 | ||
123dc839 DJ |
499 | struct tdesc_arch_data |
500 | { | |
ad068eab | 501 | /* A list of register/type pairs, indexed by GDB's internal register number. |
123dc839 DJ |
502 | During initialization of the gdbarch this list is used to store |
503 | registers which the architecture assigns a fixed register number. | |
504 | Registers which are NULL in this array, or off the end, are | |
505 | treated as zero-sized and nameless (i.e. placeholders in the | |
506 | numbering). */ | |
ad068eab | 507 | VEC(tdesc_arch_reg) *arch_regs; |
123dc839 DJ |
508 | |
509 | /* Functions which report the register name, type, and reggroups for | |
510 | pseudo-registers. */ | |
511 | gdbarch_register_name_ftype *pseudo_register_name; | |
512 | gdbarch_register_type_ftype *pseudo_register_type; | |
513 | gdbarch_register_reggroup_p_ftype *pseudo_register_reggroup_p; | |
424163ea DJ |
514 | }; |
515 | ||
6ecd4729 PA |
516 | /* Info about an inferior's target description. There's one of these |
517 | for each inferior. */ | |
424163ea | 518 | |
6ecd4729 PA |
519 | struct target_desc_info |
520 | { | |
521 | /* A flag indicating that a description has already been fetched | |
522 | from the target, so it should not be queried again. */ | |
523 | ||
524 | int fetched; | |
424163ea | 525 | |
6ecd4729 PA |
526 | /* The description fetched from the target, or NULL if the target |
527 | did not supply any description. Only valid when | |
528 | target_desc_fetched is set. Only the description initialization | |
529 | code should access this; normally, the description should be | |
530 | accessed through the gdbarch object. */ | |
424163ea | 531 | |
6ecd4729 | 532 | const struct target_desc *tdesc; |
424163ea | 533 | |
6ecd4729 PA |
534 | /* The filename to read a target description from, as set by "set |
535 | tdesc filename ..." */ | |
424163ea | 536 | |
6ecd4729 PA |
537 | char *filename; |
538 | }; | |
23181151 | 539 | |
6ecd4729 PA |
540 | /* Get the inferior INF's target description info, allocating one on |
541 | the stop if necessary. */ | |
23181151 | 542 | |
6ecd4729 PA |
543 | static struct target_desc_info * |
544 | get_tdesc_info (struct inferior *inf) | |
545 | { | |
546 | if (inf->tdesc_info == NULL) | |
547 | inf->tdesc_info = XCNEW (struct target_desc_info); | |
548 | return inf->tdesc_info; | |
549 | } | |
23181151 | 550 | |
123dc839 DJ |
551 | /* A handle for architecture-specific data associated with the |
552 | target description (see struct tdesc_arch_data). */ | |
553 | ||
554 | static struct gdbarch_data *tdesc_data; | |
555 | ||
6ecd4729 PA |
556 | /* See target-descriptions.h. */ |
557 | ||
558 | int | |
559 | target_desc_info_from_user_p (struct target_desc_info *info) | |
560 | { | |
561 | return info != NULL && info->filename != NULL; | |
562 | } | |
563 | ||
564 | /* See target-descriptions.h. */ | |
565 | ||
566 | void | |
567 | copy_inferior_target_desc_info (struct inferior *destinf, struct inferior *srcinf) | |
568 | { | |
569 | struct target_desc_info *src = get_tdesc_info (srcinf); | |
570 | struct target_desc_info *dest = get_tdesc_info (destinf); | |
571 | ||
572 | dest->fetched = src->fetched; | |
573 | dest->tdesc = src->tdesc; | |
574 | dest->filename = src->filename != NULL ? xstrdup (src->filename) : NULL; | |
575 | } | |
576 | ||
577 | /* See target-descriptions.h. */ | |
578 | ||
579 | void | |
580 | target_desc_info_free (struct target_desc_info *tdesc_info) | |
581 | { | |
582 | if (tdesc_info != NULL) | |
583 | { | |
584 | xfree (tdesc_info->filename); | |
585 | xfree (tdesc_info); | |
586 | } | |
587 | } | |
588 | ||
589 | /* Convenience helper macros. */ | |
590 | ||
591 | #define target_desc_fetched \ | |
592 | get_tdesc_info (current_inferior ())->fetched | |
593 | #define current_target_desc \ | |
594 | get_tdesc_info (current_inferior ())->tdesc | |
595 | #define target_description_filename \ | |
596 | get_tdesc_info (current_inferior ())->filename | |
597 | ||
598 | /* The string manipulated by the "set tdesc filename ..." command. */ | |
599 | ||
600 | static char *tdesc_filename_cmd_string; | |
601 | ||
424163ea DJ |
602 | /* Fetch the current target's description, and switch the current |
603 | architecture to one which incorporates that description. */ | |
604 | ||
605 | void | |
606 | target_find_description (void) | |
607 | { | |
608 | /* If we've already fetched a description from the target, don't do | |
609 | it again. This allows a target to fetch the description early, | |
610 | during its to_open or to_create_inferior, if it needs extra | |
611 | information about the target to initialize. */ | |
612 | if (target_desc_fetched) | |
613 | return; | |
614 | ||
615 | /* The current architecture should not have any target description | |
616 | specified. It should have been cleared, e.g. when we | |
617 | disconnected from the previous target. */ | |
f5656ead | 618 | gdb_assert (gdbarch_target_desc (target_gdbarch ()) == NULL); |
424163ea | 619 | |
23181151 DJ |
620 | /* First try to fetch an XML description from the user-specified |
621 | file. */ | |
622 | current_target_desc = NULL; | |
623 | if (target_description_filename != NULL | |
624 | && *target_description_filename != '\0') | |
625 | current_target_desc | |
626 | = file_read_description_xml (target_description_filename); | |
627 | ||
628 | /* Next try to read the description from the current target using | |
629 | target objects. */ | |
630 | if (current_target_desc == NULL) | |
631 | current_target_desc = target_read_description_xml (¤t_target); | |
632 | ||
633 | /* If that failed try a target-specific hook. */ | |
634 | if (current_target_desc == NULL) | |
635 | current_target_desc = target_read_description (¤t_target); | |
424163ea DJ |
636 | |
637 | /* If a non-NULL description was returned, then update the current | |
638 | architecture. */ | |
639 | if (current_target_desc) | |
640 | { | |
641 | struct gdbarch_info info; | |
642 | ||
643 | gdbarch_info_init (&info); | |
644 | info.target_desc = current_target_desc; | |
645 | if (!gdbarch_update_p (info)) | |
123dc839 DJ |
646 | warning (_("Architecture rejected target-supplied description")); |
647 | else | |
648 | { | |
649 | struct tdesc_arch_data *data; | |
650 | ||
19ba03f4 SM |
651 | data = ((struct tdesc_arch_data *) |
652 | gdbarch_data (target_gdbarch (), tdesc_data)); | |
123dc839 | 653 | if (tdesc_has_registers (current_target_desc) |
ad068eab | 654 | && data->arch_regs == NULL) |
123dc839 DJ |
655 | warning (_("Target-supplied registers are not supported " |
656 | "by the current architecture")); | |
657 | } | |
424163ea DJ |
658 | } |
659 | ||
660 | /* Now that we know this description is usable, record that we | |
661 | fetched it. */ | |
662 | target_desc_fetched = 1; | |
663 | } | |
664 | ||
665 | /* Discard any description fetched from the current target, and switch | |
666 | the current architecture to one with no target description. */ | |
667 | ||
668 | void | |
669 | target_clear_description (void) | |
670 | { | |
671 | struct gdbarch_info info; | |
672 | ||
673 | if (!target_desc_fetched) | |
674 | return; | |
675 | ||
676 | target_desc_fetched = 0; | |
677 | current_target_desc = NULL; | |
678 | ||
679 | gdbarch_info_init (&info); | |
680 | if (!gdbarch_update_p (info)) | |
681 | internal_error (__FILE__, __LINE__, | |
682 | _("Could not remove target-supplied description")); | |
683 | } | |
684 | ||
685 | /* Return the global current target description. This should only be | |
686 | used by gdbarch initialization code; most access should be through | |
687 | an existing gdbarch. */ | |
688 | ||
689 | const struct target_desc * | |
690 | target_current_description (void) | |
691 | { | |
692 | if (target_desc_fetched) | |
693 | return current_target_desc; | |
694 | ||
695 | return NULL; | |
696 | } | |
e35359c5 UW |
697 | |
698 | /* Return non-zero if this target description is compatible | |
699 | with the given BFD architecture. */ | |
700 | ||
701 | int | |
702 | tdesc_compatible_p (const struct target_desc *target_desc, | |
703 | const struct bfd_arch_info *arch) | |
704 | { | |
705 | const struct bfd_arch_info *compat; | |
706 | int ix; | |
707 | ||
708 | for (ix = 0; VEC_iterate (arch_p, target_desc->compatible, ix, compat); | |
709 | ix++) | |
710 | { | |
711 | if (compat == arch | |
712 | || arch->compatible (arch, compat) | |
713 | || compat->compatible (compat, arch)) | |
714 | return 1; | |
715 | } | |
716 | ||
717 | return 0; | |
718 | } | |
23181151 DJ |
719 | \f |
720 | ||
123dc839 | 721 | /* Direct accessors for target descriptions. */ |
424163ea | 722 | |
29709017 DJ |
723 | /* Return the string value of a property named KEY, or NULL if the |
724 | property was not specified. */ | |
725 | ||
726 | const char * | |
727 | tdesc_property (const struct target_desc *target_desc, const char *key) | |
728 | { | |
729 | struct property *prop; | |
730 | int ix; | |
731 | ||
732 | for (ix = 0; VEC_iterate (property_s, target_desc->properties, ix, prop); | |
733 | ix++) | |
734 | if (strcmp (prop->key, key) == 0) | |
735 | return prop->value; | |
736 | ||
737 | return NULL; | |
738 | } | |
739 | ||
23181151 DJ |
740 | /* Return the BFD architecture associated with this target |
741 | description, or NULL if no architecture was specified. */ | |
742 | ||
743 | const struct bfd_arch_info * | |
744 | tdesc_architecture (const struct target_desc *target_desc) | |
745 | { | |
746 | return target_desc->arch; | |
747 | } | |
08d16641 PA |
748 | |
749 | /* Return the OSABI associated with this target description, or | |
750 | GDB_OSABI_UNKNOWN if no osabi was specified. */ | |
751 | ||
752 | enum gdb_osabi | |
753 | tdesc_osabi (const struct target_desc *target_desc) | |
754 | { | |
755 | return target_desc->osabi; | |
756 | } | |
757 | ||
23181151 DJ |
758 | \f |
759 | ||
123dc839 DJ |
760 | /* Return 1 if this target description includes any registers. */ |
761 | ||
762 | int | |
763 | tdesc_has_registers (const struct target_desc *target_desc) | |
764 | { | |
765 | int ix; | |
766 | struct tdesc_feature *feature; | |
767 | ||
768 | if (target_desc == NULL) | |
769 | return 0; | |
770 | ||
771 | for (ix = 0; | |
772 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
773 | ix++) | |
774 | if (! VEC_empty (tdesc_reg_p, feature->registers)) | |
775 | return 1; | |
776 | ||
777 | return 0; | |
778 | } | |
779 | ||
780 | /* Return the feature with the given name, if present, or NULL if | |
781 | the named feature is not found. */ | |
782 | ||
783 | const struct tdesc_feature * | |
784 | tdesc_find_feature (const struct target_desc *target_desc, | |
785 | const char *name) | |
786 | { | |
787 | int ix; | |
788 | struct tdesc_feature *feature; | |
789 | ||
790 | for (ix = 0; | |
791 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
792 | ix++) | |
793 | if (strcmp (feature->name, name) == 0) | |
794 | return feature; | |
795 | ||
796 | return NULL; | |
797 | } | |
798 | ||
799 | /* Return the name of FEATURE. */ | |
800 | ||
801 | const char * | |
802 | tdesc_feature_name (const struct tdesc_feature *feature) | |
803 | { | |
804 | return feature->name; | |
805 | } | |
806 | ||
ad068eab UW |
807 | /* Predefined types. */ |
808 | static struct tdesc_type tdesc_predefined_types[] = | |
81adfced | 809 | { |
81516450 | 810 | { "bool", TDESC_TYPE_BOOL }, |
ad068eab UW |
811 | { "int8", TDESC_TYPE_INT8 }, |
812 | { "int16", TDESC_TYPE_INT16 }, | |
813 | { "int32", TDESC_TYPE_INT32 }, | |
814 | { "int64", TDESC_TYPE_INT64 }, | |
815 | { "int128", TDESC_TYPE_INT128 }, | |
816 | { "uint8", TDESC_TYPE_UINT8 }, | |
817 | { "uint16", TDESC_TYPE_UINT16 }, | |
818 | { "uint32", TDESC_TYPE_UINT32 }, | |
819 | { "uint64", TDESC_TYPE_UINT64 }, | |
820 | { "uint128", TDESC_TYPE_UINT128 }, | |
821 | { "code_ptr", TDESC_TYPE_CODE_PTR }, | |
822 | { "data_ptr", TDESC_TYPE_DATA_PTR }, | |
823 | { "ieee_single", TDESC_TYPE_IEEE_SINGLE }, | |
824 | { "ieee_double", TDESC_TYPE_IEEE_DOUBLE }, | |
9fd3625f | 825 | { "arm_fpa_ext", TDESC_TYPE_ARM_FPA_EXT }, |
a6f5ef51 | 826 | { "i387_ext", TDESC_TYPE_I387_EXT } |
ad068eab | 827 | }; |
81adfced | 828 | |
81516450 DE |
829 | /* Lookup a predefined type. */ |
830 | ||
831 | static struct tdesc_type * | |
832 | tdesc_predefined_type (enum tdesc_type_kind kind) | |
833 | { | |
834 | int ix; | |
835 | struct tdesc_type *type; | |
836 | ||
837 | for (ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++) | |
838 | if (tdesc_predefined_types[ix].kind == kind) | |
839 | return &tdesc_predefined_types[ix]; | |
840 | ||
841 | gdb_assert_not_reached ("bad predefined tdesc type"); | |
842 | } | |
843 | ||
f49ff000 | 844 | /* See arch/tdesc.h. */ |
123dc839 | 845 | |
ad068eab | 846 | struct tdesc_type * |
123dc839 DJ |
847 | tdesc_named_type (const struct tdesc_feature *feature, const char *id) |
848 | { | |
849 | int ix; | |
ad068eab | 850 | struct tdesc_type *type; |
123dc839 DJ |
851 | |
852 | /* First try target-defined types. */ | |
ad068eab UW |
853 | for (ix = 0; VEC_iterate (tdesc_type_p, feature->types, ix, type); ix++) |
854 | if (strcmp (type->name, id) == 0) | |
855 | return type; | |
123dc839 | 856 | |
81adfced DJ |
857 | /* Next try the predefined types. */ |
858 | for (ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++) | |
859 | if (strcmp (tdesc_predefined_types[ix].name, id) == 0) | |
ad068eab | 860 | return &tdesc_predefined_types[ix]; |
123dc839 DJ |
861 | |
862 | return NULL; | |
863 | } | |
ad068eab | 864 | |
9fd3625f L |
865 | /* Lookup type associated with ID. */ |
866 | ||
867 | struct type * | |
868 | tdesc_find_type (struct gdbarch *gdbarch, const char *id) | |
869 | { | |
870 | struct tdesc_arch_reg *reg; | |
871 | struct tdesc_arch_data *data; | |
872 | int i, num_regs; | |
873 | ||
19ba03f4 | 874 | data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); |
9fd3625f L |
875 | num_regs = VEC_length (tdesc_arch_reg, data->arch_regs); |
876 | for (i = 0; i < num_regs; i++) | |
877 | { | |
878 | reg = VEC_index (tdesc_arch_reg, data->arch_regs, i); | |
879 | if (reg->reg | |
880 | && reg->reg->tdesc_type | |
881 | && reg->type | |
882 | && strcmp (id, reg->reg->tdesc_type->name) == 0) | |
883 | return reg->type; | |
884 | } | |
885 | ||
886 | return NULL; | |
887 | } | |
888 | ||
ad068eab UW |
889 | /* Construct, if necessary, and return the GDB type implementing target |
890 | type TDESC_TYPE for architecture GDBARCH. */ | |
891 | ||
892 | static struct type * | |
893 | tdesc_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *tdesc_type) | |
894 | { | |
9fd3625f L |
895 | struct type *type; |
896 | ||
ad068eab UW |
897 | switch (tdesc_type->kind) |
898 | { | |
899 | /* Predefined types. */ | |
81516450 DE |
900 | case TDESC_TYPE_BOOL: |
901 | return builtin_type (gdbarch)->builtin_bool; | |
902 | ||
ad068eab | 903 | case TDESC_TYPE_INT8: |
df4df182 | 904 | return builtin_type (gdbarch)->builtin_int8; |
ad068eab UW |
905 | |
906 | case TDESC_TYPE_INT16: | |
df4df182 | 907 | return builtin_type (gdbarch)->builtin_int16; |
ad068eab UW |
908 | |
909 | case TDESC_TYPE_INT32: | |
df4df182 | 910 | return builtin_type (gdbarch)->builtin_int32; |
ad068eab UW |
911 | |
912 | case TDESC_TYPE_INT64: | |
df4df182 | 913 | return builtin_type (gdbarch)->builtin_int64; |
ad068eab UW |
914 | |
915 | case TDESC_TYPE_INT128: | |
df4df182 | 916 | return builtin_type (gdbarch)->builtin_int128; |
ad068eab UW |
917 | |
918 | case TDESC_TYPE_UINT8: | |
df4df182 | 919 | return builtin_type (gdbarch)->builtin_uint8; |
ad068eab UW |
920 | |
921 | case TDESC_TYPE_UINT16: | |
df4df182 | 922 | return builtin_type (gdbarch)->builtin_uint16; |
ad068eab UW |
923 | |
924 | case TDESC_TYPE_UINT32: | |
df4df182 | 925 | return builtin_type (gdbarch)->builtin_uint32; |
ad068eab UW |
926 | |
927 | case TDESC_TYPE_UINT64: | |
df4df182 | 928 | return builtin_type (gdbarch)->builtin_uint64; |
ad068eab UW |
929 | |
930 | case TDESC_TYPE_UINT128: | |
df4df182 | 931 | return builtin_type (gdbarch)->builtin_uint128; |
ad068eab UW |
932 | |
933 | case TDESC_TYPE_CODE_PTR: | |
934 | return builtin_type (gdbarch)->builtin_func_ptr; | |
935 | ||
936 | case TDESC_TYPE_DATA_PTR: | |
937 | return builtin_type (gdbarch)->builtin_data_ptr; | |
938 | ||
9fd3625f L |
939 | default: |
940 | break; | |
941 | } | |
942 | ||
943 | type = tdesc_find_type (gdbarch, tdesc_type->name); | |
944 | if (type) | |
945 | return type; | |
946 | ||
947 | switch (tdesc_type->kind) | |
948 | { | |
ad068eab | 949 | case TDESC_TYPE_IEEE_SINGLE: |
e9bb382b | 950 | return arch_float_type (gdbarch, -1, "builtin_type_ieee_single", |
27067745 | 951 | floatformats_ieee_single); |
ad068eab UW |
952 | |
953 | case TDESC_TYPE_IEEE_DOUBLE: | |
e9bb382b | 954 | return arch_float_type (gdbarch, -1, "builtin_type_ieee_double", |
27067745 | 955 | floatformats_ieee_double); |
ad068eab UW |
956 | |
957 | case TDESC_TYPE_ARM_FPA_EXT: | |
e9bb382b | 958 | return arch_float_type (gdbarch, -1, "builtin_type_arm_ext", |
27067745 | 959 | floatformats_arm_ext); |
ad068eab | 960 | |
9fd3625f L |
961 | case TDESC_TYPE_I387_EXT: |
962 | return arch_float_type (gdbarch, -1, "builtin_type_i387_ext", | |
963 | floatformats_i387_ext); | |
964 | ||
ad068eab UW |
965 | /* Types defined by a target feature. */ |
966 | case TDESC_TYPE_VECTOR: | |
967 | { | |
968 | struct type *type, *field_type; | |
969 | ||
970 | field_type = tdesc_gdb_type (gdbarch, tdesc_type->u.v.type); | |
971 | type = init_vector_type (field_type, tdesc_type->u.v.count); | |
972 | TYPE_NAME (type) = xstrdup (tdesc_type->name); | |
973 | ||
974 | return type; | |
975 | } | |
976 | ||
f5dff777 DJ |
977 | case TDESC_TYPE_STRUCT: |
978 | { | |
979 | struct type *type, *field_type; | |
980 | struct tdesc_type_field *f; | |
981 | int ix; | |
982 | ||
983 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
984 | TYPE_NAME (type) = xstrdup (tdesc_type->name); | |
985 | TYPE_TAG_NAME (type) = TYPE_NAME (type); | |
986 | ||
987 | for (ix = 0; | |
988 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
989 | ix++) | |
990 | { | |
81516450 | 991 | if (f->start != -1 && f->end != -1) |
f5dff777 DJ |
992 | { |
993 | /* Bitfield. */ | |
994 | struct field *fld; | |
995 | struct type *field_type; | |
996 | int bitsize, total_size; | |
997 | ||
81516450 | 998 | /* This invariant should be preserved while creating types. */ |
f5dff777 | 999 | gdb_assert (tdesc_type->u.u.size != 0); |
81516450 DE |
1000 | if (f->type != NULL) |
1001 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
1002 | else if (tdesc_type->u.u.size > 4) | |
f5dff777 DJ |
1003 | field_type = builtin_type (gdbarch)->builtin_uint64; |
1004 | else | |
1005 | field_type = builtin_type (gdbarch)->builtin_uint32; | |
1006 | ||
1007 | fld = append_composite_type_field_raw (type, xstrdup (f->name), | |
1008 | field_type); | |
1009 | ||
1010 | /* For little-endian, BITPOS counts from the LSB of | |
1011 | the structure and marks the LSB of the field. For | |
1012 | big-endian, BITPOS counts from the MSB of the | |
1013 | structure and marks the MSB of the field. Either | |
1014 | way, it is the number of bits to the "left" of the | |
1015 | field. To calculate this in big-endian, we need | |
1016 | the total size of the structure. */ | |
1017 | bitsize = f->end - f->start + 1; | |
1018 | total_size = tdesc_type->u.u.size * TARGET_CHAR_BIT; | |
1019 | if (gdbarch_bits_big_endian (gdbarch)) | |
f41f5e61 | 1020 | SET_FIELD_BITPOS (fld[0], total_size - f->start - bitsize); |
f5dff777 | 1021 | else |
f41f5e61 | 1022 | SET_FIELD_BITPOS (fld[0], f->start); |
f5dff777 DJ |
1023 | FIELD_BITSIZE (fld[0]) = bitsize; |
1024 | } | |
1025 | else | |
1026 | { | |
81516450 | 1027 | gdb_assert (f->start == -1 && f->end == -1); |
f5dff777 DJ |
1028 | field_type = tdesc_gdb_type (gdbarch, f->type); |
1029 | append_composite_type_field (type, xstrdup (f->name), | |
1030 | field_type); | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | if (tdesc_type->u.u.size != 0) | |
1035 | TYPE_LENGTH (type) = tdesc_type->u.u.size; | |
1036 | return type; | |
1037 | } | |
1038 | ||
ad068eab UW |
1039 | case TDESC_TYPE_UNION: |
1040 | { | |
1041 | struct type *type, *field_type; | |
1042 | struct tdesc_type_field *f; | |
1043 | int ix; | |
1044 | ||
e9bb382b | 1045 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
ad068eab UW |
1046 | TYPE_NAME (type) = xstrdup (tdesc_type->name); |
1047 | ||
1048 | for (ix = 0; | |
1049 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
1050 | ix++) | |
1051 | { | |
1052 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
1053 | append_composite_type_field (type, xstrdup (f->name), field_type); | |
1054 | ||
f5dff777 | 1055 | /* If any of the children of a union are vectors, flag the |
ad068eab UW |
1056 | union as a vector also. This allows e.g. a union of two |
1057 | vector types to show up automatically in "info vector". */ | |
1058 | if (TYPE_VECTOR (field_type)) | |
1059 | TYPE_VECTOR (type) = 1; | |
1060 | } | |
f5dff777 DJ |
1061 | return type; |
1062 | } | |
1063 | ||
1064 | case TDESC_TYPE_FLAGS: | |
1065 | { | |
81516450 | 1066 | struct tdesc_type_field *f; |
f5dff777 DJ |
1067 | int ix; |
1068 | ||
3494b66d | 1069 | type = arch_flags_type (gdbarch, tdesc_type->name, |
81516450 DE |
1070 | tdesc_type->u.u.size); |
1071 | for (ix = 0; | |
1072 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
1073 | ix++) | |
1074 | { | |
1075 | struct type *field_type; | |
1076 | int bitsize = f->end - f->start + 1; | |
1077 | ||
1078 | gdb_assert (f->type != NULL); | |
1079 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
1080 | append_flags_type_field (type, f->start, bitsize, | |
1081 | field_type, f->name); | |
1082 | } | |
1083 | ||
1084 | return type; | |
1085 | } | |
1086 | ||
1087 | case TDESC_TYPE_ENUM: | |
1088 | { | |
1089 | struct tdesc_type_field *f; | |
1090 | int ix; | |
1091 | ||
1092 | type = arch_type (gdbarch, TYPE_CODE_ENUM, | |
1093 | tdesc_type->u.u.size, tdesc_type->name); | |
1094 | TYPE_UNSIGNED (type) = 1; | |
f5dff777 | 1095 | for (ix = 0; |
81516450 | 1096 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); |
f5dff777 | 1097 | ix++) |
81516450 DE |
1098 | { |
1099 | struct field *fld | |
1100 | = append_composite_type_field_raw (type, xstrdup (f->name), | |
1101 | NULL); | |
1102 | ||
1103 | SET_FIELD_BITPOS (fld[0], f->start); | |
1104 | } | |
ad068eab UW |
1105 | |
1106 | return type; | |
1107 | } | |
1108 | } | |
1109 | ||
1110 | internal_error (__FILE__, __LINE__, | |
1111 | "Type \"%s\" has an unknown kind %d", | |
1112 | tdesc_type->name, tdesc_type->kind); | |
1113 | } | |
123dc839 DJ |
1114 | \f |
1115 | ||
1116 | /* Support for registers from target descriptions. */ | |
1117 | ||
1118 | /* Construct the per-gdbarch data. */ | |
1119 | ||
1120 | static void * | |
1121 | tdesc_data_init (struct obstack *obstack) | |
1122 | { | |
1123 | struct tdesc_arch_data *data; | |
1124 | ||
1125 | data = OBSTACK_ZALLOC (obstack, struct tdesc_arch_data); | |
1126 | return data; | |
1127 | } | |
1128 | ||
1129 | /* Similar, but for the temporary copy used during architecture | |
1130 | initialization. */ | |
1131 | ||
1132 | struct tdesc_arch_data * | |
1133 | tdesc_data_alloc (void) | |
1134 | { | |
41bf6aca | 1135 | return XCNEW (struct tdesc_arch_data); |
123dc839 DJ |
1136 | } |
1137 | ||
1138 | /* Free something allocated by tdesc_data_alloc, if it is not going | |
1139 | to be used (for instance if it was unsuitable for the | |
1140 | architecture). */ | |
1141 | ||
1142 | void | |
1143 | tdesc_data_cleanup (void *data_untyped) | |
1144 | { | |
19ba03f4 | 1145 | struct tdesc_arch_data *data = (struct tdesc_arch_data *) data_untyped; |
123dc839 | 1146 | |
ad068eab | 1147 | VEC_free (tdesc_arch_reg, data->arch_regs); |
123dc839 DJ |
1148 | xfree (data); |
1149 | } | |
1150 | ||
1151 | /* Search FEATURE for a register named NAME. */ | |
1152 | ||
7cc46491 DJ |
1153 | static struct tdesc_reg * |
1154 | tdesc_find_register_early (const struct tdesc_feature *feature, | |
1155 | const char *name) | |
123dc839 DJ |
1156 | { |
1157 | int ixr; | |
1158 | struct tdesc_reg *reg; | |
1159 | ||
1160 | for (ixr = 0; | |
1161 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1162 | ixr++) | |
1163 | if (strcasecmp (reg->name, name) == 0) | |
7cc46491 | 1164 | return reg; |
123dc839 | 1165 | |
7cc46491 DJ |
1166 | return NULL; |
1167 | } | |
1168 | ||
1169 | /* Search FEATURE for a register named NAME. Assign REGNO to it. */ | |
1170 | ||
1171 | int | |
1172 | tdesc_numbered_register (const struct tdesc_feature *feature, | |
1173 | struct tdesc_arch_data *data, | |
1174 | int regno, const char *name) | |
1175 | { | |
ad068eab | 1176 | struct tdesc_arch_reg arch_reg = { 0 }; |
7cc46491 DJ |
1177 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); |
1178 | ||
1179 | if (reg == NULL) | |
1180 | return 0; | |
1181 | ||
1182 | /* Make sure the vector includes a REGNO'th element. */ | |
ad068eab UW |
1183 | while (regno >= VEC_length (tdesc_arch_reg, data->arch_regs)) |
1184 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &arch_reg); | |
1185 | ||
1186 | arch_reg.reg = reg; | |
1187 | VEC_replace (tdesc_arch_reg, data->arch_regs, regno, &arch_reg); | |
7cc46491 | 1188 | return 1; |
123dc839 DJ |
1189 | } |
1190 | ||
58d6951d DJ |
1191 | /* Search FEATURE for a register named NAME, but do not assign a fixed |
1192 | register number to it. */ | |
1193 | ||
1194 | int | |
1195 | tdesc_unnumbered_register (const struct tdesc_feature *feature, | |
1196 | const char *name) | |
1197 | { | |
1198 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
1199 | ||
1200 | if (reg == NULL) | |
1201 | return 0; | |
1202 | ||
1203 | return 1; | |
1204 | } | |
1205 | ||
7cc46491 DJ |
1206 | /* Search FEATURE for a register whose name is in NAMES and assign |
1207 | REGNO to it. */ | |
123dc839 DJ |
1208 | |
1209 | int | |
1210 | tdesc_numbered_register_choices (const struct tdesc_feature *feature, | |
1211 | struct tdesc_arch_data *data, | |
1212 | int regno, const char *const names[]) | |
1213 | { | |
1214 | int i; | |
1215 | ||
1216 | for (i = 0; names[i] != NULL; i++) | |
1217 | if (tdesc_numbered_register (feature, data, regno, names[i])) | |
1218 | return 1; | |
1219 | ||
1220 | return 0; | |
1221 | } | |
1222 | ||
7cc46491 DJ |
1223 | /* Search FEATURE for a register named NAME, and return its size in |
1224 | bits. The register must exist. */ | |
1225 | ||
1226 | int | |
1227 | tdesc_register_size (const struct tdesc_feature *feature, | |
1228 | const char *name) | |
1229 | { | |
1230 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
1231 | ||
1232 | gdb_assert (reg != NULL); | |
1233 | return reg->bitsize; | |
1234 | } | |
1235 | ||
123dc839 DJ |
1236 | /* Look up a register by its GDB internal register number. */ |
1237 | ||
ad068eab UW |
1238 | static struct tdesc_arch_reg * |
1239 | tdesc_find_arch_register (struct gdbarch *gdbarch, int regno) | |
123dc839 | 1240 | { |
123dc839 DJ |
1241 | struct tdesc_arch_data *data; |
1242 | ||
19ba03f4 | 1243 | data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); |
ad068eab UW |
1244 | if (regno < VEC_length (tdesc_arch_reg, data->arch_regs)) |
1245 | return VEC_index (tdesc_arch_reg, data->arch_regs, regno); | |
123dc839 DJ |
1246 | else |
1247 | return NULL; | |
1248 | } | |
1249 | ||
ad068eab UW |
1250 | static struct tdesc_reg * |
1251 | tdesc_find_register (struct gdbarch *gdbarch, int regno) | |
1252 | { | |
1253 | struct tdesc_arch_reg *reg = tdesc_find_arch_register (gdbarch, regno); | |
5d502164 | 1254 | |
ad068eab UW |
1255 | return reg? reg->reg : NULL; |
1256 | } | |
1257 | ||
f8b73d13 DJ |
1258 | /* Return the name of register REGNO, from the target description or |
1259 | from an architecture-provided pseudo_register_name method. */ | |
1260 | ||
1261 | const char * | |
d93859e2 | 1262 | tdesc_register_name (struct gdbarch *gdbarch, int regno) |
123dc839 | 1263 | { |
d93859e2 UW |
1264 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
1265 | int num_regs = gdbarch_num_regs (gdbarch); | |
1266 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
123dc839 DJ |
1267 | |
1268 | if (reg != NULL) | |
1269 | return reg->name; | |
1270 | ||
1271 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1272 | { | |
19ba03f4 SM |
1273 | struct tdesc_arch_data *data |
1274 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1275 | |
123dc839 | 1276 | gdb_assert (data->pseudo_register_name != NULL); |
d93859e2 | 1277 | return data->pseudo_register_name (gdbarch, regno); |
123dc839 DJ |
1278 | } |
1279 | ||
1280 | return ""; | |
1281 | } | |
1282 | ||
58d6951d | 1283 | struct type * |
123dc839 DJ |
1284 | tdesc_register_type (struct gdbarch *gdbarch, int regno) |
1285 | { | |
ad068eab UW |
1286 | struct tdesc_arch_reg *arch_reg = tdesc_find_arch_register (gdbarch, regno); |
1287 | struct tdesc_reg *reg = arch_reg? arch_reg->reg : NULL; | |
123dc839 DJ |
1288 | int num_regs = gdbarch_num_regs (gdbarch); |
1289 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
1290 | ||
1291 | if (reg == NULL && regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1292 | { | |
19ba03f4 SM |
1293 | struct tdesc_arch_data *data |
1294 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1295 | |
123dc839 DJ |
1296 | gdb_assert (data->pseudo_register_type != NULL); |
1297 | return data->pseudo_register_type (gdbarch, regno); | |
1298 | } | |
1299 | ||
1300 | if (reg == NULL) | |
1301 | /* Return "int0_t", since "void" has a misleading size of one. */ | |
df4df182 | 1302 | return builtin_type (gdbarch)->builtin_int0; |
123dc839 | 1303 | |
ad068eab | 1304 | if (arch_reg->type == NULL) |
123dc839 | 1305 | { |
ad068eab UW |
1306 | /* First check for a predefined or target defined type. */ |
1307 | if (reg->tdesc_type) | |
1308 | arch_reg->type = tdesc_gdb_type (gdbarch, reg->tdesc_type); | |
1309 | ||
1310 | /* Next try size-sensitive type shortcuts. */ | |
1311 | else if (strcmp (reg->type, "float") == 0) | |
1312 | { | |
1313 | if (reg->bitsize == gdbarch_float_bit (gdbarch)) | |
1314 | arch_reg->type = builtin_type (gdbarch)->builtin_float; | |
1315 | else if (reg->bitsize == gdbarch_double_bit (gdbarch)) | |
1316 | arch_reg->type = builtin_type (gdbarch)->builtin_double; | |
1317 | else if (reg->bitsize == gdbarch_long_double_bit (gdbarch)) | |
1318 | arch_reg->type = builtin_type (gdbarch)->builtin_long_double; | |
1319 | else | |
1320 | { | |
1321 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
1322 | reg->name, reg->bitsize); | |
1323 | arch_reg->type = builtin_type (gdbarch)->builtin_double; | |
1324 | } | |
1325 | } | |
1326 | else if (strcmp (reg->type, "int") == 0) | |
1327 | { | |
1328 | if (reg->bitsize == gdbarch_long_bit (gdbarch)) | |
1329 | arch_reg->type = builtin_type (gdbarch)->builtin_long; | |
1330 | else if (reg->bitsize == TARGET_CHAR_BIT) | |
1331 | arch_reg->type = builtin_type (gdbarch)->builtin_char; | |
1332 | else if (reg->bitsize == gdbarch_short_bit (gdbarch)) | |
1333 | arch_reg->type = builtin_type (gdbarch)->builtin_short; | |
1334 | else if (reg->bitsize == gdbarch_int_bit (gdbarch)) | |
1335 | arch_reg->type = builtin_type (gdbarch)->builtin_int; | |
1336 | else if (reg->bitsize == gdbarch_long_long_bit (gdbarch)) | |
1337 | arch_reg->type = builtin_type (gdbarch)->builtin_long_long; | |
1338 | else if (reg->bitsize == gdbarch_ptr_bit (gdbarch)) | |
c378eb4e | 1339 | /* A bit desperate by this point... */ |
ad068eab UW |
1340 | arch_reg->type = builtin_type (gdbarch)->builtin_data_ptr; |
1341 | else | |
1342 | { | |
1343 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
1344 | reg->name, reg->bitsize); | |
1345 | arch_reg->type = builtin_type (gdbarch)->builtin_long; | |
1346 | } | |
1347 | } | |
1348 | ||
1349 | if (arch_reg->type == NULL) | |
1350 | internal_error (__FILE__, __LINE__, | |
1351 | "Register \"%s\" has an unknown type \"%s\"", | |
1352 | reg->name, reg->type); | |
123dc839 | 1353 | } |
123dc839 | 1354 | |
ad068eab | 1355 | return arch_reg->type; |
123dc839 DJ |
1356 | } |
1357 | ||
1358 | static int | |
1359 | tdesc_remote_register_number (struct gdbarch *gdbarch, int regno) | |
1360 | { | |
1361 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); | |
1362 | ||
1363 | if (reg != NULL) | |
1364 | return reg->target_regnum; | |
1365 | else | |
1366 | return -1; | |
1367 | } | |
1368 | ||
1369 | /* Check whether REGNUM is a member of REGGROUP. Registers from the | |
1370 | target description may be classified as general, float, or vector. | |
f8b73d13 DJ |
1371 | Unlike a gdbarch register_reggroup_p method, this function will |
1372 | return -1 if it does not know; the caller should handle registers | |
1373 | with no specified group. | |
123dc839 DJ |
1374 | |
1375 | Arbitrary strings (other than "general", "float", and "vector") | |
1376 | from the description are not used; they cause the register to be | |
1377 | displayed in "info all-registers" but excluded from "info | |
1378 | registers" et al. The names of containing features are also not | |
1379 | used. This might be extended to display registers in some more | |
1380 | useful groupings. | |
1381 | ||
1382 | The save-restore flag is also implemented here. */ | |
1383 | ||
f8b73d13 DJ |
1384 | int |
1385 | tdesc_register_in_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1386 | struct reggroup *reggroup) | |
123dc839 | 1387 | { |
123dc839 DJ |
1388 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
1389 | ||
123dc839 DJ |
1390 | if (reg != NULL && reg->group != NULL) |
1391 | { | |
1392 | int general_p = 0, float_p = 0, vector_p = 0; | |
1393 | ||
1394 | if (strcmp (reg->group, "general") == 0) | |
1395 | general_p = 1; | |
1396 | else if (strcmp (reg->group, "float") == 0) | |
1397 | float_p = 1; | |
1398 | else if (strcmp (reg->group, "vector") == 0) | |
1399 | vector_p = 1; | |
1400 | ||
1401 | if (reggroup == float_reggroup) | |
1402 | return float_p; | |
1403 | ||
1404 | if (reggroup == vector_reggroup) | |
1405 | return vector_p; | |
1406 | ||
1407 | if (reggroup == general_reggroup) | |
1408 | return general_p; | |
1409 | } | |
1410 | ||
1411 | if (reg != NULL | |
1412 | && (reggroup == save_reggroup || reggroup == restore_reggroup)) | |
1413 | return reg->save_restore; | |
1414 | ||
f8b73d13 DJ |
1415 | return -1; |
1416 | } | |
1417 | ||
1418 | /* Check whether REGNUM is a member of REGGROUP. Registers with no | |
1419 | group specified go to the default reggroup function and are handled | |
1420 | by type. */ | |
1421 | ||
1422 | static int | |
1423 | tdesc_register_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1424 | struct reggroup *reggroup) | |
1425 | { | |
1426 | int num_regs = gdbarch_num_regs (gdbarch); | |
1427 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
1428 | int ret; | |
1429 | ||
1430 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1431 | { | |
19ba03f4 SM |
1432 | struct tdesc_arch_data *data |
1433 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1434 | |
58d6951d DJ |
1435 | if (data->pseudo_register_reggroup_p != NULL) |
1436 | return data->pseudo_register_reggroup_p (gdbarch, regno, reggroup); | |
1437 | /* Otherwise fall through to the default reggroup_p. */ | |
f8b73d13 DJ |
1438 | } |
1439 | ||
1440 | ret = tdesc_register_in_reggroup_p (gdbarch, regno, reggroup); | |
1441 | if (ret != -1) | |
1442 | return ret; | |
1443 | ||
123dc839 DJ |
1444 | return default_register_reggroup_p (gdbarch, regno, reggroup); |
1445 | } | |
1446 | ||
1447 | /* Record architecture-specific functions to call for pseudo-register | |
1448 | support. */ | |
1449 | ||
1450 | void | |
1451 | set_tdesc_pseudo_register_name (struct gdbarch *gdbarch, | |
1452 | gdbarch_register_name_ftype *pseudo_name) | |
1453 | { | |
19ba03f4 SM |
1454 | struct tdesc_arch_data *data |
1455 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
123dc839 DJ |
1456 | |
1457 | data->pseudo_register_name = pseudo_name; | |
1458 | } | |
1459 | ||
1460 | void | |
1461 | set_tdesc_pseudo_register_type (struct gdbarch *gdbarch, | |
1462 | gdbarch_register_type_ftype *pseudo_type) | |
1463 | { | |
19ba03f4 SM |
1464 | struct tdesc_arch_data *data |
1465 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
123dc839 DJ |
1466 | |
1467 | data->pseudo_register_type = pseudo_type; | |
1468 | } | |
1469 | ||
1470 | void | |
1471 | set_tdesc_pseudo_register_reggroup_p | |
1472 | (struct gdbarch *gdbarch, | |
1473 | gdbarch_register_reggroup_p_ftype *pseudo_reggroup_p) | |
1474 | { | |
19ba03f4 SM |
1475 | struct tdesc_arch_data *data |
1476 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
123dc839 DJ |
1477 | |
1478 | data->pseudo_register_reggroup_p = pseudo_reggroup_p; | |
1479 | } | |
1480 | ||
1481 | /* Update GDBARCH to use the target description for registers. */ | |
1482 | ||
1483 | void | |
1484 | tdesc_use_registers (struct gdbarch *gdbarch, | |
7cc46491 | 1485 | const struct target_desc *target_desc, |
123dc839 DJ |
1486 | struct tdesc_arch_data *early_data) |
1487 | { | |
1488 | int num_regs = gdbarch_num_regs (gdbarch); | |
c6913b7d | 1489 | int ixf, ixr; |
123dc839 DJ |
1490 | struct tdesc_feature *feature; |
1491 | struct tdesc_reg *reg; | |
1492 | struct tdesc_arch_data *data; | |
ad068eab | 1493 | struct tdesc_arch_reg *arch_reg, new_arch_reg = { 0 }; |
123dc839 DJ |
1494 | htab_t reg_hash; |
1495 | ||
123dc839 DJ |
1496 | /* We can't use the description for registers if it doesn't describe |
1497 | any. This function should only be called after validating | |
1498 | registers, so the caller should know that registers are | |
1499 | included. */ | |
1500 | gdb_assert (tdesc_has_registers (target_desc)); | |
1501 | ||
19ba03f4 | 1502 | data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); |
ad068eab | 1503 | data->arch_regs = early_data->arch_regs; |
123dc839 DJ |
1504 | xfree (early_data); |
1505 | ||
1506 | /* Build up a set of all registers, so that we can assign register | |
1507 | numbers where needed. The hash table expands as necessary, so | |
1508 | the initial size is arbitrary. */ | |
1509 | reg_hash = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL); | |
1510 | for (ixf = 0; | |
1511 | VEC_iterate (tdesc_feature_p, target_desc->features, ixf, feature); | |
1512 | ixf++) | |
1513 | for (ixr = 0; | |
1514 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1515 | ixr++) | |
1516 | { | |
1517 | void **slot = htab_find_slot (reg_hash, reg, INSERT); | |
1518 | ||
1519 | *slot = reg; | |
1520 | } | |
1521 | ||
1522 | /* Remove any registers which were assigned numbers by the | |
1523 | architecture. */ | |
ad068eab UW |
1524 | for (ixr = 0; |
1525 | VEC_iterate (tdesc_arch_reg, data->arch_regs, ixr, arch_reg); | |
1526 | ixr++) | |
1527 | if (arch_reg->reg) | |
1528 | htab_remove_elt (reg_hash, arch_reg->reg); | |
123dc839 DJ |
1529 | |
1530 | /* Assign numbers to the remaining registers and add them to the | |
f57d151a | 1531 | list of registers. The new numbers are always above gdbarch_num_regs. |
123dc839 DJ |
1532 | Iterate over the features, not the hash table, so that the order |
1533 | matches that in the target description. */ | |
1534 | ||
ad068eab UW |
1535 | gdb_assert (VEC_length (tdesc_arch_reg, data->arch_regs) <= num_regs); |
1536 | while (VEC_length (tdesc_arch_reg, data->arch_regs) < num_regs) | |
1537 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); | |
123dc839 DJ |
1538 | for (ixf = 0; |
1539 | VEC_iterate (tdesc_feature_p, target_desc->features, ixf, feature); | |
1540 | ixf++) | |
1541 | for (ixr = 0; | |
1542 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1543 | ixr++) | |
1544 | if (htab_find (reg_hash, reg) != NULL) | |
1545 | { | |
ad068eab UW |
1546 | new_arch_reg.reg = reg; |
1547 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); | |
123dc839 DJ |
1548 | num_regs++; |
1549 | } | |
1550 | ||
1551 | htab_delete (reg_hash); | |
1552 | ||
1553 | /* Update the architecture. */ | |
1554 | set_gdbarch_num_regs (gdbarch, num_regs); | |
1555 | set_gdbarch_register_name (gdbarch, tdesc_register_name); | |
1556 | set_gdbarch_register_type (gdbarch, tdesc_register_type); | |
1557 | set_gdbarch_remote_register_number (gdbarch, | |
1558 | tdesc_remote_register_number); | |
1559 | set_gdbarch_register_reggroup_p (gdbarch, tdesc_register_reggroup_p); | |
1560 | } | |
1561 | \f | |
1562 | ||
f49ff000 YQ |
1563 | /* See arch/tdesc.h. */ |
1564 | ||
123dc839 DJ |
1565 | void |
1566 | tdesc_create_reg (struct tdesc_feature *feature, const char *name, | |
1567 | int regnum, int save_restore, const char *group, | |
1568 | int bitsize, const char *type) | |
1569 | { | |
72ddacb7 YQ |
1570 | tdesc_reg *reg = new tdesc_reg (feature, name, regnum, save_restore, |
1571 | group, bitsize, type); | |
123dc839 DJ |
1572 | |
1573 | VEC_safe_push (tdesc_reg_p, feature->registers, reg); | |
1574 | } | |
1575 | ||
f49ff000 YQ |
1576 | /* See arch/tdesc.h. */ |
1577 | ||
ad068eab UW |
1578 | struct tdesc_type * |
1579 | tdesc_create_vector (struct tdesc_feature *feature, const char *name, | |
1580 | struct tdesc_type *field_type, int count) | |
1581 | { | |
72ddacb7 | 1582 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_VECTOR); |
ad068eab | 1583 | |
ad068eab UW |
1584 | type->u.v.type = field_type; |
1585 | type->u.v.count = count; | |
1586 | ||
1587 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1588 | return type; | |
1589 | } | |
1590 | ||
f49ff000 YQ |
1591 | /* See arch/tdesc.h. */ |
1592 | ||
f5dff777 DJ |
1593 | struct tdesc_type * |
1594 | tdesc_create_struct (struct tdesc_feature *feature, const char *name) | |
1595 | { | |
72ddacb7 | 1596 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_STRUCT); |
f5dff777 DJ |
1597 | |
1598 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1599 | return type; | |
1600 | } | |
1601 | ||
f49ff000 | 1602 | /* See arch/tdesc.h. */ |
f5dff777 DJ |
1603 | |
1604 | void | |
54157a25 | 1605 | tdesc_set_struct_size (struct tdesc_type *type, int size) |
f5dff777 DJ |
1606 | { |
1607 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); | |
54157a25 | 1608 | gdb_assert (size > 0); |
f5dff777 DJ |
1609 | type->u.u.size = size; |
1610 | } | |
1611 | ||
f49ff000 YQ |
1612 | /* See arch/tdesc.h. */ |
1613 | ||
ad068eab UW |
1614 | struct tdesc_type * |
1615 | tdesc_create_union (struct tdesc_feature *feature, const char *name) | |
1616 | { | |
72ddacb7 | 1617 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_UNION); |
ad068eab UW |
1618 | |
1619 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1620 | return type; | |
1621 | } | |
1622 | ||
f49ff000 YQ |
1623 | /* See arch/tdesc.h. */ |
1624 | ||
f5dff777 DJ |
1625 | struct tdesc_type * |
1626 | tdesc_create_flags (struct tdesc_feature *feature, const char *name, | |
54157a25 | 1627 | int size) |
f5dff777 | 1628 | { |
72ddacb7 | 1629 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_FLAGS); |
f5dff777 | 1630 | |
54157a25 DE |
1631 | gdb_assert (size > 0); |
1632 | ||
81516450 | 1633 | type->u.u.size = size; |
f5dff777 DJ |
1634 | |
1635 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1636 | return type; | |
1637 | } | |
1638 | ||
81516450 DE |
1639 | struct tdesc_type * |
1640 | tdesc_create_enum (struct tdesc_feature *feature, const char *name, | |
1641 | int size) | |
1642 | { | |
72ddacb7 | 1643 | struct tdesc_type *type = new tdesc_type (name, TDESC_TYPE_ENUM); |
81516450 DE |
1644 | |
1645 | gdb_assert (size > 0); | |
1646 | ||
81516450 DE |
1647 | type->u.u.size = size; |
1648 | ||
1649 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1650 | return type; | |
1651 | } | |
1652 | ||
f49ff000 | 1653 | /* See arch/tdesc.h. */ |
f5dff777 | 1654 | |
ad068eab UW |
1655 | void |
1656 | tdesc_add_field (struct tdesc_type *type, const char *field_name, | |
1657 | struct tdesc_type *field_type) | |
1658 | { | |
1659 | struct tdesc_type_field f = { 0 }; | |
1660 | ||
f5dff777 DJ |
1661 | gdb_assert (type->kind == TDESC_TYPE_UNION |
1662 | || type->kind == TDESC_TYPE_STRUCT); | |
ad068eab UW |
1663 | |
1664 | f.name = xstrdup (field_name); | |
1665 | f.type = field_type; | |
81516450 DE |
1666 | /* Initialize these values so we know this is not a bit-field |
1667 | when we print-c-tdesc. */ | |
1668 | f.start = -1; | |
1669 | f.end = -1; | |
ad068eab UW |
1670 | |
1671 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
1672 | } | |
1673 | ||
f5dff777 | 1674 | void |
81516450 DE |
1675 | tdesc_add_typed_bitfield (struct tdesc_type *type, const char *field_name, |
1676 | int start, int end, struct tdesc_type *field_type) | |
f5dff777 DJ |
1677 | { |
1678 | struct tdesc_type_field f = { 0 }; | |
1679 | ||
81516450 DE |
1680 | gdb_assert (type->kind == TDESC_TYPE_STRUCT |
1681 | || type->kind == TDESC_TYPE_FLAGS); | |
1682 | gdb_assert (start >= 0 && end >= start); | |
f5dff777 DJ |
1683 | |
1684 | f.name = xstrdup (field_name); | |
1685 | f.start = start; | |
1686 | f.end = end; | |
81516450 | 1687 | f.type = field_type; |
f5dff777 DJ |
1688 | |
1689 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
1690 | } | |
1691 | ||
f49ff000 | 1692 | /* See arch/tdesc.h. */ |
81516450 DE |
1693 | |
1694 | void | |
1695 | tdesc_add_bitfield (struct tdesc_type *type, const char *field_name, | |
1696 | int start, int end) | |
1697 | { | |
1698 | struct tdesc_type *field_type; | |
1699 | ||
1700 | gdb_assert (start >= 0 && end >= start); | |
1701 | ||
1702 | if (type->u.u.size > 4) | |
1703 | field_type = tdesc_predefined_type (TDESC_TYPE_UINT64); | |
1704 | else | |
1705 | field_type = tdesc_predefined_type (TDESC_TYPE_UINT32); | |
1706 | ||
1707 | tdesc_add_typed_bitfield (type, field_name, start, end, field_type); | |
1708 | } | |
1709 | ||
f49ff000 | 1710 | /* See arch/tdesc.h. */ |
81516450 | 1711 | |
f5dff777 DJ |
1712 | void |
1713 | tdesc_add_flag (struct tdesc_type *type, int start, | |
1714 | const char *flag_name) | |
1715 | { | |
81516450 | 1716 | struct tdesc_type_field f = { 0 }; |
f5dff777 | 1717 | |
81516450 DE |
1718 | gdb_assert (type->kind == TDESC_TYPE_FLAGS |
1719 | || type->kind == TDESC_TYPE_STRUCT); | |
f5dff777 DJ |
1720 | |
1721 | f.name = xstrdup (flag_name); | |
1722 | f.start = start; | |
81516450 DE |
1723 | f.end = start; |
1724 | f.type = tdesc_predefined_type (TDESC_TYPE_BOOL); | |
f5dff777 | 1725 | |
81516450 DE |
1726 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); |
1727 | } | |
1728 | ||
1729 | void | |
1730 | tdesc_add_enum_value (struct tdesc_type *type, int value, | |
1731 | const char *name) | |
1732 | { | |
1733 | struct tdesc_type_field f = { 0 }; | |
1734 | ||
1735 | gdb_assert (type->kind == TDESC_TYPE_ENUM); | |
1736 | ||
1737 | f.name = xstrdup (name); | |
1738 | f.start = value; | |
1739 | f.end = -1; | |
1740 | f.type = tdesc_predefined_type (TDESC_TYPE_INT32); | |
1741 | ||
1742 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
f5dff777 DJ |
1743 | } |
1744 | ||
f49ff000 YQ |
1745 | /* See arch/tdesc.h. */ |
1746 | ||
123dc839 | 1747 | struct tdesc_feature * |
0abe8a89 YQ |
1748 | tdesc_create_feature (struct target_desc *tdesc, const char *name, |
1749 | const char *xml) | |
123dc839 | 1750 | { |
72ddacb7 | 1751 | struct tdesc_feature *new_feature = new tdesc_feature (name); |
123dc839 DJ |
1752 | |
1753 | VEC_safe_push (tdesc_feature_p, tdesc->features, new_feature); | |
1754 | return new_feature; | |
1755 | } | |
1756 | ||
424163ea DJ |
1757 | struct target_desc * |
1758 | allocate_target_description (void) | |
1759 | { | |
b468ff4c | 1760 | return new target_desc (); |
424163ea | 1761 | } |
29709017 | 1762 | |
23181151 DJ |
1763 | static void |
1764 | free_target_description (void *arg) | |
1765 | { | |
19ba03f4 | 1766 | struct target_desc *target_desc = (struct target_desc *) arg; |
e35359c5 | 1767 | |
b468ff4c | 1768 | delete target_desc; |
23181151 DJ |
1769 | } |
1770 | ||
1771 | struct cleanup * | |
1772 | make_cleanup_free_target_description (struct target_desc *target_desc) | |
1773 | { | |
1774 | return make_cleanup (free_target_description, target_desc); | |
1775 | } | |
1776 | ||
e35359c5 UW |
1777 | void |
1778 | tdesc_add_compatible (struct target_desc *target_desc, | |
1779 | const struct bfd_arch_info *compatible) | |
1780 | { | |
1781 | const struct bfd_arch_info *compat; | |
1782 | int ix; | |
1783 | ||
1784 | /* If this instance of GDB is compiled without BFD support for the | |
1785 | compatible architecture, simply ignore it -- we would not be able | |
1786 | to handle it anyway. */ | |
1787 | if (compatible == NULL) | |
1788 | return; | |
1789 | ||
1790 | for (ix = 0; VEC_iterate (arch_p, target_desc->compatible, ix, compat); | |
1791 | ix++) | |
1792 | if (compat == compatible) | |
1793 | internal_error (__FILE__, __LINE__, | |
1794 | _("Attempted to add duplicate " | |
1795 | "compatible architecture \"%s\""), | |
1796 | compatible->printable_name); | |
1797 | ||
1798 | VEC_safe_push (arch_p, target_desc->compatible, compatible); | |
1799 | } | |
1800 | ||
29709017 DJ |
1801 | void |
1802 | set_tdesc_property (struct target_desc *target_desc, | |
1803 | const char *key, const char *value) | |
1804 | { | |
1805 | struct property *prop, new_prop; | |
1806 | int ix; | |
1807 | ||
1808 | gdb_assert (key != NULL && value != NULL); | |
1809 | ||
1810 | for (ix = 0; VEC_iterate (property_s, target_desc->properties, ix, prop); | |
1811 | ix++) | |
1812 | if (strcmp (prop->key, key) == 0) | |
1813 | internal_error (__FILE__, __LINE__, | |
1814 | _("Attempted to add duplicate property \"%s\""), key); | |
1815 | ||
23181151 DJ |
1816 | new_prop.key = xstrdup (key); |
1817 | new_prop.value = xstrdup (value); | |
29709017 DJ |
1818 | VEC_safe_push (property_s, target_desc->properties, &new_prop); |
1819 | } | |
23181151 | 1820 | |
5f035c07 YQ |
1821 | /* See arch/tdesc.h. */ |
1822 | ||
1823 | void | |
1824 | set_tdesc_architecture (struct target_desc *target_desc, | |
1825 | const char *name) | |
1826 | { | |
1827 | set_tdesc_architecture (target_desc, bfd_scan_arch (name)); | |
1828 | } | |
1829 | ||
23181151 DJ |
1830 | void |
1831 | set_tdesc_architecture (struct target_desc *target_desc, | |
1832 | const struct bfd_arch_info *arch) | |
1833 | { | |
1834 | target_desc->arch = arch; | |
1835 | } | |
08d16641 | 1836 | |
5f035c07 YQ |
1837 | /* See arch/tdesc.h. */ |
1838 | ||
1839 | void | |
1840 | set_tdesc_osabi (struct target_desc *target_desc, const char *name) | |
1841 | { | |
1842 | set_tdesc_osabi (target_desc, osabi_from_tdesc_string (name)); | |
1843 | } | |
1844 | ||
08d16641 PA |
1845 | void |
1846 | set_tdesc_osabi (struct target_desc *target_desc, enum gdb_osabi osabi) | |
1847 | { | |
1848 | target_desc->osabi = osabi; | |
1849 | } | |
23181151 DJ |
1850 | \f |
1851 | ||
1852 | static struct cmd_list_element *tdesc_set_cmdlist, *tdesc_show_cmdlist; | |
1853 | static struct cmd_list_element *tdesc_unset_cmdlist; | |
1854 | ||
1855 | /* Helper functions for the CLI commands. */ | |
1856 | ||
1857 | static void | |
1858 | set_tdesc_cmd (char *args, int from_tty) | |
1859 | { | |
635c7e8a | 1860 | help_list (tdesc_set_cmdlist, "set tdesc ", all_commands, gdb_stdout); |
23181151 DJ |
1861 | } |
1862 | ||
1863 | static void | |
1864 | show_tdesc_cmd (char *args, int from_tty) | |
1865 | { | |
1866 | cmd_show_list (tdesc_show_cmdlist, from_tty, ""); | |
1867 | } | |
1868 | ||
1869 | static void | |
1870 | unset_tdesc_cmd (char *args, int from_tty) | |
1871 | { | |
635c7e8a | 1872 | help_list (tdesc_unset_cmdlist, "unset tdesc ", all_commands, gdb_stdout); |
23181151 DJ |
1873 | } |
1874 | ||
1875 | static void | |
1876 | set_tdesc_filename_cmd (char *args, int from_tty, | |
1877 | struct cmd_list_element *c) | |
1878 | { | |
6ecd4729 PA |
1879 | xfree (target_description_filename); |
1880 | target_description_filename = xstrdup (tdesc_filename_cmd_string); | |
1881 | ||
23181151 DJ |
1882 | target_clear_description (); |
1883 | target_find_description (); | |
1884 | } | |
1885 | ||
1886 | static void | |
1887 | show_tdesc_filename_cmd (struct ui_file *file, int from_tty, | |
1888 | struct cmd_list_element *c, | |
1889 | const char *value) | |
1890 | { | |
6ecd4729 PA |
1891 | value = target_description_filename; |
1892 | ||
23181151 | 1893 | if (value != NULL && *value != '\0') |
3e43a32a | 1894 | printf_filtered (_("The target description will be read from \"%s\".\n"), |
23181151 DJ |
1895 | value); |
1896 | else | |
3e43a32a MS |
1897 | printf_filtered (_("The target description will be " |
1898 | "read from the target.\n")); | |
23181151 DJ |
1899 | } |
1900 | ||
1901 | static void | |
1902 | unset_tdesc_filename_cmd (char *args, int from_tty) | |
1903 | { | |
1904 | xfree (target_description_filename); | |
1905 | target_description_filename = NULL; | |
1906 | target_clear_description (); | |
1907 | target_find_description (); | |
1908 | } | |
1909 | ||
6eb1e6a8 YQ |
1910 | /* Print target description in C. */ |
1911 | ||
1912 | class print_c_tdesc : public tdesc_element_visitor | |
1913 | { | |
1914 | public: | |
1915 | print_c_tdesc (std::string &filename_after_features) | |
1916 | : m_filename_after_features (filename_after_features) | |
1917 | { | |
1918 | const char *inp; | |
1919 | char *outp; | |
1920 | const char *filename = lbasename (m_filename_after_features.c_str ()); | |
1921 | ||
1922 | m_function = (char *) xmalloc (strlen (filename) + 1); | |
1923 | for (inp = filename, outp = m_function; *inp != '\0'; inp++) | |
1924 | if (*inp == '.') | |
1925 | break; | |
1926 | else if (*inp == '-') | |
1927 | *outp++ = '_'; | |
1928 | else | |
1929 | *outp++ = *inp; | |
1930 | *outp = '\0'; | |
1931 | ||
1932 | /* Standard boilerplate. */ | |
1933 | printf_unfiltered ("/* THIS FILE IS GENERATED. " | |
1934 | "-*- buffer-read-only: t -*- vi" | |
1935 | ":set ro:\n"); | |
6eb1e6a8 YQ |
1936 | } |
1937 | ||
1938 | ~print_c_tdesc () | |
1939 | { | |
1940 | xfree (m_function); | |
1941 | } | |
1942 | ||
1943 | void visit_pre (const target_desc *e) override | |
1944 | { | |
25aa13e5 YQ |
1945 | printf_unfiltered (" Original: %s */\n\n", |
1946 | lbasename (m_filename_after_features.c_str ())); | |
1947 | ||
6eb1e6a8 YQ |
1948 | printf_unfiltered ("#include \"defs.h\"\n"); |
1949 | printf_unfiltered ("#include \"osabi.h\"\n"); | |
1950 | printf_unfiltered ("#include \"target-descriptions.h\"\n"); | |
1951 | printf_unfiltered ("\n"); | |
1952 | ||
1953 | printf_unfiltered ("struct target_desc *tdesc_%s;\n", m_function); | |
1954 | printf_unfiltered ("static void\n"); | |
1955 | printf_unfiltered ("initialize_tdesc_%s (void)\n", m_function); | |
1956 | printf_unfiltered ("{\n"); | |
1957 | printf_unfiltered | |
1958 | (" struct target_desc *result = allocate_target_description ();\n"); | |
1959 | ||
1960 | if (tdesc_architecture (e) != NULL) | |
1961 | { | |
1962 | printf_unfiltered | |
1963 | (" set_tdesc_architecture (result, bfd_scan_arch (\"%s\"));\n", | |
1964 | tdesc_architecture (e)->printable_name); | |
1965 | printf_unfiltered ("\n"); | |
1966 | } | |
1967 | if (tdesc_osabi (e) > GDB_OSABI_UNKNOWN | |
1968 | && tdesc_osabi (e) < GDB_OSABI_INVALID) | |
1969 | { | |
1970 | printf_unfiltered | |
1971 | (" set_tdesc_osabi (result, osabi_from_tdesc_string (\"%s\"));\n", | |
1972 | gdbarch_osabi_name (tdesc_osabi (e))); | |
1973 | printf_unfiltered ("\n"); | |
1974 | } | |
1975 | ||
1976 | int ix; | |
1977 | const struct bfd_arch_info *compatible; | |
1978 | struct property *prop; | |
1979 | ||
1980 | for (ix = 0; VEC_iterate (arch_p, e->compatible, ix, compatible); | |
1981 | ix++) | |
1982 | { | |
1983 | printf_unfiltered | |
1984 | (" tdesc_add_compatible (result, bfd_scan_arch (\"%s\"));\n", | |
1985 | compatible->printable_name); | |
1986 | } | |
1987 | ||
1988 | if (ix) | |
1989 | printf_unfiltered ("\n"); | |
1990 | ||
1991 | for (ix = 0; VEC_iterate (property_s, e->properties, ix, prop); | |
1992 | ix++) | |
1993 | { | |
1994 | printf_unfiltered (" set_tdesc_property (result, \"%s\", \"%s\");\n", | |
1995 | prop->key, prop->value); | |
1996 | } | |
1997 | printf_unfiltered (" struct tdesc_feature *feature;\n"); | |
1998 | } | |
1999 | ||
25aa13e5 | 2000 | void visit_pre (const tdesc_feature *e) override |
6eb1e6a8 YQ |
2001 | { |
2002 | printf_unfiltered ("\n feature = tdesc_create_feature (result, \"%s\");\n", | |
2003 | e->name); | |
2004 | } | |
2005 | ||
25aa13e5 YQ |
2006 | void visit_post (const tdesc_feature *e) override |
2007 | {} | |
2008 | ||
6eb1e6a8 YQ |
2009 | void visit_post (const target_desc *e) override |
2010 | { | |
2011 | printf_unfiltered ("\n tdesc_%s = result;\n", m_function); | |
2012 | printf_unfiltered ("}\n"); | |
2013 | } | |
2014 | ||
2015 | void visit (const tdesc_type *type) override | |
2016 | { | |
2017 | struct tdesc_type_field *f; | |
2018 | ||
2019 | /* Now we do some "filtering" in order to know which variables to | |
2020 | declare. This is needed because otherwise we would declare unused | |
2021 | variables `field_type' and `type'. */ | |
2022 | if (!m_printed_field_type) | |
2023 | { | |
2024 | printf_unfiltered (" struct tdesc_type *field_type;\n"); | |
2025 | m_printed_field_type = true; | |
2026 | } | |
2027 | ||
2028 | if ((type->kind == TDESC_TYPE_UNION | |
2029 | || type->kind == TDESC_TYPE_STRUCT | |
2030 | || type->kind == TDESC_TYPE_FLAGS | |
2031 | || type->kind == TDESC_TYPE_ENUM) | |
2032 | && VEC_length (tdesc_type_field, type->u.u.fields) > 0 | |
2033 | && !m_printed_type) | |
2034 | { | |
2035 | printf_unfiltered (" struct tdesc_type *type;\n"); | |
2036 | m_printed_type = true; | |
2037 | } | |
2038 | ||
2039 | switch (type->kind) | |
2040 | { | |
2041 | case TDESC_TYPE_VECTOR: | |
2042 | printf_unfiltered | |
2043 | (" field_type = tdesc_named_type (feature, \"%s\");\n", | |
2044 | type->u.v.type->name); | |
2045 | printf_unfiltered | |
2046 | (" tdesc_create_vector (feature, \"%s\", field_type, %d);\n", | |
2047 | type->name, type->u.v.count); | |
2048 | break; | |
2049 | case TDESC_TYPE_STRUCT: | |
2050 | case TDESC_TYPE_FLAGS: | |
2051 | if (type->kind == TDESC_TYPE_STRUCT) | |
2052 | { | |
2053 | printf_unfiltered | |
2054 | (" type = tdesc_create_struct (feature, \"%s\");\n", | |
2055 | type->name); | |
2056 | if (type->u.u.size != 0) | |
2057 | printf_unfiltered | |
2058 | (" tdesc_set_struct_size (type, %d);\n", | |
2059 | type->u.u.size); | |
2060 | } | |
2061 | else | |
2062 | { | |
2063 | printf_unfiltered | |
2064 | (" type = tdesc_create_flags (feature, \"%s\", %d);\n", | |
2065 | type->name, type->u.u.size); | |
2066 | } | |
2067 | for (int ix3 = 0; | |
2068 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix3, f); | |
2069 | ix3++) | |
2070 | { | |
2071 | const char *type_name; | |
2072 | ||
2073 | gdb_assert (f->type != NULL); | |
2074 | type_name = f->type->name; | |
2075 | ||
2076 | /* To minimize changes to generated files, don't emit type | |
2077 | info for fields that have defaulted types. */ | |
2078 | if (f->start != -1) | |
2079 | { | |
2080 | gdb_assert (f->end != -1); | |
2081 | if (f->type->kind == TDESC_TYPE_BOOL) | |
2082 | { | |
2083 | gdb_assert (f->start == f->end); | |
2084 | printf_unfiltered | |
2085 | (" tdesc_add_flag (type, %d, \"%s\");\n", | |
2086 | f->start, f->name); | |
2087 | } | |
2088 | else if ((type->u.u.size == 4 | |
2089 | && f->type->kind == TDESC_TYPE_UINT32) | |
2090 | || (type->u.u.size == 8 | |
2091 | && f->type->kind == TDESC_TYPE_UINT64)) | |
2092 | { | |
2093 | printf_unfiltered | |
2094 | (" tdesc_add_bitfield (type, \"%s\", %d, %d);\n", | |
2095 | f->name, f->start, f->end); | |
2096 | } | |
2097 | else | |
2098 | { | |
2099 | printf_unfiltered | |
2100 | (" field_type = tdesc_named_type (feature," | |
2101 | " \"%s\");\n", | |
2102 | type_name); | |
2103 | printf_unfiltered | |
2104 | (" tdesc_add_typed_bitfield (type, \"%s\"," | |
2105 | " %d, %d, field_type);\n", | |
2106 | f->name, f->start, f->end); | |
2107 | } | |
2108 | } | |
2109 | else /* Not a bitfield. */ | |
2110 | { | |
2111 | gdb_assert (f->end == -1); | |
2112 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); | |
2113 | printf_unfiltered | |
2114 | (" field_type = tdesc_named_type (feature," | |
2115 | " \"%s\");\n", | |
2116 | type_name); | |
2117 | printf_unfiltered | |
2118 | (" tdesc_add_field (type, \"%s\", field_type);\n", | |
2119 | f->name); | |
2120 | } | |
2121 | } | |
2122 | break; | |
2123 | case TDESC_TYPE_UNION: | |
2124 | printf_unfiltered | |
2125 | (" type = tdesc_create_union (feature, \"%s\");\n", | |
2126 | type->name); | |
2127 | for (int ix3 = 0; | |
2128 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix3, f); | |
2129 | ix3++) | |
2130 | { | |
2131 | printf_unfiltered | |
2132 | (" field_type = tdesc_named_type (feature, \"%s\");\n", | |
2133 | f->type->name); | |
2134 | printf_unfiltered | |
2135 | (" tdesc_add_field (type, \"%s\", field_type);\n", | |
2136 | f->name); | |
2137 | } | |
2138 | break; | |
2139 | case TDESC_TYPE_ENUM: | |
2140 | printf_unfiltered | |
2141 | (" type = tdesc_create_enum (feature, \"%s\", %d);\n", | |
2142 | type->name, type->u.u.size); | |
2143 | for (int ix3 = 0; | |
2144 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix3, f); | |
2145 | ix3++) | |
2146 | printf_unfiltered | |
2147 | (" tdesc_add_enum_value (type, %d, \"%s\");\n", | |
2148 | f->start, f->name); | |
2149 | break; | |
2150 | default: | |
2151 | error (_("C output is not supported type \"%s\"."), type->name); | |
2152 | } | |
2153 | printf_unfiltered ("\n"); | |
2154 | } | |
2155 | ||
2156 | void visit (const tdesc_reg *reg) override | |
2157 | { | |
2158 | printf_unfiltered (" tdesc_create_reg (feature, \"%s\", %ld, %d, ", | |
2159 | reg->name, reg->target_regnum, reg->save_restore); | |
2160 | if (reg->group) | |
2161 | printf_unfiltered ("\"%s\", ", reg->group); | |
2162 | else | |
2163 | printf_unfiltered ("NULL, "); | |
2164 | printf_unfiltered ("%d, \"%s\");\n", reg->bitsize, reg->type); | |
2165 | } | |
2166 | ||
25aa13e5 YQ |
2167 | protected: |
2168 | std::string m_filename_after_features; | |
2169 | ||
6eb1e6a8 YQ |
2170 | private: |
2171 | char *m_function; | |
6eb1e6a8 YQ |
2172 | bool m_printed_field_type = false; |
2173 | bool m_printed_type = false; | |
2174 | }; | |
2175 | ||
25aa13e5 YQ |
2176 | /* Print target description feature in C. */ |
2177 | ||
2178 | class print_c_feature : public print_c_tdesc | |
2179 | { | |
2180 | public: | |
2181 | print_c_feature (std::string &file) | |
2182 | : print_c_tdesc (file) | |
2183 | { | |
2184 | /* Trim ".tmp". */ | |
2185 | auto const pos = m_filename_after_features.find_last_of ('.'); | |
2186 | ||
2187 | m_filename_after_features = m_filename_after_features.substr (0, pos); | |
2188 | } | |
2189 | ||
2190 | void visit_pre (const target_desc *e) override | |
2191 | { | |
2192 | printf_unfiltered (" Original: %s */\n\n", | |
2193 | lbasename (m_filename_after_features.c_str ())); | |
2194 | ||
f49ff000 | 2195 | printf_unfiltered ("#include \"arch/tdesc.h\"\n"); |
25aa13e5 YQ |
2196 | printf_unfiltered ("\n"); |
2197 | } | |
2198 | ||
2199 | void visit_post (const target_desc *e) override | |
2200 | {} | |
2201 | ||
2202 | void visit_pre (const tdesc_feature *e) override | |
2203 | { | |
2204 | std::string name (m_filename_after_features); | |
2205 | ||
2206 | auto pos = name.find_first_of ('.'); | |
2207 | ||
2208 | name = name.substr (0, pos); | |
2209 | std::replace (name.begin (), name.end (), '/', '_'); | |
2210 | std::replace (name.begin (), name.end (), '-', '_'); | |
2211 | ||
2212 | printf_unfiltered ("static int\n"); | |
2213 | printf_unfiltered ("create_feature_%s ", name.c_str ()); | |
2214 | printf_unfiltered ("(struct target_desc *result, long regnum)\n"); | |
2215 | ||
2216 | printf_unfiltered ("{\n"); | |
2217 | printf_unfiltered (" struct tdesc_feature *feature;\n"); | |
0abe8a89 YQ |
2218 | |
2219 | printf_unfiltered | |
2220 | ("\n feature = tdesc_create_feature (result, \"%s\", \"%s\");\n", | |
2221 | e->name, lbasename (m_filename_after_features.c_str ())); | |
25aa13e5 YQ |
2222 | } |
2223 | ||
2224 | void visit_post (const tdesc_feature *e) override | |
2225 | { | |
2226 | printf_unfiltered (" return regnum;\n"); | |
2227 | printf_unfiltered ("}\n"); | |
2228 | } | |
2229 | ||
2230 | void visit (const tdesc_reg *reg) override | |
2231 | { | |
ea03d0d3 YQ |
2232 | /* Most "reg" in XML target descriptions don't have "regnum" |
2233 | attribute, so the register number is allocated sequentially. | |
2234 | In case that reg has "regnum" attribute, register number | |
2235 | should be set by that explicitly. */ | |
2236 | ||
2237 | if (reg->target_regnum < m_next_regnum) | |
2238 | { | |
2239 | /* The integrity check, it can catch some errors on register | |
2240 | number collision, like this, | |
2241 | ||
2242 | <reg name="x0" bitsize="32"/> | |
2243 | <reg name="x1" bitsize="32"/> | |
2244 | <reg name="x2" bitsize="32"/> | |
2245 | <reg name="x3" bitsize="32"/> | |
2246 | <reg name="ps" bitsize="32" regnum="3"/> | |
2247 | ||
2248 | but it also has false negatives. The target description | |
2249 | below is correct, | |
2250 | ||
2251 | <reg name="x1" bitsize="32" regnum="1"/> | |
2252 | <reg name="x3" bitsize="32" regnum="3"/> | |
2253 | <reg name="x2" bitsize="32" regnum="2"/> | |
2254 | <reg name="x4" bitsize="32" regnum="4"/> | |
2255 | ||
2256 | but it is not a good practice, so still error on this, | |
2257 | and also print the message so that it can be saved in the | |
2258 | generated c file. */ | |
2259 | ||
2260 | printf_unfiltered ("ERROR: \"regnum\" attribute %ld ", | |
2261 | reg->target_regnum); | |
2262 | printf_unfiltered ("is not the largest number (%d).\n", | |
2263 | m_next_regnum); | |
2264 | error (_("\"regnum\" attribute %ld is not the largest number (%d)."), | |
2265 | reg->target_regnum, m_next_regnum); | |
2266 | } | |
2267 | ||
2268 | if (reg->target_regnum > m_next_regnum) | |
2269 | { | |
2270 | printf_unfiltered (" regnum = %ld;\n", reg->target_regnum); | |
2271 | m_next_regnum = reg->target_regnum; | |
2272 | } | |
2273 | ||
25aa13e5 YQ |
2274 | printf_unfiltered (" tdesc_create_reg (feature, \"%s\", regnum++, %d, ", |
2275 | reg->name, reg->save_restore); | |
2276 | if (reg->group) | |
2277 | printf_unfiltered ("\"%s\", ", reg->group); | |
2278 | else | |
2279 | printf_unfiltered ("NULL, "); | |
2280 | printf_unfiltered ("%d, \"%s\");\n", reg->bitsize, reg->type); | |
ea03d0d3 YQ |
2281 | |
2282 | m_next_regnum++; | |
25aa13e5 YQ |
2283 | } |
2284 | ||
ea03d0d3 YQ |
2285 | private: |
2286 | /* The register number to use for the next register we see. */ | |
2287 | int m_next_regnum = 0; | |
25aa13e5 YQ |
2288 | }; |
2289 | ||
81adfced DJ |
2290 | static void |
2291 | maint_print_c_tdesc_cmd (char *args, int from_tty) | |
2292 | { | |
2293 | const struct target_desc *tdesc; | |
6eb1e6a8 | 2294 | const char *filename; |
81adfced | 2295 | |
8e2141c6 YQ |
2296 | if (args == NULL) |
2297 | { | |
2298 | /* Use the global target-supplied description, not the current | |
2299 | architecture's. This lets a GDB for one architecture generate C | |
2300 | for another architecture's description, even though the gdbarch | |
2301 | initialization code will reject the new description. */ | |
2302 | tdesc = current_target_desc; | |
2303 | filename = target_description_filename; | |
2304 | } | |
2305 | else | |
2306 | { | |
2307 | /* Use the target description from the XML file. */ | |
2308 | filename = args; | |
2309 | tdesc = file_read_description_xml (filename); | |
2310 | } | |
2311 | ||
81adfced DJ |
2312 | if (tdesc == NULL) |
2313 | error (_("There is no target description to print.")); | |
2314 | ||
8e2141c6 | 2315 | if (filename == NULL) |
81adfced DJ |
2316 | error (_("The current target description did not come from an XML file.")); |
2317 | ||
6eb1e6a8 YQ |
2318 | std::string filename_after_features (filename); |
2319 | auto loc = filename_after_features.rfind ("/features/"); | |
4e2f8df6 | 2320 | |
6eb1e6a8 YQ |
2321 | if (loc != std::string::npos) |
2322 | filename_after_features = filename_after_features.substr (loc + 10); | |
4e2f8df6 | 2323 | |
25aa13e5 YQ |
2324 | /* Print c files for target features instead of target descriptions, |
2325 | because c files got from target features are more flexible than the | |
2326 | counterparts. */ | |
6c73f67f YQ |
2327 | if (startswith (filename_after_features.c_str (), "i386/32bit-") |
2328 | || startswith (filename_after_features.c_str (), "i386/64bit-") | |
2329 | || startswith (filename_after_features.c_str (), "i386/x32-core.xml")) | |
25aa13e5 YQ |
2330 | { |
2331 | print_c_feature v (filename_after_features); | |
81adfced | 2332 | |
25aa13e5 YQ |
2333 | tdesc->accept (v); |
2334 | } | |
2335 | else | |
2336 | { | |
2337 | print_c_tdesc v (filename_after_features); | |
2338 | ||
2339 | tdesc->accept (v); | |
2340 | } | |
81adfced DJ |
2341 | } |
2342 | ||
27d41eac YQ |
2343 | namespace selftests { |
2344 | ||
2345 | static std::vector<std::pair<const char*, const target_desc *>> xml_tdesc; | |
2346 | ||
2347 | #if GDB_SELF_TEST | |
2348 | ||
2349 | /* See target-descritpions.h. */ | |
2350 | ||
2351 | void | |
2352 | record_xml_tdesc (const char *xml_file, const struct target_desc *tdesc) | |
2353 | { | |
2354 | xml_tdesc.emplace_back (xml_file, tdesc); | |
2355 | } | |
2356 | #endif | |
2357 | ||
2358 | } | |
2359 | ||
2360 | /* Check that the target descriptions created dynamically by | |
2361 | architecture-specific code equal the descriptions created from XML files | |
2362 | found in the specified directory DIR. */ | |
2363 | ||
2364 | static void | |
2365 | maintenance_check_xml_descriptions (char *dir, int from_tty) | |
2366 | { | |
2367 | if (dir == NULL) | |
2368 | error (_("Missing dir name")); | |
2369 | ||
2370 | gdb::unique_xmalloc_ptr<char> dir1 (tilde_expand (dir)); | |
2371 | std::string feature_dir (dir1.get ()); | |
2372 | unsigned int failed = 0; | |
2373 | ||
2374 | for (auto const &e : selftests::xml_tdesc) | |
2375 | { | |
2376 | std::string tdesc_xml = (feature_dir + SLASH_STRING + e.first); | |
2377 | const target_desc *tdesc | |
2378 | = file_read_description_xml (tdesc_xml.data ()); | |
2379 | ||
2380 | if (tdesc == NULL || *tdesc != *e.second) | |
2381 | failed++; | |
2382 | } | |
2383 | printf_filtered (_("Tested %lu XML files, %d failed\n"), | |
2384 | (long) selftests::xml_tdesc.size (), failed); | |
2385 | } | |
2386 | ||
23181151 DJ |
2387 | void |
2388 | _initialize_target_descriptions (void) | |
2389 | { | |
123dc839 DJ |
2390 | tdesc_data = gdbarch_data_register_pre_init (tdesc_data_init); |
2391 | ||
23181151 DJ |
2392 | add_prefix_cmd ("tdesc", class_maintenance, set_tdesc_cmd, _("\ |
2393 | Set target description specific variables."), | |
2394 | &tdesc_set_cmdlist, "set tdesc ", | |
2395 | 0 /* allow-unknown */, &setlist); | |
2396 | add_prefix_cmd ("tdesc", class_maintenance, show_tdesc_cmd, _("\ | |
2397 | Show target description specific variables."), | |
2398 | &tdesc_show_cmdlist, "show tdesc ", | |
2399 | 0 /* allow-unknown */, &showlist); | |
2400 | add_prefix_cmd ("tdesc", class_maintenance, unset_tdesc_cmd, _("\ | |
2401 | Unset target description specific variables."), | |
2402 | &tdesc_unset_cmdlist, "unset tdesc ", | |
2403 | 0 /* allow-unknown */, &unsetlist); | |
2404 | ||
2405 | add_setshow_filename_cmd ("filename", class_obscure, | |
6ecd4729 | 2406 | &tdesc_filename_cmd_string, |
23181151 DJ |
2407 | _("\ |
2408 | Set the file to read for an XML target description"), _("\ | |
2409 | Show the file to read for an XML target description"), _("\ | |
2410 | When set, GDB will read the target description from a local\n\ | |
2411 | file instead of querying the remote target."), | |
2412 | set_tdesc_filename_cmd, | |
2413 | show_tdesc_filename_cmd, | |
2414 | &tdesc_set_cmdlist, &tdesc_show_cmdlist); | |
2415 | ||
2416 | add_cmd ("filename", class_obscure, unset_tdesc_filename_cmd, _("\ | |
2417 | Unset the file to read for an XML target description. When unset,\n\ | |
2418 | GDB will read the description from the target."), | |
2419 | &tdesc_unset_cmdlist); | |
81adfced DJ |
2420 | |
2421 | add_cmd ("c-tdesc", class_maintenance, maint_print_c_tdesc_cmd, _("\ | |
2422 | Print the current target description as a C source file."), | |
2423 | &maintenanceprintlist); | |
27d41eac YQ |
2424 | |
2425 | cmd_list_element *cmd; | |
2426 | ||
2427 | cmd = add_cmd ("xml-descriptions", class_maintenance, | |
2428 | maintenance_check_xml_descriptions, _("\ | |
2429 | Check the target descriptions created in GDB equal the descriptions\n\ | |
2430 | created from XML files in the directory.\n\ | |
2431 | The parameter is the directory name."), | |
2432 | &maintenancechecklist); | |
2433 | set_cmd_completer (cmd, filename_completer); | |
23181151 | 2434 | } |