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