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424163ea DJ |
1 | /* Target description support for GDB. |
2 | ||
4c38e0a4 | 3 | Copyright (C) 2006, 2007, 2008, 2009, 2010 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 DJ |
33 | |
34 | #include "gdb_assert.h" | |
123dc839 DJ |
35 | #include "gdb_obstack.h" |
36 | #include "hashtab.h" | |
424163ea DJ |
37 | |
38 | /* Types. */ | |
39 | ||
29709017 DJ |
40 | typedef struct property |
41 | { | |
23181151 DJ |
42 | char *key; |
43 | char *value; | |
29709017 DJ |
44 | } property_s; |
45 | DEF_VEC_O(property_s); | |
46 | ||
123dc839 DJ |
47 | /* An individual register from a target description. */ |
48 | ||
49 | typedef struct tdesc_reg | |
50 | { | |
51 | /* The name of this register. In standard features, it may be | |
52 | recognized by the architecture support code, or it may be purely | |
53 | for the user. */ | |
54 | char *name; | |
55 | ||
56 | /* The register number used by this target to refer to this | |
57 | register. This is used for remote p/P packets and to determine | |
58 | the ordering of registers in the remote g/G packets. */ | |
59 | long target_regnum; | |
60 | ||
61 | /* If this flag is set, GDB should save and restore this register | |
62 | around calls to an inferior function. */ | |
63 | int save_restore; | |
64 | ||
65 | /* The name of the register group containing this register, or NULL | |
66 | if the group should be automatically determined from the | |
67 | register's type. If this is "general", "float", or "vector", the | |
68 | corresponding "info" command should display this register's | |
69 | value. It can be an arbitrary string, but should be limited to | |
70 | alphanumeric characters and internal hyphens. Currently other | |
71 | strings are ignored (treated as NULL). */ | |
72 | char *group; | |
73 | ||
74 | /* The size of the register, in bits. */ | |
75 | int bitsize; | |
76 | ||
77 | /* The type of the register. This string corresponds to either | |
78 | a named type from the target description or a predefined | |
79 | type from GDB. */ | |
80 | char *type; | |
81 | ||
82 | /* The target-described type corresponding to TYPE, if found. */ | |
ad068eab | 83 | struct tdesc_type *tdesc_type; |
123dc839 DJ |
84 | } *tdesc_reg_p; |
85 | DEF_VEC_P(tdesc_reg_p); | |
86 | ||
87 | /* A named type from a target description. */ | |
ad068eab UW |
88 | |
89 | typedef struct tdesc_type_field | |
90 | { | |
91 | char *name; | |
92 | struct tdesc_type *type; | |
f5dff777 | 93 | int start, end; |
ad068eab UW |
94 | } tdesc_type_field; |
95 | DEF_VEC_O(tdesc_type_field); | |
96 | ||
f5dff777 DJ |
97 | typedef struct tdesc_type_flag |
98 | { | |
99 | char *name; | |
100 | int start; | |
101 | } tdesc_type_flag; | |
102 | DEF_VEC_O(tdesc_type_flag); | |
103 | ||
ad068eab UW |
104 | typedef struct tdesc_type |
105 | { | |
106 | /* The name of this type. */ | |
107 | char *name; | |
108 | ||
109 | /* Identify the kind of this type. */ | |
110 | enum | |
111 | { | |
112 | /* Predefined types. */ | |
113 | TDESC_TYPE_INT8, | |
114 | TDESC_TYPE_INT16, | |
115 | TDESC_TYPE_INT32, | |
116 | TDESC_TYPE_INT64, | |
117 | TDESC_TYPE_INT128, | |
118 | TDESC_TYPE_UINT8, | |
119 | TDESC_TYPE_UINT16, | |
120 | TDESC_TYPE_UINT32, | |
121 | TDESC_TYPE_UINT64, | |
122 | TDESC_TYPE_UINT128, | |
123 | TDESC_TYPE_CODE_PTR, | |
124 | TDESC_TYPE_DATA_PTR, | |
125 | TDESC_TYPE_IEEE_SINGLE, | |
126 | TDESC_TYPE_IEEE_DOUBLE, | |
127 | TDESC_TYPE_ARM_FPA_EXT, | |
9fd3625f L |
128 | TDESC_TYPE_I387_EXT, |
129 | TDESC_TYPE_I386_EFLAGS, | |
130 | TDESC_TYPE_I386_MXCSR, | |
ad068eab UW |
131 | |
132 | /* Types defined by a target feature. */ | |
133 | TDESC_TYPE_VECTOR, | |
f5dff777 DJ |
134 | TDESC_TYPE_STRUCT, |
135 | TDESC_TYPE_UNION, | |
136 | TDESC_TYPE_FLAGS | |
ad068eab UW |
137 | } kind; |
138 | ||
139 | /* Kind-specific data. */ | |
140 | union | |
141 | { | |
142 | /* Vector type. */ | |
143 | struct | |
144 | { | |
145 | struct tdesc_type *type; | |
146 | int count; | |
147 | } v; | |
148 | ||
f5dff777 | 149 | /* Struct or union type. */ |
ad068eab UW |
150 | struct |
151 | { | |
152 | VEC(tdesc_type_field) *fields; | |
f5dff777 | 153 | LONGEST size; |
ad068eab | 154 | } u; |
f5dff777 DJ |
155 | |
156 | /* Flags type. */ | |
157 | struct | |
158 | { | |
159 | VEC(tdesc_type_flag) *flags; | |
160 | LONGEST size; | |
161 | } f; | |
ad068eab UW |
162 | } u; |
163 | } *tdesc_type_p; | |
164 | DEF_VEC_P(tdesc_type_p); | |
123dc839 DJ |
165 | |
166 | /* A feature from a target description. Each feature is a collection | |
167 | of other elements, e.g. registers and types. */ | |
168 | ||
169 | typedef struct tdesc_feature | |
170 | { | |
171 | /* The name of this feature. It may be recognized by the architecture | |
172 | support code. */ | |
173 | char *name; | |
174 | ||
175 | /* The registers associated with this feature. */ | |
176 | VEC(tdesc_reg_p) *registers; | |
177 | ||
178 | /* The types associated with this feature. */ | |
ad068eab | 179 | VEC(tdesc_type_p) *types; |
123dc839 DJ |
180 | } *tdesc_feature_p; |
181 | DEF_VEC_P(tdesc_feature_p); | |
182 | ||
e35359c5 UW |
183 | /* A compatible architecture from a target description. */ |
184 | typedef const struct bfd_arch_info *arch_p; | |
185 | DEF_VEC_P(arch_p); | |
186 | ||
123dc839 DJ |
187 | /* A target description. */ |
188 | ||
424163ea DJ |
189 | struct target_desc |
190 | { | |
23181151 DJ |
191 | /* The architecture reported by the target, if any. */ |
192 | const struct bfd_arch_info *arch; | |
193 | ||
08d16641 PA |
194 | /* The osabi reported by the target, if any; GDB_OSABI_UNKNOWN |
195 | otherwise. */ | |
196 | enum gdb_osabi osabi; | |
197 | ||
e35359c5 UW |
198 | /* The list of compatible architectures reported by the target. */ |
199 | VEC(arch_p) *compatible; | |
200 | ||
29709017 DJ |
201 | /* Any architecture-specific properties specified by the target. */ |
202 | VEC(property_s) *properties; | |
123dc839 DJ |
203 | |
204 | /* The features associated with this target. */ | |
205 | VEC(tdesc_feature_p) *features; | |
206 | }; | |
207 | ||
208 | /* Per-architecture data associated with a target description. The | |
209 | target description may be shared by multiple architectures, but | |
210 | this data is private to one gdbarch. */ | |
211 | ||
ad068eab UW |
212 | typedef struct tdesc_arch_reg |
213 | { | |
214 | struct tdesc_reg *reg; | |
215 | struct type *type; | |
216 | } tdesc_arch_reg; | |
217 | DEF_VEC_O(tdesc_arch_reg); | |
218 | ||
123dc839 DJ |
219 | struct tdesc_arch_data |
220 | { | |
ad068eab | 221 | /* A list of register/type pairs, indexed by GDB's internal register number. |
123dc839 DJ |
222 | During initialization of the gdbarch this list is used to store |
223 | registers which the architecture assigns a fixed register number. | |
224 | Registers which are NULL in this array, or off the end, are | |
225 | treated as zero-sized and nameless (i.e. placeholders in the | |
226 | numbering). */ | |
ad068eab | 227 | VEC(tdesc_arch_reg) *arch_regs; |
123dc839 DJ |
228 | |
229 | /* Functions which report the register name, type, and reggroups for | |
230 | pseudo-registers. */ | |
231 | gdbarch_register_name_ftype *pseudo_register_name; | |
232 | gdbarch_register_type_ftype *pseudo_register_type; | |
233 | gdbarch_register_reggroup_p_ftype *pseudo_register_reggroup_p; | |
424163ea DJ |
234 | }; |
235 | ||
236 | /* Global state. These variables are associated with the current | |
237 | target; if GDB adds support for multiple simultaneous targets, then | |
238 | these variables should become target-specific data. */ | |
239 | ||
240 | /* A flag indicating that a description has already been fetched from | |
241 | the current target, so it should not be queried again. */ | |
242 | ||
243 | static int target_desc_fetched; | |
244 | ||
245 | /* The description fetched from the current target, or NULL if the | |
246 | current target did not supply any description. Only valid when | |
247 | target_desc_fetched is set. Only the description initialization | |
248 | code should access this; normally, the description should be | |
249 | accessed through the gdbarch object. */ | |
250 | ||
251 | static const struct target_desc *current_target_desc; | |
252 | ||
23181151 DJ |
253 | /* Other global variables. */ |
254 | ||
255 | /* The filename to read a target description from. */ | |
256 | ||
257 | static char *target_description_filename; | |
258 | ||
123dc839 DJ |
259 | /* A handle for architecture-specific data associated with the |
260 | target description (see struct tdesc_arch_data). */ | |
261 | ||
262 | static struct gdbarch_data *tdesc_data; | |
263 | ||
424163ea DJ |
264 | /* Fetch the current target's description, and switch the current |
265 | architecture to one which incorporates that description. */ | |
266 | ||
267 | void | |
268 | target_find_description (void) | |
269 | { | |
270 | /* If we've already fetched a description from the target, don't do | |
271 | it again. This allows a target to fetch the description early, | |
272 | during its to_open or to_create_inferior, if it needs extra | |
273 | information about the target to initialize. */ | |
274 | if (target_desc_fetched) | |
275 | return; | |
276 | ||
277 | /* The current architecture should not have any target description | |
278 | specified. It should have been cleared, e.g. when we | |
279 | disconnected from the previous target. */ | |
1cf3db46 | 280 | gdb_assert (gdbarch_target_desc (target_gdbarch) == NULL); |
424163ea | 281 | |
23181151 DJ |
282 | /* First try to fetch an XML description from the user-specified |
283 | file. */ | |
284 | current_target_desc = NULL; | |
285 | if (target_description_filename != NULL | |
286 | && *target_description_filename != '\0') | |
287 | current_target_desc | |
288 | = file_read_description_xml (target_description_filename); | |
289 | ||
290 | /* Next try to read the description from the current target using | |
291 | target objects. */ | |
292 | if (current_target_desc == NULL) | |
293 | current_target_desc = target_read_description_xml (¤t_target); | |
294 | ||
295 | /* If that failed try a target-specific hook. */ | |
296 | if (current_target_desc == NULL) | |
297 | current_target_desc = target_read_description (¤t_target); | |
424163ea DJ |
298 | |
299 | /* If a non-NULL description was returned, then update the current | |
300 | architecture. */ | |
301 | if (current_target_desc) | |
302 | { | |
303 | struct gdbarch_info info; | |
304 | ||
305 | gdbarch_info_init (&info); | |
306 | info.target_desc = current_target_desc; | |
307 | if (!gdbarch_update_p (info)) | |
123dc839 DJ |
308 | warning (_("Architecture rejected target-supplied description")); |
309 | else | |
310 | { | |
311 | struct tdesc_arch_data *data; | |
312 | ||
1cf3db46 | 313 | data = gdbarch_data (target_gdbarch, tdesc_data); |
123dc839 | 314 | if (tdesc_has_registers (current_target_desc) |
ad068eab | 315 | && data->arch_regs == NULL) |
123dc839 DJ |
316 | warning (_("Target-supplied registers are not supported " |
317 | "by the current architecture")); | |
318 | } | |
424163ea DJ |
319 | } |
320 | ||
321 | /* Now that we know this description is usable, record that we | |
322 | fetched it. */ | |
323 | target_desc_fetched = 1; | |
324 | } | |
325 | ||
326 | /* Discard any description fetched from the current target, and switch | |
327 | the current architecture to one with no target description. */ | |
328 | ||
329 | void | |
330 | target_clear_description (void) | |
331 | { | |
332 | struct gdbarch_info info; | |
333 | ||
334 | if (!target_desc_fetched) | |
335 | return; | |
336 | ||
337 | target_desc_fetched = 0; | |
338 | current_target_desc = NULL; | |
339 | ||
340 | gdbarch_info_init (&info); | |
341 | if (!gdbarch_update_p (info)) | |
342 | internal_error (__FILE__, __LINE__, | |
343 | _("Could not remove target-supplied description")); | |
344 | } | |
345 | ||
346 | /* Return the global current target description. This should only be | |
347 | used by gdbarch initialization code; most access should be through | |
348 | an existing gdbarch. */ | |
349 | ||
350 | const struct target_desc * | |
351 | target_current_description (void) | |
352 | { | |
353 | if (target_desc_fetched) | |
354 | return current_target_desc; | |
355 | ||
356 | return NULL; | |
357 | } | |
e35359c5 UW |
358 | |
359 | /* Return non-zero if this target description is compatible | |
360 | with the given BFD architecture. */ | |
361 | ||
362 | int | |
363 | tdesc_compatible_p (const struct target_desc *target_desc, | |
364 | const struct bfd_arch_info *arch) | |
365 | { | |
366 | const struct bfd_arch_info *compat; | |
367 | int ix; | |
368 | ||
369 | for (ix = 0; VEC_iterate (arch_p, target_desc->compatible, ix, compat); | |
370 | ix++) | |
371 | { | |
372 | if (compat == arch | |
373 | || arch->compatible (arch, compat) | |
374 | || compat->compatible (compat, arch)) | |
375 | return 1; | |
376 | } | |
377 | ||
378 | return 0; | |
379 | } | |
23181151 DJ |
380 | \f |
381 | ||
123dc839 | 382 | /* Direct accessors for target descriptions. */ |
424163ea | 383 | |
29709017 DJ |
384 | /* Return the string value of a property named KEY, or NULL if the |
385 | property was not specified. */ | |
386 | ||
387 | const char * | |
388 | tdesc_property (const struct target_desc *target_desc, const char *key) | |
389 | { | |
390 | struct property *prop; | |
391 | int ix; | |
392 | ||
393 | for (ix = 0; VEC_iterate (property_s, target_desc->properties, ix, prop); | |
394 | ix++) | |
395 | if (strcmp (prop->key, key) == 0) | |
396 | return prop->value; | |
397 | ||
398 | return NULL; | |
399 | } | |
400 | ||
23181151 DJ |
401 | /* Return the BFD architecture associated with this target |
402 | description, or NULL if no architecture was specified. */ | |
403 | ||
404 | const struct bfd_arch_info * | |
405 | tdesc_architecture (const struct target_desc *target_desc) | |
406 | { | |
407 | return target_desc->arch; | |
408 | } | |
08d16641 PA |
409 | |
410 | /* Return the OSABI associated with this target description, or | |
411 | GDB_OSABI_UNKNOWN if no osabi was specified. */ | |
412 | ||
413 | enum gdb_osabi | |
414 | tdesc_osabi (const struct target_desc *target_desc) | |
415 | { | |
416 | return target_desc->osabi; | |
417 | } | |
418 | ||
23181151 DJ |
419 | \f |
420 | ||
123dc839 DJ |
421 | /* Return 1 if this target description includes any registers. */ |
422 | ||
423 | int | |
424 | tdesc_has_registers (const struct target_desc *target_desc) | |
425 | { | |
426 | int ix; | |
427 | struct tdesc_feature *feature; | |
428 | ||
429 | if (target_desc == NULL) | |
430 | return 0; | |
431 | ||
432 | for (ix = 0; | |
433 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
434 | ix++) | |
435 | if (! VEC_empty (tdesc_reg_p, feature->registers)) | |
436 | return 1; | |
437 | ||
438 | return 0; | |
439 | } | |
440 | ||
441 | /* Return the feature with the given name, if present, or NULL if | |
442 | the named feature is not found. */ | |
443 | ||
444 | const struct tdesc_feature * | |
445 | tdesc_find_feature (const struct target_desc *target_desc, | |
446 | const char *name) | |
447 | { | |
448 | int ix; | |
449 | struct tdesc_feature *feature; | |
450 | ||
451 | for (ix = 0; | |
452 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
453 | ix++) | |
454 | if (strcmp (feature->name, name) == 0) | |
455 | return feature; | |
456 | ||
457 | return NULL; | |
458 | } | |
459 | ||
460 | /* Return the name of FEATURE. */ | |
461 | ||
462 | const char * | |
463 | tdesc_feature_name (const struct tdesc_feature *feature) | |
464 | { | |
465 | return feature->name; | |
466 | } | |
467 | ||
ad068eab UW |
468 | /* Predefined types. */ |
469 | static struct tdesc_type tdesc_predefined_types[] = | |
81adfced | 470 | { |
ad068eab UW |
471 | { "int8", TDESC_TYPE_INT8 }, |
472 | { "int16", TDESC_TYPE_INT16 }, | |
473 | { "int32", TDESC_TYPE_INT32 }, | |
474 | { "int64", TDESC_TYPE_INT64 }, | |
475 | { "int128", TDESC_TYPE_INT128 }, | |
476 | { "uint8", TDESC_TYPE_UINT8 }, | |
477 | { "uint16", TDESC_TYPE_UINT16 }, | |
478 | { "uint32", TDESC_TYPE_UINT32 }, | |
479 | { "uint64", TDESC_TYPE_UINT64 }, | |
480 | { "uint128", TDESC_TYPE_UINT128 }, | |
481 | { "code_ptr", TDESC_TYPE_CODE_PTR }, | |
482 | { "data_ptr", TDESC_TYPE_DATA_PTR }, | |
483 | { "ieee_single", TDESC_TYPE_IEEE_SINGLE }, | |
484 | { "ieee_double", TDESC_TYPE_IEEE_DOUBLE }, | |
9fd3625f L |
485 | { "arm_fpa_ext", TDESC_TYPE_ARM_FPA_EXT }, |
486 | { "i387_ext", TDESC_TYPE_I387_EXT }, | |
487 | { "i386_eflags", TDESC_TYPE_I386_EFLAGS }, | |
488 | { "i386_mxcsr", TDESC_TYPE_I386_MXCSR } | |
ad068eab | 489 | }; |
81adfced | 490 | |
123dc839 DJ |
491 | /* Return the type associated with ID in the context of FEATURE, or |
492 | NULL if none. */ | |
493 | ||
ad068eab | 494 | struct tdesc_type * |
123dc839 DJ |
495 | tdesc_named_type (const struct tdesc_feature *feature, const char *id) |
496 | { | |
497 | int ix; | |
ad068eab | 498 | struct tdesc_type *type; |
123dc839 DJ |
499 | |
500 | /* First try target-defined types. */ | |
ad068eab UW |
501 | for (ix = 0; VEC_iterate (tdesc_type_p, feature->types, ix, type); ix++) |
502 | if (strcmp (type->name, id) == 0) | |
503 | return type; | |
123dc839 | 504 | |
81adfced DJ |
505 | /* Next try the predefined types. */ |
506 | for (ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++) | |
507 | if (strcmp (tdesc_predefined_types[ix].name, id) == 0) | |
ad068eab | 508 | return &tdesc_predefined_types[ix]; |
123dc839 DJ |
509 | |
510 | return NULL; | |
511 | } | |
ad068eab | 512 | |
9fd3625f L |
513 | /* Lookup type associated with ID. */ |
514 | ||
515 | struct type * | |
516 | tdesc_find_type (struct gdbarch *gdbarch, const char *id) | |
517 | { | |
518 | struct tdesc_arch_reg *reg; | |
519 | struct tdesc_arch_data *data; | |
520 | int i, num_regs; | |
521 | ||
522 | data = gdbarch_data (gdbarch, tdesc_data); | |
523 | num_regs = VEC_length (tdesc_arch_reg, data->arch_regs); | |
524 | for (i = 0; i < num_regs; i++) | |
525 | { | |
526 | reg = VEC_index (tdesc_arch_reg, data->arch_regs, i); | |
527 | if (reg->reg | |
528 | && reg->reg->tdesc_type | |
529 | && reg->type | |
530 | && strcmp (id, reg->reg->tdesc_type->name) == 0) | |
531 | return reg->type; | |
532 | } | |
533 | ||
534 | return NULL; | |
535 | } | |
536 | ||
ad068eab UW |
537 | /* Construct, if necessary, and return the GDB type implementing target |
538 | type TDESC_TYPE for architecture GDBARCH. */ | |
539 | ||
540 | static struct type * | |
541 | tdesc_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *tdesc_type) | |
542 | { | |
9fd3625f L |
543 | struct type *type; |
544 | ||
ad068eab UW |
545 | switch (tdesc_type->kind) |
546 | { | |
547 | /* Predefined types. */ | |
548 | case TDESC_TYPE_INT8: | |
df4df182 | 549 | return builtin_type (gdbarch)->builtin_int8; |
ad068eab UW |
550 | |
551 | case TDESC_TYPE_INT16: | |
df4df182 | 552 | return builtin_type (gdbarch)->builtin_int16; |
ad068eab UW |
553 | |
554 | case TDESC_TYPE_INT32: | |
df4df182 | 555 | return builtin_type (gdbarch)->builtin_int32; |
ad068eab UW |
556 | |
557 | case TDESC_TYPE_INT64: | |
df4df182 | 558 | return builtin_type (gdbarch)->builtin_int64; |
ad068eab UW |
559 | |
560 | case TDESC_TYPE_INT128: | |
df4df182 | 561 | return builtin_type (gdbarch)->builtin_int128; |
ad068eab UW |
562 | |
563 | case TDESC_TYPE_UINT8: | |
df4df182 | 564 | return builtin_type (gdbarch)->builtin_uint8; |
ad068eab UW |
565 | |
566 | case TDESC_TYPE_UINT16: | |
df4df182 | 567 | return builtin_type (gdbarch)->builtin_uint16; |
ad068eab UW |
568 | |
569 | case TDESC_TYPE_UINT32: | |
df4df182 | 570 | return builtin_type (gdbarch)->builtin_uint32; |
ad068eab UW |
571 | |
572 | case TDESC_TYPE_UINT64: | |
df4df182 | 573 | return builtin_type (gdbarch)->builtin_uint64; |
ad068eab UW |
574 | |
575 | case TDESC_TYPE_UINT128: | |
df4df182 | 576 | return builtin_type (gdbarch)->builtin_uint128; |
ad068eab UW |
577 | |
578 | case TDESC_TYPE_CODE_PTR: | |
579 | return builtin_type (gdbarch)->builtin_func_ptr; | |
580 | ||
581 | case TDESC_TYPE_DATA_PTR: | |
582 | return builtin_type (gdbarch)->builtin_data_ptr; | |
583 | ||
9fd3625f L |
584 | default: |
585 | break; | |
586 | } | |
587 | ||
588 | type = tdesc_find_type (gdbarch, tdesc_type->name); | |
589 | if (type) | |
590 | return type; | |
591 | ||
592 | switch (tdesc_type->kind) | |
593 | { | |
ad068eab | 594 | case TDESC_TYPE_IEEE_SINGLE: |
e9bb382b | 595 | return arch_float_type (gdbarch, -1, "builtin_type_ieee_single", |
27067745 | 596 | floatformats_ieee_single); |
ad068eab UW |
597 | |
598 | case TDESC_TYPE_IEEE_DOUBLE: | |
e9bb382b | 599 | return arch_float_type (gdbarch, -1, "builtin_type_ieee_double", |
27067745 | 600 | floatformats_ieee_double); |
ad068eab UW |
601 | |
602 | case TDESC_TYPE_ARM_FPA_EXT: | |
e9bb382b | 603 | return arch_float_type (gdbarch, -1, "builtin_type_arm_ext", |
27067745 | 604 | floatformats_arm_ext); |
ad068eab | 605 | |
9fd3625f L |
606 | case TDESC_TYPE_I387_EXT: |
607 | return arch_float_type (gdbarch, -1, "builtin_type_i387_ext", | |
608 | floatformats_i387_ext); | |
609 | ||
610 | case TDESC_TYPE_I386_EFLAGS: | |
611 | { | |
612 | struct type *type; | |
613 | ||
614 | type = arch_flags_type (gdbarch, "builtin_type_i386_eflags", 4); | |
615 | append_flags_type_flag (type, 0, "CF"); | |
616 | append_flags_type_flag (type, 1, NULL); | |
617 | append_flags_type_flag (type, 2, "PF"); | |
618 | append_flags_type_flag (type, 4, "AF"); | |
619 | append_flags_type_flag (type, 6, "ZF"); | |
620 | append_flags_type_flag (type, 7, "SF"); | |
621 | append_flags_type_flag (type, 8, "TF"); | |
622 | append_flags_type_flag (type, 9, "IF"); | |
623 | append_flags_type_flag (type, 10, "DF"); | |
624 | append_flags_type_flag (type, 11, "OF"); | |
625 | append_flags_type_flag (type, 14, "NT"); | |
626 | append_flags_type_flag (type, 16, "RF"); | |
627 | append_flags_type_flag (type, 17, "VM"); | |
628 | append_flags_type_flag (type, 18, "AC"); | |
629 | append_flags_type_flag (type, 19, "VIF"); | |
630 | append_flags_type_flag (type, 20, "VIP"); | |
631 | append_flags_type_flag (type, 21, "ID"); | |
632 | ||
633 | return type; | |
634 | } | |
635 | break; | |
636 | ||
637 | case TDESC_TYPE_I386_MXCSR: | |
638 | { | |
639 | struct type *type; | |
640 | ||
641 | type = arch_flags_type (gdbarch, "builtin_type_i386_mxcsr", 4); | |
642 | append_flags_type_flag (type, 0, "IE"); | |
643 | append_flags_type_flag (type, 1, "DE"); | |
644 | append_flags_type_flag (type, 2, "ZE"); | |
645 | append_flags_type_flag (type, 3, "OE"); | |
646 | append_flags_type_flag (type, 4, "UE"); | |
647 | append_flags_type_flag (type, 5, "PE"); | |
648 | append_flags_type_flag (type, 6, "DAZ"); | |
649 | append_flags_type_flag (type, 7, "IM"); | |
650 | append_flags_type_flag (type, 8, "DM"); | |
651 | append_flags_type_flag (type, 9, "ZM"); | |
652 | append_flags_type_flag (type, 10, "OM"); | |
653 | append_flags_type_flag (type, 11, "UM"); | |
654 | append_flags_type_flag (type, 12, "PM"); | |
655 | append_flags_type_flag (type, 15, "FZ"); | |
656 | ||
657 | return type; | |
658 | } | |
659 | break; | |
660 | ||
ad068eab UW |
661 | /* Types defined by a target feature. */ |
662 | case TDESC_TYPE_VECTOR: | |
663 | { | |
664 | struct type *type, *field_type; | |
665 | ||
666 | field_type = tdesc_gdb_type (gdbarch, tdesc_type->u.v.type); | |
667 | type = init_vector_type (field_type, tdesc_type->u.v.count); | |
668 | TYPE_NAME (type) = xstrdup (tdesc_type->name); | |
669 | ||
670 | return type; | |
671 | } | |
672 | ||
f5dff777 DJ |
673 | case TDESC_TYPE_STRUCT: |
674 | { | |
675 | struct type *type, *field_type; | |
676 | struct tdesc_type_field *f; | |
677 | int ix; | |
678 | ||
679 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
680 | TYPE_NAME (type) = xstrdup (tdesc_type->name); | |
681 | TYPE_TAG_NAME (type) = TYPE_NAME (type); | |
682 | ||
683 | for (ix = 0; | |
684 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
685 | ix++) | |
686 | { | |
687 | if (f->type == NULL) | |
688 | { | |
689 | /* Bitfield. */ | |
690 | struct field *fld; | |
691 | struct type *field_type; | |
692 | int bitsize, total_size; | |
693 | ||
694 | /* This invariant should be preserved while creating | |
695 | types. */ | |
696 | gdb_assert (tdesc_type->u.u.size != 0); | |
697 | if (tdesc_type->u.u.size > 4) | |
698 | field_type = builtin_type (gdbarch)->builtin_uint64; | |
699 | else | |
700 | field_type = builtin_type (gdbarch)->builtin_uint32; | |
701 | ||
702 | fld = append_composite_type_field_raw (type, xstrdup (f->name), | |
703 | field_type); | |
704 | ||
705 | /* For little-endian, BITPOS counts from the LSB of | |
706 | the structure and marks the LSB of the field. For | |
707 | big-endian, BITPOS counts from the MSB of the | |
708 | structure and marks the MSB of the field. Either | |
709 | way, it is the number of bits to the "left" of the | |
710 | field. To calculate this in big-endian, we need | |
711 | the total size of the structure. */ | |
712 | bitsize = f->end - f->start + 1; | |
713 | total_size = tdesc_type->u.u.size * TARGET_CHAR_BIT; | |
714 | if (gdbarch_bits_big_endian (gdbarch)) | |
715 | FIELD_BITPOS (fld[0]) = total_size - f->start - bitsize; | |
716 | else | |
717 | FIELD_BITPOS (fld[0]) = f->start; | |
718 | FIELD_BITSIZE (fld[0]) = bitsize; | |
719 | } | |
720 | else | |
721 | { | |
722 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
723 | append_composite_type_field (type, xstrdup (f->name), | |
724 | field_type); | |
725 | } | |
726 | } | |
727 | ||
728 | if (tdesc_type->u.u.size != 0) | |
729 | TYPE_LENGTH (type) = tdesc_type->u.u.size; | |
730 | return type; | |
731 | } | |
732 | ||
ad068eab UW |
733 | case TDESC_TYPE_UNION: |
734 | { | |
735 | struct type *type, *field_type; | |
736 | struct tdesc_type_field *f; | |
737 | int ix; | |
738 | ||
e9bb382b | 739 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
ad068eab UW |
740 | TYPE_NAME (type) = xstrdup (tdesc_type->name); |
741 | ||
742 | for (ix = 0; | |
743 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
744 | ix++) | |
745 | { | |
746 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
747 | append_composite_type_field (type, xstrdup (f->name), field_type); | |
748 | ||
f5dff777 | 749 | /* If any of the children of a union are vectors, flag the |
ad068eab UW |
750 | union as a vector also. This allows e.g. a union of two |
751 | vector types to show up automatically in "info vector". */ | |
752 | if (TYPE_VECTOR (field_type)) | |
753 | TYPE_VECTOR (type) = 1; | |
754 | } | |
f5dff777 DJ |
755 | return type; |
756 | } | |
757 | ||
758 | case TDESC_TYPE_FLAGS: | |
759 | { | |
760 | struct type *type, *field_type; | |
761 | struct tdesc_type_flag *f; | |
762 | int ix; | |
763 | ||
764 | type = arch_flags_type (gdbarch, xstrdup (tdesc_type->name), | |
765 | tdesc_type->u.f.size); | |
766 | for (ix = 0; | |
767 | VEC_iterate (tdesc_type_flag, tdesc_type->u.f.flags, ix, f); | |
768 | ix++) | |
769 | /* Note that contrary to the function name, this call will | |
770 | just set the properties of an already-allocated | |
771 | field. */ | |
772 | append_flags_type_flag (type, f->start, f->name); | |
ad068eab UW |
773 | |
774 | return type; | |
775 | } | |
776 | } | |
777 | ||
778 | internal_error (__FILE__, __LINE__, | |
779 | "Type \"%s\" has an unknown kind %d", | |
780 | tdesc_type->name, tdesc_type->kind); | |
781 | } | |
123dc839 DJ |
782 | \f |
783 | ||
784 | /* Support for registers from target descriptions. */ | |
785 | ||
786 | /* Construct the per-gdbarch data. */ | |
787 | ||
788 | static void * | |
789 | tdesc_data_init (struct obstack *obstack) | |
790 | { | |
791 | struct tdesc_arch_data *data; | |
792 | ||
793 | data = OBSTACK_ZALLOC (obstack, struct tdesc_arch_data); | |
794 | return data; | |
795 | } | |
796 | ||
797 | /* Similar, but for the temporary copy used during architecture | |
798 | initialization. */ | |
799 | ||
800 | struct tdesc_arch_data * | |
801 | tdesc_data_alloc (void) | |
802 | { | |
803 | return XZALLOC (struct tdesc_arch_data); | |
804 | } | |
805 | ||
806 | /* Free something allocated by tdesc_data_alloc, if it is not going | |
807 | to be used (for instance if it was unsuitable for the | |
808 | architecture). */ | |
809 | ||
810 | void | |
811 | tdesc_data_cleanup (void *data_untyped) | |
812 | { | |
813 | struct tdesc_arch_data *data = data_untyped; | |
814 | ||
ad068eab | 815 | VEC_free (tdesc_arch_reg, data->arch_regs); |
123dc839 DJ |
816 | xfree (data); |
817 | } | |
818 | ||
819 | /* Search FEATURE for a register named NAME. */ | |
820 | ||
7cc46491 DJ |
821 | static struct tdesc_reg * |
822 | tdesc_find_register_early (const struct tdesc_feature *feature, | |
823 | const char *name) | |
123dc839 DJ |
824 | { |
825 | int ixr; | |
826 | struct tdesc_reg *reg; | |
827 | ||
828 | for (ixr = 0; | |
829 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
830 | ixr++) | |
831 | if (strcasecmp (reg->name, name) == 0) | |
7cc46491 | 832 | return reg; |
123dc839 | 833 | |
7cc46491 DJ |
834 | return NULL; |
835 | } | |
836 | ||
837 | /* Search FEATURE for a register named NAME. Assign REGNO to it. */ | |
838 | ||
839 | int | |
840 | tdesc_numbered_register (const struct tdesc_feature *feature, | |
841 | struct tdesc_arch_data *data, | |
842 | int regno, const char *name) | |
843 | { | |
ad068eab | 844 | struct tdesc_arch_reg arch_reg = { 0 }; |
7cc46491 DJ |
845 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); |
846 | ||
847 | if (reg == NULL) | |
848 | return 0; | |
849 | ||
850 | /* Make sure the vector includes a REGNO'th element. */ | |
ad068eab UW |
851 | while (regno >= VEC_length (tdesc_arch_reg, data->arch_regs)) |
852 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &arch_reg); | |
853 | ||
854 | arch_reg.reg = reg; | |
855 | VEC_replace (tdesc_arch_reg, data->arch_regs, regno, &arch_reg); | |
7cc46491 | 856 | return 1; |
123dc839 DJ |
857 | } |
858 | ||
58d6951d DJ |
859 | /* Search FEATURE for a register named NAME, but do not assign a fixed |
860 | register number to it. */ | |
861 | ||
862 | int | |
863 | tdesc_unnumbered_register (const struct tdesc_feature *feature, | |
864 | const char *name) | |
865 | { | |
866 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
867 | ||
868 | if (reg == NULL) | |
869 | return 0; | |
870 | ||
871 | return 1; | |
872 | } | |
873 | ||
7cc46491 DJ |
874 | /* Search FEATURE for a register whose name is in NAMES and assign |
875 | REGNO to it. */ | |
123dc839 DJ |
876 | |
877 | int | |
878 | tdesc_numbered_register_choices (const struct tdesc_feature *feature, | |
879 | struct tdesc_arch_data *data, | |
880 | int regno, const char *const names[]) | |
881 | { | |
882 | int i; | |
883 | ||
884 | for (i = 0; names[i] != NULL; i++) | |
885 | if (tdesc_numbered_register (feature, data, regno, names[i])) | |
886 | return 1; | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
7cc46491 DJ |
891 | /* Search FEATURE for a register named NAME, and return its size in |
892 | bits. The register must exist. */ | |
893 | ||
894 | int | |
895 | tdesc_register_size (const struct tdesc_feature *feature, | |
896 | const char *name) | |
897 | { | |
898 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
899 | ||
900 | gdb_assert (reg != NULL); | |
901 | return reg->bitsize; | |
902 | } | |
903 | ||
123dc839 DJ |
904 | /* Look up a register by its GDB internal register number. */ |
905 | ||
ad068eab UW |
906 | static struct tdesc_arch_reg * |
907 | tdesc_find_arch_register (struct gdbarch *gdbarch, int regno) | |
123dc839 | 908 | { |
ad068eab | 909 | struct tdesc_arch_reg *reg; |
123dc839 DJ |
910 | struct tdesc_arch_data *data; |
911 | ||
912 | data = gdbarch_data (gdbarch, tdesc_data); | |
ad068eab UW |
913 | if (regno < VEC_length (tdesc_arch_reg, data->arch_regs)) |
914 | return VEC_index (tdesc_arch_reg, data->arch_regs, regno); | |
123dc839 DJ |
915 | else |
916 | return NULL; | |
917 | } | |
918 | ||
ad068eab UW |
919 | static struct tdesc_reg * |
920 | tdesc_find_register (struct gdbarch *gdbarch, int regno) | |
921 | { | |
922 | struct tdesc_arch_reg *reg = tdesc_find_arch_register (gdbarch, regno); | |
923 | return reg? reg->reg : NULL; | |
924 | } | |
925 | ||
f8b73d13 DJ |
926 | /* Return the name of register REGNO, from the target description or |
927 | from an architecture-provided pseudo_register_name method. */ | |
928 | ||
929 | const char * | |
d93859e2 | 930 | tdesc_register_name (struct gdbarch *gdbarch, int regno) |
123dc839 | 931 | { |
d93859e2 UW |
932 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
933 | int num_regs = gdbarch_num_regs (gdbarch); | |
934 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
123dc839 DJ |
935 | |
936 | if (reg != NULL) | |
937 | return reg->name; | |
938 | ||
939 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
940 | { | |
d93859e2 | 941 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); |
123dc839 | 942 | gdb_assert (data->pseudo_register_name != NULL); |
d93859e2 | 943 | return data->pseudo_register_name (gdbarch, regno); |
123dc839 DJ |
944 | } |
945 | ||
946 | return ""; | |
947 | } | |
948 | ||
58d6951d | 949 | struct type * |
123dc839 DJ |
950 | tdesc_register_type (struct gdbarch *gdbarch, int regno) |
951 | { | |
ad068eab UW |
952 | struct tdesc_arch_reg *arch_reg = tdesc_find_arch_register (gdbarch, regno); |
953 | struct tdesc_reg *reg = arch_reg? arch_reg->reg : NULL; | |
123dc839 DJ |
954 | int num_regs = gdbarch_num_regs (gdbarch); |
955 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
956 | ||
957 | if (reg == NULL && regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
958 | { | |
959 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
960 | gdb_assert (data->pseudo_register_type != NULL); | |
961 | return data->pseudo_register_type (gdbarch, regno); | |
962 | } | |
963 | ||
964 | if (reg == NULL) | |
965 | /* Return "int0_t", since "void" has a misleading size of one. */ | |
df4df182 | 966 | return builtin_type (gdbarch)->builtin_int0; |
123dc839 | 967 | |
ad068eab | 968 | if (arch_reg->type == NULL) |
123dc839 | 969 | { |
ad068eab UW |
970 | /* First check for a predefined or target defined type. */ |
971 | if (reg->tdesc_type) | |
972 | arch_reg->type = tdesc_gdb_type (gdbarch, reg->tdesc_type); | |
973 | ||
974 | /* Next try size-sensitive type shortcuts. */ | |
975 | else if (strcmp (reg->type, "float") == 0) | |
976 | { | |
977 | if (reg->bitsize == gdbarch_float_bit (gdbarch)) | |
978 | arch_reg->type = builtin_type (gdbarch)->builtin_float; | |
979 | else if (reg->bitsize == gdbarch_double_bit (gdbarch)) | |
980 | arch_reg->type = builtin_type (gdbarch)->builtin_double; | |
981 | else if (reg->bitsize == gdbarch_long_double_bit (gdbarch)) | |
982 | arch_reg->type = builtin_type (gdbarch)->builtin_long_double; | |
983 | else | |
984 | { | |
985 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
986 | reg->name, reg->bitsize); | |
987 | arch_reg->type = builtin_type (gdbarch)->builtin_double; | |
988 | } | |
989 | } | |
990 | else if (strcmp (reg->type, "int") == 0) | |
991 | { | |
992 | if (reg->bitsize == gdbarch_long_bit (gdbarch)) | |
993 | arch_reg->type = builtin_type (gdbarch)->builtin_long; | |
994 | else if (reg->bitsize == TARGET_CHAR_BIT) | |
995 | arch_reg->type = builtin_type (gdbarch)->builtin_char; | |
996 | else if (reg->bitsize == gdbarch_short_bit (gdbarch)) | |
997 | arch_reg->type = builtin_type (gdbarch)->builtin_short; | |
998 | else if (reg->bitsize == gdbarch_int_bit (gdbarch)) | |
999 | arch_reg->type = builtin_type (gdbarch)->builtin_int; | |
1000 | else if (reg->bitsize == gdbarch_long_long_bit (gdbarch)) | |
1001 | arch_reg->type = builtin_type (gdbarch)->builtin_long_long; | |
1002 | else if (reg->bitsize == gdbarch_ptr_bit (gdbarch)) | |
1003 | /* A bit desperate by this point... */ | |
1004 | arch_reg->type = builtin_type (gdbarch)->builtin_data_ptr; | |
1005 | else | |
1006 | { | |
1007 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
1008 | reg->name, reg->bitsize); | |
1009 | arch_reg->type = builtin_type (gdbarch)->builtin_long; | |
1010 | } | |
1011 | } | |
1012 | ||
1013 | if (arch_reg->type == NULL) | |
1014 | internal_error (__FILE__, __LINE__, | |
1015 | "Register \"%s\" has an unknown type \"%s\"", | |
1016 | reg->name, reg->type); | |
123dc839 | 1017 | } |
123dc839 | 1018 | |
ad068eab | 1019 | return arch_reg->type; |
123dc839 DJ |
1020 | } |
1021 | ||
1022 | static int | |
1023 | tdesc_remote_register_number (struct gdbarch *gdbarch, int regno) | |
1024 | { | |
1025 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); | |
1026 | ||
1027 | if (reg != NULL) | |
1028 | return reg->target_regnum; | |
1029 | else | |
1030 | return -1; | |
1031 | } | |
1032 | ||
1033 | /* Check whether REGNUM is a member of REGGROUP. Registers from the | |
1034 | target description may be classified as general, float, or vector. | |
f8b73d13 DJ |
1035 | Unlike a gdbarch register_reggroup_p method, this function will |
1036 | return -1 if it does not know; the caller should handle registers | |
1037 | with no specified group. | |
123dc839 DJ |
1038 | |
1039 | Arbitrary strings (other than "general", "float", and "vector") | |
1040 | from the description are not used; they cause the register to be | |
1041 | displayed in "info all-registers" but excluded from "info | |
1042 | registers" et al. The names of containing features are also not | |
1043 | used. This might be extended to display registers in some more | |
1044 | useful groupings. | |
1045 | ||
1046 | The save-restore flag is also implemented here. */ | |
1047 | ||
f8b73d13 DJ |
1048 | int |
1049 | tdesc_register_in_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1050 | struct reggroup *reggroup) | |
123dc839 | 1051 | { |
123dc839 DJ |
1052 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
1053 | ||
123dc839 DJ |
1054 | if (reg != NULL && reg->group != NULL) |
1055 | { | |
1056 | int general_p = 0, float_p = 0, vector_p = 0; | |
1057 | ||
1058 | if (strcmp (reg->group, "general") == 0) | |
1059 | general_p = 1; | |
1060 | else if (strcmp (reg->group, "float") == 0) | |
1061 | float_p = 1; | |
1062 | else if (strcmp (reg->group, "vector") == 0) | |
1063 | vector_p = 1; | |
1064 | ||
1065 | if (reggroup == float_reggroup) | |
1066 | return float_p; | |
1067 | ||
1068 | if (reggroup == vector_reggroup) | |
1069 | return vector_p; | |
1070 | ||
1071 | if (reggroup == general_reggroup) | |
1072 | return general_p; | |
1073 | } | |
1074 | ||
1075 | if (reg != NULL | |
1076 | && (reggroup == save_reggroup || reggroup == restore_reggroup)) | |
1077 | return reg->save_restore; | |
1078 | ||
f8b73d13 DJ |
1079 | return -1; |
1080 | } | |
1081 | ||
1082 | /* Check whether REGNUM is a member of REGGROUP. Registers with no | |
1083 | group specified go to the default reggroup function and are handled | |
1084 | by type. */ | |
1085 | ||
1086 | static int | |
1087 | tdesc_register_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1088 | struct reggroup *reggroup) | |
1089 | { | |
1090 | int num_regs = gdbarch_num_regs (gdbarch); | |
1091 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
1092 | int ret; | |
1093 | ||
1094 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1095 | { | |
1096 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
58d6951d DJ |
1097 | if (data->pseudo_register_reggroup_p != NULL) |
1098 | return data->pseudo_register_reggroup_p (gdbarch, regno, reggroup); | |
1099 | /* Otherwise fall through to the default reggroup_p. */ | |
f8b73d13 DJ |
1100 | } |
1101 | ||
1102 | ret = tdesc_register_in_reggroup_p (gdbarch, regno, reggroup); | |
1103 | if (ret != -1) | |
1104 | return ret; | |
1105 | ||
123dc839 DJ |
1106 | return default_register_reggroup_p (gdbarch, regno, reggroup); |
1107 | } | |
1108 | ||
1109 | /* Record architecture-specific functions to call for pseudo-register | |
1110 | support. */ | |
1111 | ||
1112 | void | |
1113 | set_tdesc_pseudo_register_name (struct gdbarch *gdbarch, | |
1114 | gdbarch_register_name_ftype *pseudo_name) | |
1115 | { | |
1116 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
1117 | ||
1118 | data->pseudo_register_name = pseudo_name; | |
1119 | } | |
1120 | ||
1121 | void | |
1122 | set_tdesc_pseudo_register_type (struct gdbarch *gdbarch, | |
1123 | gdbarch_register_type_ftype *pseudo_type) | |
1124 | { | |
1125 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
1126 | ||
1127 | data->pseudo_register_type = pseudo_type; | |
1128 | } | |
1129 | ||
1130 | void | |
1131 | set_tdesc_pseudo_register_reggroup_p | |
1132 | (struct gdbarch *gdbarch, | |
1133 | gdbarch_register_reggroup_p_ftype *pseudo_reggroup_p) | |
1134 | { | |
1135 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
1136 | ||
1137 | data->pseudo_register_reggroup_p = pseudo_reggroup_p; | |
1138 | } | |
1139 | ||
1140 | /* Update GDBARCH to use the target description for registers. */ | |
1141 | ||
1142 | void | |
1143 | tdesc_use_registers (struct gdbarch *gdbarch, | |
7cc46491 | 1144 | const struct target_desc *target_desc, |
123dc839 DJ |
1145 | struct tdesc_arch_data *early_data) |
1146 | { | |
1147 | int num_regs = gdbarch_num_regs (gdbarch); | |
1148 | int i, ixf, ixr; | |
123dc839 DJ |
1149 | struct tdesc_feature *feature; |
1150 | struct tdesc_reg *reg; | |
1151 | struct tdesc_arch_data *data; | |
ad068eab | 1152 | struct tdesc_arch_reg *arch_reg, new_arch_reg = { 0 }; |
123dc839 DJ |
1153 | htab_t reg_hash; |
1154 | ||
123dc839 DJ |
1155 | /* We can't use the description for registers if it doesn't describe |
1156 | any. This function should only be called after validating | |
1157 | registers, so the caller should know that registers are | |
1158 | included. */ | |
1159 | gdb_assert (tdesc_has_registers (target_desc)); | |
1160 | ||
1161 | data = gdbarch_data (gdbarch, tdesc_data); | |
ad068eab | 1162 | data->arch_regs = early_data->arch_regs; |
123dc839 DJ |
1163 | xfree (early_data); |
1164 | ||
1165 | /* Build up a set of all registers, so that we can assign register | |
1166 | numbers where needed. The hash table expands as necessary, so | |
1167 | the initial size is arbitrary. */ | |
1168 | reg_hash = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL); | |
1169 | for (ixf = 0; | |
1170 | VEC_iterate (tdesc_feature_p, target_desc->features, ixf, feature); | |
1171 | ixf++) | |
1172 | for (ixr = 0; | |
1173 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1174 | ixr++) | |
1175 | { | |
1176 | void **slot = htab_find_slot (reg_hash, reg, INSERT); | |
1177 | ||
1178 | *slot = reg; | |
1179 | } | |
1180 | ||
1181 | /* Remove any registers which were assigned numbers by the | |
1182 | architecture. */ | |
ad068eab UW |
1183 | for (ixr = 0; |
1184 | VEC_iterate (tdesc_arch_reg, data->arch_regs, ixr, arch_reg); | |
1185 | ixr++) | |
1186 | if (arch_reg->reg) | |
1187 | htab_remove_elt (reg_hash, arch_reg->reg); | |
123dc839 DJ |
1188 | |
1189 | /* Assign numbers to the remaining registers and add them to the | |
f57d151a | 1190 | list of registers. The new numbers are always above gdbarch_num_regs. |
123dc839 DJ |
1191 | Iterate over the features, not the hash table, so that the order |
1192 | matches that in the target description. */ | |
1193 | ||
ad068eab UW |
1194 | gdb_assert (VEC_length (tdesc_arch_reg, data->arch_regs) <= num_regs); |
1195 | while (VEC_length (tdesc_arch_reg, data->arch_regs) < num_regs) | |
1196 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); | |
123dc839 DJ |
1197 | for (ixf = 0; |
1198 | VEC_iterate (tdesc_feature_p, target_desc->features, ixf, feature); | |
1199 | ixf++) | |
1200 | for (ixr = 0; | |
1201 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1202 | ixr++) | |
1203 | if (htab_find (reg_hash, reg) != NULL) | |
1204 | { | |
ad068eab UW |
1205 | new_arch_reg.reg = reg; |
1206 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); | |
123dc839 DJ |
1207 | num_regs++; |
1208 | } | |
1209 | ||
1210 | htab_delete (reg_hash); | |
1211 | ||
1212 | /* Update the architecture. */ | |
1213 | set_gdbarch_num_regs (gdbarch, num_regs); | |
1214 | set_gdbarch_register_name (gdbarch, tdesc_register_name); | |
1215 | set_gdbarch_register_type (gdbarch, tdesc_register_type); | |
1216 | set_gdbarch_remote_register_number (gdbarch, | |
1217 | tdesc_remote_register_number); | |
1218 | set_gdbarch_register_reggroup_p (gdbarch, tdesc_register_reggroup_p); | |
1219 | } | |
1220 | \f | |
1221 | ||
424163ea DJ |
1222 | /* Methods for constructing a target description. */ |
1223 | ||
123dc839 DJ |
1224 | static void |
1225 | tdesc_free_reg (struct tdesc_reg *reg) | |
1226 | { | |
1227 | xfree (reg->name); | |
1228 | xfree (reg->type); | |
1229 | xfree (reg->group); | |
1230 | xfree (reg); | |
1231 | } | |
1232 | ||
1233 | void | |
1234 | tdesc_create_reg (struct tdesc_feature *feature, const char *name, | |
1235 | int regnum, int save_restore, const char *group, | |
1236 | int bitsize, const char *type) | |
1237 | { | |
1238 | struct tdesc_reg *reg = XZALLOC (struct tdesc_reg); | |
1239 | ||
1240 | reg->name = xstrdup (name); | |
1241 | reg->target_regnum = regnum; | |
1242 | reg->save_restore = save_restore; | |
1243 | reg->group = group ? xstrdup (group) : NULL; | |
1244 | reg->bitsize = bitsize; | |
c8c12293 | 1245 | reg->type = type ? xstrdup (type) : xstrdup ("<unknown>"); |
123dc839 DJ |
1246 | |
1247 | /* If the register's type is target-defined, look it up now. We may not | |
1248 | have easy access to the containing feature when we want it later. */ | |
ad068eab | 1249 | reg->tdesc_type = tdesc_named_type (feature, reg->type); |
123dc839 DJ |
1250 | |
1251 | VEC_safe_push (tdesc_reg_p, feature->registers, reg); | |
1252 | } | |
1253 | ||
ad068eab UW |
1254 | static void |
1255 | tdesc_free_type (struct tdesc_type *type) | |
1256 | { | |
1257 | ||
1258 | switch (type->kind) | |
1259 | { | |
f5dff777 | 1260 | case TDESC_TYPE_STRUCT: |
ad068eab UW |
1261 | case TDESC_TYPE_UNION: |
1262 | { | |
1263 | struct tdesc_type_field *f; | |
1264 | int ix; | |
1265 | ||
1266 | for (ix = 0; | |
1267 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix, f); | |
1268 | ix++) | |
1269 | xfree (f->name); | |
1270 | ||
1271 | VEC_free (tdesc_type_field, type->u.u.fields); | |
1272 | } | |
1273 | break; | |
1274 | ||
f5dff777 DJ |
1275 | case TDESC_TYPE_FLAGS: |
1276 | { | |
1277 | struct tdesc_type_flag *f; | |
1278 | int ix; | |
1279 | ||
1280 | for (ix = 0; | |
1281 | VEC_iterate (tdesc_type_flag, type->u.f.flags, ix, f); | |
1282 | ix++) | |
1283 | xfree (f->name); | |
1284 | ||
1285 | VEC_free (tdesc_type_flag, type->u.f.flags); | |
1286 | } | |
1287 | break; | |
1288 | ||
ad068eab UW |
1289 | default: |
1290 | break; | |
1291 | } | |
1292 | ||
1293 | xfree (type->name); | |
1294 | xfree (type); | |
1295 | } | |
1296 | ||
1297 | struct tdesc_type * | |
1298 | tdesc_create_vector (struct tdesc_feature *feature, const char *name, | |
1299 | struct tdesc_type *field_type, int count) | |
1300 | { | |
1301 | struct tdesc_type *type = XZALLOC (struct tdesc_type); | |
1302 | ||
1303 | type->name = xstrdup (name); | |
1304 | type->kind = TDESC_TYPE_VECTOR; | |
1305 | type->u.v.type = field_type; | |
1306 | type->u.v.count = count; | |
1307 | ||
1308 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1309 | return type; | |
1310 | } | |
1311 | ||
f5dff777 DJ |
1312 | struct tdesc_type * |
1313 | tdesc_create_struct (struct tdesc_feature *feature, const char *name) | |
1314 | { | |
1315 | struct tdesc_type *type = XZALLOC (struct tdesc_type); | |
1316 | ||
1317 | type->name = xstrdup (name); | |
1318 | type->kind = TDESC_TYPE_STRUCT; | |
1319 | ||
1320 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1321 | return type; | |
1322 | } | |
1323 | ||
1324 | /* Set the total length of TYPE. Structs which contain bitfields may | |
1325 | omit the reserved bits, so the end of the last field may not | |
1326 | suffice. */ | |
1327 | ||
1328 | void | |
1329 | tdesc_set_struct_size (struct tdesc_type *type, LONGEST size) | |
1330 | { | |
1331 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); | |
1332 | type->u.u.size = size; | |
1333 | } | |
1334 | ||
ad068eab UW |
1335 | struct tdesc_type * |
1336 | tdesc_create_union (struct tdesc_feature *feature, const char *name) | |
1337 | { | |
1338 | struct tdesc_type *type = XZALLOC (struct tdesc_type); | |
1339 | ||
1340 | type->name = xstrdup (name); | |
1341 | type->kind = TDESC_TYPE_UNION; | |
1342 | ||
1343 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1344 | return type; | |
1345 | } | |
1346 | ||
f5dff777 DJ |
1347 | struct tdesc_type * |
1348 | tdesc_create_flags (struct tdesc_feature *feature, const char *name, | |
1349 | LONGEST size) | |
1350 | { | |
1351 | struct tdesc_type *type = XZALLOC (struct tdesc_type); | |
1352 | ||
1353 | type->name = xstrdup (name); | |
1354 | type->kind = TDESC_TYPE_FLAGS; | |
1355 | type->u.f.size = size; | |
1356 | ||
1357 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1358 | return type; | |
1359 | } | |
1360 | ||
1361 | /* Add a new field. Return a temporary pointer to the field, which | |
1362 | is only valid until the next call to tdesc_add_field (the vector | |
1363 | might be reallocated). */ | |
1364 | ||
ad068eab UW |
1365 | void |
1366 | tdesc_add_field (struct tdesc_type *type, const char *field_name, | |
1367 | struct tdesc_type *field_type) | |
1368 | { | |
1369 | struct tdesc_type_field f = { 0 }; | |
1370 | ||
f5dff777 DJ |
1371 | gdb_assert (type->kind == TDESC_TYPE_UNION |
1372 | || type->kind == TDESC_TYPE_STRUCT); | |
ad068eab UW |
1373 | |
1374 | f.name = xstrdup (field_name); | |
1375 | f.type = field_type; | |
1376 | ||
1377 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
1378 | } | |
1379 | ||
f5dff777 DJ |
1380 | /* Add a new bitfield. */ |
1381 | ||
1382 | void | |
1383 | tdesc_add_bitfield (struct tdesc_type *type, const char *field_name, | |
1384 | int start, int end) | |
1385 | { | |
1386 | struct tdesc_type_field f = { 0 }; | |
1387 | ||
1388 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); | |
1389 | ||
1390 | f.name = xstrdup (field_name); | |
1391 | f.start = start; | |
1392 | f.end = end; | |
1393 | ||
1394 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
1395 | } | |
1396 | ||
1397 | void | |
1398 | tdesc_add_flag (struct tdesc_type *type, int start, | |
1399 | const char *flag_name) | |
1400 | { | |
1401 | struct tdesc_type_flag f = { 0 }; | |
1402 | ||
1403 | gdb_assert (type->kind == TDESC_TYPE_FLAGS); | |
1404 | ||
1405 | f.name = xstrdup (flag_name); | |
1406 | f.start = start; | |
1407 | ||
1408 | VEC_safe_push (tdesc_type_flag, type->u.f.flags, &f); | |
1409 | } | |
1410 | ||
123dc839 DJ |
1411 | static void |
1412 | tdesc_free_feature (struct tdesc_feature *feature) | |
1413 | { | |
1414 | struct tdesc_reg *reg; | |
ad068eab | 1415 | struct tdesc_type *type; |
123dc839 DJ |
1416 | int ix; |
1417 | ||
1418 | for (ix = 0; VEC_iterate (tdesc_reg_p, feature->registers, ix, reg); ix++) | |
1419 | tdesc_free_reg (reg); | |
1420 | VEC_free (tdesc_reg_p, feature->registers); | |
1421 | ||
ad068eab UW |
1422 | for (ix = 0; VEC_iterate (tdesc_type_p, feature->types, ix, type); ix++) |
1423 | tdesc_free_type (type); | |
1424 | VEC_free (tdesc_type_p, feature->types); | |
123dc839 DJ |
1425 | |
1426 | xfree (feature->name); | |
1427 | xfree (feature); | |
1428 | } | |
1429 | ||
1430 | struct tdesc_feature * | |
1431 | tdesc_create_feature (struct target_desc *tdesc, const char *name) | |
1432 | { | |
1433 | struct tdesc_feature *new_feature = XZALLOC (struct tdesc_feature); | |
1434 | ||
1435 | new_feature->name = xstrdup (name); | |
1436 | ||
1437 | VEC_safe_push (tdesc_feature_p, tdesc->features, new_feature); | |
1438 | return new_feature; | |
1439 | } | |
1440 | ||
424163ea DJ |
1441 | struct target_desc * |
1442 | allocate_target_description (void) | |
1443 | { | |
1444 | return XZALLOC (struct target_desc); | |
1445 | } | |
29709017 | 1446 | |
23181151 DJ |
1447 | static void |
1448 | free_target_description (void *arg) | |
1449 | { | |
1450 | struct target_desc *target_desc = arg; | |
123dc839 | 1451 | struct tdesc_feature *feature; |
23181151 DJ |
1452 | struct property *prop; |
1453 | int ix; | |
1454 | ||
123dc839 DJ |
1455 | for (ix = 0; |
1456 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
1457 | ix++) | |
1458 | tdesc_free_feature (feature); | |
1459 | VEC_free (tdesc_feature_p, target_desc->features); | |
1460 | ||
23181151 DJ |
1461 | for (ix = 0; |
1462 | VEC_iterate (property_s, target_desc->properties, ix, prop); | |
1463 | ix++) | |
1464 | { | |
1465 | xfree (prop->key); | |
1466 | xfree (prop->value); | |
1467 | } | |
1468 | VEC_free (property_s, target_desc->properties); | |
1469 | ||
e35359c5 UW |
1470 | VEC_free (arch_p, target_desc->compatible); |
1471 | ||
23181151 DJ |
1472 | xfree (target_desc); |
1473 | } | |
1474 | ||
1475 | struct cleanup * | |
1476 | make_cleanup_free_target_description (struct target_desc *target_desc) | |
1477 | { | |
1478 | return make_cleanup (free_target_description, target_desc); | |
1479 | } | |
1480 | ||
e35359c5 UW |
1481 | void |
1482 | tdesc_add_compatible (struct target_desc *target_desc, | |
1483 | const struct bfd_arch_info *compatible) | |
1484 | { | |
1485 | const struct bfd_arch_info *compat; | |
1486 | int ix; | |
1487 | ||
1488 | /* If this instance of GDB is compiled without BFD support for the | |
1489 | compatible architecture, simply ignore it -- we would not be able | |
1490 | to handle it anyway. */ | |
1491 | if (compatible == NULL) | |
1492 | return; | |
1493 | ||
1494 | for (ix = 0; VEC_iterate (arch_p, target_desc->compatible, ix, compat); | |
1495 | ix++) | |
1496 | if (compat == compatible) | |
1497 | internal_error (__FILE__, __LINE__, | |
1498 | _("Attempted to add duplicate " | |
1499 | "compatible architecture \"%s\""), | |
1500 | compatible->printable_name); | |
1501 | ||
1502 | VEC_safe_push (arch_p, target_desc->compatible, compatible); | |
1503 | } | |
1504 | ||
29709017 DJ |
1505 | void |
1506 | set_tdesc_property (struct target_desc *target_desc, | |
1507 | const char *key, const char *value) | |
1508 | { | |
1509 | struct property *prop, new_prop; | |
1510 | int ix; | |
1511 | ||
1512 | gdb_assert (key != NULL && value != NULL); | |
1513 | ||
1514 | for (ix = 0; VEC_iterate (property_s, target_desc->properties, ix, prop); | |
1515 | ix++) | |
1516 | if (strcmp (prop->key, key) == 0) | |
1517 | internal_error (__FILE__, __LINE__, | |
1518 | _("Attempted to add duplicate property \"%s\""), key); | |
1519 | ||
23181151 DJ |
1520 | new_prop.key = xstrdup (key); |
1521 | new_prop.value = xstrdup (value); | |
29709017 DJ |
1522 | VEC_safe_push (property_s, target_desc->properties, &new_prop); |
1523 | } | |
23181151 DJ |
1524 | |
1525 | void | |
1526 | set_tdesc_architecture (struct target_desc *target_desc, | |
1527 | const struct bfd_arch_info *arch) | |
1528 | { | |
1529 | target_desc->arch = arch; | |
1530 | } | |
08d16641 PA |
1531 | |
1532 | void | |
1533 | set_tdesc_osabi (struct target_desc *target_desc, enum gdb_osabi osabi) | |
1534 | { | |
1535 | target_desc->osabi = osabi; | |
1536 | } | |
23181151 DJ |
1537 | \f |
1538 | ||
1539 | static struct cmd_list_element *tdesc_set_cmdlist, *tdesc_show_cmdlist; | |
1540 | static struct cmd_list_element *tdesc_unset_cmdlist; | |
1541 | ||
1542 | /* Helper functions for the CLI commands. */ | |
1543 | ||
1544 | static void | |
1545 | set_tdesc_cmd (char *args, int from_tty) | |
1546 | { | |
1547 | help_list (tdesc_set_cmdlist, "set tdesc ", -1, gdb_stdout); | |
1548 | } | |
1549 | ||
1550 | static void | |
1551 | show_tdesc_cmd (char *args, int from_tty) | |
1552 | { | |
1553 | cmd_show_list (tdesc_show_cmdlist, from_tty, ""); | |
1554 | } | |
1555 | ||
1556 | static void | |
1557 | unset_tdesc_cmd (char *args, int from_tty) | |
1558 | { | |
1559 | help_list (tdesc_unset_cmdlist, "unset tdesc ", -1, gdb_stdout); | |
1560 | } | |
1561 | ||
1562 | static void | |
1563 | set_tdesc_filename_cmd (char *args, int from_tty, | |
1564 | struct cmd_list_element *c) | |
1565 | { | |
1566 | target_clear_description (); | |
1567 | target_find_description (); | |
1568 | } | |
1569 | ||
1570 | static void | |
1571 | show_tdesc_filename_cmd (struct ui_file *file, int from_tty, | |
1572 | struct cmd_list_element *c, | |
1573 | const char *value) | |
1574 | { | |
1575 | if (value != NULL && *value != '\0') | |
1576 | printf_filtered (_("\ | |
1577 | The target description will be read from \"%s\".\n"), | |
1578 | value); | |
1579 | else | |
1580 | printf_filtered (_("\ | |
1581 | The target description will be read from the target.\n")); | |
1582 | } | |
1583 | ||
1584 | static void | |
1585 | unset_tdesc_filename_cmd (char *args, int from_tty) | |
1586 | { | |
1587 | xfree (target_description_filename); | |
1588 | target_description_filename = NULL; | |
1589 | target_clear_description (); | |
1590 | target_find_description (); | |
1591 | } | |
1592 | ||
81adfced DJ |
1593 | static void |
1594 | maint_print_c_tdesc_cmd (char *args, int from_tty) | |
1595 | { | |
1596 | const struct target_desc *tdesc; | |
e35359c5 | 1597 | const struct bfd_arch_info *compatible; |
81adfced DJ |
1598 | const char *filename, *inp; |
1599 | char *function, *outp; | |
1600 | struct property *prop; | |
1601 | struct tdesc_feature *feature; | |
1602 | struct tdesc_reg *reg; | |
ad068eab UW |
1603 | struct tdesc_type *type; |
1604 | struct tdesc_type_field *f; | |
81adfced DJ |
1605 | int ix, ix2, ix3; |
1606 | ||
1607 | /* Use the global target-supplied description, not the current | |
1608 | architecture's. This lets a GDB for one architecture generate C | |
1609 | for another architecture's description, even though the gdbarch | |
1610 | initialization code will reject the new description. */ | |
1611 | tdesc = current_target_desc; | |
1612 | if (tdesc == NULL) | |
1613 | error (_("There is no target description to print.")); | |
1614 | ||
1615 | if (target_description_filename == NULL) | |
1616 | error (_("The current target description did not come from an XML file.")); | |
1617 | ||
1618 | filename = lbasename (target_description_filename); | |
db3b9a10 | 1619 | function = alloca (strlen (filename) + 1); |
81adfced DJ |
1620 | for (inp = filename, outp = function; *inp != '\0'; inp++) |
1621 | if (*inp == '.') | |
1622 | break; | |
1623 | else if (*inp == '-') | |
1624 | *outp++ = '_'; | |
1625 | else | |
1626 | *outp++ = *inp; | |
1627 | *outp = '\0'; | |
1628 | ||
1629 | /* Standard boilerplate. */ | |
1630 | printf_unfiltered ("/* THIS FILE IS GENERATED. Original: %s */\n\n", | |
1631 | filename); | |
1632 | printf_unfiltered ("#include \"defs.h\"\n"); | |
c3f08eb7 | 1633 | printf_unfiltered ("#include \"osabi.h\"\n"); |
81adfced DJ |
1634 | printf_unfiltered ("#include \"target-descriptions.h\"\n"); |
1635 | printf_unfiltered ("\n"); | |
1636 | ||
1637 | printf_unfiltered ("struct target_desc *tdesc_%s;\n", function); | |
1638 | printf_unfiltered ("static void\n"); | |
1639 | printf_unfiltered ("initialize_tdesc_%s (void)\n", function); | |
1640 | printf_unfiltered ("{\n"); | |
1641 | printf_unfiltered | |
1642 | (" struct target_desc *result = allocate_target_description ();\n"); | |
1643 | printf_unfiltered (" struct tdesc_feature *feature;\n"); | |
ad068eab | 1644 | printf_unfiltered (" struct tdesc_type *field_type, *type;\n"); |
81adfced DJ |
1645 | printf_unfiltered ("\n"); |
1646 | ||
1647 | if (tdesc_architecture (tdesc) != NULL) | |
1648 | { | |
1649 | printf_unfiltered | |
1650 | (" set_tdesc_architecture (result, bfd_scan_arch (\"%s\"));\n", | |
1651 | tdesc_architecture (tdesc)->printable_name); | |
1652 | printf_unfiltered ("\n"); | |
1653 | } | |
1654 | ||
c3f08eb7 L |
1655 | if (tdesc_osabi (tdesc) > GDB_OSABI_UNKNOWN |
1656 | && tdesc_osabi (tdesc) < GDB_OSABI_INVALID) | |
1657 | { | |
1658 | printf_unfiltered | |
1659 | (" set_tdesc_osabi (result, osabi_from_tdesc_string (\"%s\"));\n", | |
1660 | gdbarch_osabi_name (tdesc_osabi (tdesc))); | |
1661 | printf_unfiltered ("\n"); | |
1662 | } | |
1663 | ||
e35359c5 UW |
1664 | for (ix = 0; VEC_iterate (arch_p, tdesc->compatible, ix, compatible); |
1665 | ix++) | |
1666 | { | |
1667 | printf_unfiltered | |
1668 | (" tdesc_add_compatible (result, bfd_scan_arch (\"%s\"));\n", | |
1669 | compatible->printable_name); | |
1670 | } | |
1671 | if (ix) | |
1672 | printf_unfiltered ("\n"); | |
1673 | ||
81adfced DJ |
1674 | for (ix = 0; VEC_iterate (property_s, tdesc->properties, ix, prop); |
1675 | ix++) | |
1676 | { | |
1677 | printf_unfiltered (" set_tdesc_property (result, \"%s\", \"%s\");\n", | |
1678 | prop->key, prop->value); | |
1679 | } | |
1680 | ||
1681 | for (ix = 0; | |
1682 | VEC_iterate (tdesc_feature_p, tdesc->features, ix, feature); | |
1683 | ix++) | |
1684 | { | |
1685 | printf_unfiltered (" feature = tdesc_create_feature (result, \"%s\");\n", | |
1686 | feature->name); | |
1687 | ||
1688 | for (ix2 = 0; | |
ad068eab | 1689 | VEC_iterate (tdesc_type_p, feature->types, ix2, type); |
81adfced DJ |
1690 | ix2++) |
1691 | { | |
ad068eab | 1692 | switch (type->kind) |
81adfced | 1693 | { |
ad068eab | 1694 | case TDESC_TYPE_VECTOR: |
81adfced DJ |
1695 | printf_unfiltered |
1696 | (" field_type = tdesc_named_type (feature, \"%s\");\n", | |
ad068eab | 1697 | type->u.v.type->name); |
81adfced | 1698 | printf_unfiltered |
ad068eab UW |
1699 | (" tdesc_create_vector (feature, \"%s\", field_type, %d);\n", |
1700 | type->name, type->u.v.count); | |
81adfced | 1701 | break; |
ad068eab | 1702 | case TDESC_TYPE_UNION: |
81adfced | 1703 | printf_unfiltered |
ad068eab UW |
1704 | (" type = tdesc_create_union (feature, \"%s\");\n", |
1705 | type->name); | |
1706 | for (ix3 = 0; | |
1707 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix3, f); | |
1708 | ix3++) | |
81adfced DJ |
1709 | { |
1710 | printf_unfiltered | |
1711 | (" field_type = tdesc_named_type (feature, \"%s\");\n", | |
ad068eab | 1712 | f->type->name); |
81adfced | 1713 | printf_unfiltered |
ad068eab UW |
1714 | (" tdesc_add_field (type, \"%s\", field_type);\n", |
1715 | f->name); | |
81adfced | 1716 | } |
81adfced DJ |
1717 | break; |
1718 | default: | |
ad068eab | 1719 | error (_("C output is not supported type \"%s\"."), type->name); |
81adfced | 1720 | } |
81adfced DJ |
1721 | printf_unfiltered ("\n"); |
1722 | } | |
1723 | ||
1724 | for (ix2 = 0; | |
1725 | VEC_iterate (tdesc_reg_p, feature->registers, ix2, reg); | |
1726 | ix2++) | |
1727 | { | |
1728 | printf_unfiltered (" tdesc_create_reg (feature, \"%s\", %ld, %d, ", | |
1729 | reg->name, reg->target_regnum, reg->save_restore); | |
1730 | if (reg->group) | |
1731 | printf_unfiltered ("\"%s\", ", reg->group); | |
1732 | else | |
1733 | printf_unfiltered ("NULL, "); | |
1734 | printf_unfiltered ("%d, \"%s\");\n", reg->bitsize, reg->type); | |
1735 | } | |
1736 | ||
1737 | printf_unfiltered ("\n"); | |
1738 | } | |
1739 | ||
1740 | printf_unfiltered (" tdesc_%s = result;\n", function); | |
1741 | printf_unfiltered ("}\n"); | |
1742 | } | |
1743 | ||
2c0b251b PA |
1744 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1745 | extern initialize_file_ftype _initialize_target_descriptions; | |
1746 | ||
23181151 DJ |
1747 | void |
1748 | _initialize_target_descriptions (void) | |
1749 | { | |
123dc839 DJ |
1750 | tdesc_data = gdbarch_data_register_pre_init (tdesc_data_init); |
1751 | ||
23181151 DJ |
1752 | add_prefix_cmd ("tdesc", class_maintenance, set_tdesc_cmd, _("\ |
1753 | Set target description specific variables."), | |
1754 | &tdesc_set_cmdlist, "set tdesc ", | |
1755 | 0 /* allow-unknown */, &setlist); | |
1756 | add_prefix_cmd ("tdesc", class_maintenance, show_tdesc_cmd, _("\ | |
1757 | Show target description specific variables."), | |
1758 | &tdesc_show_cmdlist, "show tdesc ", | |
1759 | 0 /* allow-unknown */, &showlist); | |
1760 | add_prefix_cmd ("tdesc", class_maintenance, unset_tdesc_cmd, _("\ | |
1761 | Unset target description specific variables."), | |
1762 | &tdesc_unset_cmdlist, "unset tdesc ", | |
1763 | 0 /* allow-unknown */, &unsetlist); | |
1764 | ||
1765 | add_setshow_filename_cmd ("filename", class_obscure, | |
1766 | &target_description_filename, | |
1767 | _("\ | |
1768 | Set the file to read for an XML target description"), _("\ | |
1769 | Show the file to read for an XML target description"), _("\ | |
1770 | When set, GDB will read the target description from a local\n\ | |
1771 | file instead of querying the remote target."), | |
1772 | set_tdesc_filename_cmd, | |
1773 | show_tdesc_filename_cmd, | |
1774 | &tdesc_set_cmdlist, &tdesc_show_cmdlist); | |
1775 | ||
1776 | add_cmd ("filename", class_obscure, unset_tdesc_filename_cmd, _("\ | |
1777 | Unset the file to read for an XML target description. When unset,\n\ | |
1778 | GDB will read the description from the target."), | |
1779 | &tdesc_unset_cmdlist); | |
81adfced DJ |
1780 | |
1781 | add_cmd ("c-tdesc", class_maintenance, maint_print_c_tdesc_cmd, _("\ | |
1782 | Print the current target description as a C source file."), | |
1783 | &maintenanceprintlist); | |
23181151 | 1784 | } |