Commit | Line | Data |
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424163ea DJ |
1 | /* Target description support for GDB. |
2 | ||
e2882c85 | 3 | Copyright (C) 2006-2018 Free Software Foundation, Inc. |
424163ea DJ |
4 | |
5 | Contributed by CodeSourcery. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
424163ea DJ |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
424163ea DJ |
21 | |
22 | #include "defs.h" | |
23 | #include "arch-utils.h" | |
23181151 | 24 | #include "gdbcmd.h" |
123dc839 DJ |
25 | #include "gdbtypes.h" |
26 | #include "reggroups.h" | |
424163ea DJ |
27 | #include "target.h" |
28 | #include "target-descriptions.h" | |
29709017 | 29 | #include "vec.h" |
123dc839 | 30 | #include "xml-support.h" |
23181151 | 31 | #include "xml-tdesc.h" |
c3f08eb7 | 32 | #include "osabi.h" |
424163ea | 33 | |
123dc839 DJ |
34 | #include "gdb_obstack.h" |
35 | #include "hashtab.h" | |
6ecd4729 | 36 | #include "inferior.h" |
25aa13e5 | 37 | #include <algorithm> |
27d41eac YQ |
38 | #include "completer.h" |
39 | #include "readline/tilde.h" /* tilde_expand */ | |
424163ea | 40 | |
b8df6ca7 AH |
41 | static type *make_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *ttype); |
42 | ||
6eb1e6a8 YQ |
43 | /* The interface to visit different elements of target description. */ |
44 | ||
45 | class tdesc_element_visitor | |
46 | { | |
47 | public: | |
b8df6ca7 AH |
48 | virtual void visit_pre (const target_desc *e) |
49 | {} | |
50 | ||
51 | virtual void visit_post (const target_desc *e) | |
52 | {} | |
53 | ||
54 | virtual void visit_pre (const tdesc_feature *e) | |
55 | {} | |
56 | ||
57 | virtual void visit_post (const tdesc_feature *e) | |
58 | {} | |
6eb1e6a8 | 59 | |
b8df6ca7 AH |
60 | virtual void visit (const tdesc_type_builtin *e) |
61 | {} | |
25aa13e5 | 62 | |
b8df6ca7 AH |
63 | virtual void visit (const tdesc_type_vector *e) |
64 | {} | |
d4a0e8b5 | 65 | |
b8df6ca7 AH |
66 | virtual void visit (const tdesc_type_with_fields *e) |
67 | {} | |
68 | ||
69 | virtual void visit (const tdesc_reg *e) | |
70 | {} | |
6eb1e6a8 YQ |
71 | }; |
72 | ||
73 | class tdesc_element | |
74 | { | |
75 | public: | |
76 | virtual void accept (tdesc_element_visitor &v) const = 0; | |
77 | }; | |
78 | ||
424163ea DJ |
79 | /* Types. */ |
80 | ||
129c10bc | 81 | struct property |
29709017 | 82 | { |
129c10bc SM |
83 | property (const std::string &key_, const std::string &value_) |
84 | : key (key_), value (value_) | |
85 | {} | |
86 | ||
87 | std::string key; | |
88 | std::string value; | |
89 | }; | |
29709017 | 90 | |
123dc839 DJ |
91 | /* An individual register from a target description. */ |
92 | ||
c9c895b9 | 93 | struct tdesc_reg : tdesc_element |
123dc839 | 94 | { |
a8142ee1 | 95 | tdesc_reg (struct tdesc_feature *feature, const std::string &name_, |
72ddacb7 YQ |
96 | int regnum, int save_restore_, const char *group_, |
97 | int bitsize_, const char *type_) | |
a8142ee1 | 98 | : name (name_), target_regnum (regnum), |
72ddacb7 | 99 | save_restore (save_restore_), |
a8142ee1 | 100 | group (group_ != NULL ? group_ : ""), |
72ddacb7 | 101 | bitsize (bitsize_), |
a8142ee1 | 102 | type (type_ != NULL ? type_ : "<unknown>") |
72ddacb7 YQ |
103 | { |
104 | /* If the register's type is target-defined, look it up now. We may not | |
105 | have easy access to the containing feature when we want it later. */ | |
a8142ee1 | 106 | tdesc_type = tdesc_named_type (feature, type.c_str ()); |
72ddacb7 YQ |
107 | } |
108 | ||
a8142ee1 | 109 | virtual ~tdesc_reg () = default; |
72ddacb7 | 110 | |
d6541620 | 111 | DISABLE_COPY_AND_ASSIGN (tdesc_reg); |
72ddacb7 | 112 | |
123dc839 DJ |
113 | /* The name of this register. In standard features, it may be |
114 | recognized by the architecture support code, or it may be purely | |
115 | for the user. */ | |
a8142ee1 | 116 | std::string name; |
123dc839 DJ |
117 | |
118 | /* The register number used by this target to refer to this | |
119 | register. This is used for remote p/P packets and to determine | |
120 | the ordering of registers in the remote g/G packets. */ | |
121 | long target_regnum; | |
122 | ||
123 | /* If this flag is set, GDB should save and restore this register | |
124 | around calls to an inferior function. */ | |
125 | int save_restore; | |
126 | ||
a8142ee1 | 127 | /* The name of the register group containing this register, or empty |
cef0f868 SH |
128 | if the group should be automatically determined from the register's |
129 | type. This is traditionally "general", "float", "vector" but can | |
130 | also be an arbitrary string. If defined the corresponding "info" | |
131 | command should display this register's value. The string should be | |
132 | limited to alphanumeric characters and internal hyphens. */ | |
a8142ee1 | 133 | std::string group; |
123dc839 DJ |
134 | |
135 | /* The size of the register, in bits. */ | |
136 | int bitsize; | |
137 | ||
138 | /* The type of the register. This string corresponds to either | |
139 | a named type from the target description or a predefined | |
140 | type from GDB. */ | |
a8142ee1 | 141 | std::string type; |
123dc839 DJ |
142 | |
143 | /* The target-described type corresponding to TYPE, if found. */ | |
ad068eab | 144 | struct tdesc_type *tdesc_type; |
6eb1e6a8 YQ |
145 | |
146 | void accept (tdesc_element_visitor &v) const override | |
147 | { | |
148 | v.visit (this); | |
149 | } | |
150 | ||
27d41eac YQ |
151 | bool operator== (const tdesc_reg &other) const |
152 | { | |
a8142ee1 | 153 | return (name == other.name |
27d41eac YQ |
154 | && target_regnum == other.target_regnum |
155 | && save_restore == other.save_restore | |
156 | && bitsize == other.bitsize | |
a8142ee1 SM |
157 | && group == other.group |
158 | && type == other.type); | |
27d41eac YQ |
159 | } |
160 | ||
161 | bool operator!= (const tdesc_reg &other) const | |
162 | { | |
163 | return !(*this == other); | |
164 | } | |
c9c895b9 SM |
165 | }; |
166 | ||
167 | typedef std::unique_ptr<tdesc_reg> tdesc_reg_up; | |
123dc839 DJ |
168 | |
169 | /* A named type from a target description. */ | |
ad068eab | 170 | |
d05200d1 | 171 | struct tdesc_type_field |
ad068eab | 172 | { |
d05200d1 SM |
173 | tdesc_type_field (const std::string &name_, tdesc_type *type_, |
174 | int start_, int end_) | |
175 | : name (name_), type (type_), start (start_), end (end_) | |
176 | {} | |
177 | ||
178 | std::string name; | |
ad068eab | 179 | struct tdesc_type *type; |
81516450 DE |
180 | /* For non-enum-values, either both are -1 (non-bitfield), or both are |
181 | not -1 (bitfield). For enum values, start is the value (which could be | |
182 | -1), end is -1. */ | |
f5dff777 | 183 | int start, end; |
d05200d1 | 184 | }; |
ad068eab | 185 | |
52059ffd TT |
186 | enum tdesc_type_kind |
187 | { | |
188 | /* Predefined types. */ | |
81516450 | 189 | TDESC_TYPE_BOOL, |
52059ffd TT |
190 | TDESC_TYPE_INT8, |
191 | TDESC_TYPE_INT16, | |
192 | TDESC_TYPE_INT32, | |
193 | TDESC_TYPE_INT64, | |
194 | TDESC_TYPE_INT128, | |
195 | TDESC_TYPE_UINT8, | |
196 | TDESC_TYPE_UINT16, | |
197 | TDESC_TYPE_UINT32, | |
198 | TDESC_TYPE_UINT64, | |
199 | TDESC_TYPE_UINT128, | |
200 | TDESC_TYPE_CODE_PTR, | |
201 | TDESC_TYPE_DATA_PTR, | |
202 | TDESC_TYPE_IEEE_SINGLE, | |
203 | TDESC_TYPE_IEEE_DOUBLE, | |
204 | TDESC_TYPE_ARM_FPA_EXT, | |
205 | TDESC_TYPE_I387_EXT, | |
206 | ||
207 | /* Types defined by a target feature. */ | |
208 | TDESC_TYPE_VECTOR, | |
209 | TDESC_TYPE_STRUCT, | |
210 | TDESC_TYPE_UNION, | |
81516450 DE |
211 | TDESC_TYPE_FLAGS, |
212 | TDESC_TYPE_ENUM | |
52059ffd TT |
213 | }; |
214 | ||
53c934e9 | 215 | struct tdesc_type : tdesc_element |
ad068eab | 216 | { |
082b9140 SM |
217 | tdesc_type (const std::string &name_, enum tdesc_type_kind kind_) |
218 | : name (name_), kind (kind_) | |
d4a0e8b5 SM |
219 | {} |
220 | ||
221 | virtual ~tdesc_type () = default; | |
222 | ||
223 | DISABLE_COPY_AND_ASSIGN (tdesc_type); | |
224 | ||
225 | /* The name of this type. */ | |
226 | std::string name; | |
227 | ||
228 | /* Identify the kind of this type. */ | |
229 | enum tdesc_type_kind kind; | |
230 | ||
231 | bool operator== (const tdesc_type &other) const | |
72ddacb7 | 232 | { |
d4a0e8b5 SM |
233 | return name == other.name && kind == other.kind; |
234 | } | |
d05200d1 | 235 | |
d4a0e8b5 SM |
236 | bool operator!= (const tdesc_type &other) const |
237 | { | |
238 | return !(*this == other); | |
239 | } | |
d4a0e8b5 SM |
240 | }; |
241 | ||
242 | typedef std::unique_ptr<tdesc_type> tdesc_type_up; | |
243 | ||
244 | struct tdesc_type_builtin : tdesc_type | |
245 | { | |
246 | tdesc_type_builtin (const std::string &name, enum tdesc_type_kind kind) | |
247 | : tdesc_type (name, kind) | |
248 | {} | |
249 | ||
250 | void accept (tdesc_element_visitor &v) const override | |
251 | { | |
252 | v.visit (this); | |
72ddacb7 | 253 | } |
d4a0e8b5 | 254 | }; |
d6541620 | 255 | |
d4a0e8b5 | 256 | /* tdesc_type for vector types. */ |
72ddacb7 | 257 | |
d4a0e8b5 SM |
258 | struct tdesc_type_vector : tdesc_type |
259 | { | |
260 | tdesc_type_vector (const std::string &name, tdesc_type *element_type_, int count_) | |
261 | : tdesc_type (name, TDESC_TYPE_VECTOR), | |
262 | element_type (element_type_), count (count_) | |
263 | {} | |
ad068eab | 264 | |
d4a0e8b5 SM |
265 | void accept (tdesc_element_visitor &v) const override |
266 | { | |
267 | v.visit (this); | |
268 | } | |
ad068eab | 269 | |
d4a0e8b5 SM |
270 | struct tdesc_type *element_type; |
271 | int count; | |
272 | }; | |
273 | ||
274 | /* tdesc_type for struct, union, flags, and enum types. */ | |
275 | ||
276 | struct tdesc_type_with_fields : tdesc_type | |
277 | { | |
278 | tdesc_type_with_fields (const std::string &name, tdesc_type_kind kind, | |
279 | int size_ = 0) | |
280 | : tdesc_type (name, kind), size (size_) | |
281 | {} | |
6eb1e6a8 YQ |
282 | |
283 | void accept (tdesc_element_visitor &v) const override | |
284 | { | |
285 | v.visit (this); | |
286 | } | |
287 | ||
b8df6ca7 AH |
288 | std::vector<tdesc_type_field> fields; |
289 | int size; | |
290 | }; | |
291 | ||
292 | /* Convert a tdesc_type to a gdb type. */ | |
293 | ||
294 | static type * | |
295 | make_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *ttype) | |
296 | { | |
297 | class gdb_type_creator : public tdesc_element_visitor | |
27d41eac | 298 | { |
b8df6ca7 AH |
299 | public: |
300 | gdb_type_creator (struct gdbarch *gdbarch) | |
301 | : m_gdbarch (gdbarch) | |
302 | {} | |
d4a0e8b5 | 303 | |
b8df6ca7 AH |
304 | type *get_type () |
305 | { | |
306 | return m_type; | |
307 | } | |
d4a0e8b5 | 308 | |
b8df6ca7 AH |
309 | void visit (const tdesc_type_builtin *e) override |
310 | { | |
311 | switch (e->kind) | |
312 | { | |
313 | /* Predefined types. */ | |
314 | case TDESC_TYPE_BOOL: | |
315 | m_type = builtin_type (m_gdbarch)->builtin_bool; | |
316 | return; | |
317 | case TDESC_TYPE_INT8: | |
318 | m_type = builtin_type (m_gdbarch)->builtin_int8; | |
319 | return; | |
320 | case TDESC_TYPE_INT16: | |
321 | m_type = builtin_type (m_gdbarch)->builtin_int16; | |
322 | return; | |
323 | case TDESC_TYPE_INT32: | |
324 | m_type = builtin_type (m_gdbarch)->builtin_int32; | |
325 | return; | |
326 | case TDESC_TYPE_INT64: | |
327 | m_type = builtin_type (m_gdbarch)->builtin_int64; | |
328 | return; | |
329 | case TDESC_TYPE_INT128: | |
330 | m_type = builtin_type (m_gdbarch)->builtin_int128; | |
331 | return; | |
332 | case TDESC_TYPE_UINT8: | |
333 | m_type = builtin_type (m_gdbarch)->builtin_uint8; | |
334 | return; | |
335 | case TDESC_TYPE_UINT16: | |
336 | m_type = builtin_type (m_gdbarch)->builtin_uint16; | |
337 | return; | |
338 | case TDESC_TYPE_UINT32: | |
339 | m_type = builtin_type (m_gdbarch)->builtin_uint32; | |
340 | return; | |
341 | case TDESC_TYPE_UINT64: | |
342 | m_type = builtin_type (m_gdbarch)->builtin_uint64; | |
343 | return; | |
344 | case TDESC_TYPE_UINT128: | |
345 | m_type = builtin_type (m_gdbarch)->builtin_uint128; | |
346 | return; | |
347 | case TDESC_TYPE_CODE_PTR: | |
348 | m_type = builtin_type (m_gdbarch)->builtin_func_ptr; | |
349 | return; | |
350 | case TDESC_TYPE_DATA_PTR: | |
351 | m_type = builtin_type (m_gdbarch)->builtin_data_ptr; | |
352 | return; | |
353 | } | |
d4a0e8b5 | 354 | |
b8df6ca7 AH |
355 | m_type = tdesc_find_type (m_gdbarch, e->name.c_str ()); |
356 | if (m_type != NULL) | |
357 | return; | |
27d41eac | 358 | |
b8df6ca7 AH |
359 | switch (e->kind) |
360 | { | |
361 | case TDESC_TYPE_IEEE_SINGLE: | |
362 | m_type = arch_float_type (m_gdbarch, -1, "builtin_type_ieee_single", | |
363 | floatformats_ieee_single); | |
364 | return; | |
365 | ||
366 | case TDESC_TYPE_IEEE_DOUBLE: | |
367 | m_type = arch_float_type (m_gdbarch, -1, "builtin_type_ieee_double", | |
368 | floatformats_ieee_double); | |
369 | return; | |
370 | case TDESC_TYPE_ARM_FPA_EXT: | |
371 | m_type = arch_float_type (m_gdbarch, -1, "builtin_type_arm_ext", | |
372 | floatformats_arm_ext); | |
373 | return; | |
374 | ||
375 | case TDESC_TYPE_I387_EXT: | |
376 | m_type = arch_float_type (m_gdbarch, -1, "builtin_type_i387_ext", | |
377 | floatformats_i387_ext); | |
378 | return; | |
379 | } | |
d4a0e8b5 | 380 | |
b8df6ca7 AH |
381 | internal_error (__FILE__, __LINE__, |
382 | "Type \"%s\" has an unknown kind %d", | |
383 | e->name.c_str (), e->kind); | |
384 | } | |
d4a0e8b5 | 385 | |
b8df6ca7 AH |
386 | void visit (const tdesc_type_vector *e) override |
387 | { | |
388 | m_type = tdesc_find_type (m_gdbarch, e->name.c_str ()); | |
389 | if (m_type != NULL) | |
390 | return; | |
391 | ||
392 | type *element_gdb_type = make_gdb_type (m_gdbarch, e->element_type); | |
393 | m_type = init_vector_type (element_gdb_type, e->count); | |
394 | TYPE_NAME (m_type) = xstrdup (e->name.c_str ()); | |
395 | return; | |
396 | } | |
53c934e9 | 397 | |
b8df6ca7 AH |
398 | void visit (const tdesc_type_with_fields *e) override |
399 | { | |
400 | m_type = tdesc_find_type (m_gdbarch, e->name.c_str ()); | |
401 | if (m_type != NULL) | |
402 | return; | |
d4a0e8b5 | 403 | |
b8df6ca7 AH |
404 | switch (e->kind) |
405 | { | |
406 | case TDESC_TYPE_STRUCT: | |
407 | make_gdb_type_struct (e); | |
408 | return; | |
409 | case TDESC_TYPE_UNION: | |
410 | make_gdb_type_union (e); | |
411 | return; | |
412 | case TDESC_TYPE_FLAGS: | |
413 | make_gdb_type_flags (e); | |
414 | return; | |
415 | case TDESC_TYPE_ENUM: | |
416 | make_gdb_type_enum (e); | |
417 | return; | |
418 | } | |
d4a0e8b5 | 419 | |
b8df6ca7 AH |
420 | internal_error (__FILE__, __LINE__, |
421 | "Type \"%s\" has an unknown kind %d", | |
422 | e->name.c_str (), e->kind); | |
423 | } | |
d4a0e8b5 | 424 | |
b8df6ca7 | 425 | private: |
d4a0e8b5 | 426 | |
b8df6ca7 AH |
427 | void make_gdb_type_struct (const tdesc_type_with_fields *e) |
428 | { | |
429 | m_type = arch_composite_type (m_gdbarch, NULL, TYPE_CODE_STRUCT); | |
430 | TYPE_NAME (m_type) = xstrdup (e->name.c_str ()); | |
431 | TYPE_TAG_NAME (m_type) = TYPE_NAME (m_type); | |
d4a0e8b5 | 432 | |
b8df6ca7 AH |
433 | for (const tdesc_type_field &f : e->fields) |
434 | { | |
435 | if (f.start != -1 && f.end != -1) | |
436 | { | |
437 | /* Bitfield. */ | |
438 | struct field *fld; | |
439 | struct type *field_gdb_type; | |
440 | int bitsize, total_size; | |
441 | ||
442 | /* This invariant should be preserved while creating types. */ | |
443 | gdb_assert (e->size != 0); | |
444 | if (f.type != NULL) | |
445 | field_gdb_type = make_gdb_type (m_gdbarch, f.type); | |
446 | else if (e->size > 4) | |
447 | field_gdb_type = builtin_type (m_gdbarch)->builtin_uint64; | |
448 | else | |
449 | field_gdb_type = builtin_type (m_gdbarch)->builtin_uint32; | |
450 | ||
451 | fld = append_composite_type_field_raw | |
452 | (m_type, xstrdup (f.name.c_str ()), field_gdb_type); | |
453 | ||
454 | /* For little-endian, BITPOS counts from the LSB of | |
455 | the structure and marks the LSB of the field. For | |
456 | big-endian, BITPOS counts from the MSB of the | |
457 | structure and marks the MSB of the field. Either | |
458 | way, it is the number of bits to the "left" of the | |
459 | field. To calculate this in big-endian, we need | |
460 | the total size of the structure. */ | |
461 | bitsize = f.end - f.start + 1; | |
462 | total_size = e->size * TARGET_CHAR_BIT; | |
463 | if (gdbarch_bits_big_endian (m_gdbarch)) | |
464 | SET_FIELD_BITPOS (fld[0], total_size - f.start - bitsize); | |
465 | else | |
466 | SET_FIELD_BITPOS (fld[0], f.start); | |
467 | FIELD_BITSIZE (fld[0]) = bitsize; | |
468 | } | |
469 | else | |
470 | { | |
471 | gdb_assert (f.start == -1 && f.end == -1); | |
472 | type *field_gdb_type = make_gdb_type (m_gdbarch, f.type); | |
473 | append_composite_type_field (m_type, | |
d4a0e8b5 | 474 | xstrdup (f.name.c_str ()), |
b8df6ca7 AH |
475 | field_gdb_type); |
476 | } | |
477 | } | |
d4a0e8b5 | 478 | |
b8df6ca7 AH |
479 | if (e->size != 0) |
480 | TYPE_LENGTH (m_type) = e->size; | |
481 | } | |
d4a0e8b5 | 482 | |
b8df6ca7 AH |
483 | void make_gdb_type_union (const tdesc_type_with_fields *e) |
484 | { | |
485 | m_type = arch_composite_type (m_gdbarch, NULL, TYPE_CODE_UNION); | |
486 | TYPE_NAME (m_type) = xstrdup (e->name.c_str ()); | |
d4a0e8b5 | 487 | |
b8df6ca7 AH |
488 | for (const tdesc_type_field &f : e->fields) |
489 | { | |
490 | type* field_gdb_type = make_gdb_type (m_gdbarch, f.type); | |
491 | append_composite_type_field (m_type, xstrdup (f.name.c_str ()), | |
492 | field_gdb_type); | |
493 | ||
494 | /* If any of the children of a union are vectors, flag the | |
495 | union as a vector also. This allows e.g. a union of two | |
496 | vector types to show up automatically in "info vector". */ | |
497 | if (TYPE_VECTOR (field_gdb_type)) | |
498 | TYPE_VECTOR (m_type) = 1; | |
499 | } | |
500 | } | |
d4a0e8b5 | 501 | |
b8df6ca7 | 502 | void make_gdb_type_flags (const tdesc_type_with_fields *e) |
d4a0e8b5 | 503 | { |
b8df6ca7 AH |
504 | m_type = arch_flags_type (m_gdbarch, e->name.c_str (), |
505 | e->size * TARGET_CHAR_BIT); | |
506 | ||
507 | for (const tdesc_type_field &f : e->fields) | |
508 | { | |
509 | int bitsize = f.end - f.start + 1; | |
510 | ||
511 | gdb_assert (f.type != NULL); | |
512 | type *field_gdb_type = make_gdb_type (m_gdbarch, f.type); | |
513 | append_flags_type_field (m_type, f.start, bitsize, | |
514 | field_gdb_type, f.name.c_str ()); | |
515 | } | |
d4a0e8b5 SM |
516 | } |
517 | ||
b8df6ca7 AH |
518 | void make_gdb_type_enum (const tdesc_type_with_fields *e) |
519 | { | |
520 | m_type = arch_type (m_gdbarch, TYPE_CODE_ENUM, e->size * TARGET_CHAR_BIT, | |
521 | e->name.c_str ()); | |
d4a0e8b5 | 522 | |
b8df6ca7 AH |
523 | TYPE_UNSIGNED (m_type) = 1; |
524 | for (const tdesc_type_field &f : e->fields) | |
525 | { | |
526 | struct field *fld | |
527 | = append_composite_type_field_raw (m_type, | |
528 | xstrdup (f.name.c_str ()), | |
529 | NULL); | |
d4a0e8b5 | 530 | |
b8df6ca7 AH |
531 | SET_FIELD_BITPOS (fld[0], f.start); |
532 | } | |
533 | } | |
534 | ||
535 | /* The gdbarch used. */ | |
536 | struct gdbarch *m_gdbarch; | |
537 | ||
538 | /* The type created. */ | |
539 | type *m_type; | |
540 | }; | |
541 | ||
542 | gdb_type_creator gdb_type (gdbarch); | |
543 | ttype->accept (gdb_type); | |
544 | return gdb_type.get_type (); | |
545 | } | |
123dc839 DJ |
546 | |
547 | /* A feature from a target description. Each feature is a collection | |
548 | of other elements, e.g. registers and types. */ | |
549 | ||
3eea796c | 550 | struct tdesc_feature : tdesc_element |
123dc839 | 551 | { |
f65ff9f9 SM |
552 | tdesc_feature (const std::string &name_) |
553 | : name (name_) | |
72ddacb7 YQ |
554 | {} |
555 | ||
53c934e9 | 556 | virtual ~tdesc_feature () = default; |
72ddacb7 | 557 | |
d6541620 | 558 | DISABLE_COPY_AND_ASSIGN (tdesc_feature); |
72ddacb7 | 559 | |
123dc839 DJ |
560 | /* The name of this feature. It may be recognized by the architecture |
561 | support code. */ | |
f65ff9f9 | 562 | std::string name; |
123dc839 DJ |
563 | |
564 | /* The registers associated with this feature. */ | |
858c9d13 | 565 | std::vector<tdesc_reg_up> registers; |
123dc839 DJ |
566 | |
567 | /* The types associated with this feature. */ | |
53c934e9 | 568 | std::vector<tdesc_type_up> types; |
6eb1e6a8 YQ |
569 | |
570 | void accept (tdesc_element_visitor &v) const override | |
571 | { | |
25aa13e5 | 572 | v.visit_pre (this); |
6eb1e6a8 | 573 | |
53c934e9 | 574 | for (const tdesc_type_up &type : types) |
6eb1e6a8 YQ |
575 | type->accept (v); |
576 | ||
c9c895b9 | 577 | for (const tdesc_reg_up ® : registers) |
6eb1e6a8 YQ |
578 | reg->accept (v); |
579 | ||
25aa13e5 YQ |
580 | v.visit_post (this); |
581 | } | |
27d41eac YQ |
582 | |
583 | bool operator== (const tdesc_feature &other) const | |
584 | { | |
f65ff9f9 | 585 | if (name != other.name) |
27d41eac YQ |
586 | return false; |
587 | ||
c9c895b9 | 588 | if (registers.size () != other.registers.size ()) |
27d41eac YQ |
589 | return false; |
590 | ||
c9c895b9 | 591 | for (int ix = 0; ix < registers.size (); ix++) |
27d41eac | 592 | { |
c9c895b9 SM |
593 | const tdesc_reg_up ®1 = registers[ix]; |
594 | const tdesc_reg_up ®2 = other.registers[ix]; | |
27d41eac | 595 | |
c9c895b9 | 596 | if (reg1 != reg2 && *reg1 != *reg2) |
27d41eac YQ |
597 | return false; |
598 | } | |
599 | ||
53c934e9 | 600 | if (types.size () != other.types.size ()) |
27d41eac YQ |
601 | return false; |
602 | ||
53c934e9 | 603 | for (int ix = 0; ix < types.size (); ix++) |
27d41eac | 604 | { |
53c934e9 SM |
605 | const tdesc_type_up &type1 = types[ix]; |
606 | const tdesc_type_up &type2 = other.types[ix]; | |
27d41eac | 607 | |
53c934e9 | 608 | if (type1 != type2 && *type1 != *type2) |
27d41eac YQ |
609 | return false; |
610 | } | |
611 | ||
612 | return true; | |
613 | } | |
614 | ||
615 | bool operator!= (const tdesc_feature &other) const | |
616 | { | |
617 | return !(*this == other); | |
618 | } | |
3eea796c SM |
619 | }; |
620 | ||
621 | typedef std::unique_ptr<tdesc_feature> tdesc_feature_up; | |
123dc839 DJ |
622 | |
623 | /* A target description. */ | |
624 | ||
6eb1e6a8 | 625 | struct target_desc : tdesc_element |
424163ea | 626 | { |
b468ff4c YQ |
627 | target_desc () |
628 | {} | |
629 | ||
3eea796c | 630 | virtual ~target_desc () = default; |
b468ff4c YQ |
631 | |
632 | target_desc (const target_desc &) = delete; | |
633 | void operator= (const target_desc &) = delete; | |
634 | ||
23181151 | 635 | /* The architecture reported by the target, if any. */ |
b468ff4c | 636 | const struct bfd_arch_info *arch = NULL; |
23181151 | 637 | |
08d16641 PA |
638 | /* The osabi reported by the target, if any; GDB_OSABI_UNKNOWN |
639 | otherwise. */ | |
b468ff4c | 640 | enum gdb_osabi osabi = GDB_OSABI_UNKNOWN; |
08d16641 | 641 | |
e35359c5 | 642 | /* The list of compatible architectures reported by the target. */ |
40e2a983 | 643 | std::vector<const bfd_arch_info *> compatible; |
e35359c5 | 644 | |
29709017 | 645 | /* Any architecture-specific properties specified by the target. */ |
129c10bc | 646 | std::vector<property> properties; |
123dc839 DJ |
647 | |
648 | /* The features associated with this target. */ | |
858c9d13 | 649 | std::vector<tdesc_feature_up> features; |
6eb1e6a8 YQ |
650 | |
651 | void accept (tdesc_element_visitor &v) const override | |
652 | { | |
653 | v.visit_pre (this); | |
654 | ||
3eea796c | 655 | for (const tdesc_feature_up &feature : features) |
6eb1e6a8 YQ |
656 | feature->accept (v); |
657 | ||
658 | v.visit_post (this); | |
659 | } | |
27d41eac YQ |
660 | |
661 | bool operator== (const target_desc &other) const | |
662 | { | |
663 | if (arch != other.arch) | |
664 | return false; | |
665 | ||
666 | if (osabi != other.osabi) | |
667 | return false; | |
668 | ||
3eea796c | 669 | if (features.size () != other.features.size ()) |
27d41eac YQ |
670 | return false; |
671 | ||
3eea796c | 672 | for (int ix = 0; ix < features.size (); ix++) |
27d41eac | 673 | { |
3eea796c SM |
674 | const tdesc_feature_up &feature1 = features[ix]; |
675 | const tdesc_feature_up &feature2 = other.features[ix]; | |
27d41eac | 676 | |
3eea796c | 677 | if (feature1 != feature2 && *feature1 != *feature2) |
27d41eac YQ |
678 | return false; |
679 | } | |
680 | ||
681 | return true; | |
682 | } | |
683 | ||
684 | bool operator!= (const target_desc &other) const | |
685 | { | |
686 | return !(*this == other); | |
687 | } | |
123dc839 DJ |
688 | }; |
689 | ||
690 | /* Per-architecture data associated with a target description. The | |
691 | target description may be shared by multiple architectures, but | |
692 | this data is private to one gdbarch. */ | |
693 | ||
f0cddbef | 694 | struct tdesc_arch_reg |
ad068eab | 695 | { |
f0cddbef SM |
696 | tdesc_arch_reg (tdesc_reg *reg_, struct type *type_) |
697 | : reg (reg_), type (type_) | |
698 | {} | |
699 | ||
ad068eab UW |
700 | struct tdesc_reg *reg; |
701 | struct type *type; | |
f0cddbef | 702 | }; |
ad068eab | 703 | |
123dc839 DJ |
704 | struct tdesc_arch_data |
705 | { | |
ad068eab | 706 | /* A list of register/type pairs, indexed by GDB's internal register number. |
123dc839 DJ |
707 | During initialization of the gdbarch this list is used to store |
708 | registers which the architecture assigns a fixed register number. | |
709 | Registers which are NULL in this array, or off the end, are | |
710 | treated as zero-sized and nameless (i.e. placeholders in the | |
711 | numbering). */ | |
f0cddbef | 712 | std::vector<tdesc_arch_reg> arch_regs; |
123dc839 DJ |
713 | |
714 | /* Functions which report the register name, type, and reggroups for | |
715 | pseudo-registers. */ | |
f0cddbef SM |
716 | gdbarch_register_name_ftype *pseudo_register_name = NULL; |
717 | gdbarch_register_type_ftype *pseudo_register_type = NULL; | |
718 | gdbarch_register_reggroup_p_ftype *pseudo_register_reggroup_p = NULL; | |
424163ea DJ |
719 | }; |
720 | ||
6ecd4729 PA |
721 | /* Info about an inferior's target description. There's one of these |
722 | for each inferior. */ | |
424163ea | 723 | |
6ecd4729 PA |
724 | struct target_desc_info |
725 | { | |
726 | /* A flag indicating that a description has already been fetched | |
727 | from the target, so it should not be queried again. */ | |
728 | ||
729 | int fetched; | |
424163ea | 730 | |
6ecd4729 PA |
731 | /* The description fetched from the target, or NULL if the target |
732 | did not supply any description. Only valid when | |
733 | target_desc_fetched is set. Only the description initialization | |
734 | code should access this; normally, the description should be | |
735 | accessed through the gdbarch object. */ | |
424163ea | 736 | |
6ecd4729 | 737 | const struct target_desc *tdesc; |
424163ea | 738 | |
6ecd4729 PA |
739 | /* The filename to read a target description from, as set by "set |
740 | tdesc filename ..." */ | |
424163ea | 741 | |
6ecd4729 PA |
742 | char *filename; |
743 | }; | |
23181151 | 744 | |
6ecd4729 PA |
745 | /* Get the inferior INF's target description info, allocating one on |
746 | the stop if necessary. */ | |
23181151 | 747 | |
6ecd4729 PA |
748 | static struct target_desc_info * |
749 | get_tdesc_info (struct inferior *inf) | |
750 | { | |
751 | if (inf->tdesc_info == NULL) | |
752 | inf->tdesc_info = XCNEW (struct target_desc_info); | |
753 | return inf->tdesc_info; | |
754 | } | |
23181151 | 755 | |
123dc839 DJ |
756 | /* A handle for architecture-specific data associated with the |
757 | target description (see struct tdesc_arch_data). */ | |
758 | ||
759 | static struct gdbarch_data *tdesc_data; | |
760 | ||
6ecd4729 PA |
761 | /* See target-descriptions.h. */ |
762 | ||
763 | int | |
764 | target_desc_info_from_user_p (struct target_desc_info *info) | |
765 | { | |
766 | return info != NULL && info->filename != NULL; | |
767 | } | |
768 | ||
769 | /* See target-descriptions.h. */ | |
770 | ||
771 | void | |
772 | copy_inferior_target_desc_info (struct inferior *destinf, struct inferior *srcinf) | |
773 | { | |
774 | struct target_desc_info *src = get_tdesc_info (srcinf); | |
775 | struct target_desc_info *dest = get_tdesc_info (destinf); | |
776 | ||
777 | dest->fetched = src->fetched; | |
778 | dest->tdesc = src->tdesc; | |
779 | dest->filename = src->filename != NULL ? xstrdup (src->filename) : NULL; | |
780 | } | |
781 | ||
782 | /* See target-descriptions.h. */ | |
783 | ||
784 | void | |
785 | target_desc_info_free (struct target_desc_info *tdesc_info) | |
786 | { | |
787 | if (tdesc_info != NULL) | |
788 | { | |
789 | xfree (tdesc_info->filename); | |
790 | xfree (tdesc_info); | |
791 | } | |
792 | } | |
793 | ||
794 | /* Convenience helper macros. */ | |
795 | ||
796 | #define target_desc_fetched \ | |
797 | get_tdesc_info (current_inferior ())->fetched | |
798 | #define current_target_desc \ | |
799 | get_tdesc_info (current_inferior ())->tdesc | |
800 | #define target_description_filename \ | |
801 | get_tdesc_info (current_inferior ())->filename | |
802 | ||
803 | /* The string manipulated by the "set tdesc filename ..." command. */ | |
804 | ||
805 | static char *tdesc_filename_cmd_string; | |
806 | ||
424163ea DJ |
807 | /* Fetch the current target's description, and switch the current |
808 | architecture to one which incorporates that description. */ | |
809 | ||
810 | void | |
811 | target_find_description (void) | |
812 | { | |
813 | /* If we've already fetched a description from the target, don't do | |
814 | it again. This allows a target to fetch the description early, | |
815 | during its to_open or to_create_inferior, if it needs extra | |
816 | information about the target to initialize. */ | |
817 | if (target_desc_fetched) | |
818 | return; | |
819 | ||
820 | /* The current architecture should not have any target description | |
821 | specified. It should have been cleared, e.g. when we | |
822 | disconnected from the previous target. */ | |
f5656ead | 823 | gdb_assert (gdbarch_target_desc (target_gdbarch ()) == NULL); |
424163ea | 824 | |
23181151 DJ |
825 | /* First try to fetch an XML description from the user-specified |
826 | file. */ | |
827 | current_target_desc = NULL; | |
828 | if (target_description_filename != NULL | |
829 | && *target_description_filename != '\0') | |
830 | current_target_desc | |
831 | = file_read_description_xml (target_description_filename); | |
832 | ||
833 | /* Next try to read the description from the current target using | |
834 | target objects. */ | |
835 | if (current_target_desc == NULL) | |
836 | current_target_desc = target_read_description_xml (¤t_target); | |
837 | ||
838 | /* If that failed try a target-specific hook. */ | |
839 | if (current_target_desc == NULL) | |
840 | current_target_desc = target_read_description (¤t_target); | |
424163ea DJ |
841 | |
842 | /* If a non-NULL description was returned, then update the current | |
843 | architecture. */ | |
844 | if (current_target_desc) | |
845 | { | |
846 | struct gdbarch_info info; | |
847 | ||
848 | gdbarch_info_init (&info); | |
849 | info.target_desc = current_target_desc; | |
850 | if (!gdbarch_update_p (info)) | |
123dc839 DJ |
851 | warning (_("Architecture rejected target-supplied description")); |
852 | else | |
853 | { | |
854 | struct tdesc_arch_data *data; | |
855 | ||
19ba03f4 SM |
856 | data = ((struct tdesc_arch_data *) |
857 | gdbarch_data (target_gdbarch (), tdesc_data)); | |
123dc839 | 858 | if (tdesc_has_registers (current_target_desc) |
f0cddbef | 859 | && data->arch_regs.empty ()) |
123dc839 DJ |
860 | warning (_("Target-supplied registers are not supported " |
861 | "by the current architecture")); | |
862 | } | |
424163ea DJ |
863 | } |
864 | ||
865 | /* Now that we know this description is usable, record that we | |
866 | fetched it. */ | |
867 | target_desc_fetched = 1; | |
868 | } | |
869 | ||
870 | /* Discard any description fetched from the current target, and switch | |
871 | the current architecture to one with no target description. */ | |
872 | ||
873 | void | |
874 | target_clear_description (void) | |
875 | { | |
876 | struct gdbarch_info info; | |
877 | ||
878 | if (!target_desc_fetched) | |
879 | return; | |
880 | ||
881 | target_desc_fetched = 0; | |
882 | current_target_desc = NULL; | |
883 | ||
884 | gdbarch_info_init (&info); | |
885 | if (!gdbarch_update_p (info)) | |
886 | internal_error (__FILE__, __LINE__, | |
887 | _("Could not remove target-supplied description")); | |
888 | } | |
889 | ||
890 | /* Return the global current target description. This should only be | |
891 | used by gdbarch initialization code; most access should be through | |
892 | an existing gdbarch. */ | |
893 | ||
894 | const struct target_desc * | |
895 | target_current_description (void) | |
896 | { | |
897 | if (target_desc_fetched) | |
898 | return current_target_desc; | |
899 | ||
900 | return NULL; | |
901 | } | |
e35359c5 UW |
902 | |
903 | /* Return non-zero if this target description is compatible | |
904 | with the given BFD architecture. */ | |
905 | ||
906 | int | |
907 | tdesc_compatible_p (const struct target_desc *target_desc, | |
908 | const struct bfd_arch_info *arch) | |
909 | { | |
40e2a983 | 910 | for (const bfd_arch_info *compat : target_desc->compatible) |
e35359c5 UW |
911 | { |
912 | if (compat == arch | |
913 | || arch->compatible (arch, compat) | |
914 | || compat->compatible (compat, arch)) | |
915 | return 1; | |
916 | } | |
917 | ||
918 | return 0; | |
919 | } | |
23181151 DJ |
920 | \f |
921 | ||
123dc839 | 922 | /* Direct accessors for target descriptions. */ |
424163ea | 923 | |
29709017 DJ |
924 | /* Return the string value of a property named KEY, or NULL if the |
925 | property was not specified. */ | |
926 | ||
927 | const char * | |
928 | tdesc_property (const struct target_desc *target_desc, const char *key) | |
929 | { | |
129c10bc SM |
930 | for (const property &prop : target_desc->properties) |
931 | if (prop.key == key) | |
932 | return prop.value.c_str (); | |
29709017 DJ |
933 | |
934 | return NULL; | |
935 | } | |
936 | ||
23181151 DJ |
937 | /* Return the BFD architecture associated with this target |
938 | description, or NULL if no architecture was specified. */ | |
939 | ||
940 | const struct bfd_arch_info * | |
941 | tdesc_architecture (const struct target_desc *target_desc) | |
942 | { | |
943 | return target_desc->arch; | |
944 | } | |
08d16641 PA |
945 | |
946 | /* Return the OSABI associated with this target description, or | |
947 | GDB_OSABI_UNKNOWN if no osabi was specified. */ | |
948 | ||
949 | enum gdb_osabi | |
950 | tdesc_osabi (const struct target_desc *target_desc) | |
951 | { | |
952 | return target_desc->osabi; | |
953 | } | |
954 | ||
23181151 DJ |
955 | \f |
956 | ||
123dc839 DJ |
957 | /* Return 1 if this target description includes any registers. */ |
958 | ||
959 | int | |
960 | tdesc_has_registers (const struct target_desc *target_desc) | |
961 | { | |
123dc839 DJ |
962 | if (target_desc == NULL) |
963 | return 0; | |
964 | ||
3eea796c | 965 | for (const tdesc_feature_up &feature : target_desc->features) |
c9c895b9 | 966 | if (!feature->registers.empty ()) |
123dc839 DJ |
967 | return 1; |
968 | ||
969 | return 0; | |
970 | } | |
971 | ||
972 | /* Return the feature with the given name, if present, or NULL if | |
973 | the named feature is not found. */ | |
974 | ||
975 | const struct tdesc_feature * | |
976 | tdesc_find_feature (const struct target_desc *target_desc, | |
977 | const char *name) | |
978 | { | |
3eea796c | 979 | for (const tdesc_feature_up &feature : target_desc->features) |
f65ff9f9 | 980 | if (feature->name == name) |
3eea796c | 981 | return feature.get (); |
123dc839 DJ |
982 | |
983 | return NULL; | |
984 | } | |
985 | ||
986 | /* Return the name of FEATURE. */ | |
987 | ||
988 | const char * | |
989 | tdesc_feature_name (const struct tdesc_feature *feature) | |
990 | { | |
f65ff9f9 | 991 | return feature->name.c_str (); |
123dc839 DJ |
992 | } |
993 | ||
ad068eab | 994 | /* Predefined types. */ |
d4a0e8b5 | 995 | static tdesc_type_builtin tdesc_predefined_types[] = |
81adfced | 996 | { |
81516450 | 997 | { "bool", TDESC_TYPE_BOOL }, |
ad068eab UW |
998 | { "int8", TDESC_TYPE_INT8 }, |
999 | { "int16", TDESC_TYPE_INT16 }, | |
1000 | { "int32", TDESC_TYPE_INT32 }, | |
1001 | { "int64", TDESC_TYPE_INT64 }, | |
1002 | { "int128", TDESC_TYPE_INT128 }, | |
1003 | { "uint8", TDESC_TYPE_UINT8 }, | |
1004 | { "uint16", TDESC_TYPE_UINT16 }, | |
1005 | { "uint32", TDESC_TYPE_UINT32 }, | |
1006 | { "uint64", TDESC_TYPE_UINT64 }, | |
1007 | { "uint128", TDESC_TYPE_UINT128 }, | |
1008 | { "code_ptr", TDESC_TYPE_CODE_PTR }, | |
1009 | { "data_ptr", TDESC_TYPE_DATA_PTR }, | |
1010 | { "ieee_single", TDESC_TYPE_IEEE_SINGLE }, | |
1011 | { "ieee_double", TDESC_TYPE_IEEE_DOUBLE }, | |
9fd3625f | 1012 | { "arm_fpa_ext", TDESC_TYPE_ARM_FPA_EXT }, |
a6f5ef51 | 1013 | { "i387_ext", TDESC_TYPE_I387_EXT } |
ad068eab | 1014 | }; |
81adfced | 1015 | |
81516450 DE |
1016 | /* Lookup a predefined type. */ |
1017 | ||
1018 | static struct tdesc_type * | |
1019 | tdesc_predefined_type (enum tdesc_type_kind kind) | |
1020 | { | |
798a7429 | 1021 | for (int ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++) |
81516450 DE |
1022 | if (tdesc_predefined_types[ix].kind == kind) |
1023 | return &tdesc_predefined_types[ix]; | |
1024 | ||
1025 | gdb_assert_not_reached ("bad predefined tdesc type"); | |
1026 | } | |
1027 | ||
f46cd62a | 1028 | /* See common/tdesc.h. */ |
123dc839 | 1029 | |
ad068eab | 1030 | struct tdesc_type * |
123dc839 DJ |
1031 | tdesc_named_type (const struct tdesc_feature *feature, const char *id) |
1032 | { | |
123dc839 | 1033 | /* First try target-defined types. */ |
53c934e9 | 1034 | for (const tdesc_type_up &type : feature->types) |
082b9140 | 1035 | if (type->name == id) |
53c934e9 | 1036 | return type.get (); |
123dc839 | 1037 | |
81adfced | 1038 | /* Next try the predefined types. */ |
53c934e9 | 1039 | for (int ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++) |
082b9140 | 1040 | if (tdesc_predefined_types[ix].name == id) |
ad068eab | 1041 | return &tdesc_predefined_types[ix]; |
123dc839 DJ |
1042 | |
1043 | return NULL; | |
1044 | } | |
ad068eab | 1045 | |
9fd3625f L |
1046 | /* Lookup type associated with ID. */ |
1047 | ||
1048 | struct type * | |
1049 | tdesc_find_type (struct gdbarch *gdbarch, const char *id) | |
1050 | { | |
f0cddbef SM |
1051 | tdesc_arch_data *data |
1052 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
9fd3625f | 1053 | |
f0cddbef | 1054 | for (const tdesc_arch_reg ® : data->arch_regs) |
9fd3625f | 1055 | { |
f0cddbef SM |
1056 | if (reg.reg |
1057 | && reg.reg->tdesc_type | |
1058 | && reg.type | |
1059 | && reg.reg->tdesc_type->name == id) | |
1060 | return reg.type; | |
9fd3625f L |
1061 | } |
1062 | ||
1063 | return NULL; | |
1064 | } | |
1065 | ||
123dc839 DJ |
1066 | /* Support for registers from target descriptions. */ |
1067 | ||
1068 | /* Construct the per-gdbarch data. */ | |
1069 | ||
1070 | static void * | |
1071 | tdesc_data_init (struct obstack *obstack) | |
1072 | { | |
1073 | struct tdesc_arch_data *data; | |
1074 | ||
1075 | data = OBSTACK_ZALLOC (obstack, struct tdesc_arch_data); | |
f0cddbef SM |
1076 | new (data) tdesc_arch_data (); |
1077 | ||
123dc839 DJ |
1078 | return data; |
1079 | } | |
1080 | ||
1081 | /* Similar, but for the temporary copy used during architecture | |
1082 | initialization. */ | |
1083 | ||
1084 | struct tdesc_arch_data * | |
1085 | tdesc_data_alloc (void) | |
1086 | { | |
f0cddbef | 1087 | return new tdesc_arch_data (); |
123dc839 DJ |
1088 | } |
1089 | ||
1090 | /* Free something allocated by tdesc_data_alloc, if it is not going | |
1091 | to be used (for instance if it was unsuitable for the | |
1092 | architecture). */ | |
1093 | ||
1094 | void | |
1095 | tdesc_data_cleanup (void *data_untyped) | |
1096 | { | |
19ba03f4 | 1097 | struct tdesc_arch_data *data = (struct tdesc_arch_data *) data_untyped; |
123dc839 | 1098 | |
f0cddbef | 1099 | delete data; |
123dc839 DJ |
1100 | } |
1101 | ||
1102 | /* Search FEATURE for a register named NAME. */ | |
1103 | ||
7cc46491 DJ |
1104 | static struct tdesc_reg * |
1105 | tdesc_find_register_early (const struct tdesc_feature *feature, | |
1106 | const char *name) | |
123dc839 | 1107 | { |
c9c895b9 | 1108 | for (const tdesc_reg_up ® : feature->registers) |
a8142ee1 | 1109 | if (strcasecmp (reg->name.c_str (), name) == 0) |
c9c895b9 | 1110 | return reg.get (); |
123dc839 | 1111 | |
7cc46491 DJ |
1112 | return NULL; |
1113 | } | |
1114 | ||
1115 | /* Search FEATURE for a register named NAME. Assign REGNO to it. */ | |
1116 | ||
1117 | int | |
1118 | tdesc_numbered_register (const struct tdesc_feature *feature, | |
1119 | struct tdesc_arch_data *data, | |
1120 | int regno, const char *name) | |
1121 | { | |
1122 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
1123 | ||
1124 | if (reg == NULL) | |
1125 | return 0; | |
1126 | ||
1127 | /* Make sure the vector includes a REGNO'th element. */ | |
f0cddbef SM |
1128 | while (regno >= data->arch_regs.size ()) |
1129 | data->arch_regs.emplace_back (nullptr, nullptr); | |
1130 | ||
1131 | data->arch_regs[regno] = tdesc_arch_reg (reg, NULL); | |
ad068eab | 1132 | |
7cc46491 | 1133 | return 1; |
123dc839 DJ |
1134 | } |
1135 | ||
58d6951d DJ |
1136 | /* Search FEATURE for a register named NAME, but do not assign a fixed |
1137 | register number to it. */ | |
1138 | ||
1139 | int | |
1140 | tdesc_unnumbered_register (const struct tdesc_feature *feature, | |
1141 | const char *name) | |
1142 | { | |
1143 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
1144 | ||
1145 | if (reg == NULL) | |
1146 | return 0; | |
1147 | ||
1148 | return 1; | |
1149 | } | |
1150 | ||
7cc46491 DJ |
1151 | /* Search FEATURE for a register whose name is in NAMES and assign |
1152 | REGNO to it. */ | |
123dc839 DJ |
1153 | |
1154 | int | |
1155 | tdesc_numbered_register_choices (const struct tdesc_feature *feature, | |
1156 | struct tdesc_arch_data *data, | |
1157 | int regno, const char *const names[]) | |
1158 | { | |
1159 | int i; | |
1160 | ||
1161 | for (i = 0; names[i] != NULL; i++) | |
1162 | if (tdesc_numbered_register (feature, data, regno, names[i])) | |
1163 | return 1; | |
1164 | ||
1165 | return 0; | |
1166 | } | |
1167 | ||
7cc46491 DJ |
1168 | /* Search FEATURE for a register named NAME, and return its size in |
1169 | bits. The register must exist. */ | |
1170 | ||
1171 | int | |
1172 | tdesc_register_size (const struct tdesc_feature *feature, | |
1173 | const char *name) | |
1174 | { | |
1175 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
1176 | ||
1177 | gdb_assert (reg != NULL); | |
1178 | return reg->bitsize; | |
1179 | } | |
1180 | ||
123dc839 DJ |
1181 | /* Look up a register by its GDB internal register number. */ |
1182 | ||
ad068eab UW |
1183 | static struct tdesc_arch_reg * |
1184 | tdesc_find_arch_register (struct gdbarch *gdbarch, int regno) | |
123dc839 | 1185 | { |
123dc839 DJ |
1186 | struct tdesc_arch_data *data; |
1187 | ||
19ba03f4 | 1188 | data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); |
f0cddbef SM |
1189 | if (regno < data->arch_regs.size ()) |
1190 | return &data->arch_regs[regno]; | |
123dc839 DJ |
1191 | else |
1192 | return NULL; | |
1193 | } | |
1194 | ||
ad068eab UW |
1195 | static struct tdesc_reg * |
1196 | tdesc_find_register (struct gdbarch *gdbarch, int regno) | |
1197 | { | |
1198 | struct tdesc_arch_reg *reg = tdesc_find_arch_register (gdbarch, regno); | |
5d502164 | 1199 | |
ad068eab UW |
1200 | return reg? reg->reg : NULL; |
1201 | } | |
1202 | ||
f8b73d13 DJ |
1203 | /* Return the name of register REGNO, from the target description or |
1204 | from an architecture-provided pseudo_register_name method. */ | |
1205 | ||
1206 | const char * | |
d93859e2 | 1207 | tdesc_register_name (struct gdbarch *gdbarch, int regno) |
123dc839 | 1208 | { |
d93859e2 UW |
1209 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
1210 | int num_regs = gdbarch_num_regs (gdbarch); | |
1211 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
123dc839 DJ |
1212 | |
1213 | if (reg != NULL) | |
a8142ee1 | 1214 | return reg->name.c_str (); |
123dc839 DJ |
1215 | |
1216 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1217 | { | |
19ba03f4 SM |
1218 | struct tdesc_arch_data *data |
1219 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1220 | |
123dc839 | 1221 | gdb_assert (data->pseudo_register_name != NULL); |
d93859e2 | 1222 | return data->pseudo_register_name (gdbarch, regno); |
123dc839 DJ |
1223 | } |
1224 | ||
1225 | return ""; | |
1226 | } | |
1227 | ||
58d6951d | 1228 | struct type * |
123dc839 DJ |
1229 | tdesc_register_type (struct gdbarch *gdbarch, int regno) |
1230 | { | |
ad068eab UW |
1231 | struct tdesc_arch_reg *arch_reg = tdesc_find_arch_register (gdbarch, regno); |
1232 | struct tdesc_reg *reg = arch_reg? arch_reg->reg : NULL; | |
123dc839 DJ |
1233 | int num_regs = gdbarch_num_regs (gdbarch); |
1234 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
1235 | ||
1236 | if (reg == NULL && regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1237 | { | |
19ba03f4 SM |
1238 | struct tdesc_arch_data *data |
1239 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1240 | |
123dc839 DJ |
1241 | gdb_assert (data->pseudo_register_type != NULL); |
1242 | return data->pseudo_register_type (gdbarch, regno); | |
1243 | } | |
1244 | ||
1245 | if (reg == NULL) | |
1246 | /* Return "int0_t", since "void" has a misleading size of one. */ | |
df4df182 | 1247 | return builtin_type (gdbarch)->builtin_int0; |
123dc839 | 1248 | |
ad068eab | 1249 | if (arch_reg->type == NULL) |
123dc839 | 1250 | { |
ad068eab UW |
1251 | /* First check for a predefined or target defined type. */ |
1252 | if (reg->tdesc_type) | |
b8df6ca7 | 1253 | arch_reg->type = make_gdb_type (gdbarch, reg->tdesc_type); |
ad068eab UW |
1254 | |
1255 | /* Next try size-sensitive type shortcuts. */ | |
a8142ee1 | 1256 | else if (reg->type == "float") |
ad068eab UW |
1257 | { |
1258 | if (reg->bitsize == gdbarch_float_bit (gdbarch)) | |
1259 | arch_reg->type = builtin_type (gdbarch)->builtin_float; | |
1260 | else if (reg->bitsize == gdbarch_double_bit (gdbarch)) | |
1261 | arch_reg->type = builtin_type (gdbarch)->builtin_double; | |
1262 | else if (reg->bitsize == gdbarch_long_double_bit (gdbarch)) | |
1263 | arch_reg->type = builtin_type (gdbarch)->builtin_long_double; | |
1264 | else | |
1265 | { | |
1266 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
a8142ee1 | 1267 | reg->name.c_str (), reg->bitsize); |
ad068eab UW |
1268 | arch_reg->type = builtin_type (gdbarch)->builtin_double; |
1269 | } | |
1270 | } | |
a8142ee1 | 1271 | else if (reg->type == "int") |
ad068eab UW |
1272 | { |
1273 | if (reg->bitsize == gdbarch_long_bit (gdbarch)) | |
1274 | arch_reg->type = builtin_type (gdbarch)->builtin_long; | |
1275 | else if (reg->bitsize == TARGET_CHAR_BIT) | |
1276 | arch_reg->type = builtin_type (gdbarch)->builtin_char; | |
1277 | else if (reg->bitsize == gdbarch_short_bit (gdbarch)) | |
1278 | arch_reg->type = builtin_type (gdbarch)->builtin_short; | |
1279 | else if (reg->bitsize == gdbarch_int_bit (gdbarch)) | |
1280 | arch_reg->type = builtin_type (gdbarch)->builtin_int; | |
1281 | else if (reg->bitsize == gdbarch_long_long_bit (gdbarch)) | |
1282 | arch_reg->type = builtin_type (gdbarch)->builtin_long_long; | |
1283 | else if (reg->bitsize == gdbarch_ptr_bit (gdbarch)) | |
c378eb4e | 1284 | /* A bit desperate by this point... */ |
ad068eab UW |
1285 | arch_reg->type = builtin_type (gdbarch)->builtin_data_ptr; |
1286 | else | |
1287 | { | |
1288 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
a8142ee1 | 1289 | reg->name.c_str (), reg->bitsize); |
ad068eab UW |
1290 | arch_reg->type = builtin_type (gdbarch)->builtin_long; |
1291 | } | |
1292 | } | |
1293 | ||
1294 | if (arch_reg->type == NULL) | |
1295 | internal_error (__FILE__, __LINE__, | |
1296 | "Register \"%s\" has an unknown type \"%s\"", | |
a8142ee1 | 1297 | reg->name.c_str (), reg->type.c_str ()); |
123dc839 | 1298 | } |
123dc839 | 1299 | |
ad068eab | 1300 | return arch_reg->type; |
123dc839 DJ |
1301 | } |
1302 | ||
1303 | static int | |
1304 | tdesc_remote_register_number (struct gdbarch *gdbarch, int regno) | |
1305 | { | |
1306 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); | |
1307 | ||
1308 | if (reg != NULL) | |
1309 | return reg->target_regnum; | |
1310 | else | |
1311 | return -1; | |
1312 | } | |
1313 | ||
1314 | /* Check whether REGNUM is a member of REGGROUP. Registers from the | |
cef0f868 SH |
1315 | target description may be classified as general, float, vector or other |
1316 | register groups registered with reggroup_add(). Unlike a gdbarch | |
1317 | register_reggroup_p method, this function will return -1 if it does not | |
1318 | know; the caller should handle registers with no specified group. | |
1319 | ||
1320 | The names of containing features are not used. This might be extended | |
1321 | to display registers in some more useful groupings. | |
123dc839 DJ |
1322 | |
1323 | The save-restore flag is also implemented here. */ | |
1324 | ||
f8b73d13 DJ |
1325 | int |
1326 | tdesc_register_in_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1327 | struct reggroup *reggroup) | |
123dc839 | 1328 | { |
123dc839 DJ |
1329 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
1330 | ||
cef0f868 SH |
1331 | if (reg != NULL && !reg->group.empty () |
1332 | && (reg->group == reggroup_name (reggroup))) | |
1333 | return 1; | |
123dc839 DJ |
1334 | |
1335 | if (reg != NULL | |
1336 | && (reggroup == save_reggroup || reggroup == restore_reggroup)) | |
1337 | return reg->save_restore; | |
1338 | ||
f8b73d13 DJ |
1339 | return -1; |
1340 | } | |
1341 | ||
1342 | /* Check whether REGNUM is a member of REGGROUP. Registers with no | |
1343 | group specified go to the default reggroup function and are handled | |
1344 | by type. */ | |
1345 | ||
1346 | static int | |
1347 | tdesc_register_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1348 | struct reggroup *reggroup) | |
1349 | { | |
1350 | int num_regs = gdbarch_num_regs (gdbarch); | |
1351 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
1352 | int ret; | |
1353 | ||
1354 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1355 | { | |
19ba03f4 SM |
1356 | struct tdesc_arch_data *data |
1357 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1358 | |
58d6951d DJ |
1359 | if (data->pseudo_register_reggroup_p != NULL) |
1360 | return data->pseudo_register_reggroup_p (gdbarch, regno, reggroup); | |
1361 | /* Otherwise fall through to the default reggroup_p. */ | |
f8b73d13 DJ |
1362 | } |
1363 | ||
1364 | ret = tdesc_register_in_reggroup_p (gdbarch, regno, reggroup); | |
1365 | if (ret != -1) | |
1366 | return ret; | |
1367 | ||
123dc839 DJ |
1368 | return default_register_reggroup_p (gdbarch, regno, reggroup); |
1369 | } | |
1370 | ||
1371 | /* Record architecture-specific functions to call for pseudo-register | |
1372 | support. */ | |
1373 | ||
1374 | void | |
1375 | set_tdesc_pseudo_register_name (struct gdbarch *gdbarch, | |
1376 | gdbarch_register_name_ftype *pseudo_name) | |
1377 | { | |
19ba03f4 SM |
1378 | struct tdesc_arch_data *data |
1379 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
123dc839 DJ |
1380 | |
1381 | data->pseudo_register_name = pseudo_name; | |
1382 | } | |
1383 | ||
1384 | void | |
1385 | set_tdesc_pseudo_register_type (struct gdbarch *gdbarch, | |
1386 | gdbarch_register_type_ftype *pseudo_type) | |
1387 | { | |
19ba03f4 SM |
1388 | struct tdesc_arch_data *data |
1389 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
123dc839 DJ |
1390 | |
1391 | data->pseudo_register_type = pseudo_type; | |
1392 | } | |
1393 | ||
1394 | void | |
1395 | set_tdesc_pseudo_register_reggroup_p | |
1396 | (struct gdbarch *gdbarch, | |
1397 | gdbarch_register_reggroup_p_ftype *pseudo_reggroup_p) | |
1398 | { | |
19ba03f4 SM |
1399 | struct tdesc_arch_data *data |
1400 | = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); | |
123dc839 DJ |
1401 | |
1402 | data->pseudo_register_reggroup_p = pseudo_reggroup_p; | |
1403 | } | |
1404 | ||
1405 | /* Update GDBARCH to use the target description for registers. */ | |
1406 | ||
1407 | void | |
1408 | tdesc_use_registers (struct gdbarch *gdbarch, | |
7cc46491 | 1409 | const struct target_desc *target_desc, |
123dc839 DJ |
1410 | struct tdesc_arch_data *early_data) |
1411 | { | |
1412 | int num_regs = gdbarch_num_regs (gdbarch); | |
123dc839 DJ |
1413 | struct tdesc_arch_data *data; |
1414 | htab_t reg_hash; | |
1415 | ||
123dc839 DJ |
1416 | /* We can't use the description for registers if it doesn't describe |
1417 | any. This function should only be called after validating | |
1418 | registers, so the caller should know that registers are | |
1419 | included. */ | |
1420 | gdb_assert (tdesc_has_registers (target_desc)); | |
1421 | ||
19ba03f4 | 1422 | data = (struct tdesc_arch_data *) gdbarch_data (gdbarch, tdesc_data); |
ad068eab | 1423 | data->arch_regs = early_data->arch_regs; |
f0cddbef | 1424 | delete early_data; |
123dc839 DJ |
1425 | |
1426 | /* Build up a set of all registers, so that we can assign register | |
1427 | numbers where needed. The hash table expands as necessary, so | |
1428 | the initial size is arbitrary. */ | |
1429 | reg_hash = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL); | |
3eea796c | 1430 | for (const tdesc_feature_up &feature : target_desc->features) |
c9c895b9 | 1431 | for (const tdesc_reg_up ® : feature->registers) |
123dc839 | 1432 | { |
c9c895b9 | 1433 | void **slot = htab_find_slot (reg_hash, reg.get (), INSERT); |
123dc839 | 1434 | |
c9c895b9 | 1435 | *slot = reg.get (); |
cef0f868 SH |
1436 | /* Add reggroup if its new. */ |
1437 | if (!reg->group.empty ()) | |
1438 | if (reggroup_find (gdbarch, reg->group.c_str ()) == NULL) | |
1439 | reggroup_add (gdbarch, reggroup_gdbarch_new (gdbarch, | |
1440 | reg->group.c_str (), | |
1441 | USER_REGGROUP)); | |
123dc839 DJ |
1442 | } |
1443 | ||
1444 | /* Remove any registers which were assigned numbers by the | |
1445 | architecture. */ | |
f0cddbef SM |
1446 | for (const tdesc_arch_reg &arch_reg : data->arch_regs) |
1447 | if (arch_reg.reg != NULL) | |
1448 | htab_remove_elt (reg_hash, arch_reg.reg); | |
123dc839 DJ |
1449 | |
1450 | /* Assign numbers to the remaining registers and add them to the | |
f57d151a | 1451 | list of registers. The new numbers are always above gdbarch_num_regs. |
123dc839 DJ |
1452 | Iterate over the features, not the hash table, so that the order |
1453 | matches that in the target description. */ | |
1454 | ||
f0cddbef SM |
1455 | gdb_assert (data->arch_regs.size () <= num_regs); |
1456 | while (data->arch_regs.size () < num_regs) | |
1457 | data->arch_regs.emplace_back (nullptr, nullptr); | |
1458 | ||
3eea796c | 1459 | for (const tdesc_feature_up &feature : target_desc->features) |
c9c895b9 SM |
1460 | for (const tdesc_reg_up ® : feature->registers) |
1461 | if (htab_find (reg_hash, reg.get ()) != NULL) | |
123dc839 | 1462 | { |
f0cddbef | 1463 | data->arch_regs.emplace_back (reg.get (), nullptr); |
123dc839 DJ |
1464 | num_regs++; |
1465 | } | |
1466 | ||
1467 | htab_delete (reg_hash); | |
1468 | ||
1469 | /* Update the architecture. */ | |
1470 | set_gdbarch_num_regs (gdbarch, num_regs); | |
1471 | set_gdbarch_register_name (gdbarch, tdesc_register_name); | |
1472 | set_gdbarch_register_type (gdbarch, tdesc_register_type); | |
1473 | set_gdbarch_remote_register_number (gdbarch, | |
1474 | tdesc_remote_register_number); | |
1475 | set_gdbarch_register_reggroup_p (gdbarch, tdesc_register_reggroup_p); | |
1476 | } | |
1477 | \f | |
1478 | ||
f46cd62a | 1479 | /* See common/tdesc.h. */ |
f49ff000 | 1480 | |
123dc839 DJ |
1481 | void |
1482 | tdesc_create_reg (struct tdesc_feature *feature, const char *name, | |
1483 | int regnum, int save_restore, const char *group, | |
1484 | int bitsize, const char *type) | |
1485 | { | |
72ddacb7 YQ |
1486 | tdesc_reg *reg = new tdesc_reg (feature, name, regnum, save_restore, |
1487 | group, bitsize, type); | |
123dc839 | 1488 | |
c9c895b9 | 1489 | feature->registers.emplace_back (reg); |
123dc839 DJ |
1490 | } |
1491 | ||
f46cd62a | 1492 | /* See common/tdesc.h. */ |
f49ff000 | 1493 | |
ad068eab UW |
1494 | struct tdesc_type * |
1495 | tdesc_create_vector (struct tdesc_feature *feature, const char *name, | |
1496 | struct tdesc_type *field_type, int count) | |
1497 | { | |
d4a0e8b5 | 1498 | tdesc_type_vector *type = new tdesc_type_vector (name, field_type, count); |
53c934e9 | 1499 | feature->types.emplace_back (type); |
d4a0e8b5 | 1500 | |
ad068eab UW |
1501 | return type; |
1502 | } | |
1503 | ||
f46cd62a | 1504 | /* See common/tdesc.h. */ |
f49ff000 | 1505 | |
d4a0e8b5 | 1506 | tdesc_type_with_fields * |
f5dff777 DJ |
1507 | tdesc_create_struct (struct tdesc_feature *feature, const char *name) |
1508 | { | |
d4a0e8b5 SM |
1509 | tdesc_type_with_fields *type |
1510 | = new tdesc_type_with_fields (name, TDESC_TYPE_STRUCT); | |
53c934e9 | 1511 | feature->types.emplace_back (type); |
d4a0e8b5 | 1512 | |
f5dff777 DJ |
1513 | return type; |
1514 | } | |
1515 | ||
f46cd62a | 1516 | /* See common/tdesc.h. */ |
f5dff777 DJ |
1517 | |
1518 | void | |
d4a0e8b5 | 1519 | tdesc_set_struct_size (tdesc_type_with_fields *type, int size) |
f5dff777 DJ |
1520 | { |
1521 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); | |
54157a25 | 1522 | gdb_assert (size > 0); |
d4a0e8b5 | 1523 | type->size = size; |
f5dff777 DJ |
1524 | } |
1525 | ||
f46cd62a | 1526 | /* See common/tdesc.h. */ |
f49ff000 | 1527 | |
d4a0e8b5 | 1528 | tdesc_type_with_fields * |
ad068eab UW |
1529 | tdesc_create_union (struct tdesc_feature *feature, const char *name) |
1530 | { | |
d4a0e8b5 SM |
1531 | tdesc_type_with_fields *type |
1532 | = new tdesc_type_with_fields (name, TDESC_TYPE_UNION); | |
53c934e9 | 1533 | feature->types.emplace_back (type); |
d4a0e8b5 | 1534 | |
ad068eab UW |
1535 | return type; |
1536 | } | |
1537 | ||
f46cd62a | 1538 | /* See common/tdesc.h. */ |
f49ff000 | 1539 | |
d4a0e8b5 | 1540 | tdesc_type_with_fields * |
f5dff777 | 1541 | tdesc_create_flags (struct tdesc_feature *feature, const char *name, |
54157a25 | 1542 | int size) |
f5dff777 | 1543 | { |
54157a25 DE |
1544 | gdb_assert (size > 0); |
1545 | ||
d4a0e8b5 SM |
1546 | tdesc_type_with_fields *type |
1547 | = new tdesc_type_with_fields (name, TDESC_TYPE_FLAGS, size); | |
53c934e9 | 1548 | feature->types.emplace_back (type); |
d4a0e8b5 | 1549 | |
f5dff777 DJ |
1550 | return type; |
1551 | } | |
1552 | ||
d4a0e8b5 | 1553 | tdesc_type_with_fields * |
81516450 DE |
1554 | tdesc_create_enum (struct tdesc_feature *feature, const char *name, |
1555 | int size) | |
1556 | { | |
81516450 DE |
1557 | gdb_assert (size > 0); |
1558 | ||
d4a0e8b5 SM |
1559 | tdesc_type_with_fields *type |
1560 | = new tdesc_type_with_fields (name, TDESC_TYPE_ENUM, size); | |
53c934e9 | 1561 | feature->types.emplace_back (type); |
d4a0e8b5 | 1562 | |
81516450 DE |
1563 | return type; |
1564 | } | |
1565 | ||
f46cd62a | 1566 | /* See common/tdesc.h. */ |
f5dff777 | 1567 | |
ad068eab | 1568 | void |
d4a0e8b5 | 1569 | tdesc_add_field (tdesc_type_with_fields *type, const char *field_name, |
ad068eab UW |
1570 | struct tdesc_type *field_type) |
1571 | { | |
f5dff777 DJ |
1572 | gdb_assert (type->kind == TDESC_TYPE_UNION |
1573 | || type->kind == TDESC_TYPE_STRUCT); | |
ad068eab | 1574 | |
d05200d1 | 1575 | /* Initialize start and end so we know this is not a bit-field |
81516450 | 1576 | when we print-c-tdesc. */ |
d4a0e8b5 | 1577 | type->fields.emplace_back (field_name, field_type, -1, -1); |
ad068eab UW |
1578 | } |
1579 | ||
f5dff777 | 1580 | void |
d4a0e8b5 | 1581 | tdesc_add_typed_bitfield (tdesc_type_with_fields *type, const char *field_name, |
81516450 | 1582 | int start, int end, struct tdesc_type *field_type) |
f5dff777 | 1583 | { |
81516450 DE |
1584 | gdb_assert (type->kind == TDESC_TYPE_STRUCT |
1585 | || type->kind == TDESC_TYPE_FLAGS); | |
1586 | gdb_assert (start >= 0 && end >= start); | |
f5dff777 | 1587 | |
d4a0e8b5 | 1588 | type->fields.emplace_back (field_name, field_type, start, end); |
f5dff777 DJ |
1589 | } |
1590 | ||
f46cd62a | 1591 | /* See common/tdesc.h. */ |
81516450 DE |
1592 | |
1593 | void | |
d4a0e8b5 | 1594 | tdesc_add_bitfield (tdesc_type_with_fields *type, const char *field_name, |
81516450 DE |
1595 | int start, int end) |
1596 | { | |
1597 | struct tdesc_type *field_type; | |
1598 | ||
1599 | gdb_assert (start >= 0 && end >= start); | |
1600 | ||
d4a0e8b5 | 1601 | if (type->size > 4) |
81516450 DE |
1602 | field_type = tdesc_predefined_type (TDESC_TYPE_UINT64); |
1603 | else | |
1604 | field_type = tdesc_predefined_type (TDESC_TYPE_UINT32); | |
1605 | ||
1606 | tdesc_add_typed_bitfield (type, field_name, start, end, field_type); | |
1607 | } | |
1608 | ||
f46cd62a | 1609 | /* See common/tdesc.h. */ |
81516450 | 1610 | |
f5dff777 | 1611 | void |
d4a0e8b5 | 1612 | tdesc_add_flag (tdesc_type_with_fields *type, int start, |
f5dff777 DJ |
1613 | const char *flag_name) |
1614 | { | |
81516450 DE |
1615 | gdb_assert (type->kind == TDESC_TYPE_FLAGS |
1616 | || type->kind == TDESC_TYPE_STRUCT); | |
f5dff777 | 1617 | |
d4a0e8b5 SM |
1618 | type->fields.emplace_back (flag_name, |
1619 | tdesc_predefined_type (TDESC_TYPE_BOOL), | |
1620 | start, start); | |
81516450 DE |
1621 | } |
1622 | ||
1623 | void | |
d4a0e8b5 | 1624 | tdesc_add_enum_value (tdesc_type_with_fields *type, int value, |
81516450 DE |
1625 | const char *name) |
1626 | { | |
81516450 | 1627 | gdb_assert (type->kind == TDESC_TYPE_ENUM); |
d4a0e8b5 SM |
1628 | type->fields.emplace_back (name, |
1629 | tdesc_predefined_type (TDESC_TYPE_INT32), | |
1630 | value, -1); | |
f5dff777 DJ |
1631 | } |
1632 | ||
f46cd62a | 1633 | /* See common/tdesc.h. */ |
f49ff000 | 1634 | |
123dc839 | 1635 | struct tdesc_feature * |
0abe8a89 YQ |
1636 | tdesc_create_feature (struct target_desc *tdesc, const char *name, |
1637 | const char *xml) | |
123dc839 | 1638 | { |
72ddacb7 | 1639 | struct tdesc_feature *new_feature = new tdesc_feature (name); |
123dc839 | 1640 | |
3eea796c SM |
1641 | tdesc->features.emplace_back (new_feature); |
1642 | ||
123dc839 DJ |
1643 | return new_feature; |
1644 | } | |
1645 | ||
424163ea DJ |
1646 | struct target_desc * |
1647 | allocate_target_description (void) | |
1648 | { | |
b468ff4c | 1649 | return new target_desc (); |
424163ea | 1650 | } |
29709017 | 1651 | |
23181151 DJ |
1652 | static void |
1653 | free_target_description (void *arg) | |
1654 | { | |
19ba03f4 | 1655 | struct target_desc *target_desc = (struct target_desc *) arg; |
e35359c5 | 1656 | |
b468ff4c | 1657 | delete target_desc; |
23181151 DJ |
1658 | } |
1659 | ||
1660 | struct cleanup * | |
1661 | make_cleanup_free_target_description (struct target_desc *target_desc) | |
1662 | { | |
1663 | return make_cleanup (free_target_description, target_desc); | |
1664 | } | |
1665 | ||
e35359c5 UW |
1666 | void |
1667 | tdesc_add_compatible (struct target_desc *target_desc, | |
1668 | const struct bfd_arch_info *compatible) | |
1669 | { | |
e35359c5 UW |
1670 | /* If this instance of GDB is compiled without BFD support for the |
1671 | compatible architecture, simply ignore it -- we would not be able | |
1672 | to handle it anyway. */ | |
1673 | if (compatible == NULL) | |
1674 | return; | |
1675 | ||
40e2a983 | 1676 | for (const bfd_arch_info *compat : target_desc->compatible) |
e35359c5 UW |
1677 | if (compat == compatible) |
1678 | internal_error (__FILE__, __LINE__, | |
1679 | _("Attempted to add duplicate " | |
1680 | "compatible architecture \"%s\""), | |
1681 | compatible->printable_name); | |
1682 | ||
40e2a983 | 1683 | target_desc->compatible.push_back (compatible); |
e35359c5 UW |
1684 | } |
1685 | ||
29709017 DJ |
1686 | void |
1687 | set_tdesc_property (struct target_desc *target_desc, | |
1688 | const char *key, const char *value) | |
1689 | { | |
29709017 DJ |
1690 | gdb_assert (key != NULL && value != NULL); |
1691 | ||
129c10bc SM |
1692 | if (tdesc_property (target_desc, key) != NULL) |
1693 | internal_error (__FILE__, __LINE__, | |
1694 | _("Attempted to add duplicate property \"%s\""), key); | |
29709017 | 1695 | |
129c10bc | 1696 | target_desc->properties.emplace_back (key, value); |
29709017 | 1697 | } |
23181151 | 1698 | |
f46cd62a | 1699 | /* See common/tdesc.h. */ |
5f035c07 YQ |
1700 | |
1701 | void | |
1702 | set_tdesc_architecture (struct target_desc *target_desc, | |
1703 | const char *name) | |
1704 | { | |
1705 | set_tdesc_architecture (target_desc, bfd_scan_arch (name)); | |
1706 | } | |
1707 | ||
23181151 DJ |
1708 | void |
1709 | set_tdesc_architecture (struct target_desc *target_desc, | |
1710 | const struct bfd_arch_info *arch) | |
1711 | { | |
1712 | target_desc->arch = arch; | |
1713 | } | |
08d16641 | 1714 | |
f46cd62a | 1715 | /* See common/tdesc.h. */ |
5f035c07 YQ |
1716 | |
1717 | void | |
1718 | set_tdesc_osabi (struct target_desc *target_desc, const char *name) | |
1719 | { | |
1720 | set_tdesc_osabi (target_desc, osabi_from_tdesc_string (name)); | |
1721 | } | |
1722 | ||
08d16641 PA |
1723 | void |
1724 | set_tdesc_osabi (struct target_desc *target_desc, enum gdb_osabi osabi) | |
1725 | { | |
1726 | target_desc->osabi = osabi; | |
1727 | } | |
23181151 DJ |
1728 | \f |
1729 | ||
1730 | static struct cmd_list_element *tdesc_set_cmdlist, *tdesc_show_cmdlist; | |
1731 | static struct cmd_list_element *tdesc_unset_cmdlist; | |
1732 | ||
1733 | /* Helper functions for the CLI commands. */ | |
1734 | ||
1735 | static void | |
981a3fb3 | 1736 | set_tdesc_cmd (const char *args, int from_tty) |
23181151 | 1737 | { |
635c7e8a | 1738 | help_list (tdesc_set_cmdlist, "set tdesc ", all_commands, gdb_stdout); |
23181151 DJ |
1739 | } |
1740 | ||
1741 | static void | |
981a3fb3 | 1742 | show_tdesc_cmd (const char *args, int from_tty) |
23181151 DJ |
1743 | { |
1744 | cmd_show_list (tdesc_show_cmdlist, from_tty, ""); | |
1745 | } | |
1746 | ||
1747 | static void | |
981a3fb3 | 1748 | unset_tdesc_cmd (const char *args, int from_tty) |
23181151 | 1749 | { |
635c7e8a | 1750 | help_list (tdesc_unset_cmdlist, "unset tdesc ", all_commands, gdb_stdout); |
23181151 DJ |
1751 | } |
1752 | ||
1753 | static void | |
eb4c3f4a | 1754 | set_tdesc_filename_cmd (const char *args, int from_tty, |
23181151 DJ |
1755 | struct cmd_list_element *c) |
1756 | { | |
6ecd4729 PA |
1757 | xfree (target_description_filename); |
1758 | target_description_filename = xstrdup (tdesc_filename_cmd_string); | |
1759 | ||
23181151 DJ |
1760 | target_clear_description (); |
1761 | target_find_description (); | |
1762 | } | |
1763 | ||
1764 | static void | |
1765 | show_tdesc_filename_cmd (struct ui_file *file, int from_tty, | |
1766 | struct cmd_list_element *c, | |
1767 | const char *value) | |
1768 | { | |
6ecd4729 PA |
1769 | value = target_description_filename; |
1770 | ||
23181151 | 1771 | if (value != NULL && *value != '\0') |
3e43a32a | 1772 | printf_filtered (_("The target description will be read from \"%s\".\n"), |
23181151 DJ |
1773 | value); |
1774 | else | |
3e43a32a MS |
1775 | printf_filtered (_("The target description will be " |
1776 | "read from the target.\n")); | |
23181151 DJ |
1777 | } |
1778 | ||
1779 | static void | |
e100df1a | 1780 | unset_tdesc_filename_cmd (const char *args, int from_tty) |
23181151 DJ |
1781 | { |
1782 | xfree (target_description_filename); | |
1783 | target_description_filename = NULL; | |
1784 | target_clear_description (); | |
1785 | target_find_description (); | |
1786 | } | |
1787 | ||
6eb1e6a8 YQ |
1788 | /* Print target description in C. */ |
1789 | ||
1790 | class print_c_tdesc : public tdesc_element_visitor | |
1791 | { | |
1792 | public: | |
1793 | print_c_tdesc (std::string &filename_after_features) | |
1794 | : m_filename_after_features (filename_after_features) | |
1795 | { | |
1796 | const char *inp; | |
1797 | char *outp; | |
1798 | const char *filename = lbasename (m_filename_after_features.c_str ()); | |
1799 | ||
1800 | m_function = (char *) xmalloc (strlen (filename) + 1); | |
1801 | for (inp = filename, outp = m_function; *inp != '\0'; inp++) | |
1802 | if (*inp == '.') | |
1803 | break; | |
1804 | else if (*inp == '-') | |
1805 | *outp++ = '_'; | |
1806 | else | |
1807 | *outp++ = *inp; | |
1808 | *outp = '\0'; | |
1809 | ||
1810 | /* Standard boilerplate. */ | |
1811 | printf_unfiltered ("/* THIS FILE IS GENERATED. " | |
1812 | "-*- buffer-read-only: t -*- vi" | |
1813 | ":set ro:\n"); | |
6eb1e6a8 YQ |
1814 | } |
1815 | ||
1816 | ~print_c_tdesc () | |
1817 | { | |
1818 | xfree (m_function); | |
1819 | } | |
1820 | ||
1821 | void visit_pre (const target_desc *e) override | |
1822 | { | |
25aa13e5 YQ |
1823 | printf_unfiltered (" Original: %s */\n\n", |
1824 | lbasename (m_filename_after_features.c_str ())); | |
1825 | ||
6eb1e6a8 YQ |
1826 | printf_unfiltered ("#include \"defs.h\"\n"); |
1827 | printf_unfiltered ("#include \"osabi.h\"\n"); | |
1828 | printf_unfiltered ("#include \"target-descriptions.h\"\n"); | |
1829 | printf_unfiltered ("\n"); | |
1830 | ||
1831 | printf_unfiltered ("struct target_desc *tdesc_%s;\n", m_function); | |
1832 | printf_unfiltered ("static void\n"); | |
1833 | printf_unfiltered ("initialize_tdesc_%s (void)\n", m_function); | |
1834 | printf_unfiltered ("{\n"); | |
1835 | printf_unfiltered | |
1836 | (" struct target_desc *result = allocate_target_description ();\n"); | |
1837 | ||
1838 | if (tdesc_architecture (e) != NULL) | |
1839 | { | |
1840 | printf_unfiltered | |
1841 | (" set_tdesc_architecture (result, bfd_scan_arch (\"%s\"));\n", | |
1842 | tdesc_architecture (e)->printable_name); | |
1843 | printf_unfiltered ("\n"); | |
1844 | } | |
1845 | if (tdesc_osabi (e) > GDB_OSABI_UNKNOWN | |
1846 | && tdesc_osabi (e) < GDB_OSABI_INVALID) | |
1847 | { | |
1848 | printf_unfiltered | |
1849 | (" set_tdesc_osabi (result, osabi_from_tdesc_string (\"%s\"));\n", | |
1850 | gdbarch_osabi_name (tdesc_osabi (e))); | |
1851 | printf_unfiltered ("\n"); | |
1852 | } | |
1853 | ||
23a8d186 | 1854 | for (const bfd_arch_info_type *compatible : e->compatible) |
40e2a983 SM |
1855 | printf_unfiltered |
1856 | (" tdesc_add_compatible (result, bfd_scan_arch (\"%s\"));\n", | |
1857 | compatible->printable_name); | |
6eb1e6a8 | 1858 | |
40e2a983 | 1859 | if (!e->compatible.empty ()) |
6eb1e6a8 YQ |
1860 | printf_unfiltered ("\n"); |
1861 | ||
129c10bc SM |
1862 | for (const property &prop : e->properties) |
1863 | printf_unfiltered (" set_tdesc_property (result, \"%s\", \"%s\");\n", | |
1864 | prop.key.c_str (), prop.value.c_str ()); | |
1865 | ||
6eb1e6a8 YQ |
1866 | printf_unfiltered (" struct tdesc_feature *feature;\n"); |
1867 | } | |
1868 | ||
25aa13e5 | 1869 | void visit_pre (const tdesc_feature *e) override |
6eb1e6a8 YQ |
1870 | { |
1871 | printf_unfiltered ("\n feature = tdesc_create_feature (result, \"%s\");\n", | |
f65ff9f9 | 1872 | e->name.c_str ()); |
6eb1e6a8 YQ |
1873 | } |
1874 | ||
25aa13e5 YQ |
1875 | void visit_post (const tdesc_feature *e) override |
1876 | {} | |
1877 | ||
6eb1e6a8 YQ |
1878 | void visit_post (const target_desc *e) override |
1879 | { | |
1880 | printf_unfiltered ("\n tdesc_%s = result;\n", m_function); | |
1881 | printf_unfiltered ("}\n"); | |
1882 | } | |
1883 | ||
d4a0e8b5 SM |
1884 | void visit (const tdesc_type_builtin *type) override |
1885 | { | |
1886 | error (_("C output is not supported type \"%s\"."), type->name.c_str ()); | |
1887 | } | |
1888 | ||
1889 | void visit (const tdesc_type_vector *type) override | |
6eb1e6a8 | 1890 | { |
d4a0e8b5 | 1891 | if (!m_printed_element_type) |
6eb1e6a8 | 1892 | { |
d4a0e8b5 SM |
1893 | printf_unfiltered (" tdesc_type *element_type;\n"); |
1894 | m_printed_element_type = true; | |
6eb1e6a8 YQ |
1895 | } |
1896 | ||
d4a0e8b5 SM |
1897 | printf_unfiltered |
1898 | (" element_type = tdesc_named_type (feature, \"%s\");\n", | |
1899 | type->element_type->name.c_str ()); | |
1900 | printf_unfiltered | |
1901 | (" tdesc_create_vector (feature, \"%s\", element_type, %d);\n", | |
1902 | type->name.c_str (), type->count); | |
1903 | ||
1904 | printf_unfiltered ("\n"); | |
1905 | } | |
1906 | ||
1907 | void visit (const tdesc_type_with_fields *type) override | |
1908 | { | |
1909 | if (!m_printed_type_with_fields) | |
6eb1e6a8 | 1910 | { |
d4a0e8b5 SM |
1911 | printf_unfiltered (" tdesc_type_with_fields *type_with_fields;\n"); |
1912 | m_printed_type_with_fields = true; | |
1913 | } | |
1914 | ||
6eb1e6a8 YQ |
1915 | switch (type->kind) |
1916 | { | |
6eb1e6a8 YQ |
1917 | case TDESC_TYPE_STRUCT: |
1918 | case TDESC_TYPE_FLAGS: | |
1919 | if (type->kind == TDESC_TYPE_STRUCT) | |
1920 | { | |
1921 | printf_unfiltered | |
d4a0e8b5 | 1922 | (" type_with_fields = tdesc_create_struct (feature, \"%s\");\n", |
082b9140 | 1923 | type->name.c_str ()); |
d4a0e8b5 | 1924 | if (type->size != 0) |
6eb1e6a8 | 1925 | printf_unfiltered |
d4a0e8b5 | 1926 | (" tdesc_set_struct_size (type_with_fields, %d);\n", type->size); |
6eb1e6a8 YQ |
1927 | } |
1928 | else | |
1929 | { | |
1930 | printf_unfiltered | |
d4a0e8b5 SM |
1931 | (" type_with_fields = tdesc_create_flags (feature, \"%s\", %d);\n", |
1932 | type->name.c_str (), type->size); | |
6eb1e6a8 | 1933 | } |
d4a0e8b5 | 1934 | for (const tdesc_type_field &f : type->fields) |
6eb1e6a8 YQ |
1935 | { |
1936 | const char *type_name; | |
1937 | ||
d05200d1 SM |
1938 | gdb_assert (f.type != NULL); |
1939 | type_name = f.type->name.c_str (); | |
6eb1e6a8 YQ |
1940 | |
1941 | /* To minimize changes to generated files, don't emit type | |
1942 | info for fields that have defaulted types. */ | |
d05200d1 | 1943 | if (f.start != -1) |
6eb1e6a8 | 1944 | { |
d05200d1 SM |
1945 | gdb_assert (f.end != -1); |
1946 | if (f.type->kind == TDESC_TYPE_BOOL) | |
6eb1e6a8 | 1947 | { |
d05200d1 | 1948 | gdb_assert (f.start == f.end); |
6eb1e6a8 | 1949 | printf_unfiltered |
d4a0e8b5 | 1950 | (" tdesc_add_flag (type_with_fields, %d, \"%s\");\n", |
d05200d1 | 1951 | f.start, f.name.c_str ()); |
6eb1e6a8 | 1952 | } |
d4a0e8b5 SM |
1953 | else if ((type->size == 4 && f.type->kind == TDESC_TYPE_UINT32) |
1954 | || (type->size == 8 | |
d05200d1 | 1955 | && f.type->kind == TDESC_TYPE_UINT64)) |
6eb1e6a8 YQ |
1956 | { |
1957 | printf_unfiltered | |
d4a0e8b5 | 1958 | (" tdesc_add_bitfield (type_with_fields, \"%s\", %d, %d);\n", |
d05200d1 | 1959 | f.name.c_str (), f.start, f.end); |
6eb1e6a8 YQ |
1960 | } |
1961 | else | |
1962 | { | |
a8d2e585 SM |
1963 | printf_field_type_assignment |
1964 | ("tdesc_named_type (feature, \"%s\");\n", | |
6eb1e6a8 YQ |
1965 | type_name); |
1966 | printf_unfiltered | |
d4a0e8b5 | 1967 | (" tdesc_add_typed_bitfield (type_with_fields, \"%s\"," |
6eb1e6a8 | 1968 | " %d, %d, field_type);\n", |
d05200d1 | 1969 | f.name.c_str (), f.start, f.end); |
6eb1e6a8 YQ |
1970 | } |
1971 | } | |
1972 | else /* Not a bitfield. */ | |
1973 | { | |
d05200d1 | 1974 | gdb_assert (f.end == -1); |
6eb1e6a8 | 1975 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); |
a8d2e585 SM |
1976 | printf_field_type_assignment |
1977 | ("tdesc_named_type (feature, \"%s\");\n", type_name); | |
6eb1e6a8 | 1978 | printf_unfiltered |
d4a0e8b5 | 1979 | (" tdesc_add_field (type_with_fields, \"%s\", field_type);\n", |
d05200d1 | 1980 | f.name.c_str ()); |
6eb1e6a8 YQ |
1981 | } |
1982 | } | |
1983 | break; | |
1984 | case TDESC_TYPE_UNION: | |
1985 | printf_unfiltered | |
d4a0e8b5 | 1986 | (" type_with_fields = tdesc_create_union (feature, \"%s\");\n", |
082b9140 | 1987 | type->name.c_str ()); |
d4a0e8b5 | 1988 | for (const tdesc_type_field &f : type->fields) |
6eb1e6a8 | 1989 | { |
a8d2e585 SM |
1990 | printf_field_type_assignment |
1991 | ("tdesc_named_type (feature, \"%s\");\n", f.type->name.c_str ()); | |
6eb1e6a8 | 1992 | printf_unfiltered |
d4a0e8b5 | 1993 | (" tdesc_add_field (type_with_fields, \"%s\", field_type);\n", |
d05200d1 | 1994 | f.name.c_str ()); |
6eb1e6a8 YQ |
1995 | } |
1996 | break; | |
1997 | case TDESC_TYPE_ENUM: | |
1998 | printf_unfiltered | |
d4a0e8b5 SM |
1999 | (" type_with_fields = tdesc_create_enum (feature, \"%s\", %d);\n", |
2000 | type->name.c_str (), type->size); | |
2001 | for (const tdesc_type_field &f : type->fields) | |
6eb1e6a8 | 2002 | printf_unfiltered |
d4a0e8b5 | 2003 | (" tdesc_add_enum_value (type_with_fields, %d, \"%s\");\n", |
d05200d1 | 2004 | f.start, f.name.c_str ()); |
6eb1e6a8 YQ |
2005 | break; |
2006 | default: | |
082b9140 | 2007 | error (_("C output is not supported type \"%s\"."), type->name.c_str ()); |
6eb1e6a8 | 2008 | } |
d4a0e8b5 | 2009 | |
6eb1e6a8 YQ |
2010 | printf_unfiltered ("\n"); |
2011 | } | |
2012 | ||
2013 | void visit (const tdesc_reg *reg) override | |
2014 | { | |
2015 | printf_unfiltered (" tdesc_create_reg (feature, \"%s\", %ld, %d, ", | |
a8142ee1 SM |
2016 | reg->name.c_str (), reg->target_regnum, |
2017 | reg->save_restore); | |
2018 | if (!reg->group.empty ()) | |
2019 | printf_unfiltered ("\"%s\", ", reg->group.c_str ()); | |
6eb1e6a8 YQ |
2020 | else |
2021 | printf_unfiltered ("NULL, "); | |
a8142ee1 | 2022 | printf_unfiltered ("%d, \"%s\");\n", reg->bitsize, reg->type.c_str ()); |
6eb1e6a8 YQ |
2023 | } |
2024 | ||
25aa13e5 YQ |
2025 | protected: |
2026 | std::string m_filename_after_features; | |
2027 | ||
6eb1e6a8 | 2028 | private: |
a8d2e585 SM |
2029 | |
2030 | /* Print an assignment to the field_type variable. Print the declaration | |
2031 | of field_type if that has not been done yet. */ | |
6e8c24fe | 2032 | ATTRIBUTE_PRINTF (2, 3) |
a8d2e585 SM |
2033 | void printf_field_type_assignment (const char *fmt, ...) |
2034 | { | |
2035 | if (!m_printed_field_type) | |
2036 | { | |
2037 | printf_unfiltered (" tdesc_type *field_type;\n"); | |
2038 | m_printed_field_type = true; | |
2039 | } | |
2040 | ||
2041 | printf_unfiltered (" field_type = "); | |
2042 | ||
2043 | va_list args; | |
2044 | va_start (args, fmt); | |
2045 | vprintf_unfiltered (fmt, args); | |
2046 | va_end (args); | |
2047 | } | |
2048 | ||
6eb1e6a8 | 2049 | char *m_function; |
d4a0e8b5 SM |
2050 | |
2051 | /* Did we print "struct tdesc_type *element_type;" yet? */ | |
2052 | bool m_printed_element_type = false; | |
2053 | ||
2054 | /* Did we print "struct tdesc_type_with_fields *element_type;" yet? */ | |
2055 | bool m_printed_type_with_fields = false; | |
2056 | ||
2057 | /* Did we print "struct tdesc_type *field_type;" yet? */ | |
6eb1e6a8 | 2058 | bool m_printed_field_type = false; |
6eb1e6a8 YQ |
2059 | }; |
2060 | ||
25aa13e5 YQ |
2061 | /* Print target description feature in C. */ |
2062 | ||
2063 | class print_c_feature : public print_c_tdesc | |
2064 | { | |
2065 | public: | |
2066 | print_c_feature (std::string &file) | |
2067 | : print_c_tdesc (file) | |
2068 | { | |
2069 | /* Trim ".tmp". */ | |
2070 | auto const pos = m_filename_after_features.find_last_of ('.'); | |
2071 | ||
2072 | m_filename_after_features = m_filename_after_features.substr (0, pos); | |
2073 | } | |
2074 | ||
2075 | void visit_pre (const target_desc *e) override | |
2076 | { | |
2077 | printf_unfiltered (" Original: %s */\n\n", | |
2078 | lbasename (m_filename_after_features.c_str ())); | |
2079 | ||
f46cd62a | 2080 | printf_unfiltered ("#include \"common/tdesc.h\"\n"); |
25aa13e5 YQ |
2081 | printf_unfiltered ("\n"); |
2082 | } | |
2083 | ||
2084 | void visit_post (const target_desc *e) override | |
2085 | {} | |
2086 | ||
2087 | void visit_pre (const tdesc_feature *e) override | |
2088 | { | |
2089 | std::string name (m_filename_after_features); | |
2090 | ||
2091 | auto pos = name.find_first_of ('.'); | |
2092 | ||
2093 | name = name.substr (0, pos); | |
2094 | std::replace (name.begin (), name.end (), '/', '_'); | |
2095 | std::replace (name.begin (), name.end (), '-', '_'); | |
2096 | ||
2097 | printf_unfiltered ("static int\n"); | |
2098 | printf_unfiltered ("create_feature_%s ", name.c_str ()); | |
2099 | printf_unfiltered ("(struct target_desc *result, long regnum)\n"); | |
2100 | ||
2101 | printf_unfiltered ("{\n"); | |
2102 | printf_unfiltered (" struct tdesc_feature *feature;\n"); | |
0abe8a89 YQ |
2103 | |
2104 | printf_unfiltered | |
2105 | ("\n feature = tdesc_create_feature (result, \"%s\", \"%s\");\n", | |
f65ff9f9 | 2106 | e->name.c_str (), lbasename (m_filename_after_features.c_str ())); |
25aa13e5 YQ |
2107 | } |
2108 | ||
2109 | void visit_post (const tdesc_feature *e) override | |
2110 | { | |
2111 | printf_unfiltered (" return regnum;\n"); | |
2112 | printf_unfiltered ("}\n"); | |
2113 | } | |
2114 | ||
2115 | void visit (const tdesc_reg *reg) override | |
2116 | { | |
ea03d0d3 YQ |
2117 | /* Most "reg" in XML target descriptions don't have "regnum" |
2118 | attribute, so the register number is allocated sequentially. | |
2119 | In case that reg has "regnum" attribute, register number | |
2120 | should be set by that explicitly. */ | |
2121 | ||
2122 | if (reg->target_regnum < m_next_regnum) | |
2123 | { | |
2124 | /* The integrity check, it can catch some errors on register | |
2125 | number collision, like this, | |
2126 | ||
2127 | <reg name="x0" bitsize="32"/> | |
2128 | <reg name="x1" bitsize="32"/> | |
2129 | <reg name="x2" bitsize="32"/> | |
2130 | <reg name="x3" bitsize="32"/> | |
2131 | <reg name="ps" bitsize="32" regnum="3"/> | |
2132 | ||
2133 | but it also has false negatives. The target description | |
2134 | below is correct, | |
2135 | ||
2136 | <reg name="x1" bitsize="32" regnum="1"/> | |
2137 | <reg name="x3" bitsize="32" regnum="3"/> | |
2138 | <reg name="x2" bitsize="32" regnum="2"/> | |
2139 | <reg name="x4" bitsize="32" regnum="4"/> | |
2140 | ||
2141 | but it is not a good practice, so still error on this, | |
2142 | and also print the message so that it can be saved in the | |
2143 | generated c file. */ | |
2144 | ||
2145 | printf_unfiltered ("ERROR: \"regnum\" attribute %ld ", | |
2146 | reg->target_regnum); | |
2147 | printf_unfiltered ("is not the largest number (%d).\n", | |
2148 | m_next_regnum); | |
2149 | error (_("\"regnum\" attribute %ld is not the largest number (%d)."), | |
2150 | reg->target_regnum, m_next_regnum); | |
2151 | } | |
2152 | ||
2153 | if (reg->target_regnum > m_next_regnum) | |
2154 | { | |
2155 | printf_unfiltered (" regnum = %ld;\n", reg->target_regnum); | |
2156 | m_next_regnum = reg->target_regnum; | |
2157 | } | |
2158 | ||
25aa13e5 | 2159 | printf_unfiltered (" tdesc_create_reg (feature, \"%s\", regnum++, %d, ", |
a8142ee1 SM |
2160 | reg->name.c_str (), reg->save_restore); |
2161 | if (!reg->group.empty ()) | |
2162 | printf_unfiltered ("\"%s\", ", reg->group.c_str ()); | |
25aa13e5 YQ |
2163 | else |
2164 | printf_unfiltered ("NULL, "); | |
a8142ee1 | 2165 | printf_unfiltered ("%d, \"%s\");\n", reg->bitsize, reg->type.c_str ()); |
ea03d0d3 YQ |
2166 | |
2167 | m_next_regnum++; | |
25aa13e5 YQ |
2168 | } |
2169 | ||
ea03d0d3 YQ |
2170 | private: |
2171 | /* The register number to use for the next register we see. */ | |
2172 | int m_next_regnum = 0; | |
25aa13e5 YQ |
2173 | }; |
2174 | ||
81adfced | 2175 | static void |
e100df1a | 2176 | maint_print_c_tdesc_cmd (const char *args, int from_tty) |
81adfced DJ |
2177 | { |
2178 | const struct target_desc *tdesc; | |
6eb1e6a8 | 2179 | const char *filename; |
81adfced | 2180 | |
8e2141c6 YQ |
2181 | if (args == NULL) |
2182 | { | |
2183 | /* Use the global target-supplied description, not the current | |
2184 | architecture's. This lets a GDB for one architecture generate C | |
2185 | for another architecture's description, even though the gdbarch | |
2186 | initialization code will reject the new description. */ | |
2187 | tdesc = current_target_desc; | |
2188 | filename = target_description_filename; | |
2189 | } | |
2190 | else | |
2191 | { | |
2192 | /* Use the target description from the XML file. */ | |
2193 | filename = args; | |
2194 | tdesc = file_read_description_xml (filename); | |
2195 | } | |
2196 | ||
81adfced DJ |
2197 | if (tdesc == NULL) |
2198 | error (_("There is no target description to print.")); | |
2199 | ||
8e2141c6 | 2200 | if (filename == NULL) |
81adfced DJ |
2201 | error (_("The current target description did not come from an XML file.")); |
2202 | ||
6eb1e6a8 YQ |
2203 | std::string filename_after_features (filename); |
2204 | auto loc = filename_after_features.rfind ("/features/"); | |
4e2f8df6 | 2205 | |
6eb1e6a8 YQ |
2206 | if (loc != std::string::npos) |
2207 | filename_after_features = filename_after_features.substr (loc + 10); | |
4e2f8df6 | 2208 | |
25aa13e5 YQ |
2209 | /* Print c files for target features instead of target descriptions, |
2210 | because c files got from target features are more flexible than the | |
2211 | counterparts. */ | |
6c73f67f YQ |
2212 | if (startswith (filename_after_features.c_str (), "i386/32bit-") |
2213 | || startswith (filename_after_features.c_str (), "i386/64bit-") | |
506fe5f4 | 2214 | || startswith (filename_after_features.c_str (), "i386/x32-core.xml") |
49bdb7ee AH |
2215 | || startswith (filename_after_features.c_str (), "tic6x-") |
2216 | || startswith (filename_after_features.c_str (), "aarch64")) | |
25aa13e5 YQ |
2217 | { |
2218 | print_c_feature v (filename_after_features); | |
81adfced | 2219 | |
25aa13e5 YQ |
2220 | tdesc->accept (v); |
2221 | } | |
2222 | else | |
2223 | { | |
2224 | print_c_tdesc v (filename_after_features); | |
2225 | ||
2226 | tdesc->accept (v); | |
2227 | } | |
81adfced DJ |
2228 | } |
2229 | ||
27d41eac YQ |
2230 | namespace selftests { |
2231 | ||
2232 | static std::vector<std::pair<const char*, const target_desc *>> xml_tdesc; | |
2233 | ||
2234 | #if GDB_SELF_TEST | |
2235 | ||
2236 | /* See target-descritpions.h. */ | |
2237 | ||
2238 | void | |
2239 | record_xml_tdesc (const char *xml_file, const struct target_desc *tdesc) | |
2240 | { | |
2241 | xml_tdesc.emplace_back (xml_file, tdesc); | |
2242 | } | |
2243 | #endif | |
2244 | ||
2245 | } | |
2246 | ||
2247 | /* Check that the target descriptions created dynamically by | |
2248 | architecture-specific code equal the descriptions created from XML files | |
2249 | found in the specified directory DIR. */ | |
2250 | ||
2251 | static void | |
e100df1a | 2252 | maintenance_check_xml_descriptions (const char *dir, int from_tty) |
27d41eac YQ |
2253 | { |
2254 | if (dir == NULL) | |
2255 | error (_("Missing dir name")); | |
2256 | ||
2257 | gdb::unique_xmalloc_ptr<char> dir1 (tilde_expand (dir)); | |
2258 | std::string feature_dir (dir1.get ()); | |
2259 | unsigned int failed = 0; | |
2260 | ||
2261 | for (auto const &e : selftests::xml_tdesc) | |
2262 | { | |
2263 | std::string tdesc_xml = (feature_dir + SLASH_STRING + e.first); | |
2264 | const target_desc *tdesc | |
2265 | = file_read_description_xml (tdesc_xml.data ()); | |
2266 | ||
2267 | if (tdesc == NULL || *tdesc != *e.second) | |
2268 | failed++; | |
2269 | } | |
2270 | printf_filtered (_("Tested %lu XML files, %d failed\n"), | |
2271 | (long) selftests::xml_tdesc.size (), failed); | |
2272 | } | |
2273 | ||
23181151 DJ |
2274 | void |
2275 | _initialize_target_descriptions (void) | |
2276 | { | |
123dc839 DJ |
2277 | tdesc_data = gdbarch_data_register_pre_init (tdesc_data_init); |
2278 | ||
23181151 DJ |
2279 | add_prefix_cmd ("tdesc", class_maintenance, set_tdesc_cmd, _("\ |
2280 | Set target description specific variables."), | |
2281 | &tdesc_set_cmdlist, "set tdesc ", | |
2282 | 0 /* allow-unknown */, &setlist); | |
2283 | add_prefix_cmd ("tdesc", class_maintenance, show_tdesc_cmd, _("\ | |
2284 | Show target description specific variables."), | |
2285 | &tdesc_show_cmdlist, "show tdesc ", | |
2286 | 0 /* allow-unknown */, &showlist); | |
2287 | add_prefix_cmd ("tdesc", class_maintenance, unset_tdesc_cmd, _("\ | |
2288 | Unset target description specific variables."), | |
2289 | &tdesc_unset_cmdlist, "unset tdesc ", | |
2290 | 0 /* allow-unknown */, &unsetlist); | |
2291 | ||
2292 | add_setshow_filename_cmd ("filename", class_obscure, | |
6ecd4729 | 2293 | &tdesc_filename_cmd_string, |
23181151 DJ |
2294 | _("\ |
2295 | Set the file to read for an XML target description"), _("\ | |
2296 | Show the file to read for an XML target description"), _("\ | |
2297 | When set, GDB will read the target description from a local\n\ | |
2298 | file instead of querying the remote target."), | |
2299 | set_tdesc_filename_cmd, | |
2300 | show_tdesc_filename_cmd, | |
2301 | &tdesc_set_cmdlist, &tdesc_show_cmdlist); | |
2302 | ||
2303 | add_cmd ("filename", class_obscure, unset_tdesc_filename_cmd, _("\ | |
2304 | Unset the file to read for an XML target description. When unset,\n\ | |
2305 | GDB will read the description from the target."), | |
2306 | &tdesc_unset_cmdlist); | |
81adfced DJ |
2307 | |
2308 | add_cmd ("c-tdesc", class_maintenance, maint_print_c_tdesc_cmd, _("\ | |
2309 | Print the current target description as a C source file."), | |
2310 | &maintenanceprintlist); | |
27d41eac YQ |
2311 | |
2312 | cmd_list_element *cmd; | |
2313 | ||
2314 | cmd = add_cmd ("xml-descriptions", class_maintenance, | |
2315 | maintenance_check_xml_descriptions, _("\ | |
2316 | Check the target descriptions created in GDB equal the descriptions\n\ | |
2317 | created from XML files in the directory.\n\ | |
2318 | The parameter is the directory name."), | |
2319 | &maintenancechecklist); | |
2320 | set_cmd_completer (cmd, filename_completer); | |
23181151 | 2321 | } |