Commit | Line | Data |
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feaee4bd AC |
1 | /* The IGEN simulator generator for GDB, the GNU Debugger. |
2 | ||
3666a048 | 3 | Copyright 2002-2021 Free Software Foundation, Inc. |
feaee4bd AC |
4 | |
5 | Contributed by Andrew Cagney. | |
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 | |
4744ac1b | 11 | the Free Software Foundation; either version 3 of the License, or |
feaee4bd AC |
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 | |
4744ac1b | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
feaee4bd | 21 | |
c906108c SS |
22 | |
23 | ||
24 | #include <sys/types.h> | |
25 | #include <sys/stat.h> | |
26 | #include <stdio.h> | |
27 | #include <fcntl.h> | |
28 | #include <ctype.h> | |
29 | ||
c906108c SS |
30 | #include "misc.h" |
31 | #include "lf.h" | |
32 | #include "table.h" | |
33 | ||
c906108c | 34 | #include <unistd.h> |
c906108c | 35 | #include <stdlib.h> |
c906108c SS |
36 | |
37 | typedef struct _open_table open_table; | |
4e0bf4c4 AC |
38 | struct _open_table |
39 | { | |
c906108c SS |
40 | size_t size; |
41 | char *buffer; | |
42 | char *pos; | |
43 | line_ref pseudo_line; | |
44 | line_ref real_line; | |
45 | open_table *parent; | |
46 | table *root; | |
47 | }; | |
4e0bf4c4 AC |
48 | struct _table |
49 | { | |
c906108c SS |
50 | open_table *current; |
51 | }; | |
52 | ||
53 | ||
54 | static line_ref * | |
4e0bf4c4 | 55 | current_line (open_table * file) |
c906108c SS |
56 | { |
57 | line_ref *entry = ZALLOC (line_ref); | |
58 | *entry = file->pseudo_line; | |
59 | return entry; | |
60 | } | |
61 | ||
62 | static table_entry * | |
4e0bf4c4 | 63 | new_table_entry (open_table * file, table_entry_type type) |
c906108c SS |
64 | { |
65 | table_entry *entry; | |
66 | entry = ZALLOC (table_entry); | |
67 | entry->file = file->root; | |
68 | entry->line = current_line (file); | |
69 | entry->type = type; | |
70 | return entry; | |
71 | } | |
72 | ||
73 | static void | |
4e0bf4c4 | 74 | set_nr_table_entry_fields (table_entry *entry, int nr_fields) |
c906108c | 75 | { |
4e0bf4c4 | 76 | entry->field = NZALLOC (char *, nr_fields + 1); |
c906108c SS |
77 | entry->nr_fields = nr_fields; |
78 | } | |
79 | ||
80 | ||
81 | void | |
82 | table_push (table *root, | |
4e0bf4c4 | 83 | line_ref *line, table_include *includes, const char *file_name) |
c906108c SS |
84 | { |
85 | FILE *ff; | |
86 | open_table *file; | |
87 | table_include dummy; | |
88 | table_include *include = &dummy; | |
89 | ||
90 | /* dummy up a search of this directory */ | |
91 | dummy.next = includes; | |
92 | dummy.dir = ""; | |
93 | ||
94 | /* create a file descriptor */ | |
95 | file = ZALLOC (open_table); | |
96 | if (file == NULL) | |
97 | { | |
98 | perror (file_name); | |
99 | exit (1); | |
100 | } | |
101 | file->root = root; | |
102 | file->parent = root->current; | |
103 | root->current = file; | |
104 | ||
105 | while (1) | |
106 | { | |
107 | /* save the file name */ | |
4e0bf4c4 AC |
108 | char *dup_name = |
109 | NZALLOC (char, strlen (include->dir) + strlen (file_name) + 2); | |
c906108c SS |
110 | if (dup_name == NULL) |
111 | { | |
112 | perror (file_name); | |
113 | exit (1); | |
114 | } | |
115 | if (include->dir[0] != '\0') | |
116 | { | |
117 | strcat (dup_name, include->dir); | |
118 | strcat (dup_name, "/"); | |
119 | } | |
120 | strcat (dup_name, file_name); | |
121 | file->real_line.file_name = dup_name; | |
122 | file->pseudo_line.file_name = dup_name; | |
123 | /* open the file */ | |
124 | ||
125 | ff = fopen (dup_name, "rb"); | |
126 | if (ff) | |
127 | break; | |
d79fe0d6 | 128 | /* free (dup_name); */ |
c906108c SS |
129 | if (include->next == NULL) |
130 | { | |
131 | if (line != NULL) | |
132 | error (line, "Problem opening file `%s'\n", file_name); | |
133 | perror (file_name); | |
134 | exit (1); | |
135 | } | |
136 | include = include->next; | |
4e0bf4c4 | 137 | } |
c906108c SS |
138 | |
139 | ||
140 | /* determine the size */ | |
141 | fseek (ff, 0, SEEK_END); | |
142 | file->size = ftell (ff); | |
143 | fseek (ff, 0, SEEK_SET); | |
144 | ||
145 | /* allocate this much memory */ | |
4e0bf4c4 | 146 | file->buffer = (char *) zalloc (file->size + 1); |
c906108c SS |
147 | if (file->buffer == NULL) |
148 | { | |
149 | perror (file_name); | |
150 | exit (1); | |
151 | } | |
152 | file->pos = file->buffer; | |
153 | ||
154 | /* read it all in */ | |
4e0bf4c4 AC |
155 | if (fread (file->buffer, 1, file->size, ff) < file->size) |
156 | { | |
157 | perror (file_name); | |
158 | exit (1); | |
159 | } | |
c906108c SS |
160 | file->buffer[file->size] = '\0'; |
161 | ||
162 | /* set the initial line numbering */ | |
4e0bf4c4 AC |
163 | file->real_line.line_nr = 1; /* specifies current line */ |
164 | file->pseudo_line.line_nr = 1; /* specifies current line */ | |
c906108c SS |
165 | |
166 | /* done */ | |
167 | fclose (ff); | |
168 | } | |
169 | ||
170 | table * | |
171 | table_open (const char *file_name) | |
172 | { | |
173 | table *root; | |
174 | ||
175 | /* create a file descriptor */ | |
176 | root = ZALLOC (table); | |
177 | if (root == NULL) | |
178 | { | |
179 | perror (file_name); | |
180 | exit (1); | |
181 | } | |
182 | ||
183 | table_push (root, NULL, NULL, file_name); | |
184 | return root; | |
185 | } | |
186 | ||
187 | char * | |
188 | skip_spaces (char *chp) | |
189 | { | |
190 | while (1) | |
191 | { | |
4e0bf4c4 | 192 | if (*chp == '\0' || *chp == '\n' || !isspace (*chp)) |
c906108c SS |
193 | return chp; |
194 | chp++; | |
195 | } | |
196 | } | |
197 | ||
198 | ||
199 | char * | |
200 | back_spaces (char *start, char *chp) | |
201 | { | |
202 | while (1) | |
203 | { | |
4e0bf4c4 | 204 | if (chp <= start || !isspace (chp[-1])) |
c906108c SS |
205 | return chp; |
206 | chp--; | |
207 | } | |
208 | } | |
209 | ||
210 | char * | |
211 | skip_digits (char *chp) | |
212 | { | |
213 | while (1) | |
214 | { | |
4e0bf4c4 | 215 | if (*chp == '\0' || *chp == '\n' || !isdigit (*chp)) |
c906108c SS |
216 | return chp; |
217 | chp++; | |
218 | } | |
219 | } | |
220 | ||
221 | char * | |
4e0bf4c4 | 222 | skip_to_separator (char *chp, char *separators) |
c906108c SS |
223 | { |
224 | while (1) | |
225 | { | |
226 | char *sep = separators; | |
227 | while (1) | |
228 | { | |
229 | if (*chp == *sep) | |
230 | return chp; | |
231 | if (*sep == '\0') | |
232 | break; | |
233 | sep++; | |
234 | } | |
235 | chp++; | |
236 | } | |
237 | } | |
238 | ||
239 | static char * | |
240 | skip_to_null (char *chp) | |
241 | { | |
242 | return skip_to_separator (chp, ""); | |
243 | } | |
244 | ||
245 | ||
246 | static char * | |
4e0bf4c4 | 247 | skip_to_nl (char *chp) |
c906108c SS |
248 | { |
249 | return skip_to_separator (chp, "\n"); | |
250 | } | |
251 | ||
252 | ||
253 | static void | |
4e0bf4c4 | 254 | next_line (open_table * file) |
c906108c SS |
255 | { |
256 | file->pos = skip_to_nl (file->pos); | |
257 | if (*file->pos == '0') | |
258 | error (&file->pseudo_line, "Missing <nl> at end of line\n"); | |
259 | *file->pos = '\0'; | |
260 | file->pos += 1; | |
261 | file->real_line.line_nr += 1; | |
262 | file->pseudo_line.line_nr += 1; | |
263 | } | |
264 | ||
265 | ||
266 | extern table_entry * | |
267 | table_read (table *root) | |
268 | { | |
269 | open_table *file = root->current; | |
270 | table_entry *entry = NULL; | |
4e0bf4c4 | 271 | while (1) |
c906108c SS |
272 | { |
273 | ||
274 | /* end-of-file? */ | |
275 | while (*file->pos == '\0') | |
276 | { | |
277 | if (file->parent != NULL) | |
278 | { | |
279 | file = file->parent; | |
280 | root->current = file; | |
281 | } | |
282 | else | |
283 | return NULL; | |
284 | } | |
285 | ||
286 | /* code_block? */ | |
287 | if (*file->pos == '{') | |
288 | { | |
289 | char *chp; | |
4e0bf4c4 | 290 | next_line (file); /* discard leading brace */ |
c906108c SS |
291 | entry = new_table_entry (file, table_code_entry); |
292 | chp = file->pos; | |
293 | /* determine how many lines are involved - look for <nl> "}" */ | |
294 | { | |
295 | int nr_lines = 0; | |
296 | while (*file->pos != '}') | |
297 | { | |
298 | next_line (file); | |
299 | nr_lines++; | |
300 | } | |
301 | set_nr_table_entry_fields (entry, nr_lines); | |
302 | } | |
303 | /* now enter each line */ | |
304 | { | |
305 | int line_nr; | |
306 | for (line_nr = 0; line_nr < entry->nr_fields; line_nr++) | |
307 | { | |
308 | if (strncmp (chp, " ", 2) == 0) | |
309 | entry->field[line_nr] = chp + 2; | |
310 | else | |
311 | entry->field[line_nr] = chp; | |
312 | chp = skip_to_null (chp) + 1; | |
313 | } | |
314 | /* skip trailing brace */ | |
315 | ASSERT (*file->pos == '}'); | |
316 | next_line (file); | |
317 | } | |
318 | break; | |
319 | } | |
320 | ||
321 | /* tab block? */ | |
322 | if (*file->pos == '\t') | |
323 | { | |
324 | char *chp = file->pos; | |
325 | entry = new_table_entry (file, table_code_entry); | |
326 | /* determine how many lines are involved - look for <nl> !<tab> */ | |
327 | { | |
328 | int nr_lines = 0; | |
329 | int nr_blank_lines = 0; | |
330 | while (1) | |
331 | { | |
332 | if (*file->pos == '\t') | |
333 | { | |
334 | nr_lines = nr_lines + nr_blank_lines + 1; | |
335 | nr_blank_lines = 0; | |
336 | next_line (file); | |
337 | } | |
338 | else | |
339 | { | |
340 | file->pos = skip_spaces (file->pos); | |
341 | if (*file->pos != '\n') | |
342 | break; | |
343 | nr_blank_lines++; | |
344 | next_line (file); | |
345 | } | |
346 | } | |
347 | set_nr_table_entry_fields (entry, nr_lines); | |
348 | } | |
349 | /* now enter each line */ | |
350 | { | |
351 | int line_nr; | |
352 | for (line_nr = 0; line_nr < entry->nr_fields; line_nr++) | |
353 | { | |
354 | if (*chp == '\t') | |
355 | entry->field[line_nr] = chp + 1; | |
356 | else | |
4e0bf4c4 | 357 | entry->field[line_nr] = ""; /* blank */ |
c906108c SS |
358 | chp = skip_to_null (chp) + 1; |
359 | } | |
360 | } | |
361 | break; | |
362 | } | |
363 | ||
364 | /* cpp directive? */ | |
365 | if (file->pos[0] == '#') | |
366 | { | |
367 | char *chp = skip_spaces (file->pos + 1); | |
368 | ||
369 | /* cpp line-nr directive - # <line-nr> "<file>" */ | |
370 | if (isdigit (*chp) | |
371 | && *skip_digits (chp) == ' ' | |
372 | && *skip_spaces (skip_digits (chp)) == '"') | |
373 | { | |
374 | int line_nr; | |
375 | char *file_name; | |
376 | file->pos = chp; | |
377 | /* parse the number */ | |
4e0bf4c4 | 378 | line_nr = atoi (file->pos) - 1; |
c906108c SS |
379 | /* skip to the file name */ |
380 | while (file->pos[0] != '0' | |
4e0bf4c4 | 381 | && file->pos[0] != '"' && file->pos[0] != '\0') |
c906108c SS |
382 | file->pos++; |
383 | if (file->pos[0] != '"') | |
4e0bf4c4 AC |
384 | error (&file->real_line, |
385 | "Missing opening quote in cpp directive\n"); | |
c906108c SS |
386 | /* parse the file name */ |
387 | file->pos++; | |
388 | file_name = file->pos; | |
4e0bf4c4 | 389 | while (file->pos[0] != '"' && file->pos[0] != '\0') |
c906108c SS |
390 | file->pos++; |
391 | if (file->pos[0] != '"') | |
4e0bf4c4 AC |
392 | error (&file->real_line, |
393 | "Missing closing quote in cpp directive\n"); | |
c906108c SS |
394 | file->pos[0] = '\0'; |
395 | file->pos++; | |
396 | file->pos = skip_to_nl (file->pos); | |
397 | if (file->pos[0] != '\n') | |
4e0bf4c4 AC |
398 | error (&file->real_line, |
399 | "Missing newline in cpp directive\n"); | |
c906108c SS |
400 | file->pseudo_line.file_name = file_name; |
401 | file->pseudo_line.line_nr = line_nr; | |
402 | next_line (file); | |
403 | continue; | |
404 | } | |
405 | ||
406 | /* #define and #undef - not implemented yet */ | |
407 | ||
408 | /* Old style # comment */ | |
409 | next_line (file); | |
410 | continue; | |
411 | } | |
412 | ||
413 | /* blank line or end-of-file? */ | |
414 | file->pos = skip_spaces (file->pos); | |
415 | if (*file->pos == '\0') | |
416 | error (&file->pseudo_line, "Missing <nl> at end of file\n"); | |
417 | if (*file->pos == '\n') | |
418 | { | |
419 | next_line (file); | |
420 | continue; | |
421 | } | |
422 | ||
423 | /* comment - leading // or # - skip */ | |
424 | if ((file->pos[0] == '/' && file->pos[1] == '/') | |
425 | || (file->pos[0] == '#')) | |
426 | { | |
427 | next_line (file); | |
428 | continue; | |
429 | } | |
430 | ||
431 | /* colon field */ | |
432 | { | |
433 | char *chp = file->pos; | |
434 | entry = new_table_entry (file, table_colon_entry); | |
435 | next_line (file); | |
436 | /* figure out how many fields */ | |
437 | { | |
438 | int nr_fields = 1; | |
439 | char *tmpch = chp; | |
440 | while (1) | |
441 | { | |
442 | tmpch = skip_to_separator (tmpch, "\\:"); | |
443 | if (*tmpch == '\\') | |
444 | { | |
445 | /* eat the escaped character */ | |
446 | char *cp = tmpch; | |
447 | while (cp[1] != '\0') | |
448 | { | |
449 | cp[0] = cp[1]; | |
450 | cp++; | |
451 | } | |
452 | cp[0] = '\0'; | |
453 | tmpch++; | |
454 | } | |
455 | else if (*tmpch != ':') | |
456 | break; | |
457 | else | |
458 | { | |
459 | *tmpch = '\0'; | |
460 | tmpch++; | |
461 | nr_fields++; | |
462 | } | |
463 | } | |
464 | set_nr_table_entry_fields (entry, nr_fields); | |
465 | } | |
466 | /* now parse them */ | |
467 | { | |
468 | int field_nr; | |
469 | for (field_nr = 0; field_nr < entry->nr_fields; field_nr++) | |
470 | { | |
471 | chp = skip_spaces (chp); | |
472 | entry->field[field_nr] = chp; | |
473 | chp = skip_to_null (chp); | |
474 | *back_spaces (entry->field[field_nr], chp) = '\0'; | |
475 | chp++; | |
476 | } | |
477 | } | |
478 | break; | |
479 | } | |
480 | ||
481 | } | |
482 | ||
483 | ASSERT (entry == NULL || entry->field[entry->nr_fields] == NULL); | |
484 | return entry; | |
485 | } | |
486 | ||
487 | extern void | |
4e0bf4c4 | 488 | table_print_code (lf *file, table_entry *entry) |
c906108c SS |
489 | { |
490 | int field_nr; | |
491 | int nr = 0; | |
4e0bf4c4 | 492 | for (field_nr = 0; field_nr < entry->nr_fields; field_nr++) |
c906108c SS |
493 | { |
494 | char *chp = entry->field[field_nr]; | |
495 | int in_bit_field = 0; | |
496 | if (*chp == '#') | |
4e0bf4c4 AC |
497 | lf_indent_suppress (file); |
498 | while (*chp != '\0') | |
c906108c | 499 | { |
4e0bf4c4 | 500 | if (chp[0] == '{' && !isspace (chp[1]) && chp[1] != '\0') |
c906108c SS |
501 | { |
502 | in_bit_field = 1; | |
4e0bf4c4 | 503 | nr += lf_putchr (file, '_'); |
c906108c SS |
504 | } |
505 | else if (in_bit_field && chp[0] == ':') | |
506 | { | |
4e0bf4c4 | 507 | nr += lf_putchr (file, '_'); |
c906108c SS |
508 | } |
509 | else if (in_bit_field && *chp == '}') | |
510 | { | |
4e0bf4c4 | 511 | nr += lf_putchr (file, '_'); |
c906108c SS |
512 | in_bit_field = 0; |
513 | } | |
4e0bf4c4 | 514 | else |
c906108c | 515 | { |
4e0bf4c4 | 516 | nr += lf_putchr (file, *chp); |
c906108c SS |
517 | } |
518 | chp++; | |
519 | } | |
520 | if (in_bit_field) | |
521 | { | |
522 | line_ref line = *entry->line; | |
523 | line.line_nr += field_nr; | |
524 | error (&line, "Bit field brace miss match\n"); | |
525 | } | |
4e0bf4c4 | 526 | nr += lf_putchr (file, '\n'); |
c906108c SS |
527 | } |
528 | } | |
529 | ||
530 | ||
531 | ||
532 | void | |
4e0bf4c4 | 533 | dump_line_ref (lf *file, char *prefix, const line_ref *line, char *suffix) |
c906108c SS |
534 | { |
535 | lf_printf (file, "%s(line_ref*) 0x%lx", prefix, (long) line); | |
536 | if (line != NULL) | |
537 | { | |
538 | lf_indent (file, +1); | |
539 | lf_printf (file, "\n(line_nr %d)", line->line_nr); | |
540 | lf_printf (file, "\n(file_name %s)", line->file_name); | |
541 | lf_indent (file, -1); | |
542 | } | |
543 | lf_printf (file, "%s", suffix); | |
544 | } | |
545 | ||
546 | ||
547 | static const char * | |
548 | table_entry_type_to_str (table_entry_type type) | |
549 | { | |
550 | switch (type) | |
551 | { | |
4e0bf4c4 AC |
552 | case table_code_entry: |
553 | return "code-entry"; | |
554 | case table_colon_entry: | |
555 | return "colon-entry"; | |
c906108c SS |
556 | } |
557 | return "*invalid*"; | |
558 | } | |
559 | ||
560 | void | |
4e0bf4c4 AC |
561 | dump_table_entry (lf *file, |
562 | char *prefix, const table_entry *entry, char *suffix) | |
c906108c SS |
563 | { |
564 | lf_printf (file, "%s(table_entry*) 0x%lx", prefix, (long) entry); | |
565 | if (entry != NULL) | |
566 | { | |
567 | int field; | |
568 | lf_indent (file, +1); | |
569 | dump_line_ref (file, "\n(line ", entry->line, ")"); | |
570 | lf_printf (file, "\n(type %s)", table_entry_type_to_str (entry->type)); | |
571 | lf_printf (file, "\n(nr_fields %d)", entry->nr_fields); | |
572 | lf_printf (file, "\n(fields"); | |
573 | lf_indent (file, +1); | |
574 | for (field = 0; field < entry->nr_fields; field++) | |
575 | lf_printf (file, "\n\"%s\"", entry->field[field]); | |
576 | lf_indent (file, -1); | |
577 | lf_printf (file, ")"); | |
578 | lf_indent (file, -1); | |
579 | } | |
580 | lf_printf (file, "%s", suffix); | |
581 | } | |
582 | ||
583 | ||
584 | #ifdef MAIN | |
585 | int | |
4e0bf4c4 | 586 | main (int argc, char **argv) |
c906108c SS |
587 | { |
588 | table *t; | |
589 | table_entry *entry; | |
590 | lf *l; | |
591 | int line_nr; | |
592 | ||
593 | if (argc != 2) | |
594 | { | |
4e0bf4c4 | 595 | printf ("Usage: table <file>\n"); |
c906108c SS |
596 | exit (1); |
597 | } | |
598 | ||
599 | t = table_open (argv[1]); | |
600 | l = lf_open ("-", "stdout", lf_omit_references, lf_is_text, "tmp-table"); | |
601 | ||
602 | line_nr = 0; | |
603 | do | |
604 | { | |
605 | char line[10]; | |
606 | entry = table_read (t); | |
4e0bf4c4 | 607 | line_nr++; |
c906108c SS |
608 | sprintf (line, "(%d ", line_nr); |
609 | dump_table_entry (l, line, entry, ")\n"); | |
610 | } | |
611 | while (entry != NULL); | |
612 | ||
613 | return 0; | |
614 | } | |
615 | #endif |