Commit | Line | Data |
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feaee4bd AC |
1 | /* The IGEN simulator generator for GDB, the GNU Debugger. |
2 | ||
3 | Copyright 2002 Free Software Foundation, Inc. | |
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 | |
11 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
23 | ||
c906108c SS |
24 | |
25 | ||
26 | #include <sys/types.h> | |
27 | #include <sys/stat.h> | |
28 | #include <stdio.h> | |
29 | #include <fcntl.h> | |
30 | #include <ctype.h> | |
31 | ||
32 | #include "config.h" | |
33 | #include "misc.h" | |
34 | #include "lf.h" | |
35 | #include "table.h" | |
36 | ||
37 | #ifdef HAVE_UNISTD_H | |
38 | #include <unistd.h> | |
39 | #endif | |
40 | ||
41 | #ifdef HAVE_STDLIB_H | |
42 | #include <stdlib.h> | |
43 | #endif | |
44 | ||
45 | typedef struct _open_table open_table; | |
4e0bf4c4 AC |
46 | struct _open_table |
47 | { | |
c906108c SS |
48 | size_t size; |
49 | char *buffer; | |
50 | char *pos; | |
51 | line_ref pseudo_line; | |
52 | line_ref real_line; | |
53 | open_table *parent; | |
54 | table *root; | |
55 | }; | |
4e0bf4c4 AC |
56 | struct _table |
57 | { | |
c906108c SS |
58 | open_table *current; |
59 | }; | |
60 | ||
61 | ||
62 | static line_ref * | |
4e0bf4c4 | 63 | current_line (open_table * file) |
c906108c SS |
64 | { |
65 | line_ref *entry = ZALLOC (line_ref); | |
66 | *entry = file->pseudo_line; | |
67 | return entry; | |
68 | } | |
69 | ||
70 | static table_entry * | |
4e0bf4c4 | 71 | new_table_entry (open_table * file, table_entry_type type) |
c906108c SS |
72 | { |
73 | table_entry *entry; | |
74 | entry = ZALLOC (table_entry); | |
75 | entry->file = file->root; | |
76 | entry->line = current_line (file); | |
77 | entry->type = type; | |
78 | return entry; | |
79 | } | |
80 | ||
81 | static void | |
4e0bf4c4 | 82 | set_nr_table_entry_fields (table_entry *entry, int nr_fields) |
c906108c | 83 | { |
4e0bf4c4 | 84 | entry->field = NZALLOC (char *, nr_fields + 1); |
c906108c SS |
85 | entry->nr_fields = nr_fields; |
86 | } | |
87 | ||
88 | ||
89 | void | |
90 | table_push (table *root, | |
4e0bf4c4 | 91 | line_ref *line, table_include *includes, const char *file_name) |
c906108c SS |
92 | { |
93 | FILE *ff; | |
94 | open_table *file; | |
95 | table_include dummy; | |
96 | table_include *include = &dummy; | |
97 | ||
98 | /* dummy up a search of this directory */ | |
99 | dummy.next = includes; | |
100 | dummy.dir = ""; | |
101 | ||
102 | /* create a file descriptor */ | |
103 | file = ZALLOC (open_table); | |
104 | if (file == NULL) | |
105 | { | |
106 | perror (file_name); | |
107 | exit (1); | |
108 | } | |
109 | file->root = root; | |
110 | file->parent = root->current; | |
111 | root->current = file; | |
112 | ||
113 | while (1) | |
114 | { | |
115 | /* save the file name */ | |
4e0bf4c4 AC |
116 | char *dup_name = |
117 | NZALLOC (char, strlen (include->dir) + strlen (file_name) + 2); | |
c906108c SS |
118 | if (dup_name == NULL) |
119 | { | |
120 | perror (file_name); | |
121 | exit (1); | |
122 | } | |
123 | if (include->dir[0] != '\0') | |
124 | { | |
125 | strcat (dup_name, include->dir); | |
126 | strcat (dup_name, "/"); | |
127 | } | |
128 | strcat (dup_name, file_name); | |
129 | file->real_line.file_name = dup_name; | |
130 | file->pseudo_line.file_name = dup_name; | |
131 | /* open the file */ | |
132 | ||
133 | ff = fopen (dup_name, "rb"); | |
134 | if (ff) | |
135 | break; | |
136 | /* zfree (dup_name); */ | |
137 | if (include->next == NULL) | |
138 | { | |
139 | if (line != NULL) | |
140 | error (line, "Problem opening file `%s'\n", file_name); | |
141 | perror (file_name); | |
142 | exit (1); | |
143 | } | |
144 | include = include->next; | |
4e0bf4c4 | 145 | } |
c906108c SS |
146 | |
147 | ||
148 | /* determine the size */ | |
149 | fseek (ff, 0, SEEK_END); | |
150 | file->size = ftell (ff); | |
151 | fseek (ff, 0, SEEK_SET); | |
152 | ||
153 | /* allocate this much memory */ | |
4e0bf4c4 | 154 | file->buffer = (char *) zalloc (file->size + 1); |
c906108c SS |
155 | if (file->buffer == NULL) |
156 | { | |
157 | perror (file_name); | |
158 | exit (1); | |
159 | } | |
160 | file->pos = file->buffer; | |
161 | ||
162 | /* read it all in */ | |
4e0bf4c4 AC |
163 | if (fread (file->buffer, 1, file->size, ff) < file->size) |
164 | { | |
165 | perror (file_name); | |
166 | exit (1); | |
167 | } | |
c906108c SS |
168 | file->buffer[file->size] = '\0'; |
169 | ||
170 | /* set the initial line numbering */ | |
4e0bf4c4 AC |
171 | file->real_line.line_nr = 1; /* specifies current line */ |
172 | file->pseudo_line.line_nr = 1; /* specifies current line */ | |
c906108c SS |
173 | |
174 | /* done */ | |
175 | fclose (ff); | |
176 | } | |
177 | ||
178 | table * | |
179 | table_open (const char *file_name) | |
180 | { | |
181 | table *root; | |
182 | ||
183 | /* create a file descriptor */ | |
184 | root = ZALLOC (table); | |
185 | if (root == NULL) | |
186 | { | |
187 | perror (file_name); | |
188 | exit (1); | |
189 | } | |
190 | ||
191 | table_push (root, NULL, NULL, file_name); | |
192 | return root; | |
193 | } | |
194 | ||
195 | char * | |
196 | skip_spaces (char *chp) | |
197 | { | |
198 | while (1) | |
199 | { | |
4e0bf4c4 | 200 | if (*chp == '\0' || *chp == '\n' || !isspace (*chp)) |
c906108c SS |
201 | return chp; |
202 | chp++; | |
203 | } | |
204 | } | |
205 | ||
206 | ||
207 | char * | |
208 | back_spaces (char *start, char *chp) | |
209 | { | |
210 | while (1) | |
211 | { | |
4e0bf4c4 | 212 | if (chp <= start || !isspace (chp[-1])) |
c906108c SS |
213 | return chp; |
214 | chp--; | |
215 | } | |
216 | } | |
217 | ||
218 | char * | |
219 | skip_digits (char *chp) | |
220 | { | |
221 | while (1) | |
222 | { | |
4e0bf4c4 | 223 | if (*chp == '\0' || *chp == '\n' || !isdigit (*chp)) |
c906108c SS |
224 | return chp; |
225 | chp++; | |
226 | } | |
227 | } | |
228 | ||
229 | char * | |
4e0bf4c4 | 230 | skip_to_separator (char *chp, char *separators) |
c906108c SS |
231 | { |
232 | while (1) | |
233 | { | |
234 | char *sep = separators; | |
235 | while (1) | |
236 | { | |
237 | if (*chp == *sep) | |
238 | return chp; | |
239 | if (*sep == '\0') | |
240 | break; | |
241 | sep++; | |
242 | } | |
243 | chp++; | |
244 | } | |
245 | } | |
246 | ||
247 | static char * | |
248 | skip_to_null (char *chp) | |
249 | { | |
250 | return skip_to_separator (chp, ""); | |
251 | } | |
252 | ||
253 | ||
254 | static char * | |
4e0bf4c4 | 255 | skip_to_nl (char *chp) |
c906108c SS |
256 | { |
257 | return skip_to_separator (chp, "\n"); | |
258 | } | |
259 | ||
260 | ||
261 | static void | |
4e0bf4c4 | 262 | next_line (open_table * file) |
c906108c SS |
263 | { |
264 | file->pos = skip_to_nl (file->pos); | |
265 | if (*file->pos == '0') | |
266 | error (&file->pseudo_line, "Missing <nl> at end of line\n"); | |
267 | *file->pos = '\0'; | |
268 | file->pos += 1; | |
269 | file->real_line.line_nr += 1; | |
270 | file->pseudo_line.line_nr += 1; | |
271 | } | |
272 | ||
273 | ||
274 | extern table_entry * | |
275 | table_read (table *root) | |
276 | { | |
277 | open_table *file = root->current; | |
278 | table_entry *entry = NULL; | |
4e0bf4c4 | 279 | while (1) |
c906108c SS |
280 | { |
281 | ||
282 | /* end-of-file? */ | |
283 | while (*file->pos == '\0') | |
284 | { | |
285 | if (file->parent != NULL) | |
286 | { | |
287 | file = file->parent; | |
288 | root->current = file; | |
289 | } | |
290 | else | |
291 | return NULL; | |
292 | } | |
293 | ||
294 | /* code_block? */ | |
295 | if (*file->pos == '{') | |
296 | { | |
297 | char *chp; | |
4e0bf4c4 | 298 | next_line (file); /* discard leading brace */ |
c906108c SS |
299 | entry = new_table_entry (file, table_code_entry); |
300 | chp = file->pos; | |
301 | /* determine how many lines are involved - look for <nl> "}" */ | |
302 | { | |
303 | int nr_lines = 0; | |
304 | while (*file->pos != '}') | |
305 | { | |
306 | next_line (file); | |
307 | nr_lines++; | |
308 | } | |
309 | set_nr_table_entry_fields (entry, nr_lines); | |
310 | } | |
311 | /* now enter each line */ | |
312 | { | |
313 | int line_nr; | |
314 | for (line_nr = 0; line_nr < entry->nr_fields; line_nr++) | |
315 | { | |
316 | if (strncmp (chp, " ", 2) == 0) | |
317 | entry->field[line_nr] = chp + 2; | |
318 | else | |
319 | entry->field[line_nr] = chp; | |
320 | chp = skip_to_null (chp) + 1; | |
321 | } | |
322 | /* skip trailing brace */ | |
323 | ASSERT (*file->pos == '}'); | |
324 | next_line (file); | |
325 | } | |
326 | break; | |
327 | } | |
328 | ||
329 | /* tab block? */ | |
330 | if (*file->pos == '\t') | |
331 | { | |
332 | char *chp = file->pos; | |
333 | entry = new_table_entry (file, table_code_entry); | |
334 | /* determine how many lines are involved - look for <nl> !<tab> */ | |
335 | { | |
336 | int nr_lines = 0; | |
337 | int nr_blank_lines = 0; | |
338 | while (1) | |
339 | { | |
340 | if (*file->pos == '\t') | |
341 | { | |
342 | nr_lines = nr_lines + nr_blank_lines + 1; | |
343 | nr_blank_lines = 0; | |
344 | next_line (file); | |
345 | } | |
346 | else | |
347 | { | |
348 | file->pos = skip_spaces (file->pos); | |
349 | if (*file->pos != '\n') | |
350 | break; | |
351 | nr_blank_lines++; | |
352 | next_line (file); | |
353 | } | |
354 | } | |
355 | set_nr_table_entry_fields (entry, nr_lines); | |
356 | } | |
357 | /* now enter each line */ | |
358 | { | |
359 | int line_nr; | |
360 | for (line_nr = 0; line_nr < entry->nr_fields; line_nr++) | |
361 | { | |
362 | if (*chp == '\t') | |
363 | entry->field[line_nr] = chp + 1; | |
364 | else | |
4e0bf4c4 | 365 | entry->field[line_nr] = ""; /* blank */ |
c906108c SS |
366 | chp = skip_to_null (chp) + 1; |
367 | } | |
368 | } | |
369 | break; | |
370 | } | |
371 | ||
372 | /* cpp directive? */ | |
373 | if (file->pos[0] == '#') | |
374 | { | |
375 | char *chp = skip_spaces (file->pos + 1); | |
376 | ||
377 | /* cpp line-nr directive - # <line-nr> "<file>" */ | |
378 | if (isdigit (*chp) | |
379 | && *skip_digits (chp) == ' ' | |
380 | && *skip_spaces (skip_digits (chp)) == '"') | |
381 | { | |
382 | int line_nr; | |
383 | char *file_name; | |
384 | file->pos = chp; | |
385 | /* parse the number */ | |
4e0bf4c4 | 386 | line_nr = atoi (file->pos) - 1; |
c906108c SS |
387 | /* skip to the file name */ |
388 | while (file->pos[0] != '0' | |
4e0bf4c4 | 389 | && 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 opening quote in cpp directive\n"); | |
c906108c SS |
394 | /* parse the file name */ |
395 | file->pos++; | |
396 | file_name = file->pos; | |
4e0bf4c4 | 397 | while (file->pos[0] != '"' && file->pos[0] != '\0') |
c906108c SS |
398 | file->pos++; |
399 | if (file->pos[0] != '"') | |
4e0bf4c4 AC |
400 | error (&file->real_line, |
401 | "Missing closing quote in cpp directive\n"); | |
c906108c SS |
402 | file->pos[0] = '\0'; |
403 | file->pos++; | |
404 | file->pos = skip_to_nl (file->pos); | |
405 | if (file->pos[0] != '\n') | |
4e0bf4c4 AC |
406 | error (&file->real_line, |
407 | "Missing newline in cpp directive\n"); | |
c906108c SS |
408 | file->pseudo_line.file_name = file_name; |
409 | file->pseudo_line.line_nr = line_nr; | |
410 | next_line (file); | |
411 | continue; | |
412 | } | |
413 | ||
414 | /* #define and #undef - not implemented yet */ | |
415 | ||
416 | /* Old style # comment */ | |
417 | next_line (file); | |
418 | continue; | |
419 | } | |
420 | ||
421 | /* blank line or end-of-file? */ | |
422 | file->pos = skip_spaces (file->pos); | |
423 | if (*file->pos == '\0') | |
424 | error (&file->pseudo_line, "Missing <nl> at end of file\n"); | |
425 | if (*file->pos == '\n') | |
426 | { | |
427 | next_line (file); | |
428 | continue; | |
429 | } | |
430 | ||
431 | /* comment - leading // or # - skip */ | |
432 | if ((file->pos[0] == '/' && file->pos[1] == '/') | |
433 | || (file->pos[0] == '#')) | |
434 | { | |
435 | next_line (file); | |
436 | continue; | |
437 | } | |
438 | ||
439 | /* colon field */ | |
440 | { | |
441 | char *chp = file->pos; | |
442 | entry = new_table_entry (file, table_colon_entry); | |
443 | next_line (file); | |
444 | /* figure out how many fields */ | |
445 | { | |
446 | int nr_fields = 1; | |
447 | char *tmpch = chp; | |
448 | while (1) | |
449 | { | |
450 | tmpch = skip_to_separator (tmpch, "\\:"); | |
451 | if (*tmpch == '\\') | |
452 | { | |
453 | /* eat the escaped character */ | |
454 | char *cp = tmpch; | |
455 | while (cp[1] != '\0') | |
456 | { | |
457 | cp[0] = cp[1]; | |
458 | cp++; | |
459 | } | |
460 | cp[0] = '\0'; | |
461 | tmpch++; | |
462 | } | |
463 | else if (*tmpch != ':') | |
464 | break; | |
465 | else | |
466 | { | |
467 | *tmpch = '\0'; | |
468 | tmpch++; | |
469 | nr_fields++; | |
470 | } | |
471 | } | |
472 | set_nr_table_entry_fields (entry, nr_fields); | |
473 | } | |
474 | /* now parse them */ | |
475 | { | |
476 | int field_nr; | |
477 | for (field_nr = 0; field_nr < entry->nr_fields; field_nr++) | |
478 | { | |
479 | chp = skip_spaces (chp); | |
480 | entry->field[field_nr] = chp; | |
481 | chp = skip_to_null (chp); | |
482 | *back_spaces (entry->field[field_nr], chp) = '\0'; | |
483 | chp++; | |
484 | } | |
485 | } | |
486 | break; | |
487 | } | |
488 | ||
489 | } | |
490 | ||
491 | ASSERT (entry == NULL || entry->field[entry->nr_fields] == NULL); | |
492 | return entry; | |
493 | } | |
494 | ||
495 | extern void | |
4e0bf4c4 | 496 | table_print_code (lf *file, table_entry *entry) |
c906108c SS |
497 | { |
498 | int field_nr; | |
499 | int nr = 0; | |
4e0bf4c4 | 500 | for (field_nr = 0; field_nr < entry->nr_fields; field_nr++) |
c906108c SS |
501 | { |
502 | char *chp = entry->field[field_nr]; | |
503 | int in_bit_field = 0; | |
504 | if (*chp == '#') | |
4e0bf4c4 AC |
505 | lf_indent_suppress (file); |
506 | while (*chp != '\0') | |
c906108c | 507 | { |
4e0bf4c4 | 508 | if (chp[0] == '{' && !isspace (chp[1]) && chp[1] != '\0') |
c906108c SS |
509 | { |
510 | in_bit_field = 1; | |
4e0bf4c4 | 511 | nr += lf_putchr (file, '_'); |
c906108c SS |
512 | } |
513 | else if (in_bit_field && chp[0] == ':') | |
514 | { | |
4e0bf4c4 | 515 | nr += lf_putchr (file, '_'); |
c906108c SS |
516 | } |
517 | else if (in_bit_field && *chp == '}') | |
518 | { | |
4e0bf4c4 | 519 | nr += lf_putchr (file, '_'); |
c906108c SS |
520 | in_bit_field = 0; |
521 | } | |
4e0bf4c4 | 522 | else |
c906108c | 523 | { |
4e0bf4c4 | 524 | nr += lf_putchr (file, *chp); |
c906108c SS |
525 | } |
526 | chp++; | |
527 | } | |
528 | if (in_bit_field) | |
529 | { | |
530 | line_ref line = *entry->line; | |
531 | line.line_nr += field_nr; | |
532 | error (&line, "Bit field brace miss match\n"); | |
533 | } | |
4e0bf4c4 | 534 | nr += lf_putchr (file, '\n'); |
c906108c SS |
535 | } |
536 | } | |
537 | ||
538 | ||
539 | ||
540 | void | |
4e0bf4c4 | 541 | dump_line_ref (lf *file, char *prefix, const line_ref *line, char *suffix) |
c906108c SS |
542 | { |
543 | lf_printf (file, "%s(line_ref*) 0x%lx", prefix, (long) line); | |
544 | if (line != NULL) | |
545 | { | |
546 | lf_indent (file, +1); | |
547 | lf_printf (file, "\n(line_nr %d)", line->line_nr); | |
548 | lf_printf (file, "\n(file_name %s)", line->file_name); | |
549 | lf_indent (file, -1); | |
550 | } | |
551 | lf_printf (file, "%s", suffix); | |
552 | } | |
553 | ||
554 | ||
555 | static const char * | |
556 | table_entry_type_to_str (table_entry_type type) | |
557 | { | |
558 | switch (type) | |
559 | { | |
4e0bf4c4 AC |
560 | case table_code_entry: |
561 | return "code-entry"; | |
562 | case table_colon_entry: | |
563 | return "colon-entry"; | |
c906108c SS |
564 | } |
565 | return "*invalid*"; | |
566 | } | |
567 | ||
568 | void | |
4e0bf4c4 AC |
569 | dump_table_entry (lf *file, |
570 | char *prefix, const table_entry *entry, char *suffix) | |
c906108c SS |
571 | { |
572 | lf_printf (file, "%s(table_entry*) 0x%lx", prefix, (long) entry); | |
573 | if (entry != NULL) | |
574 | { | |
575 | int field; | |
576 | lf_indent (file, +1); | |
577 | dump_line_ref (file, "\n(line ", entry->line, ")"); | |
578 | lf_printf (file, "\n(type %s)", table_entry_type_to_str (entry->type)); | |
579 | lf_printf (file, "\n(nr_fields %d)", entry->nr_fields); | |
580 | lf_printf (file, "\n(fields"); | |
581 | lf_indent (file, +1); | |
582 | for (field = 0; field < entry->nr_fields; field++) | |
583 | lf_printf (file, "\n\"%s\"", entry->field[field]); | |
584 | lf_indent (file, -1); | |
585 | lf_printf (file, ")"); | |
586 | lf_indent (file, -1); | |
587 | } | |
588 | lf_printf (file, "%s", suffix); | |
589 | } | |
590 | ||
591 | ||
592 | #ifdef MAIN | |
593 | int | |
4e0bf4c4 | 594 | main (int argc, char **argv) |
c906108c SS |
595 | { |
596 | table *t; | |
597 | table_entry *entry; | |
598 | lf *l; | |
599 | int line_nr; | |
600 | ||
601 | if (argc != 2) | |
602 | { | |
4e0bf4c4 | 603 | printf ("Usage: table <file>\n"); |
c906108c SS |
604 | exit (1); |
605 | } | |
606 | ||
607 | t = table_open (argv[1]); | |
608 | l = lf_open ("-", "stdout", lf_omit_references, lf_is_text, "tmp-table"); | |
609 | ||
610 | line_nr = 0; | |
611 | do | |
612 | { | |
613 | char line[10]; | |
614 | entry = table_read (t); | |
4e0bf4c4 | 615 | line_nr++; |
c906108c SS |
616 | sprintf (line, "(%d ", line_nr); |
617 | dump_table_entry (l, line, entry, ")\n"); | |
618 | } | |
619 | while (entry != NULL); | |
620 | ||
621 | return 0; | |
622 | } | |
623 | #endif |