1 /* The IGEN simulator generator for GDB, the GNU Debugger.
3 Copyright 2002, 2007, 2008, 2009 Free Software Foundation, Inc.
5 Contributed by Andrew Cagney.
7 This file is part of GDB.
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 3 of the License, or
12 (at your option) any later version.
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.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include <sys/types.h>
43 typedef struct _open_table open_table
;
61 current_line (open_table
* file
)
63 line_ref
*entry
= ZALLOC (line_ref
);
64 *entry
= file
->pseudo_line
;
69 new_table_entry (open_table
* file
, table_entry_type type
)
72 entry
= ZALLOC (table_entry
);
73 entry
->file
= file
->root
;
74 entry
->line
= current_line (file
);
80 set_nr_table_entry_fields (table_entry
*entry
, int nr_fields
)
82 entry
->field
= NZALLOC (char *, nr_fields
+ 1);
83 entry
->nr_fields
= nr_fields
;
88 table_push (table
*root
,
89 line_ref
*line
, table_include
*includes
, const char *file_name
)
94 table_include
*include
= &dummy
;
96 /* dummy up a search of this directory */
97 dummy
.next
= includes
;
100 /* create a file descriptor */
101 file
= ZALLOC (open_table
);
108 file
->parent
= root
->current
;
109 root
->current
= file
;
113 /* save the file name */
115 NZALLOC (char, strlen (include
->dir
) + strlen (file_name
) + 2);
116 if (dup_name
== NULL
)
121 if (include
->dir
[0] != '\0')
123 strcat (dup_name
, include
->dir
);
124 strcat (dup_name
, "/");
126 strcat (dup_name
, file_name
);
127 file
->real_line
.file_name
= dup_name
;
128 file
->pseudo_line
.file_name
= dup_name
;
131 ff
= fopen (dup_name
, "rb");
134 /* zfree (dup_name); */
135 if (include
->next
== NULL
)
138 error (line
, "Problem opening file `%s'\n", file_name
);
142 include
= include
->next
;
146 /* determine the size */
147 fseek (ff
, 0, SEEK_END
);
148 file
->size
= ftell (ff
);
149 fseek (ff
, 0, SEEK_SET
);
151 /* allocate this much memory */
152 file
->buffer
= (char *) zalloc (file
->size
+ 1);
153 if (file
->buffer
== NULL
)
158 file
->pos
= file
->buffer
;
161 if (fread (file
->buffer
, 1, file
->size
, ff
) < file
->size
)
166 file
->buffer
[file
->size
] = '\0';
168 /* set the initial line numbering */
169 file
->real_line
.line_nr
= 1; /* specifies current line */
170 file
->pseudo_line
.line_nr
= 1; /* specifies current line */
177 table_open (const char *file_name
)
181 /* create a file descriptor */
182 root
= ZALLOC (table
);
189 table_push (root
, NULL
, NULL
, file_name
);
194 skip_spaces (char *chp
)
198 if (*chp
== '\0' || *chp
== '\n' || !isspace (*chp
))
206 back_spaces (char *start
, char *chp
)
210 if (chp
<= start
|| !isspace (chp
[-1]))
217 skip_digits (char *chp
)
221 if (*chp
== '\0' || *chp
== '\n' || !isdigit (*chp
))
228 skip_to_separator (char *chp
, char *separators
)
232 char *sep
= separators
;
246 skip_to_null (char *chp
)
248 return skip_to_separator (chp
, "");
253 skip_to_nl (char *chp
)
255 return skip_to_separator (chp
, "\n");
260 next_line (open_table
* file
)
262 file
->pos
= skip_to_nl (file
->pos
);
263 if (*file
->pos
== '0')
264 error (&file
->pseudo_line
, "Missing <nl> at end of line\n");
267 file
->real_line
.line_nr
+= 1;
268 file
->pseudo_line
.line_nr
+= 1;
273 table_read (table
*root
)
275 open_table
*file
= root
->current
;
276 table_entry
*entry
= NULL
;
281 while (*file
->pos
== '\0')
283 if (file
->parent
!= NULL
)
286 root
->current
= file
;
293 if (*file
->pos
== '{')
296 next_line (file
); /* discard leading brace */
297 entry
= new_table_entry (file
, table_code_entry
);
299 /* determine how many lines are involved - look for <nl> "}" */
302 while (*file
->pos
!= '}')
307 set_nr_table_entry_fields (entry
, nr_lines
);
309 /* now enter each line */
312 for (line_nr
= 0; line_nr
< entry
->nr_fields
; line_nr
++)
314 if (strncmp (chp
, " ", 2) == 0)
315 entry
->field
[line_nr
] = chp
+ 2;
317 entry
->field
[line_nr
] = chp
;
318 chp
= skip_to_null (chp
) + 1;
320 /* skip trailing brace */
321 ASSERT (*file
->pos
== '}');
328 if (*file
->pos
== '\t')
330 char *chp
= file
->pos
;
331 entry
= new_table_entry (file
, table_code_entry
);
332 /* determine how many lines are involved - look for <nl> !<tab> */
335 int nr_blank_lines
= 0;
338 if (*file
->pos
== '\t')
340 nr_lines
= nr_lines
+ nr_blank_lines
+ 1;
346 file
->pos
= skip_spaces (file
->pos
);
347 if (*file
->pos
!= '\n')
353 set_nr_table_entry_fields (entry
, nr_lines
);
355 /* now enter each line */
358 for (line_nr
= 0; line_nr
< entry
->nr_fields
; line_nr
++)
361 entry
->field
[line_nr
] = chp
+ 1;
363 entry
->field
[line_nr
] = ""; /* blank */
364 chp
= skip_to_null (chp
) + 1;
371 if (file
->pos
[0] == '#')
373 char *chp
= skip_spaces (file
->pos
+ 1);
375 /* cpp line-nr directive - # <line-nr> "<file>" */
377 && *skip_digits (chp
) == ' '
378 && *skip_spaces (skip_digits (chp
)) == '"')
383 /* parse the number */
384 line_nr
= atoi (file
->pos
) - 1;
385 /* skip to the file name */
386 while (file
->pos
[0] != '0'
387 && file
->pos
[0] != '"' && file
->pos
[0] != '\0')
389 if (file
->pos
[0] != '"')
390 error (&file
->real_line
,
391 "Missing opening quote in cpp directive\n");
392 /* parse the file name */
394 file_name
= file
->pos
;
395 while (file
->pos
[0] != '"' && file
->pos
[0] != '\0')
397 if (file
->pos
[0] != '"')
398 error (&file
->real_line
,
399 "Missing closing quote in cpp directive\n");
402 file
->pos
= skip_to_nl (file
->pos
);
403 if (file
->pos
[0] != '\n')
404 error (&file
->real_line
,
405 "Missing newline in cpp directive\n");
406 file
->pseudo_line
.file_name
= file_name
;
407 file
->pseudo_line
.line_nr
= line_nr
;
412 /* #define and #undef - not implemented yet */
414 /* Old style # comment */
419 /* blank line or end-of-file? */
420 file
->pos
= skip_spaces (file
->pos
);
421 if (*file
->pos
== '\0')
422 error (&file
->pseudo_line
, "Missing <nl> at end of file\n");
423 if (*file
->pos
== '\n')
429 /* comment - leading // or # - skip */
430 if ((file
->pos
[0] == '/' && file
->pos
[1] == '/')
431 || (file
->pos
[0] == '#'))
439 char *chp
= file
->pos
;
440 entry
= new_table_entry (file
, table_colon_entry
);
442 /* figure out how many fields */
448 tmpch
= skip_to_separator (tmpch
, "\\:");
451 /* eat the escaped character */
453 while (cp
[1] != '\0')
461 else if (*tmpch
!= ':')
470 set_nr_table_entry_fields (entry
, nr_fields
);
475 for (field_nr
= 0; field_nr
< entry
->nr_fields
; field_nr
++)
477 chp
= skip_spaces (chp
);
478 entry
->field
[field_nr
] = chp
;
479 chp
= skip_to_null (chp
);
480 *back_spaces (entry
->field
[field_nr
], chp
) = '\0';
489 ASSERT (entry
== NULL
|| entry
->field
[entry
->nr_fields
] == NULL
);
494 table_print_code (lf
*file
, table_entry
*entry
)
498 for (field_nr
= 0; field_nr
< entry
->nr_fields
; field_nr
++)
500 char *chp
= entry
->field
[field_nr
];
501 int in_bit_field
= 0;
503 lf_indent_suppress (file
);
506 if (chp
[0] == '{' && !isspace (chp
[1]) && chp
[1] != '\0')
509 nr
+= lf_putchr (file
, '_');
511 else if (in_bit_field
&& chp
[0] == ':')
513 nr
+= lf_putchr (file
, '_');
515 else if (in_bit_field
&& *chp
== '}')
517 nr
+= lf_putchr (file
, '_');
522 nr
+= lf_putchr (file
, *chp
);
528 line_ref line
= *entry
->line
;
529 line
.line_nr
+= field_nr
;
530 error (&line
, "Bit field brace miss match\n");
532 nr
+= lf_putchr (file
, '\n');
539 dump_line_ref (lf
*file
, char *prefix
, const line_ref
*line
, char *suffix
)
541 lf_printf (file
, "%s(line_ref*) 0x%lx", prefix
, (long) line
);
544 lf_indent (file
, +1);
545 lf_printf (file
, "\n(line_nr %d)", line
->line_nr
);
546 lf_printf (file
, "\n(file_name %s)", line
->file_name
);
547 lf_indent (file
, -1);
549 lf_printf (file
, "%s", suffix
);
554 table_entry_type_to_str (table_entry_type type
)
558 case table_code_entry
:
560 case table_colon_entry
:
561 return "colon-entry";
567 dump_table_entry (lf
*file
,
568 char *prefix
, const table_entry
*entry
, char *suffix
)
570 lf_printf (file
, "%s(table_entry*) 0x%lx", prefix
, (long) entry
);
574 lf_indent (file
, +1);
575 dump_line_ref (file
, "\n(line ", entry
->line
, ")");
576 lf_printf (file
, "\n(type %s)", table_entry_type_to_str (entry
->type
));
577 lf_printf (file
, "\n(nr_fields %d)", entry
->nr_fields
);
578 lf_printf (file
, "\n(fields");
579 lf_indent (file
, +1);
580 for (field
= 0; field
< entry
->nr_fields
; field
++)
581 lf_printf (file
, "\n\"%s\"", entry
->field
[field
]);
582 lf_indent (file
, -1);
583 lf_printf (file
, ")");
584 lf_indent (file
, -1);
586 lf_printf (file
, "%s", suffix
);
592 main (int argc
, char **argv
)
601 printf ("Usage: table <file>\n");
605 t
= table_open (argv
[1]);
606 l
= lf_open ("-", "stdout", lf_omit_references
, lf_is_text
, "tmp-table");
612 entry
= table_read (t
);
614 sprintf (line
, "(%d ", line_nr
);
615 dump_table_entry (l
, line
, entry
, ")\n");
617 while (entry
!= NULL
);
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