1 /* The IGEN simulator generator for GDB, the GNU Debugger.
3 Copyright 2002 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 2 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, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
26 #include <sys/types.h>
45 typedef struct _open_table open_table
;
63 current_line (open_table
* file
)
65 line_ref
*entry
= ZALLOC (line_ref
);
66 *entry
= file
->pseudo_line
;
71 new_table_entry (open_table
* file
, table_entry_type type
)
74 entry
= ZALLOC (table_entry
);
75 entry
->file
= file
->root
;
76 entry
->line
= current_line (file
);
82 set_nr_table_entry_fields (table_entry
*entry
, int nr_fields
)
84 entry
->field
= NZALLOC (char *, nr_fields
+ 1);
85 entry
->nr_fields
= nr_fields
;
90 table_push (table
*root
,
91 line_ref
*line
, table_include
*includes
, const char *file_name
)
96 table_include
*include
= &dummy
;
98 /* dummy up a search of this directory */
99 dummy
.next
= includes
;
102 /* create a file descriptor */
103 file
= ZALLOC (open_table
);
110 file
->parent
= root
->current
;
111 root
->current
= file
;
115 /* save the file name */
117 NZALLOC (char, strlen (include
->dir
) + strlen (file_name
) + 2);
118 if (dup_name
== NULL
)
123 if (include
->dir
[0] != '\0')
125 strcat (dup_name
, include
->dir
);
126 strcat (dup_name
, "/");
128 strcat (dup_name
, file_name
);
129 file
->real_line
.file_name
= dup_name
;
130 file
->pseudo_line
.file_name
= dup_name
;
133 ff
= fopen (dup_name
, "rb");
136 /* zfree (dup_name); */
137 if (include
->next
== NULL
)
140 error (line
, "Problem opening file `%s'\n", file_name
);
144 include
= include
->next
;
148 /* determine the size */
149 fseek (ff
, 0, SEEK_END
);
150 file
->size
= ftell (ff
);
151 fseek (ff
, 0, SEEK_SET
);
153 /* allocate this much memory */
154 file
->buffer
= (char *) zalloc (file
->size
+ 1);
155 if (file
->buffer
== NULL
)
160 file
->pos
= file
->buffer
;
163 if (fread (file
->buffer
, 1, file
->size
, ff
) < file
->size
)
168 file
->buffer
[file
->size
] = '\0';
170 /* set the initial line numbering */
171 file
->real_line
.line_nr
= 1; /* specifies current line */
172 file
->pseudo_line
.line_nr
= 1; /* specifies current line */
179 table_open (const char *file_name
)
183 /* create a file descriptor */
184 root
= ZALLOC (table
);
191 table_push (root
, NULL
, NULL
, file_name
);
196 skip_spaces (char *chp
)
200 if (*chp
== '\0' || *chp
== '\n' || !isspace (*chp
))
208 back_spaces (char *start
, char *chp
)
212 if (chp
<= start
|| !isspace (chp
[-1]))
219 skip_digits (char *chp
)
223 if (*chp
== '\0' || *chp
== '\n' || !isdigit (*chp
))
230 skip_to_separator (char *chp
, char *separators
)
234 char *sep
= separators
;
248 skip_to_null (char *chp
)
250 return skip_to_separator (chp
, "");
255 skip_to_nl (char *chp
)
257 return skip_to_separator (chp
, "\n");
262 next_line (open_table
* file
)
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");
269 file
->real_line
.line_nr
+= 1;
270 file
->pseudo_line
.line_nr
+= 1;
275 table_read (table
*root
)
277 open_table
*file
= root
->current
;
278 table_entry
*entry
= NULL
;
283 while (*file
->pos
== '\0')
285 if (file
->parent
!= NULL
)
288 root
->current
= file
;
295 if (*file
->pos
== '{')
298 next_line (file
); /* discard leading brace */
299 entry
= new_table_entry (file
, table_code_entry
);
301 /* determine how many lines are involved - look for <nl> "}" */
304 while (*file
->pos
!= '}')
309 set_nr_table_entry_fields (entry
, nr_lines
);
311 /* now enter each line */
314 for (line_nr
= 0; line_nr
< entry
->nr_fields
; line_nr
++)
316 if (strncmp (chp
, " ", 2) == 0)
317 entry
->field
[line_nr
] = chp
+ 2;
319 entry
->field
[line_nr
] = chp
;
320 chp
= skip_to_null (chp
) + 1;
322 /* skip trailing brace */
323 ASSERT (*file
->pos
== '}');
330 if (*file
->pos
== '\t')
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> */
337 int nr_blank_lines
= 0;
340 if (*file
->pos
== '\t')
342 nr_lines
= nr_lines
+ nr_blank_lines
+ 1;
348 file
->pos
= skip_spaces (file
->pos
);
349 if (*file
->pos
!= '\n')
355 set_nr_table_entry_fields (entry
, nr_lines
);
357 /* now enter each line */
360 for (line_nr
= 0; line_nr
< entry
->nr_fields
; line_nr
++)
363 entry
->field
[line_nr
] = chp
+ 1;
365 entry
->field
[line_nr
] = ""; /* blank */
366 chp
= skip_to_null (chp
) + 1;
373 if (file
->pos
[0] == '#')
375 char *chp
= skip_spaces (file
->pos
+ 1);
377 /* cpp line-nr directive - # <line-nr> "<file>" */
379 && *skip_digits (chp
) == ' '
380 && *skip_spaces (skip_digits (chp
)) == '"')
385 /* parse the number */
386 line_nr
= atoi (file
->pos
) - 1;
387 /* skip to the file name */
388 while (file
->pos
[0] != '0'
389 && file
->pos
[0] != '"' && file
->pos
[0] != '\0')
391 if (file
->pos
[0] != '"')
392 error (&file
->real_line
,
393 "Missing opening quote in cpp directive\n");
394 /* parse the file name */
396 file_name
= file
->pos
;
397 while (file
->pos
[0] != '"' && file
->pos
[0] != '\0')
399 if (file
->pos
[0] != '"')
400 error (&file
->real_line
,
401 "Missing closing quote in cpp directive\n");
404 file
->pos
= skip_to_nl (file
->pos
);
405 if (file
->pos
[0] != '\n')
406 error (&file
->real_line
,
407 "Missing newline in cpp directive\n");
408 file
->pseudo_line
.file_name
= file_name
;
409 file
->pseudo_line
.line_nr
= line_nr
;
414 /* #define and #undef - not implemented yet */
416 /* Old style # comment */
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')
431 /* comment - leading // or # - skip */
432 if ((file
->pos
[0] == '/' && file
->pos
[1] == '/')
433 || (file
->pos
[0] == '#'))
441 char *chp
= file
->pos
;
442 entry
= new_table_entry (file
, table_colon_entry
);
444 /* figure out how many fields */
450 tmpch
= skip_to_separator (tmpch
, "\\:");
453 /* eat the escaped character */
455 while (cp
[1] != '\0')
463 else if (*tmpch
!= ':')
472 set_nr_table_entry_fields (entry
, nr_fields
);
477 for (field_nr
= 0; field_nr
< entry
->nr_fields
; field_nr
++)
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';
491 ASSERT (entry
== NULL
|| entry
->field
[entry
->nr_fields
] == NULL
);
496 table_print_code (lf
*file
, table_entry
*entry
)
500 for (field_nr
= 0; field_nr
< entry
->nr_fields
; field_nr
++)
502 char *chp
= entry
->field
[field_nr
];
503 int in_bit_field
= 0;
505 lf_indent_suppress (file
);
508 if (chp
[0] == '{' && !isspace (chp
[1]) && chp
[1] != '\0')
511 nr
+= lf_putchr (file
, '_');
513 else if (in_bit_field
&& chp
[0] == ':')
515 nr
+= lf_putchr (file
, '_');
517 else if (in_bit_field
&& *chp
== '}')
519 nr
+= lf_putchr (file
, '_');
524 nr
+= lf_putchr (file
, *chp
);
530 line_ref line
= *entry
->line
;
531 line
.line_nr
+= field_nr
;
532 error (&line
, "Bit field brace miss match\n");
534 nr
+= lf_putchr (file
, '\n');
541 dump_line_ref (lf
*file
, char *prefix
, const line_ref
*line
, char *suffix
)
543 lf_printf (file
, "%s(line_ref*) 0x%lx", prefix
, (long) line
);
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);
551 lf_printf (file
, "%s", suffix
);
556 table_entry_type_to_str (table_entry_type type
)
560 case table_code_entry
:
562 case table_colon_entry
:
563 return "colon-entry";
569 dump_table_entry (lf
*file
,
570 char *prefix
, const table_entry
*entry
, char *suffix
)
572 lf_printf (file
, "%s(table_entry*) 0x%lx", prefix
, (long) entry
);
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);
588 lf_printf (file
, "%s", suffix
);
594 main (int argc
, char **argv
)
603 printf ("Usage: table <file>\n");
607 t
= table_open (argv
[1]);
608 l
= lf_open ("-", "stdout", lf_omit_references
, lf_is_text
, "tmp-table");
614 entry
= table_read (t
);
616 sprintf (line
, "(%d ", line_nr
);
617 dump_table_entry (l
, line
, entry
, ")\n");
619 while (entry
!= NULL
);
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