File: | src/gnu/usr.bin/binutils-2.17/gas/listing.c |
Warning: | line 999, column 6 Value stored to 'p' is never read |
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1 | /* listing.c - maintain assembly listings |
2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
3 | 2001, 2002, 2003, 2005 |
4 | Free Software Foundation, Inc. |
5 | |
6 | This file is part of GAS, the GNU Assembler. |
7 | |
8 | GAS is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 2, or (at your option) |
11 | any later version. |
12 | |
13 | GAS is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with GAS; see the file COPYING. If not, write to the Free |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ |
22 | |
23 | /* Contributed by Steve Chamberlain <sac@cygnus.com> |
24 | |
25 | A listing page looks like: |
26 | |
27 | LISTING_HEADER sourcefilename pagenumber |
28 | TITLE LINE |
29 | SUBTITLE LINE |
30 | linenumber address data source |
31 | linenumber address data source |
32 | linenumber address data source |
33 | linenumber address data source |
34 | |
35 | If not overridden, the listing commands are: |
36 | |
37 | .title "stuff" |
38 | Put "stuff" onto the title line |
39 | .sbttl "stuff" |
40 | Put stuff onto the subtitle line |
41 | |
42 | If these commands come within 10 lines of the top of the page, they |
43 | will affect the page they are on, as well as any subsequent page |
44 | |
45 | .eject |
46 | Thow a page |
47 | .list |
48 | Increment the enable listing counter |
49 | .nolist |
50 | Decrement the enable listing counter |
51 | |
52 | .psize Y[,X] |
53 | Set the paper size to X wide and Y high. Setting a psize Y of |
54 | zero will suppress form feeds except where demanded by .eject |
55 | |
56 | If the counter goes below zero, listing is suppressed. |
57 | |
58 | Listings are a maintained by read calling various listing_<foo> |
59 | functions. What happens most is that the macro NO_LISTING is not |
60 | defined (from the Makefile), then the macro LISTING_NEWLINE expands |
61 | into a call to listing_newline. The call is done from read.c, every |
62 | time it sees a newline, and -l is on the command line. |
63 | |
64 | The function listing_newline remembers the frag associated with the |
65 | newline, and creates a new frag - note that this is wasteful, but not |
66 | a big deal, since listing slows things down a lot anyway. The |
67 | function also remembers when the filename changes. |
68 | |
69 | When all the input has finished, and gas has had a chance to settle |
70 | down, the listing is output. This is done by running down the list of |
71 | frag/source file records, and opening the files as needed and printing |
72 | out the bytes and chars associated with them. |
73 | |
74 | The only things which the architecture can change about the listing |
75 | are defined in these macros: |
76 | |
77 | LISTING_HEADER The name of the architecture |
78 | LISTING_WORD_SIZE The make of the number of bytes in a word, this determines |
79 | the clumping of the output data. eg a value of |
80 | 2 makes words look like 1234 5678, whilst 1 |
81 | would make the same value look like 12 34 56 |
82 | 78 |
83 | LISTING_LHS_WIDTH Number of words of above size for the lhs |
84 | |
85 | LISTING_LHS_WIDTH_SECOND Number of words for the data on the lhs |
86 | for the second line |
87 | |
88 | LISTING_LHS_CONT_LINES Max number of lines to use up for a continuation |
89 | LISTING_RHS_WIDTH Number of chars from the input file to print |
90 | on a line. */ |
91 | |
92 | #include "as.h" |
93 | #include "obstack.h" |
94 | #include "safe-ctype.h" |
95 | #include "input-file.h" |
96 | #include "subsegs.h" |
97 | |
98 | #ifndef NO_LISTING |
99 | |
100 | #ifndef LISTING_HEADER"GAS LISTING" |
101 | #define LISTING_HEADER"GAS LISTING" "GAS LISTING" |
102 | #endif |
103 | #ifndef LISTING_WORD_SIZE4 |
104 | #define LISTING_WORD_SIZE4 4 |
105 | #endif |
106 | #ifndef LISTING_LHS_WIDTH((4) > 4 ? 1 : 4 / (4)) |
107 | #define LISTING_LHS_WIDTH((4) > 4 ? 1 : 4 / (4)) ((LISTING_WORD_SIZE4) > 4 ? 1 : 4 / (LISTING_WORD_SIZE4)) |
108 | #endif |
109 | #ifndef LISTING_LHS_WIDTH_SECOND((4) > 4 ? 1 : 4 / (4)) |
110 | #define LISTING_LHS_WIDTH_SECOND((4) > 4 ? 1 : 4 / (4)) LISTING_LHS_WIDTH((4) > 4 ? 1 : 4 / (4)) |
111 | #endif |
112 | #ifndef LISTING_RHS_WIDTH100 |
113 | #define LISTING_RHS_WIDTH100 100 |
114 | #endif |
115 | #ifndef LISTING_LHS_CONT_LINES4 |
116 | #define LISTING_LHS_CONT_LINES4 4 |
117 | #endif |
118 | |
119 | /* This structure remembers which .s were used. */ |
120 | typedef struct file_info_struct |
121 | { |
122 | struct file_info_struct * next; |
123 | char * filename; |
124 | long pos; |
125 | unsigned int linenum; |
126 | int at_end; |
127 | } file_info_type; |
128 | |
129 | /* This structure remembers which line from which file goes into which |
130 | frag. */ |
131 | struct list_info_struct |
132 | { |
133 | /* Frag which this line of source is nearest to. */ |
134 | fragS *frag; |
135 | |
136 | /* The actual line in the source file. */ |
137 | unsigned int line; |
138 | |
139 | /* Pointer to the file info struct for the file which this line |
140 | belongs to. */ |
141 | file_info_type *file; |
142 | |
143 | /* The expanded text of any macro that may have been executing. */ |
144 | char *line_contents; |
145 | |
146 | /* Next in list. */ |
147 | struct list_info_struct *next; |
148 | |
149 | /* Pointer to the file info struct for the high level language |
150 | source line that belongs here. */ |
151 | file_info_type *hll_file; |
152 | |
153 | /* High level language source line. */ |
154 | unsigned int hll_line; |
155 | |
156 | /* Pointer to any error message associated with this line. */ |
157 | char *message; |
158 | |
159 | enum |
160 | { |
161 | EDICT_NONE, |
162 | EDICT_SBTTL, |
163 | EDICT_TITLE, |
164 | EDICT_NOLIST, |
165 | EDICT_LIST, |
166 | EDICT_NOLIST_NEXT, |
167 | EDICT_EJECT |
168 | } edict; |
169 | char *edict_arg; |
170 | |
171 | /* Nonzero if this line is to be omitted because it contains |
172 | debugging information. This can become a flags field if we come |
173 | up with more information to store here. */ |
174 | int debugging; |
175 | }; |
176 | |
177 | typedef struct list_info_struct list_info_type; |
178 | |
179 | int listing_lhs_width = LISTING_LHS_WIDTH((4) > 4 ? 1 : 4 / (4)); |
180 | int listing_lhs_width_second = LISTING_LHS_WIDTH_SECOND((4) > 4 ? 1 : 4 / (4)); |
181 | int listing_lhs_cont_lines = LISTING_LHS_CONT_LINES4; |
182 | int listing_rhs_width = LISTING_RHS_WIDTH100; |
183 | |
184 | struct list_info_struct * listing_tail; |
185 | |
186 | static file_info_type * file_info_head; |
187 | static file_info_type * last_open_file_info; |
188 | static FILE * last_open_file; |
189 | static struct list_info_struct * head; |
190 | static int paper_width = 200; |
191 | static int paper_height = 60; |
192 | |
193 | extern int listing; |
194 | |
195 | /* File to output listings to. */ |
196 | static FILE *list_file; |
197 | |
198 | /* This static array is used to keep the text of data to be printed |
199 | before the start of the line. */ |
200 | |
201 | #define MAX_BYTES(((4 * 2) + 1) * listing_lhs_width + ((((4 * 2) + 1) * listing_lhs_width_second ) * listing_lhs_cont_lines) + 20) \ |
202 | (((LISTING_WORD_SIZE4 * 2) + 1) * listing_lhs_width \ |
203 | + ((((LISTING_WORD_SIZE4 * 2) + 1) * listing_lhs_width_second) \ |
204 | * listing_lhs_cont_lines) \ |
205 | + 20) |
206 | |
207 | static char *data_buffer; |
208 | |
209 | /* Prototypes. */ |
210 | static void listing_message (const char *, const char *); |
211 | static file_info_type *file_info (const char *); |
212 | static void new_frag (void); |
213 | static char *buffer_line (file_info_type *, char *, unsigned int); |
214 | static void listing_page (list_info_type *); |
215 | static unsigned int calc_hex (list_info_type *); |
216 | static void print_lines (list_info_type *, unsigned int, char *, unsigned int); |
217 | static void list_symbol_table (void); |
218 | static void print_source (file_info_type *, list_info_type *, char *, unsigned int); |
219 | static int debugging_pseudo (list_info_type *, const char *); |
220 | static void listing_listing (char *); |
221 | |
222 | static void |
223 | listing_message (const char *name, const char *message) |
224 | { |
225 | if (listing_tail != (list_info_type *) NULL((void*)0)) |
226 | { |
227 | unsigned int l = strlen (name) + strlen (message) + 1; |
228 | char *n = (char *) xmalloc (l); |
229 | strcpy (n, name); |
230 | strcat (n, message); |
231 | listing_tail->message = n; |
232 | } |
233 | } |
234 | |
235 | void |
236 | listing_warning (const char *message) |
237 | { |
238 | listing_message (_("Warning:")("Warning:"), message); |
239 | } |
240 | |
241 | void |
242 | listing_error (const char *message) |
243 | { |
244 | listing_message (_("Error:")("Error:"), message); |
245 | } |
246 | |
247 | static file_info_type * |
248 | file_info (const char *file_name) |
249 | { |
250 | /* Find an entry with this file name. */ |
251 | file_info_type *p = file_info_head; |
252 | |
253 | while (p != (file_info_type *) NULL((void*)0)) |
254 | { |
255 | if (strcmp (p->filename, file_name) == 0) |
256 | return p; |
257 | p = p->next; |
258 | } |
259 | |
260 | /* Make new entry. */ |
261 | p = xmalloc (sizeof (file_info_type)); |
262 | p->next = file_info_head; |
263 | file_info_head = p; |
264 | p->filename = xstrdup (file_name); |
265 | p->pos = 0; |
266 | p->linenum = 0; |
267 | p->at_end = 0; |
268 | |
269 | return p; |
270 | } |
271 | |
272 | static void |
273 | new_frag (void) |
274 | { |
275 | frag_wane (frag_now); |
276 | frag_new (0); |
277 | } |
278 | |
279 | void |
280 | listing_newline (char *ps) |
281 | { |
282 | char *file; |
283 | unsigned int line; |
284 | static unsigned int last_line = 0xffff; |
285 | static char *last_file = NULL((void*)0); |
286 | list_info_type *new = NULL((void*)0); |
287 | |
288 | if (listing == 0) |
289 | return; |
290 | |
291 | if (now_seg == absolute_section((asection *) &bfd_abs_section)) |
292 | return; |
293 | |
294 | #ifdef OBJ_ELF1 |
295 | /* In ELF, anything in a section beginning with .debug or .line is |
296 | considered to be debugging information. This includes the |
297 | statement which switches us into the debugging section, which we |
298 | can only set after we are already in the debugging section. */ |
299 | if ((listing & LISTING_NODEBUG16) != 0 |
300 | && listing_tail != NULL((void*)0) |
301 | && ! listing_tail->debugging) |
302 | { |
303 | const char *segname; |
304 | |
305 | segname = segment_name (now_seg)((now_seg)->name + 0); |
306 | if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0 |
307 | || strncmp (segname, ".line", sizeof ".line" - 1) == 0) |
308 | listing_tail->debugging = 1; |
309 | } |
310 | #endif |
311 | |
312 | as_where (&file, &line); |
313 | if (ps == NULL((void*)0)) |
314 | { |
315 | if (line == last_line |
316 | && !(last_file && file && strcmp (file, last_file))) |
317 | return; |
318 | |
319 | new = (list_info_type *) xmalloc (sizeof (list_info_type)); |
320 | |
321 | /* Detect if we are reading from stdin by examining the file |
322 | name returned by as_where(). |
323 | |
324 | [FIXME: We rely upon the name in the strcmp below being the |
325 | same as the one used by input_scrub_new_file(), if that is |
326 | not true, then this code will fail]. |
327 | |
328 | If we are reading from stdin, then we need to save each input |
329 | line here (assuming of course that we actually have a line of |
330 | input to read), so that it can be displayed in the listing |
331 | that is produced at the end of the assembly. */ |
332 | if (strcmp (file, _("{standard input}")("{standard input}")) == 0 |
333 | && input_line_pointer != NULL((void*)0)) |
334 | { |
335 | char *copy; |
336 | int len; |
337 | int seen_quote = 0; |
338 | |
339 | for (copy = input_line_pointer - 1; |
340 | *copy && (seen_quote |
341 | || (! is_end_of_line [(unsigned char) *copy])); |
342 | copy++) |
343 | if (*copy == '"' && copy[-1] != '\\') |
344 | seen_quote = ! seen_quote; |
345 | |
346 | len = (copy - input_line_pointer) + 2; |
347 | |
348 | copy = xmalloc (len); |
349 | |
350 | if (copy != NULL((void*)0)) |
351 | { |
352 | char *src = input_line_pointer - 1; |
353 | char *dest = copy; |
354 | |
355 | while (--len) |
356 | { |
357 | unsigned char c = *src++; |
358 | |
359 | /* Omit control characters in the listing. */ |
360 | if (!ISCNTRL (c)(_sch_istable[(c) & 0xff] & (unsigned short)(_sch_iscntrl ))) |
361 | *dest++ = c; |
362 | } |
363 | |
364 | *dest = 0; |
365 | } |
366 | |
367 | new->line_contents = copy; |
368 | } |
369 | else |
370 | new->line_contents = NULL((void*)0); |
371 | } |
372 | else |
373 | { |
374 | new = xmalloc (sizeof (list_info_type)); |
375 | new->line_contents = ps; |
376 | } |
377 | |
378 | last_line = line; |
379 | last_file = file; |
380 | |
381 | new_frag (); |
382 | |
383 | if (listing_tail) |
384 | listing_tail->next = new; |
385 | else |
386 | head = new; |
387 | |
388 | listing_tail = new; |
389 | |
390 | new->frag = frag_now; |
391 | new->line = line; |
392 | new->file = file_info (file); |
393 | new->next = (list_info_type *) NULL((void*)0); |
394 | new->message = (char *) NULL((void*)0); |
395 | new->edict = EDICT_NONE; |
396 | new->hll_file = (file_info_type *) NULL((void*)0); |
397 | new->hll_line = 0; |
398 | new->debugging = 0; |
399 | |
400 | new_frag (); |
401 | |
402 | #ifdef OBJ_ELF1 |
403 | /* In ELF, anything in a section beginning with .debug or .line is |
404 | considered to be debugging information. */ |
405 | if ((listing & LISTING_NODEBUG16) != 0) |
406 | { |
407 | const char *segname; |
408 | |
409 | segname = segment_name (now_seg)((now_seg)->name + 0); |
410 | if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0 |
411 | || strncmp (segname, ".line", sizeof ".line" - 1) == 0) |
412 | new->debugging = 1; |
413 | } |
414 | #endif |
415 | } |
416 | |
417 | /* Attach all current frags to the previous line instead of the |
418 | current line. This is called by the MIPS backend when it discovers |
419 | that it needs to add some NOP instructions; the added NOP |
420 | instructions should go with the instruction that has the delay, not |
421 | with the new instruction. */ |
422 | |
423 | void |
424 | listing_prev_line (void) |
425 | { |
426 | list_info_type *l; |
427 | fragS *f; |
428 | |
429 | if (head == (list_info_type *) NULL((void*)0) |
430 | || head == listing_tail) |
431 | return; |
432 | |
433 | new_frag (); |
434 | |
435 | for (l = head; l->next != listing_tail; l = l->next) |
436 | ; |
437 | |
438 | for (f = frchain_now->frch_root; f != (fragS *) NULL((void*)0); f = f->fr_next) |
439 | if (f->line == listing_tail) |
440 | f->line = l; |
441 | |
442 | listing_tail->frag = frag_now; |
443 | new_frag (); |
444 | } |
445 | |
446 | /* This function returns the next source line from the file supplied, |
447 | truncated to size. It appends a fake line to the end of each input |
448 | file to make. */ |
449 | |
450 | static char * |
451 | buffer_line (file_info_type *file, char *line, unsigned int size) |
452 | { |
453 | unsigned int count = 0; |
454 | int c; |
455 | |
456 | char *p = line; |
457 | |
458 | /* If we couldn't open the file, return an empty line. */ |
459 | if (file->at_end) |
460 | return ""; |
461 | |
462 | /* Check the cache and see if we last used this file. */ |
463 | if (!last_open_file_info || file != last_open_file_info) |
464 | { |
465 | if (last_open_file) |
466 | { |
467 | last_open_file_info->pos = ftell (last_open_file); |
468 | fclose (last_open_file); |
469 | } |
470 | |
471 | last_open_file_info = file; |
472 | last_open_file = fopen (file->filename, FOPEN_RT"r"); |
473 | if (last_open_file == NULL((void*)0)) |
474 | { |
475 | file->at_end = 1; |
476 | return ""; |
477 | } |
478 | |
479 | /* Seek to where we were last time this file was open. */ |
480 | if (file->pos) |
481 | fseek (last_open_file, file->pos, SEEK_SET0); |
482 | } |
483 | |
484 | c = fgetc (last_open_file); |
485 | |
486 | /* Leave room for null. */ |
487 | size -= 1; |
488 | |
489 | while (c != EOF(-1) && c != '\n') |
490 | { |
491 | if (count < size) |
492 | *p++ = c; |
493 | count++; |
494 | |
495 | c = fgetc (last_open_file); |
496 | |
497 | } |
498 | if (c == EOF(-1)) |
499 | { |
500 | file->at_end = 1; |
501 | if (count + 2 < size) |
502 | { |
503 | *p++ = '.'; |
504 | *p++ = '.'; |
505 | *p++ = '.'; |
506 | } |
507 | } |
508 | file->linenum++; |
509 | *p++ = 0; |
510 | return line; |
511 | } |
512 | |
513 | static const char *fn; |
514 | |
515 | static unsigned int eject; /* Eject pending */ |
516 | static unsigned int page; /* Current page number */ |
517 | static char *title; /* Current title */ |
518 | static char *subtitle; /* Current subtitle */ |
519 | static unsigned int on_page; /* Number of lines printed on current page */ |
520 | |
521 | static void |
522 | listing_page (list_info_type *list) |
523 | { |
524 | /* Grope around, see if we can see a title or subtitle edict coming up |
525 | soon. (we look down 10 lines of the page and see if it's there) */ |
526 | if ((eject || (on_page >= (unsigned int) paper_height)) |
527 | && paper_height != 0) |
528 | { |
529 | unsigned int c = 10; |
530 | int had_title = 0; |
531 | int had_subtitle = 0; |
532 | |
533 | page++; |
534 | |
535 | while (c != 0 && list) |
536 | { |
537 | if (list->edict == EDICT_SBTTL && !had_subtitle) |
538 | { |
539 | had_subtitle = 1; |
540 | subtitle = list->edict_arg; |
541 | } |
542 | if (list->edict == EDICT_TITLE && !had_title) |
543 | { |
544 | had_title = 1; |
545 | title = list->edict_arg; |
546 | } |
547 | list = list->next; |
548 | c--; |
549 | } |
550 | |
551 | if (page > 1) |
552 | { |
553 | fprintf (list_file, "\f"); |
554 | } |
555 | |
556 | fprintf (list_file, "%s %s \t\t\tpage %d\n", LISTING_HEADER"GAS LISTING", fn, page); |
557 | fprintf (list_file, "%s\n", title); |
558 | fprintf (list_file, "%s\n", subtitle); |
559 | on_page = 3; |
560 | eject = 0; |
561 | } |
562 | } |
563 | |
564 | static unsigned int |
565 | calc_hex (list_info_type *list) |
566 | { |
567 | int data_buffer_size; |
568 | list_info_type *first = list; |
569 | unsigned int address = ~(unsigned int) 0; |
570 | fragS *frag; |
571 | fragS *frag_ptr; |
572 | unsigned int octet_in_frag; |
573 | |
574 | /* Find first frag which says it belongs to this line. */ |
575 | frag = list->frag; |
576 | while (frag && frag->line != list) |
577 | frag = frag->fr_next; |
578 | |
579 | frag_ptr = frag; |
580 | |
581 | data_buffer_size = 0; |
582 | |
583 | /* Dump all the frags which belong to this line. */ |
584 | while (frag_ptr != (fragS *) NULL((void*)0) && frag_ptr->line == first) |
585 | { |
586 | /* Print as many bytes from the fixed part as is sensible. */ |
587 | octet_in_frag = 0; |
588 | while ((offsetT) octet_in_frag < frag_ptr->fr_fix |
589 | && data_buffer_size < MAX_BYTES(((4 * 2) + 1) * listing_lhs_width + ((((4 * 2) + 1) * listing_lhs_width_second ) * listing_lhs_cont_lines) + 20) - 3) |
590 | { |
591 | if (address == ~(unsigned int) 0) |
592 | address = frag_ptr->fr_address / OCTETS_PER_BYTE(1<<0); |
593 | |
594 | sprintf (data_buffer + data_buffer_size, |
595 | "%02X", |
596 | (frag_ptr->fr_literal[octet_in_frag]) & 0xff); |
597 | data_buffer_size += 2; |
598 | octet_in_frag++; |
599 | } |
600 | if (frag_ptr->fr_type == rs_fill) |
601 | { |
602 | unsigned int var_rep_max = octet_in_frag; |
603 | unsigned int var_rep_idx = octet_in_frag; |
604 | |
605 | /* Print as many bytes from the variable part as is sensible. */ |
606 | while (((offsetT) octet_in_frag |
607 | < (frag_ptr->fr_fix + frag_ptr->fr_var * frag_ptr->fr_offset)) |
608 | && data_buffer_size < MAX_BYTES(((4 * 2) + 1) * listing_lhs_width + ((((4 * 2) + 1) * listing_lhs_width_second ) * listing_lhs_cont_lines) + 20) - 3) |
609 | { |
610 | if (address == ~(unsigned int) 0) |
611 | address = frag_ptr->fr_address / OCTETS_PER_BYTE(1<<0); |
612 | |
613 | sprintf (data_buffer + data_buffer_size, |
614 | "%02X", |
615 | (frag_ptr->fr_literal[var_rep_idx]) & 0xff); |
616 | data_buffer_size += 2; |
617 | |
618 | var_rep_idx++; |
619 | octet_in_frag++; |
620 | |
621 | if ((offsetT) var_rep_idx >= frag_ptr->fr_fix + frag_ptr->fr_var) |
622 | var_rep_idx = var_rep_max; |
623 | } |
624 | } |
625 | |
626 | frag_ptr = frag_ptr->fr_next; |
627 | } |
628 | data_buffer[data_buffer_size] = '\0'; |
629 | return address; |
630 | } |
631 | |
632 | static void |
633 | print_lines (list_info_type *list, unsigned int lineno, |
634 | char *string, unsigned int address) |
635 | { |
636 | unsigned int idx; |
637 | unsigned int nchars; |
638 | unsigned int lines; |
639 | unsigned int octet_in_word = 0; |
640 | char *src = data_buffer; |
641 | int cur; |
642 | |
643 | /* Print the stuff on the first line. */ |
644 | listing_page (list); |
645 | nchars = (LISTING_WORD_SIZE4 * 2 + 1) * listing_lhs_width; |
646 | |
647 | /* Print the hex for the first line. */ |
648 | if (address == ~(unsigned int) 0) |
649 | { |
650 | fprintf (list_file, "% 4d ", lineno); |
651 | for (idx = 0; idx < nchars; idx++) |
652 | fprintf (list_file, " "); |
653 | |
654 | fprintf (list_file, "\t%s\n", string ? string : ""); |
655 | |
656 | on_page++; |
657 | |
658 | listing_page (0); |
659 | |
660 | return; |
661 | } |
662 | |
663 | if (had_errors ()) |
664 | fprintf (list_file, "% 4d ???? ", lineno); |
665 | else |
666 | fprintf (list_file, "% 4d %04x ", lineno, address); |
667 | |
668 | /* And the data to go along with it. */ |
669 | idx = 0; |
670 | cur = 0; |
671 | while (src[cur] && idx < nchars) |
672 | { |
673 | int offset; |
674 | offset = cur; |
675 | fprintf (list_file, "%c%c", src[offset], src[offset + 1]); |
676 | cur += 2; |
677 | octet_in_word++; |
678 | |
679 | if (octet_in_word == LISTING_WORD_SIZE4) |
680 | { |
681 | fprintf (list_file, " "); |
682 | idx++; |
683 | octet_in_word = 0; |
684 | } |
685 | |
686 | idx += 2; |
687 | } |
688 | |
689 | for (; idx < nchars; idx++) |
690 | fprintf (list_file, " "); |
691 | |
692 | fprintf (list_file, "\t%s\n", string ? string : ""); |
693 | on_page++; |
694 | listing_page (list); |
695 | |
696 | if (list->message) |
697 | { |
698 | fprintf (list_file, "**** %s\n", list->message); |
699 | listing_page (list); |
700 | on_page++; |
701 | } |
702 | |
703 | for (lines = 0; |
704 | lines < (unsigned int) listing_lhs_cont_lines |
705 | && src[cur]; |
706 | lines++) |
707 | { |
708 | nchars = ((LISTING_WORD_SIZE4 * 2) + 1) * listing_lhs_width_second - 1; |
709 | idx = 0; |
710 | |
711 | /* Print any more lines of data, but more compactly. */ |
712 | fprintf (list_file, "% 4d ", lineno); |
713 | |
714 | while (src[cur] && idx < nchars) |
715 | { |
716 | int offset; |
717 | offset = cur; |
718 | fprintf (list_file, "%c%c", src[offset], src[offset + 1]); |
719 | cur += 2; |
720 | idx += 2; |
721 | octet_in_word++; |
722 | |
723 | if (octet_in_word == LISTING_WORD_SIZE4) |
724 | { |
725 | fprintf (list_file, " "); |
726 | idx++; |
727 | octet_in_word = 0; |
728 | } |
729 | } |
730 | |
731 | fprintf (list_file, "\n"); |
732 | on_page++; |
733 | listing_page (list); |
734 | } |
735 | } |
736 | |
737 | static void |
738 | list_symbol_table (void) |
739 | { |
740 | extern symbolS *symbol_rootP; |
741 | int got_some = 0; |
742 | |
743 | symbolS *ptr; |
744 | eject = 1; |
745 | listing_page (0); |
746 | |
747 | for (ptr = symbol_rootP; ptr != (symbolS *) NULL((void*)0); ptr = symbol_next (ptr)) |
748 | { |
749 | if (SEG_NORMAL (S_GET_SEGMENT (ptr))( (S_GET_SEGMENT (ptr)) != ((asection *) &bfd_abs_section ) && (S_GET_SEGMENT (ptr)) != ((asection *) &bfd_und_section ) && (S_GET_SEGMENT (ptr)) != reg_section && ( S_GET_SEGMENT (ptr)) != expr_section) |
750 | || S_GET_SEGMENT (ptr) == absolute_section((asection *) &bfd_abs_section)) |
751 | { |
752 | /* Don't report section symbols. They are not interesting. */ |
753 | if (symbol_section_p (ptr)) |
754 | continue; |
755 | |
756 | if (S_GET_NAME (ptr)) |
757 | { |
758 | char buf[30], fmt[8]; |
759 | valueT val = S_GET_VALUE (ptr); |
760 | |
761 | /* @@ Note that this is dependent on the compilation options, |
762 | not solely on the target characteristics. */ |
763 | if (sizeof (val) == 4 && sizeof (int) == 4) |
764 | sprintf (buf, "%08lx", (unsigned long) val); |
765 | else if (sizeof (val) <= sizeof (unsigned long)) |
766 | { |
767 | sprintf (fmt, "%%0%lulx", |
768 | (unsigned long) (sizeof (val) * 2)); |
769 | sprintf (buf, fmt, (unsigned long) val); |
770 | } |
771 | #if defined (BFD64) |
772 | else if (sizeof (val) > 4) |
773 | sprintf_vma (buf, val)sprintf (buf, "%016lx", val); |
774 | #endif |
775 | else |
776 | abort ()as_abort ("/usr/src/gnu/usr.bin/binutils-2.17/gas/listing.c", 776, __PRETTY_FUNCTION__); |
777 | |
778 | if (!got_some) |
779 | { |
780 | fprintf (list_file, "DEFINED SYMBOLS\n"); |
781 | on_page++; |
782 | got_some = 1; |
783 | } |
784 | |
785 | if (symbol_get_frag (ptr) && symbol_get_frag (ptr)->line) |
786 | { |
787 | fprintf (list_file, "%20s:%-5d %s:%s %s\n", |
788 | symbol_get_frag (ptr)->line->file->filename, |
789 | symbol_get_frag (ptr)->line->line, |
790 | segment_name (S_GET_SEGMENT (ptr))((S_GET_SEGMENT (ptr))->name + 0), |
791 | buf, S_GET_NAME (ptr)); |
792 | } |
793 | else |
794 | { |
795 | fprintf (list_file, "%33s:%s %s\n", |
796 | segment_name (S_GET_SEGMENT (ptr))((S_GET_SEGMENT (ptr))->name + 0), |
797 | buf, S_GET_NAME (ptr)); |
798 | } |
799 | |
800 | on_page++; |
801 | listing_page (0); |
802 | } |
803 | } |
804 | |
805 | } |
806 | if (!got_some) |
807 | { |
808 | fprintf (list_file, "NO DEFINED SYMBOLS\n"); |
809 | on_page++; |
810 | } |
811 | fprintf (list_file, "\n"); |
812 | on_page++; |
813 | listing_page (0); |
814 | |
815 | got_some = 0; |
816 | |
817 | for (ptr = symbol_rootP; ptr != (symbolS *) NULL((void*)0); ptr = symbol_next (ptr)) |
818 | { |
819 | if (S_GET_NAME (ptr) && strlen (S_GET_NAME (ptr)) != 0) |
820 | { |
821 | if (S_GET_SEGMENT (ptr) == undefined_section((asection *) &bfd_und_section)) |
822 | { |
823 | if (!got_some) |
824 | { |
825 | got_some = 1; |
826 | fprintf (list_file, "UNDEFINED SYMBOLS\n"); |
827 | on_page++; |
828 | listing_page (0); |
829 | } |
830 | fprintf (list_file, "%s\n", S_GET_NAME (ptr)); |
831 | on_page++; |
832 | listing_page (0); |
833 | } |
834 | } |
835 | } |
836 | if (!got_some) |
837 | { |
838 | fprintf (list_file, "NO UNDEFINED SYMBOLS\n"); |
839 | on_page++; |
840 | listing_page (0); |
841 | } |
842 | } |
843 | |
844 | static void |
845 | print_source (file_info_type *current_file, list_info_type *list, |
846 | char *buffer, unsigned int width) |
847 | { |
848 | if (!current_file->at_end) |
849 | { |
850 | while (current_file->linenum < list->hll_line |
851 | && !current_file->at_end) |
852 | { |
853 | char *p = buffer_line (current_file, buffer, width); |
854 | |
855 | fprintf (list_file, "%4u:%-13s **** %s\n", current_file->linenum, |
856 | current_file->filename, p); |
857 | on_page++; |
858 | listing_page (list); |
859 | } |
860 | } |
861 | } |
862 | |
863 | /* Sometimes the user doesn't want to be bothered by the debugging |
864 | records inserted by the compiler, see if the line is suspicious. */ |
865 | |
866 | static int |
867 | debugging_pseudo (list_info_type *list, const char *line) |
868 | { |
869 | static int in_debug; |
870 | int was_debug; |
871 | |
872 | if (list->debugging) |
873 | { |
874 | in_debug = 1; |
875 | return 1; |
876 | } |
877 | |
878 | was_debug = in_debug; |
879 | in_debug = 0; |
880 | |
881 | while (ISSPACE (*line)(_sch_istable[(*line) & 0xff] & (unsigned short)(_sch_isspace ))) |
882 | line++; |
883 | |
884 | if (*line != '.') |
885 | { |
886 | #ifdef OBJ_ELF1 |
887 | /* The ELF compiler sometimes emits blank lines after switching |
888 | out of a debugging section. If the next line drops us back |
889 | into debugging information, then don't print the blank line. |
890 | This is a hack for a particular compiler behaviour, not a |
891 | general case. */ |
892 | if (was_debug |
893 | && *line == '\0' |
894 | && list->next != NULL((void*)0) |
895 | && list->next->debugging) |
896 | { |
897 | in_debug = 1; |
898 | return 1; |
899 | } |
900 | #endif |
901 | |
902 | return 0; |
903 | } |
904 | |
905 | line++; |
906 | |
907 | if (strncmp (line, "def", 3) == 0) |
908 | return 1; |
909 | if (strncmp (line, "val", 3) == 0) |
910 | return 1; |
911 | if (strncmp (line, "scl", 3) == 0) |
912 | return 1; |
913 | if (strncmp (line, "line", 4) == 0) |
914 | return 1; |
915 | if (strncmp (line, "endef", 5) == 0) |
916 | return 1; |
917 | if (strncmp (line, "ln", 2) == 0) |
918 | return 1; |
919 | if (strncmp (line, "type", 4) == 0) |
920 | return 1; |
921 | if (strncmp (line, "size", 4) == 0) |
922 | return 1; |
923 | if (strncmp (line, "dim", 3) == 0) |
924 | return 1; |
925 | if (strncmp (line, "tag", 3) == 0) |
926 | return 1; |
927 | if (strncmp (line, "stabs", 5) == 0) |
928 | return 1; |
929 | if (strncmp (line, "stabn", 5) == 0) |
930 | return 1; |
931 | |
932 | return 0; |
933 | } |
934 | |
935 | static void |
936 | listing_listing (char *name ATTRIBUTE_UNUSED__attribute__ ((__unused__))) |
937 | { |
938 | list_info_type *list = head; |
939 | file_info_type *current_hll_file = (file_info_type *) NULL((void*)0); |
940 | char *message; |
941 | char *buffer; |
942 | char *p; |
943 | int show_listing = 1; |
944 | unsigned int width; |
945 | |
946 | buffer = xmalloc (listing_rhs_width); |
947 | data_buffer = xmalloc (MAX_BYTES(((4 * 2) + 1) * listing_lhs_width + ((((4 * 2) + 1) * listing_lhs_width_second ) * listing_lhs_cont_lines) + 20)); |
948 | eject = 1; |
949 | list = head; |
950 | |
951 | while (list != (list_info_type *) NULL((void*)0) && 0) |
952 | { |
953 | if (list->next) |
954 | list->frag = list->next->frag; |
955 | list = list->next; |
956 | } |
957 | |
958 | list = head->next; |
959 | |
960 | while (list) |
961 | { |
962 | unsigned int list_line; |
963 | |
964 | width = listing_rhs_width > paper_width ? paper_width : |
965 | listing_rhs_width; |
966 | |
967 | list_line = list->line; |
968 | switch (list->edict) |
969 | { |
970 | case EDICT_LIST: |
971 | /* Skip all lines up to the current. */ |
972 | list_line--; |
973 | break; |
974 | case EDICT_NOLIST: |
975 | show_listing--; |
976 | break; |
977 | case EDICT_NOLIST_NEXT: |
978 | if (show_listing == 0) |
979 | list_line--; |
980 | break; |
981 | case EDICT_EJECT: |
982 | break; |
983 | case EDICT_NONE: |
984 | break; |
985 | case EDICT_TITLE: |
986 | title = list->edict_arg; |
987 | break; |
988 | case EDICT_SBTTL: |
989 | subtitle = list->edict_arg; |
990 | break; |
991 | default: |
992 | abort ()as_abort ("/usr/src/gnu/usr.bin/binutils-2.17/gas/listing.c", 992, __PRETTY_FUNCTION__); |
993 | } |
994 | |
995 | if (show_listing <= 0) |
996 | { |
997 | while (list->file->linenum < list_line |
998 | && !list->file->at_end) |
999 | p = buffer_line (list->file, buffer, width); |
Value stored to 'p' is never read | |
1000 | } |
1001 | |
1002 | if (list->edict == EDICT_LIST |
1003 | || (list->edict == EDICT_NOLIST_NEXT && show_listing == 0)) |
1004 | { |
1005 | /* Enable listing for the single line that caused the enable. */ |
1006 | list_line++; |
1007 | show_listing++; |
1008 | } |
1009 | |
1010 | if (show_listing > 0) |
1011 | { |
1012 | /* Scan down the list and print all the stuff which can be done |
1013 | with this line (or lines). */ |
1014 | message = 0; |
1015 | |
1016 | if (list->hll_file) |
1017 | current_hll_file = list->hll_file; |
1018 | |
1019 | if (current_hll_file && list->hll_line && (listing & LISTING_HLL8)) |
1020 | print_source (current_hll_file, list, buffer, width); |
1021 | |
1022 | if (list->line_contents) |
1023 | { |
1024 | if (!((listing & LISTING_NODEBUG16) |
1025 | && debugging_pseudo (list, list->line_contents))) |
1026 | print_lines (list, |
1027 | list->file->linenum == 0 ? list->line : list->file->linenum, |
1028 | list->line_contents, calc_hex (list)); |
1029 | |
1030 | free (list->line_contents); |
1031 | list->line_contents = NULL((void*)0); |
1032 | } |
1033 | else |
1034 | { |
1035 | while (list->file->linenum < list_line |
1036 | && !list->file->at_end) |
1037 | { |
1038 | unsigned int address; |
1039 | |
1040 | p = buffer_line (list->file, buffer, width); |
1041 | |
1042 | if (list->file->linenum < list_line) |
1043 | address = ~(unsigned int) 0; |
1044 | else |
1045 | address = calc_hex (list); |
1046 | |
1047 | if (!((listing & LISTING_NODEBUG16) |
1048 | && debugging_pseudo (list, p))) |
1049 | print_lines (list, list->file->linenum, p, address); |
1050 | } |
1051 | } |
1052 | |
1053 | if (list->edict == EDICT_EJECT) |
1054 | eject = 1; |
1055 | } |
1056 | |
1057 | if (list->edict == EDICT_NOLIST_NEXT && show_listing == 1) |
1058 | --show_listing; |
1059 | |
1060 | list = list->next; |
1061 | } |
1062 | |
1063 | free (buffer); |
1064 | free (data_buffer); |
1065 | data_buffer = NULL((void*)0); |
1066 | } |
1067 | |
1068 | void |
1069 | listing_print (char *name) |
1070 | { |
1071 | int using_stdout; |
1072 | |
1073 | title = ""; |
1074 | subtitle = ""; |
1075 | |
1076 | if (name == NULL((void*)0)) |
1077 | { |
1078 | list_file = stdout(&__sF[1]); |
1079 | using_stdout = 1; |
1080 | } |
1081 | else |
1082 | { |
1083 | list_file = fopen (name, FOPEN_WT"w"); |
1084 | if (list_file != NULL((void*)0)) |
1085 | using_stdout = 0; |
1086 | else |
1087 | { |
1088 | bfd_set_error (bfd_error_system_call); |
1089 | as_perror (_("can't open list file: %s")("can't open list file: %s"), name); |
1090 | list_file = stdout(&__sF[1]); |
1091 | using_stdout = 1; |
1092 | } |
1093 | } |
1094 | |
1095 | if (listing & LISTING_NOFORM4) |
1096 | paper_height = 0; |
1097 | |
1098 | if (listing & LISTING_LISTING1) |
1099 | listing_listing (name); |
1100 | |
1101 | if (listing & LISTING_SYMBOLS2) |
1102 | list_symbol_table (); |
1103 | |
1104 | if (! using_stdout) |
1105 | { |
1106 | if (fclose (list_file) == EOF(-1)) |
1107 | { |
1108 | bfd_set_error (bfd_error_system_call); |
1109 | as_perror (_("error closing list file: %s")("error closing list file: %s"), name); |
1110 | } |
1111 | } |
1112 | |
1113 | if (last_open_file) |
1114 | fclose (last_open_file); |
1115 | } |
1116 | |
1117 | void |
1118 | listing_file (const char *name) |
1119 | { |
1120 | fn = name; |
1121 | } |
1122 | |
1123 | void |
1124 | listing_eject (int ignore ATTRIBUTE_UNUSED__attribute__ ((__unused__))) |
1125 | { |
1126 | if (listing) |
1127 | listing_tail->edict = EDICT_EJECT; |
1128 | } |
1129 | |
1130 | void |
1131 | listing_flags (int ignore ATTRIBUTE_UNUSED__attribute__ ((__unused__))) |
1132 | { |
1133 | while ((*input_line_pointer++) && (*input_line_pointer != '\n')) |
1134 | input_line_pointer++; |
1135 | |
1136 | } |
1137 | |
1138 | /* Turn listing on or off. An argument of 0 means to turn off |
1139 | listing. An argument of 1 means to turn on listing. An argument |
1140 | of 2 means to turn off listing, but as of the next line; that is, |
1141 | the current line should be listed, but the next line should not. */ |
1142 | |
1143 | void |
1144 | listing_list (int on) |
1145 | { |
1146 | if (listing) |
1147 | { |
1148 | switch (on) |
1149 | { |
1150 | case 0: |
1151 | if (listing_tail->edict == EDICT_LIST) |
1152 | listing_tail->edict = EDICT_NONE; |
1153 | else |
1154 | listing_tail->edict = EDICT_NOLIST; |
1155 | break; |
1156 | case 1: |
1157 | if (listing_tail->edict == EDICT_NOLIST |
1158 | || listing_tail->edict == EDICT_NOLIST_NEXT) |
1159 | listing_tail->edict = EDICT_NONE; |
1160 | else |
1161 | listing_tail->edict = EDICT_LIST; |
1162 | break; |
1163 | case 2: |
1164 | listing_tail->edict = EDICT_NOLIST_NEXT; |
1165 | break; |
1166 | default: |
1167 | abort ()as_abort ("/usr/src/gnu/usr.bin/binutils-2.17/gas/listing.c", 1167, __PRETTY_FUNCTION__); |
1168 | } |
1169 | } |
1170 | } |
1171 | |
1172 | void |
1173 | listing_psize (int width_only) |
1174 | { |
1175 | if (! width_only) |
1176 | { |
1177 | paper_height = get_absolute_expression (); |
1178 | |
1179 | if (paper_height < 0 || paper_height > 1000) |
1180 | { |
1181 | paper_height = 0; |
1182 | as_warn (_("strange paper height, set to no form")("strange paper height, set to no form")); |
1183 | } |
1184 | |
1185 | if (*input_line_pointer != ',') |
1186 | { |
1187 | demand_empty_rest_of_line (); |
1188 | return; |
1189 | } |
1190 | |
1191 | ++input_line_pointer; |
1192 | } |
1193 | |
1194 | paper_width = get_absolute_expression (); |
1195 | |
1196 | demand_empty_rest_of_line (); |
1197 | } |
1198 | |
1199 | void |
1200 | listing_nopage (int ignore ATTRIBUTE_UNUSED__attribute__ ((__unused__))) |
1201 | { |
1202 | paper_height = 0; |
1203 | } |
1204 | |
1205 | void |
1206 | listing_title (int depth) |
1207 | { |
1208 | int quoted; |
1209 | char *start; |
1210 | char *ttl; |
1211 | unsigned int length; |
1212 | |
1213 | SKIP_WHITESPACE ()((*input_line_pointer == ' ') ? ++input_line_pointer : 0); |
1214 | if (*input_line_pointer != '\"') |
1215 | quoted = 0; |
1216 | else |
1217 | { |
1218 | quoted = 1; |
1219 | ++input_line_pointer; |
1220 | } |
1221 | |
1222 | start = input_line_pointer; |
1223 | |
1224 | while (*input_line_pointer) |
1225 | { |
1226 | if (quoted |
1227 | ? *input_line_pointer == '\"' |
1228 | : is_end_of_line[(unsigned char) *input_line_pointer]) |
1229 | { |
1230 | if (listing) |
1231 | { |
1232 | length = input_line_pointer - start; |
1233 | ttl = xmalloc (length + 1); |
1234 | memcpy (ttl, start, length); |
1235 | ttl[length] = 0; |
1236 | listing_tail->edict = depth ? EDICT_SBTTL : EDICT_TITLE; |
1237 | listing_tail->edict_arg = ttl; |
1238 | } |
1239 | if (quoted) |
1240 | input_line_pointer++; |
1241 | demand_empty_rest_of_line (); |
1242 | return; |
1243 | } |
1244 | else if (*input_line_pointer == '\n') |
1245 | { |
1246 | as_bad (_("new line in title")("new line in title")); |
1247 | demand_empty_rest_of_line (); |
1248 | return; |
1249 | } |
1250 | else |
1251 | { |
1252 | input_line_pointer++; |
1253 | } |
1254 | } |
1255 | } |
1256 | |
1257 | void |
1258 | listing_source_line (unsigned int line) |
1259 | { |
1260 | if (listing) |
1261 | { |
1262 | new_frag (); |
1263 | listing_tail->hll_line = line; |
1264 | new_frag (); |
1265 | } |
1266 | } |
1267 | |
1268 | void |
1269 | listing_source_file (const char *file) |
1270 | { |
1271 | if (listing) |
1272 | listing_tail->hll_file = file_info (file); |
1273 | } |
1274 | |
1275 | #else |
1276 | |
1277 | /* Dummy functions for when compiled without listing enabled. */ |
1278 | |
1279 | void |
1280 | listing_flags (int ignore) |
1281 | { |
1282 | s_ignore (0); |
1283 | } |
1284 | |
1285 | void |
1286 | listing_list (int on) |
1287 | { |
1288 | s_ignore (0); |
1289 | } |
1290 | |
1291 | void |
1292 | listing_eject (int ignore) |
1293 | { |
1294 | s_ignore (0); |
1295 | } |
1296 | |
1297 | void |
1298 | listing_psize (int ignore) |
1299 | { |
1300 | s_ignore (0); |
1301 | } |
1302 | |
1303 | void |
1304 | listing_nopage (int ignore) |
1305 | { |
1306 | s_ignore (0); |
1307 | } |
1308 | |
1309 | void |
1310 | listing_title (int depth) |
1311 | { |
1312 | s_ignore (0); |
1313 | } |
1314 | |
1315 | void |
1316 | listing_file (const char *name) |
1317 | { |
1318 | } |
1319 | |
1320 | void |
1321 | listing_newline (char *name) |
1322 | { |
1323 | } |
1324 | |
1325 | void |
1326 | listing_source_line (unsigned int n) |
1327 | { |
1328 | } |
1329 | |
1330 | void |
1331 | listing_source_file (const char *n) |
1332 | { |
1333 | } |
1334 | |
1335 | #endif |