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[binutils.git] / gas / listing.c
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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
4 Free Software Foundation, Inc.
6 This file is part of GAS, the GNU Assembler.
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.
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.
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, 59 Temple Place - Suite 330, Boston, MA
21 02111-1307, USA. */
23 /* Contributed by Steve Chamberlain <sac@cygnus.com>
25 A listing page looks like:
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
35 If not overridden, the listing commands are:
37 .title "stuff"
38 Put "stuff" onto the title line
39 .sbttl "stuff"
40 Put stuff onto the subtitle line
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
45 .eject
46 Thow a page
47 .list
48 Increment the enable listing counter
49 .nolist
50 Decrement the enable listing counter
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
56 If the counter goes below zero, listing is suppressed.
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.
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.
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.
74 The only things which the architecture can change about the listing
75 are defined in these macros:
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
83 LISTING_LHS_WIDTH Number of words of above size for the lhs
85 LISTING_LHS_WIDTH_SECOND Number of words for the data on the lhs
86 for the second line
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. */
92 #include "as.h"
93 #include "obstack.h"
94 #include "safe-ctype.h"
95 #include "input-file.h"
96 #include "subsegs.h"
98 #ifndef NO_LISTING
100 #ifndef LISTING_HEADER
101 #define LISTING_HEADER "GAS LISTING"
102 #endif
103 #ifndef LISTING_WORD_SIZE
104 #define LISTING_WORD_SIZE 4
105 #endif
106 #ifndef LISTING_LHS_WIDTH
107 #define LISTING_LHS_WIDTH ((LISTING_WORD_SIZE) > 4 ? 1 : 4 / (LISTING_WORD_SIZE))
108 #endif
109 #ifndef LISTING_LHS_WIDTH_SECOND
110 #define LISTING_LHS_WIDTH_SECOND LISTING_LHS_WIDTH
111 #endif
112 #ifndef LISTING_RHS_WIDTH
113 #define LISTING_RHS_WIDTH 100
114 #endif
115 #ifndef LISTING_LHS_CONT_LINES
116 #define LISTING_LHS_CONT_LINES 4
117 #endif
119 /* This structure remembers which .s were used. */
120 typedef struct file_info_struct
122 struct file_info_struct * next;
123 char * filename;
124 long pos;
125 unsigned int linenum;
126 int at_end;
127 } file_info_type;
129 /* This structure remembers which line from which file goes into which
130 frag. */
131 struct list_info_struct
133 /* Frag which this line of source is nearest to. */
134 fragS *frag;
136 /* The actual line in the source file. */
137 unsigned int line;
139 /* Pointer to the file info struct for the file which this line
140 belongs to. */
141 file_info_type *file;
143 /* The expanded text of any macro that may have been executing. */
144 char *line_contents;
146 /* Next in list. */
147 struct list_info_struct *next;
149 /* Pointer to the file info struct for the high level language
150 source line that belongs here. */
151 file_info_type *hll_file;
153 /* High level language source line. */
154 unsigned int hll_line;
156 /* Pointer to any error message associated with this line. */
157 char *message;
159 enum
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;
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;
177 typedef struct list_info_struct list_info_type;
179 int listing_lhs_width = LISTING_LHS_WIDTH;
180 int listing_lhs_width_second = LISTING_LHS_WIDTH_SECOND;
181 int listing_lhs_cont_lines = LISTING_LHS_CONT_LINES;
182 int listing_rhs_width = LISTING_RHS_WIDTH;
184 struct list_info_struct * listing_tail;
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;
193 extern int listing;
195 /* File to output listings to. */
196 static FILE *list_file;
198 /* This static array is used to keep the text of data to be printed
199 before the start of the line. */
201 #define MAX_BYTES \
202 (((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width \
203 + ((((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width_second) \
204 * listing_lhs_cont_lines) \
205 + 20)
207 static char *data_buffer;
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 *);
222 static void
223 listing_message (const char *name, const char *message)
225 if (listing_tail != (list_info_type *) NULL)
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;
235 void
236 listing_warning (const char *message)
238 listing_message (_("Warning:"), message);
241 void
242 listing_error (const char *message)
244 listing_message (_("Error:"), message);
247 static file_info_type *
248 file_info (const char *file_name)
250 /* Find an entry with this file name. */
251 file_info_type *p = file_info_head;
253 while (p != (file_info_type *) NULL)
255 if (strcmp (p->filename, file_name) == 0)
256 return p;
257 p = p->next;
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;
269 return p;
272 static void
273 new_frag (void)
275 frag_wane (frag_now);
276 frag_new (0);
279 void
280 listing_newline (char *ps)
282 char *file;
283 unsigned int line;
284 static unsigned int last_line = 0xffff;
285 static char *last_file = NULL;
286 list_info_type *new = NULL;
288 if (listing == 0)
289 return;
291 if (now_seg == absolute_section)
292 return;
294 #ifdef OBJ_ELF
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_NODEBUG) != 0
300 && listing_tail != NULL
301 && ! listing_tail->debugging)
303 const char *segname;
305 segname = segment_name (now_seg);
306 if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0
307 || strncmp (segname, ".line", sizeof ".line" - 1) == 0)
308 listing_tail->debugging = 1;
310 #endif
312 as_where (&file, &line);
313 if (ps == NULL)
315 if (line == last_line
316 && !(last_file && file && strcmp (file, last_file)))
317 return;
319 new = (list_info_type *) xmalloc (sizeof (list_info_type));
321 /* Detect if we are reading from stdin by examining the file
322 name returned by as_where().
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].
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}")) == 0
333 && input_line_pointer != NULL)
335 char *copy;
336 int len;
337 int seen_quote = 0;
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;
346 len = (copy - input_line_pointer) + 2;
348 copy = xmalloc (len);
350 if (copy != NULL)
352 char *src = input_line_pointer - 1;
353 char *dest = copy;
355 while (--len)
357 unsigned char c = *src++;
359 /* Omit control characters in the listing. */
360 if (!ISCNTRL (c))
361 *dest++ = c;
364 *dest = 0;
367 new->line_contents = copy;
369 else
370 new->line_contents = NULL;
372 else
374 new = xmalloc (sizeof (list_info_type));
375 new->line_contents = ps;
378 last_line = line;
379 last_file = file;
381 new_frag ();
383 if (listing_tail)
384 listing_tail->next = new;
385 else
386 head = new;
388 listing_tail = new;
390 new->frag = frag_now;
391 new->line = line;
392 new->file = file_info (file);
393 new->next = (list_info_type *) NULL;
394 new->message = (char *) NULL;
395 new->edict = EDICT_NONE;
396 new->hll_file = (file_info_type *) NULL;
397 new->hll_line = 0;
398 new->debugging = 0;
400 new_frag ();
402 #ifdef OBJ_ELF
403 /* In ELF, anything in a section beginning with .debug or .line is
404 considered to be debugging information. */
405 if ((listing & LISTING_NODEBUG) != 0)
407 const char *segname;
409 segname = segment_name (now_seg);
410 if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0
411 || strncmp (segname, ".line", sizeof ".line" - 1) == 0)
412 new->debugging = 1;
414 #endif
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. */
423 void
424 listing_prev_line (void)
426 list_info_type *l;
427 fragS *f;
429 if (head == (list_info_type *) NULL
430 || head == listing_tail)
431 return;
433 new_frag ();
435 for (l = head; l->next != listing_tail; l = l->next)
438 for (f = frchain_now->frch_root; f != (fragS *) NULL; f = f->fr_next)
439 if (f->line == listing_tail)
440 f->line = l;
442 listing_tail->frag = frag_now;
443 new_frag ();
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. */
450 static char *
451 buffer_line (file_info_type *file, char *line, unsigned int size)
453 unsigned int count = 0;
454 int c;
456 char *p = line;
458 /* If we couldn't open the file, return an empty line. */
459 if (file->at_end)
460 return "";
462 /* Check the cache and see if we last used this file. */
463 if (!last_open_file_info || file != last_open_file_info)
465 if (last_open_file)
467 last_open_file_info->pos = ftell (last_open_file);
468 fclose (last_open_file);
471 last_open_file_info = file;
472 last_open_file = fopen (file->filename, FOPEN_RT);
473 if (last_open_file == NULL)
475 file->at_end = 1;
476 return "";
479 /* Seek to where we were last time this file was open. */
480 if (file->pos)
481 fseek (last_open_file, file->pos, SEEK_SET);
484 c = fgetc (last_open_file);
486 /* Leave room for null. */
487 size -= 1;
489 while (c != EOF && c != '\n')
491 if (count < size)
492 *p++ = c;
493 count++;
495 c = fgetc (last_open_file);
498 if (c == EOF)
500 file->at_end = 1;
501 if (count + 2 < size)
503 *p++ = '.';
504 *p++ = '.';
505 *p++ = '.';
508 file->linenum++;
509 *p++ = 0;
510 return line;
513 static const char *fn;
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 */
521 static void
522 listing_page (list_info_type *list)
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)
529 unsigned int c = 10;
530 int had_title = 0;
531 int had_subtitle = 0;
533 page++;
535 while (c != 0 && list)
537 if (list->edict == EDICT_SBTTL && !had_subtitle)
539 had_subtitle = 1;
540 subtitle = list->edict_arg;
542 if (list->edict == EDICT_TITLE && !had_title)
544 had_title = 1;
545 title = list->edict_arg;
547 list = list->next;
548 c--;
551 if (page > 1)
553 fprintf (list_file, "\f");
556 fprintf (list_file, "%s %s \t\t\tpage %d\n", LISTING_HEADER, fn, page);
557 fprintf (list_file, "%s\n", title);
558 fprintf (list_file, "%s\n", subtitle);
559 on_page = 3;
560 eject = 0;
564 static unsigned int
565 calc_hex (list_info_type *list)
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;
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;
579 frag_ptr = frag;
581 data_buffer_size = 0;
583 /* Dump all the frags which belong to this line. */
584 while (frag_ptr != (fragS *) NULL && frag_ptr->line == first)
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 - 3)
591 if (address == ~(unsigned int) 0)
592 address = frag_ptr->fr_address / OCTETS_PER_BYTE;
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++;
600 if (frag_ptr->fr_type == rs_fill)
602 unsigned int var_rep_max = octet_in_frag;
603 unsigned int var_rep_idx = octet_in_frag;
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 - 3)
610 if (address == ~(unsigned int) 0)
611 address = frag_ptr->fr_address / OCTETS_PER_BYTE;
613 sprintf (data_buffer + data_buffer_size,
614 "%02X",
615 (frag_ptr->fr_literal[var_rep_idx]) & 0xff);
616 #if 0
617 data_buffer[data_buffer_size++] = '*';
618 data_buffer[data_buffer_size++] = '*';
619 #endif
620 data_buffer_size += 2;
622 var_rep_idx++;
623 octet_in_frag++;
625 if ((offsetT) var_rep_idx >= frag_ptr->fr_fix + frag_ptr->fr_var)
626 var_rep_idx = var_rep_max;
630 frag_ptr = frag_ptr->fr_next;
632 data_buffer[data_buffer_size] = '\0';
633 return address;
636 static void
637 print_lines (list_info_type *list, unsigned int lineno,
638 char *string, unsigned int address)
640 unsigned int idx;
641 unsigned int nchars;
642 unsigned int lines;
643 unsigned int octet_in_word = 0;
644 char *src = data_buffer;
645 int cur;
647 /* Print the stuff on the first line. */
648 listing_page (list);
649 nchars = (LISTING_WORD_SIZE * 2 + 1) * listing_lhs_width;
651 /* Print the hex for the first line. */
652 if (address == ~(unsigned int) 0)
654 fprintf (list_file, "% 4d ", lineno);
655 for (idx = 0; idx < nchars; idx++)
656 fprintf (list_file, " ");
658 fprintf (list_file, "\t%s\n", string ? string : "");
660 on_page++;
662 listing_page (0);
664 return;
667 if (had_errors ())
668 fprintf (list_file, "% 4d ???? ", lineno);
669 else
670 fprintf (list_file, "% 4d %04x ", lineno, address);
672 /* And the data to go along with it. */
673 idx = 0;
674 cur = 0;
675 while (src[cur] && idx < nchars)
677 int offset;
678 offset = cur;
679 fprintf (list_file, "%c%c", src[offset], src[offset + 1]);
680 cur += 2;
681 octet_in_word++;
683 if (octet_in_word == LISTING_WORD_SIZE)
685 fprintf (list_file, " ");
686 idx++;
687 octet_in_word = 0;
690 idx += 2;
693 for (; idx < nchars; idx++)
694 fprintf (list_file, " ");
696 fprintf (list_file, "\t%s\n", string ? string : "");
697 on_page++;
698 listing_page (list);
700 if (list->message)
702 fprintf (list_file, "**** %s\n", list->message);
703 listing_page (list);
704 on_page++;
707 for (lines = 0;
708 lines < (unsigned int) listing_lhs_cont_lines
709 && src[cur];
710 lines++)
712 nchars = ((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width_second - 1;
713 idx = 0;
715 /* Print any more lines of data, but more compactly. */
716 fprintf (list_file, "% 4d ", lineno);
718 while (src[cur] && idx < nchars)
720 int offset;
721 offset = cur;
722 fprintf (list_file, "%c%c", src[offset], src[offset + 1]);
723 cur += 2;
724 idx += 2;
725 octet_in_word++;
727 if (octet_in_word == LISTING_WORD_SIZE)
729 fprintf (list_file, " ");
730 idx++;
731 octet_in_word = 0;
735 fprintf (list_file, "\n");
736 on_page++;
737 listing_page (list);
741 static void
742 list_symbol_table (void)
744 extern symbolS *symbol_rootP;
745 int got_some = 0;
747 symbolS *ptr;
748 eject = 1;
749 listing_page (0);
751 for (ptr = symbol_rootP; ptr != (symbolS *) NULL; ptr = symbol_next (ptr))
753 if (SEG_NORMAL (S_GET_SEGMENT (ptr))
754 || S_GET_SEGMENT (ptr) == absolute_section)
756 #ifdef BFD_ASSEMBLER
757 /* Don't report section symbols. They are not interesting. */
758 if (symbol_section_p (ptr))
759 continue;
760 #endif
761 if (S_GET_NAME (ptr))
763 char buf[30], fmt[8];
764 valueT val = S_GET_VALUE (ptr);
766 /* @@ Note that this is dependent on the compilation options,
767 not solely on the target characteristics. */
768 if (sizeof (val) == 4 && sizeof (int) == 4)
769 sprintf (buf, "%08lx", (unsigned long) val);
770 else if (sizeof (val) <= sizeof (unsigned long))
772 sprintf (fmt, "%%0%lulx",
773 (unsigned long) (sizeof (val) * 2));
774 sprintf (buf, fmt, (unsigned long) val);
776 #if defined (BFD64)
777 else if (sizeof (val) > 4)
778 sprintf_vma (buf, val);
779 #endif
780 else
781 abort ();
783 if (!got_some)
785 fprintf (list_file, "DEFINED SYMBOLS\n");
786 on_page++;
787 got_some = 1;
790 if (symbol_get_frag (ptr) && symbol_get_frag (ptr)->line)
792 fprintf (list_file, "%20s:%-5d %s:%s %s\n",
793 symbol_get_frag (ptr)->line->file->filename,
794 symbol_get_frag (ptr)->line->line,
795 segment_name (S_GET_SEGMENT (ptr)),
796 buf, S_GET_NAME (ptr));
798 else
800 fprintf (list_file, "%33s:%s %s\n",
801 segment_name (S_GET_SEGMENT (ptr)),
802 buf, S_GET_NAME (ptr));
805 on_page++;
806 listing_page (0);
811 if (!got_some)
813 fprintf (list_file, "NO DEFINED SYMBOLS\n");
814 on_page++;
816 fprintf (list_file, "\n");
817 on_page++;
818 listing_page (0);
820 got_some = 0;
822 for (ptr = symbol_rootP; ptr != (symbolS *) NULL; ptr = symbol_next (ptr))
824 if (S_GET_NAME (ptr) && strlen (S_GET_NAME (ptr)) != 0)
826 if (S_GET_SEGMENT (ptr) == undefined_section)
828 if (!got_some)
830 got_some = 1;
831 fprintf (list_file, "UNDEFINED SYMBOLS\n");
832 on_page++;
833 listing_page (0);
835 fprintf (list_file, "%s\n", S_GET_NAME (ptr));
836 on_page++;
837 listing_page (0);
841 if (!got_some)
843 fprintf (list_file, "NO UNDEFINED SYMBOLS\n");
844 on_page++;
845 listing_page (0);
849 static void
850 print_source (file_info_type *current_file, list_info_type *list,
851 char *buffer, unsigned int width)
853 if (!current_file->at_end)
855 while (current_file->linenum < list->hll_line
856 && !current_file->at_end)
858 char *p = buffer_line (current_file, buffer, width);
860 fprintf (list_file, "%4u:%-13s **** %s\n", current_file->linenum,
861 current_file->filename, p);
862 on_page++;
863 listing_page (list);
868 /* Sometimes the user doesn't want to be bothered by the debugging
869 records inserted by the compiler, see if the line is suspicious. */
871 static int
872 debugging_pseudo (list_info_type *list, const char *line)
874 static int in_debug;
875 int was_debug;
877 if (list->debugging)
879 in_debug = 1;
880 return 1;
883 was_debug = in_debug;
884 in_debug = 0;
886 while (ISSPACE (*line))
887 line++;
889 if (*line != '.')
891 #ifdef OBJ_ELF
892 /* The ELF compiler sometimes emits blank lines after switching
893 out of a debugging section. If the next line drops us back
894 into debugging information, then don't print the blank line.
895 This is a hack for a particular compiler behaviour, not a
896 general case. */
897 if (was_debug
898 && *line == '\0'
899 && list->next != NULL
900 && list->next->debugging)
902 in_debug = 1;
903 return 1;
905 #endif
907 return 0;
910 line++;
912 if (strncmp (line, "def", 3) == 0)
913 return 1;
914 if (strncmp (line, "val", 3) == 0)
915 return 1;
916 if (strncmp (line, "scl", 3) == 0)
917 return 1;
918 if (strncmp (line, "line", 4) == 0)
919 return 1;
920 if (strncmp (line, "endef", 5) == 0)
921 return 1;
922 if (strncmp (line, "ln", 2) == 0)
923 return 1;
924 if (strncmp (line, "type", 4) == 0)
925 return 1;
926 if (strncmp (line, "size", 4) == 0)
927 return 1;
928 if (strncmp (line, "dim", 3) == 0)
929 return 1;
930 if (strncmp (line, "tag", 3) == 0)
931 return 1;
932 if (strncmp (line, "stabs", 5) == 0)
933 return 1;
934 if (strncmp (line, "stabn", 5) == 0)
935 return 1;
937 return 0;
940 static void
941 listing_listing (char *name ATTRIBUTE_UNUSED)
943 list_info_type *list = head;
944 file_info_type *current_hll_file = (file_info_type *) NULL;
945 char *message;
946 char *buffer;
947 char *p;
948 int show_listing = 1;
949 unsigned int width;
951 buffer = xmalloc (listing_rhs_width);
952 data_buffer = xmalloc (MAX_BYTES);
953 eject = 1;
954 list = head;
956 while (list != (list_info_type *) NULL && 0)
958 if (list->next)
959 list->frag = list->next->frag;
960 list = list->next;
963 list = head->next;
965 while (list)
967 unsigned int list_line;
969 width = listing_rhs_width > paper_width ? paper_width :
970 listing_rhs_width;
972 list_line = list->line;
973 switch (list->edict)
975 case EDICT_LIST:
976 /* Skip all lines up to the current. */
977 list_line--;
978 break;
979 case EDICT_NOLIST:
980 show_listing--;
981 break;
982 case EDICT_NOLIST_NEXT:
983 if (show_listing == 0)
984 list_line--;
985 break;
986 case EDICT_EJECT:
987 break;
988 case EDICT_NONE:
989 break;
990 case EDICT_TITLE:
991 title = list->edict_arg;
992 break;
993 case EDICT_SBTTL:
994 subtitle = list->edict_arg;
995 break;
996 default:
997 abort ();
1000 if (show_listing <= 0)
1002 while (list->file->linenum < list_line
1003 && !list->file->at_end)
1004 p = buffer_line (list->file, buffer, width);
1007 if (list->edict == EDICT_LIST
1008 || (list->edict == EDICT_NOLIST_NEXT && show_listing == 0))
1010 /* Enable listing for the single line that caused the enable. */
1011 list_line++;
1012 show_listing++;
1015 if (show_listing > 0)
1017 /* Scan down the list and print all the stuff which can be done
1018 with this line (or lines). */
1019 message = 0;
1021 if (list->hll_file)
1022 current_hll_file = list->hll_file;
1024 if (current_hll_file && list->hll_line && (listing & LISTING_HLL))
1025 print_source (current_hll_file, list, buffer, width);
1027 if (list->line_contents)
1029 if (!((listing & LISTING_NODEBUG)
1030 && debugging_pseudo (list, list->line_contents)))
1031 print_lines (list,
1032 list->file->linenum == 0 ? list->line : list->file->linenum,
1033 list->line_contents, calc_hex (list));
1035 free (list->line_contents);
1036 list->line_contents = NULL;
1038 else
1040 while (list->file->linenum < list_line
1041 && !list->file->at_end)
1043 unsigned int address;
1045 p = buffer_line (list->file, buffer, width);
1047 if (list->file->linenum < list_line)
1048 address = ~(unsigned int) 0;
1049 else
1050 address = calc_hex (list);
1052 if (!((listing & LISTING_NODEBUG)
1053 && debugging_pseudo (list, p)))
1054 print_lines (list, list->file->linenum, p, address);
1058 if (list->edict == EDICT_EJECT)
1059 eject = 1;
1062 if (list->edict == EDICT_NOLIST_NEXT && show_listing == 1)
1063 --show_listing;
1065 list = list->next;
1068 free (buffer);
1069 free (data_buffer);
1070 data_buffer = NULL;
1073 void
1074 listing_print (char *name)
1076 int using_stdout;
1078 title = "";
1079 subtitle = "";
1081 if (name == NULL)
1083 list_file = stdout;
1084 using_stdout = 1;
1086 else
1088 list_file = fopen (name, FOPEN_WT);
1089 if (list_file != NULL)
1090 using_stdout = 0;
1091 else
1093 #ifdef BFD_ASSEMBLER
1094 bfd_set_error (bfd_error_system_call);
1095 #endif
1096 as_perror (_("can't open list file: %s"), name);
1097 list_file = stdout;
1098 using_stdout = 1;
1102 if (listing & LISTING_NOFORM)
1103 paper_height = 0;
1105 if (listing & LISTING_LISTING)
1106 listing_listing (name);
1108 if (listing & LISTING_SYMBOLS)
1109 list_symbol_table ();
1111 if (! using_stdout)
1113 if (fclose (list_file) == EOF)
1115 #ifdef BFD_ASSEMBLER
1116 bfd_set_error (bfd_error_system_call);
1117 #endif
1118 as_perror (_("error closing list file: %s"), name);
1122 if (last_open_file)
1123 fclose (last_open_file);
1126 void
1127 listing_file (const char *name)
1129 fn = name;
1132 void
1133 listing_eject (int ignore ATTRIBUTE_UNUSED)
1135 if (listing)
1136 listing_tail->edict = EDICT_EJECT;
1139 void
1140 listing_flags (int ignore ATTRIBUTE_UNUSED)
1142 while ((*input_line_pointer++) && (*input_line_pointer != '\n'))
1143 input_line_pointer++;
1147 /* Turn listing on or off. An argument of 0 means to turn off
1148 listing. An argument of 1 means to turn on listing. An argument
1149 of 2 means to turn off listing, but as of the next line; that is,
1150 the current line should be listed, but the next line should not. */
1152 void
1153 listing_list (int on)
1155 if (listing)
1157 switch (on)
1159 case 0:
1160 if (listing_tail->edict == EDICT_LIST)
1161 listing_tail->edict = EDICT_NONE;
1162 else
1163 listing_tail->edict = EDICT_NOLIST;
1164 break;
1165 case 1:
1166 if (listing_tail->edict == EDICT_NOLIST
1167 || listing_tail->edict == EDICT_NOLIST_NEXT)
1168 listing_tail->edict = EDICT_NONE;
1169 else
1170 listing_tail->edict = EDICT_LIST;
1171 break;
1172 case 2:
1173 listing_tail->edict = EDICT_NOLIST_NEXT;
1174 break;
1175 default:
1176 abort ();
1181 void
1182 listing_psize (int width_only)
1184 if (! width_only)
1186 paper_height = get_absolute_expression ();
1188 if (paper_height < 0 || paper_height > 1000)
1190 paper_height = 0;
1191 as_warn (_("strange paper height, set to no form"));
1194 if (*input_line_pointer != ',')
1196 demand_empty_rest_of_line ();
1197 return;
1200 ++input_line_pointer;
1203 paper_width = get_absolute_expression ();
1205 demand_empty_rest_of_line ();
1208 void
1209 listing_nopage (int ignore ATTRIBUTE_UNUSED)
1211 paper_height = 0;
1214 void
1215 listing_title (int depth)
1217 int quoted;
1218 char *start;
1219 char *ttl;
1220 unsigned int length;
1222 SKIP_WHITESPACE ();
1223 if (*input_line_pointer != '\"')
1224 quoted = 0;
1225 else
1227 quoted = 1;
1228 ++input_line_pointer;
1231 start = input_line_pointer;
1233 while (*input_line_pointer)
1235 if (quoted
1236 ? *input_line_pointer == '\"'
1237 : is_end_of_line[(unsigned char) *input_line_pointer])
1239 if (listing)
1241 length = input_line_pointer - start;
1242 ttl = xmalloc (length + 1);
1243 memcpy (ttl, start, length);
1244 ttl[length] = 0;
1245 listing_tail->edict = depth ? EDICT_SBTTL : EDICT_TITLE;
1246 listing_tail->edict_arg = ttl;
1248 if (quoted)
1249 input_line_pointer++;
1250 demand_empty_rest_of_line ();
1251 return;
1253 else if (*input_line_pointer == '\n')
1255 as_bad (_("new line in title"));
1256 demand_empty_rest_of_line ();
1257 return;
1259 else
1261 input_line_pointer++;
1266 void
1267 listing_source_line (unsigned int line)
1269 if (listing)
1271 new_frag ();
1272 listing_tail->hll_line = line;
1273 new_frag ();
1277 void
1278 listing_source_file (const char *file)
1280 if (listing)
1281 listing_tail->hll_file = file_info (file);
1284 #else
1286 /* Dummy functions for when compiled without listing enabled. */
1288 void
1289 listing_flags (int ignore)
1291 s_ignore (0);
1294 void
1295 listing_list (int on)
1297 s_ignore (0);
1300 void
1301 listing_eject (int ignore)
1303 s_ignore (0);
1306 void
1307 listing_psize (int ignore)
1309 s_ignore (0);
1312 void
1313 listing_nopage (int ignore)
1315 s_ignore (0);
1318 void
1319 listing_title (int depth)
1321 s_ignore (0);
1324 void
1325 listing_file (const char *name)
1329 void
1330 listing_newline (char *name)
1334 void
1335 listing_source_line (unsigned int n)
1339 void
1340 listing_source_file (const char *n)
1344 #endif