1 /* coff object file format
2 Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
3 Free Software Foundation, Inc.
5 This file is part of GAS.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 #define OBJ_HEADER "obj-coff.h"
28 /* I think this is probably always correct. */
29 #ifndef KEEP_RELOC_INFO
30 #define KEEP_RELOC_INFO
33 /* The BFD_ASSEMBLER version of obj_coff_section will use this macro to set
34 a new section's attributes when a directive has no valid flags or the
35 "w" flag is used. This default should be appropriate for most. */
36 #ifndef TC_COFF_SECTION_DEFAULT_ATTRIBUTES
37 #define TC_COFF_SECTION_DEFAULT_ATTRIBUTES (SEC_LOAD | SEC_DATA)
40 static void obj_coff_bss PARAMS ((int));
41 const char *s_get_name PARAMS ((symbolS * s));
42 static void obj_coff_ln PARAMS ((int));
43 static void obj_coff_def PARAMS ((int));
44 static void obj_coff_endef PARAMS ((int));
45 static void obj_coff_dim PARAMS ((int));
46 static void obj_coff_line PARAMS ((int));
47 static void obj_coff_size PARAMS ((int));
48 static void obj_coff_scl PARAMS ((int));
49 static void obj_coff_tag PARAMS ((int));
50 static void obj_coff_val PARAMS ((int));
51 static void obj_coff_type PARAMS ((int));
52 static void obj_coff_ident PARAMS ((int));
54 static void obj_coff_loc PARAMS((int));
57 /* This is used to hold the symbol built by a sequence of pseudo-ops
58 from .def and .endef. */
59 static symbolS *def_symbol_in_progress;
64 unsigned long chunk_size;
65 unsigned long element_size;
68 unsigned long pointer;
73 stack_init (chunk_size, element_size)
74 unsigned long chunk_size;
75 unsigned long element_size;
79 st = (stack *) malloc (sizeof (stack));
82 st->data = malloc (chunk_size);
89 st->size = chunk_size;
90 st->chunk_size = chunk_size;
91 st->element_size = element_size;
96 /* Not currently used. */
107 stack_push (st, element)
111 if (st->pointer + st->element_size >= st->size)
113 st->size += st->chunk_size;
114 if ((st->data = xrealloc (st->data, st->size)) == (char *) 0)
117 memcpy (st->data + st->pointer, element, st->element_size);
118 st->pointer += st->element_size;
119 return st->data + st->pointer;
126 if (st->pointer < st->element_size)
131 st->pointer -= st->element_size;
132 return st->data + st->pointer;
136 * Maintain a list of the tagnames of the structres.
139 static struct hash_control *tag_hash;
144 tag_hash = hash_new ();
148 tag_insert (name, symbolP)
152 const char *error_string;
154 if ((error_string = hash_jam (tag_hash, name, (char *) symbolP)))
156 as_fatal (_("Inserting \"%s\" into structure table failed: %s"),
165 #ifdef STRIP_UNDERSCORE
168 #endif /* STRIP_UNDERSCORE */
169 return (symbolS *) hash_find (tag_hash, name);
173 tag_find_or_make (name)
178 if ((symbolP = tag_find (name)) == NULL)
180 symbolP = symbol_new (name, undefined_section,
181 0, &zero_address_frag);
183 tag_insert (S_GET_NAME (symbolP), symbolP);
185 symbol_table_insert (symbolP);
192 /* We accept the .bss directive to set the section for backward
193 compatibility with earlier versions of gas. */
196 obj_coff_bss (ignore)
197 int ignore ATTRIBUTE_UNUSED;
199 if (*input_line_pointer == '\n')
200 subseg_new (".bss", get_absolute_expression ());
205 /* Handle .weak. This is a GNU extension. */
208 obj_coff_weak (ignore)
209 int ignore ATTRIBUTE_UNUSED;
217 name = input_line_pointer;
218 c = get_symbol_end ();
219 symbolP = symbol_find_or_make (name);
220 *input_line_pointer = c;
224 S_SET_WEAK (symbolP);
228 S_SET_STORAGE_CLASS (symbolP, C_NT_WEAK);
230 S_SET_STORAGE_CLASS (symbolP, C_WEAKEXT);
235 input_line_pointer++;
237 if (*input_line_pointer == '\n')
243 demand_empty_rest_of_line ();
248 static void SA_SET_SYM_TAGNDX PARAMS ((symbolS *, symbolS *));
250 #define GET_FILENAME_STRING(X) \
251 ((char*)(&((X)->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1])
255 fetch_coff_debug_section ()
257 static segT debug_section;
261 s = bfd_make_debug_symbol (stdoutput, (char *) 0, 0);
263 debug_section = s->section;
265 return debug_section;
269 SA_SET_SYM_ENDNDX (sym, val)
273 combined_entry_type *entry, *p;
275 entry = &coffsymbol (symbol_get_bfdsym (sym))->native[1];
276 p = coffsymbol (symbol_get_bfdsym (val))->native;
277 entry->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = p;
282 SA_SET_SYM_TAGNDX (sym, val)
286 combined_entry_type *entry, *p;
288 entry = &coffsymbol (symbol_get_bfdsym (sym))->native[1];
289 p = coffsymbol (symbol_get_bfdsym (val))->native;
290 entry->u.auxent.x_sym.x_tagndx.p = p;
295 S_GET_DATA_TYPE (sym)
298 return coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_type;
302 S_SET_DATA_TYPE (sym, val)
306 coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_type = val;
311 S_GET_STORAGE_CLASS (sym)
314 return coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_sclass;
318 S_SET_STORAGE_CLASS (sym, val)
322 coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_sclass = val;
326 /* Merge a debug symbol containing debug information into a normal symbol. */
329 c_symbol_merge (debug, normal)
333 S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug));
334 S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug));
336 if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal))
338 /* take the most we have */
339 S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug));
342 if (S_GET_NUMBER_AUXILIARY (debug) > 0)
344 /* Move all the auxiliary information. */
345 memcpy (SYM_AUXINFO (normal), SYM_AUXINFO (debug),
346 (S_GET_NUMBER_AUXILIARY (debug)
347 * sizeof (*SYM_AUXINFO (debug))));
350 /* Move the debug flags. */
351 SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug));
355 c_dot_file_symbol (filename)
356 const char *filename;
360 /* BFD converts filename to a .file symbol with an aux entry. It
361 also handles chaining. */
362 symbolP = symbol_new (filename, bfd_abs_section_ptr, 0, &zero_address_frag);
364 S_SET_STORAGE_CLASS (symbolP, C_FILE);
365 S_SET_NUMBER_AUXILIARY (symbolP, 1);
367 symbol_get_bfdsym (symbolP)->flags = BSF_DEBUGGING;
374 listing_source_file (filename);
379 /* Make sure that the symbol is first on the symbol chain */
380 if (symbol_rootP != symbolP)
382 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
383 symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP);
384 } /* if not first on the list */
387 /* Line number handling */
390 struct line_no *next;
397 /* Symbol of last function, which we should hang line#s off of. */
398 static symbolS *line_fsym;
400 #define in_function() (line_fsym != 0)
401 #define clear_function() (line_fsym = 0)
402 #define set_function(F) (line_fsym = (F), coff_add_linesym (F))
406 coff_obj_symbol_new_hook (symbolP)
409 long sz = (OBJ_COFF_MAX_AUXENTRIES + 1) * sizeof (combined_entry_type);
410 char * s = (char *) xmalloc (sz);
413 coffsymbol (symbol_get_bfdsym (symbolP))->native = (combined_entry_type *) s;
415 S_SET_DATA_TYPE (symbolP, T_NULL);
416 S_SET_STORAGE_CLASS (symbolP, 0);
417 S_SET_NUMBER_AUXILIARY (symbolP, 0);
419 if (S_IS_STRING (symbolP))
420 SF_SET_STRING (symbolP);
422 if (S_IS_LOCAL (symbolP))
423 SF_SET_LOCAL (symbolP);
428 * Handle .ln directives.
431 static symbolS *current_lineno_sym;
432 static struct line_no *line_nos;
433 /* @@ Blindly assume all .ln directives will be in the .text section... */
437 add_lineno (frag, offset, num)
442 struct line_no *new_line =
443 (struct line_no *) xmalloc (sizeof (struct line_no));
444 if (!current_lineno_sym)
450 /* Zero is used as an end marker in the file. */
451 as_warn (_("Line numbers must be positive integers\n"));
454 new_line->next = line_nos;
455 new_line->frag = frag;
456 new_line->l.line_number = num;
457 new_line->l.u.offset = offset;
463 coff_add_linesym (sym)
468 coffsymbol (symbol_get_bfdsym (current_lineno_sym))->lineno =
473 current_lineno_sym = sym;
477 obj_coff_ln (appline)
482 if (! appline && def_symbol_in_progress != NULL)
484 as_warn (_(".ln pseudo-op inside .def/.endef: ignored."));
485 demand_empty_rest_of_line ();
489 l = get_absolute_expression ();
492 add_lineno (frag_now, frag_now_fix (), l);
496 new_logical_line ((char *) NULL, l - 1);
505 l += coff_line_base - 1;
506 listing_source_line (l);
511 demand_empty_rest_of_line ();
514 /* .loc is essentially the same as .ln; parse it for assembler
518 obj_coff_loc (ignore)
519 int ignore ATTRIBUTE_UNUSED;
523 /* FIXME: Why do we need this check? We need it for ECOFF, but why
524 do we need it for COFF? */
525 if (now_seg != text_section)
527 as_warn (_(".loc outside of .text"));
528 demand_empty_rest_of_line ();
532 if (def_symbol_in_progress != NULL)
534 as_warn (_(".loc pseudo-op inside .def/.endef: ignored."));
535 demand_empty_rest_of_line ();
539 /* Skip the file number. */
541 get_absolute_expression ();
544 lineno = get_absolute_expression ();
552 lineno += coff_line_base - 1;
553 listing_source_line (lineno);
558 demand_empty_rest_of_line ();
560 add_lineno (frag_now, frag_now_fix (), lineno);
563 /* Handle the .ident pseudo-op. */
566 obj_coff_ident (ignore)
567 int ignore ATTRIBUTE_UNUSED;
569 segT current_seg = now_seg;
570 subsegT current_subseg = now_subseg;
576 /* We could put it in .comment, but that creates an extra section
577 that shouldn't be loaded into memory, which requires linker
578 changes... For now, until proven otherwise, use .rdata. */
579 sec = subseg_new (".rdata$zzz", 0);
580 bfd_set_section_flags (stdoutput, sec,
581 ((SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA)
582 & bfd_applicable_section_flags (stdoutput)));
585 subseg_new (".comment", 0);
589 subseg_set (current_seg, current_subseg);
595 * Handle .def directives.
597 * One might ask : why can't we symbol_new if the symbol does not
598 * already exist and fill it with debug information. Because of
599 * the C_EFCN special symbol. It would clobber the value of the
600 * function symbol before we have a chance to notice that it is
601 * a C_EFCN. And a second reason is that the code is more clear this
602 * way. (at least I think it is :-).
606 #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';')
607 #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \
608 *input_line_pointer == '\t') \
609 input_line_pointer++;
613 int what ATTRIBUTE_UNUSED;
615 char name_end; /* Char after the end of name */
616 char *symbol_name; /* Name of the debug symbol */
617 char *symbol_name_copy; /* Temporary copy of the name */
618 unsigned int symbol_name_length;
620 if (def_symbol_in_progress != NULL)
622 as_warn (_(".def pseudo-op used inside of .def/.endef: ignored."));
623 demand_empty_rest_of_line ();
625 } /* if not inside .def/.endef */
629 symbol_name = input_line_pointer;
630 #ifdef STRIP_UNDERSCORE
631 if (symbol_name[0] == '_' && symbol_name[1] != 0)
633 #endif /* STRIP_UNDERSCORE */
635 name_end = get_symbol_end ();
636 symbol_name_length = strlen (symbol_name);
637 symbol_name_copy = xmalloc (symbol_name_length + 1);
638 strcpy (symbol_name_copy, symbol_name);
639 #ifdef tc_canonicalize_symbol_name
640 symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy);
643 /* Initialize the new symbol */
644 def_symbol_in_progress = symbol_make (symbol_name_copy);
645 symbol_set_frag (def_symbol_in_progress, &zero_address_frag);
646 S_SET_VALUE (def_symbol_in_progress, 0);
648 if (S_IS_STRING (def_symbol_in_progress))
649 SF_SET_STRING (def_symbol_in_progress);
651 *input_line_pointer = name_end;
653 demand_empty_rest_of_line ();
656 unsigned int dim_index;
659 obj_coff_endef (ignore)
660 int ignore ATTRIBUTE_UNUSED;
662 symbolS *symbolP = NULL;
664 /* DIM BUG FIX sac@cygnus.com */
666 if (def_symbol_in_progress == NULL)
668 as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored."));
669 demand_empty_rest_of_line ();
671 } /* if not inside .def/.endef */
673 /* Set the section number according to storage class. */
674 switch (S_GET_STORAGE_CLASS (def_symbol_in_progress))
679 SF_SET_TAG (def_symbol_in_progress);
680 /* intentional fallthrough */
683 SF_SET_DEBUG (def_symbol_in_progress);
684 S_SET_SEGMENT (def_symbol_in_progress, fetch_coff_debug_section ());
688 SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */
689 /* intentional fallthrough */
691 SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */
692 /* intentional fallthrough */
696 S_SET_SEGMENT (def_symbol_in_progress, text_section);
698 name = S_GET_NAME (def_symbol_in_progress);
699 if (name[0] == '.' && name[2] == 'f' && name[3] == '\0')
705 if (! in_function ())
706 as_warn (_("`%s' symbol without preceding function"), name);
707 /* Will need relocating. */
708 SF_SET_PROCESS (def_symbol_in_progress);
714 /* The MS compilers output the actual endline, not the
715 function-relative one... we want to match without
716 changing the assembler input. */
717 SA_SET_SYM_LNNO (def_symbol_in_progress,
718 (SA_GET_SYM_LNNO (def_symbol_in_progress)
729 #endif /* C_AUTOARG */
735 SF_SET_DEBUG (def_symbol_in_progress);
736 S_SET_SEGMENT (def_symbol_in_progress, absolute_section);
743 S_SET_SEGMENT (def_symbol_in_progress, absolute_section);
753 /* Valid but set somewhere else (s_comm, s_lcomm, colon) */
760 as_warn (_("unexpected storage class %d"),
761 S_GET_STORAGE_CLASS (def_symbol_in_progress));
763 } /* switch on storage class */
765 /* Now that we have built a debug symbol, try to find if we should
766 merge with an existing symbol or not. If a symbol is C_EFCN or
767 absolute_section or untagged SEG_DEBUG it never merges. We also
768 don't merge labels, which are in a different namespace, nor
769 symbols which have not yet been defined since they are typically
770 unique, nor do we merge tags with non-tags. */
772 /* Two cases for functions. Either debug followed by definition or
773 definition followed by debug. For definition first, we will
774 merge the debug symbol into the definition. For debug first, the
775 lineno entry MUST point to the definition function or else it
776 will point off into space when obj_crawl_symbol_chain() merges
777 the debug symbol into the real symbol. Therefor, let's presume
778 the debug symbol is a real function reference. */
780 /* FIXME-SOON If for some reason the definition label/symbol is
781 never seen, this will probably leave an undefined symbol at link
784 if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN
785 || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL
786 || (!strcmp (bfd_get_section_name (stdoutput,
787 S_GET_SEGMENT (def_symbol_in_progress)),
789 && !SF_GET_TAG (def_symbol_in_progress))
790 || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section
791 || ! symbol_constant_p (def_symbol_in_progress)
792 || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress),
793 DO_NOT_STRIP)) == NULL
794 || SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP))
796 /* If it already is at the end of the symbol list, do nothing */
797 if (def_symbol_in_progress != symbol_lastP)
799 symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP);
800 symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP,
806 /* This symbol already exists, merge the newly created symbol
807 into the old one. This is not mandatory. The linker can
808 handle duplicate symbols correctly. But I guess that it save
809 a *lot* of space if the assembly file defines a lot of
812 /* The debug entry (def_symbol_in_progress) is merged into the
813 previous definition. */
815 c_symbol_merge (def_symbol_in_progress, symbolP);
816 symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP);
818 def_symbol_in_progress = symbolP;
820 if (SF_GET_FUNCTION (def_symbol_in_progress)
821 || SF_GET_TAG (def_symbol_in_progress)
822 || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT)
824 /* For functions, and tags, and static symbols, the symbol
825 *must* be where the debug symbol appears. Move the
826 existing symbol to the current place. */
827 /* If it already is at the end of the symbol list, do nothing */
828 if (def_symbol_in_progress != symbol_lastP)
830 symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP);
831 symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP);
836 if (SF_GET_TAG (def_symbol_in_progress))
840 oldtag = symbol_find_base (S_GET_NAME (def_symbol_in_progress),
842 if (oldtag == NULL || ! SF_GET_TAG (oldtag))
843 tag_insert (S_GET_NAME (def_symbol_in_progress),
844 def_symbol_in_progress);
847 if (SF_GET_FUNCTION (def_symbol_in_progress))
849 know (sizeof (def_symbol_in_progress) <= sizeof (long));
850 set_function (def_symbol_in_progress);
851 SF_SET_PROCESS (def_symbol_in_progress);
855 /* That is, if this is the first time we've seen the
857 symbol_table_insert (def_symbol_in_progress);
858 } /* definition follows debug */
859 } /* Create the line number entry pointing to the function being defined */
861 def_symbol_in_progress = NULL;
862 demand_empty_rest_of_line ();
866 obj_coff_dim (ignore)
867 int ignore ATTRIBUTE_UNUSED;
871 if (def_symbol_in_progress == NULL)
873 as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored."));
874 demand_empty_rest_of_line ();
876 } /* if not inside .def/.endef */
878 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
880 for (dim_index = 0; dim_index < DIMNUM; dim_index++)
883 SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index,
884 get_absolute_expression ());
886 switch (*input_line_pointer)
889 input_line_pointer++;
893 as_warn (_("badly formed .dim directive ignored"));
894 /* intentional fallthrough */
902 demand_empty_rest_of_line ();
906 obj_coff_line (ignore)
907 int ignore ATTRIBUTE_UNUSED;
911 if (def_symbol_in_progress == NULL)
913 /* Probably stabs-style line? */
918 this_base = get_absolute_expression ();
919 if (!strcmp (".bf", S_GET_NAME (def_symbol_in_progress)))
920 coff_line_base = this_base;
922 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
923 SA_SET_SYM_LNNO (def_symbol_in_progress, this_base);
925 demand_empty_rest_of_line ();
928 if (strcmp (".bf", S_GET_NAME (def_symbol_in_progress)) == 0)
933 listing_source_line ((unsigned int) this_base);
939 obj_coff_size (ignore)
940 int ignore ATTRIBUTE_UNUSED;
942 if (def_symbol_in_progress == NULL)
944 as_warn (_(".size pseudo-op used outside of .def/.endef ignored."));
945 demand_empty_rest_of_line ();
947 } /* if not inside .def/.endef */
949 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
950 SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ());
951 demand_empty_rest_of_line ();
955 obj_coff_scl (ignore)
956 int ignore ATTRIBUTE_UNUSED;
958 if (def_symbol_in_progress == NULL)
960 as_warn (_(".scl pseudo-op used outside of .def/.endef ignored."));
961 demand_empty_rest_of_line ();
963 } /* if not inside .def/.endef */
965 S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ());
966 demand_empty_rest_of_line ();
970 obj_coff_tag (ignore)
971 int ignore ATTRIBUTE_UNUSED;
976 if (def_symbol_in_progress == NULL)
978 as_warn (_(".tag pseudo-op used outside of .def/.endef ignored."));
979 demand_empty_rest_of_line ();
983 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
984 symbol_name = input_line_pointer;
985 name_end = get_symbol_end ();
987 #ifdef tc_canonicalize_symbol_name
988 symbol_name = tc_canonicalize_symbol_name (symbol_name);
991 /* Assume that the symbol referred to by .tag is always defined.
992 This was a bad assumption. I've added find_or_make. xoxorich. */
993 SA_SET_SYM_TAGNDX (def_symbol_in_progress,
994 tag_find_or_make (symbol_name));
995 if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L)
997 as_warn (_("tag not found for .tag %s"), symbol_name);
1000 SF_SET_TAGGED (def_symbol_in_progress);
1001 *input_line_pointer = name_end;
1003 demand_empty_rest_of_line ();
1007 obj_coff_type (ignore)
1008 int ignore ATTRIBUTE_UNUSED;
1010 if (def_symbol_in_progress == NULL)
1012 as_warn (_(".type pseudo-op used outside of .def/.endef ignored."));
1013 demand_empty_rest_of_line ();
1015 } /* if not inside .def/.endef */
1017 S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ());
1019 if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) &&
1020 S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF)
1022 SF_SET_FUNCTION (def_symbol_in_progress);
1023 } /* is a function */
1025 demand_empty_rest_of_line ();
1029 obj_coff_val (ignore)
1030 int ignore ATTRIBUTE_UNUSED;
1032 if (def_symbol_in_progress == NULL)
1034 as_warn (_(".val pseudo-op used outside of .def/.endef ignored."));
1035 demand_empty_rest_of_line ();
1037 } /* if not inside .def/.endef */
1039 if (is_name_beginner (*input_line_pointer))
1041 char *symbol_name = input_line_pointer;
1042 char name_end = get_symbol_end ();
1044 #ifdef tc_canonicalize_symbol_name
1045 symbol_name = tc_canonicalize_symbol_name (symbol_name);
1047 if (!strcmp (symbol_name, "."))
1049 symbol_set_frag (def_symbol_in_progress, frag_now);
1050 S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
1051 /* If the .val is != from the .def (e.g. statics) */
1053 else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name))
1057 exp.X_op = O_symbol;
1058 exp.X_add_symbol = symbol_find_or_make (symbol_name);
1059 exp.X_op_symbol = NULL;
1060 exp.X_add_number = 0;
1061 symbol_set_value_expression (def_symbol_in_progress, &exp);
1063 /* If the segment is undefined when the forward reference is
1064 resolved, then copy the segment id from the forward
1066 SF_SET_GET_SEGMENT (def_symbol_in_progress);
1068 /* FIXME: gcc can generate address expressions here in
1069 unusual cases (search for "obscure" in sdbout.c). We
1070 just ignore the offset here, thus generating incorrect
1071 debugging information. We ignore the rest of the line
1074 /* Otherwise, it is the name of a non debug symbol and its value
1075 will be calculated later. */
1076 *input_line_pointer = name_end;
1080 S_SET_VALUE (def_symbol_in_progress, get_absolute_expression ());
1081 } /* if symbol based */
1083 demand_empty_rest_of_line ();
1087 coff_obj_read_begin_hook ()
1089 /* These had better be the same. Usually 18 bytes. */
1091 know (sizeof (SYMENT) == sizeof (AUXENT));
1092 know (SYMESZ == AUXESZ);
1098 symbolS *coff_last_function;
1099 static symbolS *coff_last_bf;
1102 coff_frob_symbol (symp, punt)
1106 static symbolS *last_tagP;
1107 static stack *block_stack;
1108 static symbolS *set_end;
1109 symbolS *next_set_end = NULL;
1111 if (symp == &abs_symbol)
1117 if (current_lineno_sym)
1118 coff_add_linesym ((symbolS *) 0);
1121 block_stack = stack_init (512, sizeof (symbolS*));
1123 if (S_IS_WEAK (symp))
1126 S_SET_STORAGE_CLASS (symp, C_NT_WEAK);
1128 S_SET_STORAGE_CLASS (symp, C_WEAKEXT);
1132 if (!S_IS_DEFINED (symp)
1133 && !S_IS_WEAK (symp)
1134 && S_GET_STORAGE_CLASS (symp) != C_STAT)
1135 S_SET_STORAGE_CLASS (symp, C_EXT);
1137 if (!SF_GET_DEBUG (symp))
1140 if (!SF_GET_LOCAL (symp)
1141 && !SF_GET_STATICS (symp)
1142 && (real = symbol_find_base (S_GET_NAME (symp), DO_NOT_STRIP))
1145 c_symbol_merge (symp, real);
1148 if (!S_IS_DEFINED (symp) && !SF_GET_LOCAL (symp))
1150 assert (S_GET_VALUE (symp) == 0);
1151 S_SET_EXTERNAL (symp);
1153 else if (S_GET_STORAGE_CLASS (symp) == C_NULL)
1155 if (S_GET_SEGMENT (symp) == text_section
1156 && symp != seg_info (text_section)->sym)
1157 S_SET_STORAGE_CLASS (symp, C_LABEL);
1159 S_SET_STORAGE_CLASS (symp, C_STAT);
1161 if (SF_GET_PROCESS (symp))
1163 if (S_GET_STORAGE_CLASS (symp) == C_BLOCK)
1165 if (!strcmp (S_GET_NAME (symp), ".bb"))
1166 stack_push (block_stack, (char *) &symp);
1170 begin = *(symbolS **) stack_pop (block_stack);
1172 as_warn (_("mismatched .eb"));
1174 next_set_end = begin;
1177 if (coff_last_function == 0 && SF_GET_FUNCTION (symp))
1179 union internal_auxent *auxp;
1180 coff_last_function = symp;
1181 if (S_GET_NUMBER_AUXILIARY (symp) < 1)
1182 S_SET_NUMBER_AUXILIARY (symp, 1);
1183 auxp = SYM_AUXENT (symp);
1184 memset (auxp->x_sym.x_fcnary.x_ary.x_dimen, 0,
1185 sizeof (auxp->x_sym.x_fcnary.x_ary.x_dimen));
1187 if (S_GET_STORAGE_CLASS (symp) == C_EFCN)
1189 if (coff_last_function == 0)
1190 as_fatal (_("C_EFCN symbol out of scope"));
1191 SA_SET_SYM_FSIZE (coff_last_function,
1192 (long) (S_GET_VALUE (symp)
1193 - S_GET_VALUE (coff_last_function)));
1194 next_set_end = coff_last_function;
1195 coff_last_function = 0;
1198 if (S_IS_EXTERNAL (symp))
1199 S_SET_STORAGE_CLASS (symp, C_EXT);
1200 else if (SF_GET_LOCAL (symp))
1203 if (SF_GET_FUNCTION (symp))
1204 symbol_get_bfdsym (symp)->flags |= BSF_FUNCTION;
1209 /* Double check weak symbols. */
1210 if (S_IS_WEAK (symp) && S_IS_COMMON (symp))
1211 as_bad (_("Symbol `%s' can not be both weak and common"),
1214 if (SF_GET_TAG (symp))
1216 else if (S_GET_STORAGE_CLASS (symp) == C_EOS)
1217 next_set_end = last_tagP;
1220 /* This is pretty horrible, but we have to set *punt correctly in
1221 order to call SA_SET_SYM_ENDNDX correctly. */
1222 if (! symbol_used_in_reloc_p (symp)
1223 && ((symbol_get_bfdsym (symp)->flags & BSF_SECTION_SYM) != 0
1224 || (! S_IS_EXTERNAL (symp)
1225 && ! symbol_get_tc (symp)->output
1226 && S_GET_STORAGE_CLASS (symp) != C_FILE)))
1230 if (set_end != (symbolS *) NULL
1232 && ((symbol_get_bfdsym (symp)->flags & BSF_NOT_AT_END) != 0
1233 || (S_IS_DEFINED (symp)
1234 && ! S_IS_COMMON (symp)
1235 && (! S_IS_EXTERNAL (symp) || SF_GET_FUNCTION (symp)))))
1237 SA_SET_SYM_ENDNDX (set_end, symp);
1241 if (next_set_end != NULL)
1243 if (set_end != NULL)
1244 as_warn ("Warning: internal error: forgetting to set endndx of %s",
1245 S_GET_NAME (set_end));
1246 set_end = next_set_end;
1250 && S_GET_STORAGE_CLASS (symp) == C_FCN
1251 && strcmp (S_GET_NAME (symp), ".bf") == 0)
1253 if (coff_last_bf != NULL)
1254 SA_SET_SYM_ENDNDX (coff_last_bf, symp);
1255 coff_last_bf = symp;
1258 if (coffsymbol (symbol_get_bfdsym (symp))->lineno)
1261 struct line_no *lptr;
1264 lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno;
1265 for (i = 0; lptr; lptr = lptr->next)
1267 lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno;
1269 /* We need i entries for line numbers, plus 1 for the first
1270 entry which BFD will override, plus 1 for the last zero
1271 entry (a marker for BFD). */
1272 l = (alent *) xmalloc ((i + 2) * sizeof (alent));
1273 coffsymbol (symbol_get_bfdsym (symp))->lineno = l;
1274 l[i + 1].line_number = 0;
1275 l[i + 1].u.sym = NULL;
1279 lptr->l.u.offset += lptr->frag->fr_address / OCTETS_PER_BYTE;
1287 coff_adjust_section_syms (abfd, sec, x)
1288 bfd *abfd ATTRIBUTE_UNUSED;
1290 PTR x ATTRIBUTE_UNUSED;
1293 segment_info_type *seginfo = seg_info (sec);
1294 int nlnno, nrelocs = 0;
1296 /* RS/6000 gas creates a .debug section manually in ppc_frob_file in
1297 tc-ppc.c. Do not get confused by it. */
1298 if (seginfo == NULL)
1301 if (!strcmp (sec->name, ".text"))
1302 nlnno = coff_n_line_nos;
1306 /* @@ Hope that none of the fixups expand to more than one reloc
1308 fixS *fixp = seginfo->fix_root;
1311 if (! fixp->fx_done)
1313 fixp = fixp->fx_next;
1316 if (bfd_get_section_size_before_reloc (sec) == 0
1319 && sec != text_section
1320 && sec != data_section
1321 && sec != bss_section)
1323 secsym = section_symbol (sec);
1324 /* This is an estimate; we'll plug in the real value using
1325 SET_SECTION_RELOCS later */
1326 SA_SET_SCN_NRELOC (secsym, nrelocs);
1327 SA_SET_SCN_NLINNO (secsym, nlnno);
1331 coff_frob_file_after_relocs ()
1333 bfd_map_over_sections (stdoutput, coff_adjust_section_syms, (char*) 0);
1337 * implement the .section pseudo op:
1338 * .section name {, "flags"}
1340 * | +--- optional flags: 'b' for bss
1342 * +-- section name 'l' for lib
1346 * 'd' (apparently m88k for data)
1348 * 'r' for read-only data
1349 * 's' for shared data (PE)
1350 * But if the argument is not a quoted string, treat it as a
1351 * subsegment number.
1355 obj_coff_section (ignore)
1356 int ignore ATTRIBUTE_UNUSED;
1358 /* Strip out the section name */
1363 flagword flags, oldflags;
1374 section_name = input_line_pointer;
1375 c = get_symbol_end ();
1377 name = xmalloc (input_line_pointer - section_name + 1);
1378 strcpy (name, section_name);
1380 *input_line_pointer = c;
1385 flags = SEC_NO_FLAGS;
1387 if (*input_line_pointer == ',')
1389 ++input_line_pointer;
1391 if (*input_line_pointer != '"')
1392 exp = get_absolute_expression ();
1395 ++input_line_pointer;
1396 while (*input_line_pointer != '"'
1397 && ! is_end_of_line[(unsigned char) *input_line_pointer])
1399 switch (*input_line_pointer)
1401 case 'b': flags |= SEC_ALLOC; flags &=~ SEC_LOAD; break;
1402 case 'n': flags &=~ SEC_LOAD; break;
1403 case 'd': flags |= SEC_DATA | SEC_LOAD; /* fall through */
1404 case 'w': flags &=~ SEC_READONLY; break;
1405 case 'x': flags |= SEC_CODE | SEC_LOAD; break;
1406 case 'r': flags |= SEC_READONLY; break;
1407 case 's': flags |= SEC_SHARED; break;
1409 case 'i': /* STYP_INFO */
1410 case 'l': /* STYP_LIB */
1411 case 'o': /* STYP_OVER */
1412 as_warn (_("unsupported section attribute '%c'"),
1413 *input_line_pointer);
1417 as_warn(_("unknown section attribute '%c'"),
1418 *input_line_pointer);
1421 ++input_line_pointer;
1423 if (*input_line_pointer == '"')
1424 ++input_line_pointer;
1428 sec = subseg_new (name, (subsegT) exp);
1430 oldflags = bfd_get_section_flags (stdoutput, sec);
1431 if (oldflags == SEC_NO_FLAGS)
1433 /* Set section flags for a new section just created by subseg_new.
1434 Provide a default if no flags were parsed. */
1435 if (flags == SEC_NO_FLAGS)
1436 flags = TC_COFF_SECTION_DEFAULT_ATTRIBUTES;
1438 #ifdef COFF_LONG_SECTION_NAMES
1439 /* Add SEC_LINK_ONCE and SEC_LINK_DUPLICATES_DISCARD to .gnu.linkonce
1440 sections so adjust_reloc_syms in write.c will correctly handle
1441 relocs which refer to non-local symbols in these sections. */
1442 if (strncmp (name, ".gnu.linkonce", sizeof(".gnu.linkonce") - 1) == 0)
1443 flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1446 if (! bfd_set_section_flags (stdoutput, sec, flags))
1447 as_warn (_("error setting flags for \"%s\": %s"),
1448 bfd_section_name (stdoutput, sec),
1449 bfd_errmsg (bfd_get_error ()));
1451 else if (flags != SEC_NO_FLAGS)
1453 /* This section's attributes have already been set. Warn if the
1454 attributes don't match. */
1455 flagword matchflags = SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
1456 | SEC_DATA | SEC_SHARED;
1457 if ((flags ^ oldflags) & matchflags)
1458 as_warn (_("Ignoring changed section attributes for %s"), name);
1461 demand_empty_rest_of_line ();
1465 coff_adjust_symtab ()
1467 if (symbol_rootP == NULL
1468 || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
1469 c_dot_file_symbol ("fake");
1473 coff_frob_section (sec)
1479 bfd_vma size, n_entries, mask;
1480 bfd_vma align_power = (bfd_vma)sec->alignment_power + OCTETS_PER_BYTE_POWER;
1482 /* The COFF back end in BFD requires that all section sizes be
1483 rounded up to multiples of the corresponding section alignments,
1484 supposedly because standard COFF has no other way of encoding alignment
1485 for sections. If your COFF flavor has a different way of encoding
1486 section alignment, then skip this step, as TICOFF does. */
1487 size = bfd_get_section_size_before_reloc (sec);
1488 mask = ((bfd_vma) 1 << align_power) - 1;
1489 #if !defined(TICOFF)
1495 new_size = (size + mask) & ~mask;
1496 bfd_set_section_size (stdoutput, sec, new_size);
1498 /* If the size had to be rounded up, add some padding in
1499 the last non-empty frag. */
1500 fragp = seg_info (sec)->frchainP->frch_root;
1501 last = seg_info (sec)->frchainP->frch_last;
1502 while (fragp->fr_next != last)
1503 fragp = fragp->fr_next;
1504 last->fr_address = size;
1505 fragp->fr_offset += new_size - size;
1509 /* If the section size is non-zero, the section symbol needs an aux
1510 entry associated with it, indicating the size. We don't know
1511 all the values yet; coff_frob_symbol will fill them in later. */
1514 || sec == text_section
1515 || sec == data_section
1516 || sec == bss_section)
1519 symbolS *secsym = section_symbol (sec);
1521 S_SET_STORAGE_CLASS (secsym, C_STAT);
1522 S_SET_NUMBER_AUXILIARY (secsym, 1);
1523 SF_SET_STATICS (secsym);
1524 SA_SET_SCN_SCNLEN (secsym, size);
1527 /* @@ these should be in a "stabs.h" file, or maybe as.h */
1528 #ifndef STAB_SECTION_NAME
1529 #define STAB_SECTION_NAME ".stab"
1531 #ifndef STAB_STRING_SECTION_NAME
1532 #define STAB_STRING_SECTION_NAME ".stabstr"
1534 if (strcmp (STAB_STRING_SECTION_NAME, sec->name))
1538 sec = subseg_get (STAB_SECTION_NAME, 0);
1539 /* size is already rounded up, since other section will be listed first */
1540 size = bfd_get_section_size_before_reloc (strsec);
1542 n_entries = bfd_get_section_size_before_reloc (sec) / 12 - 1;
1544 /* Find first non-empty frag. It should be large enough. */
1545 fragp = seg_info (sec)->frchainP->frch_root;
1546 while (fragp && fragp->fr_fix == 0)
1547 fragp = fragp->fr_next;
1548 assert (fragp != 0 && fragp->fr_fix >= 12);
1550 /* Store the values. */
1551 p = fragp->fr_literal;
1552 bfd_h_put_16 (stdoutput, n_entries, (bfd_byte *) p + 6);
1553 bfd_h_put_32 (stdoutput, size, (bfd_byte *) p + 8);
1557 obj_coff_init_stab_section (seg)
1563 unsigned int stroff;
1565 /* Make space for this first symbol. */
1569 as_where (&file, (unsigned int *) NULL);
1570 stabstr_name = (char *) alloca (strlen (seg->name) + 4);
1571 strcpy (stabstr_name, seg->name);
1572 strcat (stabstr_name, "str");
1573 stroff = get_stab_string_offset (file, stabstr_name);
1575 md_number_to_chars (p, stroff, 4);
1584 return ((s == NULL) ? "(NULL)" : S_GET_NAME (s));
1592 for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
1594 printf(_("0x%lx: \"%s\" type = %ld, class = %d, segment = %d\n"),
1595 (unsigned long) symbolP,
1596 S_GET_NAME(symbolP),
1597 (long) S_GET_DATA_TYPE(symbolP),
1598 S_GET_STORAGE_CLASS(symbolP),
1599 (int) S_GET_SEGMENT(symbolP));
1605 #else /* not BFD_ASSEMBLER */
1608 /* This is needed because we include internal bfd things. */
1612 #include "libcoff.h"
1615 #include "coff/pe.h"
1618 /* The NOP_OPCODE is for the alignment fill value. Fill with nop so
1619 that we can stick sections together without causing trouble. */
1621 #define NOP_OPCODE 0x00
1624 /* The zeroes if symbol name is longer than 8 chars */
1625 #define S_SET_ZEROES(s,v) ((s)->sy_symbol.ost_entry.n_zeroes = (v))
1627 #define MIN(a,b) ((a) < (b)? (a) : (b))
1629 /* This vector is used to turn a gas internal segment number into a
1630 section number suitable for insertion into a coff symbol table.
1631 This must correspond to seg_info_off_by_4. */
1633 const short seg_N_TYPE[] =
1634 { /* in: segT out: N_TYPE bits */
1636 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
1637 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
1638 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
1639 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
1640 C_UNDEF_SECTION, /* SEG_UNKNOWN */
1641 C_UNDEF_SECTION, /* SEG_GOOF */
1642 C_UNDEF_SECTION, /* SEG_EXPR */
1643 C_DEBUG_SECTION, /* SEG_DEBUG */
1644 C_NTV_SECTION, /* SEG_NTV */
1645 C_PTV_SECTION, /* SEG_PTV */
1646 C_REGISTER_SECTION, /* SEG_REGISTER */
1649 int function_lineoff = -1; /* Offset in line#s where the last function
1650 started (the odd entry for line #0) */
1652 /* structure used to keep the filenames which
1653 are too long around so that we can stick them
1654 into the string table */
1655 struct filename_list
1658 struct filename_list *next;
1661 static struct filename_list *filename_list_head;
1662 static struct filename_list *filename_list_tail;
1664 static symbolS *last_line_symbol;
1666 /* Add 4 to the real value to get the index and compensate the
1667 negatives. This vector is used by S_GET_SEGMENT to turn a coff
1668 section number into a segment number
1670 static symbolS *previous_file_symbol;
1671 void c_symbol_merge ();
1672 static int line_base;
1674 symbolS *c_section_symbol ();
1677 static void fixup_segment PARAMS ((segment_info_type *segP,
1678 segT this_segment_type));
1681 static void fixup_mdeps PARAMS ((fragS *,
1686 static void fill_section PARAMS ((bfd * abfd,
1691 static int c_line_new PARAMS ((symbolS * symbol, long paddr,
1696 static void w_symbols PARAMS ((bfd * abfd, char *where,
1697 symbolS * symbol_rootP));
1699 static void adjust_stab_section PARAMS ((bfd *abfd, segT seg));
1701 static void obj_coff_lcomm PARAMS ((int));
1702 static void obj_coff_text PARAMS ((int));
1703 static void obj_coff_data PARAMS ((int));
1704 void obj_coff_section PARAMS ((int));
1706 /* When not using BFD_ASSEMBLER, we permit up to 40 sections.
1708 This array maps a COFF section number into a gas section number.
1709 Because COFF uses negative section numbers, you must add 4 to the
1710 COFF section number when indexing into this array; this is done via
1711 the SEG_INFO_FROM_SECTION_NUMBER macro. This must correspond to
1714 static const segT seg_info_off_by_4[] =
1721 SEG_E0, SEG_E1, SEG_E2, SEG_E3, SEG_E4,
1722 SEG_E5, SEG_E6, SEG_E7, SEG_E8, SEG_E9,
1723 SEG_E10, SEG_E11, SEG_E12, SEG_E13, SEG_E14,
1724 SEG_E15, SEG_E16, SEG_E17, SEG_E18, SEG_E19,
1725 SEG_E20, SEG_E21, SEG_E22, SEG_E23, SEG_E24,
1726 SEG_E25, SEG_E26, SEG_E27, SEG_E28, SEG_E29,
1727 SEG_E30, SEG_E31, SEG_E32, SEG_E33, SEG_E34,
1728 SEG_E35, SEG_E36, SEG_E37, SEG_E38, SEG_E39,
1741 #define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4])
1743 static relax_addressT
1744 relax_align (address, alignment)
1745 relax_addressT address;
1748 relax_addressT mask;
1749 relax_addressT new_address;
1751 mask = ~((~0) << alignment);
1752 new_address = (address + mask) & (~mask);
1753 return (new_address - address);
1761 return SEG_INFO_FROM_SECTION_NUMBER (x->sy_symbol.ost_entry.n_scnum);
1764 /* calculate the size of the frag chain and fill in the section header
1765 to contain all of it, also fill in the addr of the sections */
1767 size_section (abfd, idx)
1768 bfd *abfd ATTRIBUTE_UNUSED;
1772 unsigned int size = 0;
1773 fragS *frag = segment_info[idx].frchainP->frch_root;
1776 size = frag->fr_address;
1777 if (frag->fr_address != size)
1779 fprintf (stderr, _("Out of step\n"));
1780 size = frag->fr_address;
1783 switch (frag->fr_type)
1785 #ifdef TC_COFF_SIZEMACHDEP
1786 case rs_machine_dependent:
1787 size += TC_COFF_SIZEMACHDEP (frag);
1791 assert (frag->fr_symbol == 0);
1794 size += frag->fr_fix;
1795 size += frag->fr_offset * frag->fr_var;
1802 size += frag->fr_fix;
1803 off = relax_align (size, frag->fr_offset);
1804 if (frag->fr_subtype != 0 && off > frag->fr_subtype)
1810 BAD_CASE (frag->fr_type);
1813 frag = frag->fr_next;
1815 segment_info[idx].scnhdr.s_size = size;
1821 count_entries_in_chain (idx)
1824 unsigned int nrelocs;
1827 /* Count the relocations */
1828 fixup_ptr = segment_info[idx].fix_root;
1830 while (fixup_ptr != (fixS *) NULL)
1832 if (fixup_ptr->fx_done == 0 && TC_COUNT_RELOC (fixup_ptr))
1835 if (fixup_ptr->fx_r_type == RELOC_CONSTH)
1844 fixup_ptr = fixup_ptr->fx_next;
1851 static int compare_external_relocs PARAMS ((const PTR, const PTR));
1853 /* AUX's ld expects relocations to be sorted */
1855 compare_external_relocs (x, y)
1859 struct external_reloc *a = (struct external_reloc *) x;
1860 struct external_reloc *b = (struct external_reloc *) y;
1861 bfd_vma aadr = bfd_getb32 (a->r_vaddr);
1862 bfd_vma badr = bfd_getb32 (b->r_vaddr);
1863 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
1868 /* output all the relocations for a section */
1870 do_relocs_for (abfd, h, file_cursor)
1873 unsigned long *file_cursor;
1875 unsigned int nrelocs;
1877 unsigned long reloc_start = *file_cursor;
1879 for (idx = SEG_E0; idx < SEG_LAST; idx++)
1881 if (segment_info[idx].scnhdr.s_name[0])
1883 struct external_reloc *ext_ptr;
1884 struct external_reloc *external_reloc_vec;
1885 unsigned int external_reloc_size;
1886 unsigned int base = segment_info[idx].scnhdr.s_paddr;
1887 fixS *fix_ptr = segment_info[idx].fix_root;
1888 nrelocs = count_entries_in_chain (idx);
1891 /* Bypass this stuff if no relocs. This also incidentally
1892 avoids a SCO bug, where free(malloc(0)) tends to crash. */
1894 external_reloc_size = nrelocs * RELSZ;
1895 external_reloc_vec =
1896 (struct external_reloc *) malloc (external_reloc_size);
1898 ext_ptr = external_reloc_vec;
1900 /* Fill in the internal coff style reloc struct from the
1901 internal fix list. */
1904 struct internal_reloc intr;
1906 /* Only output some of the relocations */
1907 if (fix_ptr->fx_done == 0 && TC_COUNT_RELOC (fix_ptr))
1909 #ifdef TC_RELOC_MANGLE
1910 TC_RELOC_MANGLE (&segment_info[idx], fix_ptr, &intr,
1915 symbolS *symbol_ptr = fix_ptr->fx_addsy;
1917 intr.r_type = TC_COFF_FIX2RTYPE (fix_ptr);
1919 base + fix_ptr->fx_frag->fr_address + fix_ptr->fx_where;
1921 #ifdef TC_KEEP_FX_OFFSET
1922 intr.r_offset = fix_ptr->fx_offset;
1927 while (symbol_ptr->sy_value.X_op == O_symbol
1928 && (! S_IS_DEFINED (symbol_ptr)
1929 || S_IS_COMMON (symbol_ptr)))
1933 /* We must avoid looping, as that can occur
1934 with a badly written program. */
1935 n = symbol_ptr->sy_value.X_add_symbol;
1936 if (n == symbol_ptr)
1941 /* Turn the segment of the symbol into an offset. */
1944 resolve_symbol_value (symbol_ptr, 1);
1945 if (! symbol_ptr->sy_resolved)
1950 if (expr_symbol_where (symbol_ptr, &file, &line))
1951 as_bad_where (file, line,
1952 _("unresolved relocation"));
1954 as_bad (_("bad relocation: symbol `%s' not in symbol table"),
1955 S_GET_NAME (symbol_ptr));
1957 dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot;
1960 intr.r_symndx = dot->sy_number;
1964 intr.r_symndx = symbol_ptr->sy_number;
1974 (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr);
1977 #if defined(TC_A29K)
1979 /* The 29k has a special kludge for the high 16 bit
1980 reloc. Two relocations are emited, R_IHIHALF,
1981 and R_IHCONST. The second one doesn't contain a
1982 symbol, but uses the value for offset. */
1984 if (intr.r_type == R_IHIHALF)
1986 /* now emit the second bit */
1987 intr.r_type = R_IHCONST;
1988 intr.r_symndx = fix_ptr->fx_addnumber;
1989 (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr);
1995 fix_ptr = fix_ptr->fx_next;
1999 /* Sort the reloc table */
2000 qsort ((PTR) external_reloc_vec, nrelocs,
2001 sizeof (struct external_reloc), compare_external_relocs);
2004 /* Write out the reloc table */
2005 bfd_write ((PTR) external_reloc_vec, 1, external_reloc_size,
2007 free (external_reloc_vec);
2009 /* Fill in section header info. */
2010 segment_info[idx].scnhdr.s_relptr = *file_cursor;
2011 *file_cursor += external_reloc_size;
2012 segment_info[idx].scnhdr.s_nreloc = nrelocs;
2017 segment_info[idx].scnhdr.s_relptr = 0;
2021 /* Set relocation_size field in file headers */
2022 H_SET_RELOCATION_SIZE (h, *file_cursor - reloc_start, 0);
2026 /* run through a frag chain and write out the data to go with it, fill
2027 in the scnhdrs with the info on the file postions
2030 fill_section (abfd, h, file_cursor)
2032 object_headers *h ATTRIBUTE_UNUSED;
2033 unsigned long *file_cursor;
2037 unsigned int paddr = 0;
2039 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
2041 unsigned int offset = 0;
2042 struct internal_scnhdr *s = &(segment_info[i].scnhdr);
2048 fragS *frag = segment_info[i].frchainP->frch_root;
2055 buffer = xmalloc (s->s_size);
2056 s->s_scnptr = *file_cursor;
2058 know (s->s_paddr == paddr);
2060 if (strcmp (s->s_name, ".text") == 0)
2061 s->s_flags |= STYP_TEXT;
2062 else if (strcmp (s->s_name, ".data") == 0)
2063 s->s_flags |= STYP_DATA;
2064 else if (strcmp (s->s_name, ".bss") == 0)
2067 s->s_flags |= STYP_BSS;
2069 /* @@ Should make the i386 and a29k coff targets define
2070 COFF_NOLOAD_PROBLEM, and have only one test here. */
2073 #ifndef COFF_NOLOAD_PROBLEM
2074 /* Apparently the SVR3 linker (and exec syscall) and UDI
2075 mondfe progrem are confused by noload sections. */
2076 s->s_flags |= STYP_NOLOAD;
2081 else if (strcmp (s->s_name, ".lit") == 0)
2082 s->s_flags = STYP_LIT | STYP_TEXT;
2083 else if (strcmp (s->s_name, ".init") == 0)
2084 s->s_flags |= STYP_TEXT;
2085 else if (strcmp (s->s_name, ".fini") == 0)
2086 s->s_flags |= STYP_TEXT;
2087 else if (strncmp (s->s_name, ".comment", 8) == 0)
2088 s->s_flags |= STYP_INFO;
2092 unsigned int fill_size;
2093 switch (frag->fr_type)
2095 case rs_machine_dependent:
2098 memcpy (buffer + frag->fr_address,
2100 (unsigned int) frag->fr_fix);
2101 offset += frag->fr_fix;
2106 assert (frag->fr_symbol == 0);
2113 memcpy (buffer + frag->fr_address,
2115 (unsigned int) frag->fr_fix);
2116 offset += frag->fr_fix;
2119 fill_size = frag->fr_var;
2120 if (fill_size && frag->fr_offset > 0)
2123 unsigned int off = frag->fr_fix;
2124 for (count = frag->fr_offset; count; count--)
2126 if (fill_size + frag->fr_address + off <= s->s_size)
2128 memcpy (buffer + frag->fr_address + off,
2129 frag->fr_literal + frag->fr_fix,
2132 offset += fill_size;
2137 case rs_broken_word:
2142 frag = frag->fr_next;
2147 if (s->s_scnptr != 0)
2149 bfd_write (buffer, s->s_size, 1, abfd);
2150 *file_cursor += s->s_size;
2159 /* Coff file generation & utilities */
2162 coff_header_append (abfd, h)
2169 #ifdef COFF_LONG_SECTION_NAMES
2170 unsigned long string_size = 4;
2173 bfd_seek (abfd, 0, 0);
2175 #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
2176 H_SET_MAGIC_NUMBER (h, COFF_MAGIC);
2177 H_SET_VERSION_STAMP (h, 0);
2178 H_SET_ENTRY_POINT (h, 0);
2179 H_SET_TEXT_START (h, segment_info[SEG_E0].frchainP->frch_root->fr_address);
2180 H_SET_DATA_START (h, segment_info[SEG_E1].frchainP->frch_root->fr_address);
2181 H_SET_SIZEOF_OPTIONAL_HEADER (h, bfd_coff_swap_aouthdr_out(abfd, &h->aouthdr,
2183 #else /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */
2184 H_SET_SIZEOF_OPTIONAL_HEADER (h, 0);
2185 #endif /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */
2187 i = bfd_coff_swap_filehdr_out (abfd, &h->filehdr, buffer);
2189 bfd_write (buffer, i, 1, abfd);
2190 bfd_write (buffero, H_GET_SIZEOF_OPTIONAL_HEADER (h), 1, abfd);
2192 for (i = SEG_E0; i < SEG_LAST; i++)
2194 if (segment_info[i].scnhdr.s_name[0])
2198 #ifdef COFF_LONG_SECTION_NAMES
2199 /* Support long section names as found in PE. This code
2200 must coordinate with that in write_object_file and
2202 if (strlen (segment_info[i].name) > SCNNMLEN)
2204 memset (segment_info[i].scnhdr.s_name, 0, SCNNMLEN);
2205 sprintf (segment_info[i].scnhdr.s_name, "/%lu", string_size);
2206 string_size += strlen (segment_info[i].name) + 1;
2210 size = bfd_coff_swap_scnhdr_out (abfd,
2211 &(segment_info[i].scnhdr),
2214 as_bad (_("bfd_coff_swap_scnhdr_out failed"));
2215 bfd_write (buffer, size, 1, abfd);
2222 symbol_to_chars (abfd, where, symbolP)
2227 unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux;
2231 /* Turn any symbols with register attributes into abs symbols */
2232 if (S_GET_SEGMENT (symbolP) == reg_section)
2234 S_SET_SEGMENT (symbolP, absolute_section);
2236 /* At the same time, relocate all symbols to their output value */
2239 val = (segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_paddr
2240 + S_GET_VALUE (symbolP));
2242 val = S_GET_VALUE (symbolP);
2245 S_SET_VALUE (symbolP, val);
2247 symbolP->sy_symbol.ost_entry.n_value = val;
2249 where += bfd_coff_swap_sym_out (abfd, &symbolP->sy_symbol.ost_entry,
2252 for (i = 0; i < numaux; i++)
2254 where += bfd_coff_swap_aux_out (abfd,
2255 &symbolP->sy_symbol.ost_auxent[i],
2256 S_GET_DATA_TYPE (symbolP),
2257 S_GET_STORAGE_CLASS (symbolP),
2265 coff_obj_symbol_new_hook (symbolP)
2268 char underscore = 0; /* Symbol has leading _ */
2270 /* Effective symbol */
2271 /* Store the pointer in the offset. */
2272 S_SET_ZEROES (symbolP, 0L);
2273 S_SET_DATA_TYPE (symbolP, T_NULL);
2274 S_SET_STORAGE_CLASS (symbolP, 0);
2275 S_SET_NUMBER_AUXILIARY (symbolP, 0);
2276 /* Additional information */
2277 symbolP->sy_symbol.ost_flags = 0;
2278 /* Auxiliary entries */
2279 memset ((char *) &symbolP->sy_symbol.ost_auxent[0], 0, AUXESZ);
2281 if (S_IS_STRING (symbolP))
2282 SF_SET_STRING (symbolP);
2283 if (!underscore && S_IS_LOCAL (symbolP))
2284 SF_SET_LOCAL (symbolP);
2288 * Handle .ln directives.
2292 obj_coff_ln (appline)
2297 if (! appline && def_symbol_in_progress != NULL)
2299 as_warn (_(".ln pseudo-op inside .def/.endef: ignored."));
2300 demand_empty_rest_of_line ();
2302 } /* wrong context */
2304 l = get_absolute_expression ();
2305 c_line_new (0, frag_now_fix (), l, frag_now);
2308 new_logical_line ((char *) NULL, l - 1);
2318 listing_source_line ((unsigned int) l);
2323 demand_empty_rest_of_line ();
2329 * Handle .def directives.
2331 * One might ask : why can't we symbol_new if the symbol does not
2332 * already exist and fill it with debug information. Because of
2333 * the C_EFCN special symbol. It would clobber the value of the
2334 * function symbol before we have a chance to notice that it is
2335 * a C_EFCN. And a second reason is that the code is more clear this
2336 * way. (at least I think it is :-).
2340 #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';')
2341 #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \
2342 *input_line_pointer == '\t') \
2343 input_line_pointer++;
2347 int what ATTRIBUTE_UNUSED;
2349 char name_end; /* Char after the end of name */
2350 char *symbol_name; /* Name of the debug symbol */
2351 char *symbol_name_copy; /* Temporary copy of the name */
2352 unsigned int symbol_name_length;
2354 if (def_symbol_in_progress != NULL)
2356 as_warn (_(".def pseudo-op used inside of .def/.endef: ignored."));
2357 demand_empty_rest_of_line ();
2359 } /* if not inside .def/.endef */
2361 SKIP_WHITESPACES ();
2363 def_symbol_in_progress = (symbolS *) obstack_alloc (¬es, sizeof (*def_symbol_in_progress));
2364 memset (def_symbol_in_progress, 0, sizeof (*def_symbol_in_progress));
2366 symbol_name = input_line_pointer;
2367 name_end = get_symbol_end ();
2368 symbol_name_length = strlen (symbol_name);
2369 symbol_name_copy = xmalloc (symbol_name_length + 1);
2370 strcpy (symbol_name_copy, symbol_name);
2371 #ifdef tc_canonicalize_symbol_name
2372 symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy);
2375 /* Initialize the new symbol */
2376 #ifdef STRIP_UNDERSCORE
2377 S_SET_NAME (def_symbol_in_progress, (*symbol_name_copy == '_'
2378 ? symbol_name_copy + 1
2379 : symbol_name_copy));
2380 #else /* STRIP_UNDERSCORE */
2381 S_SET_NAME (def_symbol_in_progress, symbol_name_copy);
2382 #endif /* STRIP_UNDERSCORE */
2383 /* free(symbol_name_copy); */
2384 def_symbol_in_progress->sy_name_offset = (unsigned long) ~0;
2385 def_symbol_in_progress->sy_number = ~0;
2386 def_symbol_in_progress->sy_frag = &zero_address_frag;
2387 S_SET_VALUE (def_symbol_in_progress, 0);
2389 if (S_IS_STRING (def_symbol_in_progress))
2390 SF_SET_STRING (def_symbol_in_progress);
2392 *input_line_pointer = name_end;
2394 demand_empty_rest_of_line ();
2397 unsigned int dim_index;
2401 obj_coff_endef (ignore)
2402 int ignore ATTRIBUTE_UNUSED;
2404 symbolS *symbolP = 0;
2405 /* DIM BUG FIX sac@cygnus.com */
2407 if (def_symbol_in_progress == NULL)
2409 as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored."));
2410 demand_empty_rest_of_line ();
2412 } /* if not inside .def/.endef */
2414 /* Set the section number according to storage class. */
2415 switch (S_GET_STORAGE_CLASS (def_symbol_in_progress))
2420 SF_SET_TAG (def_symbol_in_progress);
2421 /* intentional fallthrough */
2424 SF_SET_DEBUG (def_symbol_in_progress);
2425 S_SET_SEGMENT (def_symbol_in_progress, SEG_DEBUG);
2429 SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */
2430 /* intentional fallthrough */
2432 SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */
2433 /* intentional fallthrough */
2435 S_SET_SEGMENT (def_symbol_in_progress, SEG_E0);
2437 if (strcmp (S_GET_NAME (def_symbol_in_progress), ".bf") == 0)
2439 if (function_lineoff < 0)
2441 fprintf (stderr, _("`.bf' symbol without preceding function\n"));
2442 } /* missing function symbol */
2443 SA_GET_SYM_LNNOPTR (last_line_symbol) = function_lineoff;
2445 SF_SET_PROCESS (last_line_symbol);
2446 SF_SET_ADJ_LNNOPTR (last_line_symbol);
2447 SF_SET_PROCESS (def_symbol_in_progress);
2448 function_lineoff = -1;
2450 /* Value is always set to . */
2451 def_symbol_in_progress->sy_frag = frag_now;
2452 S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
2457 #endif /* C_AUTOARG */
2467 SF_SET_DEBUG (def_symbol_in_progress);
2468 S_SET_SEGMENT (def_symbol_in_progress, absolute_section);
2478 /* Valid but set somewhere else (s_comm, s_lcomm, colon) */
2484 as_warn (_("unexpected storage class %d"), S_GET_STORAGE_CLASS (def_symbol_in_progress));
2486 } /* switch on storage class */
2488 /* Now that we have built a debug symbol, try to find if we should
2489 merge with an existing symbol or not. If a symbol is C_EFCN or
2490 absolute_section or untagged SEG_DEBUG it never merges. We also
2491 don't merge labels, which are in a different namespace, nor
2492 symbols which have not yet been defined since they are typically
2493 unique, nor do we merge tags with non-tags. */
2495 /* Two cases for functions. Either debug followed by definition or
2496 definition followed by debug. For definition first, we will
2497 merge the debug symbol into the definition. For debug first, the
2498 lineno entry MUST point to the definition function or else it
2499 will point off into space when crawl_symbols() merges the debug
2500 symbol into the real symbol. Therefor, let's presume the debug
2501 symbol is a real function reference. */
2503 /* FIXME-SOON If for some reason the definition label/symbol is
2504 never seen, this will probably leave an undefined symbol at link
2507 if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN
2508 || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL
2509 || (S_GET_SEGMENT (def_symbol_in_progress) == SEG_DEBUG
2510 && !SF_GET_TAG (def_symbol_in_progress))
2511 || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section
2512 || def_symbol_in_progress->sy_value.X_op != O_constant
2513 || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP)) == NULL
2514 || (SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP)))
2516 symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP,
2521 /* This symbol already exists, merge the newly created symbol
2522 into the old one. This is not mandatory. The linker can
2523 handle duplicate symbols correctly. But I guess that it save
2524 a *lot* of space if the assembly file defines a lot of
2527 /* The debug entry (def_symbol_in_progress) is merged into the
2528 previous definition. */
2530 c_symbol_merge (def_symbol_in_progress, symbolP);
2531 /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */
2532 def_symbol_in_progress = symbolP;
2534 if (SF_GET_FUNCTION (def_symbol_in_progress)
2535 || SF_GET_TAG (def_symbol_in_progress)
2536 || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT)
2538 /* For functions, and tags, and static symbols, the symbol
2539 *must* be where the debug symbol appears. Move the
2540 existing symbol to the current place. */
2541 /* If it already is at the end of the symbol list, do nothing */
2542 if (def_symbol_in_progress != symbol_lastP)
2544 symbol_remove (def_symbol_in_progress, &symbol_rootP,
2546 symbol_append (def_symbol_in_progress, symbol_lastP,
2547 &symbol_rootP, &symbol_lastP);
2548 } /* if not already in place */
2550 } /* normal or mergable */
2552 if (SF_GET_TAG (def_symbol_in_progress))
2556 oldtag = symbol_find_base (S_GET_NAME (def_symbol_in_progress),
2558 if (oldtag == NULL || ! SF_GET_TAG (oldtag))
2559 tag_insert (S_GET_NAME (def_symbol_in_progress),
2560 def_symbol_in_progress);
2563 if (SF_GET_FUNCTION (def_symbol_in_progress))
2565 know (sizeof (def_symbol_in_progress) <= sizeof (long));
2567 = c_line_new (def_symbol_in_progress, 0, 0, &zero_address_frag);
2569 SF_SET_PROCESS (def_symbol_in_progress);
2571 if (symbolP == NULL)
2573 /* That is, if this is the first time we've seen the
2575 symbol_table_insert (def_symbol_in_progress);
2576 } /* definition follows debug */
2577 } /* Create the line number entry pointing to the function being defined */
2579 def_symbol_in_progress = NULL;
2580 demand_empty_rest_of_line ();
2584 obj_coff_dim (ignore)
2585 int ignore ATTRIBUTE_UNUSED;
2589 if (def_symbol_in_progress == NULL)
2591 as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored."));
2592 demand_empty_rest_of_line ();
2594 } /* if not inside .def/.endef */
2596 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
2598 for (dim_index = 0; dim_index < DIMNUM; dim_index++)
2600 SKIP_WHITESPACES ();
2601 SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index,
2602 get_absolute_expression ());
2604 switch (*input_line_pointer)
2607 input_line_pointer++;
2611 as_warn (_("badly formed .dim directive ignored"));
2612 /* intentional fallthrough */
2620 demand_empty_rest_of_line ();
2624 obj_coff_line (ignore)
2625 int ignore ATTRIBUTE_UNUSED;
2630 if (def_symbol_in_progress == NULL)
2636 name = S_GET_NAME (def_symbol_in_progress);
2637 this_base = get_absolute_expression ();
2639 /* Only .bf symbols indicate the use of a new base line number; the
2640 line numbers associated with .ef, .bb, .eb are relative to the
2641 start of the containing function. */
2642 if (!strcmp (".bf", name))
2644 #if 0 /* XXX Can we ever have line numbers going backwards? */
2645 if (this_base > line_base)
2648 line_base = this_base;
2656 listing_source_line ((unsigned int) line_base);
2662 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
2663 SA_SET_SYM_LNNO (def_symbol_in_progress, this_base);
2665 demand_empty_rest_of_line ();
2669 obj_coff_size (ignore)
2670 int ignore ATTRIBUTE_UNUSED;
2672 if (def_symbol_in_progress == NULL)
2674 as_warn (_(".size pseudo-op used outside of .def/.endef ignored."));
2675 demand_empty_rest_of_line ();
2677 } /* if not inside .def/.endef */
2679 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
2680 SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ());
2681 demand_empty_rest_of_line ();
2685 obj_coff_scl (ignore)
2686 int ignore ATTRIBUTE_UNUSED;
2688 if (def_symbol_in_progress == NULL)
2690 as_warn (_(".scl pseudo-op used outside of .def/.endef ignored."));
2691 demand_empty_rest_of_line ();
2693 } /* if not inside .def/.endef */
2695 S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ());
2696 demand_empty_rest_of_line ();
2700 obj_coff_tag (ignore)
2701 int ignore ATTRIBUTE_UNUSED;
2706 if (def_symbol_in_progress == NULL)
2708 as_warn (_(".tag pseudo-op used outside of .def/.endef ignored."));
2709 demand_empty_rest_of_line ();
2713 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
2714 symbol_name = input_line_pointer;
2715 name_end = get_symbol_end ();
2716 #ifdef tc_canonicalize_symbol_name
2717 symbol_name = tc_canonicalize_symbol_name (symbol_name);
2720 /* Assume that the symbol referred to by .tag is always defined.
2721 This was a bad assumption. I've added find_or_make. xoxorich. */
2722 SA_SET_SYM_TAGNDX (def_symbol_in_progress,
2723 (long) tag_find_or_make (symbol_name));
2724 if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L)
2726 as_warn (_("tag not found for .tag %s"), symbol_name);
2729 SF_SET_TAGGED (def_symbol_in_progress);
2730 *input_line_pointer = name_end;
2732 demand_empty_rest_of_line ();
2736 obj_coff_type (ignore)
2737 int ignore ATTRIBUTE_UNUSED;
2739 if (def_symbol_in_progress == NULL)
2741 as_warn (_(".type pseudo-op used outside of .def/.endef ignored."));
2742 demand_empty_rest_of_line ();
2744 } /* if not inside .def/.endef */
2746 S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ());
2748 if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) &&
2749 S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF)
2751 SF_SET_FUNCTION (def_symbol_in_progress);
2752 } /* is a function */
2754 demand_empty_rest_of_line ();
2758 obj_coff_val (ignore)
2759 int ignore ATTRIBUTE_UNUSED;
2761 if (def_symbol_in_progress == NULL)
2763 as_warn (_(".val pseudo-op used outside of .def/.endef ignored."));
2764 demand_empty_rest_of_line ();
2766 } /* if not inside .def/.endef */
2768 if (is_name_beginner (*input_line_pointer))
2770 char *symbol_name = input_line_pointer;
2771 char name_end = get_symbol_end ();
2773 #ifdef tc_canonicalize_symbol_name
2774 symbol_name = tc_canonicalize_symbol_name (symbol_name);
2777 if (!strcmp (symbol_name, "."))
2779 def_symbol_in_progress->sy_frag = frag_now;
2780 S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
2781 /* If the .val is != from the .def (e.g. statics) */
2783 else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name))
2785 def_symbol_in_progress->sy_value.X_op = O_symbol;
2786 def_symbol_in_progress->sy_value.X_add_symbol =
2787 symbol_find_or_make (symbol_name);
2788 def_symbol_in_progress->sy_value.X_op_symbol = NULL;
2789 def_symbol_in_progress->sy_value.X_add_number = 0;
2791 /* If the segment is undefined when the forward reference is
2792 resolved, then copy the segment id from the forward
2794 SF_SET_GET_SEGMENT (def_symbol_in_progress);
2796 /* FIXME: gcc can generate address expressions here in
2797 unusual cases (search for "obscure" in sdbout.c). We
2798 just ignore the offset here, thus generating incorrect
2799 debugging information. We ignore the rest of the line
2802 /* Otherwise, it is the name of a non debug symbol and
2803 its value will be calculated later. */
2804 *input_line_pointer = name_end;
2806 /* FIXME: this is to avoid an error message in the
2807 FIXME case mentioned just above. */
2808 while (! is_end_of_line[(unsigned char) *input_line_pointer])
2809 ++input_line_pointer;
2813 S_SET_VALUE (def_symbol_in_progress,
2814 (valueT) get_absolute_expression ());
2815 } /* if symbol based */
2817 demand_empty_rest_of_line ();
2822 /* Handle the .linkonce pseudo-op. This is parsed by s_linkonce in
2823 read.c, which then calls this object file format specific routine. */
2826 obj_coff_pe_handle_link_once (type)
2827 enum linkonce_type type;
2829 seg_info (now_seg)->scnhdr.s_flags |= IMAGE_SCN_LNK_COMDAT;
2831 /* We store the type in the seg_info structure, and use it to set up
2832 the auxiliary entry for the section symbol in c_section_symbol. */
2833 seg_info (now_seg)->linkonce = type;
2839 coff_obj_read_begin_hook ()
2841 /* These had better be the same. Usually 18 bytes. */
2843 know (sizeof (SYMENT) == sizeof (AUXENT));
2844 know (SYMESZ == AUXESZ);
2849 /* This function runs through the symbol table and puts all the
2850 externals onto another chain */
2852 /* The chain of globals. */
2853 symbolS *symbol_globalP;
2854 symbolS *symbol_global_lastP;
2856 /* The chain of externals */
2857 symbolS *symbol_externP;
2858 symbolS *symbol_extern_lastP;
2861 symbolS *last_functionP;
2862 static symbolS *last_bfP;
2869 unsigned int symbol_number = 0;
2870 unsigned int last_file_symno = 0;
2872 struct filename_list *filename_list_scan = filename_list_head;
2874 for (symbolP = symbol_rootP;
2876 symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP)
2878 if (symbolP->sy_mri_common)
2880 if (S_GET_STORAGE_CLASS (symbolP) == C_EXT
2882 || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK
2884 || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT)
2885 as_bad (_("%s: global symbols not supported in common sections"),
2886 S_GET_NAME (symbolP));
2887 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
2891 if (!SF_GET_DEBUG (symbolP))
2893 /* Debug symbols do not need all this rubbish */
2894 symbolS *real_symbolP;
2896 /* L* and C_EFCN symbols never merge. */
2897 if (!SF_GET_LOCAL (symbolP)
2898 && !SF_GET_STATICS (symbolP)
2899 && S_GET_STORAGE_CLASS (symbolP) != C_LABEL
2900 && symbolP->sy_value.X_op == O_constant
2901 && (real_symbolP = symbol_find_base (S_GET_NAME (symbolP), DO_NOT_STRIP))
2902 && real_symbolP != symbolP)
2904 /* FIXME-SOON: where do dups come from?
2905 Maybe tag references before definitions? xoxorich. */
2906 /* Move the debug data from the debug symbol to the
2907 real symbol. Do NOT do the oposite (i.e. move from
2908 real symbol to debug symbol and remove real symbol from the
2909 list.) Because some pointers refer to the real symbol
2910 whereas no pointers refer to the debug symbol. */
2911 c_symbol_merge (symbolP, real_symbolP);
2912 /* Replace the current symbol by the real one */
2913 /* The symbols will never be the last or the first
2914 because : 1st symbol is .file and 3 last symbols are
2915 .text, .data, .bss */
2916 symbol_remove (real_symbolP, &symbol_rootP, &symbol_lastP);
2917 symbol_insert (real_symbolP, symbolP, &symbol_rootP, &symbol_lastP);
2918 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
2919 symbolP = real_symbolP;
2920 } /* if not local but dup'd */
2922 if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_E1))
2924 S_SET_SEGMENT (symbolP, SEG_E0);
2925 } /* push data into text */
2927 resolve_symbol_value (symbolP, 1);
2929 if (S_GET_STORAGE_CLASS (symbolP) == C_NULL)
2931 if (!S_IS_DEFINED (symbolP) && !SF_GET_LOCAL (symbolP))
2933 S_SET_EXTERNAL (symbolP);
2935 else if (S_GET_SEGMENT (symbolP) == SEG_E0)
2937 S_SET_STORAGE_CLASS (symbolP, C_LABEL);
2941 S_SET_STORAGE_CLASS (symbolP, C_STAT);
2945 /* Mainly to speed up if not -g */
2946 if (SF_GET_PROCESS (symbolP))
2948 /* Handle the nested blocks auxiliary info. */
2949 if (S_GET_STORAGE_CLASS (symbolP) == C_BLOCK)
2951 if (!strcmp (S_GET_NAME (symbolP), ".bb"))
2952 stack_push (block_stack, (char *) &symbolP);
2955 register symbolS *begin_symbolP;
2956 begin_symbolP = *(symbolS **) stack_pop (block_stack);
2957 if (begin_symbolP == (symbolS *) 0)
2958 as_warn (_("mismatched .eb"));
2960 SA_SET_SYM_ENDNDX (begin_symbolP, symbol_number + 2);
2963 /* If we are able to identify the type of a function, and we
2964 are out of a function (last_functionP == 0) then, the
2965 function symbol will be associated with an auxiliary
2967 if (last_functionP == (symbolS *) 0 &&
2968 SF_GET_FUNCTION (symbolP))
2970 last_functionP = symbolP;
2972 if (S_GET_NUMBER_AUXILIARY (symbolP) < 1)
2974 S_SET_NUMBER_AUXILIARY (symbolP, 1);
2975 } /* make it at least 1 */
2977 /* Clobber possible stale .dim information. */
2979 /* Iffed out by steve - this fries the lnnoptr info too */
2980 bzero (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen,
2981 sizeof (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen));
2984 if (S_GET_STORAGE_CLASS (symbolP) == C_FCN)
2986 if (strcmp (S_GET_NAME (symbolP), ".bf") == 0)
2988 if (last_bfP != NULL)
2989 SA_SET_SYM_ENDNDX (last_bfP, symbol_number);
2993 else if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN)
2995 /* I don't even know if this is needed for sdb. But
2996 the standard assembler generates it, so... */
2997 if (last_functionP == (symbolS *) 0)
2998 as_fatal (_("C_EFCN symbol out of scope"));
2999 SA_SET_SYM_FSIZE (last_functionP,
3000 (long) (S_GET_VALUE (symbolP) -
3001 S_GET_VALUE (last_functionP)));
3002 SA_SET_SYM_ENDNDX (last_functionP, symbol_number);
3003 last_functionP = (symbolS *) 0;
3007 else if (SF_GET_TAG (symbolP))
3009 /* First descriptor of a structure must point to
3010 the first slot after the structure description. */
3011 last_tagP = symbolP;
3014 else if (S_GET_STORAGE_CLASS (symbolP) == C_EOS)
3016 /* +2 take in account the current symbol */
3017 SA_SET_SYM_ENDNDX (last_tagP, symbol_number + 2);
3019 else if (S_GET_STORAGE_CLASS (symbolP) == C_FILE)
3021 /* If the filename was too long to fit in the
3022 auxent, put it in the string table */
3023 if (SA_GET_FILE_FNAME_ZEROS (symbolP) == 0
3024 && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0)
3026 SA_SET_FILE_FNAME_OFFSET (symbolP, string_byte_count);
3027 string_byte_count += strlen (filename_list_scan->filename) + 1;
3028 filename_list_scan = filename_list_scan->next;
3030 if (S_GET_VALUE (symbolP))
3032 S_SET_VALUE (symbolP, last_file_symno);
3033 last_file_symno = symbol_number;
3034 } /* no one points at the first .file symbol */
3035 } /* if debug or tag or eos or file */
3037 #ifdef tc_frob_coff_symbol
3038 tc_frob_coff_symbol (symbolP);
3041 /* We must put the external symbols apart. The loader
3042 does not bomb if we do not. But the references in
3043 the endndx field for a .bb symbol are not corrected
3044 if an external symbol is removed between .bb and .be.
3045 I.e in the following case :
3046 [20] .bb endndx = 22
3049 ld will move the symbol 21 to the end of the list but
3050 endndx will still be 22 instead of 21. */
3053 if (SF_GET_LOCAL (symbolP))
3055 /* remove C_EFCN and LOCAL (L...) symbols */
3056 /* next pointer remains valid */
3057 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3060 else if (symbolP->sy_value.X_op == O_symbol
3061 && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)))
3063 /* Skip symbols which were equated to undefined or common
3065 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3067 else if (!S_IS_DEFINED (symbolP)
3068 && !S_IS_DEBUG (symbolP)
3069 && !SF_GET_STATICS (symbolP)
3070 && (S_GET_STORAGE_CLASS (symbolP) == C_EXT
3072 || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK
3074 || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT))
3076 /* if external, Remove from the list */
3077 symbolS *hold = symbol_previous (symbolP);
3079 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3080 symbol_clear_list_pointers (symbolP);
3081 symbol_append (symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP);
3084 else if (! S_IS_DEBUG (symbolP)
3085 && ! SF_GET_STATICS (symbolP)
3086 && ! SF_GET_FUNCTION (symbolP)
3087 && (S_GET_STORAGE_CLASS (symbolP) == C_EXT
3089 || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK
3091 || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK))
3093 symbolS *hold = symbol_previous (symbolP);
3095 /* The O'Reilly COFF book says that defined global symbols
3096 come at the end of the symbol table, just before
3097 undefined global symbols. */
3099 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3100 symbol_clear_list_pointers (symbolP);
3101 symbol_append (symbolP, symbol_global_lastP, &symbol_globalP,
3102 &symbol_global_lastP);
3107 if (SF_GET_STRING (symbolP))
3109 symbolP->sy_name_offset = string_byte_count;
3110 string_byte_count += strlen (S_GET_NAME (symbolP)) + 1;
3114 symbolP->sy_name_offset = 0;
3115 } /* fix "long" names */
3117 symbolP->sy_number = symbol_number;
3118 symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP);
3119 } /* if local symbol */
3120 } /* traverse the symbol list */
3121 return symbol_number;
3127 glue_symbols (head, tail)
3131 unsigned int symbol_number = 0;
3133 while (*head != NULL)
3135 symbolS *tmp = *head;
3138 symbol_remove (tmp, head, tail);
3139 symbol_append (tmp, symbol_lastP, &symbol_rootP, &symbol_lastP);
3142 if (SF_GET_STRING (tmp))
3144 tmp->sy_name_offset = string_byte_count;
3145 string_byte_count += strlen (S_GET_NAME (tmp)) + 1;
3149 tmp->sy_name_offset = 0;
3150 } /* fix "long" names */
3152 tmp->sy_number = symbol_number;
3153 symbol_number += 1 + S_GET_NUMBER_AUXILIARY (tmp);
3154 } /* append the entire extern chain */
3156 return symbol_number;
3162 unsigned int symbol_number = 0;
3165 for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
3167 symbolP->sy_number = symbol_number;
3169 if (SF_GET_TAGGED (symbolP))
3173 ((symbolS *) SA_GET_SYM_TAGNDX (symbolP))->sy_number);
3176 symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP);
3179 return symbol_number;
3183 crawl_symbols (h, abfd)
3185 bfd *abfd ATTRIBUTE_UNUSED;
3189 /* Initialize the stack used to keep track of the matching .bb .be */
3191 block_stack = stack_init (512, sizeof (symbolS *));
3193 /* The symbol list should be ordered according to the following sequence
3196 * . debug entries for functions
3197 * . fake symbols for the sections, including .text .data and .bss
3199 * . undefined symbols
3200 * But this is not mandatory. The only important point is to put the
3201 * undefined symbols at the end of the list.
3204 /* Is there a .file symbol ? If not insert one at the beginning. */
3205 if (symbol_rootP == NULL
3206 || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
3208 c_dot_file_symbol ("fake");
3212 * Build up static symbols for the sections, they are filled in later
3216 for (i = SEG_E0; i < SEG_LAST; i++)
3217 if (segment_info[i].scnhdr.s_name[0])
3218 segment_info[i].dot = c_section_symbol (segment_info[i].name,
3221 /* Take all the externals out and put them into another chain */
3222 H_SET_SYMBOL_TABLE_SIZE (h, yank_symbols ());
3223 /* Take the externals and glue them onto the end.*/
3224 H_SET_SYMBOL_TABLE_SIZE (h,
3225 (H_GET_SYMBOL_COUNT (h)
3226 + glue_symbols (&symbol_globalP,
3227 &symbol_global_lastP)
3228 + glue_symbols (&symbol_externP,
3229 &symbol_extern_lastP)));
3231 H_SET_SYMBOL_TABLE_SIZE (h, tie_tags ());
3232 know (symbol_globalP == NULL);
3233 know (symbol_global_lastP == NULL);
3234 know (symbol_externP == NULL);
3235 know (symbol_extern_lastP == NULL);
3239 * Find strings by crawling along symbol table chain.
3247 struct filename_list *filename_list_scan = filename_list_head;
3249 /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */
3250 md_number_to_chars (where, (valueT) string_byte_count, 4);
3253 #ifdef COFF_LONG_SECTION_NAMES
3254 /* Support long section names as found in PE. This code must
3255 coordinate with that in coff_header_append and write_object_file. */
3259 for (i = SEG_E0; i < SEG_LAST; i++)
3261 if (segment_info[i].scnhdr.s_name[0]
3262 && strlen (segment_info[i].name) > SCNNMLEN)
3266 size = strlen (segment_info[i].name) + 1;
3267 memcpy (where, segment_info[i].name, size);
3272 #endif /* COFF_LONG_SECTION_NAMES */
3274 for (symbolP = symbol_rootP;
3276 symbolP = symbol_next (symbolP))
3280 if (SF_GET_STRING (symbolP))
3282 size = strlen (S_GET_NAME (symbolP)) + 1;
3283 memcpy (where, S_GET_NAME (symbolP), size);
3286 if (S_GET_STORAGE_CLASS (symbolP) == C_FILE
3287 && SA_GET_FILE_FNAME_ZEROS (symbolP) == 0
3288 && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0)
3290 size = strlen (filename_list_scan->filename) + 1;
3291 memcpy (where, filename_list_scan->filename, size);
3292 filename_list_scan = filename_list_scan ->next;
3299 do_linenos_for (abfd, h, file_cursor)
3302 unsigned long *file_cursor;
3305 unsigned long start = *file_cursor;
3307 for (idx = SEG_E0; idx < SEG_LAST; idx++)
3309 segment_info_type *s = segment_info + idx;
3312 if (s->scnhdr.s_nlnno != 0)
3314 struct lineno_list *line_ptr;
3316 struct external_lineno *buffer =
3317 (struct external_lineno *) xmalloc (s->scnhdr.s_nlnno * LINESZ);
3319 struct external_lineno *dst = buffer;
3321 /* Run through the table we've built and turn it into its external
3322 form, take this chance to remove duplicates */
3324 for (line_ptr = s->lineno_list_head;
3325 line_ptr != (struct lineno_list *) NULL;
3326 line_ptr = line_ptr->next)
3329 if (line_ptr->line.l_lnno == 0)
3331 /* Turn a pointer to a symbol into the symbols' index */
3332 line_ptr->line.l_addr.l_symndx =
3333 ((symbolS *) line_ptr->line.l_addr.l_symndx)->sy_number;
3337 line_ptr->line.l_addr.l_paddr += ((struct frag *) (line_ptr->frag))->fr_address;
3341 (void) bfd_coff_swap_lineno_out (abfd, &(line_ptr->line), dst);
3346 s->scnhdr.s_lnnoptr = *file_cursor;
3348 bfd_write (buffer, 1, s->scnhdr.s_nlnno * LINESZ, abfd);
3351 *file_cursor += s->scnhdr.s_nlnno * LINESZ;
3354 H_SET_LINENO_SIZE (h, *file_cursor - start);
3358 /* Now we run through the list of frag chains in a segment and
3359 make all the subsegment frags appear at the end of the
3360 list, as if the seg 0 was extra long */
3367 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3369 frchainS *head = segment_info[i].frchainP;
3371 fragS *prev_frag = &dummy;
3373 while (head && head->frch_seg == i)
3375 prev_frag->fr_next = head->frch_root;
3376 prev_frag = head->frch_last;
3377 head = head->frch_next;
3379 prev_frag->fr_next = 0;
3383 unsigned long machine;
3386 write_object_file ()
3390 struct frchain *frchain_ptr;
3392 object_headers headers;
3393 unsigned long file_cursor;
3396 abfd = bfd_openw (out_file_name, TARGET_FORMAT);
3401 as_perror (_("FATAL: Can't create %s"), out_file_name);
3402 exit (EXIT_FAILURE);
3404 bfd_set_format (abfd, bfd_object);
3405 bfd_set_arch_mach (abfd, BFD_ARCH, machine);
3407 string_byte_count = 4;
3409 for (frchain_ptr = frchain_root;
3410 frchain_ptr != (struct frchain *) NULL;
3411 frchain_ptr = frchain_ptr->frch_next)
3413 /* Run through all the sub-segments and align them up. Also
3414 close any open frags. We tack a .fill onto the end of the
3415 frag chain so that any .align's size can be worked by looking
3416 at the next frag. */
3418 subseg_set (frchain_ptr->frch_seg, frchain_ptr->frch_subseg);
3420 #ifndef SUB_SEGMENT_ALIGN
3421 #define SUB_SEGMENT_ALIGN(SEG) 1
3424 md_do_align (SUB_SEGMENT_ALIGN (now_seg), (char *) NULL, 0, 0,
3427 frag_align (SUB_SEGMENT_ALIGN (now_seg),
3428 subseg_text_p (now_seg) ? NOP_OPCODE : 0,
3433 frag_wane (frag_now);
3434 frag_now->fr_fix = 0;
3435 know (frag_now->fr_next == NULL);
3442 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3444 relax_segment (segment_info[i].frchainP->frch_root, i);
3447 H_SET_NUMBER_OF_SECTIONS (&headers, 0);
3449 /* Find out how big the sections are, and set the addresses. */
3451 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3455 segment_info[i].scnhdr.s_paddr = addr;
3456 segment_info[i].scnhdr.s_vaddr = addr;
3458 if (segment_info[i].scnhdr.s_name[0])
3460 H_SET_NUMBER_OF_SECTIONS (&headers,
3461 H_GET_NUMBER_OF_SECTIONS (&headers) + 1);
3463 #ifdef COFF_LONG_SECTION_NAMES
3464 /* Support long section names as found in PE. This code
3465 must coordinate with that in coff_header_append and
3470 len = strlen (segment_info[i].name);
3472 string_byte_count += len + 1;
3474 #endif /* COFF_LONG_SECTION_NAMES */
3477 size = size_section (abfd, (unsigned int) i);
3480 /* I think the section alignment is only used on the i960; the
3481 i960 needs it, and it should do no harm on other targets. */
3482 #ifdef ALIGNMENT_IN_S_FLAGS
3483 segment_info[i].scnhdr.s_flags |= (section_alignment[i] & 0xF) << 8;
3485 segment_info[i].scnhdr.s_align = 1 << section_alignment[i];
3489 H_SET_TEXT_SIZE (&headers, size);
3490 else if (i == SEG_E1)
3491 H_SET_DATA_SIZE (&headers, size);
3492 else if (i == SEG_E2)
3493 H_SET_BSS_SIZE (&headers, size);
3496 /* Turn the gas native symbol table shape into a coff symbol table */
3497 crawl_symbols (&headers, abfd);
3499 if (string_byte_count == 4)
3500 string_byte_count = 0;
3502 H_SET_STRING_SIZE (&headers, string_byte_count);
3508 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3510 fixup_mdeps (segment_info[i].frchainP->frch_root, &headers, i);
3511 fixup_segment (&segment_info[i], i);
3514 /* Look for ".stab" segments and fill in their initial symbols
3516 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3518 name = segment_info[i].name;
3521 && strncmp (".stab", name, 5) == 0
3522 && strncmp (".stabstr", name, 8) != 0)
3523 adjust_stab_section (abfd, i);
3526 file_cursor = H_GET_TEXT_FILE_OFFSET (&headers);
3528 bfd_seek (abfd, (file_ptr) file_cursor, 0);
3530 /* Plant the data */
3532 fill_section (abfd, &headers, &file_cursor);
3534 do_relocs_for (abfd, &headers, &file_cursor);
3536 do_linenos_for (abfd, &headers, &file_cursor);
3538 H_SET_FILE_MAGIC_NUMBER (&headers, COFF_MAGIC);
3539 #ifndef OBJ_COFF_OMIT_TIMESTAMP
3540 H_SET_TIME_STAMP (&headers, (long)time((time_t *)0));
3542 H_SET_TIME_STAMP (&headers, 0);
3544 #ifdef TC_COFF_SET_MACHINE
3545 TC_COFF_SET_MACHINE (&headers);
3549 #define COFF_FLAGS 0
3552 #ifdef KEEP_RELOC_INFO
3553 H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) |
3554 COFF_FLAGS | coff_flags));
3556 H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) |
3557 (H_GET_RELOCATION_SIZE(&headers) ? 0 : F_RELFLG) |
3558 COFF_FLAGS | coff_flags));
3562 unsigned int symtable_size = H_GET_SYMBOL_TABLE_SIZE (&headers);
3563 char *buffer1 = xmalloc (symtable_size + string_byte_count + 1);
3565 H_SET_SYMBOL_TABLE_POINTER (&headers, bfd_tell (abfd));
3566 w_symbols (abfd, buffer1, symbol_rootP);
3567 if (string_byte_count > 0)
3568 w_strings (buffer1 + symtable_size);
3569 bfd_write (buffer1, 1, symtable_size + string_byte_count, abfd);
3573 coff_header_append (abfd, &headers);
3575 /* Recent changes to write need this, but where it should
3576 go is up to Ken.. */
3577 if (bfd_close_all_done (abfd) == false)
3578 as_fatal (_("Can't close %s: %s"), out_file_name,
3579 bfd_errmsg (bfd_get_error ()));
3582 extern bfd *stdoutput;
3589 /* Add a new segment. This is called from subseg_new via the
3590 obj_new_segment macro. */
3593 obj_coff_add_segment (name)
3598 #ifndef COFF_LONG_SECTION_NAMES
3599 char buf[SCNNMLEN + 1];
3601 strncpy (buf, name, SCNNMLEN);
3602 buf[SCNNMLEN] = '\0';
3606 for (i = SEG_E0; i < SEG_LAST && segment_info[i].scnhdr.s_name[0]; i++)
3607 if (strcmp (name, segment_info[i].name) == 0)
3612 as_bad (_("Too many new sections; can't add \"%s\""), name);
3616 /* Add a new section. */
3617 strncpy (segment_info[i].scnhdr.s_name, name,
3618 sizeof (segment_info[i].scnhdr.s_name));
3619 segment_info[i].scnhdr.s_flags = STYP_REG;
3620 segment_info[i].name = xstrdup (name);
3626 * implement the .section pseudo op:
3627 * .section name {, "flags"}
3629 * | +--- optional flags: 'b' for bss
3631 * +-- section name 'l' for lib
3635 * 'd' (apparently m88k for data)
3637 * 'r' for read-only data
3638 * But if the argument is not a quoted string, treat it as a
3639 * subsegment number.
3643 obj_coff_section (ignore)
3644 int ignore ATTRIBUTE_UNUSED;
3646 /* Strip out the section name */
3647 char *section_name, *name;
3660 else if (type == 'D')
3662 segment_info[now_seg].scnhdr.s_flags |= flags;
3667 section_name = input_line_pointer;
3668 c = get_symbol_end ();
3670 name = xmalloc (input_line_pointer - section_name + 1);
3671 strcpy (name, section_name);
3673 *input_line_pointer = c;
3679 if (*input_line_pointer == ',')
3681 ++input_line_pointer;
3684 if (*input_line_pointer != '"')
3685 exp = get_absolute_expression ();
3688 ++input_line_pointer;
3689 while (*input_line_pointer != '"'
3690 && ! is_end_of_line[(unsigned char) *input_line_pointer])
3692 switch (*input_line_pointer)
3694 case 'b': flags |= STYP_BSS; break;
3695 case 'i': flags |= STYP_INFO; break;
3696 case 'l': flags |= STYP_LIB; break;
3697 case 'n': flags |= STYP_NOLOAD; break;
3698 case 'o': flags |= STYP_OVER; break;
3700 case 'w': flags |= STYP_DATA; break;
3701 case 'x': flags |= STYP_TEXT; break;
3702 case 'r': flags |= STYP_LIT; break;
3704 as_warn(_("unknown section attribute '%c'"),
3705 *input_line_pointer);
3708 ++input_line_pointer;
3710 if (*input_line_pointer == '"')
3711 ++input_line_pointer;
3715 subseg_new (name, (subsegT) exp);
3717 segment_info[now_seg].scnhdr.s_flags |= flags;
3719 demand_empty_rest_of_line ();
3724 obj_coff_text (ignore)
3725 int ignore ATTRIBUTE_UNUSED;
3727 subseg_new (".text", get_absolute_expression ());
3732 obj_coff_data (ignore)
3733 int ignore ATTRIBUTE_UNUSED;
3735 if (flag_readonly_data_in_text)
3736 subseg_new (".text", get_absolute_expression () + 1000);
3738 subseg_new (".data", get_absolute_expression ());
3742 obj_coff_ident (ignore)
3743 int ignore ATTRIBUTE_UNUSED;
3745 segT current_seg = now_seg; /* save current seg */
3746 subsegT current_subseg = now_subseg;
3747 subseg_new (".comment", 0); /* .comment seg */
3748 stringer (1); /* read string */
3749 subseg_set (current_seg, current_subseg); /* restore current seg */
3753 c_symbol_merge (debug, normal)
3757 S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug));
3758 S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug));
3760 if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal))
3762 S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug));
3763 } /* take the most we have */
3765 if (S_GET_NUMBER_AUXILIARY (debug) > 0)
3767 memcpy ((char *) &normal->sy_symbol.ost_auxent[0],
3768 (char *) &debug->sy_symbol.ost_auxent[0],
3769 (unsigned int) (S_GET_NUMBER_AUXILIARY (debug) * AUXESZ));
3770 } /* Move all the auxiliary information */
3772 /* Move the debug flags. */
3773 SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug));
3774 } /* c_symbol_merge() */
3777 c_line_new (symbol, paddr, line_number, frag)
3783 struct lineno_list *new_line =
3784 (struct lineno_list *) xmalloc (sizeof (struct lineno_list));
3786 segment_info_type *s = segment_info + now_seg;
3787 new_line->line.l_lnno = line_number;
3789 if (line_number == 0)
3791 last_line_symbol = symbol;
3792 new_line->line.l_addr.l_symndx = (long) symbol;
3796 new_line->line.l_addr.l_paddr = paddr;
3799 new_line->frag = (char *) frag;
3800 new_line->next = (struct lineno_list *) NULL;
3803 if (s->lineno_list_head == (struct lineno_list *) NULL)
3805 s->lineno_list_head = new_line;
3809 s->lineno_list_tail->next = new_line;
3811 s->lineno_list_tail = new_line;
3812 return LINESZ * s->scnhdr.s_nlnno++;
3816 c_dot_file_symbol (filename)
3821 symbolP = symbol_new (".file",
3824 &zero_address_frag);
3826 S_SET_STORAGE_CLASS (symbolP, C_FILE);
3827 S_SET_NUMBER_AUXILIARY (symbolP, 1);
3829 if (strlen (filename) > FILNMLEN)
3831 /* Filename is too long to fit into an auxent,
3832 we stick it into the string table instead. We keep
3833 a linked list of the filenames we find so we can emit
3835 struct filename_list *f = ((struct filename_list *)
3836 xmalloc (sizeof (struct filename_list)));
3838 f->filename = filename;
3841 SA_SET_FILE_FNAME_ZEROS (symbolP, 0);
3842 SA_SET_FILE_FNAME_OFFSET (symbolP, 1);
3844 if (filename_list_tail)
3845 filename_list_tail->next = f;
3847 filename_list_head = f;
3848 filename_list_tail = f;
3852 SA_SET_FILE_FNAME (symbolP, filename);
3859 listing_source_file (filename);
3865 SF_SET_DEBUG (symbolP);
3866 S_SET_VALUE (symbolP, (valueT) previous_file_symbol);
3868 previous_file_symbol = symbolP;
3870 /* Make sure that the symbol is first on the symbol chain */
3871 if (symbol_rootP != symbolP)
3873 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3874 symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP);
3876 } /* c_dot_file_symbol() */
3879 * Build a 'section static' symbol.
3883 c_section_symbol (name, idx)
3889 symbolP = symbol_find_base (name, DO_NOT_STRIP);
3890 if (symbolP == NULL)
3891 symbolP = symbol_new (name, idx, 0, &zero_address_frag);
3894 /* Mmmm. I just love violating interfaces. Makes me feel...dirty. */
3895 S_SET_SEGMENT (symbolP, idx);
3896 symbolP->sy_frag = &zero_address_frag;
3899 S_SET_STORAGE_CLASS (symbolP, C_STAT);
3900 S_SET_NUMBER_AUXILIARY (symbolP, 1);
3902 SF_SET_STATICS (symbolP);
3905 /* manfred@s-direktnet.de: section symbols *must* have the LOCAL bit cleared,
3906 which is set by the new definition of LOCAL_LABEL in tc-m68k.h. */
3907 SF_CLEAR_LOCAL (symbolP);
3910 /* If the .linkonce pseudo-op was used for this section, we must
3911 store the information in the auxiliary entry for the section
3913 if (segment_info[idx].linkonce != LINKONCE_UNSET)
3917 switch (segment_info[idx].linkonce)
3921 case LINKONCE_DISCARD:
3922 type = IMAGE_COMDAT_SELECT_ANY;
3924 case LINKONCE_ONE_ONLY:
3925 type = IMAGE_COMDAT_SELECT_NODUPLICATES;
3927 case LINKONCE_SAME_SIZE:
3928 type = IMAGE_COMDAT_SELECT_SAME_SIZE;
3930 case LINKONCE_SAME_CONTENTS:
3931 type = IMAGE_COMDAT_SELECT_EXACT_MATCH;
3935 SYM_AUXENT (symbolP)->x_scn.x_comdat = type;
3940 } /* c_section_symbol() */
3943 w_symbols (abfd, where, symbol_rootP)
3946 symbolS * symbol_rootP;
3951 /* First fill in those values we have only just worked out */
3952 for (i = SEG_E0; i < SEG_LAST; i++)
3954 symbolP = segment_info[i].dot;
3957 SA_SET_SCN_SCNLEN (symbolP, segment_info[i].scnhdr.s_size);
3958 SA_SET_SCN_NRELOC (symbolP, segment_info[i].scnhdr.s_nreloc);
3959 SA_SET_SCN_NLINNO (symbolP, segment_info[i].scnhdr.s_nlnno);
3964 * Emit all symbols left in the symbol chain.
3966 for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
3968 /* Used to save the offset of the name. It is used to point
3969 to the string in memory but must be a file offset. */
3970 register char *temp;
3972 /* We can't fix the lnnoptr field in yank_symbols with the other
3973 adjustments, because we have to wait until we know where they
3975 if (SF_GET_ADJ_LNNOPTR (symbolP))
3977 SA_GET_SYM_LNNOPTR (symbolP) +=
3978 segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_lnnoptr;
3981 tc_coff_symbol_emit_hook (symbolP);
3983 temp = S_GET_NAME (symbolP);
3984 if (SF_GET_STRING (symbolP))
3986 S_SET_OFFSET (symbolP, symbolP->sy_name_offset);
3987 S_SET_ZEROES (symbolP, 0);
3991 memset (symbolP->sy_symbol.ost_entry.n_name, 0, SYMNMLEN);
3992 strncpy (symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN);
3994 where = symbol_to_chars (abfd, where, symbolP);
3995 S_SET_NAME (symbolP, temp);
4001 obj_coff_lcomm (ignore)
4002 int ignore ATTRIBUTE_UNUSED;
4014 name = input_line_pointer;
4016 c = get_symbol_end ();
4017 p = input_line_pointer;
4020 if (*input_line_pointer != ',')
4022 as_bad (_("Expected comma after name"));
4023 ignore_rest_of_line ();
4026 if (*input_line_pointer == '\n')
4028 as_bad (_("Missing size expression"));
4031 input_line_pointer++;
4032 if ((temp = get_absolute_expression ()) < 0)
4034 as_warn (_("lcomm length (%d.) <0! Ignored."), temp);
4035 ignore_rest_of_line ();
4040 symbolP = symbol_find_or_make(name);
4042 if (S_GET_SEGMENT(symbolP) == SEG_UNKNOWN &&
4043 S_GET_VALUE(symbolP) == 0)
4048 segT current_seg = now_seg; /* save current seg */
4049 subsegT current_subseg = now_subseg;
4051 subseg_set (SEG_E2, 1);
4052 symbolP->sy_frag = frag_now;
4053 p = frag_var(rs_org, 1, 1, (relax_substateT)0, symbolP,
4054 (offsetT) temp, (char *) 0);
4056 subseg_set (current_seg, current_subseg); /* restore current seg */
4057 S_SET_SEGMENT(symbolP, SEG_E2);
4058 S_SET_STORAGE_CLASS(symbolP, C_STAT);
4062 as_bad(_("Symbol %s already defined"), name);
4064 demand_empty_rest_of_line();
4069 fixup_mdeps (frags, h, this_segment)
4074 subseg_change (this_segment, 0);
4077 switch (frags->fr_type)
4083 HANDLE_ALIGN (frags);
4085 frags->fr_type = rs_fill;
4087 ((frags->fr_next->fr_address - frags->fr_address - frags->fr_fix)
4090 case rs_machine_dependent:
4091 md_convert_frag (h, this_segment, frags);
4097 frags = frags->fr_next;
4103 #ifndef TC_FORCE_RELOCATION
4104 #define TC_FORCE_RELOCATION(fix) 0
4108 fixup_segment (segP, this_segment_type)
4109 segment_info_type * segP;
4110 segT this_segment_type;
4112 register fixS * fixP;
4113 register symbolS *add_symbolP;
4114 register symbolS *sub_symbolP;
4117 register char *place;
4118 register long where;
4119 register char pcrel;
4120 register fragS *fragP;
4121 register segT add_symbol_segment = absolute_section;
4123 for (fixP = segP->fix_root; fixP; fixP = fixP->fx_next)
4125 fragP = fixP->fx_frag;
4127 where = fixP->fx_where;
4128 place = fragP->fr_literal + where;
4129 size = fixP->fx_size;
4130 add_symbolP = fixP->fx_addsy;
4131 sub_symbolP = fixP->fx_subsy;
4132 add_number = fixP->fx_offset;
4133 pcrel = fixP->fx_pcrel;
4135 /* We want function-relative stabs to work on systems which
4136 may use a relaxing linker; thus we must handle the sym1-sym2
4137 fixups function-relative stabs generates.
4139 Of course, if you actually enable relaxing in the linker, the
4140 line and block scoping information is going to be incorrect
4141 in some cases. The only way to really fix this is to support
4142 a reloc involving the difference of two symbols. */
4144 && (!sub_symbolP || pcrel))
4148 if (fixP->fx_tcbit && SF_GET_CALLNAME (add_symbolP))
4150 /* Relocation should be done via the associated 'bal' entry
4153 if (!SF_GET_BALNAME (tc_get_bal_of_call (add_symbolP)))
4155 as_bad_where (fixP->fx_file, fixP->fx_line,
4156 _("No 'bal' entry point for leafproc %s"),
4157 S_GET_NAME (add_symbolP));
4160 fixP->fx_addsy = add_symbolP = tc_get_bal_of_call (add_symbolP);
4164 /* Make sure the symbols have been resolved; this may not have
4165 happened if these are expression symbols. */
4166 if (add_symbolP != NULL && ! add_symbolP->sy_resolved)
4167 resolve_symbol_value (add_symbolP, 1);
4169 if (add_symbolP != NULL)
4171 /* If this fixup is against a symbol which has been equated
4172 to another symbol, convert it to the other symbol. */
4173 if (add_symbolP->sy_value.X_op == O_symbol
4174 && (! S_IS_DEFINED (add_symbolP)
4175 || S_IS_COMMON (add_symbolP)))
4177 while (add_symbolP->sy_value.X_op == O_symbol
4178 && (! S_IS_DEFINED (add_symbolP)
4179 || S_IS_COMMON (add_symbolP)))
4183 /* We must avoid looping, as that can occur with a
4184 badly written program. */
4185 n = add_symbolP->sy_value.X_add_symbol;
4186 if (n == add_symbolP)
4188 add_number += add_symbolP->sy_value.X_add_number;
4191 fixP->fx_addsy = add_symbolP;
4192 fixP->fx_offset = add_number;
4196 if (sub_symbolP != NULL && ! sub_symbolP->sy_resolved)
4197 resolve_symbol_value (sub_symbolP, 1);
4199 if (add_symbolP != NULL
4200 && add_symbolP->sy_mri_common)
4202 know (add_symbolP->sy_value.X_op == O_symbol);
4203 add_number += S_GET_VALUE (add_symbolP);
4204 fixP->fx_offset = add_number;
4205 add_symbolP = fixP->fx_addsy = add_symbolP->sy_value.X_add_symbol;
4210 add_symbol_segment = S_GET_SEGMENT (add_symbolP);
4211 } /* if there is an addend */
4215 if (add_symbolP == NULL || add_symbol_segment == absolute_section)
4217 if (add_symbolP != NULL)
4219 add_number += S_GET_VALUE (add_symbolP);
4221 fixP->fx_addsy = NULL;
4224 /* It's just -sym. */
4225 if (S_GET_SEGMENT (sub_symbolP) == absolute_section)
4227 add_number -= S_GET_VALUE (sub_symbolP);
4234 as_bad_where (fixP->fx_file, fixP->fx_line,
4235 _("Negative of non-absolute symbol %s"),
4236 S_GET_NAME (sub_symbolP));
4238 add_number -= S_GET_VALUE (sub_symbolP);
4239 } /* not absolute */
4241 /* if sub_symbol is in the same segment that add_symbol
4242 and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE */
4244 else if (S_GET_SEGMENT (sub_symbolP) == add_symbol_segment
4245 && SEG_NORMAL (add_symbol_segment))
4247 /* Difference of 2 symbols from same segment. Can't
4248 make difference of 2 undefineds: 'value' means
4249 something different for N_UNDF. */
4251 /* Makes no sense to use the difference of 2 arbitrary symbols
4252 as the target of a call instruction. */
4255 as_bad_where (fixP->fx_file, fixP->fx_line,
4256 _("callj to difference of 2 symbols"));
4258 #endif /* TC_I960 */
4259 add_number += S_GET_VALUE (add_symbolP) -
4260 S_GET_VALUE (sub_symbolP);
4263 if (!TC_FORCE_RELOCATION (fixP))
4265 fixP->fx_addsy = NULL;
4266 fixP->fx_subsy = NULL;
4268 #ifdef TC_M68K /* is this right? */
4276 /* Different segments in subtraction. */
4277 know (!(S_IS_EXTERNAL (sub_symbolP) && (S_GET_SEGMENT (sub_symbolP) == absolute_section)));
4279 if ((S_GET_SEGMENT (sub_symbolP) == absolute_section))
4281 add_number -= S_GET_VALUE (sub_symbolP);
4284 else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type
4285 #if 0 /* Okay for 68k, at least... */
4290 /* Make it pc-relative. */
4291 add_number += (md_pcrel_from (fixP)
4292 - S_GET_VALUE (sub_symbolP));
4301 as_bad_where (fixP->fx_file, fixP->fx_line,
4302 _("Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %ld."),
4303 segment_name (S_GET_SEGMENT (sub_symbolP)),
4304 S_GET_NAME (sub_symbolP),
4305 (long) (fragP->fr_address + where));
4308 } /* if sub_symbolP */
4312 if (add_symbol_segment == this_segment_type && pcrel)
4315 * This fixup was made when the symbol's segment was
4316 * SEG_UNKNOWN, but it is now in the local segment.
4317 * So we know how to do the address without relocation.
4320 /* reloc_callj() may replace a 'call' with a 'calls' or a 'bal',
4321 * in which cases it modifies *fixP as appropriate. In the case
4322 * of a 'calls', no further work is required, and *fixP has been
4323 * set up to make the rest of the code below a no-op.
4326 #endif /* TC_I960 */
4328 add_number += S_GET_VALUE (add_symbolP);
4329 add_number -= md_pcrel_from (fixP);
4332 add_number -= segP->scnhdr.s_vaddr;
4333 if defined (TC_I386) || defined (TE_LYNX). I now
4334 think that was an error propagated from the case when
4335 we are going to emit the relocation. If we are not
4336 going to emit the relocation, then we just want to
4337 set add_number to the difference between the symbols.
4338 This is a case that would only arise when there is a
4339 PC relative reference from a section other than .text
4340 to a symbol defined in the same section, and the
4341 reference is not relaxed. Since jump instructions on
4342 the i386 are relaxed, this could only arise with a
4343 call instruction. */
4345 pcrel = 0; /* Lie. Don't want further pcrel processing. */
4346 if (!TC_FORCE_RELOCATION (fixP))
4348 fixP->fx_addsy = NULL;
4354 switch (add_symbol_segment)
4356 case absolute_section:
4358 reloc_callj (fixP); /* See comment about reloc_callj() above*/
4359 #endif /* TC_I960 */
4360 add_number += S_GET_VALUE (add_symbolP);
4363 if (!TC_FORCE_RELOCATION (fixP))
4365 fixP->fx_addsy = NULL;
4372 #if defined(TC_A29K) || (defined(TE_PE) && defined(TC_I386)) || defined(TC_M88K)
4373 /* This really should be handled in the linker, but
4374 backward compatibility forbids. */
4375 add_number += S_GET_VALUE (add_symbolP);
4377 add_number += S_GET_VALUE (add_symbolP) +
4378 segment_info[S_GET_SEGMENT (add_symbolP)].scnhdr.s_paddr;
4384 if ((int) fixP->fx_bit_fixP == 13)
4386 /* This is a COBR instruction. They have only a
4387 * 13-bit displacement and are only to be used
4388 * for local branches: flag as error, don't generate
4391 as_bad_where (fixP->fx_file, fixP->fx_line,
4392 _("can't use COBR format with external label"));
4393 fixP->fx_addsy = NULL;
4397 #endif /* TC_I960 */
4398 #if ((defined (TC_I386) || defined (TE_LYNX) || defined (TE_AUX)) && !defined(TE_PE)) || defined (COFF_COMMON_ADDEND)
4399 /* 386 COFF uses a peculiar format in which the
4400 value of a common symbol is stored in the .text
4401 segment (I've checked this on SVR3.2 and SCO
4402 3.2.2) Ian Taylor <ian@cygnus.com>. */
4403 /* This is also true for 68k COFF on sysv machines
4404 (Checked on Motorola sysv68 R3V6 and R3V7.1, and also on
4405 UNIX System V/M68000, Release 1.0 from ATT/Bell Labs)
4406 Philippe De Muyter <phdm@info.ucl.ac.be>. */
4407 if (S_IS_COMMON (add_symbolP))
4408 add_number += S_GET_VALUE (add_symbolP);
4413 } /* switch on symbol seg */
4414 } /* if not in local seg */
4415 } /* if there was a + symbol */
4419 #if !defined(TC_M88K) && !(defined(TE_PE) && defined(TC_I386)) && !defined(TC_A29K)
4420 /* This adjustment is not correct on the m88k, for which the
4421 linker does all the computation. */
4422 add_number -= md_pcrel_from (fixP);
4424 if (add_symbolP == 0)
4426 fixP->fx_addsy = &abs_symbol;
4427 } /* if there's an add_symbol */
4428 #if defined (TC_I386) || defined (TE_LYNX) || defined (TC_I960) || defined (TC_M68K)
4429 /* On the 386 we must adjust by the segment vaddr as well.
4432 I changed the i960 to work this way as well. This is
4433 compatible with the current GNU linker behaviour. I do
4434 not know what other i960 COFF assemblers do. This is not
4435 a common case: normally, only assembler code will contain
4436 a PC relative reloc, and only branches which do not
4437 originate in the .text section will have a non-zero
4440 I changed the m68k to work this way as well. This will
4441 break existing PC relative relocs from sections which do
4442 not start at address 0, but it will make ld -r work.
4443 Ian Taylor, 4 Oct 96. */
4445 add_number -= segP->scnhdr.s_vaddr;
4449 #ifdef MD_APPLY_FIX3
4450 md_apply_fix3 (fixP, (valueT *) &add_number, this_segment_type);
4452 md_apply_fix (fixP, add_number);
4455 if (!fixP->fx_bit_fixP && ! fixP->fx_no_overflow)
4458 /* The m88k uses the offset field of the reloc to get around
4461 && ((add_number & ~0xFF)
4462 || (fixP->fx_signed && (add_number & 0x80)))
4463 && ((add_number & ~0xFF) != (-1 & ~0xFF)
4464 || (add_number & 0x80) == 0))
4466 && ((add_number & ~0xFFFF)
4467 || (fixP->fx_signed && (add_number & 0x8000)))
4468 && ((add_number & ~0xFFFF) != (-1 & ~0xFFFF)
4469 || (add_number & 0x8000) == 0)))
4471 as_bad_where (fixP->fx_file, fixP->fx_line,
4472 _("Value of %ld too large for field of %d bytes at 0x%lx"),
4473 (long) add_number, size,
4474 (unsigned long) (fragP->fr_address + where));
4477 #ifdef WARN_SIGNED_OVERFLOW_WORD
4478 /* Warn if a .word value is too large when treated as a
4479 signed number. We already know it is not too negative.
4480 This is to catch over-large switches generated by gcc on
4482 if (!flag_signed_overflow_ok
4484 && add_number > 0x7fff)
4485 as_bad_where (fixP->fx_file, fixP->fx_line,
4486 _("Signed .word overflow; switch may be too large; %ld at 0x%lx"),
4488 (unsigned long) (fragP->fr_address + where));
4490 } /* not a bit fix */
4491 } /* For each fixS in this segment. */
4492 } /* fixup_segment() */
4496 /* The first entry in a .stab section is special. */
4499 obj_coff_init_stab_section (seg)
4505 unsigned int stroff;
4507 /* Make space for this first symbol. */
4511 as_where (&file, (unsigned int *) NULL);
4512 stabstr_name = (char *) alloca (strlen (segment_info[seg].name) + 4);
4513 strcpy (stabstr_name, segment_info[seg].name);
4514 strcat (stabstr_name, "str");
4515 stroff = get_stab_string_offset (file, stabstr_name);
4517 md_number_to_chars (p, stroff, 4);
4520 /* Fill in the counts in the first entry in a .stab section. */
4523 adjust_stab_section(abfd, seg)
4527 segT stabstrseg = SEG_UNKNOWN;
4528 const char *secname, *name2;
4531 int i, strsz = 0, nsyms;
4532 fragS *frag = segment_info[seg].frchainP->frch_root;
4534 /* Look for the associated string table section. */
4536 secname = segment_info[seg].name;
4537 name = (char *) alloca (strlen (secname) + 4);
4538 strcpy (name, secname);
4539 strcat (name, "str");
4541 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
4543 name2 = segment_info[i].name;
4544 if (name2 != NULL && strncmp(name2, name, 8) == 0)
4551 /* If we found the section, get its size. */
4552 if (stabstrseg != SEG_UNKNOWN)
4553 strsz = size_section (abfd, stabstrseg);
4555 nsyms = size_section (abfd, seg) / 12 - 1;
4557 /* Look for the first frag of sufficient size for the initial stab
4558 symbol, and collect a pointer to it. */
4559 while (frag && frag->fr_fix < 12)
4560 frag = frag->fr_next;
4562 p = frag->fr_literal;
4565 /* Write in the number of stab symbols and the size of the string
4567 bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6);
4568 bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8);
4571 #endif /* not BFD_ASSEMBLER */
4573 const pseudo_typeS coff_pseudo_table[] =
4575 {"def", obj_coff_def, 0},
4576 {"dim", obj_coff_dim, 0},
4577 {"endef", obj_coff_endef, 0},
4578 {"line", obj_coff_line, 0},
4579 {"ln", obj_coff_ln, 0},
4580 #ifdef BFD_ASSEMBLER
4581 {"loc", obj_coff_loc, 0},
4583 {"appline", obj_coff_ln, 1},
4584 {"scl", obj_coff_scl, 0},
4585 {"size", obj_coff_size, 0},
4586 {"tag", obj_coff_tag, 0},
4587 {"type", obj_coff_type, 0},
4588 {"val", obj_coff_val, 0},
4589 {"section", obj_coff_section, 0},
4590 {"sect", obj_coff_section, 0},
4591 /* FIXME: We ignore the MRI short attribute. */
4592 {"section.s", obj_coff_section, 0},
4593 {"sect.s", obj_coff_section, 0},
4594 /* We accept the .bss directive for backward compatibility with
4595 earlier versions of gas. */
4596 {"bss", obj_coff_bss, 0},
4597 {"weak", obj_coff_weak, 0},
4598 {"ident", obj_coff_ident, 0},
4599 #ifndef BFD_ASSEMBLER
4600 {"use", obj_coff_section, 0},
4601 {"text", obj_coff_text, 0},
4602 {"data", obj_coff_data, 0},
4603 {"lcomm", obj_coff_lcomm, 0},
4605 {"optim", s_ignore, 0}, /* For sun386i cc (?) */
4607 {"version", s_ignore, 0},
4608 {"ABORT", s_abort, 0},
4610 /* The m88k uses sdef instead of def. */
4611 {"sdef", obj_coff_def, 0},
4613 {NULL, NULL, 0} /* end sentinel */
4614 }; /* coff_pseudo_table */
4616 #ifdef BFD_ASSEMBLER
4618 /* Support for a COFF emulation. */
4620 static void coff_pop_insert PARAMS ((void));
4621 static int coff_separate_stab_sections PARAMS ((void));
4626 pop_insert (coff_pseudo_table);
4630 coff_separate_stab_sections ()
4635 const struct format_ops coff_format_ops =
4637 bfd_target_coff_flavour,
4638 0, /* dfl_leading_underscore */
4639 1, /* emit_section_symbols */
4644 coff_frob_file_after_relocs,
4647 0, /* s_get_align */
4648 0, /* s_set_align */
4649 0, /* s_get_other */
4650 0, /* s_set_other */
4655 0, /* copy_symbol_attributes */
4656 0, /* generate_asm_lineno */
4657 0, /* process_stab */
4658 coff_separate_stab_sections,
4659 obj_coff_init_stab_section,
4660 0, /* sec_sym_ok_for_reloc */
4662 0, /* ecoff_set_ext */
4663 coff_obj_read_begin_hook,
4664 coff_obj_symbol_new_hook