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;
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 && S_GET_STORAGE_CLASS (symp) != C_LABEL
1143 && symbol_constant_p(symp)
1144 && (real = symbol_find_base (S_GET_NAME (symp), DO_NOT_STRIP))
1147 c_symbol_merge (symp, real);
1151 if (!S_IS_DEFINED (symp) && !SF_GET_LOCAL (symp))
1153 assert (S_GET_VALUE (symp) == 0);
1154 S_SET_EXTERNAL (symp);
1156 else if (S_GET_STORAGE_CLASS (symp) == C_NULL)
1158 if (S_GET_SEGMENT (symp) == text_section
1159 && symp != seg_info (text_section)->sym)
1160 S_SET_STORAGE_CLASS (symp, C_LABEL);
1162 S_SET_STORAGE_CLASS (symp, C_STAT);
1164 if (SF_GET_PROCESS (symp))
1166 if (S_GET_STORAGE_CLASS (symp) == C_BLOCK)
1168 if (!strcmp (S_GET_NAME (symp), ".bb"))
1169 stack_push (block_stack, (char *) &symp);
1173 begin = *(symbolS **) stack_pop (block_stack);
1175 as_warn (_("mismatched .eb"));
1177 next_set_end = begin;
1180 if (coff_last_function == 0 && SF_GET_FUNCTION (symp))
1182 union internal_auxent *auxp;
1183 coff_last_function = symp;
1184 if (S_GET_NUMBER_AUXILIARY (symp) < 1)
1185 S_SET_NUMBER_AUXILIARY (symp, 1);
1186 auxp = SYM_AUXENT (symp);
1187 memset (auxp->x_sym.x_fcnary.x_ary.x_dimen, 0,
1188 sizeof (auxp->x_sym.x_fcnary.x_ary.x_dimen));
1190 if (S_GET_STORAGE_CLASS (symp) == C_EFCN)
1192 if (coff_last_function == 0)
1193 as_fatal (_("C_EFCN symbol out of scope"));
1194 SA_SET_SYM_FSIZE (coff_last_function,
1195 (long) (S_GET_VALUE (symp)
1196 - S_GET_VALUE (coff_last_function)));
1197 next_set_end = coff_last_function;
1198 coff_last_function = 0;
1201 if (S_IS_EXTERNAL (symp))
1202 S_SET_STORAGE_CLASS (symp, C_EXT);
1203 else if (SF_GET_LOCAL (symp))
1206 if (SF_GET_FUNCTION (symp))
1207 symbol_get_bfdsym (symp)->flags |= BSF_FUNCTION;
1212 /* Double check weak symbols. */
1213 if (S_IS_WEAK (symp) && S_IS_COMMON (symp))
1214 as_bad (_("Symbol `%s' can not be both weak and common"),
1217 if (SF_GET_TAG (symp))
1219 else if (S_GET_STORAGE_CLASS (symp) == C_EOS)
1220 next_set_end = last_tagP;
1223 /* This is pretty horrible, but we have to set *punt correctly in
1224 order to call SA_SET_SYM_ENDNDX correctly. */
1225 if (! symbol_used_in_reloc_p (symp)
1226 && ((symbol_get_bfdsym (symp)->flags & BSF_SECTION_SYM) != 0
1227 || (! S_IS_EXTERNAL (symp)
1228 && ! symbol_get_tc (symp)->output
1229 && S_GET_STORAGE_CLASS (symp) != C_FILE)))
1233 if (set_end != (symbolS *) NULL
1235 && ((symbol_get_bfdsym (symp)->flags & BSF_NOT_AT_END) != 0
1236 || (S_IS_DEFINED (symp)
1237 && ! S_IS_COMMON (symp)
1238 && (! S_IS_EXTERNAL (symp) || SF_GET_FUNCTION (symp)))))
1240 SA_SET_SYM_ENDNDX (set_end, symp);
1244 if (next_set_end != NULL)
1246 if (set_end != NULL)
1247 as_warn ("Warning: internal error: forgetting to set endndx of %s",
1248 S_GET_NAME (set_end));
1249 set_end = next_set_end;
1253 && S_GET_STORAGE_CLASS (symp) == C_FCN
1254 && strcmp (S_GET_NAME (symp), ".bf") == 0)
1256 if (coff_last_bf != NULL)
1257 SA_SET_SYM_ENDNDX (coff_last_bf, symp);
1258 coff_last_bf = symp;
1261 if (coffsymbol (symbol_get_bfdsym (symp))->lineno)
1264 struct line_no *lptr;
1267 lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno;
1268 for (i = 0; lptr; lptr = lptr->next)
1270 lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno;
1272 /* We need i entries for line numbers, plus 1 for the first
1273 entry which BFD will override, plus 1 for the last zero
1274 entry (a marker for BFD). */
1275 l = (alent *) xmalloc ((i + 2) * sizeof (alent));
1276 coffsymbol (symbol_get_bfdsym (symp))->lineno = l;
1277 l[i + 1].line_number = 0;
1278 l[i + 1].u.sym = NULL;
1282 lptr->l.u.offset += lptr->frag->fr_address / OCTETS_PER_BYTE;
1290 coff_adjust_section_syms (abfd, sec, x)
1291 bfd *abfd ATTRIBUTE_UNUSED;
1293 PTR x ATTRIBUTE_UNUSED;
1296 segment_info_type *seginfo = seg_info (sec);
1297 int nlnno, nrelocs = 0;
1299 /* RS/6000 gas creates a .debug section manually in ppc_frob_file in
1300 tc-ppc.c. Do not get confused by it. */
1301 if (seginfo == NULL)
1304 if (!strcmp (sec->name, ".text"))
1305 nlnno = coff_n_line_nos;
1309 /* @@ Hope that none of the fixups expand to more than one reloc
1311 fixS *fixp = seginfo->fix_root;
1314 if (! fixp->fx_done)
1316 fixp = fixp->fx_next;
1319 if (bfd_get_section_size_before_reloc (sec) == 0
1322 && sec != text_section
1323 && sec != data_section
1324 && sec != bss_section)
1326 secsym = section_symbol (sec);
1327 /* This is an estimate; we'll plug in the real value using
1328 SET_SECTION_RELOCS later */
1329 SA_SET_SCN_NRELOC (secsym, nrelocs);
1330 SA_SET_SCN_NLINNO (secsym, nlnno);
1334 coff_frob_file_after_relocs ()
1336 bfd_map_over_sections (stdoutput, coff_adjust_section_syms, (char*) 0);
1340 * implement the .section pseudo op:
1341 * .section name {, "flags"}
1343 * | +--- optional flags: 'b' for bss
1345 * +-- section name 'l' for lib
1349 * 'd' (apparently m88k for data)
1351 * 'r' for read-only data
1352 * 's' for shared data (PE)
1353 * But if the argument is not a quoted string, treat it as a
1354 * subsegment number.
1358 obj_coff_section (ignore)
1359 int ignore ATTRIBUTE_UNUSED;
1361 /* Strip out the section name */
1366 flagword flags, oldflags;
1377 section_name = input_line_pointer;
1378 c = get_symbol_end ();
1380 name = xmalloc (input_line_pointer - section_name + 1);
1381 strcpy (name, section_name);
1383 *input_line_pointer = c;
1388 flags = SEC_NO_FLAGS;
1390 if (*input_line_pointer == ',')
1392 ++input_line_pointer;
1394 if (*input_line_pointer != '"')
1395 exp = get_absolute_expression ();
1398 ++input_line_pointer;
1399 while (*input_line_pointer != '"'
1400 && ! is_end_of_line[(unsigned char) *input_line_pointer])
1402 switch (*input_line_pointer)
1404 case 'b': flags |= SEC_ALLOC; flags &=~ SEC_LOAD; break;
1405 case 'n': flags &=~ SEC_LOAD; break;
1406 case 'd': flags |= SEC_DATA | SEC_LOAD; /* fall through */
1407 case 'w': flags &=~ SEC_READONLY; break;
1408 case 'x': flags |= SEC_CODE | SEC_LOAD; break;
1409 case 'r': flags |= SEC_READONLY; break;
1410 case 's': flags |= SEC_SHARED; break;
1412 case 'i': /* STYP_INFO */
1413 case 'l': /* STYP_LIB */
1414 case 'o': /* STYP_OVER */
1415 as_warn (_("unsupported section attribute '%c'"),
1416 *input_line_pointer);
1420 as_warn(_("unknown section attribute '%c'"),
1421 *input_line_pointer);
1424 ++input_line_pointer;
1426 if (*input_line_pointer == '"')
1427 ++input_line_pointer;
1431 sec = subseg_new (name, (subsegT) exp);
1433 oldflags = bfd_get_section_flags (stdoutput, sec);
1434 if (oldflags == SEC_NO_FLAGS)
1436 /* Set section flags for a new section just created by subseg_new.
1437 Provide a default if no flags were parsed. */
1438 if (flags == SEC_NO_FLAGS)
1439 flags = TC_COFF_SECTION_DEFAULT_ATTRIBUTES;
1441 #ifdef COFF_LONG_SECTION_NAMES
1442 /* Add SEC_LINK_ONCE and SEC_LINK_DUPLICATES_DISCARD to .gnu.linkonce
1443 sections so adjust_reloc_syms in write.c will correctly handle
1444 relocs which refer to non-local symbols in these sections. */
1445 if (strncmp (name, ".gnu.linkonce", sizeof(".gnu.linkonce") - 1) == 0)
1446 flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1449 if (! bfd_set_section_flags (stdoutput, sec, flags))
1450 as_warn (_("error setting flags for \"%s\": %s"),
1451 bfd_section_name (stdoutput, sec),
1452 bfd_errmsg (bfd_get_error ()));
1454 else if (flags != SEC_NO_FLAGS)
1456 /* This section's attributes have already been set. Warn if the
1457 attributes don't match. */
1458 flagword matchflags = SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
1459 | SEC_DATA | SEC_SHARED;
1460 if ((flags ^ oldflags) & matchflags)
1461 as_warn (_("Ignoring changed section attributes for %s"), name);
1464 demand_empty_rest_of_line ();
1468 coff_adjust_symtab ()
1470 if (symbol_rootP == NULL
1471 || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
1472 c_dot_file_symbol ("fake");
1476 coff_frob_section (sec)
1482 bfd_vma size, n_entries, mask;
1483 bfd_vma align_power = (bfd_vma)sec->alignment_power + OCTETS_PER_BYTE_POWER;
1485 /* The COFF back end in BFD requires that all section sizes be
1486 rounded up to multiples of the corresponding section alignments,
1487 supposedly because standard COFF has no other way of encoding alignment
1488 for sections. If your COFF flavor has a different way of encoding
1489 section alignment, then skip this step, as TICOFF does. */
1490 size = bfd_get_section_size_before_reloc (sec);
1491 mask = ((bfd_vma) 1 << align_power) - 1;
1492 #if !defined(TICOFF)
1498 new_size = (size + mask) & ~mask;
1499 bfd_set_section_size (stdoutput, sec, new_size);
1501 /* If the size had to be rounded up, add some padding in
1502 the last non-empty frag. */
1503 fragp = seg_info (sec)->frchainP->frch_root;
1504 last = seg_info (sec)->frchainP->frch_last;
1505 while (fragp->fr_next != last)
1506 fragp = fragp->fr_next;
1507 last->fr_address = size;
1508 fragp->fr_offset += new_size - size;
1512 /* If the section size is non-zero, the section symbol needs an aux
1513 entry associated with it, indicating the size. We don't know
1514 all the values yet; coff_frob_symbol will fill them in later. */
1517 || sec == text_section
1518 || sec == data_section
1519 || sec == bss_section)
1522 symbolS *secsym = section_symbol (sec);
1524 S_SET_STORAGE_CLASS (secsym, C_STAT);
1525 S_SET_NUMBER_AUXILIARY (secsym, 1);
1526 SF_SET_STATICS (secsym);
1527 SA_SET_SCN_SCNLEN (secsym, size);
1530 /* @@ these should be in a "stabs.h" file, or maybe as.h */
1531 #ifndef STAB_SECTION_NAME
1532 #define STAB_SECTION_NAME ".stab"
1534 #ifndef STAB_STRING_SECTION_NAME
1535 #define STAB_STRING_SECTION_NAME ".stabstr"
1537 if (strcmp (STAB_STRING_SECTION_NAME, sec->name))
1541 sec = subseg_get (STAB_SECTION_NAME, 0);
1542 /* size is already rounded up, since other section will be listed first */
1543 size = bfd_get_section_size_before_reloc (strsec);
1545 n_entries = bfd_get_section_size_before_reloc (sec) / 12 - 1;
1547 /* Find first non-empty frag. It should be large enough. */
1548 fragp = seg_info (sec)->frchainP->frch_root;
1549 while (fragp && fragp->fr_fix == 0)
1550 fragp = fragp->fr_next;
1551 assert (fragp != 0 && fragp->fr_fix >= 12);
1553 /* Store the values. */
1554 p = fragp->fr_literal;
1555 bfd_h_put_16 (stdoutput, n_entries, (bfd_byte *) p + 6);
1556 bfd_h_put_32 (stdoutput, size, (bfd_byte *) p + 8);
1560 obj_coff_init_stab_section (seg)
1566 unsigned int stroff;
1568 /* Make space for this first symbol. */
1572 as_where (&file, (unsigned int *) NULL);
1573 stabstr_name = (char *) alloca (strlen (seg->name) + 4);
1574 strcpy (stabstr_name, seg->name);
1575 strcat (stabstr_name, "str");
1576 stroff = get_stab_string_offset (file, stabstr_name);
1578 md_number_to_chars (p, stroff, 4);
1587 return ((s == NULL) ? "(NULL)" : S_GET_NAME (s));
1595 for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
1597 printf(_("0x%lx: \"%s\" type = %ld, class = %d, segment = %d\n"),
1598 (unsigned long) symbolP,
1599 S_GET_NAME(symbolP),
1600 (long) S_GET_DATA_TYPE(symbolP),
1601 S_GET_STORAGE_CLASS(symbolP),
1602 (int) S_GET_SEGMENT(symbolP));
1608 #else /* not BFD_ASSEMBLER */
1611 /* This is needed because we include internal bfd things. */
1615 #include "libcoff.h"
1618 #include "coff/pe.h"
1621 /* The NOP_OPCODE is for the alignment fill value. Fill with nop so
1622 that we can stick sections together without causing trouble. */
1624 #define NOP_OPCODE 0x00
1627 /* The zeroes if symbol name is longer than 8 chars */
1628 #define S_SET_ZEROES(s,v) ((s)->sy_symbol.ost_entry.n_zeroes = (v))
1630 #define MIN(a,b) ((a) < (b)? (a) : (b))
1632 /* This vector is used to turn a gas internal segment number into a
1633 section number suitable for insertion into a coff symbol table.
1634 This must correspond to seg_info_off_by_4. */
1636 const short seg_N_TYPE[] =
1637 { /* in: segT out: N_TYPE bits */
1639 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
1640 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
1641 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
1642 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
1643 C_UNDEF_SECTION, /* SEG_UNKNOWN */
1644 C_UNDEF_SECTION, /* SEG_GOOF */
1645 C_UNDEF_SECTION, /* SEG_EXPR */
1646 C_DEBUG_SECTION, /* SEG_DEBUG */
1647 C_NTV_SECTION, /* SEG_NTV */
1648 C_PTV_SECTION, /* SEG_PTV */
1649 C_REGISTER_SECTION, /* SEG_REGISTER */
1652 int function_lineoff = -1; /* Offset in line#s where the last function
1653 started (the odd entry for line #0) */
1655 /* structure used to keep the filenames which
1656 are too long around so that we can stick them
1657 into the string table */
1658 struct filename_list
1661 struct filename_list *next;
1664 static struct filename_list *filename_list_head;
1665 static struct filename_list *filename_list_tail;
1667 static symbolS *last_line_symbol;
1669 /* Add 4 to the real value to get the index and compensate the
1670 negatives. This vector is used by S_GET_SEGMENT to turn a coff
1671 section number into a segment number
1673 static symbolS *previous_file_symbol;
1674 void c_symbol_merge ();
1675 static int line_base;
1677 symbolS *c_section_symbol ();
1680 static void fixup_segment PARAMS ((segment_info_type *segP,
1681 segT this_segment_type));
1684 static void fixup_mdeps PARAMS ((fragS *,
1689 static void fill_section PARAMS ((bfd * abfd,
1694 static int c_line_new PARAMS ((symbolS * symbol, long paddr,
1699 static void w_symbols PARAMS ((bfd * abfd, char *where,
1700 symbolS * symbol_rootP));
1702 static void adjust_stab_section PARAMS ((bfd *abfd, segT seg));
1704 static void obj_coff_lcomm PARAMS ((int));
1705 static void obj_coff_text PARAMS ((int));
1706 static void obj_coff_data PARAMS ((int));
1707 void obj_coff_section PARAMS ((int));
1709 /* When not using BFD_ASSEMBLER, we permit up to 40 sections.
1711 This array maps a COFF section number into a gas section number.
1712 Because COFF uses negative section numbers, you must add 4 to the
1713 COFF section number when indexing into this array; this is done via
1714 the SEG_INFO_FROM_SECTION_NUMBER macro. This must correspond to
1717 static const segT seg_info_off_by_4[] =
1724 SEG_E0, SEG_E1, SEG_E2, SEG_E3, SEG_E4,
1725 SEG_E5, SEG_E6, SEG_E7, SEG_E8, SEG_E9,
1726 SEG_E10, SEG_E11, SEG_E12, SEG_E13, SEG_E14,
1727 SEG_E15, SEG_E16, SEG_E17, SEG_E18, SEG_E19,
1728 SEG_E20, SEG_E21, SEG_E22, SEG_E23, SEG_E24,
1729 SEG_E25, SEG_E26, SEG_E27, SEG_E28, SEG_E29,
1730 SEG_E30, SEG_E31, SEG_E32, SEG_E33, SEG_E34,
1731 SEG_E35, SEG_E36, SEG_E37, SEG_E38, SEG_E39,
1744 #define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4])
1746 static relax_addressT
1747 relax_align (address, alignment)
1748 relax_addressT address;
1751 relax_addressT mask;
1752 relax_addressT new_address;
1754 mask = ~((~0) << alignment);
1755 new_address = (address + mask) & (~mask);
1756 return (new_address - address);
1764 return SEG_INFO_FROM_SECTION_NUMBER (x->sy_symbol.ost_entry.n_scnum);
1767 /* calculate the size of the frag chain and fill in the section header
1768 to contain all of it, also fill in the addr of the sections */
1770 size_section (abfd, idx)
1771 bfd *abfd ATTRIBUTE_UNUSED;
1775 unsigned int size = 0;
1776 fragS *frag = segment_info[idx].frchainP->frch_root;
1779 size = frag->fr_address;
1780 if (frag->fr_address != size)
1782 fprintf (stderr, _("Out of step\n"));
1783 size = frag->fr_address;
1786 switch (frag->fr_type)
1788 #ifdef TC_COFF_SIZEMACHDEP
1789 case rs_machine_dependent:
1790 size += TC_COFF_SIZEMACHDEP (frag);
1794 assert (frag->fr_symbol == 0);
1797 size += frag->fr_fix;
1798 size += frag->fr_offset * frag->fr_var;
1805 size += frag->fr_fix;
1806 off = relax_align (size, frag->fr_offset);
1807 if (frag->fr_subtype != 0 && off > frag->fr_subtype)
1813 BAD_CASE (frag->fr_type);
1816 frag = frag->fr_next;
1818 segment_info[idx].scnhdr.s_size = size;
1824 count_entries_in_chain (idx)
1827 unsigned int nrelocs;
1830 /* Count the relocations */
1831 fixup_ptr = segment_info[idx].fix_root;
1833 while (fixup_ptr != (fixS *) NULL)
1835 if (fixup_ptr->fx_done == 0 && TC_COUNT_RELOC (fixup_ptr))
1838 if (fixup_ptr->fx_r_type == RELOC_CONSTH)
1847 fixup_ptr = fixup_ptr->fx_next;
1854 static int compare_external_relocs PARAMS ((const PTR, const PTR));
1856 /* AUX's ld expects relocations to be sorted */
1858 compare_external_relocs (x, y)
1862 struct external_reloc *a = (struct external_reloc *) x;
1863 struct external_reloc *b = (struct external_reloc *) y;
1864 bfd_vma aadr = bfd_getb32 (a->r_vaddr);
1865 bfd_vma badr = bfd_getb32 (b->r_vaddr);
1866 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
1871 /* output all the relocations for a section */
1873 do_relocs_for (abfd, h, file_cursor)
1876 unsigned long *file_cursor;
1878 unsigned int nrelocs;
1880 unsigned long reloc_start = *file_cursor;
1882 for (idx = SEG_E0; idx < SEG_LAST; idx++)
1884 if (segment_info[idx].scnhdr.s_name[0])
1886 struct external_reloc *ext_ptr;
1887 struct external_reloc *external_reloc_vec;
1888 unsigned int external_reloc_size;
1889 unsigned int base = segment_info[idx].scnhdr.s_paddr;
1890 fixS *fix_ptr = segment_info[idx].fix_root;
1891 nrelocs = count_entries_in_chain (idx);
1894 /* Bypass this stuff if no relocs. This also incidentally
1895 avoids a SCO bug, where free(malloc(0)) tends to crash. */
1897 external_reloc_size = nrelocs * RELSZ;
1898 external_reloc_vec =
1899 (struct external_reloc *) malloc (external_reloc_size);
1901 ext_ptr = external_reloc_vec;
1903 /* Fill in the internal coff style reloc struct from the
1904 internal fix list. */
1907 struct internal_reloc intr;
1909 /* Only output some of the relocations */
1910 if (fix_ptr->fx_done == 0 && TC_COUNT_RELOC (fix_ptr))
1912 #ifdef TC_RELOC_MANGLE
1913 TC_RELOC_MANGLE (&segment_info[idx], fix_ptr, &intr,
1918 symbolS *symbol_ptr = fix_ptr->fx_addsy;
1920 intr.r_type = TC_COFF_FIX2RTYPE (fix_ptr);
1922 base + fix_ptr->fx_frag->fr_address + fix_ptr->fx_where;
1924 #ifdef TC_KEEP_FX_OFFSET
1925 intr.r_offset = fix_ptr->fx_offset;
1930 while (symbol_ptr->sy_value.X_op == O_symbol
1931 && (! S_IS_DEFINED (symbol_ptr)
1932 || S_IS_COMMON (symbol_ptr)))
1936 /* We must avoid looping, as that can occur
1937 with a badly written program. */
1938 n = symbol_ptr->sy_value.X_add_symbol;
1939 if (n == symbol_ptr)
1944 /* Turn the segment of the symbol into an offset. */
1947 resolve_symbol_value (symbol_ptr, 1);
1948 if (! symbol_ptr->sy_resolved)
1953 if (expr_symbol_where (symbol_ptr, &file, &line))
1954 as_bad_where (file, line,
1955 _("unresolved relocation"));
1957 as_bad (_("bad relocation: symbol `%s' not in symbol table"),
1958 S_GET_NAME (symbol_ptr));
1960 dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot;
1963 intr.r_symndx = dot->sy_number;
1967 intr.r_symndx = symbol_ptr->sy_number;
1977 (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr);
1980 #if defined(TC_A29K)
1982 /* The 29k has a special kludge for the high 16 bit
1983 reloc. Two relocations are emited, R_IHIHALF,
1984 and R_IHCONST. The second one doesn't contain a
1985 symbol, but uses the value for offset. */
1987 if (intr.r_type == R_IHIHALF)
1989 /* now emit the second bit */
1990 intr.r_type = R_IHCONST;
1991 intr.r_symndx = fix_ptr->fx_addnumber;
1992 (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr);
1998 fix_ptr = fix_ptr->fx_next;
2002 /* Sort the reloc table */
2003 qsort ((PTR) external_reloc_vec, nrelocs,
2004 sizeof (struct external_reloc), compare_external_relocs);
2007 /* Write out the reloc table */
2008 bfd_write ((PTR) external_reloc_vec, 1, external_reloc_size,
2010 free (external_reloc_vec);
2012 /* Fill in section header info. */
2013 segment_info[idx].scnhdr.s_relptr = *file_cursor;
2014 *file_cursor += external_reloc_size;
2015 segment_info[idx].scnhdr.s_nreloc = nrelocs;
2020 segment_info[idx].scnhdr.s_relptr = 0;
2024 /* Set relocation_size field in file headers */
2025 H_SET_RELOCATION_SIZE (h, *file_cursor - reloc_start, 0);
2029 /* run through a frag chain and write out the data to go with it, fill
2030 in the scnhdrs with the info on the file postions
2033 fill_section (abfd, h, file_cursor)
2035 object_headers *h ATTRIBUTE_UNUSED;
2036 unsigned long *file_cursor;
2040 unsigned int paddr = 0;
2042 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
2044 unsigned int offset = 0;
2045 struct internal_scnhdr *s = &(segment_info[i].scnhdr);
2051 fragS *frag = segment_info[i].frchainP->frch_root;
2058 buffer = xmalloc (s->s_size);
2059 s->s_scnptr = *file_cursor;
2061 know (s->s_paddr == paddr);
2063 if (strcmp (s->s_name, ".text") == 0)
2064 s->s_flags |= STYP_TEXT;
2065 else if (strcmp (s->s_name, ".data") == 0)
2066 s->s_flags |= STYP_DATA;
2067 else if (strcmp (s->s_name, ".bss") == 0)
2070 s->s_flags |= STYP_BSS;
2072 /* @@ Should make the i386 and a29k coff targets define
2073 COFF_NOLOAD_PROBLEM, and have only one test here. */
2076 #ifndef COFF_NOLOAD_PROBLEM
2077 /* Apparently the SVR3 linker (and exec syscall) and UDI
2078 mondfe progrem are confused by noload sections. */
2079 s->s_flags |= STYP_NOLOAD;
2084 else if (strcmp (s->s_name, ".lit") == 0)
2085 s->s_flags = STYP_LIT | STYP_TEXT;
2086 else if (strcmp (s->s_name, ".init") == 0)
2087 s->s_flags |= STYP_TEXT;
2088 else if (strcmp (s->s_name, ".fini") == 0)
2089 s->s_flags |= STYP_TEXT;
2090 else if (strncmp (s->s_name, ".comment", 8) == 0)
2091 s->s_flags |= STYP_INFO;
2095 unsigned int fill_size;
2096 switch (frag->fr_type)
2098 case rs_machine_dependent:
2101 memcpy (buffer + frag->fr_address,
2103 (unsigned int) frag->fr_fix);
2104 offset += frag->fr_fix;
2109 assert (frag->fr_symbol == 0);
2116 memcpy (buffer + frag->fr_address,
2118 (unsigned int) frag->fr_fix);
2119 offset += frag->fr_fix;
2122 fill_size = frag->fr_var;
2123 if (fill_size && frag->fr_offset > 0)
2126 unsigned int off = frag->fr_fix;
2127 for (count = frag->fr_offset; count; count--)
2129 if (fill_size + frag->fr_address + off <= s->s_size)
2131 memcpy (buffer + frag->fr_address + off,
2132 frag->fr_literal + frag->fr_fix,
2135 offset += fill_size;
2140 case rs_broken_word:
2145 frag = frag->fr_next;
2150 if (s->s_scnptr != 0)
2152 bfd_write (buffer, s->s_size, 1, abfd);
2153 *file_cursor += s->s_size;
2162 /* Coff file generation & utilities */
2165 coff_header_append (abfd, h)
2172 #ifdef COFF_LONG_SECTION_NAMES
2173 unsigned long string_size = 4;
2176 bfd_seek (abfd, 0, 0);
2178 #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
2179 H_SET_MAGIC_NUMBER (h, COFF_MAGIC);
2180 H_SET_VERSION_STAMP (h, 0);
2181 H_SET_ENTRY_POINT (h, 0);
2182 H_SET_TEXT_START (h, segment_info[SEG_E0].frchainP->frch_root->fr_address);
2183 H_SET_DATA_START (h, segment_info[SEG_E1].frchainP->frch_root->fr_address);
2184 H_SET_SIZEOF_OPTIONAL_HEADER (h, bfd_coff_swap_aouthdr_out(abfd, &h->aouthdr,
2186 #else /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */
2187 H_SET_SIZEOF_OPTIONAL_HEADER (h, 0);
2188 #endif /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */
2190 i = bfd_coff_swap_filehdr_out (abfd, &h->filehdr, buffer);
2192 bfd_write (buffer, i, 1, abfd);
2193 bfd_write (buffero, H_GET_SIZEOF_OPTIONAL_HEADER (h), 1, abfd);
2195 for (i = SEG_E0; i < SEG_LAST; i++)
2197 if (segment_info[i].scnhdr.s_name[0])
2201 #ifdef COFF_LONG_SECTION_NAMES
2202 /* Support long section names as found in PE. This code
2203 must coordinate with that in write_object_file and
2205 if (strlen (segment_info[i].name) > SCNNMLEN)
2207 memset (segment_info[i].scnhdr.s_name, 0, SCNNMLEN);
2208 sprintf (segment_info[i].scnhdr.s_name, "/%lu", string_size);
2209 string_size += strlen (segment_info[i].name) + 1;
2213 size = bfd_coff_swap_scnhdr_out (abfd,
2214 &(segment_info[i].scnhdr),
2217 as_bad (_("bfd_coff_swap_scnhdr_out failed"));
2218 bfd_write (buffer, size, 1, abfd);
2225 symbol_to_chars (abfd, where, symbolP)
2230 unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux;
2234 /* Turn any symbols with register attributes into abs symbols */
2235 if (S_GET_SEGMENT (symbolP) == reg_section)
2237 S_SET_SEGMENT (symbolP, absolute_section);
2239 /* At the same time, relocate all symbols to their output value */
2242 val = (segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_paddr
2243 + S_GET_VALUE (symbolP));
2245 val = S_GET_VALUE (symbolP);
2248 S_SET_VALUE (symbolP, val);
2250 symbolP->sy_symbol.ost_entry.n_value = val;
2252 where += bfd_coff_swap_sym_out (abfd, &symbolP->sy_symbol.ost_entry,
2255 for (i = 0; i < numaux; i++)
2257 where += bfd_coff_swap_aux_out (abfd,
2258 &symbolP->sy_symbol.ost_auxent[i],
2259 S_GET_DATA_TYPE (symbolP),
2260 S_GET_STORAGE_CLASS (symbolP),
2268 coff_obj_symbol_new_hook (symbolP)
2271 char underscore = 0; /* Symbol has leading _ */
2273 /* Effective symbol */
2274 /* Store the pointer in the offset. */
2275 S_SET_ZEROES (symbolP, 0L);
2276 S_SET_DATA_TYPE (symbolP, T_NULL);
2277 S_SET_STORAGE_CLASS (symbolP, 0);
2278 S_SET_NUMBER_AUXILIARY (symbolP, 0);
2279 /* Additional information */
2280 symbolP->sy_symbol.ost_flags = 0;
2281 /* Auxiliary entries */
2282 memset ((char *) &symbolP->sy_symbol.ost_auxent[0], 0, AUXESZ);
2284 if (S_IS_STRING (symbolP))
2285 SF_SET_STRING (symbolP);
2286 if (!underscore && S_IS_LOCAL (symbolP))
2287 SF_SET_LOCAL (symbolP);
2291 * Handle .ln directives.
2295 obj_coff_ln (appline)
2300 if (! appline && def_symbol_in_progress != NULL)
2302 as_warn (_(".ln pseudo-op inside .def/.endef: ignored."));
2303 demand_empty_rest_of_line ();
2305 } /* wrong context */
2307 l = get_absolute_expression ();
2308 c_line_new (0, frag_now_fix (), l, frag_now);
2311 new_logical_line ((char *) NULL, l - 1);
2321 listing_source_line ((unsigned int) l);
2326 demand_empty_rest_of_line ();
2332 * Handle .def directives.
2334 * One might ask : why can't we symbol_new if the symbol does not
2335 * already exist and fill it with debug information. Because of
2336 * the C_EFCN special symbol. It would clobber the value of the
2337 * function symbol before we have a chance to notice that it is
2338 * a C_EFCN. And a second reason is that the code is more clear this
2339 * way. (at least I think it is :-).
2343 #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';')
2344 #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \
2345 *input_line_pointer == '\t') \
2346 input_line_pointer++;
2350 int what ATTRIBUTE_UNUSED;
2352 char name_end; /* Char after the end of name */
2353 char *symbol_name; /* Name of the debug symbol */
2354 char *symbol_name_copy; /* Temporary copy of the name */
2355 unsigned int symbol_name_length;
2357 if (def_symbol_in_progress != NULL)
2359 as_warn (_(".def pseudo-op used inside of .def/.endef: ignored."));
2360 demand_empty_rest_of_line ();
2362 } /* if not inside .def/.endef */
2364 SKIP_WHITESPACES ();
2366 def_symbol_in_progress = (symbolS *) obstack_alloc (¬es, sizeof (*def_symbol_in_progress));
2367 memset (def_symbol_in_progress, 0, sizeof (*def_symbol_in_progress));
2369 symbol_name = input_line_pointer;
2370 name_end = get_symbol_end ();
2371 symbol_name_length = strlen (symbol_name);
2372 symbol_name_copy = xmalloc (symbol_name_length + 1);
2373 strcpy (symbol_name_copy, symbol_name);
2374 #ifdef tc_canonicalize_symbol_name
2375 symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy);
2378 /* Initialize the new symbol */
2379 #ifdef STRIP_UNDERSCORE
2380 S_SET_NAME (def_symbol_in_progress, (*symbol_name_copy == '_'
2381 ? symbol_name_copy + 1
2382 : symbol_name_copy));
2383 #else /* STRIP_UNDERSCORE */
2384 S_SET_NAME (def_symbol_in_progress, symbol_name_copy);
2385 #endif /* STRIP_UNDERSCORE */
2386 /* free(symbol_name_copy); */
2387 def_symbol_in_progress->sy_name_offset = (unsigned long) ~0;
2388 def_symbol_in_progress->sy_number = ~0;
2389 def_symbol_in_progress->sy_frag = &zero_address_frag;
2390 S_SET_VALUE (def_symbol_in_progress, 0);
2392 if (S_IS_STRING (def_symbol_in_progress))
2393 SF_SET_STRING (def_symbol_in_progress);
2395 *input_line_pointer = name_end;
2397 demand_empty_rest_of_line ();
2400 unsigned int dim_index;
2404 obj_coff_endef (ignore)
2405 int ignore ATTRIBUTE_UNUSED;
2407 symbolS *symbolP = 0;
2410 if (def_symbol_in_progress == NULL)
2412 as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored."));
2413 demand_empty_rest_of_line ();
2415 } /* if not inside .def/.endef */
2417 /* Set the section number according to storage class. */
2418 switch (S_GET_STORAGE_CLASS (def_symbol_in_progress))
2423 SF_SET_TAG (def_symbol_in_progress);
2424 /* intentional fallthrough */
2427 SF_SET_DEBUG (def_symbol_in_progress);
2428 S_SET_SEGMENT (def_symbol_in_progress, SEG_DEBUG);
2432 SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */
2433 /* intentional fallthrough */
2435 SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */
2436 /* intentional fallthrough */
2438 S_SET_SEGMENT (def_symbol_in_progress, SEG_E0);
2440 if (strcmp (S_GET_NAME (def_symbol_in_progress), ".bf") == 0)
2442 if (function_lineoff < 0)
2444 fprintf (stderr, _("`.bf' symbol without preceding function\n"));
2445 } /* missing function symbol */
2446 SA_GET_SYM_LNNOPTR (last_line_symbol) = function_lineoff;
2448 SF_SET_PROCESS (last_line_symbol);
2449 SF_SET_ADJ_LNNOPTR (last_line_symbol);
2450 SF_SET_PROCESS (def_symbol_in_progress);
2451 function_lineoff = -1;
2453 /* Value is always set to . */
2454 def_symbol_in_progress->sy_frag = frag_now;
2455 S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
2460 #endif /* C_AUTOARG */
2470 SF_SET_DEBUG (def_symbol_in_progress);
2471 S_SET_SEGMENT (def_symbol_in_progress, absolute_section);
2481 /* Valid but set somewhere else (s_comm, s_lcomm, colon) */
2487 as_warn (_("unexpected storage class %d"), S_GET_STORAGE_CLASS (def_symbol_in_progress));
2489 } /* switch on storage class */
2491 /* Now that we have built a debug symbol, try to find if we should
2492 merge with an existing symbol or not. If a symbol is C_EFCN or
2493 absolute_section or untagged SEG_DEBUG it never merges. We also
2494 don't merge labels, which are in a different namespace, nor
2495 symbols which have not yet been defined since they are typically
2496 unique, nor do we merge tags with non-tags. */
2498 /* Two cases for functions. Either debug followed by definition or
2499 definition followed by debug. For definition first, we will
2500 merge the debug symbol into the definition. For debug first, the
2501 lineno entry MUST point to the definition function or else it
2502 will point off into space when crawl_symbols() merges the debug
2503 symbol into the real symbol. Therefor, let's presume the debug
2504 symbol is a real function reference. */
2506 /* FIXME-SOON If for some reason the definition label/symbol is
2507 never seen, this will probably leave an undefined symbol at link
2510 if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN
2511 || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL
2512 || (S_GET_SEGMENT (def_symbol_in_progress) == SEG_DEBUG
2513 && !SF_GET_TAG (def_symbol_in_progress))
2514 || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section
2515 || def_symbol_in_progress->sy_value.X_op != O_constant
2516 || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP)) == NULL
2517 || (SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP)))
2519 symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP,
2524 /* This symbol already exists, merge the newly created symbol
2525 into the old one. This is not mandatory. The linker can
2526 handle duplicate symbols correctly. But I guess that it save
2527 a *lot* of space if the assembly file defines a lot of
2530 /* The debug entry (def_symbol_in_progress) is merged into the
2531 previous definition. */
2533 c_symbol_merge (def_symbol_in_progress, symbolP);
2534 /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */
2535 def_symbol_in_progress = symbolP;
2537 if (SF_GET_FUNCTION (def_symbol_in_progress)
2538 || SF_GET_TAG (def_symbol_in_progress)
2539 || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT)
2541 /* For functions, and tags, and static symbols, the symbol
2542 *must* be where the debug symbol appears. Move the
2543 existing symbol to the current place. */
2544 /* If it already is at the end of the symbol list, do nothing */
2545 if (def_symbol_in_progress != symbol_lastP)
2547 symbol_remove (def_symbol_in_progress, &symbol_rootP,
2549 symbol_append (def_symbol_in_progress, symbol_lastP,
2550 &symbol_rootP, &symbol_lastP);
2551 } /* if not already in place */
2553 } /* normal or mergable */
2555 if (SF_GET_TAG (def_symbol_in_progress))
2559 oldtag = symbol_find_base (S_GET_NAME (def_symbol_in_progress),
2561 if (oldtag == NULL || ! SF_GET_TAG (oldtag))
2562 tag_insert (S_GET_NAME (def_symbol_in_progress),
2563 def_symbol_in_progress);
2566 if (SF_GET_FUNCTION (def_symbol_in_progress))
2568 know (sizeof (def_symbol_in_progress) <= sizeof (long));
2570 = c_line_new (def_symbol_in_progress, 0, 0, &zero_address_frag);
2572 SF_SET_PROCESS (def_symbol_in_progress);
2574 if (symbolP == NULL)
2576 /* That is, if this is the first time we've seen the
2578 symbol_table_insert (def_symbol_in_progress);
2579 } /* definition follows debug */
2580 } /* Create the line number entry pointing to the function being defined */
2582 def_symbol_in_progress = NULL;
2583 demand_empty_rest_of_line ();
2587 obj_coff_dim (ignore)
2588 int ignore ATTRIBUTE_UNUSED;
2592 if (def_symbol_in_progress == NULL)
2594 as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored."));
2595 demand_empty_rest_of_line ();
2597 } /* if not inside .def/.endef */
2599 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
2601 for (dim_index = 0; dim_index < DIMNUM; dim_index++)
2603 SKIP_WHITESPACES ();
2604 SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index,
2605 get_absolute_expression ());
2607 switch (*input_line_pointer)
2610 input_line_pointer++;
2614 as_warn (_("badly formed .dim directive ignored"));
2615 /* intentional fallthrough */
2623 demand_empty_rest_of_line ();
2627 obj_coff_line (ignore)
2628 int ignore ATTRIBUTE_UNUSED;
2633 if (def_symbol_in_progress == NULL)
2639 name = S_GET_NAME (def_symbol_in_progress);
2640 this_base = get_absolute_expression ();
2642 /* Only .bf symbols indicate the use of a new base line number; the
2643 line numbers associated with .ef, .bb, .eb are relative to the
2644 start of the containing function. */
2645 if (!strcmp (".bf", name))
2647 #if 0 /* XXX Can we ever have line numbers going backwards? */
2648 if (this_base > line_base)
2651 line_base = this_base;
2659 listing_source_line ((unsigned int) line_base);
2665 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
2666 SA_SET_SYM_LNNO (def_symbol_in_progress, this_base);
2668 demand_empty_rest_of_line ();
2672 obj_coff_size (ignore)
2673 int ignore ATTRIBUTE_UNUSED;
2675 if (def_symbol_in_progress == NULL)
2677 as_warn (_(".size pseudo-op used outside of .def/.endef ignored."));
2678 demand_empty_rest_of_line ();
2680 } /* if not inside .def/.endef */
2682 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
2683 SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ());
2684 demand_empty_rest_of_line ();
2688 obj_coff_scl (ignore)
2689 int ignore ATTRIBUTE_UNUSED;
2691 if (def_symbol_in_progress == NULL)
2693 as_warn (_(".scl pseudo-op used outside of .def/.endef ignored."));
2694 demand_empty_rest_of_line ();
2696 } /* if not inside .def/.endef */
2698 S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ());
2699 demand_empty_rest_of_line ();
2703 obj_coff_tag (ignore)
2704 int ignore ATTRIBUTE_UNUSED;
2709 if (def_symbol_in_progress == NULL)
2711 as_warn (_(".tag pseudo-op used outside of .def/.endef ignored."));
2712 demand_empty_rest_of_line ();
2716 S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
2717 symbol_name = input_line_pointer;
2718 name_end = get_symbol_end ();
2719 #ifdef tc_canonicalize_symbol_name
2720 symbol_name = tc_canonicalize_symbol_name (symbol_name);
2723 /* Assume that the symbol referred to by .tag is always defined.
2724 This was a bad assumption. I've added find_or_make. xoxorich. */
2725 SA_SET_SYM_TAGNDX (def_symbol_in_progress,
2726 (long) tag_find_or_make (symbol_name));
2727 if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L)
2729 as_warn (_("tag not found for .tag %s"), symbol_name);
2732 SF_SET_TAGGED (def_symbol_in_progress);
2733 *input_line_pointer = name_end;
2735 demand_empty_rest_of_line ();
2739 obj_coff_type (ignore)
2740 int ignore ATTRIBUTE_UNUSED;
2742 if (def_symbol_in_progress == NULL)
2744 as_warn (_(".type pseudo-op used outside of .def/.endef ignored."));
2745 demand_empty_rest_of_line ();
2747 } /* if not inside .def/.endef */
2749 S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ());
2751 if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) &&
2752 S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF)
2754 SF_SET_FUNCTION (def_symbol_in_progress);
2755 } /* is a function */
2757 demand_empty_rest_of_line ();
2761 obj_coff_val (ignore)
2762 int ignore ATTRIBUTE_UNUSED;
2764 if (def_symbol_in_progress == NULL)
2766 as_warn (_(".val pseudo-op used outside of .def/.endef ignored."));
2767 demand_empty_rest_of_line ();
2769 } /* if not inside .def/.endef */
2771 if (is_name_beginner (*input_line_pointer))
2773 char *symbol_name = input_line_pointer;
2774 char name_end = get_symbol_end ();
2776 #ifdef tc_canonicalize_symbol_name
2777 symbol_name = tc_canonicalize_symbol_name (symbol_name);
2780 if (!strcmp (symbol_name, "."))
2782 def_symbol_in_progress->sy_frag = frag_now;
2783 S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
2784 /* If the .val is != from the .def (e.g. statics) */
2786 else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name))
2788 def_symbol_in_progress->sy_value.X_op = O_symbol;
2789 def_symbol_in_progress->sy_value.X_add_symbol =
2790 symbol_find_or_make (symbol_name);
2791 def_symbol_in_progress->sy_value.X_op_symbol = NULL;
2792 def_symbol_in_progress->sy_value.X_add_number = 0;
2794 /* If the segment is undefined when the forward reference is
2795 resolved, then copy the segment id from the forward
2797 SF_SET_GET_SEGMENT (def_symbol_in_progress);
2799 /* FIXME: gcc can generate address expressions here in
2800 unusual cases (search for "obscure" in sdbout.c). We
2801 just ignore the offset here, thus generating incorrect
2802 debugging information. We ignore the rest of the line
2805 /* Otherwise, it is the name of a non debug symbol and
2806 its value will be calculated later. */
2807 *input_line_pointer = name_end;
2809 /* FIXME: this is to avoid an error message in the
2810 FIXME case mentioned just above. */
2811 while (! is_end_of_line[(unsigned char) *input_line_pointer])
2812 ++input_line_pointer;
2816 S_SET_VALUE (def_symbol_in_progress,
2817 (valueT) get_absolute_expression ());
2818 } /* if symbol based */
2820 demand_empty_rest_of_line ();
2825 /* Handle the .linkonce pseudo-op. This is parsed by s_linkonce in
2826 read.c, which then calls this object file format specific routine. */
2829 obj_coff_pe_handle_link_once (type)
2830 enum linkonce_type type;
2832 seg_info (now_seg)->scnhdr.s_flags |= IMAGE_SCN_LNK_COMDAT;
2834 /* We store the type in the seg_info structure, and use it to set up
2835 the auxiliary entry for the section symbol in c_section_symbol. */
2836 seg_info (now_seg)->linkonce = type;
2842 coff_obj_read_begin_hook ()
2844 /* These had better be the same. Usually 18 bytes. */
2846 know (sizeof (SYMENT) == sizeof (AUXENT));
2847 know (SYMESZ == AUXESZ);
2852 /* This function runs through the symbol table and puts all the
2853 externals onto another chain */
2855 /* The chain of globals. */
2856 symbolS *symbol_globalP;
2857 symbolS *symbol_global_lastP;
2859 /* The chain of externals */
2860 symbolS *symbol_externP;
2861 symbolS *symbol_extern_lastP;
2864 symbolS *last_functionP;
2865 static symbolS *last_bfP;
2872 unsigned int symbol_number = 0;
2873 unsigned int last_file_symno = 0;
2875 struct filename_list *filename_list_scan = filename_list_head;
2877 for (symbolP = symbol_rootP;
2879 symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP)
2881 if (symbolP->sy_mri_common)
2883 if (S_GET_STORAGE_CLASS (symbolP) == C_EXT
2885 || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK
2887 || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT)
2888 as_bad (_("%s: global symbols not supported in common sections"),
2889 S_GET_NAME (symbolP));
2890 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
2894 if (!SF_GET_DEBUG (symbolP))
2896 /* Debug symbols do not need all this rubbish */
2897 symbolS *real_symbolP;
2899 /* L* and C_EFCN symbols never merge. */
2900 if (!SF_GET_LOCAL (symbolP)
2901 && !SF_GET_STATICS (symbolP)
2902 && S_GET_STORAGE_CLASS (symbolP) != C_LABEL
2903 && symbolP->sy_value.X_op == O_constant
2904 && (real_symbolP = symbol_find_base (S_GET_NAME (symbolP), DO_NOT_STRIP))
2905 && real_symbolP != symbolP)
2907 /* FIXME-SOON: where do dups come from?
2908 Maybe tag references before definitions? xoxorich. */
2909 /* Move the debug data from the debug symbol to the
2910 real symbol. Do NOT do the oposite (i.e. move from
2911 real symbol to debug symbol and remove real symbol from the
2912 list.) Because some pointers refer to the real symbol
2913 whereas no pointers refer to the debug symbol. */
2914 c_symbol_merge (symbolP, real_symbolP);
2915 /* Replace the current symbol by the real one */
2916 /* The symbols will never be the last or the first
2917 because : 1st symbol is .file and 3 last symbols are
2918 .text, .data, .bss */
2919 symbol_remove (real_symbolP, &symbol_rootP, &symbol_lastP);
2920 symbol_insert (real_symbolP, symbolP, &symbol_rootP, &symbol_lastP);
2921 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
2922 symbolP = real_symbolP;
2923 } /* if not local but dup'd */
2925 if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_E1))
2927 S_SET_SEGMENT (symbolP, SEG_E0);
2928 } /* push data into text */
2930 resolve_symbol_value (symbolP, 1);
2932 if (S_GET_STORAGE_CLASS (symbolP) == C_NULL)
2934 if (!S_IS_DEFINED (symbolP) && !SF_GET_LOCAL (symbolP))
2936 S_SET_EXTERNAL (symbolP);
2938 else if (S_GET_SEGMENT (symbolP) == SEG_E0)
2940 S_SET_STORAGE_CLASS (symbolP, C_LABEL);
2944 S_SET_STORAGE_CLASS (symbolP, C_STAT);
2948 /* Mainly to speed up if not -g */
2949 if (SF_GET_PROCESS (symbolP))
2951 /* Handle the nested blocks auxiliary info. */
2952 if (S_GET_STORAGE_CLASS (symbolP) == C_BLOCK)
2954 if (!strcmp (S_GET_NAME (symbolP), ".bb"))
2955 stack_push (block_stack, (char *) &symbolP);
2958 register symbolS *begin_symbolP;
2959 begin_symbolP = *(symbolS **) stack_pop (block_stack);
2960 if (begin_symbolP == (symbolS *) 0)
2961 as_warn (_("mismatched .eb"));
2963 SA_SET_SYM_ENDNDX (begin_symbolP, symbol_number + 2);
2966 /* If we are able to identify the type of a function, and we
2967 are out of a function (last_functionP == 0) then, the
2968 function symbol will be associated with an auxiliary
2970 if (last_functionP == (symbolS *) 0 &&
2971 SF_GET_FUNCTION (symbolP))
2973 last_functionP = symbolP;
2975 if (S_GET_NUMBER_AUXILIARY (symbolP) < 1)
2977 S_SET_NUMBER_AUXILIARY (symbolP, 1);
2978 } /* make it at least 1 */
2980 /* Clobber possible stale .dim information. */
2982 /* Iffed out by steve - this fries the lnnoptr info too */
2983 bzero (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen,
2984 sizeof (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen));
2987 if (S_GET_STORAGE_CLASS (symbolP) == C_FCN)
2989 if (strcmp (S_GET_NAME (symbolP), ".bf") == 0)
2991 if (last_bfP != NULL)
2992 SA_SET_SYM_ENDNDX (last_bfP, symbol_number);
2996 else if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN)
2998 /* I don't even know if this is needed for sdb. But
2999 the standard assembler generates it, so... */
3000 if (last_functionP == (symbolS *) 0)
3001 as_fatal (_("C_EFCN symbol out of scope"));
3002 SA_SET_SYM_FSIZE (last_functionP,
3003 (long) (S_GET_VALUE (symbolP) -
3004 S_GET_VALUE (last_functionP)));
3005 SA_SET_SYM_ENDNDX (last_functionP, symbol_number);
3006 last_functionP = (symbolS *) 0;
3010 else if (SF_GET_TAG (symbolP))
3012 /* First descriptor of a structure must point to
3013 the first slot after the structure description. */
3014 last_tagP = symbolP;
3017 else if (S_GET_STORAGE_CLASS (symbolP) == C_EOS)
3019 /* +2 take in account the current symbol */
3020 SA_SET_SYM_ENDNDX (last_tagP, symbol_number + 2);
3022 else if (S_GET_STORAGE_CLASS (symbolP) == C_FILE)
3024 /* If the filename was too long to fit in the
3025 auxent, put it in the string table */
3026 if (SA_GET_FILE_FNAME_ZEROS (symbolP) == 0
3027 && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0)
3029 SA_SET_FILE_FNAME_OFFSET (symbolP, string_byte_count);
3030 string_byte_count += strlen (filename_list_scan->filename) + 1;
3031 filename_list_scan = filename_list_scan->next;
3033 if (S_GET_VALUE (symbolP))
3035 S_SET_VALUE (symbolP, last_file_symno);
3036 last_file_symno = symbol_number;
3037 } /* no one points at the first .file symbol */
3038 } /* if debug or tag or eos or file */
3040 #ifdef tc_frob_coff_symbol
3041 tc_frob_coff_symbol (symbolP);
3044 /* We must put the external symbols apart. The loader
3045 does not bomb if we do not. But the references in
3046 the endndx field for a .bb symbol are not corrected
3047 if an external symbol is removed between .bb and .be.
3048 I.e in the following case :
3049 [20] .bb endndx = 22
3052 ld will move the symbol 21 to the end of the list but
3053 endndx will still be 22 instead of 21. */
3056 if (SF_GET_LOCAL (symbolP))
3058 /* remove C_EFCN and LOCAL (L...) symbols */
3059 /* next pointer remains valid */
3060 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3063 else if (symbolP->sy_value.X_op == O_symbol
3064 && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)))
3066 /* Skip symbols which were equated to undefined or common
3068 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3070 else if (!S_IS_DEFINED (symbolP)
3071 && !S_IS_DEBUG (symbolP)
3072 && !SF_GET_STATICS (symbolP)
3073 && (S_GET_STORAGE_CLASS (symbolP) == C_EXT
3075 || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK
3077 || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT))
3079 /* if external, Remove from the list */
3080 symbolS *hold = symbol_previous (symbolP);
3082 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3083 symbol_clear_list_pointers (symbolP);
3084 symbol_append (symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP);
3087 else if (! S_IS_DEBUG (symbolP)
3088 && ! SF_GET_STATICS (symbolP)
3089 && ! SF_GET_FUNCTION (symbolP)
3090 && (S_GET_STORAGE_CLASS (symbolP) == C_EXT
3092 || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK
3094 || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK))
3096 symbolS *hold = symbol_previous (symbolP);
3098 /* The O'Reilly COFF book says that defined global symbols
3099 come at the end of the symbol table, just before
3100 undefined global symbols. */
3102 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3103 symbol_clear_list_pointers (symbolP);
3104 symbol_append (symbolP, symbol_global_lastP, &symbol_globalP,
3105 &symbol_global_lastP);
3110 if (SF_GET_STRING (symbolP))
3112 symbolP->sy_name_offset = string_byte_count;
3113 string_byte_count += strlen (S_GET_NAME (symbolP)) + 1;
3117 symbolP->sy_name_offset = 0;
3118 } /* fix "long" names */
3120 symbolP->sy_number = symbol_number;
3121 symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP);
3122 } /* if local symbol */
3123 } /* traverse the symbol list */
3124 return symbol_number;
3130 glue_symbols (head, tail)
3134 unsigned int symbol_number = 0;
3136 while (*head != NULL)
3138 symbolS *tmp = *head;
3141 symbol_remove (tmp, head, tail);
3142 symbol_append (tmp, symbol_lastP, &symbol_rootP, &symbol_lastP);
3145 if (SF_GET_STRING (tmp))
3147 tmp->sy_name_offset = string_byte_count;
3148 string_byte_count += strlen (S_GET_NAME (tmp)) + 1;
3152 tmp->sy_name_offset = 0;
3153 } /* fix "long" names */
3155 tmp->sy_number = symbol_number;
3156 symbol_number += 1 + S_GET_NUMBER_AUXILIARY (tmp);
3157 } /* append the entire extern chain */
3159 return symbol_number;
3165 unsigned int symbol_number = 0;
3168 for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
3170 symbolP->sy_number = symbol_number;
3172 if (SF_GET_TAGGED (symbolP))
3176 ((symbolS *) SA_GET_SYM_TAGNDX (symbolP))->sy_number);
3179 symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP);
3182 return symbol_number;
3186 crawl_symbols (h, abfd)
3188 bfd *abfd ATTRIBUTE_UNUSED;
3192 /* Initialize the stack used to keep track of the matching .bb .be */
3194 block_stack = stack_init (512, sizeof (symbolS *));
3196 /* The symbol list should be ordered according to the following sequence
3199 * . debug entries for functions
3200 * . fake symbols for the sections, including .text .data and .bss
3202 * . undefined symbols
3203 * But this is not mandatory. The only important point is to put the
3204 * undefined symbols at the end of the list.
3207 /* Is there a .file symbol ? If not insert one at the beginning. */
3208 if (symbol_rootP == NULL
3209 || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
3211 c_dot_file_symbol ("fake");
3215 * Build up static symbols for the sections, they are filled in later
3219 for (i = SEG_E0; i < SEG_LAST; i++)
3220 if (segment_info[i].scnhdr.s_name[0])
3221 segment_info[i].dot = c_section_symbol (segment_info[i].name,
3224 /* Take all the externals out and put them into another chain */
3225 H_SET_SYMBOL_TABLE_SIZE (h, yank_symbols ());
3226 /* Take the externals and glue them onto the end.*/
3227 H_SET_SYMBOL_TABLE_SIZE (h,
3228 (H_GET_SYMBOL_COUNT (h)
3229 + glue_symbols (&symbol_globalP,
3230 &symbol_global_lastP)
3231 + glue_symbols (&symbol_externP,
3232 &symbol_extern_lastP)));
3234 H_SET_SYMBOL_TABLE_SIZE (h, tie_tags ());
3235 know (symbol_globalP == NULL);
3236 know (symbol_global_lastP == NULL);
3237 know (symbol_externP == NULL);
3238 know (symbol_extern_lastP == NULL);
3242 * Find strings by crawling along symbol table chain.
3250 struct filename_list *filename_list_scan = filename_list_head;
3252 /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */
3253 md_number_to_chars (where, (valueT) string_byte_count, 4);
3256 #ifdef COFF_LONG_SECTION_NAMES
3257 /* Support long section names as found in PE. This code must
3258 coordinate with that in coff_header_append and write_object_file. */
3262 for (i = SEG_E0; i < SEG_LAST; i++)
3264 if (segment_info[i].scnhdr.s_name[0]
3265 && strlen (segment_info[i].name) > SCNNMLEN)
3269 size = strlen (segment_info[i].name) + 1;
3270 memcpy (where, segment_info[i].name, size);
3275 #endif /* COFF_LONG_SECTION_NAMES */
3277 for (symbolP = symbol_rootP;
3279 symbolP = symbol_next (symbolP))
3283 if (SF_GET_STRING (symbolP))
3285 size = strlen (S_GET_NAME (symbolP)) + 1;
3286 memcpy (where, S_GET_NAME (symbolP), size);
3289 if (S_GET_STORAGE_CLASS (symbolP) == C_FILE
3290 && SA_GET_FILE_FNAME_ZEROS (symbolP) == 0
3291 && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0)
3293 size = strlen (filename_list_scan->filename) + 1;
3294 memcpy (where, filename_list_scan->filename, size);
3295 filename_list_scan = filename_list_scan ->next;
3302 do_linenos_for (abfd, h, file_cursor)
3305 unsigned long *file_cursor;
3308 unsigned long start = *file_cursor;
3310 for (idx = SEG_E0; idx < SEG_LAST; idx++)
3312 segment_info_type *s = segment_info + idx;
3315 if (s->scnhdr.s_nlnno != 0)
3317 struct lineno_list *line_ptr;
3319 struct external_lineno *buffer =
3320 (struct external_lineno *) xmalloc (s->scnhdr.s_nlnno * LINESZ);
3322 struct external_lineno *dst = buffer;
3324 /* Run through the table we've built and turn it into its external
3325 form, take this chance to remove duplicates */
3327 for (line_ptr = s->lineno_list_head;
3328 line_ptr != (struct lineno_list *) NULL;
3329 line_ptr = line_ptr->next)
3332 if (line_ptr->line.l_lnno == 0)
3334 /* Turn a pointer to a symbol into the symbols' index */
3335 line_ptr->line.l_addr.l_symndx =
3336 ((symbolS *) line_ptr->line.l_addr.l_symndx)->sy_number;
3340 line_ptr->line.l_addr.l_paddr += ((struct frag *) (line_ptr->frag))->fr_address;
3344 (void) bfd_coff_swap_lineno_out (abfd, &(line_ptr->line), dst);
3349 s->scnhdr.s_lnnoptr = *file_cursor;
3351 bfd_write (buffer, 1, s->scnhdr.s_nlnno * LINESZ, abfd);
3354 *file_cursor += s->scnhdr.s_nlnno * LINESZ;
3357 H_SET_LINENO_SIZE (h, *file_cursor - start);
3361 /* Now we run through the list of frag chains in a segment and
3362 make all the subsegment frags appear at the end of the
3363 list, as if the seg 0 was extra long */
3370 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3372 frchainS *head = segment_info[i].frchainP;
3374 fragS *prev_frag = &dummy;
3376 while (head && head->frch_seg == i)
3378 prev_frag->fr_next = head->frch_root;
3379 prev_frag = head->frch_last;
3380 head = head->frch_next;
3382 prev_frag->fr_next = 0;
3386 unsigned long machine;
3389 write_object_file ()
3393 struct frchain *frchain_ptr;
3395 object_headers headers;
3396 unsigned long file_cursor;
3399 abfd = bfd_openw (out_file_name, TARGET_FORMAT);
3404 as_perror (_("FATAL: Can't create %s"), out_file_name);
3405 exit (EXIT_FAILURE);
3407 bfd_set_format (abfd, bfd_object);
3408 bfd_set_arch_mach (abfd, BFD_ARCH, machine);
3410 string_byte_count = 4;
3412 for (frchain_ptr = frchain_root;
3413 frchain_ptr != (struct frchain *) NULL;
3414 frchain_ptr = frchain_ptr->frch_next)
3416 /* Run through all the sub-segments and align them up. Also
3417 close any open frags. We tack a .fill onto the end of the
3418 frag chain so that any .align's size can be worked by looking
3419 at the next frag. */
3421 subseg_set (frchain_ptr->frch_seg, frchain_ptr->frch_subseg);
3423 #ifndef SUB_SEGMENT_ALIGN
3424 #define SUB_SEGMENT_ALIGN(SEG) 1
3427 md_do_align (SUB_SEGMENT_ALIGN (now_seg), (char *) NULL, 0, 0,
3430 frag_align (SUB_SEGMENT_ALIGN (now_seg),
3431 subseg_text_p (now_seg) ? NOP_OPCODE : 0,
3436 frag_wane (frag_now);
3437 frag_now->fr_fix = 0;
3438 know (frag_now->fr_next == NULL);
3445 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3447 relax_segment (segment_info[i].frchainP->frch_root, i);
3450 H_SET_NUMBER_OF_SECTIONS (&headers, 0);
3452 /* Find out how big the sections are, and set the addresses. */
3454 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3458 segment_info[i].scnhdr.s_paddr = addr;
3459 segment_info[i].scnhdr.s_vaddr = addr;
3461 if (segment_info[i].scnhdr.s_name[0])
3463 H_SET_NUMBER_OF_SECTIONS (&headers,
3464 H_GET_NUMBER_OF_SECTIONS (&headers) + 1);
3466 #ifdef COFF_LONG_SECTION_NAMES
3467 /* Support long section names as found in PE. This code
3468 must coordinate with that in coff_header_append and
3473 len = strlen (segment_info[i].name);
3475 string_byte_count += len + 1;
3477 #endif /* COFF_LONG_SECTION_NAMES */
3480 size = size_section (abfd, (unsigned int) i);
3483 /* I think the section alignment is only used on the i960; the
3484 i960 needs it, and it should do no harm on other targets. */
3485 #ifdef ALIGNMENT_IN_S_FLAGS
3486 segment_info[i].scnhdr.s_flags |= (section_alignment[i] & 0xF) << 8;
3488 segment_info[i].scnhdr.s_align = 1 << section_alignment[i];
3492 H_SET_TEXT_SIZE (&headers, size);
3493 else if (i == SEG_E1)
3494 H_SET_DATA_SIZE (&headers, size);
3495 else if (i == SEG_E2)
3496 H_SET_BSS_SIZE (&headers, size);
3499 /* Turn the gas native symbol table shape into a coff symbol table */
3500 crawl_symbols (&headers, abfd);
3502 if (string_byte_count == 4)
3503 string_byte_count = 0;
3505 H_SET_STRING_SIZE (&headers, string_byte_count);
3511 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3513 fixup_mdeps (segment_info[i].frchainP->frch_root, &headers, i);
3514 fixup_segment (&segment_info[i], i);
3517 /* Look for ".stab" segments and fill in their initial symbols
3519 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
3521 name = segment_info[i].name;
3524 && strncmp (".stab", name, 5) == 0
3525 && strncmp (".stabstr", name, 8) != 0)
3526 adjust_stab_section (abfd, i);
3529 file_cursor = H_GET_TEXT_FILE_OFFSET (&headers);
3531 bfd_seek (abfd, (file_ptr) file_cursor, 0);
3533 /* Plant the data */
3535 fill_section (abfd, &headers, &file_cursor);
3537 do_relocs_for (abfd, &headers, &file_cursor);
3539 do_linenos_for (abfd, &headers, &file_cursor);
3541 H_SET_FILE_MAGIC_NUMBER (&headers, COFF_MAGIC);
3542 #ifndef OBJ_COFF_OMIT_TIMESTAMP
3543 H_SET_TIME_STAMP (&headers, (long)time((time_t *)0));
3545 H_SET_TIME_STAMP (&headers, 0);
3547 #ifdef TC_COFF_SET_MACHINE
3548 TC_COFF_SET_MACHINE (&headers);
3552 #define COFF_FLAGS 0
3555 #ifdef KEEP_RELOC_INFO
3556 H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) |
3557 COFF_FLAGS | coff_flags));
3559 H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) |
3560 (H_GET_RELOCATION_SIZE(&headers) ? 0 : F_RELFLG) |
3561 COFF_FLAGS | coff_flags));
3565 unsigned int symtable_size = H_GET_SYMBOL_TABLE_SIZE (&headers);
3566 char *buffer1 = xmalloc (symtable_size + string_byte_count + 1);
3568 H_SET_SYMBOL_TABLE_POINTER (&headers, bfd_tell (abfd));
3569 w_symbols (abfd, buffer1, symbol_rootP);
3570 if (string_byte_count > 0)
3571 w_strings (buffer1 + symtable_size);
3572 bfd_write (buffer1, 1, symtable_size + string_byte_count, abfd);
3576 coff_header_append (abfd, &headers);
3578 /* Recent changes to write need this, but where it should
3579 go is up to Ken.. */
3580 if (bfd_close_all_done (abfd) == false)
3581 as_fatal (_("Can't close %s: %s"), out_file_name,
3582 bfd_errmsg (bfd_get_error ()));
3585 extern bfd *stdoutput;
3592 /* Add a new segment. This is called from subseg_new via the
3593 obj_new_segment macro. */
3596 obj_coff_add_segment (name)
3601 #ifndef COFF_LONG_SECTION_NAMES
3602 char buf[SCNNMLEN + 1];
3604 strncpy (buf, name, SCNNMLEN);
3605 buf[SCNNMLEN] = '\0';
3609 for (i = SEG_E0; i < SEG_LAST && segment_info[i].scnhdr.s_name[0]; i++)
3610 if (strcmp (name, segment_info[i].name) == 0)
3615 as_bad (_("Too many new sections; can't add \"%s\""), name);
3619 /* Add a new section. */
3620 strncpy (segment_info[i].scnhdr.s_name, name,
3621 sizeof (segment_info[i].scnhdr.s_name));
3622 segment_info[i].scnhdr.s_flags = STYP_REG;
3623 segment_info[i].name = xstrdup (name);
3629 * implement the .section pseudo op:
3630 * .section name {, "flags"}
3632 * | +--- optional flags: 'b' for bss
3634 * +-- section name 'l' for lib
3638 * 'd' (apparently m88k for data)
3640 * 'r' for read-only data
3641 * But if the argument is not a quoted string, treat it as a
3642 * subsegment number.
3646 obj_coff_section (ignore)
3647 int ignore ATTRIBUTE_UNUSED;
3649 /* Strip out the section name */
3650 char *section_name, *name;
3663 else if (type == 'D')
3665 segment_info[now_seg].scnhdr.s_flags |= flags;
3670 section_name = input_line_pointer;
3671 c = get_symbol_end ();
3673 name = xmalloc (input_line_pointer - section_name + 1);
3674 strcpy (name, section_name);
3676 *input_line_pointer = c;
3682 if (*input_line_pointer == ',')
3684 ++input_line_pointer;
3687 if (*input_line_pointer != '"')
3688 exp = get_absolute_expression ();
3691 ++input_line_pointer;
3692 while (*input_line_pointer != '"'
3693 && ! is_end_of_line[(unsigned char) *input_line_pointer])
3695 switch (*input_line_pointer)
3697 case 'b': flags |= STYP_BSS; break;
3698 case 'i': flags |= STYP_INFO; break;
3699 case 'l': flags |= STYP_LIB; break;
3700 case 'n': flags |= STYP_NOLOAD; break;
3701 case 'o': flags |= STYP_OVER; break;
3703 case 'w': flags |= STYP_DATA; break;
3704 case 'x': flags |= STYP_TEXT; break;
3705 case 'r': flags |= STYP_LIT; break;
3707 as_warn(_("unknown section attribute '%c'"),
3708 *input_line_pointer);
3711 ++input_line_pointer;
3713 if (*input_line_pointer == '"')
3714 ++input_line_pointer;
3718 subseg_new (name, (subsegT) exp);
3720 segment_info[now_seg].scnhdr.s_flags |= flags;
3722 demand_empty_rest_of_line ();
3727 obj_coff_text (ignore)
3728 int ignore ATTRIBUTE_UNUSED;
3730 subseg_new (".text", get_absolute_expression ());
3735 obj_coff_data (ignore)
3736 int ignore ATTRIBUTE_UNUSED;
3738 if (flag_readonly_data_in_text)
3739 subseg_new (".text", get_absolute_expression () + 1000);
3741 subseg_new (".data", get_absolute_expression ());
3745 obj_coff_ident (ignore)
3746 int ignore ATTRIBUTE_UNUSED;
3748 segT current_seg = now_seg; /* save current seg */
3749 subsegT current_subseg = now_subseg;
3750 subseg_new (".comment", 0); /* .comment seg */
3751 stringer (1); /* read string */
3752 subseg_set (current_seg, current_subseg); /* restore current seg */
3756 c_symbol_merge (debug, normal)
3760 S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug));
3761 S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug));
3763 if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal))
3765 S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug));
3766 } /* take the most we have */
3768 if (S_GET_NUMBER_AUXILIARY (debug) > 0)
3770 memcpy ((char *) &normal->sy_symbol.ost_auxent[0],
3771 (char *) &debug->sy_symbol.ost_auxent[0],
3772 (unsigned int) (S_GET_NUMBER_AUXILIARY (debug) * AUXESZ));
3773 } /* Move all the auxiliary information */
3775 /* Move the debug flags. */
3776 SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug));
3777 } /* c_symbol_merge() */
3780 c_line_new (symbol, paddr, line_number, frag)
3786 struct lineno_list *new_line =
3787 (struct lineno_list *) xmalloc (sizeof (struct lineno_list));
3789 segment_info_type *s = segment_info + now_seg;
3790 new_line->line.l_lnno = line_number;
3792 if (line_number == 0)
3794 last_line_symbol = symbol;
3795 new_line->line.l_addr.l_symndx = (long) symbol;
3799 new_line->line.l_addr.l_paddr = paddr;
3802 new_line->frag = (char *) frag;
3803 new_line->next = (struct lineno_list *) NULL;
3806 if (s->lineno_list_head == (struct lineno_list *) NULL)
3808 s->lineno_list_head = new_line;
3812 s->lineno_list_tail->next = new_line;
3814 s->lineno_list_tail = new_line;
3815 return LINESZ * s->scnhdr.s_nlnno++;
3819 c_dot_file_symbol (filename)
3824 symbolP = symbol_new (".file",
3827 &zero_address_frag);
3829 S_SET_STORAGE_CLASS (symbolP, C_FILE);
3830 S_SET_NUMBER_AUXILIARY (symbolP, 1);
3832 if (strlen (filename) > FILNMLEN)
3834 /* Filename is too long to fit into an auxent,
3835 we stick it into the string table instead. We keep
3836 a linked list of the filenames we find so we can emit
3838 struct filename_list *f = ((struct filename_list *)
3839 xmalloc (sizeof (struct filename_list)));
3841 f->filename = filename;
3844 SA_SET_FILE_FNAME_ZEROS (symbolP, 0);
3845 SA_SET_FILE_FNAME_OFFSET (symbolP, 1);
3847 if (filename_list_tail)
3848 filename_list_tail->next = f;
3850 filename_list_head = f;
3851 filename_list_tail = f;
3855 SA_SET_FILE_FNAME (symbolP, filename);
3862 listing_source_file (filename);
3868 SF_SET_DEBUG (symbolP);
3869 S_SET_VALUE (symbolP, (valueT) previous_file_symbol);
3871 previous_file_symbol = symbolP;
3873 /* Make sure that the symbol is first on the symbol chain */
3874 if (symbol_rootP != symbolP)
3876 symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
3877 symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP);
3879 } /* c_dot_file_symbol() */
3882 * Build a 'section static' symbol.
3886 c_section_symbol (name, idx)
3892 symbolP = symbol_find_base (name, DO_NOT_STRIP);
3893 if (symbolP == NULL)
3894 symbolP = symbol_new (name, idx, 0, &zero_address_frag);
3897 /* Mmmm. I just love violating interfaces. Makes me feel...dirty. */
3898 S_SET_SEGMENT (symbolP, idx);
3899 symbolP->sy_frag = &zero_address_frag;
3902 S_SET_STORAGE_CLASS (symbolP, C_STAT);
3903 S_SET_NUMBER_AUXILIARY (symbolP, 1);
3905 SF_SET_STATICS (symbolP);
3909 which is set by the new definition of LOCAL_LABEL in tc-m68k.h. */
3910 SF_CLEAR_LOCAL (symbolP);
3913 /* If the .linkonce pseudo-op was used for this section, we must
3914 store the information in the auxiliary entry for the section
3916 if (segment_info[idx].linkonce != LINKONCE_UNSET)
3920 switch (segment_info[idx].linkonce)
3924 case LINKONCE_DISCARD:
3925 type = IMAGE_COMDAT_SELECT_ANY;
3927 case LINKONCE_ONE_ONLY:
3928 type = IMAGE_COMDAT_SELECT_NODUPLICATES;
3930 case LINKONCE_SAME_SIZE:
3931 type = IMAGE_COMDAT_SELECT_SAME_SIZE;
3933 case LINKONCE_SAME_CONTENTS:
3934 type = IMAGE_COMDAT_SELECT_EXACT_MATCH;
3938 SYM_AUXENT (symbolP)->x_scn.x_comdat = type;
3943 } /* c_section_symbol() */
3946 w_symbols (abfd, where, symbol_rootP)
3949 symbolS * symbol_rootP;
3954 /* First fill in those values we have only just worked out */
3955 for (i = SEG_E0; i < SEG_LAST; i++)
3957 symbolP = segment_info[i].dot;
3960 SA_SET_SCN_SCNLEN (symbolP, segment_info[i].scnhdr.s_size);
3961 SA_SET_SCN_NRELOC (symbolP, segment_info[i].scnhdr.s_nreloc);
3962 SA_SET_SCN_NLINNO (symbolP, segment_info[i].scnhdr.s_nlnno);
3967 * Emit all symbols left in the symbol chain.
3969 for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
3971 /* Used to save the offset of the name. It is used to point
3972 to the string in memory but must be a file offset. */
3973 register char *temp;
3975 /* We can't fix the lnnoptr field in yank_symbols with the other
3976 adjustments, because we have to wait until we know where they
3978 if (SF_GET_ADJ_LNNOPTR (symbolP))
3980 SA_GET_SYM_LNNOPTR (symbolP) +=
3981 segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_lnnoptr;
3984 tc_coff_symbol_emit_hook (symbolP);
3986 temp = S_GET_NAME (symbolP);
3987 if (SF_GET_STRING (symbolP))
3989 S_SET_OFFSET (symbolP, symbolP->sy_name_offset);
3990 S_SET_ZEROES (symbolP, 0);
3994 memset (symbolP->sy_symbol.ost_entry.n_name, 0, SYMNMLEN);
3995 strncpy (symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN);
3997 where = symbol_to_chars (abfd, where, symbolP);
3998 S_SET_NAME (symbolP, temp);
4004 obj_coff_lcomm (ignore)
4005 int ignore ATTRIBUTE_UNUSED;
4017 name = input_line_pointer;
4019 c = get_symbol_end ();
4020 p = input_line_pointer;
4023 if (*input_line_pointer != ',')
4025 as_bad (_("Expected comma after name"));
4026 ignore_rest_of_line ();
4029 if (*input_line_pointer == '\n')
4031 as_bad (_("Missing size expression"));
4034 input_line_pointer++;
4035 if ((temp = get_absolute_expression ()) < 0)
4037 as_warn (_("lcomm length (%d.) <0! Ignored."), temp);
4038 ignore_rest_of_line ();
4043 symbolP = symbol_find_or_make(name);
4045 if (S_GET_SEGMENT(symbolP) == SEG_UNKNOWN &&
4046 S_GET_VALUE(symbolP) == 0)
4051 segT current_seg = now_seg; /* save current seg */
4052 subsegT current_subseg = now_subseg;
4054 subseg_set (SEG_E2, 1);
4055 symbolP->sy_frag = frag_now;
4056 p = frag_var(rs_org, 1, 1, (relax_substateT)0, symbolP,
4057 (offsetT) temp, (char *) 0);
4059 subseg_set (current_seg, current_subseg); /* restore current seg */
4060 S_SET_SEGMENT(symbolP, SEG_E2);
4061 S_SET_STORAGE_CLASS(symbolP, C_STAT);
4065 as_bad(_("Symbol %s already defined"), name);
4067 demand_empty_rest_of_line();
4072 fixup_mdeps (frags, h, this_segment)
4077 subseg_change (this_segment, 0);
4080 switch (frags->fr_type)
4086 HANDLE_ALIGN (frags);
4088 frags->fr_type = rs_fill;
4090 ((frags->fr_next->fr_address - frags->fr_address - frags->fr_fix)
4093 case rs_machine_dependent:
4094 md_convert_frag (h, this_segment, frags);
4100 frags = frags->fr_next;
4106 #ifndef TC_FORCE_RELOCATION
4107 #define TC_FORCE_RELOCATION(fix) 0
4111 fixup_segment (segP, this_segment_type)
4112 segment_info_type * segP;
4113 segT this_segment_type;
4115 register fixS * fixP;
4116 register symbolS *add_symbolP;
4117 register symbolS *sub_symbolP;
4120 register char *place;
4121 register long where;
4122 register char pcrel;
4123 register fragS *fragP;
4124 register segT add_symbol_segment = absolute_section;
4126 for (fixP = segP->fix_root; fixP; fixP = fixP->fx_next)
4128 fragP = fixP->fx_frag;
4130 where = fixP->fx_where;
4131 place = fragP->fr_literal + where;
4132 size = fixP->fx_size;
4133 add_symbolP = fixP->fx_addsy;
4134 sub_symbolP = fixP->fx_subsy;
4135 add_number = fixP->fx_offset;
4136 pcrel = fixP->fx_pcrel;
4138 /* We want function-relative stabs to work on systems which
4139 may use a relaxing linker; thus we must handle the sym1-sym2
4140 fixups function-relative stabs generates.
4142 Of course, if you actually enable relaxing in the linker, the
4143 line and block scoping information is going to be incorrect
4144 in some cases. The only way to really fix this is to support
4145 a reloc involving the difference of two symbols. */
4147 && (!sub_symbolP || pcrel))
4151 if (fixP->fx_tcbit && SF_GET_CALLNAME (add_symbolP))
4153 /* Relocation should be done via the associated 'bal' entry
4156 if (!SF_GET_BALNAME (tc_get_bal_of_call (add_symbolP)))
4158 as_bad_where (fixP->fx_file, fixP->fx_line,
4159 _("No 'bal' entry point for leafproc %s"),
4160 S_GET_NAME (add_symbolP));
4163 fixP->fx_addsy = add_symbolP = tc_get_bal_of_call (add_symbolP);
4167 /* Make sure the symbols have been resolved; this may not have
4168 happened if these are expression symbols. */
4169 if (add_symbolP != NULL && ! add_symbolP->sy_resolved)
4170 resolve_symbol_value (add_symbolP, 1);
4172 if (add_symbolP != NULL)
4174 /* If this fixup is against a symbol which has been equated
4175 to another symbol, convert it to the other symbol. */
4176 if (add_symbolP->sy_value.X_op == O_symbol
4177 && (! S_IS_DEFINED (add_symbolP)
4178 || S_IS_COMMON (add_symbolP)))
4180 while (add_symbolP->sy_value.X_op == O_symbol
4181 && (! S_IS_DEFINED (add_symbolP)
4182 || S_IS_COMMON (add_symbolP)))
4186 /* We must avoid looping, as that can occur with a
4187 badly written program. */
4188 n = add_symbolP->sy_value.X_add_symbol;
4189 if (n == add_symbolP)
4191 add_number += add_symbolP->sy_value.X_add_number;
4194 fixP->fx_addsy = add_symbolP;
4195 fixP->fx_offset = add_number;
4199 if (sub_symbolP != NULL && ! sub_symbolP->sy_resolved)
4200 resolve_symbol_value (sub_symbolP, 1);
4202 if (add_symbolP != NULL
4203 && add_symbolP->sy_mri_common)
4205 know (add_symbolP->sy_value.X_op == O_symbol);
4206 add_number += S_GET_VALUE (add_symbolP);
4207 fixP->fx_offset = add_number;
4208 add_symbolP = fixP->fx_addsy = add_symbolP->sy_value.X_add_symbol;
4213 add_symbol_segment = S_GET_SEGMENT (add_symbolP);
4214 } /* if there is an addend */
4218 if (add_symbolP == NULL || add_symbol_segment == absolute_section)
4220 if (add_symbolP != NULL)
4222 add_number += S_GET_VALUE (add_symbolP);
4224 fixP->fx_addsy = NULL;
4227 /* It's just -sym. */
4228 if (S_GET_SEGMENT (sub_symbolP) == absolute_section)
4230 add_number -= S_GET_VALUE (sub_symbolP);
4237 as_bad_where (fixP->fx_file, fixP->fx_line,
4238 _("Negative of non-absolute symbol %s"),
4239 S_GET_NAME (sub_symbolP));
4241 add_number -= S_GET_VALUE (sub_symbolP);
4242 } /* not absolute */
4244 /* if sub_symbol is in the same segment that add_symbol
4245 and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE */
4247 else if (S_GET_SEGMENT (sub_symbolP) == add_symbol_segment
4248 && SEG_NORMAL (add_symbol_segment))
4250 /* Difference of 2 symbols from same segment. Can't
4251 make difference of 2 undefineds: 'value' means
4252 something different for N_UNDF. */
4254 /* Makes no sense to use the difference of 2 arbitrary symbols
4255 as the target of a call instruction. */
4258 as_bad_where (fixP->fx_file, fixP->fx_line,
4259 _("callj to difference of 2 symbols"));
4261 #endif /* TC_I960 */
4262 add_number += S_GET_VALUE (add_symbolP) -
4263 S_GET_VALUE (sub_symbolP);
4266 if (!TC_FORCE_RELOCATION (fixP))
4268 fixP->fx_addsy = NULL;
4269 fixP->fx_subsy = NULL;
4271 #ifdef TC_M68K /* is this right? */
4279 /* Different segments in subtraction. */
4280 know (!(S_IS_EXTERNAL (sub_symbolP) && (S_GET_SEGMENT (sub_symbolP) == absolute_section)));
4282 if ((S_GET_SEGMENT (sub_symbolP) == absolute_section))
4284 add_number -= S_GET_VALUE (sub_symbolP);
4287 else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type
4288 #if 0 /* Okay for 68k, at least... */
4293 /* Make it pc-relative. */
4294 add_number += (md_pcrel_from (fixP)
4295 - S_GET_VALUE (sub_symbolP));
4304 as_bad_where (fixP->fx_file, fixP->fx_line,
4305 _("Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %ld."),
4306 segment_name (S_GET_SEGMENT (sub_symbolP)),
4307 S_GET_NAME (sub_symbolP),
4308 (long) (fragP->fr_address + where));
4311 } /* if sub_symbolP */
4315 if (add_symbol_segment == this_segment_type && pcrel)
4318 * This fixup was made when the symbol's segment was
4319 * SEG_UNKNOWN, but it is now in the local segment.
4320 * So we know how to do the address without relocation.
4323 /* reloc_callj() may replace a 'call' with a 'calls' or a 'bal',
4324 * in which cases it modifies *fixP as appropriate. In the case
4325 * of a 'calls', no further work is required, and *fixP has been
4326 * set up to make the rest of the code below a no-op.
4329 #endif /* TC_I960 */
4331 add_number += S_GET_VALUE (add_symbolP);
4332 add_number -= md_pcrel_from (fixP);
4335 add_number -= segP->scnhdr.s_vaddr;
4336 if defined (TC_I386) || defined (TE_LYNX). I now
4337 think that was an error propagated from the case when
4338 we are going to emit the relocation. If we are not
4339 going to emit the relocation, then we just want to
4340 set add_number to the difference between the symbols.
4341 This is a case that would only arise when there is a
4342 PC relative reference from a section other than .text
4343 to a symbol defined in the same section, and the
4344 reference is not relaxed. Since jump instructions on
4345 the i386 are relaxed, this could only arise with a
4346 call instruction. */
4348 pcrel = 0; /* Lie. Don't want further pcrel processing. */
4349 if (!TC_FORCE_RELOCATION (fixP))
4351 fixP->fx_addsy = NULL;
4357 switch (add_symbol_segment)
4359 case absolute_section:
4361 reloc_callj (fixP); /* See comment about reloc_callj() above*/
4362 #endif /* TC_I960 */
4363 add_number += S_GET_VALUE (add_symbolP);
4366 if (!TC_FORCE_RELOCATION (fixP))
4368 fixP->fx_addsy = NULL;
4375 #if defined(TC_A29K) || (defined(TE_PE) && defined(TC_I386)) || defined(TC_M88K)
4376 /* This really should be handled in the linker, but
4377 backward compatibility forbids. */
4378 add_number += S_GET_VALUE (add_symbolP);
4380 add_number += S_GET_VALUE (add_symbolP) +
4381 segment_info[S_GET_SEGMENT (add_symbolP)].scnhdr.s_paddr;
4387 if ((int) fixP->fx_bit_fixP == 13)
4389 /* This is a COBR instruction. They have only a
4390 * 13-bit displacement and are only to be used
4391 * for local branches: flag as error, don't generate
4394 as_bad_where (fixP->fx_file, fixP->fx_line,
4395 _("can't use COBR format with external label"));
4396 fixP->fx_addsy = NULL;
4400 #endif /* TC_I960 */
4401 #if ((defined (TC_I386) || defined (TE_LYNX) || defined (TE_AUX)) && !defined(TE_PE)) || defined (COFF_COMMON_ADDEND)
4402 /* 386 COFF uses a peculiar format in which the
4403 value of a common symbol is stored in the .text
4404 segment (I've checked this on SVR3.2 and SCO
4406 /* This is also true for 68k COFF on sysv machines
4407 (Checked on Motorola sysv68 R3V6 and R3V7.1, and also on
4408 UNIX System V/M68000, Release 1.0 from ATT/Bell Labs)
4410 if (S_IS_COMMON (add_symbolP))
4411 add_number += S_GET_VALUE (add_symbolP);
4416 } /* switch on symbol seg */
4417 } /* if not in local seg */
4418 } /* if there was a + symbol */
4422 #if !defined(TC_M88K) && !(defined(TE_PE) && defined(TC_I386)) && !defined(TC_A29K)
4423 /* This adjustment is not correct on the m88k, for which the
4424 linker does all the computation. */
4425 add_number -= md_pcrel_from (fixP);
4427 if (add_symbolP == 0)
4429 fixP->fx_addsy = &abs_symbol;
4430 } /* if there's an add_symbol */
4431 #if defined (TC_I386) || defined (TE_LYNX) || defined (TC_I960) || defined (TC_M68K)
4432 /* On the 386 we must adjust by the segment vaddr as well.
4435 I changed the i960 to work this way as well. This is
4436 compatible with the current GNU linker behaviour. I do
4437 not know what other i960 COFF assemblers do. This is not
4438 a common case: normally, only assembler code will contain
4439 a PC relative reloc, and only branches which do not
4440 originate in the .text section will have a non-zero
4443 I changed the m68k to work this way as well. This will
4444 break existing PC relative relocs from sections which do
4445 not start at address 0, but it will make ld -r work.
4446 Ian Taylor, 4 Oct 96. */
4448 add_number -= segP->scnhdr.s_vaddr;
4452 #ifdef MD_APPLY_FIX3
4453 md_apply_fix3 (fixP, (valueT *) &add_number, this_segment_type);
4455 md_apply_fix (fixP, add_number);
4458 if (!fixP->fx_bit_fixP && ! fixP->fx_no_overflow)
4461 /* The m88k uses the offset field of the reloc to get around
4464 && ((add_number & ~0xFF)
4465 || (fixP->fx_signed && (add_number & 0x80)))
4466 && ((add_number & ~0xFF) != (-1 & ~0xFF)
4467 || (add_number & 0x80) == 0))
4469 && ((add_number & ~0xFFFF)
4470 || (fixP->fx_signed && (add_number & 0x8000)))
4471 && ((add_number & ~0xFFFF) != (-1 & ~0xFFFF)
4472 || (add_number & 0x8000) == 0)))
4474 as_bad_where (fixP->fx_file, fixP->fx_line,
4475 _("Value of %ld too large for field of %d bytes at 0x%lx"),
4476 (long) add_number, size,
4477 (unsigned long) (fragP->fr_address + where));
4480 #ifdef WARN_SIGNED_OVERFLOW_WORD
4481 /* Warn if a .word value is too large when treated as a
4482 signed number. We already know it is not too negative.
4483 This is to catch over-large switches generated by gcc on
4485 if (!flag_signed_overflow_ok
4487 && add_number > 0x7fff)
4488 as_bad_where (fixP->fx_file, fixP->fx_line,
4489 _("Signed .word overflow; switch may be too large; %ld at 0x%lx"),
4491 (unsigned long) (fragP->fr_address + where));
4493 } /* not a bit fix */
4494 } /* For each fixS in this segment. */
4495 } /* fixup_segment() */
4499 /* The first entry in a .stab section is special. */
4502 obj_coff_init_stab_section (seg)
4508 unsigned int stroff;
4510 /* Make space for this first symbol. */
4514 as_where (&file, (unsigned int *) NULL);
4515 stabstr_name = (char *) alloca (strlen (segment_info[seg].name) + 4);
4516 strcpy (stabstr_name, segment_info[seg].name);
4517 strcat (stabstr_name, "str");
4518 stroff = get_stab_string_offset (file, stabstr_name);
4520 md_number_to_chars (p, stroff, 4);
4523 /* Fill in the counts in the first entry in a .stab section. */
4526 adjust_stab_section(abfd, seg)
4530 segT stabstrseg = SEG_UNKNOWN;
4531 const char *secname, *name2;
4534 int i, strsz = 0, nsyms;
4535 fragS *frag = segment_info[seg].frchainP->frch_root;
4537 /* Look for the associated string table section. */
4539 secname = segment_info[seg].name;
4540 name = (char *) alloca (strlen (secname) + 4);
4541 strcpy (name, secname);
4542 strcat (name, "str");
4544 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
4546 name2 = segment_info[i].name;
4547 if (name2 != NULL && strncmp(name2, name, 8) == 0)
4554 /* If we found the section, get its size. */
4555 if (stabstrseg != SEG_UNKNOWN)
4556 strsz = size_section (abfd, stabstrseg);
4558 nsyms = size_section (abfd, seg) / 12 - 1;
4560 /* Look for the first frag of sufficient size for the initial stab
4561 symbol, and collect a pointer to it. */
4562 while (frag && frag->fr_fix < 12)
4563 frag = frag->fr_next;
4565 p = frag->fr_literal;
4568 /* Write in the number of stab symbols and the size of the string
4570 bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6);
4571 bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8);
4574 #endif /* not BFD_ASSEMBLER */
4576 const pseudo_typeS coff_pseudo_table[] =
4578 {"def", obj_coff_def, 0},
4579 {"dim", obj_coff_dim, 0},
4580 {"endef", obj_coff_endef, 0},
4581 {"line", obj_coff_line, 0},
4582 {"ln", obj_coff_ln, 0},
4583 #ifdef BFD_ASSEMBLER
4584 {"loc", obj_coff_loc, 0},
4586 {"appline", obj_coff_ln, 1},
4587 {"scl", obj_coff_scl, 0},
4588 {"size", obj_coff_size, 0},
4589 {"tag", obj_coff_tag, 0},
4590 {"type", obj_coff_type, 0},
4591 {"val", obj_coff_val, 0},
4592 {"section", obj_coff_section, 0},
4593 {"sect", obj_coff_section, 0},
4594 /* FIXME: We ignore the MRI short attribute. */
4595 {"section.s", obj_coff_section, 0},
4596 {"sect.s", obj_coff_section, 0},
4597 /* We accept the .bss directive for backward compatibility with
4598 earlier versions of gas. */
4599 {"bss", obj_coff_bss, 0},
4600 {"weak", obj_coff_weak, 0},
4601 {"ident", obj_coff_ident, 0},
4602 #ifndef BFD_ASSEMBLER
4603 {"use", obj_coff_section, 0},
4604 {"text", obj_coff_text, 0},
4605 {"data", obj_coff_data, 0},
4606 {"lcomm", obj_coff_lcomm, 0},
4608 {"optim", s_ignore, 0}, /* For sun386i cc (?) */
4610 {"version", s_ignore, 0},
4611 {"ABORT", s_abort, 0},
4613 /* The m88k uses sdef instead of def. */
4614 {"sdef", obj_coff_def, 0},
4616 {NULL, NULL, 0} /* end sentinel */
4617 }; /* coff_pseudo_table */
4619 #ifdef BFD_ASSEMBLER
4621 /* Support for a COFF emulation. */
4623 static void coff_pop_insert PARAMS ((void));
4624 static int coff_separate_stab_sections PARAMS ((void));
4629 pop_insert (coff_pseudo_table);
4633 coff_separate_stab_sections ()
4638 const struct format_ops coff_format_ops =
4640 bfd_target_coff_flavour,
4641 0, /* dfl_leading_underscore */
4642 1, /* emit_section_symbols */
4647 coff_frob_file_after_relocs,
4650 0, /* s_get_align */
4651 0, /* s_set_align */
4652 0, /* s_get_other */
4653 0, /* s_set_other */
4658 0, /* copy_symbol_attributes */
4659 0, /* generate_asm_lineno */
4660 0, /* process_stab */
4661 coff_separate_stab_sections,
4662 obj_coff_init_stab_section,
4663 0, /* sec_sym_ok_for_reloc */
4665 0, /* ecoff_set_ext */
4666 coff_obj_read_begin_hook,
4667 coff_obj_symbol_new_hook