1 /* ELF object file format
2 Copyright (C) 1992, 1993 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as
8 published by the Free Software Foundation; either version 2,
9 or (at your option) any later version.
11 GAS is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
14 the GNU General Public License for more details.
16 You should have received a copy of the GNU General Public
17 License along with GAS; see the file COPYING. If not, write
18 to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
20 /* HP PA-RISC support was contributed by the Center for Software Science
21 at the University of Utah. */
24 #include "aout/stab_gnu.h"
27 static void obj_elf_stab PARAMS ((int what));
28 static void obj_elf_line PARAMS ((void));
29 static void obj_elf_desc PARAMS ((void));
30 static void obj_elf_version PARAMS ((void));
31 static void obj_elf_section PARAMS ((int));
32 static void obj_elf_size PARAMS ((void));
33 static void obj_elf_type PARAMS ((void));
34 static void obj_elf_ident PARAMS ((void));
36 const pseudo_typeS obj_pseudo_table[] = {
37 { "ident", obj_elf_ident, 0 },
38 { "section", obj_elf_section, 0 },
39 { "size", obj_elf_size, 0 },
40 { "type", obj_elf_type, 0 },
41 { "version", obj_elf_version, 0 },
43 /* These are used for stabs-in-elf configurations. */
44 { "desc", obj_elf_desc, 0 },
45 { "line", obj_elf_line, 0 },
46 { "stabd", obj_elf_stab, 'd' },
47 { "stabn", obj_elf_stab, 'n' },
48 { "stabs", obj_elf_stab, 's' },
49 /* This is used on Solaris 2.x on SPARC, but not supported yet. */
50 { "xstabs", s_ignore, 0 },
52 { NULL} /* end sentinel */
62 /* Initialize this with inclusive-or of all flags that can be cleared
63 by attributes, but not set by them. Also include flags that won't
64 get set properly in the assembler, but which the user/compiler
65 shouldn't be expected to set. */
66 flagword flags = SEC_READONLY | SEC_ALLOC | SEC_RELOC;
67 /* Initialize this with the default flags to be used if none are
69 flagword default_flags = SEC_ALLOC | SEC_RELOC;
71 string = demand_copy_C_string (&xxx);
73 if (*input_line_pointer != ',')
74 flags = default_flags;
75 while (*input_line_pointer == ',')
82 if (*input_line_pointer != '#')
84 as_bad ("unrecognized syntax in .section command");
85 ignore_rest_of_line ();
90 #define CHECK(X,BIT,NEG) \
91 if (!strncmp(X,input_line_pointer,len = sizeof(X) - 1)) { \
92 bit = BIT; inv = NEG; goto match; }
94 CHECK ("write", SEC_READONLY, 1);
95 CHECK ("alloc", SEC_ALLOC, 0);
98 p = input_line_pointer;
99 while (!is_end_of_line[*p] && *p != 0 && *p != ',')
103 as_bad ("unrecognized section attribute `%s' ignored",
113 input_line_pointer += len;
115 demand_empty_rest_of_line ();
117 sec = bfd_get_section_by_name (stdoutput, string);
120 sec = bfd_make_section_old_way (stdoutput, string);
121 bfd_set_section_flags (stdoutput, sec,
122 /* @@ What should the flags be?? */
124 sec->output_section = sec;
126 subseg_change (sec, 0);
130 /* pa-spaces.c -- Space/subspace support for the HP PA-RISC version of GAS */
132 /* for space, subspace, and symbol maintenance on HP 9000 Series 800 */
134 space_dict_chainS *space_dict_root;
135 space_dict_chainS *space_dict_last;
137 space_dict_chainS *current_space;
138 subspace_dict_chainS *current_subspace;
141 symbolS *start_symbol_root;
142 symbolS *start_symbol_last;
144 #if 0 /* I really don't think this belongs in this file. */
145 void pa_spaces_begin()
147 space_dict_chainS *space;
149 subsegT now_subseg = now_subseg;
151 space_dict_root = NULL;
152 space_dict_last = NULL;
154 start_symbol_root = NULL;
155 start_symbol_last = NULL;
157 /* create default space and subspace dictionaries */
160 while ( pa_def_spaces[i].name ) {
161 if ( pa_def_spaces[i].alias )
162 pa_def_spaces[i].segment = subseg_new(pa_def_spaces[i].alias,0);
164 pa_def_spaces[i].segment = bfd_make_section_old_way(stdoutput,pa_def_spaces[i].name);
166 create_new_space(pa_def_spaces[i].name,pa_def_spaces[i].spnum,
167 pa_def_spaces[i].loadable,pa_def_spaces[i].defined,
168 pa_def_spaces[i].private,pa_def_spaces[i].sort,0,
169 pa_def_spaces[i].segment);
174 while ( pa_def_subspaces[i].name ) {
175 space = pa_segment_to_space(pa_def_spaces[pa_def_subspaces[i].def_space_index].segment);
177 create_new_subspace(space,
178 pa_def_subspaces[i].name,pa_def_subspaces[i].defined,
179 pa_def_subspaces[i].loadable,
180 pa_def_subspaces[i].code_only,pa_def_subspaces[i].common,
181 pa_def_subspaces[i].dup_common,pa_def_subspaces[i].zero,
182 pa_def_subspaces[i].sort,pa_def_subspaces[i].access,
183 pa_def_subspaces[i].space_index,
184 pa_def_subspaces[i].alignment,
185 pa_def_subspaces[i].quadrant,
186 pa_def_spaces[pa_def_subspaces[i].def_space_index].segment);
187 subseg_new(pa_def_subspaces[i].name,pa_def_subspaces[i].subsegment);
190 as_fatal("Internal error: space missing for subspace \"%s\"\n",
191 pa_def_subspaces[i].name);
196 space_dict_chainS *create_new_space(name,spnum,loadable,defined,private,sort,defined_in_file,seg)
203 char defined_in_file;
207 Elf_Internal_Shdr *new_space;
208 space_dict_chainS *chain_entry;
210 new_space = (Elf_Internal_Shdr *)xmalloc(sizeof(Elf_Internal_Shdr));
212 as_fatal("Out of memory: could not allocate new Elf_Internal_Shdr: %s\n",name);
215 new_space->space_number = spnum;
216 new_space->is_loadable = loadable & 1;
217 new_space->is_defined = defined & 1;
218 new_space->is_private = private & 1;
219 new_space->sort_key = sort & 0xff;
221 new_space->loader_fix_index = ~0;
222 new_space->loader_fix_quantity = 0;
223 new_space->init_pointer_index = ~0;
224 new_space->init_pointer_quantity = 0;
225 new_space->subspace_quantity = 0;
228 chain_entry = (space_dict_chainS *)xmalloc(sizeof(space_dict_chainS));
230 as_fatal("Out of memory: could not allocate new space chain entry: %s\n",name);
232 SPACE_NAME(chain_entry) = (char *)xmalloc(strlen(name)+1);
233 strcpy(SPACE_NAME(chain_entry),name);
235 chain_entry->sd_entry = new_space;
236 chain_entry->sd_defined = defined_in_file;
237 chain_entry->sd_seg = seg;
238 chain_entry->sd_last_subseg = -1;
239 chain_entry->sd_next = NULL;
241 SPACE_SPNUM(chain_entry) = spnum;
242 SPACE_LOADABLE(chain_entry) = loadable & 1;
243 SPACE_DEFINED(chain_entry) = defined & 1;
244 SPACE_PRIVATE(chain_entry) = private & 1;
245 SPACE_SORT(chain_entry) = sort & 0xff;
247 /* find spot for the new space based on its sort key */
249 if ( !space_dict_last )
250 space_dict_last = chain_entry;
252 if ( space_dict_root == NULL ) /* if root is null, it is very easy */
253 space_dict_root = chain_entry;
256 space_dict_chainS *sdcP;
257 space_dict_chainS *last_sdcP;
259 sdcP = space_dict_root;
263 if ( SPACE_SORT(sdcP) < SPACE_SORT(chain_entry) ) {
265 sdcP = sdcP->sd_next;
267 else if ( SPACE_SORT(sdcP) == SPACE_SORT(chain_entry) ) {
269 sdcP = sdcP->sd_next;
271 else if ( SPACE_SORT(sdcP) > SPACE_SORT(chain_entry) ) {
277 chain_entry->sd_next = sdcP;
278 last_sdcP->sd_next = chain_entry;
281 space_dict_root = chain_entry;
282 chain_entry->sd_next = sdcP;
285 if ( chain_entry->sd_next == NULL )
286 space_dict_last = chain_entry;
293 *create_new_subspace(space,name,defined,loadable,code_only,common,dup_common,
294 is_zero,sort,access,space_index,alignment,quadrant,seg)
295 space_dict_chainS *space;
297 char defined,loadable,code_only,common,dup_common,is_zero;
305 Elf_Internal_Shdr * new_subspace;
306 subspace_dict_chainS * chain_entry;
307 symbolS * start_symbol;
309 new_subspace = (Elf_Internal_Shdr *)xmalloc(sizeof(Elf_Internal_Shdr));
311 as_fatal("Out of memory: could not allocate new Elf_Internal_Shdr: %s\n",
315 new_subspace->space_index = space_index;
316 new_subspace->fixup_request_index = ~0;
319 chain_entry = (subspace_dict_chainS *)xmalloc(sizeof(subspace_dict_chainS));
321 as_fatal("Out of memory: could not allocate new subspace chain entry: %s\n",name);
323 chain_entry->ssd_entry = new_subspace;
324 SUBSPACE_NAME(chain_entry) = (char *)xmalloc(strlen(name)+1);
325 strcpy(SUBSPACE_NAME(chain_entry),name);
327 SUBSPACE_ACCESS(chain_entry) = access & 0x7f;
328 SUBSPACE_LOADABLE(chain_entry) = loadable & 1;
329 SUBSPACE_COMMON(chain_entry) = common & 1;
330 SUBSPACE_DUP_COMM(chain_entry) = dup_common & 1;
331 SUBSPACE_SORT(chain_entry) = sort & 0xff;
332 SET_SUBSPACE_CODE_ONLY(chain_entry,code_only & 1);
333 SUBSPACE_ALIGN(chain_entry) = alignment & 0xffff;
334 SUBSPACE_QUADRANT(chain_entry) = quadrant & 0x3;
335 SUBSPACE_SUBSPACE_START(chain_entry) = pa_subspace_start(space,quadrant);
337 chain_entry->ssd_defined = defined;
338 chain_entry->ssd_space_number = space_index;
339 chain_entry->ssd_subseg = pa_next_subseg(space);
340 chain_entry->ssd_seg = seg;
341 SUBSPACE_ZERO(chain_entry) = is_zero;
342 chain_entry->ssd_last_align = 1;
343 chain_entry->ssd_next = NULL;
345 /* find spot for the new subspace based on its sort key */
347 if ( space->sd_subspaces == NULL ) /* if root is null, it is very easy */
348 space->sd_subspaces = chain_entry;
351 subspace_dict_chainS *ssdcP;
352 subspace_dict_chainS *last_ssdcP;
354 ssdcP = space->sd_subspaces;
358 if ( SUBSPACE_SORT(ssdcP) < SUBSPACE_SORT(chain_entry) ) {
360 ssdcP = ssdcP->ssd_next;
362 else if ( SUBSPACE_SORT(ssdcP) == SUBSPACE_SORT(chain_entry) ) {
364 ssdcP = ssdcP->ssd_next;
366 else if ( SUBSPACE_SORT(ssdcP) > SUBSPACE_SORT(chain_entry) ) {
372 chain_entry->ssd_next = ssdcP;
373 last_ssdcP->ssd_next = chain_entry;
376 space->sd_subspaces = chain_entry;
377 chain_entry->ssd_next = ssdcP;
381 start_symbol = pa_set_start_symbol(seg,space->sd_last_subseg);
382 chain_entry->ssd_start_sym = start_symbol;
388 *update_subspace(name,defined,loadable,code_only,common,dup_common,sort,zero,
389 access,space_index,alignment,quadrant,subseg)
391 char defined,loadable,code_only,common,dup_common,zero;
399 subspace_dict_chainS *chain_entry;
400 subspace_dict_chainS *is_defined_subspace();
402 if ( (chain_entry = is_defined_subspace(name,subseg)) ) {
404 SUBSPACE_ACCESS(chain_entry) = access & 0x7f;
405 SUBSPACE_LOADABLE(chain_entry) = loadable & 1;
406 SUBSPACE_COMMON(chain_entry) = common & 1;
407 SUBSPACE_DUP_COMM(chain_entry) = dup_common & 1;
408 SET_SUBSPACE_CODE_ONLY(chain_entry,code_only & 1);
409 SUBSPACE_SORT(chain_entry) = sort & 0xff;
410 /* chain_entry->ssd_entry->space_index = space_index; */
411 SUBSPACE_ALIGN(chain_entry) = alignment & 0xffff;
412 SUBSPACE_QUADRANT(chain_entry) = quadrant & 0x3;
414 chain_entry->ssd_defined = defined;
415 chain_entry->ssd_space_number = space_index;
416 SUBSPACE_ZERO(chain_entry) = zero;
425 space_dict_chainS *is_defined_space(name)
428 space_dict_chainS *spaceCh;
430 for (spaceCh = space_dict_root;spaceCh;spaceCh=spaceCh->sd_next ) {
431 if ( strcmp(SPACE_NAME(spaceCh),name) == 0 ) {
439 space_dict_chainS *pa_segment_to_space(seg)
442 space_dict_chainS *spaceCh;
444 for (spaceCh = space_dict_root;spaceCh;spaceCh=spaceCh->sd_next ) {
445 if ( spaceCh->sd_seg == seg ) {
453 subspace_dict_chainS *is_defined_subspace(name,subseg)
457 space_dict_chainS *spaceCh;
458 subspace_dict_chainS *subspCh;
460 for ( spaceCh = space_dict_root; spaceCh; spaceCh = spaceCh->sd_next ) {
461 for ( subspCh = spaceCh->sd_subspaces; subspCh; subspCh=subspCh->ssd_next ) {
463 if ( strcmp(SUBSPACE_NAME(subspCh),name) == 0 &&
464 subspCh->ssd_subseg == subseg ) {
466 if ( strcmp(SUBSPACE_NAME(subspCh),name) == 0 ) {
474 subspace_dict_chainS *pa_subsegment_to_subspace(seg,subseg)
478 space_dict_chainS *spaceCh;
479 subspace_dict_chainS *subspCh;
481 for ( spaceCh = space_dict_root; spaceCh; spaceCh = spaceCh->sd_next ) {
482 if ( spaceCh->sd_seg == seg ) {
483 for (subspCh = spaceCh->sd_subspaces;subspCh;subspCh=subspCh->ssd_next ) {
484 if ( subspCh->ssd_subseg == (int)subseg ) {
494 space_dict_chainS *pa_find_space_by_number(number)
497 space_dict_chainS *spaceCh;
499 for (spaceCh = space_dict_root;spaceCh;spaceCh=spaceCh->sd_next ) {
500 if ( SPACE_SPNUM(spaceCh) == number ) {
508 unsigned int pa_subspace_start(space,quadrant)
509 space_dict_chainS *space;
512 if ( (strcasecmp(SPACE_NAME(space),"$PRIVATE$") == 0) &&
516 else if ( space->sd_seg == data_section && quadrant == 1 ) { /* in case name is */
517 /* already converted */
518 /* to a space dict- */
526 int pa_next_subseg(space)
527 space_dict_chainS *space;
530 space->sd_last_subseg++;
531 return space->sd_last_subseg;
534 int is_last_defined_subspace(ssd)
535 subspace_dict_chainS *ssd;
538 for ( ;ssd; ssd = ssd->ssd_next ) {
539 if ( ssd->ssd_defined )
546 symbolS *pa_get_start_symbol(seg,subseg)
550 symbolS *start_symbol;
551 subspace_dict_chainS *ssd;
555 /* each time a new space is created, build a symbol called LS$START_seg_subseg$ */
556 /* where <space-name> is the name of the space */
557 /* the start symbol will be SS_LOCAL and ST_CODE */
559 if ( seg == bfd_make_section_old_way ( stdoutput, ".text" ) ||
560 seg == bfd_make_section_old_way ( stdoutput, ".data" ) ||
561 seg == bfd_make_section_old_way ( stdoutput, GDB_DEBUG_SPACE_NAME ) ) {
562 ssd = pa_subsegment_to_subspace(seg,subseg);
564 start_symbol = ssd->ssd_start_sym;
567 as_fatal("Internal error: missing subspace for (seg,subseg)=('%s',%d)",
571 as_fatal("Internal error: attempt to find start symbol for unloadable segment: '%s'",
578 Function to define a symbol whose address is the beginning of a subspace.
579 This function assumes the symbol is to be defined for the current subspace.
582 symbolS *pa_set_start_symbol(seg,subseg)
586 symbolS *start_symbol;
587 subspace_dict_chainS *ssd;
590 symbol_name = (char *)xmalloc(strlen("LS$START__000000$")+strlen(seg->name)+1);
592 sprintf(symbol_name,"LS$START_%s_%03d$",seg->name,subseg);
595 = symbol_new(symbol_name,seg,0,frag_now); /* XXX: not sure if value s.b. 0 or frag s.b. NULL */
597 start_symbol->bsym->flags = BSF_LOCAL; /* XXX: isn't there a macro defined for this? */
599 /* each time a new space is created, build a symbol called LS$START_seg_subseg$ */
600 /* where <space-name> is the name of the space */
601 /* the start symbol will be SS_LOCAL and ST_CODE */
602 /* This function assumes that (seg,subseg) is a new subsegment(subspace) */
604 if ( seg == bfd_make_section_old_way ( stdoutput, ".text" ) ||
605 seg == bfd_make_section_old_way ( stdoutput, ".data" ) ||
606 seg == bfd_make_section_old_way ( stdoutput, GDB_DEBUG_SPACE_NAME ) ) {
607 ssd = pa_subsegment_to_subspace(seg,subseg);
609 ssd->ssd_start_sym = start_symbol;
612 as_fatal("Internal error: missing subspace for (seg,subseg)=('%s',%d)",
616 as_fatal("Internal error: attempt to define start symbol for unloadable segment: '%s'",
624 obj_elf_frob_symbol (sym, punt)
629 /* If this is a local symbol, are there any relocations for */
630 /* which need this symbol? */
632 /* To find this out, we examine all relocations in all bfd */
633 /* sections that have relocations. If there is one that */
634 /* references this symbol, we need to keep this symbol. In */
635 /* this case, we return a true status. In all other cases, we */
636 /* return a false status. */
638 if ( S_IS_LOCAL(sym) ) {
639 asymbol *bsym = sym->bsym;
640 bfd *abfd = bsym->the_bfd;
643 for ( bsec = abfd->sections; bsec; bsec = bsec->next ) {
644 struct reloc_cache_entry **rlocs = bsec->orelocation;
645 int rcnt = bsec->reloc_count;
650 for ( i = 0; i < rcnt; i++ ) {
651 if ( rlocs[i]->sym_ptr_ptr
652 && rlocs[i]->sym_ptr_ptr[0] == bsym )
661 static void obj_elf_line() {
662 /* Assume delimiter is part of expression.
663 BSD4.2 as fails with delightful bug, so we
664 are not being incompatible here. */
665 new_logical_line((char *)NULL, (int)(get_absolute_expression()));
666 demand_empty_rest_of_line();
667 } /* obj_elf_line() */
672 * Handle .stabX directives, which used to be open-coded.
673 * So much creeping featurism overloaded the semantics that we decided
674 * to put all .stabX thinking in one place. Here.
676 * We try to make any .stabX directive legal. Other people's AS will often
677 * do assembly-time consistency checks: eg assigning meaning to n_type bits
678 * and "protecting" you from setting them to certain values. (They also zero
679 * certain bits before emitting symbols. Tut tut.)
681 * If an expression is not absolute we either gripe or use the relocation
682 * information. Other people's assemblers silently forget information they
683 * don't need and invent information they need that you didn't supply.
685 * .stabX directives always make a symbol table entry. It may be junk if
686 * the rest of your .stabX directive is malformed.
690 * pa_stab_symbol_string()
692 * Build a string dictionary entry for a .stabX symbol.
693 * The symbol is added to the .stabstr section.
697 static unsigned int gdb_string_index = 0;
700 elf_stab_symbol_string(string)
707 unsigned int old_gdb_string_index;
712 old_gdb_string_index = 0;
713 length = strlen(string);
714 clengthP = (char *)&length;
715 if ( length > 0 ) { /* Ordinary case. */
717 save_subseg = now_subseg;
719 /* Create the stab sections, if they are not already created. */
720 seg = bfd_get_section_by_name(stdoutput,".stabstr");
722 seg = bfd_make_section_old_way(stdoutput,".stabstr");
723 bfd_set_section_flags (stdoutput,
725 SEC_READONLY | SEC_ALLOC | SEC_LOAD );
727 subseg_new((char *) seg->name,save_subseg);
728 old_gdb_string_index = gdb_string_index;
730 while ( (c = *string++) )
734 FRAG_APPEND_1_CHAR( c );
737 FRAG_APPEND_1_CHAR( (char)0 );
742 FRAG_APPEND_1_CHAR( (char)0 );
746 subseg_new((char *) save_seg->name,save_subseg);
749 return old_gdb_string_index;
753 elf_stab_symbol(symbolP,stab_type)
762 /* the string index portion of the stab */
764 toP = frag_more( sizeof(long) +
765 sizeof(S_GET_TYPE(symbolP)) +
766 sizeof(S_GET_OTHER(symbolP)) +
767 sizeof(S_GET_DESC(symbolP)));
768 md_number_to_chars(toP,symbolP->sy_name_offset,sizeof(long));
769 md_number_to_chars(toP,
771 sizeof(S_GET_TYPE(symbolP)));
772 md_number_to_chars(toP + sizeof(S_GET_TYPE(symbolP)),
773 S_GET_OTHER(symbolP),
774 sizeof(S_GET_OTHER(symbolP)));
775 md_number_to_chars(toP + sizeof(S_GET_TYPE(symbolP))
776 + sizeof(S_GET_OTHER(symbolP)),
778 sizeof(S_GET_DESC(symbolP)));
780 /* n_value has to be relocated */
782 /* Don't bother relocating if we're only adding in a constant. */
784 if ((stab_type == 's' || stab_type == 'n') && symbolP->sy_forward == 0)
785 S_SET_VALUE(symbolP,S_GET_VALUE(symbolP->sy_forward));
788 md_number_to_chars(toP, S_GET_VALUE(symbolP),
789 sizeof(S_GET_VALUE(symbolP)));
792 if ( (stab_type == 's' || stab_type == 'n') && symbolP->sy_forward )
794 i = S_GET_TYPE(symbolP) & N_TYPE;
795 fix_new_hppa(frag_now, /* which frag */
796 toP-frag_now->fr_literal, /* where */
798 symbolP->sy_forward, /* addr of symbol for this stab */
801 i == N_UNDF || i == N_ABS, /* 1 if internal relocation */
802 R_HPPA, /* reloc type */
803 e_fsel, /* fixup field = F% */
805 0, /* arg_reloc descriptor */
809 else if ( stab_type == 'd' )
811 fix_new_hppa (frag_now, /* which frag */
812 toP-frag_now->fr_literal, /* where */
814 symbolP, /* addr of symbol for this stab */
818 R_HPPA, /* reloc type */
819 e_fsel, /* fixup field = F% */
821 0, /* arg_reloc descriptor */
826 /* What needs to replace the above code? */
831 static void obj_elf_stab(what)
836 symbolS * symbolP = 0;
842 asection *saved_seg = now_seg;
844 subsegT subseg = now_subseg;
846 seg = bfd_get_section_by_name(stdoutput,".stab");
849 seg = bfd_make_section_old_way(stdoutput,".stab");
850 bfd_set_section_flags (stdoutput,
852 SEC_READONLY | SEC_ALLOC | SEC_LOAD | SEC_RELOC);
856 * Enter with input_line_pointer pointing past .stabX and any following
860 string = demand_copy_C_string(& length);
862 if (* input_line_pointer == ',')
863 input_line_pointer ++;
866 as_bad("I need a comma after symbol's name");
874 * Input_line_pointer->after ','. String->symbol name.
878 symbolP = symbol_new(string, &bfd_und_section, 0, (struct frag *)0);
880 /* enter the string in the .stab string table (section .stabstr) */
881 symbolP->sy_name_offset = elf_stab_symbol_string(string);
886 S_SET_NAME(symbolP, NULL); /* .stabd feature. */
887 S_SET_VALUE(symbolP, obstack_next_free(&frags) - frag_now->fr_literal);
888 S_SET_SEGMENT(symbolP, now_seg);
889 symbolP->sy_frag = frag_now;
893 symbolP->sy_frag = &zero_address_frag;
897 symbolP->sy_frag = & zero_address_frag;
905 if (get_absolute_expression_and_terminator(&longint) == ',')
907 saved_type = longint;
908 S_SET_TYPE (symbolP, saved_type);
912 as_bad("I want a comma after the n_type expression");
914 input_line_pointer --; /* Backup over a non-',' char. */
920 if (get_absolute_expression_and_terminator(&longint) == ',')
921 S_SET_OTHER(symbolP, longint);
924 as_bad("I want a comma after the n_other expression");
926 input_line_pointer--; /* Backup over a non-',' char. */
932 S_SET_DESC(symbolP, get_absolute_expression());
933 if (what == 's' || what == 'n')
935 if (*input_line_pointer != ',')
937 as_bad("I want a comma after the n_desc expression");
942 input_line_pointer++;
948 if ( what=='s' || what=='n' ) {
950 S_SET_TYPE (symbolP, saved_type);
952 /* Emit the stab symbol. */
953 subseg_new((char *) seg->name,subseg);
954 elf_stab_symbol(symbolP, what);
955 subseg_new((char *) saved_seg->name,subseg);
957 if ( what=='s' || what=='n' && symbolP->sy_forward == NULL ) {
958 /* symbol is not needed in the regular symbol table */
959 symbol_remove(symbolP,&symbol_rootP,&symbol_lastP);
965 if (listing && !goof)
966 switch (S_GET_TYPE (symbolP))
969 listing_source_line (S_GET_DESC (symbolP));
973 listing_source_file (string);
979 ignore_rest_of_line();
981 demand_empty_rest_of_line ();
982 } /* obj_elf_stab() */
984 static void obj_elf_desc() {
992 * Frob invented at RMS' request. Set the n_desc of a symbol.
994 name = input_line_pointer;
995 c = get_symbol_end();
996 p = input_line_pointer;
999 if (*input_line_pointer != ',') {
1001 as_bad("Expected comma after name \"%s\"", name);
1003 ignore_rest_of_line();
1005 input_line_pointer ++;
1006 temp = get_absolute_expression();
1008 symbolP = symbol_find_or_make(name);
1010 S_SET_DESC(symbolP,temp);
1012 demand_empty_rest_of_line();
1013 } /* obj_elf_desc() */
1015 void obj_read_begin_hook()
1019 void obj_symbol_new_hook(symbolP)
1022 elf_symbol_type *esym = (elf_symbol_type *)symbolP;
1024 /* There is an Elf_Internal_Sym and an Elf_External_Sym. For now,
1025 just zero them out. */
1027 bzero((char *) &esym->internal_elf_sym,sizeof(Elf_Internal_Sym));
1028 bzero((char *) &esym->native_elf_sym,sizeof(Elf_External_Sym));
1031 static void obj_elf_version()
1039 asection *seg = now_seg;
1040 subsegT subseg = now_subseg;
1041 Elf_Internal_Note i_note;
1042 Elf_External_Note e_note;
1043 asection *note_secp = (asection *)NULL;
1047 if (* input_line_pointer == '\"') {
1048 ++input_line_pointer; /* -> 1st char of string. */
1049 name = input_line_pointer;
1051 while ( is_a_char(c = next_char_of_string()) )
1053 c = *input_line_pointer;
1054 *input_line_pointer = '\0';
1055 *(input_line_pointer-1) = '\0';
1056 *input_line_pointer = c;
1058 /* create the .note section if this is the first version string */
1060 note_secp = bfd_get_section_by_name(stdoutput,".note");
1061 if ( note_secp == (asection *)NULL ) {
1062 note_secp = bfd_make_section_old_way(stdoutput,".note");
1063 bfd_set_section_flags(stdoutput,
1065 SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS);
1068 /* process the version string */
1070 subseg_new((char *)note_secp->name, 0);
1073 i_note.namesz = ((len + 1) + 3) & ~3; /* round this to word boundary */
1074 i_note.descsz = 0; /* no description */
1075 i_note.type = NT_VERSION;
1076 p = frag_more(sizeof(e_note.namesz));
1077 md_number_to_chars(p, i_note.namesz, 4);
1078 p = frag_more(sizeof(e_note.descsz));
1079 md_number_to_chars(p, i_note.descsz, 4);
1080 p = frag_more(sizeof(e_note.type));
1081 md_number_to_chars(p, i_note.type, 4);
1083 for ( i = 0; i < len; i++ ) {
1086 FRAG_APPEND_1_CHAR( ch );
1091 subseg_new((char *)seg->name,subseg);
1094 as_bad( "Expected \"-ed string" );
1096 demand_empty_rest_of_line();
1102 char *name = input_line_pointer;
1103 char c = get_symbol_end ();
1109 p = input_line_pointer;
1112 if (*input_line_pointer != ',')
1115 as_bad ("expected comma after name `%s' in .size directive", name);
1117 ignore_rest_of_line ();
1120 input_line_pointer++;
1121 sec = expression (&exp);
1122 if (sec == absent_section)
1124 as_bad ("missing expression in .size directive");
1125 exp.X_seg = absolute_section;
1126 exp.X_add_number = 0;
1129 sym = symbol_find_or_make (name);
1131 if (sec == absolute_section)
1132 S_SET_SIZE (sym, exp.X_add_number);
1134 as_tsktsk (".size not yet supported, ignored");
1135 demand_empty_rest_of_line ();
1141 char *name = input_line_pointer;
1142 char c = get_symbol_end ();
1147 p = input_line_pointer;
1150 if (*input_line_pointer != ',')
1152 as_bad ("expected comma after name in .type directive");
1154 ignore_rest_of_line ();
1157 input_line_pointer++;
1159 if (*input_line_pointer != '#')
1161 as_bad ("expected `#' after comma in .type directive");
1164 input_line_pointer++;
1165 if (!strncmp ("function", input_line_pointer, sizeof ("function") - 1))
1167 type = BSF_FUNCTION;
1168 input_line_pointer += sizeof ("function") - 1;
1172 as_bad ("unrecognized symbol type, ignored");
1175 demand_empty_rest_of_line ();
1177 sym = symbol_find_or_make (name);
1178 sym->bsym->flags = type;
1187 string = demand_copy_C_string (&xxx);
1188 as_tsktsk (".ident not supported, ignoring");