1 /* ELF object file format
2 Copyright (C) 1992-2016 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 3,
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 License
17 along with GAS; see the file COPYING. If not, write to the Free
18 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
21 #define OBJ_HEADER "obj-elf.h"
23 #include "safe-ctype.h"
26 #include "struc-symbol.h"
27 #include "dwarf2dbg.h"
29 #ifndef ECOFF_DEBUGGING
30 #define ECOFF_DEBUGGING 0
32 #define NEED_ECOFF_DEBUG
35 #ifdef NEED_ECOFF_DEBUG
40 #include "elf/alpha.h"
56 #include "elf/x86-64.h"
64 #include "elf/nios2.h"
67 static void obj_elf_line (int);
68 static void obj_elf_size (int);
69 static void obj_elf_type (int);
70 static void obj_elf_ident (int);
71 static void obj_elf_weak (int);
72 static void obj_elf_local (int);
73 static void obj_elf_visibility (int);
74 static void obj_elf_symver (int);
75 static void obj_elf_subsection (int);
76 static void obj_elf_popsection (int);
77 static void obj_elf_gnu_attribute (int);
78 static void obj_elf_tls_common (int);
79 static void obj_elf_lcomm (int);
80 static void obj_elf_struct (int);
82 static const pseudo_typeS elf_pseudo_table
[] =
84 {"comm", obj_elf_common
, 0},
85 {"common", obj_elf_common
, 1},
86 {"ident", obj_elf_ident
, 0},
87 {"lcomm", obj_elf_lcomm
, 0},
88 {"local", obj_elf_local
, 0},
89 {"previous", obj_elf_previous
, 0},
90 {"section", obj_elf_section
, 0},
91 {"section.s", obj_elf_section
, 0},
92 {"sect", obj_elf_section
, 0},
93 {"sect.s", obj_elf_section
, 0},
94 {"pushsection", obj_elf_section
, 1},
95 {"popsection", obj_elf_popsection
, 0},
96 {"size", obj_elf_size
, 0},
97 {"type", obj_elf_type
, 0},
98 {"version", obj_elf_version
, 0},
99 {"weak", obj_elf_weak
, 0},
101 /* These define symbol visibility. */
102 {"internal", obj_elf_visibility
, STV_INTERNAL
},
103 {"hidden", obj_elf_visibility
, STV_HIDDEN
},
104 {"protected", obj_elf_visibility
, STV_PROTECTED
},
106 /* These are used for stabs-in-elf configurations. */
107 {"line", obj_elf_line
, 0},
109 /* This is a GNU extension to handle symbol versions. */
110 {"symver", obj_elf_symver
, 0},
112 /* A GNU extension to change subsection only. */
113 {"subsection", obj_elf_subsection
, 0},
115 /* These are GNU extensions to aid in garbage collecting C++ vtables. */
116 {"vtable_inherit", (void (*) (int)) &obj_elf_vtable_inherit
, 0},
117 {"vtable_entry", (void (*) (int)) &obj_elf_vtable_entry
, 0},
119 /* A GNU extension for object attributes. */
120 {"gnu_attribute", obj_elf_gnu_attribute
, 0},
122 /* These are used for dwarf. */
126 /* These are used for dwarf2. */
127 { "file", (void (*) (int)) dwarf2_directive_file
, 0 },
128 { "loc", dwarf2_directive_loc
, 0 },
129 { "loc_mark_labels", dwarf2_directive_loc_mark_labels
, 0 },
131 /* We need to trap the section changing calls to handle .previous. */
132 {"data", obj_elf_data
, 0},
133 {"offset", obj_elf_struct
, 0},
134 {"struct", obj_elf_struct
, 0},
135 {"text", obj_elf_text
, 0},
137 {"tls_common", obj_elf_tls_common
, 0},
143 static const pseudo_typeS ecoff_debug_pseudo_table
[] =
145 #ifdef NEED_ECOFF_DEBUG
146 /* COFF style debugging information for ECOFF. .ln is not used; .loc
148 { "def", ecoff_directive_def
, 0 },
149 { "dim", ecoff_directive_dim
, 0 },
150 { "endef", ecoff_directive_endef
, 0 },
151 { "file", ecoff_directive_file
, 0 },
152 { "scl", ecoff_directive_scl
, 0 },
153 { "tag", ecoff_directive_tag
, 0 },
154 { "val", ecoff_directive_val
, 0 },
156 /* COFF debugging requires pseudo-ops .size and .type, but ELF
157 already has meanings for those. We use .esize and .etype
158 instead. These are only generated by gcc anyhow. */
159 { "esize", ecoff_directive_size
, 0 },
160 { "etype", ecoff_directive_type
, 0 },
162 /* ECOFF specific debugging information. */
163 { "begin", ecoff_directive_begin
, 0 },
164 { "bend", ecoff_directive_bend
, 0 },
165 { "end", ecoff_directive_end
, 0 },
166 { "ent", ecoff_directive_ent
, 0 },
167 { "fmask", ecoff_directive_fmask
, 0 },
168 { "frame", ecoff_directive_frame
, 0 },
169 { "loc", ecoff_directive_loc
, 0 },
170 { "mask", ecoff_directive_mask
, 0 },
172 /* Other ECOFF directives. */
173 { "extern", ecoff_directive_extern
, 0 },
175 /* These are used on Irix. I don't know how to implement them. */
176 { "alias", s_ignore
, 0 },
177 { "bgnb", s_ignore
, 0 },
178 { "endb", s_ignore
, 0 },
179 { "lab", s_ignore
, 0 },
180 { "noalias", s_ignore
, 0 },
181 { "verstamp", s_ignore
, 0 },
182 { "vreg", s_ignore
, 0 },
185 {NULL
, NULL
, 0} /* end sentinel */
189 #include "aout/aout64.h"
191 /* This is called when the assembler starts. */
193 asection
*elf_com_section_ptr
;
200 /* Add symbols for the known sections to the symbol table. */
201 s
= bfd_get_section_by_name (stdoutput
, TEXT_SECTION_NAME
);
202 symbol_table_insert (section_symbol (s
));
203 s
= bfd_get_section_by_name (stdoutput
, DATA_SECTION_NAME
);
204 symbol_table_insert (section_symbol (s
));
205 s
= bfd_get_section_by_name (stdoutput
, BSS_SECTION_NAME
);
206 symbol_table_insert (section_symbol (s
));
207 elf_com_section_ptr
= bfd_com_section_ptr
;
211 elf_pop_insert (void)
213 pop_insert (elf_pseudo_table
);
215 pop_insert (ecoff_debug_pseudo_table
);
219 elf_s_get_size (symbolS
*sym
)
221 return S_GET_SIZE (sym
);
225 elf_s_set_size (symbolS
*sym
, bfd_vma sz
)
227 S_SET_SIZE (sym
, sz
);
231 elf_s_get_align (symbolS
*sym
)
233 return S_GET_ALIGN (sym
);
237 elf_s_set_align (symbolS
*sym
, bfd_vma align
)
239 S_SET_ALIGN (sym
, align
);
243 elf_s_get_other (symbolS
*sym
)
245 return elf_symbol (symbol_get_bfdsym (sym
))->internal_elf_sym
.st_other
;
249 elf_s_set_other (symbolS
*sym
, int other
)
251 S_SET_OTHER (sym
, other
);
255 elf_sec_sym_ok_for_reloc (asection
*sec
)
257 return obj_sec_sym_ok_for_reloc (sec
);
261 elf_file_symbol (const char *s
, int appfile
)
264 || symbol_rootP
== NULL
265 || symbol_rootP
->bsym
== NULL
266 || (symbol_rootP
->bsym
->flags
& BSF_FILE
) == 0)
271 sym
= symbol_new (s
, absolute_section
, 0, NULL
);
272 symbol_set_frag (sym
, &zero_address_frag
);
274 name_length
= strlen (s
);
275 if (name_length
> strlen (S_GET_NAME (sym
)))
277 obstack_grow (¬es
, s
, name_length
+ 1);
278 S_SET_NAME (sym
, (const char *) obstack_finish (¬es
));
281 strcpy ((char *) S_GET_NAME (sym
), s
);
283 symbol_get_bfdsym (sym
)->flags
|= BSF_FILE
;
285 if (symbol_rootP
!= sym
286 && (symbol_rootP
->bsym
== NULL
287 || !(symbol_rootP
->bsym
->flags
& BSF_FILE
)))
289 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
290 symbol_insert (sym
, symbol_rootP
, &symbol_rootP
, &symbol_lastP
);
294 verify_symbol_chain (symbol_rootP
, symbol_lastP
);
298 #ifdef NEED_ECOFF_DEBUG
299 ecoff_new_file (s
, appfile
);
303 /* Called from read.c:s_comm after we've parsed .comm symbol, size.
304 Parse a possible alignment value. */
307 elf_common_parse (int ignore ATTRIBUTE_UNUSED
, symbolS
*symbolP
, addressT size
)
310 int is_local
= symbol_get_obj (symbolP
)->local
;
312 if (*input_line_pointer
== ',')
314 char *save
= input_line_pointer
;
316 input_line_pointer
++;
319 if (*input_line_pointer
== '"')
321 /* For sparc. Accept .common symbol, length, "bss" */
322 input_line_pointer
++;
323 /* Some use the dot, some don't. */
324 if (*input_line_pointer
== '.')
325 input_line_pointer
++;
326 /* Some say data, some say bss. */
327 if (strncmp (input_line_pointer
, "bss\"", 4) == 0)
328 input_line_pointer
+= 4;
329 else if (strncmp (input_line_pointer
, "data\"", 5) == 0)
330 input_line_pointer
+= 5;
333 char *p
= input_line_pointer
;
338 while (!is_end_of_line
[(unsigned char) *input_line_pointer
])
339 if (*input_line_pointer
++ == '"')
341 c
= *input_line_pointer
;
342 *input_line_pointer
= '\0';
343 as_bad (_("bad .common segment %s"), p
);
344 *input_line_pointer
= c
;
345 ignore_rest_of_line ();
348 /* ??? Don't ask me why these are always global. */
353 input_line_pointer
= save
;
354 align
= parse_align (is_local
);
355 if (align
== (addressT
) -1)
362 bss_alloc (symbolP
, size
, align
);
363 S_CLEAR_EXTERNAL (symbolP
);
367 S_SET_VALUE (symbolP
, size
);
368 S_SET_ALIGN (symbolP
, align
);
369 S_SET_EXTERNAL (symbolP
);
370 S_SET_SEGMENT (symbolP
, elf_com_section_ptr
);
373 symbol_get_bfdsym (symbolP
)->flags
|= BSF_OBJECT
;
379 obj_elf_common (int is_common
)
381 if (flag_mri
&& is_common
)
384 s_comm_internal (0, elf_common_parse
);
388 obj_elf_tls_common (int ignore ATTRIBUTE_UNUSED
)
390 symbolS
*symbolP
= s_comm_internal (0, elf_common_parse
);
393 symbol_get_bfdsym (symbolP
)->flags
|= BSF_THREAD_LOCAL
;
397 obj_elf_lcomm (int ignore ATTRIBUTE_UNUSED
)
399 symbolS
*symbolP
= s_comm_internal (0, s_lcomm_internal
);
402 symbol_get_bfdsym (symbolP
)->flags
|= BSF_OBJECT
;
406 get_sym_from_input_line_and_check (void)
412 c
= get_symbol_name (& name
);
413 sym
= symbol_find_or_make (name
);
414 *input_line_pointer
= c
;
415 SKIP_WHITESPACE_AFTER_NAME ();
417 /* There is no symbol name if input_line_pointer has not moved. */
418 if (name
== input_line_pointer
)
419 as_bad (_("Missing symbol name in directive"));
424 obj_elf_local (int ignore ATTRIBUTE_UNUSED
)
431 symbolP
= get_sym_from_input_line_and_check ();
432 c
= *input_line_pointer
;
433 S_CLEAR_EXTERNAL (symbolP
);
434 symbol_get_obj (symbolP
)->local
= 1;
437 input_line_pointer
++;
439 if (*input_line_pointer
== '\n')
444 demand_empty_rest_of_line ();
448 obj_elf_weak (int ignore ATTRIBUTE_UNUSED
)
455 symbolP
= get_sym_from_input_line_and_check ();
456 c
= *input_line_pointer
;
457 S_SET_WEAK (symbolP
);
460 input_line_pointer
++;
462 if (*input_line_pointer
== '\n')
467 demand_empty_rest_of_line ();
471 obj_elf_visibility (int visibility
)
476 elf_symbol_type
*elfsym
;
480 symbolP
= get_sym_from_input_line_and_check ();
482 bfdsym
= symbol_get_bfdsym (symbolP
);
483 elfsym
= elf_symbol_from (bfd_asymbol_bfd (bfdsym
), bfdsym
);
487 elfsym
->internal_elf_sym
.st_other
&= ~3;
488 elfsym
->internal_elf_sym
.st_other
|= visibility
;
490 c
= *input_line_pointer
;
493 input_line_pointer
++;
497 if (*input_line_pointer
== '\n')
503 demand_empty_rest_of_line ();
506 static segT previous_section
;
507 static int previous_subsection
;
511 struct section_stack
*next
;
513 int subseg
, prev_subseg
;
516 static struct section_stack
*section_stack
;
519 get_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
, void *inf
)
521 const char *gname
= (const char *) inf
;
522 const char *group_name
= elf_group_name (sec
);
524 return (group_name
== gname
525 || (group_name
!= NULL
527 && strcmp (group_name
, gname
) == 0));
530 /* Handle the .section pseudo-op. This code supports two different
533 The first is found on Solaris, and looks like
534 .section ".sec1",#alloc,#execinstr,#write
535 Here the names after '#' are the SHF_* flags to turn on for the
536 section. I'm not sure how it determines the SHT_* type (BFD
537 doesn't really give us control over the type, anyhow).
539 The second format is found on UnixWare, and probably most SVR4
540 machines, and looks like
541 .section .sec1,"a",@progbits
542 The quoted string may contain any combination of a, w, x, and
543 represents the SHF_* flags to turn on for the section. The string
544 beginning with '@' can be progbits or nobits. There should be
545 other possibilities, but I don't know what they are. In any case,
546 BFD doesn't really let us set the section type. */
549 obj_elf_change_section (const char *name
,
553 const char *group_name
,
560 const struct elf_backend_data
*bed
;
561 const struct bfd_elf_special_section
*ssect
;
563 #ifdef md_flush_pending_output
564 md_flush_pending_output ();
567 /* Switch to the section, creating it if necessary. */
570 struct section_stack
*elt
;
571 elt
= (struct section_stack
*) xmalloc (sizeof (struct section_stack
));
572 elt
->next
= section_stack
;
574 elt
->prev_seg
= previous_section
;
575 elt
->subseg
= now_subseg
;
576 elt
->prev_subseg
= previous_subsection
;
579 previous_section
= now_seg
;
580 previous_subsection
= now_subseg
;
582 old_sec
= bfd_get_section_by_name_if (stdoutput
, name
, get_section
,
583 (void *) group_name
);
590 sec
= subseg_force_new (name
, 0);
592 bed
= get_elf_backend_data (stdoutput
);
593 ssect
= (*bed
->get_sec_type_attr
) (stdoutput
, sec
);
597 bfd_boolean override
= FALSE
;
599 if (type
== SHT_NULL
)
601 else if (type
!= ssect
->type
)
604 /* Some older versions of gcc will emit
606 .section .init_array,"aw",@progbits
608 for __attribute__ ((section (".init_array"))).
609 "@progbits" is incorrect. Also for x86-64 large bss
610 sections, some older versions of gcc will emit
612 .section .lbss,"aw",@progbits
614 "@progbits" is incorrect. */
616 && (bed
->s
->arch_size
!= 64
617 || !(ssect
->attr
& SHF_X86_64_LARGE
))
619 && ssect
->type
!= SHT_INIT_ARRAY
620 && ssect
->type
!= SHT_FINI_ARRAY
621 && ssect
->type
!= SHT_PREINIT_ARRAY
)
623 /* We allow to specify any type for a .note section. */
624 if (ssect
->type
!= SHT_NOTE
625 /* Processor and application defined types are allowed too. */
626 && type
< SHT_LOPROC
)
627 as_warn (_("setting incorrect section type for %s"),
632 as_warn (_("ignoring incorrect section type for %s"),
638 if (old_sec
== NULL
&& ((attr
& ~(SHF_MASKOS
| SHF_MASKPROC
))
639 & ~ssect
->attr
) != 0)
641 /* As a GNU extension, we permit a .note section to be
642 allocatable. If the linker sees an allocatable .note
643 section, it will create a PT_NOTE segment in the output
644 file. We also allow "x" for .note.GNU-stack. */
645 if (ssect
->type
== SHT_NOTE
646 && (attr
== SHF_ALLOC
|| attr
== SHF_EXECINSTR
))
648 /* Allow different SHF_MERGE and SHF_STRINGS if we have
649 something like .rodata.str. */
650 else if (ssect
->suffix_length
== -2
651 && name
[ssect
->prefix_length
] == '.'
655 & ~SHF_STRINGS
) == 0)
657 /* .interp, .strtab and .symtab can have SHF_ALLOC. */
658 else if (attr
== SHF_ALLOC
659 && (strcmp (name
, ".interp") == 0
660 || strcmp (name
, ".strtab") == 0
661 || strcmp (name
, ".symtab") == 0))
663 /* .note.GNU-stack can have SHF_EXECINSTR. */
664 else if (attr
== SHF_EXECINSTR
665 && strcmp (name
, ".note.GNU-stack") == 0)
668 /* A section on Alpha may have SHF_ALPHA_GPREL. */
669 else if ((attr
& ~ssect
->attr
) == SHF_ALPHA_GPREL
)
673 else if (attr
== (SHF_EXECINSTR
| SHF_WRITE
| SHF_ALLOC
)
674 && (ssect
->type
== SHT_INIT_ARRAY
675 || ssect
->type
== SHT_FINI_ARRAY
676 || ssect
->type
== SHT_PREINIT_ARRAY
))
677 /* RX init/fini arrays can and should have the "awx" attributes set. */
682 if (group_name
== NULL
)
683 as_warn (_("setting incorrect section attributes for %s"),
689 if (!override
&& old_sec
== NULL
)
693 /* Convert ELF type and flags to BFD flags. */
695 | ((attr
& SHF_WRITE
) ? 0 : SEC_READONLY
)
696 | ((attr
& SHF_ALLOC
) ? SEC_ALLOC
: 0)
697 | (((attr
& SHF_ALLOC
) && type
!= SHT_NOBITS
) ? SEC_LOAD
: 0)
698 | ((attr
& SHF_EXECINSTR
) ? SEC_CODE
: 0)
699 | ((attr
& SHF_MERGE
) ? SEC_MERGE
: 0)
700 | ((attr
& SHF_STRINGS
) ? SEC_STRINGS
: 0)
701 | ((attr
& SHF_EXCLUDE
) ? SEC_EXCLUDE
: 0)
702 | ((attr
& SHF_TLS
) ? SEC_THREAD_LOCAL
: 0));
703 #ifdef md_elf_section_flags
704 flags
= md_elf_section_flags (flags
, attr
, type
);
708 flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
714 if (type
== SHT_NULL
)
715 type
= bfd_elf_get_default_section_type (flags
);
716 elf_section_type (sec
) = type
;
717 elf_section_flags (sec
) = attr
;
719 /* Prevent SEC_HAS_CONTENTS from being inadvertently set. */
720 if (type
== SHT_NOBITS
)
721 seg_info (sec
)->bss
= 1;
723 bfd_set_section_flags (stdoutput
, sec
, flags
);
724 if (flags
& SEC_MERGE
)
725 sec
->entsize
= entsize
;
726 elf_group_name (sec
) = group_name
;
728 /* Add a symbol for this section to the symbol table. */
729 secsym
= symbol_find (name
);
731 symbol_set_bfdsym (secsym
, sec
->symbol
);
733 symbol_table_insert (section_symbol (sec
));
738 && (unsigned) type
!= elf_section_type (old_sec
))
739 as_warn (_("ignoring changed section type for %s"), name
);
743 /* If section attributes are specified the second time we see a
744 particular section, then check that they are the same as we
745 saw the first time. */
746 if (((old_sec
->flags
^ flags
)
747 & (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_CODE
748 | SEC_EXCLUDE
| SEC_SORT_ENTRIES
| SEC_MERGE
| SEC_STRINGS
749 | SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
750 | SEC_THREAD_LOCAL
)))
751 as_warn (_("ignoring changed section attributes for %s"), name
);
753 /* FIXME: Maybe we should consider removing a previously set
754 processor or application specific attribute as suspicious ? */
755 elf_section_flags (sec
) = attr
;
757 if ((flags
& SEC_MERGE
) && old_sec
->entsize
!= (unsigned) entsize
)
758 as_warn (_("ignoring changed section entity size for %s"), name
);
762 #ifdef md_elf_section_change_hook
763 md_elf_section_change_hook ();
768 obj_elf_parse_section_letters (char *str
, size_t len
, bfd_boolean
*is_clone
)
787 attr
|= SHF_EXECINSTR
;
806 if (*(str
- 1) == 'a')
809 if (len
> 1 && str
[1] == 's')
818 char *bad_msg
= _("unrecognized .section attribute: want a,e,w,x,M,S,G,T or number");
819 #ifdef md_elf_section_letter
820 bfd_vma md_attr
= md_elf_section_letter (*str
, &bad_msg
);
821 if (md_attr
!= (bfd_vma
) -1)
829 attr
|= strtoul (str
, & end
, 0);
830 /* Update str and len, allowing for the fact that
831 we will execute str++ and len-- below. */
837 as_fatal ("%s", bad_msg
);
848 obj_elf_section_type (char *str
, size_t len
, bfd_boolean warn
)
850 if (len
== 8 && strncmp (str
, "progbits", 8) == 0)
852 if (len
== 6 && strncmp (str
, "nobits", 6) == 0)
854 if (len
== 4 && strncmp (str
, "note", 4) == 0)
856 if (len
== 10 && strncmp (str
, "init_array", 10) == 0)
857 return SHT_INIT_ARRAY
;
858 if (len
== 10 && strncmp (str
, "fini_array", 10) == 0)
859 return SHT_FINI_ARRAY
;
860 if (len
== 13 && strncmp (str
, "preinit_array", 13) == 0)
861 return SHT_PREINIT_ARRAY
;
863 #ifdef md_elf_section_type
865 int md_type
= md_elf_section_type (str
, len
);
874 int type
= strtoul (str
, & end
, 0);
876 if (warn
&& (size_t) (end
- str
) != len
)
877 as_warn (_("extraneous characters at end of numeric section type"));
883 as_warn (_("unrecognized section type"));
888 obj_elf_section_word (char *str
, size_t len
, int *type
)
892 if (len
== 5 && strncmp (str
, "write", 5) == 0)
894 if (len
== 5 && strncmp (str
, "alloc", 5) == 0)
896 if (len
== 9 && strncmp (str
, "execinstr", 9) == 0)
897 return SHF_EXECINSTR
;
898 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
900 if (len
== 3 && strncmp (str
, "tls", 3) == 0)
903 #ifdef md_elf_section_word
905 bfd_vma md_attr
= md_elf_section_word (str
, len
);
911 ret
= obj_elf_section_type (str
, len
, FALSE
);
915 as_warn (_("unrecognized section attribute"));
920 /* Get name of section. */
922 obj_elf_section_name (void)
927 if (*input_line_pointer
== '"')
931 name
= demand_copy_C_string (&dummy
);
934 ignore_rest_of_line ();
940 char *end
= input_line_pointer
;
942 while (0 == strchr ("\n\t,; ", *end
))
944 if (end
== input_line_pointer
)
946 as_bad (_("missing name"));
947 ignore_rest_of_line ();
951 name
= (char *) xmalloc (end
- input_line_pointer
+ 1);
952 memcpy (name
, input_line_pointer
, end
- input_line_pointer
);
953 name
[end
- input_line_pointer
] = '\0';
955 while (flag_sectname_subst
)
957 char *subst
= strchr (name
, '%');
958 if (subst
&& subst
[1] == 'S')
960 int oldlen
= strlen (name
);
961 int substlen
= strlen (now_seg
->name
);
962 int newlen
= oldlen
- 2 + substlen
;
963 char *newname
= (char *) xmalloc (newlen
+ 1);
964 int headlen
= subst
- name
;
965 memcpy (newname
, name
, headlen
);
966 strcpy (newname
+ headlen
, now_seg
->name
);
967 strcat (newname
+ headlen
, subst
+ 2);
975 #ifdef tc_canonicalize_section_name
976 name
= tc_canonicalize_section_name (name
);
978 input_line_pointer
= end
;
985 obj_elf_section (int push
)
987 char *name
, *group_name
, *beg
;
992 subsegT new_subsection
= -1;
999 #ifdef md_flush_pending_output
1000 md_flush_pending_output ();
1003 previous_section
= now_seg
;
1004 previous_subsection
= now_subseg
;
1006 s_mri_sect (&mri_type
);
1008 #ifdef md_elf_section_change_hook
1009 md_elf_section_change_hook ();
1014 #endif /* ! defined (TC_I370) */
1016 name
= obj_elf_section_name ();
1025 if (*input_line_pointer
== ',')
1027 /* Skip the comma. */
1028 ++input_line_pointer
;
1031 if (push
&& ISDIGIT (*input_line_pointer
))
1033 /* .pushsection has an optional subsection. */
1034 new_subsection
= (subsegT
) get_absolute_expression ();
1038 /* Stop if we don't see a comma. */
1039 if (*input_line_pointer
!= ',')
1042 /* Skip the comma. */
1043 ++input_line_pointer
;
1047 if (*input_line_pointer
== '"')
1049 bfd_boolean is_clone
;
1051 beg
= demand_copy_C_string (&dummy
);
1054 ignore_rest_of_line ();
1057 attr
|= obj_elf_parse_section_letters (beg
, strlen (beg
), &is_clone
);
1060 if (*input_line_pointer
== ',')
1063 char *save
= input_line_pointer
;
1065 ++input_line_pointer
;
1067 c
= *input_line_pointer
;
1070 beg
= demand_copy_C_string (&dummy
);
1073 ignore_rest_of_line ();
1076 type
= obj_elf_section_type (beg
, strlen (beg
), TRUE
);
1078 else if (c
== '@' || c
== '%')
1080 ++input_line_pointer
;
1082 if (ISDIGIT (* input_line_pointer
))
1084 type
= strtoul (input_line_pointer
, & input_line_pointer
, 0);
1088 c
= get_symbol_name (& beg
);
1089 (void) restore_line_pointer (c
);
1090 type
= obj_elf_section_type (beg
, input_line_pointer
- beg
, TRUE
);
1094 input_line_pointer
= save
;
1098 if ((attr
& SHF_MERGE
) != 0 && *input_line_pointer
== ',')
1100 ++input_line_pointer
;
1102 entsize
= get_absolute_expression ();
1106 as_warn (_("invalid merge entity size"));
1111 else if ((attr
& SHF_MERGE
) != 0)
1113 as_warn (_("entity size for SHF_MERGE not specified"));
1117 if ((attr
& SHF_GROUP
) != 0 && is_clone
)
1119 as_warn (_("? section flag ignored with G present"));
1122 if ((attr
& SHF_GROUP
) != 0 && *input_line_pointer
== ',')
1124 ++input_line_pointer
;
1125 group_name
= obj_elf_section_name ();
1126 if (group_name
== NULL
)
1128 else if (*input_line_pointer
== ',')
1130 ++input_line_pointer
;
1132 if (strncmp (input_line_pointer
, "comdat", 6) == 0)
1134 input_line_pointer
+= 6;
1138 else if (strncmp (name
, ".gnu.linkonce", 13) == 0)
1141 else if ((attr
& SHF_GROUP
) != 0)
1143 as_warn (_("group name for SHF_GROUP not specified"));
1149 const char *now_group
= elf_group_name (now_seg
);
1150 if (now_group
!= NULL
)
1152 group_name
= xstrdup (now_group
);
1153 linkonce
= (now_seg
->flags
& SEC_LINK_ONCE
) != 0;
1164 if (*input_line_pointer
!= '#')
1166 as_bad (_("character following name is not '#'"));
1167 ignore_rest_of_line ();
1170 ++input_line_pointer
;
1171 c
= get_symbol_name (& beg
);
1172 (void) restore_line_pointer (c
);
1174 attr
|= obj_elf_section_word (beg
, input_line_pointer
- beg
, & type
);
1178 while (*input_line_pointer
++ == ',');
1179 --input_line_pointer
;
1184 demand_empty_rest_of_line ();
1186 obj_elf_change_section (name
, type
, attr
, entsize
, group_name
, linkonce
, push
);
1188 if (push
&& new_subsection
!= -1)
1189 subseg_set (now_seg
, new_subsection
);
1192 /* Change to the .data section. */
1195 obj_elf_data (int i
)
1197 #ifdef md_flush_pending_output
1198 md_flush_pending_output ();
1201 previous_section
= now_seg
;
1202 previous_subsection
= now_subseg
;
1205 #ifdef md_elf_section_change_hook
1206 md_elf_section_change_hook ();
1210 /* Change to the .text section. */
1213 obj_elf_text (int i
)
1215 #ifdef md_flush_pending_output
1216 md_flush_pending_output ();
1219 previous_section
= now_seg
;
1220 previous_subsection
= now_subseg
;
1223 #ifdef md_elf_section_change_hook
1224 md_elf_section_change_hook ();
1228 /* Change to the *ABS* section. */
1231 obj_elf_struct (int i
)
1233 #ifdef md_flush_pending_output
1234 md_flush_pending_output ();
1237 previous_section
= now_seg
;
1238 previous_subsection
= now_subseg
;
1241 #ifdef md_elf_section_change_hook
1242 md_elf_section_change_hook ();
1247 obj_elf_subsection (int ignore ATTRIBUTE_UNUSED
)
1251 #ifdef md_flush_pending_output
1252 md_flush_pending_output ();
1255 previous_section
= now_seg
;
1256 previous_subsection
= now_subseg
;
1258 temp
= get_absolute_expression ();
1259 subseg_set (now_seg
, (subsegT
) temp
);
1260 demand_empty_rest_of_line ();
1262 #ifdef md_elf_section_change_hook
1263 md_elf_section_change_hook ();
1267 /* This can be called from the processor backends if they change
1271 obj_elf_section_change_hook (void)
1273 previous_section
= now_seg
;
1274 previous_subsection
= now_subseg
;
1278 obj_elf_previous (int ignore ATTRIBUTE_UNUSED
)
1283 if (previous_section
== 0)
1285 as_warn (_(".previous without corresponding .section; ignored"));
1289 #ifdef md_flush_pending_output
1290 md_flush_pending_output ();
1293 new_section
= previous_section
;
1294 new_subsection
= previous_subsection
;
1295 previous_section
= now_seg
;
1296 previous_subsection
= now_subseg
;
1297 subseg_set (new_section
, new_subsection
);
1299 #ifdef md_elf_section_change_hook
1300 md_elf_section_change_hook ();
1305 obj_elf_popsection (int xxx ATTRIBUTE_UNUSED
)
1307 struct section_stack
*top
= section_stack
;
1311 as_warn (_(".popsection without corresponding .pushsection; ignored"));
1315 #ifdef md_flush_pending_output
1316 md_flush_pending_output ();
1319 section_stack
= top
->next
;
1320 previous_section
= top
->prev_seg
;
1321 previous_subsection
= top
->prev_subseg
;
1322 subseg_set (top
->seg
, top
->subseg
);
1325 #ifdef md_elf_section_change_hook
1326 md_elf_section_change_hook ();
1331 obj_elf_line (int ignore ATTRIBUTE_UNUSED
)
1333 /* Assume delimiter is part of expression. BSD4.2 as fails with
1334 delightful bug, so we are not being incompatible here. */
1335 new_logical_line (NULL
, get_absolute_expression ());
1336 demand_empty_rest_of_line ();
1339 /* This handles the .symver pseudo-op, which is used to specify a
1340 symbol version. The syntax is ``.symver NAME,SYMVERNAME''.
1341 SYMVERNAME may contain ELF_VER_CHR ('@') characters. This
1342 pseudo-op causes the assembler to emit a symbol named SYMVERNAME
1343 with the same value as the symbol NAME. */
1346 obj_elf_symver (int ignore ATTRIBUTE_UNUSED
)
1353 sym
= get_sym_from_input_line_and_check ();
1355 if (*input_line_pointer
!= ',')
1357 as_bad (_("expected comma after name in .symver"));
1358 ignore_rest_of_line ();
1362 ++input_line_pointer
;
1365 /* Temporarily include '@' in symbol names. */
1366 old_lexat
= lex_type
[(unsigned char) '@'];
1367 lex_type
[(unsigned char) '@'] |= LEX_NAME
;
1368 c
= get_symbol_name (& name
);
1369 lex_type
[(unsigned char) '@'] = old_lexat
;
1371 if (symbol_get_obj (sym
)->versioned_name
== NULL
)
1373 symbol_get_obj (sym
)->versioned_name
= xstrdup (name
);
1375 (void) restore_line_pointer (c
);
1377 if (strchr (symbol_get_obj (sym
)->versioned_name
,
1378 ELF_VER_CHR
) == NULL
)
1380 as_bad (_("missing version name in `%s' for symbol `%s'"),
1381 symbol_get_obj (sym
)->versioned_name
,
1383 ignore_rest_of_line ();
1389 if (strcmp (symbol_get_obj (sym
)->versioned_name
, name
))
1391 as_bad (_("multiple versions [`%s'|`%s'] for symbol `%s'"),
1392 name
, symbol_get_obj (sym
)->versioned_name
,
1394 ignore_rest_of_line ();
1398 (void) restore_line_pointer (c
);
1401 demand_empty_rest_of_line ();
1404 /* This handles the .vtable_inherit pseudo-op, which is used to indicate
1405 to the linker the hierarchy in which a particular table resides. The
1406 syntax is ".vtable_inherit CHILDNAME, PARENTNAME". */
1409 obj_elf_vtable_inherit (int ignore ATTRIBUTE_UNUSED
)
1411 char *cname
, *pname
;
1412 symbolS
*csym
, *psym
;
1415 if (*input_line_pointer
== '#')
1416 ++input_line_pointer
;
1418 c
= get_symbol_name (& cname
);
1419 csym
= symbol_find (cname
);
1421 /* GCFIXME: should check that we don't have two .vtable_inherits for
1422 the same child symbol. Also, we can currently only do this if the
1423 child symbol is already exists and is placed in a fragment. */
1425 if (csym
== NULL
|| symbol_get_frag (csym
) == NULL
)
1427 as_bad (_("expected `%s' to have already been set for .vtable_inherit"),
1432 *input_line_pointer
= c
;
1434 SKIP_WHITESPACE_AFTER_NAME ();
1435 if (*input_line_pointer
!= ',')
1437 as_bad (_("expected comma after name in .vtable_inherit"));
1438 ignore_rest_of_line ();
1442 ++input_line_pointer
;
1445 if (*input_line_pointer
== '#')
1446 ++input_line_pointer
;
1448 if (input_line_pointer
[0] == '0'
1449 && (input_line_pointer
[1] == '\0'
1450 || ISSPACE (input_line_pointer
[1])))
1452 psym
= section_symbol (absolute_section
);
1453 ++input_line_pointer
;
1457 c
= get_symbol_name (& pname
);
1458 psym
= symbol_find_or_make (pname
);
1459 restore_line_pointer (c
);
1462 demand_empty_rest_of_line ();
1467 gas_assert (symbol_get_value_expression (csym
)->X_op
== O_constant
);
1468 return fix_new (symbol_get_frag (csym
),
1469 symbol_get_value_expression (csym
)->X_add_number
,
1470 0, psym
, 0, 0, BFD_RELOC_VTABLE_INHERIT
);
1473 /* This handles the .vtable_entry pseudo-op, which is used to indicate
1474 to the linker that a vtable slot was used. The syntax is
1475 ".vtable_entry tablename, offset". */
1478 obj_elf_vtable_entry (int ignore ATTRIBUTE_UNUSED
)
1483 if (*input_line_pointer
== '#')
1484 ++input_line_pointer
;
1486 sym
= get_sym_from_input_line_and_check ();
1487 if (*input_line_pointer
!= ',')
1489 as_bad (_("expected comma after name in .vtable_entry"));
1490 ignore_rest_of_line ();
1494 ++input_line_pointer
;
1495 if (*input_line_pointer
== '#')
1496 ++input_line_pointer
;
1498 offset
= get_absolute_expression ();
1500 demand_empty_rest_of_line ();
1502 return fix_new (frag_now
, frag_now_fix (), 0, sym
, offset
, 0,
1503 BFD_RELOC_VTABLE_ENTRY
);
1506 #define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0)
1509 skip_past_char (char ** str
, char c
)
1519 #define skip_past_comma(str) skip_past_char (str, ',')
1521 /* A list of attributes that have been explicitly set by the assembly code.
1522 VENDOR is the vendor id, BASE is the tag shifted right by the number
1523 of bits in MASK, and bit N of MASK is set if tag BASE+N has been set. */
1524 struct recorded_attribute_info
{
1525 struct recorded_attribute_info
*next
;
1530 static struct recorded_attribute_info
*recorded_attributes
;
1532 /* Record that we have seen an explicit specification of attribute TAG
1533 for vendor VENDOR. */
1536 record_attribute (int vendor
, unsigned int tag
)
1540 struct recorded_attribute_info
*rai
;
1542 base
= tag
/ (8 * sizeof (rai
->mask
));
1543 mask
= 1UL << (tag
% (8 * sizeof (rai
->mask
)));
1544 for (rai
= recorded_attributes
; rai
; rai
= rai
->next
)
1545 if (rai
->vendor
== vendor
&& rai
->base
== base
)
1551 rai
= XNEW (struct recorded_attribute_info
);
1552 rai
->next
= recorded_attributes
;
1553 rai
->vendor
= vendor
;
1556 recorded_attributes
= rai
;
1559 /* Return true if we have seen an explicit specification of attribute TAG
1560 for vendor VENDOR. */
1563 obj_elf_seen_attribute (int vendor
, unsigned int tag
)
1567 struct recorded_attribute_info
*rai
;
1569 base
= tag
/ (8 * sizeof (rai
->mask
));
1570 mask
= 1UL << (tag
% (8 * sizeof (rai
->mask
)));
1571 for (rai
= recorded_attributes
; rai
; rai
= rai
->next
)
1572 if (rai
->vendor
== vendor
&& rai
->base
== base
)
1573 return (rai
->mask
& mask
) != 0;
1577 /* Parse an attribute directive for VENDOR.
1578 Returns the attribute number read, or zero on error. */
1581 obj_elf_vendor_attribute (int vendor
)
1589 /* Read the first number or name. */
1590 skip_whitespace (input_line_pointer
);
1591 s
= input_line_pointer
;
1592 if (ISDIGIT (*input_line_pointer
))
1595 if (exp
.X_op
!= O_constant
)
1597 tag
= exp
.X_add_number
;
1603 /* A name may contain '_', but no other punctuation. */
1604 for (; ISALNUM (*input_line_pointer
) || *input_line_pointer
== '_';
1605 ++input_line_pointer
)
1610 name
= (char *) alloca (i
+ 1);
1611 memcpy (name
, s
, i
);
1614 #ifndef CONVERT_SYMBOLIC_ATTRIBUTE
1615 #define CONVERT_SYMBOLIC_ATTRIBUTE(a) -1
1618 tag
= CONVERT_SYMBOLIC_ATTRIBUTE (name
);
1621 as_bad (_("Attribute name not recognised: %s"), name
);
1622 ignore_rest_of_line ();
1627 type
= _bfd_elf_obj_attrs_arg_type (stdoutput
, vendor
, tag
);
1629 if (skip_past_comma (&input_line_pointer
) == -1)
1634 if (exp
.X_op
!= O_constant
)
1636 as_bad (_("expected numeric constant"));
1637 ignore_rest_of_line ();
1640 i
= exp
.X_add_number
;
1643 && skip_past_comma (&input_line_pointer
) == -1)
1645 as_bad (_("expected comma"));
1646 ignore_rest_of_line ();
1653 skip_whitespace (input_line_pointer
);
1654 if (*input_line_pointer
!= '"')
1656 s
= demand_copy_C_string (&len
);
1659 record_attribute (vendor
, tag
);
1663 bfd_elf_add_obj_attr_int_string (stdoutput
, vendor
, tag
, i
, s
);
1666 bfd_elf_add_obj_attr_string (stdoutput
, vendor
, tag
, s
);
1669 bfd_elf_add_obj_attr_int (stdoutput
, vendor
, tag
, i
);
1675 demand_empty_rest_of_line ();
1678 as_bad (_("bad string constant"));
1679 ignore_rest_of_line ();
1682 as_bad (_("expected <tag> , <value>"));
1683 ignore_rest_of_line ();
1687 /* Parse a .gnu_attribute directive. */
1690 obj_elf_gnu_attribute (int ignored ATTRIBUTE_UNUSED
)
1692 obj_elf_vendor_attribute (OBJ_ATTR_GNU
);
1696 elf_obj_read_begin_hook (void)
1698 #ifdef NEED_ECOFF_DEBUG
1699 if (ECOFF_DEBUGGING
)
1700 ecoff_read_begin_hook ();
1705 elf_obj_symbol_new_hook (symbolS
*symbolP
)
1707 struct elf_obj_sy
*sy_obj
;
1709 sy_obj
= symbol_get_obj (symbolP
);
1710 sy_obj
->size
= NULL
;
1711 sy_obj
->versioned_name
= NULL
;
1713 #ifdef NEED_ECOFF_DEBUG
1714 if (ECOFF_DEBUGGING
)
1715 ecoff_symbol_new_hook (symbolP
);
1719 /* When setting one symbol equal to another, by default we probably
1720 want them to have the same "size", whatever it means in the current
1724 elf_copy_symbol_attributes (symbolS
*dest
, symbolS
*src
)
1726 struct elf_obj_sy
*srcelf
= symbol_get_obj (src
);
1727 struct elf_obj_sy
*destelf
= symbol_get_obj (dest
);
1730 if (destelf
->size
== NULL
)
1731 destelf
->size
= (expressionS
*) xmalloc (sizeof (expressionS
));
1732 *destelf
->size
= *srcelf
->size
;
1736 if (destelf
->size
!= NULL
)
1737 free (destelf
->size
);
1738 destelf
->size
= NULL
;
1740 S_SET_SIZE (dest
, S_GET_SIZE (src
));
1741 /* Don't copy visibility. */
1742 S_SET_OTHER (dest
, (ELF_ST_VISIBILITY (S_GET_OTHER (dest
))
1743 | (S_GET_OTHER (src
) & ~ELF_ST_VISIBILITY (-1))));
1747 obj_elf_version (int ignore ATTRIBUTE_UNUSED
)
1752 asection
*seg
= now_seg
;
1753 subsegT subseg
= now_subseg
;
1754 Elf_Internal_Note i_note
;
1755 Elf_External_Note e_note
;
1756 asection
*note_secp
= NULL
;
1759 if (*input_line_pointer
== '\"')
1763 ++input_line_pointer
; /* -> 1st char of string. */
1764 name
= input_line_pointer
;
1766 while (is_a_char (c
= next_char_of_string ()))
1768 c
= *input_line_pointer
;
1769 *input_line_pointer
= '\0';
1770 *(input_line_pointer
- 1) = '\0';
1771 *input_line_pointer
= c
;
1773 /* Create the .note section. */
1774 note_secp
= subseg_new (".note", 0);
1775 bfd_set_section_flags (stdoutput
,
1777 SEC_HAS_CONTENTS
| SEC_READONLY
);
1779 /* Process the version string. */
1780 len
= strlen (name
) + 1;
1782 /* PR 3456: Although the name field is padded out to an 4-byte
1783 boundary, the namesz field should not be adjusted. */
1784 i_note
.namesz
= len
;
1785 i_note
.descsz
= 0; /* No description. */
1786 i_note
.type
= NT_VERSION
;
1787 p
= frag_more (sizeof (e_note
.namesz
));
1788 md_number_to_chars (p
, i_note
.namesz
, sizeof (e_note
.namesz
));
1789 p
= frag_more (sizeof (e_note
.descsz
));
1790 md_number_to_chars (p
, i_note
.descsz
, sizeof (e_note
.descsz
));
1791 p
= frag_more (sizeof (e_note
.type
));
1792 md_number_to_chars (p
, i_note
.type
, sizeof (e_note
.type
));
1793 p
= frag_more (len
);
1794 memcpy (p
, name
, len
);
1796 frag_align (2, 0, 0);
1798 subseg_set (seg
, subseg
);
1801 as_bad (_("expected quoted string"));
1803 demand_empty_rest_of_line ();
1807 obj_elf_size (int ignore ATTRIBUTE_UNUSED
)
1810 char c
= get_symbol_name (&name
);
1815 p
= input_line_pointer
;
1817 SKIP_WHITESPACE_AFTER_NAME ();
1818 if (*input_line_pointer
!= ',')
1821 as_bad (_("expected comma after name `%s' in .size directive"), name
);
1823 ignore_rest_of_line ();
1826 input_line_pointer
++;
1828 if (exp
.X_op
== O_absent
)
1830 as_bad (_("missing expression in .size directive"));
1831 exp
.X_op
= O_constant
;
1832 exp
.X_add_number
= 0;
1835 sym
= symbol_find_or_make (name
);
1837 if (exp
.X_op
== O_constant
)
1839 S_SET_SIZE (sym
, exp
.X_add_number
);
1840 if (symbol_get_obj (sym
)->size
)
1842 xfree (symbol_get_obj (sym
)->size
);
1843 symbol_get_obj (sym
)->size
= NULL
;
1848 symbol_get_obj (sym
)->size
=
1849 (expressionS
*) xmalloc (sizeof (expressionS
));
1850 *symbol_get_obj (sym
)->size
= exp
;
1852 demand_empty_rest_of_line ();
1855 /* Handle the ELF .type pseudo-op. This sets the type of a symbol.
1856 There are six syntaxes:
1858 The first (used on Solaris) is
1860 The second (used on UnixWare) is
1862 The third (reportedly to be used on Irix 6.0) is
1864 The fourth (used on NetBSD/Arm and Linux/ARM) is
1866 The fifth (used on SVR4/860) is
1867 .type SYM,"function"
1868 The sixth (emitted by recent SunPRO under Solaris) is
1870 where the integer is the STT_* value.
1874 obj_elf_type_name (char *cp
)
1878 p
= input_line_pointer
;
1879 if (*input_line_pointer
>= '0'
1880 && *input_line_pointer
<= '9')
1882 while (*input_line_pointer
>= '0'
1883 && *input_line_pointer
<= '9')
1884 ++input_line_pointer
;
1885 *cp
= *input_line_pointer
;
1886 *input_line_pointer
= '\0';
1889 *cp
= get_symbol_name (&p
);
1895 obj_elf_type (int ignore ATTRIBUTE_UNUSED
)
1899 const char *type_name
;
1901 elf_symbol_type
*elfsym
;
1903 sym
= get_sym_from_input_line_and_check ();
1904 c
= *input_line_pointer
;
1905 elfsym
= (elf_symbol_type
*) symbol_get_bfdsym (sym
);
1907 if (*input_line_pointer
== ',')
1908 ++input_line_pointer
;
1911 if ( *input_line_pointer
== '#'
1912 || *input_line_pointer
== '@'
1913 || *input_line_pointer
== '"'
1914 || *input_line_pointer
== '%')
1915 ++input_line_pointer
;
1917 type_name
= obj_elf_type_name (& c
);
1920 if (strcmp (type_name
, "function") == 0
1921 || strcmp (type_name
, "2") == 0
1922 || strcmp (type_name
, "STT_FUNC") == 0)
1923 type
= BSF_FUNCTION
;
1924 else if (strcmp (type_name
, "object") == 0
1925 || strcmp (type_name
, "1") == 0
1926 || strcmp (type_name
, "STT_OBJECT") == 0)
1928 else if (strcmp (type_name
, "tls_object") == 0
1929 || strcmp (type_name
, "6") == 0
1930 || strcmp (type_name
, "STT_TLS") == 0)
1931 type
= BSF_OBJECT
| BSF_THREAD_LOCAL
;
1932 else if (strcmp (type_name
, "notype") == 0
1933 || strcmp (type_name
, "0") == 0
1934 || strcmp (type_name
, "STT_NOTYPE") == 0)
1936 else if (strcmp (type_name
, "common") == 0
1937 || strcmp (type_name
, "5") == 0
1938 || strcmp (type_name
, "STT_COMMON") == 0)
1942 if (! S_IS_COMMON (sym
))
1944 if (S_IS_VOLATILE (sym
))
1946 sym
= symbol_clone (sym
, 1);
1947 S_SET_SEGMENT (sym
, bfd_com_section_ptr
);
1948 S_SET_VALUE (sym
, 0);
1949 S_SET_EXTERNAL (sym
);
1950 symbol_set_frag (sym
, &zero_address_frag
);
1951 S_CLEAR_VOLATILE (sym
);
1953 else if (S_IS_DEFINED (sym
) || symbol_equated_p (sym
))
1954 as_bad (_("symbol '%s' is already defined"), S_GET_NAME (sym
));
1957 /* FIXME: Is it safe to just change the section ? */
1958 S_SET_SEGMENT (sym
, bfd_com_section_ptr
);
1959 S_SET_VALUE (sym
, 0);
1960 S_SET_EXTERNAL (sym
);
1964 else if (strcmp (type_name
, "gnu_indirect_function") == 0
1965 || strcmp (type_name
, "10") == 0
1966 || strcmp (type_name
, "STT_GNU_IFUNC") == 0)
1968 const struct elf_backend_data
*bed
;
1970 bed
= get_elf_backend_data (stdoutput
);
1971 if (!(bed
->elf_osabi
== ELFOSABI_GNU
1972 || bed
->elf_osabi
== ELFOSABI_FREEBSD
1973 /* GNU is still using the default value 0. */
1974 || bed
->elf_osabi
== ELFOSABI_NONE
))
1975 as_bad (_("symbol type \"%s\" is supported only by GNU and FreeBSD targets"),
1977 type
= BSF_FUNCTION
| BSF_GNU_INDIRECT_FUNCTION
;
1979 else if (strcmp (type_name
, "gnu_unique_object") == 0)
1981 struct elf_backend_data
*bed
;
1983 bed
= (struct elf_backend_data
*) get_elf_backend_data (stdoutput
);
1984 if (!(bed
->elf_osabi
== ELFOSABI_GNU
1985 /* GNU is still using the default value 0. */
1986 || bed
->elf_osabi
== ELFOSABI_NONE
))
1987 as_bad (_("symbol type \"%s\" is supported only by GNU targets"),
1989 type
= BSF_OBJECT
| BSF_GNU_UNIQUE
;
1990 /* PR 10549: Always set OSABI field to GNU for objects containing unique symbols. */
1991 bed
->elf_osabi
= ELFOSABI_GNU
;
1993 #ifdef md_elf_symbol_type
1994 else if ((type
= md_elf_symbol_type (type_name
, sym
, elfsym
)) != -1)
1998 as_bad (_("unrecognized symbol type \"%s\""), type_name
);
2000 *input_line_pointer
= c
;
2002 if (*input_line_pointer
== '"')
2003 ++input_line_pointer
;
2005 elfsym
->symbol
.flags
|= type
;
2007 demand_empty_rest_of_line ();
2011 obj_elf_ident (int ignore ATTRIBUTE_UNUSED
)
2013 static segT comment_section
;
2014 segT old_section
= now_seg
;
2015 int old_subsection
= now_subseg
;
2017 #ifdef md_flush_pending_output
2018 md_flush_pending_output ();
2021 if (!comment_section
)
2024 comment_section
= subseg_new (".comment", 0);
2025 bfd_set_section_flags (stdoutput
, comment_section
,
2026 SEC_READONLY
| SEC_HAS_CONTENTS
2027 | SEC_MERGE
| SEC_STRINGS
);
2028 comment_section
->entsize
= 1;
2029 #ifdef md_elf_section_change_hook
2030 md_elf_section_change_hook ();
2036 subseg_set (comment_section
, 0);
2038 subseg_set (old_section
, old_subsection
);
2041 #ifdef INIT_STAB_SECTION
2043 /* The first entry in a .stabs section is special. */
2046 obj_elf_init_stab_section (segT seg
)
2051 unsigned int stroff
;
2053 /* Force the section to align to a longword boundary. Without this,
2054 UnixWare ar crashes. */
2055 bfd_set_section_alignment (stdoutput
, seg
, 2);
2057 /* Make space for this first symbol. */
2061 file
= as_where (NULL
);
2062 stabstr_name
= (char *) xmalloc (strlen (segment_name (seg
)) + 4);
2063 strcpy (stabstr_name
, segment_name (seg
));
2064 strcat (stabstr_name
, "str");
2065 stroff
= get_stab_string_offset (file
, stabstr_name
);
2066 know (stroff
== 1 || (stroff
== 0 && file
[0] == '\0'));
2067 md_number_to_chars (p
, stroff
, 4);
2068 seg_info (seg
)->stabu
.p
= p
;
2073 /* Fill in the counts in the first entry in a .stabs section. */
2076 adjust_stab_sections (bfd
*abfd
, asection
*sec
, void *xxx ATTRIBUTE_UNUSED
)
2083 if (strncmp (".stab", sec
->name
, 5))
2085 if (!strcmp ("str", sec
->name
+ strlen (sec
->name
) - 3))
2088 name
= (char *) alloca (strlen (sec
->name
) + 4);
2089 strcpy (name
, sec
->name
);
2090 strcat (name
, "str");
2091 strsec
= bfd_get_section_by_name (abfd
, name
);
2093 strsz
= bfd_section_size (abfd
, strsec
);
2096 nsyms
= bfd_section_size (abfd
, sec
) / 12 - 1;
2098 p
= seg_info (sec
)->stabu
.p
;
2099 gas_assert (p
!= 0);
2101 bfd_h_put_16 (abfd
, nsyms
, p
+ 6);
2102 bfd_h_put_32 (abfd
, strsz
, p
+ 8);
2105 #ifdef NEED_ECOFF_DEBUG
2107 /* This function is called by the ECOFF code. It is supposed to
2108 record the external symbol information so that the backend can
2109 write it out correctly. The ELF backend doesn't actually handle
2110 this at the moment, so we do it ourselves. We save the information
2113 #ifdef OBJ_MAYBE_ELF
2117 elf_ecoff_set_ext (symbolS
*sym
, struct ecoff_extr
*ext
)
2119 symbol_get_bfdsym (sym
)->udata
.p
= ext
;
2122 /* This function is called by bfd_ecoff_debug_externals. It is
2123 supposed to *EXT to the external symbol information, and return
2124 whether the symbol should be used at all. */
2127 elf_get_extr (asymbol
*sym
, EXTR
*ext
)
2129 if (sym
->udata
.p
== NULL
)
2131 *ext
= *(EXTR
*) sym
->udata
.p
;
2135 /* This function is called by bfd_ecoff_debug_externals. It has
2136 nothing to do for ELF. */
2139 elf_set_index (asymbol
*sym ATTRIBUTE_UNUSED
,
2140 bfd_size_type indx ATTRIBUTE_UNUSED
)
2144 #endif /* NEED_ECOFF_DEBUG */
2147 elf_frob_symbol (symbolS
*symp
, int *puntp
)
2149 struct elf_obj_sy
*sy_obj
;
2152 #ifdef NEED_ECOFF_DEBUG
2153 if (ECOFF_DEBUGGING
)
2154 ecoff_frob_symbol (symp
);
2157 sy_obj
= symbol_get_obj (symp
);
2159 size
= sy_obj
->size
;
2162 if (resolve_expression (size
)
2163 && size
->X_op
== O_constant
)
2164 S_SET_SIZE (symp
, size
->X_add_number
);
2167 if (flag_size_check
== size_check_error
)
2168 as_bad (_(".size expression for %s "
2169 "does not evaluate to a constant"), S_GET_NAME (symp
));
2171 as_warn (_(".size expression for %s "
2172 "does not evaluate to a constant"), S_GET_NAME (symp
));
2174 free (sy_obj
->size
);
2175 sy_obj
->size
= NULL
;
2178 if (sy_obj
->versioned_name
!= NULL
)
2182 p
= strchr (sy_obj
->versioned_name
, ELF_VER_CHR
);
2184 /* We will have already reported an error about a missing version. */
2187 /* This symbol was given a new name with the .symver directive.
2189 If this is an external reference, just rename the symbol to
2190 include the version string. This will make the relocs be
2191 against the correct versioned symbol.
2193 If this is a definition, add an alias. FIXME: Using an alias
2194 will permit the debugging information to refer to the right
2195 symbol. However, it's not clear whether it is the best
2198 else if (! S_IS_DEFINED (symp
))
2200 /* Verify that the name isn't using the @@ syntax--this is
2201 reserved for definitions of the default version to link
2203 if (p
[1] == ELF_VER_CHR
)
2205 as_bad (_("invalid attempt to declare external version name"
2206 " as default in symbol `%s'"),
2207 sy_obj
->versioned_name
);
2210 S_SET_NAME (symp
, sy_obj
->versioned_name
);
2214 if (p
[1] == ELF_VER_CHR
&& p
[2] == ELF_VER_CHR
)
2218 /* The @@@ syntax is a special case. It renames the
2219 symbol name to versioned_name with one `@' removed. */
2220 l
= strlen (&p
[3]) + 1;
2221 memmove (&p
[2], &p
[3], l
);
2222 S_SET_NAME (symp
, sy_obj
->versioned_name
);
2228 /* FIXME: Creating a new symbol here is risky. We're
2229 in the final loop over the symbol table. We can
2230 get away with it only because the symbol goes to
2231 the end of the list, where the loop will still see
2232 it. It would probably be better to do this in
2233 obj_frob_file_before_adjust. */
2235 symp2
= symbol_find_or_make (sy_obj
->versioned_name
);
2237 /* Now we act as though we saw symp2 = sym. */
2239 S_SET_SEGMENT (symp2
, S_GET_SEGMENT (symp
));
2241 /* Subtracting out the frag address here is a hack
2242 because we are in the middle of the final loop. */
2245 - symbol_get_frag (symp
)->fr_address
));
2247 symbol_set_frag (symp2
, symbol_get_frag (symp
));
2249 /* This will copy over the size information. */
2250 copy_symbol_attributes (symp2
, symp
);
2252 S_SET_OTHER (symp2
, S_GET_OTHER (symp
));
2254 if (S_IS_WEAK (symp
))
2257 if (S_IS_EXTERNAL (symp
))
2258 S_SET_EXTERNAL (symp2
);
2263 /* Double check weak symbols. */
2264 if (S_IS_WEAK (symp
))
2266 if (S_IS_COMMON (symp
))
2267 as_bad (_("symbol `%s' can not be both weak and common"),
2272 /* The Irix 5 and 6 assemblers set the type of any common symbol and
2273 any undefined non-function symbol to STT_OBJECT. We try to be
2274 compatible, since newer Irix 5 and 6 linkers care. However, we
2275 only set undefined symbols to be STT_OBJECT if we are on Irix,
2276 because that is the only time gcc will generate the necessary
2277 .global directives to mark functions. */
2279 if (S_IS_COMMON (symp
))
2280 symbol_get_bfdsym (symp
)->flags
|= BSF_OBJECT
;
2282 if (strstr (TARGET_OS
, "irix") != NULL
2283 && ! S_IS_DEFINED (symp
)
2284 && (symbol_get_bfdsym (symp
)->flags
& BSF_FUNCTION
) == 0)
2285 symbol_get_bfdsym (symp
)->flags
|= BSF_OBJECT
;
2291 asection
**head
; /* Section lists. */
2292 unsigned int *elt_count
; /* Number of sections in each list. */
2293 unsigned int num_group
; /* Number of lists. */
2294 struct hash_control
*indexes
; /* Maps group name to index in head array. */
2297 /* Called via bfd_map_over_sections. If SEC is a member of a group,
2298 add it to a list of sections belonging to the group. INF is a
2299 pointer to a struct group_list, which is where we store the head of
2303 build_group_lists (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
, void *inf
)
2305 struct group_list
*list
= (struct group_list
*) inf
;
2306 const char *group_name
= elf_group_name (sec
);
2308 unsigned int *elem_idx
;
2309 unsigned int *idx_ptr
;
2311 if (group_name
== NULL
)
2314 /* If this group already has a list, add the section to the head of
2316 elem_idx
= (unsigned int *) hash_find (list
->indexes
, group_name
);
2317 if (elem_idx
!= NULL
)
2319 elf_next_in_group (sec
) = list
->head
[*elem_idx
];
2320 list
->head
[*elem_idx
] = sec
;
2321 list
->elt_count
[*elem_idx
] += 1;
2325 /* New group. Make the arrays bigger in chunks to minimize calls to
2327 i
= list
->num_group
;
2330 unsigned int newsize
= i
+ 128;
2331 list
->head
= (asection
**) xrealloc (list
->head
,
2332 newsize
* sizeof (*list
->head
));
2333 list
->elt_count
= (unsigned int *)
2334 xrealloc (list
->elt_count
, newsize
* sizeof (*list
->elt_count
));
2336 list
->head
[i
] = sec
;
2337 list
->elt_count
[i
] = 1;
2338 list
->num_group
+= 1;
2340 /* Add index to hash. */
2341 idx_ptr
= (unsigned int *) xmalloc (sizeof (unsigned int));
2343 hash_insert (list
->indexes
, group_name
, idx_ptr
);
2346 static void free_section_idx (const char *key ATTRIBUTE_UNUSED
, void *val
)
2348 free ((unsigned int *) val
);
2352 elf_adjust_symtab (void)
2354 struct group_list list
;
2357 /* Go find section groups. */
2360 list
.elt_count
= NULL
;
2361 list
.indexes
= hash_new ();
2362 bfd_map_over_sections (stdoutput
, build_group_lists
, &list
);
2364 /* Make the SHT_GROUP sections that describe each section group. We
2365 can't set up the section contents here yet, because elf section
2366 indices have yet to be calculated. elf.c:set_group_contents does
2367 the rest of the work. */
2368 for (i
= 0; i
< list
.num_group
; i
++)
2370 const char *group_name
= elf_group_name (list
.head
[i
]);
2371 const char *sec_name
;
2377 flags
= SEC_READONLY
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_GROUP
;
2378 for (s
= list
.head
[i
]; s
!= NULL
; s
= elf_next_in_group (s
))
2379 if ((s
->flags
^ flags
) & SEC_LINK_ONCE
)
2381 flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
2382 if (s
!= list
.head
[i
])
2384 as_warn (_("assuming all members of group `%s' are COMDAT"),
2390 sec_name
= ".group";
2391 s
= subseg_force_new (sec_name
, 0);
2393 || !bfd_set_section_flags (stdoutput
, s
, flags
)
2394 || !bfd_set_section_alignment (stdoutput
, s
, 2))
2396 as_fatal (_("can't create group: %s"),
2397 bfd_errmsg (bfd_get_error ()));
2399 elf_section_type (s
) = SHT_GROUP
;
2401 /* Pass a pointer to the first section in this group. */
2402 elf_next_in_group (s
) = list
.head
[i
];
2403 /* Make sure that the signature symbol for the group has the
2404 name of the group. */
2405 sy
= symbol_find_exact (group_name
);
2407 || (sy
!= symbol_lastP
2408 && (sy
->sy_next
== NULL
2409 || sy
->sy_next
->sy_previous
!= sy
)))
2411 /* Create the symbol now. */
2412 sy
= symbol_new (group_name
, now_seg
, (valueT
) 0, frag_now
);
2414 /* Before Solaris 11 build 154, Sun ld rejects local group
2415 signature symbols, so make them weak hidden instead. */
2416 symbol_get_bfdsym (sy
)->flags
|= BSF_WEAK
;
2417 S_SET_OTHER (sy
, STV_HIDDEN
);
2419 symbol_get_obj (sy
)->local
= 1;
2421 symbol_table_insert (sy
);
2423 elf_group_id (s
) = symbol_get_bfdsym (sy
);
2425 size
= 4 * (list
.elt_count
[i
] + 1);
2426 bfd_set_section_size (stdoutput
, s
, size
);
2427 s
->contents
= (unsigned char *) frag_more (size
);
2428 frag_now
->fr_fix
= frag_now_fix_octets ();
2429 frag_wane (frag_now
);
2433 hash_traverse (list
.indexes
, free_section_idx
);
2434 hash_die (list
.indexes
);
2438 elf_frob_file (void)
2440 bfd_map_over_sections (stdoutput
, adjust_stab_sections
, NULL
);
2442 #ifdef elf_tc_final_processing
2443 elf_tc_final_processing ();
2447 /* It removes any unneeded versioned symbols from the symbol table. */
2450 elf_frob_file_before_adjust (void)
2456 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
2457 if (!S_IS_DEFINED (symp
))
2459 if (symbol_get_obj (symp
)->versioned_name
)
2463 /* The @@@ syntax is a special case. If the symbol is
2464 not defined, 2 `@'s will be removed from the
2467 p
= strchr (symbol_get_obj (symp
)->versioned_name
,
2469 if (p
!= NULL
&& p
[1] == ELF_VER_CHR
&& p
[2] == ELF_VER_CHR
)
2471 size_t l
= strlen (&p
[3]) + 1;
2472 memmove (&p
[1], &p
[3], l
);
2474 if (symbol_used_p (symp
) == 0
2475 && symbol_used_in_reloc_p (symp
) == 0)
2476 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2479 /* If there was .weak foo, but foo was neither defined nor
2480 used anywhere, remove it. */
2482 else if (S_IS_WEAK (symp
)
2483 && symbol_used_p (symp
) == 0
2484 && symbol_used_in_reloc_p (symp
) == 0)
2485 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2490 /* It is required that we let write_relocs have the opportunity to
2491 optimize away fixups before output has begun, since it is possible
2492 to eliminate all fixups for a section and thus we never should
2493 have generated the relocation section. */
2496 elf_frob_file_after_relocs (void)
2498 #ifdef NEED_ECOFF_DEBUG
2499 if (ECOFF_DEBUGGING
)
2500 /* Generate the ECOFF debugging information. */
2502 const struct ecoff_debug_swap
*debug_swap
;
2503 struct ecoff_debug_info debug
;
2508 = get_elf_backend_data (stdoutput
)->elf_backend_ecoff_debug_swap
;
2509 know (debug_swap
!= NULL
);
2510 ecoff_build_debug (&debug
.symbolic_header
, &buf
, debug_swap
);
2512 /* Set up the pointers in debug. */
2513 #define SET(ptr, offset, type) \
2514 debug.ptr = (type) (buf + debug.symbolic_header.offset)
2516 SET (line
, cbLineOffset
, unsigned char *);
2517 SET (external_dnr
, cbDnOffset
, void *);
2518 SET (external_pdr
, cbPdOffset
, void *);
2519 SET (external_sym
, cbSymOffset
, void *);
2520 SET (external_opt
, cbOptOffset
, void *);
2521 SET (external_aux
, cbAuxOffset
, union aux_ext
*);
2522 SET (ss
, cbSsOffset
, char *);
2523 SET (external_fdr
, cbFdOffset
, void *);
2524 SET (external_rfd
, cbRfdOffset
, void *);
2525 /* ssext and external_ext are set up just below. */
2529 /* Set up the external symbols. */
2530 debug
.ssext
= debug
.ssext_end
= NULL
;
2531 debug
.external_ext
= debug
.external_ext_end
= NULL
;
2532 if (! bfd_ecoff_debug_externals (stdoutput
, &debug
, debug_swap
, TRUE
,
2533 elf_get_extr
, elf_set_index
))
2534 as_fatal (_("failed to set up debugging information: %s"),
2535 bfd_errmsg (bfd_get_error ()));
2537 sec
= bfd_get_section_by_name (stdoutput
, ".mdebug");
2538 gas_assert (sec
!= NULL
);
2540 know (!stdoutput
->output_has_begun
);
2542 /* We set the size of the section, call bfd_set_section_contents
2543 to force the ELF backend to allocate a file position, and then
2544 write out the data. FIXME: Is this really the best way to do
2546 bfd_set_section_size
2547 (stdoutput
, sec
, bfd_ecoff_debug_size (stdoutput
, &debug
, debug_swap
));
2549 /* Pass BUF to bfd_set_section_contents because this will
2550 eventually become a call to fwrite, and ISO C prohibits
2551 passing a NULL pointer to a stdio function even if the
2552 pointer will not be used. */
2553 if (! bfd_set_section_contents (stdoutput
, sec
, buf
, 0, 0))
2554 as_fatal (_("can't start writing .mdebug section: %s"),
2555 bfd_errmsg (bfd_get_error ()));
2557 know (stdoutput
->output_has_begun
);
2558 know (sec
->filepos
!= 0);
2560 if (! bfd_ecoff_write_debug (stdoutput
, &debug
, debug_swap
,
2562 as_fatal (_("could not write .mdebug section: %s"),
2563 bfd_errmsg (bfd_get_error ()));
2565 #endif /* NEED_ECOFF_DEBUG */
2570 /* Heavily plagiarized from obj_elf_version. The idea is to emit the
2571 SCO specific identifier in the .notes section to satisfy the SCO
2574 This looks more complicated than it really is. As opposed to the
2575 "obvious" solution, this should handle the cross dev cases
2576 correctly. (i.e, hosting on a 64 bit big endian processor, but
2577 generating SCO Elf code) Efficiency isn't a concern, as there
2578 should be exactly one of these sections per object module.
2580 SCO OpenServer 5 identifies it's ELF modules with a standard ELF
2583 int_32 namesz = 4 ; Name size
2584 int_32 descsz = 12 ; Descriptive information
2586 char name[4] = "SCO" ; Originator name ALWAYS SCO + NULL
2587 int_32 version = (major ver # << 16) | version of tools ;
2588 int_32 source = (tool_id << 16 ) | 1 ;
2589 int_32 info = 0 ; These are set by the SCO tools, but we
2590 don't know enough about the source
2591 environment to set them. SCO ld currently
2592 ignores them, and recommends we set them
2595 #define SCO_MAJOR_VERSION 0x1
2596 #define SCO_MINOR_VERSION 0x1
2606 asection
*seg
= now_seg
;
2607 subsegT subseg
= now_subseg
;
2608 Elf_Internal_Note i_note
;
2609 Elf_External_Note e_note
;
2610 asection
*note_secp
= NULL
;
2613 /* create the .note section */
2615 note_secp
= subseg_new (".note", 0);
2616 bfd_set_section_flags (stdoutput
,
2618 SEC_HAS_CONTENTS
| SEC_READONLY
);
2620 /* process the version string */
2623 i_note
.descsz
= 12; /* 12 descriptive bytes */
2624 i_note
.type
= NT_VERSION
; /* Contains a version string */
2626 p
= frag_more (sizeof (i_note
.namesz
));
2627 md_number_to_chars (p
, i_note
.namesz
, 4);
2629 p
= frag_more (sizeof (i_note
.descsz
));
2630 md_number_to_chars (p
, i_note
.descsz
, 4);
2632 p
= frag_more (sizeof (i_note
.type
));
2633 md_number_to_chars (p
, i_note
.type
, 4);
2638 /* Note: this is the version number of the ELF we're representing */
2640 md_number_to_chars (p
, (SCO_MAJOR_VERSION
<< 16) | (SCO_MINOR_VERSION
), 4);
2642 /* Here, we pick a magic number for ourselves (yes, I "registered"
2643 it with SCO. The bottom bit shows that we are compat with the
2646 md_number_to_chars (p
, 0x4c520000 | 0x0001, 4);
2648 /* If we knew (or cared) what the source language options were, we'd
2649 fill them in here. SCO has given us permission to ignore these
2650 and just set them to zero. */
2652 md_number_to_chars (p
, 0x0000, 4);
2654 frag_align (2, 0, 0);
2656 /* We probably can't restore the current segment, for there likely
2659 subseg_set (seg
, subseg
);
2663 #endif /* SCO_ELF */
2666 elf_generate_asm_lineno (void)
2668 #ifdef NEED_ECOFF_DEBUG
2669 if (ECOFF_DEBUGGING
)
2670 ecoff_generate_asm_lineno ();
2675 elf_process_stab (segT sec ATTRIBUTE_UNUSED
,
2676 int what ATTRIBUTE_UNUSED
,
2677 const char *string ATTRIBUTE_UNUSED
,
2678 int type ATTRIBUTE_UNUSED
,
2679 int other ATTRIBUTE_UNUSED
,
2680 int desc ATTRIBUTE_UNUSED
)
2682 #ifdef NEED_ECOFF_DEBUG
2683 if (ECOFF_DEBUGGING
)
2684 ecoff_stab (sec
, what
, string
, type
, other
, desc
);
2689 elf_separate_stab_sections (void)
2691 #ifdef NEED_ECOFF_DEBUG
2692 return (!ECOFF_DEBUGGING
);
2699 elf_init_stab_section (segT seg
)
2701 #ifdef NEED_ECOFF_DEBUG
2702 if (!ECOFF_DEBUGGING
)
2704 obj_elf_init_stab_section (seg
);
2707 const struct format_ops elf_format_ops
=
2709 bfd_target_elf_flavour
,
2710 0, /* dfl_leading_underscore */
2711 1, /* emit_section_symbols */
2716 elf_frob_file_before_adjust
,
2717 0, /* obj_frob_file_before_fix */
2718 elf_frob_file_after_relocs
,
2719 elf_s_get_size
, elf_s_set_size
,
2720 elf_s_get_align
, elf_s_set_align
,
2727 elf_copy_symbol_attributes
,
2728 elf_generate_asm_lineno
,
2730 elf_separate_stab_sections
,
2731 elf_init_stab_section
,
2732 elf_sec_sym_ok_for_reloc
,
2734 #ifdef NEED_ECOFF_DEBUG
2737 0, /* ecoff_set_ext */
2739 elf_obj_read_begin_hook
,
2740 elf_obj_symbol_new_hook
,