1 /* Generic symbol-table support for the BFD library.
2 Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program 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 of the License, or
10 (at your option) any later version.
12 This program 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 this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 BFD tries to maintain as much symbol information as it can when
26 it moves information from file to file. BFD passes information
27 to applications though the <<asymbol>> structure. When the
28 application requests the symbol table, BFD reads the table in
29 the native form and translates parts of it into the internal
30 format. To maintain more than the information passed to
31 applications, some targets keep some information ``behind the
32 scenes'' in a structure only the particular back end knows
33 about. For example, the coff back end keeps the original
34 symbol table structure as well as the canonical structure when
35 a BFD is read in. On output, the coff back end can reconstruct
36 the output symbol table so that no information is lost, even
37 information unique to coff which BFD doesn't know or
38 understand. If a coff symbol table were read, but were written
39 through an a.out back end, all the coff specific information
40 would be lost. The symbol table of a BFD
41 is not necessarily read in until a canonicalize request is
42 made. Then the BFD back end fills in a table provided by the
43 application with pointers to the canonical information. To
44 output symbols, the application provides BFD with a table of
45 pointers to pointers to <<asymbol>>s. This allows applications
46 like the linker to output a symbol as it was read, since the ``behind
47 the scenes'' information will be still available.
53 @* symbol handling functions::
57 Reading Symbols, Writing Symbols, Symbols, Symbols
61 There are two stages to reading a symbol table from a BFD:
62 allocating storage, and the actual reading process. This is an
63 excerpt from an application which reads the symbol table:
65 | long storage_needed;
66 | asymbol **symbol_table;
67 | long number_of_symbols;
70 | storage_needed = bfd_get_symtab_upper_bound (abfd);
72 | if (storage_needed < 0)
75 | if (storage_needed == 0) {
78 | symbol_table = (asymbol **) xmalloc (storage_needed);
81 | bfd_canonicalize_symtab (abfd, symbol_table);
83 | if (number_of_symbols < 0)
86 | for (i = 0; i < number_of_symbols; i++) {
87 | process_symbol (symbol_table[i]);
90 All storage for the symbols themselves is in an obstack
91 connected to the BFD; it is freed when the BFD is closed.
95 Writing Symbols, Mini Symbols, Reading Symbols, Symbols
99 Writing of a symbol table is automatic when a BFD open for
100 writing is closed. The application attaches a vector of
101 pointers to pointers to symbols to the BFD being written, and
102 fills in the symbol count. The close and cleanup code reads
103 through the table provided and performs all the necessary
104 operations. The BFD output code must always be provided with an
105 ``owned'' symbol: one which has come from another BFD, or one
106 which has been created using <<bfd_make_empty_symbol>>. Here is an
107 example showing the creation of a symbol table with only one element:
116 | abfd = bfd_openw("foo","a.out-sunos-big");
117 | bfd_set_format(abfd, bfd_object);
118 | new = bfd_make_empty_symbol(abfd);
119 | new->name = "dummy_symbol";
120 | new->section = bfd_make_section_old_way(abfd, ".text");
121 | new->flags = BSF_GLOBAL;
122 | new->value = 0x12345;
125 | ptrs[1] = (asymbol *)0;
127 | bfd_set_symtab(abfd, ptrs, 1);
133 | 00012345 A dummy_symbol
135 Many formats cannot represent arbitary symbol information; for
136 instance, the <<a.out>> object format does not allow an
137 arbitary number of sections. A symbol pointing to a section
138 which is not one of <<.text>>, <<.data>> or <<.bss>> cannot
142 Mini Symbols, typedef asymbol, Writing Symbols, Symbols
146 Mini symbols provide read-only access to the symbol table.
147 They use less memory space, but require more time to access.
148 They can be useful for tools like nm or objdump, which may
149 have to handle symbol tables of extremely large executables.
151 The <<bfd_read_minisymbols>> function will read the symbols
152 into memory in an internal form. It will return a <<void *>>
153 pointer to a block of memory, a symbol count, and the size of
154 each symbol. The pointer is allocated using <<malloc>>, and
155 should be freed by the caller when it is no longer needed.
157 The function <<bfd_minisymbol_to_symbol>> will take a pointer
158 to a minisymbol, and a pointer to a structure returned by
159 <<bfd_make_empty_symbol>>, and return a <<asymbol>> structure.
160 The return value may or may not be the same as the value from
161 <<bfd_make_empty_symbol>> which was passed in.
170 typedef asymbol, symbol handling functions, Mini Symbols, Symbols
177 An <<asymbol>> has the form:
185 .typedef struct symbol_cache_entry
187 . {* A pointer to the BFD which owns the symbol. This information
188 . is necessary so that a back end can work out what additional
189 . information (invisible to the application writer) is carried
192 . This field is *almost* redundant, since you can use section->owner
193 . instead, except that some symbols point to the global sections
194 . bfd_{abs,com,und}_section. This could be fixed by making
195 . these globals be per-bfd (or per-target-flavor). FIXME. *}
197 . struct _bfd *the_bfd; {* Use bfd_asymbol_bfd(sym) to access this field. *}
199 . {* The text of the symbol. The name is left alone, and not copied; the
200 . application may not alter it. *}
203 . {* The value of the symbol. This really should be a union of a
204 . numeric value with a pointer, since some flags indicate that
205 . a pointer to another symbol is stored here. *}
208 . {* Attributes of a symbol: *}
210 .#define BSF_NO_FLAGS 0x00
212 . {* The symbol has local scope; <<static>> in <<C>>. The value
213 . is the offset into the section of the data. *}
214 .#define BSF_LOCAL 0x01
216 . {* The symbol has global scope; initialized data in <<C>>. The
217 . value is the offset into the section of the data. *}
218 .#define BSF_GLOBAL 0x02
220 . {* The symbol has global scope and is exported. The value is
221 . the offset into the section of the data. *}
222 .#define BSF_EXPORT BSF_GLOBAL {* no real difference *}
224 . {* A normal C symbol would be one of:
225 . <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
228 . {* The symbol is a debugging record. The value has an arbitary
230 .#define BSF_DEBUGGING 0x08
232 . {* The symbol denotes a function entry point. Used in ELF,
233 . perhaps others someday. *}
234 .#define BSF_FUNCTION 0x10
236 . {* Used by the linker. *}
237 .#define BSF_KEEP 0x20
238 .#define BSF_KEEP_G 0x40
240 . {* A weak global symbol, overridable without warnings by
241 . a regular global symbol of the same name. *}
242 .#define BSF_WEAK 0x80
244 . {* This symbol was created to point to a section, e.g. ELF's
245 . STT_SECTION symbols. *}
246 .#define BSF_SECTION_SYM 0x100
248 . {* The symbol used to be a common symbol, but now it is
250 .#define BSF_OLD_COMMON 0x200
252 . {* The default value for common data. *}
253 .#define BFD_FORT_COMM_DEFAULT_VALUE 0
255 . {* In some files the type of a symbol sometimes alters its
256 . location in an output file - ie in coff a <<ISFCN>> symbol
257 . which is also <<C_EXT>> symbol appears where it was
258 . declared and not at the end of a section. This bit is set
259 . by the target BFD part to convey this information. *}
261 .#define BSF_NOT_AT_END 0x400
263 . {* Signal that the symbol is the label of constructor section. *}
264 .#define BSF_CONSTRUCTOR 0x800
266 . {* Signal that the symbol is a warning symbol. The name is a
267 . warning. The name of the next symbol is the one to warn about;
268 . if a reference is made to a symbol with the same name as the next
269 . symbol, a warning is issued by the linker. *}
270 .#define BSF_WARNING 0x1000
272 . {* Signal that the symbol is indirect. This symbol is an indirect
273 . pointer to the symbol with the same name as the next symbol. *}
274 .#define BSF_INDIRECT 0x2000
276 . {* BSF_FILE marks symbols that contain a file name. This is used
277 . for ELF STT_FILE symbols. *}
278 .#define BSF_FILE 0x4000
280 . {* Symbol is from dynamic linking information. *}
281 .#define BSF_DYNAMIC 0x8000
285 . {* A pointer to the section to which this symbol is
286 . relative. This will always be non NULL, there are special
287 . sections for undefined and absolute symbols. *}
288 . struct sec *section;
290 . {* Back end special data. *}
304 #include "aout/stab_gnu.h"
309 symbol handling functions, , typedef asymbol, Symbols
311 Symbol handling functions
316 bfd_get_symtab_upper_bound
319 Return the number of bytes required to store a vector of pointers
320 to <<asymbols>> for all the symbols in the BFD @var{abfd},
321 including a terminal NULL pointer. If there are no symbols in
322 the BFD, then return 0. If an error occurs, return -1.
324 .#define bfd_get_symtab_upper_bound(abfd) \
325 . BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
334 boolean bfd_is_local_label(bfd *abfd, asymbol *sym);
337 Return true if the given symbol @var{sym} in the BFD @var{abfd} is
338 a compiler generated local label, else return false.
339 .#define bfd_is_local_label(abfd, sym) \
340 . BFD_SEND (abfd, _bfd_is_local_label,(abfd, sym))
345 bfd_canonicalize_symtab
348 Read the symbols from the BFD @var{abfd}, and fills in
349 the vector @var{location} with pointers to the symbols and
351 Return the actual number of symbol pointers, not
355 .#define bfd_canonicalize_symtab(abfd, location) \
356 . BFD_SEND (abfd, _bfd_canonicalize_symtab,\
367 boolean bfd_set_symtab (bfd *abfd, asymbol **location, unsigned int count);
370 Arrange that when the output BFD @var{abfd} is closed,
371 the table @var{location} of @var{count} pointers to symbols
376 bfd_set_symtab (abfd, location, symcount)
379 unsigned int symcount;
381 if ((abfd->format != bfd_object) || (bfd_read_p (abfd)))
383 bfd_set_error (bfd_error_invalid_operation);
387 bfd_get_outsymbols (abfd) = location;
388 bfd_get_symcount (abfd) = symcount;
394 bfd_print_symbol_vandf
397 void bfd_print_symbol_vandf(PTR file, asymbol *symbol);
400 Print the value and flags of the @var{symbol} supplied to the
404 bfd_print_symbol_vandf (arg, symbol)
408 FILE *file = (FILE *) arg;
409 flagword type = symbol->flags;
410 if (symbol->section != (asection *) NULL)
412 fprintf_vma (file, symbol->value + symbol->section->vma);
416 fprintf_vma (file, symbol->value);
419 /* This presumes that a symbol can not be both BSF_DEBUGGING and
420 BSF_DYNAMIC, nor both BSF_FUNCTION and BSF_FILE. */
421 fprintf (file, " %c%c%c%c%c%c%c",
423 ? (type & BSF_GLOBAL) ? '!' : 'l'
424 : (type & BSF_GLOBAL) ? 'g' : ' '),
425 (type & BSF_WEAK) ? 'w' : ' ',
426 (type & BSF_CONSTRUCTOR) ? 'C' : ' ',
427 (type & BSF_WARNING) ? 'W' : ' ',
428 (type & BSF_INDIRECT) ? 'I' : ' ',
429 (type & BSF_DEBUGGING) ? 'd' : (type & BSF_DYNAMIC) ? 'D' : ' ',
430 (type & BSF_FUNCTION) ? 'F' : (type & BSF_FILE) ? 'f' : ' ');
436 bfd_make_empty_symbol
439 Create a new <<asymbol>> structure for the BFD @var{abfd}
440 and return a pointer to it.
442 This routine is necessary because each back end has private
443 information surrounding the <<asymbol>>. Building your own
444 <<asymbol>> and pointing to it will not create the private
445 information, and will cause problems later on.
447 .#define bfd_make_empty_symbol(abfd) \
448 . BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
453 bfd_make_debug_symbol
456 Create a new <<asymbol>> structure for the BFD @var{abfd},
457 to be used as a debugging symbol. Further details of its use have
458 yet to be worked out.
460 .#define bfd_make_debug_symbol(abfd,ptr,size) \
461 . BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
464 struct section_to_type
470 /* Map section names to POSIX/BSD single-character symbol types.
471 This table is probably incomplete. It is sorted for convenience of
472 adding entries. Since it is so short, a linear search is used. */
473 static CONST struct section_to_type stt[] =
478 {".rdata", 'r'}, /* Read only data. */
479 {".rodata", 'r'}, /* Read only data. */
480 {".sbss", 's'}, /* Small BSS (uninitialized data). */
481 {".scommon", 'c'}, /* Small common. */
482 {".sdata", 'g'}, /* Small initialized data. */
487 /* Return the single-character symbol type corresponding to
488 section S, or '?' for an unknown COFF section.
490 Check for any leading string which matches, so .text5 returns
491 't' as well as .text */
494 coff_section_type (s)
497 CONST struct section_to_type *t;
499 for (t = &stt[0]; t->section; t++)
500 if (!strncmp (s, t->section, strlen (t->section)))
507 #define islower(c) ((c) >= 'a' && (c) <= 'z')
510 #define toupper(c) (islower(c) ? ((c) & ~0x20) : (c))
518 Return a character corresponding to the symbol
519 class of @var{symbol}, or '?' for an unknown class.
522 int bfd_decode_symclass(asymbol *symbol);
525 bfd_decode_symclass (symbol)
530 if (bfd_is_com_section (symbol->section))
532 if (bfd_is_und_section (symbol->section))
534 if (bfd_is_ind_section (symbol->section))
536 if (symbol->flags & BSF_WEAK)
538 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
541 if (bfd_is_abs_section (symbol->section))
543 else if (symbol->section)
544 c = coff_section_type (symbol->section->name);
547 if (symbol->flags & BSF_GLOBAL)
551 /* We don't have to handle these cases just yet, but we will soon:
566 Fill in the basic info about symbol that nm needs.
567 Additional info may be added by the back-ends after
568 calling this function.
571 void bfd_symbol_info(asymbol *symbol, symbol_info *ret);
575 bfd_symbol_info (symbol, ret)
579 ret->type = bfd_decode_symclass (symbol);
580 if (ret->type != 'U')
581 ret->value = symbol->value + symbol->section->vma;
584 ret->name = symbol->name;
588 bfd_symbol_is_absolute ()
595 bfd_copy_private_symbol_data
598 boolean bfd_copy_private_symbol_data(bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym);
601 Copy private symbol information from @var{isym} in the BFD
602 @var{ibfd} to the symbol @var{osym} in the BFD @var{obfd}.
603 Return <<true>> on success, <<false>> on error. Possible error
606 o <<bfd_error_no_memory>> -
607 Not enough memory exists to create private data for @var{osec}.
609 .#define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
610 . BFD_SEND (ibfd, _bfd_copy_private_symbol_data, \
611 . (ibfd, isymbol, obfd, osymbol))
615 /* The generic version of the function which returns mini symbols.
616 This is used when the backend does not provide a more efficient
617 version. It just uses BFD asymbol structures as mini symbols. */
620 _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep)
627 asymbol **syms = NULL;
631 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
633 storage = bfd_get_symtab_upper_bound (abfd);
637 syms = (asymbol **) bfd_malloc ((size_t) storage);
642 symcount = bfd_canonicalize_dynamic_symtab (abfd, syms);
644 symcount = bfd_canonicalize_symtab (abfd, syms);
648 *minisymsp = (PTR) syms;
649 *sizep = sizeof (asymbol *);
658 /* The generic version of the function which converts a minisymbol to
659 an asymbol. We don't worry about the sym argument we are passed;
660 we just return the asymbol the minisymbol points to. */
664 _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym)
670 return *(asymbol **) minisym;
673 /* Look through stabs debugging information in .stab and .stabstr
674 sections to find the source file and line closest to a desired
675 location. This is used by COFF and ELF targets. It sets *pfound
676 to true if it finds some information. The *pinfo field is used to
677 pass cached information in and out of this routine; this first time
678 the routine is called for a BFD, *pinfo should be NULL. The value
679 placed in *pinfo should be saved with the BFD, and passed back each
680 time this function is called. */
682 /* A pointer to this structure is stored in *pinfo. */
684 struct stab_find_info
686 /* The .stab section. */
688 /* The .stabstr section. */
690 /* The contents of the .stab section. */
692 /* The contents of the .stabstr section. */
694 /* An malloc buffer to hold the file name. */
696 /* Cached values to restart quickly. */
697 bfd_vma cached_offset;
698 bfd_byte *cached_stab;
699 bfd_byte *cached_str;
700 bfd_size_type cached_stroff;
704 _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, pfound,
705 pfilename, pfnname, pline, pinfo)
711 const char **pfilename;
712 const char **pfnname;
716 struct stab_find_info *info;
717 bfd_size_type stabsize, strsize;
718 bfd_byte *stab, *stabend, *str;
719 bfd_size_type stroff;
721 char *directory_name, *main_file_name, *current_file_name, *line_file_name;
723 bfd_vma low_func_vma, low_line_vma;
726 *pfilename = bfd_get_filename (abfd);
730 info = (struct stab_find_info *) *pinfo;
733 if (info->stabsec == NULL || info->strsec == NULL)
735 /* No stabs debugging information. */
739 stabsize = info->stabsec->_raw_size;
740 strsize = info->strsec->_raw_size;
744 long reloc_size, reloc_count;
745 arelent **reloc_vector;
747 info = (struct stab_find_info *) bfd_zalloc (abfd, sizeof *info);
751 /* FIXME: When using the linker --split-by-file or
752 --split-by-reloc options, it is possible for the .stab and
753 .stabstr sections to be split. We should handle that. */
755 info->stabsec = bfd_get_section_by_name (abfd, ".stab");
756 info->strsec = bfd_get_section_by_name (abfd, ".stabstr");
758 if (info->stabsec == NULL || info->strsec == NULL)
760 /* No stabs debugging information. Set *pinfo so that we
761 can return quickly in the info != NULL case above. */
766 stabsize = info->stabsec->_raw_size;
767 strsize = info->strsec->_raw_size;
769 info->stabs = (bfd_byte *) bfd_alloc (abfd, stabsize);
770 info->strs = (bfd_byte *) bfd_alloc (abfd, strsize);
771 if (info->stabs == NULL || info->strs == NULL)
774 if (! bfd_get_section_contents (abfd, info->stabsec, info->stabs, 0,
776 || ! bfd_get_section_contents (abfd, info->strsec, info->strs, 0,
780 /* If this is a relocateable object file, we have to relocate
781 the entries in .stab. This should always be simple 32 bit
782 relocations against symbols defined in this object file, so
783 this should be no big deal. */
784 reloc_size = bfd_get_reloc_upper_bound (abfd, info->stabsec);
787 reloc_vector = (arelent **) bfd_malloc (reloc_size);
788 if (reloc_vector == NULL && reloc_size != 0)
790 reloc_count = bfd_canonicalize_reloc (abfd, info->stabsec, reloc_vector,
794 if (reloc_vector != NULL)
802 for (pr = reloc_vector; *pr != NULL; pr++)
809 if (r->howto->rightshift != 0
810 || r->howto->size != 2
811 || r->howto->bitsize != 32
812 || r->howto->pc_relative
813 || r->howto->bitpos != 0
814 || r->howto->dst_mask != 0xffffffff)
816 (*_bfd_error_handler)
817 ("Unsupported .stab relocation");
818 bfd_set_error (bfd_error_invalid_operation);
819 if (reloc_vector != NULL)
824 val = bfd_get_32 (abfd, info->stabs + r->address);
825 val &= r->howto->src_mask;
826 sym = *r->sym_ptr_ptr;
827 val += sym->value + sym->section->vma + r->addend;
828 bfd_put_32 (abfd, val, info->stabs + r->address);
832 if (reloc_vector != NULL)
838 /* We are passed a section relative offset. The offsets in the
839 stabs information are absolute. */
840 offset += bfd_get_section_vma (abfd, section);
842 /* Stabs entries use a 12 byte format:
843 4 byte string table index
845 1 byte stab other field
846 2 byte stab desc field
848 FIXME: This will have to change for a 64 bit object format.
850 The stabs symbols are divided into compilation units. For the
851 first entry in each unit, the type of 0, the value is the length
852 of the string table for this unit, and the desc field is the
853 number of stabs symbols for this unit. */
860 #define STABSIZE (12)
862 /* It would be nice if we could skip ahead to the stabs symbols for
863 the next compilation unit to quickly scan through the compilation
864 units. Unfortunately, since each line number gets a separate
865 stabs entry, it is entirely plausible that a large source file
866 will overflow the 16 bit count of stabs entries. */
868 directory_name = NULL;
869 main_file_name = NULL;
870 current_file_name = NULL;
871 line_file_name = NULL;
876 stabend = info->stabs + stabsize;
878 if (info->cached_stab == NULL || offset < info->cached_offset)
886 stab = info->cached_stab;
887 str = info->cached_str;
888 stroff = info->cached_stroff;
891 info->cached_offset = offset;
893 for (; stab < stabend; stab += STABSIZE)
901 switch (stab[TYPEOFF])
904 /* This is the first entry in a compilation unit. */
905 if ((bfd_size_type) ((info->strs + strsize) - str) < stroff)
911 stroff = bfd_get_32 (abfd, stab + VALOFF);
915 /* The main file name. */
917 val = bfd_get_32 (abfd, stab + VALOFF);
924 name = str + bfd_get_32 (abfd, stab + STRDXOFF);
926 /* An empty string indicates the end of the compilation
930 /* If there are functions in different sections, they
931 may have addresses larger than val, but we don't want
932 to forget the file name. When there are functions in
933 different cases, there is supposed to be an N_FUN at
934 the end of the function indicating where it ends. */
935 if (low_func_vma < val || fnname == NULL)
936 main_file_name = NULL;
940 /* We know that we have to get to at least this point in the
941 stabs entries for this offset. */
942 info->cached_stab = stab;
943 info->cached_str = str;
944 info->cached_stroff = stroff;
946 current_file_name = name;
948 /* Look ahead to the next symbol. Two consecutive N_SO
949 symbols are a directory and a file name. */
950 if (stab + STABSIZE >= stabend
951 || *(stab + STABSIZE + TYPEOFF) != N_SO)
952 directory_name = NULL;
956 directory_name = current_file_name;
957 current_file_name = str + bfd_get_32 (abfd, stab + STRDXOFF);
960 main_file_name = current_file_name;
965 /* The name of an include file. */
966 current_file_name = str + bfd_get_32 (abfd, stab + STRDXOFF);
972 /* A line number. The value is relative to the start of the
974 val = fnaddr + bfd_get_32 (abfd, stab + VALOFF);
975 if (val >= low_line_vma && val <= offset)
977 *pline = bfd_get_16 (abfd, stab + DESCOFF);
979 line_file_name = current_file_name;
984 /* A function name. */
985 val = bfd_get_32 (abfd, stab + VALOFF);
986 name = str + bfd_get_32 (abfd, stab + STRDXOFF);
988 /* An empty string here indicates the end of a function, and
989 the value is relative to fnaddr. */
994 if (val >= low_func_vma && val < offset)
999 if (val >= low_func_vma && val <= offset)
1015 if (main_file_name == NULL)
1017 /* No information found. */
1024 main_file_name = line_file_name;
1026 if (main_file_name != NULL)
1028 if (main_file_name[0] == '/' || directory_name == NULL)
1029 *pfilename = main_file_name;
1034 dirlen = strlen (directory_name);
1035 if (info->filename == NULL
1036 || strncmp (info->filename, directory_name, dirlen) != 0
1037 || strcmp (info->filename + dirlen, main_file_name) != 0)
1039 if (info->filename != NULL)
1040 free (info->filename);
1041 info->filename = (char *) bfd_malloc (dirlen +
1042 strlen (main_file_name)
1044 if (info->filename == NULL)
1046 strcpy (info->filename, directory_name);
1047 strcpy (info->filename + dirlen, main_file_name);
1050 *pfilename = info->filename;
1058 /* This will typically be something like main:F(0,1), so we want
1059 to clobber the colon. It's OK to change the name, since the
1060 string is in our own local storage anyhow. */
1062 s = strchr (fnname, ':');