binutils/elfcomm.h

   1 /* elfcomm.h -- include file of common code for ELF format file.
   2    Copyright 2010
   3    Free Software Foundation, Inc.
   4
   5    Originally developed by Eric Youngdale <eric@andante.jic.com>
   6    Modifications by Nick Clifton <nickc@redhat.com>
   7
   8    This file is part of GNU Binutils.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  23    02110-1301, USA.  */
  24 \f
  25 #ifndef _ELFCOMM_H
  26 #define _ELFCOMM_H
  27
  28 #include "aout/ar.h"
  29
  30 void error (const char *, ...) ATTRIBUTE_PRINTF_1;
  31 void warn (const char *, ...) ATTRIBUTE_PRINTF_1;
  32
  33 #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
  34 /* We can't use any bfd types here since readelf may define BFD64 and
  35    objdump may not.  */
  36 #define HOST_WIDEST_INT long long
  37 #else
  38 #define HOST_WIDEST_INT long
  39 #endif
  40 typedef unsigned HOST_WIDEST_INT elf_vma;
  41
  42 extern void (*byte_put) (unsigned char *, elf_vma, int);
  43 extern void byte_put_little_endian (unsigned char *, elf_vma, int);
  44 extern void byte_put_big_endian (unsigned char *, elf_vma, int);
  45
  46 extern elf_vma (*byte_get) (unsigned char *, int);
  47 extern elf_vma byte_get_signed (unsigned char *, int);
  48 extern elf_vma byte_get_little_endian (unsigned char *, int);
  49 extern elf_vma byte_get_big_endian (unsigned char *, int);
  50 extern void byte_get_64 (unsigned char *, elf_vma *, elf_vma *);
  51
  52 #define BYTE_PUT(field, val)    byte_put (field, val, sizeof (field))
  53 #define BYTE_GET(field)         byte_get (field, sizeof (field))
  54 #define BYTE_GET_SIGNED(field)  byte_get_signed (field, sizeof (field))
  55
  56 /* This is just a bit of syntatic sugar.  */
  57 #define streq(a,b)        (strcmp ((a), (b)) == 0)
  58 #define strneq(a,b,n)     (strncmp ((a), (b), (n)) == 0)
  59 #define const_strneq(a,b) (strncmp ((a), (b), sizeof (b) - 1) == 0)
  60
  61 /* Structure to hold information about an archive file.  */
  62
  63 struct archive_info
  64 {
  65   char * file_name;                     /* Archive file name.  */
  66   FILE * file;                          /* Open file descriptor.  */
  67   elf_vma index_num;                    /* Number of symbols in table.  */
  68   elf_vma * index_array;                /* The array of member offsets.  */
  69   char * sym_table;                     /* The symbol table.  */
  70   unsigned long sym_size;               /* Size of the symbol table.  */
  71   char * longnames;                     /* The long file names table.  */
  72   unsigned long longnames_size;         /* Size of the long file names table.  */
  73   unsigned long nested_member_origin;   /* Origin in the nested archive of the current member.  */
  74   unsigned long next_arhdr_offset;      /* Offset of the next archive header.  */
  75   bfd_boolean is_thin_archive;          /* TRUE if this is a thin archive.  */
  76   bfd_boolean uses_64bit_indicies;      /* TRUE if the index table uses 64bit entries.  */
  77   struct ar_hdr arhdr;                  /* Current archive header.  */
  78 };
  79
  80 /* Return the path name for a proxy entry in a thin archive.  */
  81 extern char *adjust_relative_path (const char *, const char *, int);
  82
  83 /* Read the symbol table and long-name table from an archive.  */
  84 extern int setup_archive (struct archive_info *, const char *, FILE *,
  85                           bfd_boolean, bfd_boolean);
  86
  87 /* Open and setup a nested archive, if not already open.  */
  88 extern int setup_nested_archive (struct archive_info *, const char *);
  89
  90 /* Release the memory used for the archive information.  */
  91 extern void release_archive (struct archive_info *);
  92
  93 /* Get the name of an archive member from the current archive header.  */
  94
  95 extern char *get_archive_member_name (struct archive_info *,
  96                                       struct archive_info *);
  97
  98 /* Get the name of an archive member at a given offset within an
  99    archive.  */
 100
 101 extern char *get_archive_member_name_at (struct archive_info *,
 102                                          unsigned long,
 103                                          struct archive_info *);
 104
 105 /* Construct a string showing the name of the archive member, qualified
 106    with the name of the containing archive file.  */
 107
 108 extern char *make_qualified_name (struct archive_info *,
 109                                   struct archive_info *,
 110                                   const char *);
 111
 112 #endif /* _ELFCOMM_H */