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      1 /* elfcomm.h -- include file of common code for ELF format file.
      2    Copyright (C) 2010-2014 Free Software Foundation, Inc.
      3 
      4    Originally developed by Eric Youngdale <eric (at) andante.jic.com>
      5    Modifications by Nick Clifton <nickc (at) redhat.com>
      6 
      7    This file is part of GNU Binutils.
      8 
      9    This program is free software; you can redistribute it and/or modify
     10    it under the terms of the GNU General Public License as published by
     11    the Free Software Foundation; either version 3 of the License, or
     12    (at your option) any later version.
     13 
     14    This program is distributed in the hope that it will be useful,
     15    but WITHOUT ANY WARRANTY; without even the implied warranty of
     16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17    GNU General Public License for more details.
     18 
     19    You should have received a copy of the GNU General Public License
     20    along with this program; if not, write to the Free Software
     21    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
     22    02110-1301, USA.  */
     23 
     24 #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 */
    113