1 /* elfcomm.h -- include file of common code for ELF format file.
2    Copyright (C) 2010-2016 Free Software Foundation, Inc.
3 
4    Originally developed by Eric Youngdale <eric@andante.jic.com>
5    Modifications by Nick Clifton <nickc@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
25 #define _ELFCOMM_H
26 
27 #include "aout/ar.h"
28 
29 void error (const char *, ...) ATTRIBUTE_PRINTF_1;
30 void warn (const char *, ...) ATTRIBUTE_PRINTF_1;
31 
32 #if defined HAVE_LONG_LONG && SIZEOF_LONG_LONG > SIZEOF_LONG
33 /* We can't use any bfd types here since readelf may define BFD64 and
34    objdump may not.  */
35 #define HOST_WIDEST_INT	long long
36 #else
37 #define HOST_WIDEST_INT long
38 #endif
39 typedef unsigned HOST_WIDEST_INT elf_vma;
40 
41 extern void (*byte_put) (unsigned char *, elf_vma, int);
42 extern void byte_put_little_endian (unsigned char *, elf_vma, int);
43 extern void byte_put_big_endian (unsigned char *, elf_vma, int);
44 
45 extern elf_vma (*byte_get) (unsigned char *, int);
46 extern elf_vma byte_get_signed (unsigned char *, int);
47 extern elf_vma byte_get_little_endian (unsigned char *, int);
48 extern elf_vma byte_get_big_endian (unsigned char *, int);
49 extern void byte_get_64 (unsigned char *, elf_vma *, elf_vma *);
50 
51 #define BYTE_PUT(field, val)	byte_put (field, val, sizeof (field))
52 #define BYTE_GET(field)		byte_get (field, sizeof (field))
53 #define BYTE_GET_SIGNED(field)	byte_get_signed (field, sizeof (field))
54 
55 /* This is just a bit of syntatic sugar.  */
56 #define streq(a,b)	  (strcmp ((a), (b)) == 0)
57 #define strneq(a,b,n)	  (strncmp ((a), (b), (n)) == 0)
58 #define const_strneq(a,b) (strncmp ((a), (b), sizeof (b) - 1) == 0)
59 
60 /* Structure to hold information about an archive file.  */
61 
62 struct archive_info
63 {
64   char * file_name;                     /* Archive file name.  */
65   FILE * file;                          /* Open file descriptor.  */
66   elf_vma index_num;                    /* Number of symbols in table.  */
67   elf_vma * index_array;                /* The array of member offsets.  */
68   char * sym_table;                     /* The symbol table.  */
69   unsigned long sym_size;               /* Size of the symbol table.  */
70   char * longnames;                     /* The long file names table.  */
71   unsigned long longnames_size;         /* Size of the long file names table.  */
72   unsigned long nested_member_origin;   /* Origin in the nested archive of the current member.  */
73   unsigned long next_arhdr_offset;      /* Offset of the next archive header.  */
74   bfd_boolean is_thin_archive;          /* TRUE if this is a thin archive.  */
75   bfd_boolean uses_64bit_indicies;      /* TRUE if the index table uses 64bit entries.  */
76   struct ar_hdr arhdr;                  /* Current archive header.  */
77 };
78 
79 /* Return the path name for a proxy entry in a thin archive.  */
80 extern char *adjust_relative_path (const char *, const char *, unsigned long);
81 
82 /* Read the symbol table and long-name table from an archive.  */
83 extern int setup_archive (struct archive_info *, const char *, FILE *,
84 			  bfd_boolean, bfd_boolean);
85 
86 /* Open and setup a nested archive, if not already open.  */
87 extern int setup_nested_archive (struct archive_info *, const char *);
88 
89 /* Release the memory used for the archive information.  */
90 extern void release_archive (struct archive_info *);
91 
92 /* Get the name of an archive member from the current archive header.  */
93 
94 extern char *get_archive_member_name (struct archive_info *,
95 				      struct archive_info *);
96 
97 /* Get the name of an archive member at a given offset within an
98    archive.  */
99 
100 extern char *get_archive_member_name_at (struct archive_info *,
101 					 unsigned long,
102 					 struct archive_info *);
103 
104 /* Construct a string showing the name of the archive member, qualified
105    with the name of the containing archive file.  */
106 
107 extern char *make_qualified_name (struct archive_info *,
108 				  struct archive_info *,
109 				  const char *);
110 
111 #endif /* _ELFCOMM_H */
112