1 .\" Copyright (c) 2010-2011 Joseph Koshy. All rights reserved.
3 .\" Redistribution and use in source and binary forms, with or without
4 .\" modification, are permitted provided that the following conditions
6 .\" 1. Redistributions of source code must retain the above copyright
7 .\" notice, this list of conditions and the following disclaimer.
8 .\" 2. Redistributions in binary form must reproduce the above copyright
9 .\" notice, this list of conditions and the following disclaimer in the
10 .\" documentation and/or other materials provided with the distribution.
12 .\" This software is provided by Joseph Koshy ``as is'' and
13 .\" any express or implied warranties, including, but not limited to, the
14 .\" implied warranties of merchantability and fitness for a particular purpose
15 .\" are disclaimed. in no event shall Joseph Koshy be liable
16 .\" for any direct, indirect, incidental, special, exemplary, or consequential
17 .\" damages (including, but not limited to, procurement of substitute goods
18 .\" or services; loss of use, data, or profits; or business interruption)
19 .\" however caused and on any theory of liability, whether in contract, strict
20 .\" liability, or tort (including negligence or otherwise) arising in any way
21 .\" out of the use of this software, even if advised of the possibility of
24 .\" $Id: elftc_bfd_find_target.3 3752 2019-06-28 01:12:53Z emaste $
27 .Dt ELFTC_BFD_FIND_TARGET 3
30 .Nm elftc_bfd_find_target ,
31 .Nm elftc_bfd_target_byteorder ,
32 .Nm elftc_bfd_target_class ,
33 .Nm elftc_bfd_target_flavor ,
34 .Nm elftc_bfd_target_machine
35 .Nd binary object descriptor handling
40 .Vt struct Elftc_Bfd_Target;
41 .Ft "Elftc_Bfd_Target *"
42 .Fn elftc_bfd_find_target "const char *target_name"
44 .Fn elftc_bfd_target_class "Elftc_Bfd_Target *target"
46 .Fn elftc_bfd_target_byteorder "Elftc_Bfd_Target *target"
47 .Ft Elftc_Bfd_Target_Flavor
48 .Fn elftc_bfd_target_flavor "Elftc_Bfd_Target *target"
50 .Fn elftc_bfd_target_machine "Elftc_Bfd_Target *target"
53 .Fn elftc_bfd_find_target
54 locates a binary object descriptor corresponding to the descriptor
57 Binary object descriptors encapsulate properties of an object format
58 such as its file representation, ELF class, and byte endianness.
60 Known descriptor names and their properties include:
61 .Bl -column -offset "XXXX" ".Li elf32-x86-64-freebsd" "Object format" "Byte Order" "Bit Width"
62 .It Em Name Ta Em "Object Format" Ta Em "Byte Order" Ta Em "Bit Width"
63 .It Li binary Ta Binary Ta - Ta -
64 .It Li efi-app-ia32 Ta PE Ta LSB Ta 32
65 .It Li efi-app-x86_64 Ta PE Ta LSB Ta 64
66 .It Li elf32-avr Ta ELF Ta LSB Ta 32
67 .It Li elf32-big Ta ELF Ta MSB Ta 32
68 .It Li elf32-bigarm Ta ELF Ta MSB Ta 32
69 .It Li elf32-bigmips Ta ELF Ta MSB Ta 32
70 .It Li elf32-i386 Ta ELF Ta LSB Ta 32
71 .It Li elf32-i386-freebsd Ta ELF Ta LSB Ta 32
72 .It Li elf32-ia64-big Ta ELF Ta MSB Ta 32
73 .It Li elf32-little Ta ELF Ta LSB Ta 32
74 .It Li elf32-littlearm Ta ELF Ta LSB Ta 32
75 .It Li elf32-littlemips Ta ELF Ta LSB Ta 32
76 .It Li elf32-powerpc Ta ELF Ta MSB Ta 32
77 .It Li elf32-powerpc-freebsd Ta ELF Ta MSB Ta 32
78 .It Li elf32-powerpcle Ta ELF Ta LSB Ta 32
79 .It Li elf32-riscv Ta ELF Ta LSB Ta 32
80 .It Li elf64-riscv Ta ELF Ta LSB Ta 64
81 .It Li elf64-riscv-freebsd Ta ELF Ta LSB Ta 64
82 .It Li elf32-sh Ta ELF Ta MSB Ta 32
83 .It Li elf32-shl Ta ELF Ta LSB Ta 32
84 .It Li elf32-sh-nbsd Ta ELF Ta MSB Ta 32
85 .It Li elf32-shl-nbsd Ta ELF Ta LSB Ta 32
86 .It Li elf32-shbig-linux Ta ELF Ta MSB Ta 32
87 .It Li elf32-shl-linux Ta ELF Ta LSB Ta 32
88 .It Li elf32-sparc Ta ELF Ta MSB Ta 32
89 .It Li elf32-tradbigmips Ta ELF Ta MSB Ta 32
90 .It Li elf32-tradlittlemips Ta ELF Ta LSB Ta 32
91 .It Li elf64-alpha Ta ELF Ta LSB Ta 64
92 .It Li elf64-alpha-freebsd Ta ELF Ta LSB Ta 64
93 .It Li elf64-big Ta ELF Ta MSB Ta 64
94 .It Li elf64-bigmips Ta ELF Ta MSB Ta 64
95 .It Li elf64-ia64-big Ta ELF Ta MSB Ta 64
96 .It Li elf64-ia64-little Ta ELF Ta LSB Ta 64
97 .It Li elf64-little Ta ELF Ta LSB Ta 64
98 .It Li elf64-littleaarch64 Ta ELF Ta LSB Ta 64
99 .It Li elf64-littlemips Ta ELF Ta LSB Ta 64
100 .It Li elf64-powerpc Ta ELF Ta MSB Ta 64
101 .It Li elf64-powerpc-freebsd Ta ELF Ta MSB Ta 64
102 .It Li elf64-powerpcle Ta ELF Ta LSB Ta 64
103 .It Li elf64-sh64 Ta ELF Ta MSB Ta 64
104 .It Li elf64-sh64l Ta ELF Ta LSB Ta 64
105 .It Li elf64-sh64-nbsd Ta ELF Ta MSB Ta 64
106 .It Li elf64-sh64l-nbsd Ta ELF Ta LSB Ta 64
107 .It Li elf64-sh64big-linux Ta ELF Ta MSB Ta 64
108 .It Li elf64-sh64-linux Ta ELF Ta LSB Ta 64
109 .It Li elf64-sparc Ta ELF Ta MSB Ta 64
110 .It Li elf64-sparc-freebsd Ta ELF Ta MSB Ta 64
111 .It Li elf64-tradbigmips Ta ELF Ta MSB Ta 64
112 .It Li elf64-tradlittlemips Ta ELF Ta LSB Ta 64
113 .It Li elf64-x86-64 Ta ELF Ta LSB Ta 64
114 .It Li elf64-x86-64-freebsd Ta ELF Ta LSB Ta 64
115 .It Li ihex Ta IHEX Ta - Ta -
116 .It Li pei-i386 Ta PE Ta LSB Ta 32
117 .It Li pei-x86-64 Ta PE Ta LSB Ta 64
118 .It Li srec Ta SREC Ta - Ta -
119 .It Li symbolsrec Ta SREC Ta - Ta -
123 .Fn elftc_bfd_target_byteorder
124 returns the ELF byte order associated with target descriptor
128 .Fn elftc_bfd_target_class
129 returns the ELF class associated with target descriptor
133 .Fn elftc_bfd_target_flavor
134 returns the object format associated with target descriptor
136 The known object formats are:
137 .Bl -tag -offset "XXXX" -width ".Dv ETF_BINARY" -compact
147 An unknown object format.
149 An object encoded as S-records.
153 .Fn elftc_bfd_find_target
154 returns a valid pointer to an opaque binary target descriptor if
155 successful, or NULL in case of an error.
158 .Fn elftc_bfd_target_byteorder
159 returns the ELF byte order associated with the target descriptor; one of
165 .Fn elftc_bfd_target_class
166 returns the ELF class associated with the target descriptor; one of
172 .Fn elftc_bfd_target_machine
173 returns the ELF architecture associated with the target descriptor.
176 .Fn elftc_bfd_target_flavor
187 To return descriptor information associated with target name
190 .Bd -literal -offset indent
191 struct Elftc_Bfd_Target *t;
193 if ((t = elftc_bfd_find_target("elf64-big")) == NULL)
194 errx(EXIT_FAILURE, "Cannot find target descriptor");
196 printf("Class: %s\\n", elftc_bfd_target_class(t) == ELFCLASS32 ?
197 "ELFCLASS32" : "ELFCLASS64");
198 printf("Byteorder: %s\\n",
199 elftc_bfd_target_byteorder(t) == ELFDATA2LSB ? "LSB" : "MSB");
200 printf("Flavor: %d\\n", elftc_bfd_target_flavor(t));