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135 .IX Title "ELFEDIT 1"
136 .TH ELFEDIT 1 "2023-04-26" "binutils-2.40.00" "GNU Development Tools"
137 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
138 .\" way too many mistakes in technical documents.
142 elfedit \- update ELF header and program property of ELF files
144 .IX Header "SYNOPSIS"
145 elfedit [\fB\-\-input\-mach=\fR\fImachine\fR]
146 [\fB\-\-input\-type=\fR\fItype\fR]
147 [\fB\-\-input\-osabi=\fR\fIosabi\fR]
148 [\fB\-\-input\-abiversion=\fR\fIversion\fR]
149 \fB\-\-output\-mach=\fR\fImachine\fR
150 \fB\-\-output\-type=\fR\fItype\fR
151 \fB\-\-output\-osabi=\fR\fIosabi\fR
152 \fB\-\-output\-abiversion=\fR\fIversion\fR
153 \fB\-\-enable\-x86\-feature=\fR\fIfeature\fR
154 \fB\-\-disable\-x86\-feature=\fR\fIfeature\fR
155 [\fB\-v\fR|\fB\-\-version\fR]
156 [\fB\-h\fR|\fB\-\-help\fR]
159 .IX Header "DESCRIPTION"
160 \&\fBelfedit\fR updates the \s-1ELF\s0 header and program property of \s-1ELF\s0
161 files which have the matching \s-1ELF\s0 machine and file types. The options
162 control how and which fields in the \s-1ELF\s0 header and program property
165 \&\fIelffile\fR... are the \s-1ELF\s0 files to be updated. 32\-bit and
166 64\-bit \s-1ELF\s0 files are supported, as are archives containing \s-1ELF\s0 files.
169 The long and short forms of options, shown here as alternatives, are
170 equivalent. At least one of the \fB\-\-output\-mach\fR,
171 \&\fB\-\-output\-type\fR, \fB\-\-output\-osabi\fR,
172 \&\fB\-\-output\-abiversion\fR,
173 \&\fB\-\-enable\-x86\-feature\fR and \fB\-\-disable\-x86\-feature\fR
174 options must be given.
175 .IP "\fB\-\-input\-mach=\fR\fImachine\fR" 4
176 .IX Item "--input-mach=machine"
177 Set the matching input \s-1ELF\s0 machine type to \fImachine\fR. If
178 \&\fB\-\-input\-mach\fR isn't specified, it will match any \s-1ELF\s0
181 The supported \s-1ELF\s0 machine types are, \fIi386\fR, \fI\s-1IAMCU\s0\fR, \fIL1OM\fR,
182 \&\fIK1OM\fR and \fIx86\-64\fR.
183 .IP "\fB\-\-output\-mach=\fR\fImachine\fR" 4
184 .IX Item "--output-mach=machine"
185 Change the \s-1ELF\s0 machine type in the \s-1ELF\s0 header to \fImachine\fR. The
186 supported \s-1ELF\s0 machine types are the same as \fB\-\-input\-mach\fR.
187 .IP "\fB\-\-input\-type=\fR\fItype\fR" 4
188 .IX Item "--input-type=type"
189 Set the matching input \s-1ELF\s0 file type to \fItype\fR. If
190 \&\fB\-\-input\-type\fR isn't specified, it will match any \s-1ELF\s0 file types.
192 The supported \s-1ELF\s0 file types are, \fIrel\fR, \fIexec\fR and \fIdyn\fR.
193 .IP "\fB\-\-output\-type=\fR\fItype\fR" 4
194 .IX Item "--output-type=type"
195 Change the \s-1ELF\s0 file type in the \s-1ELF\s0 header to \fItype\fR. The
196 supported \s-1ELF\s0 types are the same as \fB\-\-input\-type\fR.
197 .IP "\fB\-\-input\-osabi=\fR\fIosabi\fR" 4
198 .IX Item "--input-osabi=osabi"
199 Set the matching input \s-1ELF\s0 file \s-1OSABI\s0 to \fIosabi\fR. If
200 \&\fB\-\-input\-osabi\fR isn't specified, it will match any \s-1ELF\s0 OSABIs.
202 The supported \s-1ELF\s0 OSABIs are, \fInone\fR, \fI\s-1HPUX\s0\fR, \fINetBSD\fR,
203 \&\fI\s-1GNU\s0\fR, \fILinux\fR (alias for \fI\s-1GNU\s0\fR),
204 \&\fISolaris\fR, \fI\s-1AIX\s0\fR, \fIIrix\fR,
205 \&\fIFreeBSD\fR, \fI\s-1TRU64\s0\fR, \fIModesto\fR, \fIOpenBSD\fR, \fIOpenVMS\fR,
206 \&\fI\s-1NSK\s0\fR, \fI\s-1AROS\s0\fR and \fIFenixOS\fR.
207 .IP "\fB\-\-output\-osabi=\fR\fIosabi\fR" 4
208 .IX Item "--output-osabi=osabi"
209 Change the \s-1ELF OSABI\s0 in the \s-1ELF\s0 header to \fIosabi\fR. The
210 supported \s-1ELF OSABI\s0 are the same as \fB\-\-input\-osabi\fR.
211 .IP "\fB\-\-input\-abiversion=\fR\fIversion\fR" 4
212 .IX Item "--input-abiversion=version"
213 Set the matching input \s-1ELF\s0 file \s-1ABIVERSION\s0 to \fIversion\fR.
214 \&\fIversion\fR must be between 0 and 255. If \fB\-\-input\-abiversion\fR
215 isn't specified, it will match any \s-1ELF\s0 ABIVERSIONs.
216 .IP "\fB\-\-output\-abiversion=\fR\fIversion\fR" 4
217 .IX Item "--output-abiversion=version"
218 Change the \s-1ELF ABIVERSION\s0 in the \s-1ELF\s0 header to \fIversion\fR.
219 \&\fIversion\fR must be between 0 and 255.
220 .IP "\fB\-\-enable\-x86\-feature=\fR\fIfeature\fR" 4
221 .IX Item "--enable-x86-feature=feature"
222 Set the \fIfeature\fR bit in program property in \fIexec\fR or \fIdyn\fR
223 \&\s-1ELF\s0 files with machine types of \fIi386\fR or \fIx86\-64\fR. The
224 supported features are, \fIibt\fR, \fIshstk\fR, \fIlam_u48\fR and
226 .IP "\fB\-\-disable\-x86\-feature=\fR\fIfeature\fR" 4
227 .IX Item "--disable-x86-feature=feature"
228 Clear the \fIfeature\fR bit in program property in \fIexec\fR or
229 \&\fIdyn\fR \s-1ELF\s0 files with machine types of \fIi386\fR or \fIx86\-64\fR.
230 The supported features are the same as \fB\-\-enable\-x86\-feature\fR.
232 Note: \fB\-\-enable\-x86\-feature\fR and \fB\-\-disable\-x86\-feature\fR
233 are available only on hosts with \fBmmap\fR support.
237 .IP "\fB\-\-version\fR" 4
240 Display the version number of \fBelfedit\fR.
244 .IP "\fB\-\-help\fR" 4
247 Display the command-line options understood by \fBelfedit\fR.
248 .IP "\fB@\fR\fIfile\fR" 4
250 Read command-line options from \fIfile\fR. The options read are
251 inserted in place of the original @\fIfile\fR option. If \fIfile\fR
252 does not exist, or cannot be read, then the option will be treated
253 literally, and not removed.
255 Options in \fIfile\fR are separated by whitespace. A whitespace
256 character may be included in an option by surrounding the entire
257 option in either single or double quotes. Any character (including a
258 backslash) may be included by prefixing the character to be included
259 with a backslash. The \fIfile\fR may itself contain additional
260 @\fIfile\fR options; any such options will be processed recursively.
262 .IX Header "SEE ALSO"
263 \&\fBreadelf\fR\|(1), and the Info entries for \fIbinutils\fR.
265 .IX Header "COPYRIGHT"
266 Copyright (c) 1991\-2023 Free Software Foundation, Inc.
268 Permission is granted to copy, distribute and/or modify this document
269 under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.3
270 or any later version published by the Free Software Foundation;
271 with no Invariant Sections, with no Front-Cover Texts, and with no
272 Back-Cover Texts. A copy of the license is included in the
273 section entitled \*(L"\s-1GNU\s0 Free Documentation License\*(R".