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<h2 class="chapter">16 elfedit</h2>
<p><a name="index-Update-ELF-header-163"></a><a name="index-elfedit-164"></a>
<!-- man title elfedit Update the ELF header of ELF files. -->
<pre class="smallexample"> <!-- man begin SYNOPSIS elfedit -->
elfedit [<samp><span class="option">--input-mach=</span></samp><var>machine</var>]
[<samp><span class="option">--input-type=</span></samp><var>type</var>]
[<samp><span class="option">--input-osabi=</span></samp><var>osabi</var>]
<samp><span class="option">--output-mach=</span></samp><var>machine</var>
<samp><span class="option">--output-type=</span></samp><var>type</var>
<samp><span class="option">--output-osabi=</span></samp><var>osabi</var>
[<samp><span class="option">-v</span></samp>|<samp><span class="option">--version</span></samp>]
[<samp><span class="option">-h</span></samp>|<samp><span class="option">--help</span></samp>]
<var>elffile</var>...
<!-- man end -->
</pre>
<!-- man begin DESCRIPTION elfedit -->
<p><samp><span class="command">elfedit</span></samp> updates the ELF header of ELF files which have
the matching ELF machine and file types. The options control how and
which fields in the ELF header should be updated.
<p><var>elffile</var><small class="dots">...</small> are the ELF files to be updated. 32-bit and
64-bit ELF files are supported, as are archives containing ELF files.
<!-- man end -->
<!-- man begin OPTIONS elfedit -->
<p>The long and short forms of options, shown here as alternatives, are
equivalent. At least one of the <samp><span class="option">--output-mach</span></samp>,
<samp><span class="option">--output-type</span></samp> and <samp><span class="option">--output-osabi</span></samp> options must be given.
<dl>
<dt><samp><span class="env">--input-mach=</span><var>machine</var></samp><dd>Set the matching input ELF machine type to <var>machine</var>. If
<samp><span class="option">--input-mach</span></samp> isn't specified, it will match any ELF
machine types.
<p>The supported ELF machine types are, <var>i386</var>, <var>IAMCU</var>, <var>L1OM</var>,
<var>K1OM</var> and <var>x86-64</var>.
<br><dt><samp><span class="env">--output-mach=</span><var>machine</var></samp><dd>Change the ELF machine type in the ELF header to <var>machine</var>. The
supported ELF machine types are the same as <samp><span class="option">--input-mach</span></samp>.
<br><dt><samp><span class="env">--input-type=</span><var>type</var></samp><dd>Set the matching input ELF file type to <var>type</var>. If
<samp><span class="option">--input-type</span></samp> isn't specified, it will match any ELF file types.
<p>The supported ELF file types are, <var>rel</var>, <var>exec</var> and <var>dyn</var>.
<br><dt><samp><span class="env">--output-type=</span><var>type</var></samp><dd>Change the ELF file type in the ELF header to <var>type</var>. The
supported ELF types are the same as <samp><span class="option">--input-type</span></samp>.
<br><dt><samp><span class="env">--input-osabi=</span><var>osabi</var></samp><dd>Set the matching input ELF file OSABI to <var>osabi</var>. If
<samp><span class="option">--input-osabi</span></samp> isn't specified, it will match any ELF OSABIs.
<p>The supported ELF OSABIs are, <var>none</var>, <var>HPUX</var>, <var>NetBSD</var>,
<var>GNU</var>, <var>Linux</var> (alias for <var>GNU</var>),
<var>Solaris</var>, <var>AIX</var>, <var>Irix</var>,
<var>FreeBSD</var>, <var>TRU64</var>, <var>Modesto</var>, <var>OpenBSD</var>, <var>OpenVMS</var>,
<var>NSK</var>, <var>AROS</var> and <var>FenixOS</var>.
<br><dt><samp><span class="env">--output-osabi=</span><var>osabi</var></samp><dd>Change the ELF OSABI in the ELF header to <var>osabi</var>. The
supported ELF OSABI are the same as <samp><span class="option">--input-osabi</span></samp>.
<br><dt><samp><span class="env">-v</span></samp><dt><samp><span class="env">--version</span></samp><dd>Display the version number of <samp><span class="command">elfedit</span></samp>.
<br><dt><samp><span class="env">-h</span></samp><dt><samp><span class="env">--help</span></samp><dd>Display the command line options understood by <samp><span class="command">elfedit</span></samp>.
</dl>
<!-- man end -->
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