.\" Automatically generated by Pod::Man 4.12 (Pod::Simple 3.35)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" Set up some character translations and predefined strings.  \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote.  \*(C+ will
.\" give a nicer C++.  Capital omega is used to do unbreakable dashes and
.\" therefore won't be available.  \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
.    ds -- \(*W-
.    ds PI pi
.    if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
.    if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\"  diablo 12 pitch
.    ds L" ""
.    ds R" ""
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds -- \|\(em\|
.    ds PI \(*p
.    ds L" ``
.    ds R" ''
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
.    if \nF \{\
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{\
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear.  Run.  Save yourself.  No user-serviceable parts.
.    \" fudge factors for nroff and troff
.if n \{\
.    ds #H 0
.    ds #V .8m
.    ds #F .3m
.    ds #[ \f1
.    ds #] \fP
.\}
.if t \{\
.    ds #H ((1u-(\\\\n(.fu%2u))*.13m)
.    ds #V .6m
.    ds #F 0
.    ds #[ \&
.    ds #] \&
.\}
.    \" simple accents for nroff and troff
.if n \{\
.    ds ' \&
.    ds ` \&
.    ds ^ \&
.    ds , \&
.    ds ~ ~
.    ds /
.\}
.if t \{\
.    ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
.    ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
.    ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
.    ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
.    ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
.    ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
.\}
.    \" troff and (daisy-wheel) nroff accents
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
.ds ae a\h'-(\w'a'u*4/10)'e
.ds Ae A\h'-(\w'A'u*4/10)'E
.    \" corrections for vroff
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
.    \" for low resolution devices (crt and lpr)
.if \n(.H>23 .if \n(.V>19 \
\{\
.    ds : e
.    ds 8 ss
.    ds o a
.    ds d- d\h'-1'\(ga
.    ds D- D\h'-1'\(hy
.    ds th \o'bp'
.    ds Th \o'LP'
.    ds ae ae
.    ds Ae AE
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "ELFEDIT 1"
.TH ELFEDIT 1 "2020-09-19" "binutils-2.35.1" "GNU Development Tools"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
elfedit \- update ELF header and program property of ELF files
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
elfedit [\fB\-\-input\-mach=\fR\fImachine\fR]
        [\fB\-\-input\-type=\fR\fItype\fR]
        [\fB\-\-input\-osabi=\fR\fIosabi\fR]
        \fB\-\-output\-mach=\fR\fImachine\fR
        \fB\-\-output\-type=\fR\fItype\fR
        \fB\-\-output\-osabi=\fR\fIosabi\fR
        \fB\-\-enable\-x86\-feature=\fR\fIfeature\fR
        \fB\-\-disable\-x86\-feature=\fR\fIfeature\fR
        [\fB\-v\fR|\fB\-\-version\fR]
        [\fB\-h\fR|\fB\-\-help\fR]
        \fIelffile\fR...
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBelfedit\fR updates the \s-1ELF\s0 header and program property of \s-1ELF\s0
files which have the matching \s-1ELF\s0 machine and file types.  The options
control how and which fields in the \s-1ELF\s0 header and program property
should be updated.
.PP
\&\fIelffile\fR... are the \s-1ELF\s0 files to be updated.  32\-bit and
64\-bit \s-1ELF\s0 files are supported, as are archives containing \s-1ELF\s0 files.
.SH "OPTIONS"
.IX Header "OPTIONS"
The long and short forms of options, shown here as alternatives, are
equivalent. At least one of the \fB\-\-output\-mach\fR,
\&\fB\-\-output\-type\fR, \fB\-\-output\-osabi\fR,
\&\fB\-\-enable\-x86\-feature\fR and \fB\-\-disable\-x86\-feature\fR
options must be given.
.IP "\fB\-\-input\-mach=\fR\fImachine\fR" 4
.IX Item "--input-mach=machine"
Set the matching input \s-1ELF\s0 machine type to \fImachine\fR.  If
\&\fB\-\-input\-mach\fR isn't specified, it will match any \s-1ELF\s0
machine types.
.Sp
The supported \s-1ELF\s0 machine types are, \fIi386\fR, \fI\s-1IAMCU\s0\fR, \fIL1OM\fR,
\&\fIK1OM\fR and \fIx86\-64\fR.
.IP "\fB\-\-output\-mach=\fR\fImachine\fR" 4
.IX Item "--output-mach=machine"
Change the \s-1ELF\s0 machine type in the \s-1ELF\s0 header to \fImachine\fR.  The
supported \s-1ELF\s0 machine types are the same as \fB\-\-input\-mach\fR.
.IP "\fB\-\-input\-type=\fR\fItype\fR" 4
.IX Item "--input-type=type"
Set the matching input \s-1ELF\s0 file type to \fItype\fR.  If
\&\fB\-\-input\-type\fR isn't specified, it will match any \s-1ELF\s0 file types.
.Sp
The supported \s-1ELF\s0 file types are, \fIrel\fR, \fIexec\fR and \fIdyn\fR.
.IP "\fB\-\-output\-type=\fR\fItype\fR" 4
.IX Item "--output-type=type"
Change the \s-1ELF\s0 file type in the \s-1ELF\s0 header to \fItype\fR.  The
supported \s-1ELF\s0 types are the same as \fB\-\-input\-type\fR.
.IP "\fB\-\-input\-osabi=\fR\fIosabi\fR" 4
.IX Item "--input-osabi=osabi"
Set the matching input \s-1ELF\s0 file \s-1OSABI\s0 to \fIosabi\fR.  If
\&\fB\-\-input\-osabi\fR isn't specified, it will match any \s-1ELF\s0 OSABIs.
.Sp
The supported \s-1ELF\s0 OSABIs are, \fInone\fR, \fI\s-1HPUX\s0\fR, \fINetBSD\fR,
\&\fI\s-1GNU\s0\fR, \fILinux\fR (alias for \fI\s-1GNU\s0\fR),
\&\fISolaris\fR, \fI\s-1AIX\s0\fR, \fIIrix\fR,
\&\fIFreeBSD\fR, \fI\s-1TRU64\s0\fR, \fIModesto\fR, \fIOpenBSD\fR, \fIOpenVMS\fR,
\&\fI\s-1NSK\s0\fR, \fI\s-1AROS\s0\fR and \fIFenixOS\fR.
.IP "\fB\-\-output\-osabi=\fR\fIosabi\fR" 4
.IX Item "--output-osabi=osabi"
Change the \s-1ELF OSABI\s0 in the \s-1ELF\s0 header to \fIosabi\fR.  The
supported \s-1ELF OSABI\s0 are the same as \fB\-\-input\-osabi\fR.
.IP "\fB\-\-enable\-x86\-feature=\fR\fIfeature\fR" 4
.IX Item "--enable-x86-feature=feature"
Set the \fIfeature\fR bit in program property in \fIexec\fR or \fIdyn\fR
\&\s-1ELF\s0 files with machine types of \fIi386\fR or \fIx86\-64\fR.  The
supported features are, \fIibt\fR and \fIshstk\fR.
.IP "\fB\-\-disable\-x86\-feature=\fR\fIfeature\fR" 4
.IX Item "--disable-x86-feature=feature"
Clear the \fIfeature\fR bit in program property in \fIexec\fR or
\&\fIdyn\fR \s-1ELF\s0 files with machine types of \fIi386\fR or \fIx86\-64\fR.
The supported features are the same as \fB\-\-enable\-x86\-feature\fR.
.Sp
Note: \fB\-\-enable\-x86\-feature\fR and \fB\-\-disable\-x86\-feature\fR
are available only on hosts with \fBmmap\fR support.
.IP "\fB\-v\fR" 4
.IX Item "-v"
.PD 0
.IP "\fB\-\-version\fR" 4
.IX Item "--version"
.PD
Display the version number of \fBelfedit\fR.
.IP "\fB\-h\fR" 4
.IX Item "-h"
.PD 0
.IP "\fB\-\-help\fR" 4
.IX Item "--help"
.PD
Display the command-line options understood by \fBelfedit\fR.
.IP "\fB@\fR\fIfile\fR" 4
.IX Item "@file"
Read command-line options from \fIfile\fR.  The options read are
inserted in place of the original @\fIfile\fR option.  If \fIfile\fR
does not exist, or cannot be read, then the option will be treated
literally, and not removed.
.Sp
Options in \fIfile\fR are separated by whitespace.  A whitespace
character may be included in an option by surrounding the entire
option in either single or double quotes.  Any character (including a
backslash) may be included by prefixing the character to be included
with a backslash.  The \fIfile\fR may itself contain additional
@\fIfile\fR options; any such options will be processed recursively.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBreadelf\fR\|(1), and the Info entries for \fIbinutils\fR.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 1991\-2020 Free Software Foundation, Inc.
.PP
Permission is granted to copy, distribute and/or modify this document
under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.3
or any later version published by the Free Software Foundation;
with no Invariant Sections, with no Front-Cover Texts, and with no
Back-Cover Texts.  A copy of the license is included in the
section entitled \*(L"\s-1GNU\s0 Free Documentation License\*(R".