mirror of
https://github.com/freebsd/freebsd-src
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ae500c1ff8
Highlights: - Make sure that only TLS sections are sorted into TLS segment. - Fixed multiple errors in "Section to Segment mapping". - Man page updates - ar improvements - elfcopy: avoid filter_reloc uninitialized variable for rela - elfcopy: avoid stripping relocations from static binaries - readelf: avoid printing directory in front of absolute path - readelf: add NT_FREEBSD_FEATURE_CTL FreeBSD note type - test improvements NOTES: Some of these changes originated in FreeBSD and simply reduce diffs between contrib and vendor. ELF Tool Chain ar is not (currently) used in FreeBSD, and there are improvements in both FreeBSD and ELF Tool Chain ar that are not in the other. Sponsored by: The FreeBSD Foundation
126 lines
3 KiB
Groff
126 lines
3 KiB
Groff
.\" Copyright (c) 2011 Joseph Koshy. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY JOSEPH KOSHY ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL JOSEPH KOSHY BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: mcs.1 3642 2018-10-14 14:24:28Z jkoshy $
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.\"
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.Dd November 29, 2011
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.Dt MCS 1
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.Os
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.Sh NAME
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.Nm mcs
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.Nd manipulate the comment section of an ELF object
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.Sh SYNOPSIS
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.Nm
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.Op Fl a Ar string
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.Op Fl c
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.Op Fl n Ar name
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.Op Fl p
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.Ar
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.Nm
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.Fl d
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.Op Fl n Ar name
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.Ar
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.Nm
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.Fl h | Fl -help
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.Nm
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.Fl V | Fl -version
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.Sh DESCRIPTION
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The
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.Nm
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utility is used to manipulate comment sections in an ELF object.
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If a command-line argument
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.Ar file
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names an
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.Xr ar 1
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archive, then
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.Nm
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will operate on the ELF objects contained in the archive.
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.Pp
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By default
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.Nm
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operates on the ELF section named
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.Dq .comment .
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This may be changed using the
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.Fl n
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option.
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.Pp
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The
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.Nm
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utility supports the following options:
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.Bl -tag -width ".Fl a Ar string"
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.It Fl a Ar string
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Append the text in
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.Ar string
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to the comment section.
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This option may be specified multiple times.
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.It Fl c
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Compress the comment section by removing duplicate entries.
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.It Fl d
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Delete the comment section from the ELF object.
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.It Fl h | Fl -help
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Display a usage message and exit.
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.It Fl n Ar name
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Operate on the section named
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.Ar name .
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.It Fl p
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Print the contents of the comment section.
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This step is taken after actions specified by the
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.Fl a
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and
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.Fl c
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options (if any) are completed.
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.It Fl V | Fl -version
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Print a version identifier and exit.
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.El
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.Sh COMPATIBILITY
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The behavior of the
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.Nm
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utility differs from its SVR4 counterpart in the following ways:
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.Bl -bullet -compact
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.It
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If the
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.Fl d
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option is specified, it causes any
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.Fl a ,
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.Fl c
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and
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.Fl p
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options present to be ignored.
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.It
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The order of options
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.Fl a ,
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.Fl c ,
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.Fl d ,
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and
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.Fl p
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on the command line is not significant.
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.El
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.Sh DIAGNOSTICS
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.Ex -std
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.Sh SEE ALSO
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.Xr ar 1 ,
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.Xr elfcopy 1 ,
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.Xr ld 1 ,
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.Xr nm 1 ,
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.Xr strip 1
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