diff --git a/usr.bin/elfctl/elfctl.1 b/usr.bin/elfctl/elfctl.1 index 23e2dabea49c..1f4014bb70d0 100644 --- a/usr.bin/elfctl/elfctl.1 +++ b/usr.bin/elfctl/elfctl.1 @@ -1,109 +1,109 @@ .\" Copyright 2019 The FreeBSD Foundation. .\" .\" This software was developed by Bora Ozarslan under sponsorship from .\" the FreeBSD Foundation. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' .\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" $FreeBSD$ .\" -.Dd January 22, 2021 +.Dd February 4, 2022 .Dt ELFCTL 1 .Os .Sh NAME .Nm elfctl .Nd change an ELF binary's feature control note .Sh SYNOPSIS .Nm .Op Fl h | Fl -help .Op Fl i .Op Fl l .Op Fl e Ar featurelist .Ar .Sh DESCRIPTION The .Nm utility modifies feature flags in the feature control note in an ELF binary. .Pp The options are as follows: .Bl -tag -width indent .It Fl h | Fl -help Print a usage message and exit. .It Fl i Ignore unknown feature flags in .Ar featurelist . .It Fl l List known ELF feature flags. .It Fl e Ar featurelist Edit features from the given comma separated list .Ar featurelist . .Ar featurelist starts with one of the three operations: .Dq Li + to turn on the features, .Dq Li - to turn off the features, .Dq Li = to only turn on the given features. A comma separated list of feature names or numeric values follows the operation. .El .Pp If .Fl e is not specified .Nm displays the status of each feature in the ELF note in each .Ar . .Sh EXIT STATUS Exit status is 0 on success, and 1 if the command fails if a file does not exist, is too short, or fails to find or edit features note. .Sh EXAMPLES The following is an example of a typical usage of the .Nm command: .Bd -literal -offset indent elfctl file -elfctl -e +aslr file +elfctl -e +noaslr file .Ed .Pp Features may be specified as numerical values: .Bd -literal -offset -indent elfctl -e =0x0001,0x0004 file .Ed .Pp Features may also be specified as a single combined value: .Bd -literal -offset -indent elfctl -e =0x5 file .Ed .Sh HISTORY .Nm first appeared in .Fx 12.2 . .Sh AUTHORS .Nm was written by .An Bora Ozarslan Mt borako.ozarslan@gmail.com under sponsorship from the .Fx Foundation.