NAME¶

kpatch-build - build script

SYNOPSIS¶

kpatch-build [options] <patch file>

DESCRIPTION¶

This script takes a patch based on the version of the kernel currently running and creates a kernel module that will replace modified functions in the kernel such that the patched code takes effect.

This script currently only works on Fedora and will need to be adapted to work on other distros.

OPTIONS¶

-h|--help
Show this help message

-a|--archversion
Specify the kernel arch version

-r|--sourcerpm
Specify kernel source RPM

-s|--sourcedir
Specify kernel source directory

-c|--config
Specify kernel config file

-v|--vmlinux
Specify original vmlinux

-j|--jobs
Specify the number of make jobs

-t|--target
Specify custom kernel build targets

-n|--name
Specify the name of the kpatch module

-o|--output
Specify output folder

-d|--debug
Keep scratch files in /tmp
(can be specified multiple times)

--skip-cleanup
Skip post-build cleanup

--skip-gcc-check
Skips check that ensures that the system gcc version and
the gcc version that built the kernel match. Skipping this
check is not recommended, but is useful if the exact gcc
version is not available or is not easily installed. Use
only when confident that the two versions of gcc output
identical objects for a given target. Otherwise, use of
this option might result in unexpected changed objects
being detected.

SEE ALSO¶

kpatch(1)

BUGS¶

No known bugs.

AUTHOR¶

Udo Seidel (udoseidel@gmx.de)

COPYRIGHT¶

Copyright (C) 2014: Seth Jennings <sjenning@redhat.com>, Copyright (C) 2013,2014: Josh Poimboeuf <jpoimboe@redhat.com>