man(1)

💖 kpatch-build — the manual, but make it make sense 💖

okay bestie, so this is the page for kpatch-build(1) — yeah, the manual name is right there in the header, and honestly? iconic of it. it's a build script, it lives in the kpatch-build man page, and it's about to be your new hyperfixation. no cap. ✨

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🌸 NAME 🌸

kpatch-build — it's a build script, babes. that's the whole vibe.

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✨ SYNOPSIS ✨

kpatch-build [options] <patch file>

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🦋 DESCRIPTION 🦋

so here's the tea, bestie 💅 — this script takes a patch that's based on the version of the kernel you're currently running, and it builds a kernel module out of it. that module will replace the modified functions in the kernel so the patched code actually takes effect. it's giving "surgery but make it a glow-up". slay. 🔥

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🎀 OPTIONS 🎀

• -h, --help — shows this help message. the classic. the moment. 🫶
• -a, --archversion — specify the kernel arch version. say it with your chest. 💅
• -r, --sourcerpm — specify the kernel source RPM. yes, RPM, as in the package, keep up bestie. 💖
• -s, --sourcedir — specify the kernel source directory. where the kernel source lives, obviously. 📁
• -c, --config — specify the kernel config file. 👑
• -v, --vmlinux — specify the original vmlinux. the O.G. the blueprint. ⭐
• -j, --jobs — specify the number of make jobs. parallelism, because we do NOT have time to wait. ⚡
• -t, --target — specify custom kernel build targets. go off, custom queen. 🌈
• -n, --name — specify the name of the kpatch module. naming rights! so powerful! 🎀
• -o, --output — specify the output folder. 📂
• -d, --debug — keeps the scratch files in /tmp. and get this — it can be specified multiple times. stack it, bestie. 🔁
• --oot-module — enables patching an out-of-tree module, and you specify the current version of the module. out-of-tree, out-of-mind. 🌳
• --oot-module-src — specify the out-of-tree module source directory. 🌿
• -R, --non-replace — disables the replace flag of KLP. fyi the replace flag is on by default, so this is the "actually, no" button. 🙈
• --skip-cleanup — skips the post-build cleanup. leave the mess, it's a look. 💀
• --skip-compiler-check — skips the check that makes sure the system compiler version and the compiler version that built the kernel actually match.

🚨 okay bestie, WARNING TIME, this one is NOT a cute little shortcut. skipping this check is not recommended. it is useful if the exact compiler version isn't available or isn't easily installed — but use it only when you're confident that the two versions of compiler output identical objects for a given target. otherwise, using this option might result in unexpected changed objects being detected. like, unexpected. changed. objects. detected. no cap. 😭

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🫶 SEE ALSO 🫶

• kpatch(1) — go read that one too, bestie, it's the whole family. 💜

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🐛 BUGS 🐛

no known bugs. periodt. ✨

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👑 AUTHOR 👑

Udo Seidel (udoseidel@gmx.de) — we stan. 💅

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⭐ COPYRIGHT ⭐

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

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okay and that's the whole page!! 🎉 this is version 1.0, dated 23 Mar 2014, and it's living in the man(1) manual section. love that for it. byeee, go build something, you've got this 💖🦋🌸✨