December 2023
Intermediate to advanced
228 pages
3h 33m
Japanese
Content preview from 入門 eBPF ―Linuxカーネルの可視化と機能拡張
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2章eBPFの「Hello World」
前章で筆者は、なぜeBPFが強力なのかについて説明しました。まだeBPFのプログラムを動かすことについて具体的なイメージが掴めていないかもしれませんが、問題ありません。本章でシンプルな「Hello World」プログラムを使って、より理解が進むようにしましょう。
ここまで読んで学んできたように、eBPFのアプリケーションを書くためにはいくつかのライブラリやフレームワークがあります。ウォームアップとして、プログラミングのしやすさという観点で、おそらく最も利用しやすいアプローチをお見せしましょう。それがBCC Pythonフレームワーク（https://github.com/iovisor/bcc）です。これにより、基本的なeBPFのプログラムを非常に簡単に書くことができます。今日、BCCは他のユーザに本番で利用してもらえるようなeBPFアプリケーションを作る際に、必ずしも採用できるアプローチではありませんが、みなさんが最初の一歩を踏み出すためには素晴らしいフレームワークです。詳しくは「5章 CO-RE、BTF、libbpf」で説明します。
![[注記]](/api/v2/epubs/urn:orm:book:9784814400560/files/images/note.png) |
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もし読者が自分でコードを試したい場合、GitHubリポジトリ（https://github.com/lizrice/learning-ebpf）の BCCのプロジェクトはhttps://github.com/iovisor/bccで確認でき、インストールの方法はINSTALL.md（ ... |
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