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
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
7章eBPFのプログラムとアタッチメントタイプ
ここまでの章で確認したたくさんのeBPFプログラムのサンプルコードは、さまざまなタイプのイベントにアタッチしていました。kprobeにアタッチしたものがありましたし、XDPプログラムが新しく到着したネットワークパケットを扱っている場合もありました。他にもアタッチできるイベントはいろいろあります。本章ではその他のプログラムタイプと、それらがどのようにさまざまなイベントにアタッチできるのかについて詳しく見ていきましょう。
![[注記]](/api/v2/epubs/urn:orm:book:9784814400560/files/images/note.png) |
|
GitHubリポジトリ（https://github.com/lizrice/learning-ebpf）にあるコードや手順を用いて、本章の例をビルドして実行することができます。本章のコードは 本書執筆時点で、サンプルコードの中にはARMのプロセッサでは動作しないものもあります。 |
現在、uapi/linux/bpf.h（https://oreil.ly/6dNIW）ヘッダにはおおよそ30のプログラムタイプと、40を超える数のアタッチメントタイプが列挙されています。アタッチメントタイプは、プログラムをどこにアタッチするかの詳細を定義しています。多くのプログラムタイプにおいて、アタッチメントタイプはプログラムタイプから推測可能です。その一方で、カーネル内のさまざまな場所にアタッチが可能なプログラムタイプもあります。この場合はアタッチメントタイプも同時に指定されなければなりません。 ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.