kernel/bpf-developer-tutorial
1
0
Fork 0
mirror of https://github.com/eunomia-bpf/bpf-developer-tutorial.git synced 2026-02-03 10:14:44 +08:00
Code Issues Packages Projects Releases Wiki Activity

Deploying to gh-pages from @ eunomia-bpf/bpf-developer-tutorial@fcad798022 🚀

Browse Source
This commit is contained in:
yunwei37
2023-04-07 03:07:13 +00:00
parent 85d01218cc
commit ba4f135551
8 changed files with 12 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
11-bootstrap/index.html
View File

@@ -277,7 +277,7 @@ int handle_exit(struct trace_event_raw_sched_process_template* ctx)
<p>程序还定义了一个名为handle_exit的SEC函数，它被附加到跟踪进程退出的BPF程序上。该函数会在确定PID和TID后计算进程的生命周期，然后根据min_duration_ns的值决定是否发出退出事件。如果进程的生命周期足够长，则会从BPF ringbuf保留样本并使用数据填充样本，然后将其提交给用户空间进行后处理。</p>
<p>最后，主函数调用bpf_ringbuf_poll来轮询BPF ringbuf，并在接收到新的事件时处理该事件。这个函数会持续运行，直到全局标志exiting被设置为true，此时它会清理资源并退出。</p>
<p>编译运行上述代码：</p>
<pre><code class="language-console">$ ecc bootstrap.bpf.c
<pre><code class="language-console">$ ecc bootstrap.bpf.c bootstrap.h
Compiling bpf object...
Packing ebpf object and config into package.json...
$ sudo ecli run package.json