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A comment on List Any Linux Tracepoint with Their Arguments, Datatypes and Related Structs.

Re:List Any Linux Tracepoint with Their Arguments, Datatypes... by seneca on Tuesday February 04, 2025 @12:37PM (#42935784)
Very handy tool! I love eBPF, but playing with it you quickly get into cryptic kernel internals territory. Tools like this are a great way to smooth out the experience. Well done!
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Re:List Any Linux Tracepoint with Their Arguments, Datatypes... by tptacek on Tuesday February 04, 2025 @02:07PM (#42937097)
In fairness that is also one of the awesome things about eBPF. My overall comprehension of the kernel has risen dramatically since I started using it.
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Re:List Any Linux Tracepoint with Their Arguments, Datatypes... by ddelnano on Tuesday February 04, 2025 @03:51PM (#42938447)
Definitely agree. As I've looked into instrumentation/tracing, it has helped me more fearlessly look at the kernel. Ftrace is another tool that's helped me level up as well (https://blog.px.dev/ebpf-probes-and-you/)
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Re:List Any Linux Tracepoint with Their Arguments, Datatypes... by tanelpoder on Tuesday February 04, 2025 @04:12PM (#42938791)
Yeah, ftrace is great and the trace-cmd frontend too. Another swiss-army-knife type of a tool, like perf... and is also available in older kernels.

One thing that I had missed was function call argument tracing, but looks like ftrace will soon have it too:

https://lwn.net/Articles/1003386/

https://lpc.events/event/11/contributions/1106/attachments/7...

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