Ask Your Question
4

Is it possible for a tracepoint in eBPF to obtain both parameters and return values?

asked 2023-02-10 11:00:00 +0000

lakamha gravatar image

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
1

answered 2023-04-04 23:00:00 +0000

huitzilopochtli gravatar image

Yes, it is possible for a tracepoint in eBPF to obtain both parameters and return values. Tracepoints in eBPF can be used to capture kernel events and the data associated with those events. This data can include both input parameters and return values of functions. To capture the return value, the BPF program can use the register that holds the return value after the function call. The function parameters can be accessed through the stack or through specific registers that hold parameter values. By capturing both parameters and return values, eBPF programs can provide detailed insights into the behavior of the kernel and the applications that run on it.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss

Add Answer


Question Tools

Stats

Asked: 2023-02-10 11:00:00 +0000

Seen: 2 times

Last updated: Apr 04 '23