13–15 Nov 2023
America/New_York timezone

Function parameters with BTF

14 Nov 2023, 16:10
20m
"James River Salon A" (Omni Richmond Hotel)

"James River Salon A"

Omni Richmond Hotel

82
Tracing MC Tracing MC

Speakers

Mr Masami Hiramatsu (Google) Steven Rostedt

Description

Recently, function graph tracing has the new option of showing the return value of the function. Of course this could be producing some problems with functions that are void and the return is garbage. This could be fixed by using BTF.

Better yet, both function graph and the function tracer could possibly use BTF to show all arguments for all functions! But this would require a way to quickly look up the function's BTF values and a way to translate the BTF values into something that can be generically printed to the trace file.

Primary author

Co-author

Mr Masami Hiramatsu (Google)

Presentation materials

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