Messages in this thread | | | Date | Mon, 26 Oct 2020 12:03:23 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH] selftests/ftrace: remove _do_fork() leftovers |
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On Sat, 24 Oct 2020 10:31:12 +0900 Masami Hiramatsu <mhiramat@kernel.org> wrote:
> > Perhaps we should have: > > > > # older kernels have do_fork, but newer kernels have kernel_clone > > echo kernel_clone >> set_ftrace_filter || echo *do_fork >> set_ftrace_filter > > Good catch. BTW, can we check the filter-bility by grep the pattern from set_ftrace_filter?
I think we need to use /proc/kallsyms, as the kprobe code should still work if function tracing is disabled, and the function filter files will not exist.
-- Steve
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