Use /proc/kallsyms for regex filtering #1540
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instead of /sys/kernel/debug/tracing/available_filter_functions. available_filter_functions does not contain all tracable functions, only those ftrace can use.
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refer: iovisor/bcc#1540 Signed-off-by: CFC4N <cfc4n.cs@gmail.com>
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refer: iovisor/bcc#1540 Signed-off-by: CFC4N <cfc4n.cs@gmail.com>
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Implements @palmtenor's suggestion, from #1537.
Use
/proc/kallsymsinstead of/sys/kernel/debug/tracing/available_filter_functions.available_filter_functionsdoes not contain all traceable functions,only those ftrace can use.
Not sure we should filter on
tandw...?Fixes #1537.
/cc @liu-song-6 @yonghong-song @palmtenor