tracing: Move synthetic events to a separate file

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With the addition of the in-kernel synthetic event API, synthetic
events are no longer specifically tied to the histogram triggers.

The synthetic event code is also making trace_event_hist.c very
bloated, so for those reasons, move it to a separate file,
trace_events_synth.c, along with a new trace_synth.h header file.

Because synthetic events are now independent from hist triggers, add a
new CONFIG_SYNTH_EVENTS config option, and have CONFIG_HIST_TRIGGERS
select it, and have CONFIG_SYNTH_EVENT_GEN_TEST depend on it.

Link: http://lkml.kernel.org/r/4d1fa1f85ed5982706ac44844ac92451dcb04715.1590693308.git.zanussi@kernel.org

Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

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This commit is contained in:

Tom Zanussi 2020-05-28 14:32:37 -05:00 • committed by Steven Rostedt (VMware)

parent 5bbf959de4

commit 726721a518

5 changed files with 1989 additions and 1928 deletions

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20

kernel/trace/Kconfig

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1

kernel/trace/Makefile

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1787

kernel/trace/trace_events_hist.c

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1789

kernel/trace/trace_events_synth.c

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36

kernel/trace/trace_synth.h

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