ftrace: add tracer called branch

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Impact: added new branch tracer

Currently the tracing of branch profiling (unlikelys and likelys hit)
is only activated by the iter_ctrl. This patch adds a tracer called
"branch" that will just trace the branch profiling. The advantage
of adding this tracer is that it can be added to the ftrace selftests
on startup.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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This commit is contained in:

Steven Rostedt 2008-11-12 15:24:24 -05:00 • committed by Ingo Molnar

parent 9f029e83e9

commit 80e5ea4506

3 changed files with 67 additions and 0 deletions

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2

kernel/trace/trace.h

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23

kernel/trace/trace_selftest.c

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42

kernel/trace/trace_unlikely.c

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