ftrace: add nop tracer

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A no-op tracer which can serve two purposes:

 1. A template for development of a new tracer.
 2. A convenient way to see ftrace_printk() calls without
    an irrelevant trace making the output messy.

[ mingo@elte.hu: resolved conflicts ]
Signed-off-by: Steven Noonan <steven@uplinklabs.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Steven Noonan 2008-09-19 03:06:43 -07:00 • committed by Ingo Molnar

parent 5bf9a1ee35

commit fb1b6d8b51

5 changed files with 89 additions and 0 deletions

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10

kernel/trace/Kconfig

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1

kernel/trace/Makefile

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4

kernel/trace/trace.h

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65

kernel/trace/trace_nop.c

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9

kernel/trace/trace_selftest.c

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