diff options
Diffstat (limited to 'kernel/trace/Kconfig')
| -rw-r--r-- | kernel/trace/Kconfig | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 2aec9376825f..75407d5dc83a 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -623,12 +623,30 @@ config TRACING_MAP generally used outside of that context, and is normally selected by tracers that use it. +config SYNTH_EVENTS + bool "Synthetic trace events" + select TRACING + select DYNAMIC_EVENTS + default n + help + Synthetic events are user-defined trace events that can be + used to combine data from other trace events or in fact any + data source. Synthetic events can be generated indirectly + via the trace() action of histogram triggers or directly + by way of an in-kernel API. + + See Documentation/trace/events.rst or + Documentation/trace/histogram.rst for details and examples. + + If in doubt, say N. + config HIST_TRIGGERS bool "Histogram triggers" depends on ARCH_HAVE_NMI_SAFE_CMPXCHG select TRACING_MAP select TRACING select DYNAMIC_EVENTS + select SYNTH_EVENTS default n help Hist triggers allow one or more arbitrary trace event fields @@ -824,7 +842,7 @@ config PREEMPTIRQ_DELAY_TEST config SYNTH_EVENT_GEN_TEST tristate "Test module for in-kernel synthetic event generation" - depends on HIST_TRIGGERS + depends on SYNTH_EVENTS help This option creates a test module to check the base functionality of in-kernel synthetic event definition and |