kernel/configs/fedora/generic/CONFIG_SYNTH_EVENTS

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# CONFIG_SYNTH_EVENTS:
#
# 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.
#
# Symbol: SYNTH_EVENTS [=n]
# Type : bool
# Defined at kernel/trace/Kconfig:608
# Prompt: Synthetic trace events
# Depends on: TRACING_SUPPORT [=y] && FTRACE [=y]
# Location:
# -> Kernel hacking
# -> Tracers (FTRACE [=y])
# Selects: TRACING [=y] && DYNAMIC_EVENTS [=y]
# Selected by [n]:
# - HIST_TRIGGERS [=n] && TRACING_SUPPORT [=y] && FTRACE [=y] && ARCH_HAVE_NMI_SAFE_CMPXCHG [=n]
#
#
#
CONFIG_SYNTH_EVENTS=y