Commit 0dd1274a authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt (Google)
Browse files

tracing: Have eprobes have their own config option 

Eprobes were added in 5.15 and were selected whenever any of the other
probe events were selected. If kprobe events were enabled (which it is by
default if kprobes are enabled) it would enable eprobe events as well. The
same for uprobes and fprobes.

Have eprobes have its own config and it gets enabled by default if tracing
is enabled.

Link: https://lore.kernel.org/all/20250729102636.b7cce553e7cc263722b12365@kernel.org/

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/20250730140945.360286733@kernel.org


Suggested-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
parent 1a967e92

kernel/trace/Kconfig

+14 −0
Original line number Diff line number Diff line
@@ -792,6 +792,20 @@ config UPROBE_EVENTS 
	  This option is required if you plan to use perf-probe subcommand

	  of perf tools on user space applications.



config EPROBE_EVENTS

	bool "Enable event-based dynamic events"

	depends on TRACING

	depends on HAVE_REGS_AND_STACK_ACCESS_API

	select PROBE_EVENTS

	select DYNAMIC_EVENTS

	default y

	help

	  Eprobes are dynamic events that can be placed on other existing

	  events. It can be used to limit what fields are recorded in

	  an event or even dereference a field of an event. It can

	  convert the type of an event field. For example, turn an

	  address into a string.



config BPF_EVENTS

	depends on BPF_SYSCALL

	depends on (KPROBE_EVENTS || UPROBE_EVENTS) && PERF_EVENTS

kernel/trace/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -82,7 +82,7 @@ obj-$(CONFIG_EVENT_TRACING) += trace_event_perf.o 
endif

obj-$(CONFIG_EVENT_TRACING) += trace_events_filter.o

obj-$(CONFIG_EVENT_TRACING) += trace_events_trigger.o

obj-$(CONFIG_PROBE_EVENTS) += trace_eprobe.o

obj-$(CONFIG_EPROBE_EVENTS) += trace_eprobe.o

obj-$(CONFIG_TRACE_EVENT_INJECT) += trace_events_inject.o

obj-$(CONFIG_SYNTH_EVENTS) += trace_events_synth.o

obj-$(CONFIG_HIST_TRIGGERS) += trace_events_hist.o