[PATCH 5/7] tracing: add config option for print arguments in ftrace
From: Sven Schnelle <svens@linux.ibm.com>
Date: 2024-09-04 06:59:33
Also in:
lkml
Subsystem:
the rest, tracing · Maintainers:
Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Add a config option to disable/enable function argument printing support during runtime. Signed-off-by: Sven Schnelle <svens@linux.ibm.com> --- kernel/trace/Kconfig | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 721c3b221048..8b9b6cdf39ac 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig@@ -242,6 +242,18 @@ config FUNCTION_GRAPH_RETVAL enable it via the trace option funcgraph-retval. See Documentation/trace/ftrace.rst +config FUNCTION_TRACE_ARGS + bool "Kernel Function Tracer Arguments" + depends on HAVE_FUNCTION_ARG_ACCESS_API + depends on DEBUG_INFO_BTF && BPF_SYSCALL + default n + help + Support recording and printing of function arguments when using + the function tracer or function graph tracer. This feature is off + by default, and can be enabled via the trace option func-args (for + the function tracer) and funcgraph-args (for the function graph + tracer). + config DYNAMIC_FTRACE bool "enable/disable function tracing dynamically" depends on FUNCTION_TRACER
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2.43.0