X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=kernel%2Ftrace%2FKconfig;h=263e9e6bbd60912132ba18077c0fa0d66d7e1ffb;hb=16b237dc44c716dbd9aeee4ab8aa9c33a62d5998;hp=6430016b98e8fcb16dea44d53c77c53ef4753e88;hpb=6cd8a4bb2f97527a9ceb30bc77ea4e959c6a95e3;p=mv-sheeva.git

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 6430016b98e..263e9e6bbd6 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -4,16 +4,20 @@
 config HAVE_FTRACE
 	bool
 
+config HAVE_DYNAMIC_FTRACE
+	bool
+
 config TRACER_MAX_TRACE
 	bool
 
 config TRACING
 	bool
 	select DEBUG_FS
+	select STACKTRACE
 
 config FTRACE
 	bool "Kernel Function Tracer"
-	depends on DEBUG_KERNEL && HAVE_FTRACE
+	depends on HAVE_FTRACE
 	select FRAME_POINTER
 	select TRACING
 	select CONTEXT_SWITCH_TRACER
@@ -31,6 +35,7 @@ config IRQSOFF_TRACER
 	default n
 	depends on TRACE_IRQFLAGS_SUPPORT
 	depends on GENERIC_TIME
+	depends on HAVE_FTRACE
 	select TRACE_IRQFLAGS
 	select TRACING
 	select TRACER_MAX_TRACE
@@ -53,6 +58,7 @@ config PREEMPT_TRACER
 	default n
 	depends on GENERIC_TIME
 	depends on PREEMPT
+	depends on HAVE_FTRACE
 	select TRACING
 	select TRACER_MAX_TRACE
 	help
@@ -69,9 +75,17 @@ config PREEMPT_TRACER
 	  enabled. This option and the irqs-off timing option can be
 	  used together or separately.)
 
+config SYSPROF_TRACER
+	bool "Sysprof Tracer"
+	depends on X86
+	select TRACING
+	help
+	  This tracer provides the trace needed by the 'Sysprof' userspace
+	  tool.
+
 config SCHED_TRACER
 	bool "Scheduling Latency Tracer"
-	depends on DEBUG_KERNEL
+	depends on HAVE_FTRACE
 	select TRACING
 	select CONTEXT_SWITCH_TRACER
 	select TRACER_MAX_TRACE
@@ -81,10 +95,41 @@ config SCHED_TRACER
 
 config CONTEXT_SWITCH_TRACER
 	bool "Trace process context switches"
-	depends on DEBUG_KERNEL
+	depends on HAVE_FTRACE
 	select TRACING
 	select MARKERS
 	help
 	  This tracer gets called from the context switch and records
 	  all switching of tasks.
 
+config DYNAMIC_FTRACE
+	bool "enable/disable ftrace tracepoints dynamically"
+	depends on FTRACE
+	depends on HAVE_DYNAMIC_FTRACE
+	default y
+	help
+         This option will modify all the calls to ftrace dynamically
+	 (will patch them out of the binary image and replaces them
+	 with a No-Op instruction) as they are called. A table is
+	 created to dynamically enable them again.
+
+	 This way a CONFIG_FTRACE kernel is slightly larger, but otherwise
+	 has native performance as long as no tracing is active.
+
+	 The changes to the code are done by a kernel thread that
+	 wakes up once a second and checks to see if any ftrace calls
+	 were made. If so, it runs stop_machine (stops all CPUS)
+	 and modifies the code to jump over the call to ftrace.
+
+config FTRACE_SELFTEST
+	bool
+
+config FTRACE_STARTUP_TEST
+	bool "Perform a startup test on ftrace"
+	depends on TRACING
+	select FTRACE_SELFTEST
+	help
+	  This option performs a series of startup tests on ftrace. On bootup
+	  a series of tests are made to verify that the tracer is
+	  functioning properly. It will do tests on all the configured
+	  tracers of ftrace.