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Diffstat (limited to 'kernel/trace/Kconfig')
-rw-r--r--kernel/trace/Kconfig31
1 files changed, 16 insertions, 15 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 1cb3e1f616a..33dbefd471e 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -1,13 +1,13 @@
#
-# Architectures that offer an FTRACE implementation should select HAVE_FTRACE:
+# Architectures that offer an FUNCTION_TRACER implementation should
+# select HAVE_FUNCTION_TRACER:
#
config NOP_TRACER
bool
-config HAVE_FTRACE
+config HAVE_FUNCTION_TRACER
bool
- select NOP_TRACER
config HAVE_DYNAMIC_FTRACE
bool
@@ -25,12 +25,15 @@ config TRACING
bool
select DEBUG_FS
select RING_BUFFER
- select STACKTRACE
+ select STACKTRACE if STACKTRACE_SUPPORT
select TRACEPOINTS
+ select NOP_TRACER
-config FTRACE
+menu "Tracers"
+
+config FUNCTION_TRACER
bool "Kernel Function Tracer"
- depends on HAVE_FTRACE
+ depends on HAVE_FUNCTION_TRACER
depends on DEBUG_KERNEL
select FRAME_POINTER
select TRACING
@@ -49,7 +52,6 @@ config IRQSOFF_TRACER
default n
depends on TRACE_IRQFLAGS_SUPPORT
depends on GENERIC_TIME
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACE_IRQFLAGS
select TRACING
@@ -73,7 +75,6 @@ config PREEMPT_TRACER
default n
depends on GENERIC_TIME
depends on PREEMPT
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACING
select TRACER_MAX_TRACE
@@ -101,7 +102,6 @@ config SYSPROF_TRACER
config SCHED_TRACER
bool "Scheduling Latency Tracer"
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACING
select CONTEXT_SWITCH_TRACER
@@ -112,7 +112,6 @@ config SCHED_TRACER
config CONTEXT_SWITCH_TRACER
bool "Trace process context switches"
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACING
select MARKERS
@@ -122,9 +121,9 @@ config CONTEXT_SWITCH_TRACER
config BOOT_TRACER
bool "Trace boot initcalls"
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACING
+ select CONTEXT_SWITCH_TRACER
help
This tracer helps developers to optimize boot times: it records
the timings of the initcalls and traces key events and the identity
@@ -141,9 +140,9 @@ config BOOT_TRACER
config STACK_TRACER
bool "Trace max stack"
- depends on HAVE_FTRACE
+ depends on HAVE_FUNCTION_TRACER
depends on DEBUG_KERNEL
- select FTRACE
+ select FUNCTION_TRACER
select STACKTRACE
help
This special tracer records the maximum stack footprint of the
@@ -160,7 +159,7 @@ config STACK_TRACER
config DYNAMIC_FTRACE
bool "enable/disable ftrace tracepoints dynamically"
- depends on FTRACE
+ depends on FUNCTION_TRACER
depends on HAVE_DYNAMIC_FTRACE
depends on DEBUG_KERNEL
default y
@@ -170,7 +169,7 @@ config DYNAMIC_FTRACE
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
+ This way a CONFIG_FUNCTION_TRACER 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
@@ -195,3 +194,5 @@ config FTRACE_STARTUP_TEST
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.
+
+endmenu