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tracing/ftrace: give an entry on the config for boot tracer

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Bring the entry to choose the boot tracer on the kernel config.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Frédéric Weisbecker 2008-09-23 11:36:20 +01:00 committed by Ingo Molnar
parent b5ad384e79
commit 1f5c2abbde
2 changed files with 13 additions and 0 deletions
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12
kernel/trace/Kconfig
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@ -116,6 +116,18 @@ config CONTEXT_SWITCH_TRACER
This tracer gets called from the context switch and records
all switching of tasks.
config BOOT_TRACER
bool "Trace boot initcalls"
depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACING
help
This tracer helps developers to optimize boot times: it records
the timings of the initcalls. Its aim is to be parsed by the
/scripts/bootgraph.pl tool to produce pretty graphics about
boot inefficiencies, giving a visual representation of the
delays during initcalls.
config STACK_TRACER
bool "Trace max stack"
depends on HAVE_FTRACE

1
kernel/trace/Makefile
View File

@ -22,5 +22,6 @@ obj-$(CONFIG_SCHED_TRACER) += trace_sched_wakeup.o
obj-$(CONFIG_NOP_TRACER) += trace_nop.o
obj-$(CONFIG_STACK_TRACER) += trace_stack.o
obj-$(CONFIG_MMIOTRACE) += trace_mmiotrace.o
obj-$(CONFIG_BOOT_TRACER) += trace_boot.o
libftrace-y := ftrace.o