---

yaml
---
r: 116647
b: refs/heads/master
c: 1f5c2ab
h: refs/heads/master
i:
  116645: e20c8e3
  116643: 3000a53
  116639: e9579ac
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b5ad384e79add1d87fff54070000dadcf218ffab
+refs/heads/master: 1f5c2abbdeb2bb07b20c6a66bfecefe6c867b1ee

trunk/kernel/trace/Kconfig

@@ -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

trunk/kernel/trace/Makefile

@@ -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