diff options
Diffstat (limited to 'init')
-rw-r--r-- | init/Kconfig | 1 | ||||
-rw-r--r-- | init/main.c | 35 |
2 files changed, 21 insertions, 15 deletions
diff --git a/init/Kconfig b/init/Kconfig index f763762d544a..f291f086caa1 100644 --- a/init/Kconfig +++ b/init/Kconfig | |||
@@ -808,6 +808,7 @@ config TRACEPOINTS | |||
808 | 808 | ||
809 | config MARKERS | 809 | config MARKERS |
810 | bool "Activate markers" | 810 | bool "Activate markers" |
811 | depends on TRACEPOINTS | ||
811 | help | 812 | help |
812 | Place an empty function call at each marker site. Can be | 813 | Place an empty function call at each marker site. Can be |
813 | dynamically changed for a probe function. | 814 | dynamically changed for a probe function. |
diff --git a/init/main.c b/init/main.c index db843bff5732..17e9757bfde2 100644 --- a/init/main.c +++ b/init/main.c | |||
@@ -63,6 +63,7 @@ | |||
63 | #include <linux/signal.h> | 63 | #include <linux/signal.h> |
64 | #include <linux/idr.h> | 64 | #include <linux/idr.h> |
65 | #include <linux/ftrace.h> | 65 | #include <linux/ftrace.h> |
66 | #include <trace/boot.h> | ||
66 | 67 | ||
67 | #include <asm/io.h> | 68 | #include <asm/io.h> |
68 | #include <asm/bugs.h> | 69 | #include <asm/bugs.h> |
@@ -704,31 +705,35 @@ core_param(initcall_debug, initcall_debug, bool, 0644); | |||
704 | int do_one_initcall(initcall_t fn) | 705 | int do_one_initcall(initcall_t fn) |
705 | { | 706 | { |
706 | int count = preempt_count(); | 707 | int count = preempt_count(); |
707 | ktime_t delta; | 708 | ktime_t calltime, delta, rettime; |
708 | char msgbuf[64]; | 709 | char msgbuf[64]; |
709 | struct boot_trace it; | 710 | struct boot_trace_call call; |
711 | struct boot_trace_ret ret; | ||
710 | 712 | ||
711 | if (initcall_debug) { | 713 | if (initcall_debug) { |
712 | it.caller = task_pid_nr(current); | 714 | call.caller = task_pid_nr(current); |
713 | printk("calling %pF @ %i\n", fn, it.caller); | 715 | printk("calling %pF @ %i\n", fn, call.caller); |
714 | it.calltime = ktime_get(); | 716 | calltime = ktime_get(); |
717 | trace_boot_call(&call, fn); | ||
718 | enable_boot_trace(); | ||
715 | } | 719 | } |
716 | 720 | ||
717 | it.result = fn(); | 721 | ret.result = fn(); |
718 | 722 | ||
719 | if (initcall_debug) { | 723 | if (initcall_debug) { |
720 | it.rettime = ktime_get(); | 724 | disable_boot_trace(); |
721 | delta = ktime_sub(it.rettime, it.calltime); | 725 | rettime = ktime_get(); |
722 | it.duration = (unsigned long long) delta.tv64 >> 10; | 726 | delta = ktime_sub(rettime, calltime); |
727 | ret.duration = (unsigned long long) ktime_to_ns(delta) >> 10; | ||
728 | trace_boot_ret(&ret, fn); | ||
723 | printk("initcall %pF returned %d after %Ld usecs\n", fn, | 729 | printk("initcall %pF returned %d after %Ld usecs\n", fn, |
724 | it.result, it.duration); | 730 | ret.result, ret.duration); |
725 | trace_boot(&it, fn); | ||
726 | } | 731 | } |
727 | 732 | ||
728 | msgbuf[0] = 0; | 733 | msgbuf[0] = 0; |
729 | 734 | ||
730 | if (it.result && it.result != -ENODEV && initcall_debug) | 735 | if (ret.result && ret.result != -ENODEV && initcall_debug) |
731 | sprintf(msgbuf, "error code %d ", it.result); | 736 | sprintf(msgbuf, "error code %d ", ret.result); |
732 | 737 | ||
733 | if (preempt_count() != count) { | 738 | if (preempt_count() != count) { |
734 | strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf)); | 739 | strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf)); |
@@ -742,7 +747,7 @@ int do_one_initcall(initcall_t fn) | |||
742 | printk("initcall %pF returned with %s\n", fn, msgbuf); | 747 | printk("initcall %pF returned with %s\n", fn, msgbuf); |
743 | } | 748 | } |
744 | 749 | ||
745 | return it.result; | 750 | return ret.result; |
746 | } | 751 | } |
747 | 752 | ||
748 | 753 | ||
@@ -883,7 +888,7 @@ static int __init kernel_init(void * unused) | |||
883 | * we're essentially up and running. Get rid of the | 888 | * we're essentially up and running. Get rid of the |
884 | * initmem segments and start the user-mode stuff.. | 889 | * initmem segments and start the user-mode stuff.. |
885 | */ | 890 | */ |
886 | stop_boot_trace(); | 891 | |
887 | init_post(); | 892 | init_post(); |
888 | return 0; | 893 | return 0; |
889 | } | 894 | } |