diff options
Diffstat (limited to 'kernel/trace/trace_selftest.c')
-rw-r--r-- | kernel/trace/trace_selftest.c | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c index 250e7f9bd2f0..155a415b3209 100644 --- a/kernel/trace/trace_selftest.c +++ b/kernel/trace/trace_selftest.c | |||
@@ -13,11 +13,9 @@ static inline int trace_valid_entry(struct trace_entry *entry) | |||
13 | case TRACE_WAKE: | 13 | case TRACE_WAKE: |
14 | case TRACE_STACK: | 14 | case TRACE_STACK: |
15 | case TRACE_PRINT: | 15 | case TRACE_PRINT: |
16 | case TRACE_SPECIAL: | ||
17 | case TRACE_BRANCH: | 16 | case TRACE_BRANCH: |
18 | case TRACE_GRAPH_ENT: | 17 | case TRACE_GRAPH_ENT: |
19 | case TRACE_GRAPH_RET: | 18 | case TRACE_GRAPH_RET: |
20 | case TRACE_KSYM: | ||
21 | return 1; | 19 | return 1; |
22 | } | 20 | } |
23 | return 0; | 21 | return 0; |
@@ -691,38 +689,6 @@ trace_selftest_startup_sched_switch(struct tracer *trace, struct trace_array *tr | |||
691 | } | 689 | } |
692 | #endif /* CONFIG_CONTEXT_SWITCH_TRACER */ | 690 | #endif /* CONFIG_CONTEXT_SWITCH_TRACER */ |
693 | 691 | ||
694 | #ifdef CONFIG_SYSPROF_TRACER | ||
695 | int | ||
696 | trace_selftest_startup_sysprof(struct tracer *trace, struct trace_array *tr) | ||
697 | { | ||
698 | unsigned long count; | ||
699 | int ret; | ||
700 | |||
701 | /* start the tracing */ | ||
702 | ret = tracer_init(trace, tr); | ||
703 | if (ret) { | ||
704 | warn_failed_init_tracer(trace, ret); | ||
705 | return ret; | ||
706 | } | ||
707 | |||
708 | /* Sleep for a 1/10 of a second */ | ||
709 | msleep(100); | ||
710 | /* stop the tracing. */ | ||
711 | tracing_stop(); | ||
712 | /* check the trace buffer */ | ||
713 | ret = trace_test_buffer(tr, &count); | ||
714 | trace->reset(tr); | ||
715 | tracing_start(); | ||
716 | |||
717 | if (!ret && !count) { | ||
718 | printk(KERN_CONT ".. no entries found .."); | ||
719 | ret = -1; | ||
720 | } | ||
721 | |||
722 | return ret; | ||
723 | } | ||
724 | #endif /* CONFIG_SYSPROF_TRACER */ | ||
725 | |||
726 | #ifdef CONFIG_BRANCH_TRACER | 692 | #ifdef CONFIG_BRANCH_TRACER |
727 | int | 693 | int |
728 | trace_selftest_startup_branch(struct tracer *trace, struct trace_array *tr) | 694 | trace_selftest_startup_branch(struct tracer *trace, struct trace_array *tr) |
@@ -755,56 +721,3 @@ trace_selftest_startup_branch(struct tracer *trace, struct trace_array *tr) | |||
755 | } | 721 | } |
756 | #endif /* CONFIG_BRANCH_TRACER */ | 722 | #endif /* CONFIG_BRANCH_TRACER */ |
757 | 723 | ||
758 | #ifdef CONFIG_KSYM_TRACER | ||
759 | static int ksym_selftest_dummy; | ||
760 | |||
761 | int | ||
762 | trace_selftest_startup_ksym(struct tracer *trace, struct trace_array *tr) | ||
763 | { | ||
764 | unsigned long count; | ||
765 | int ret; | ||
766 | |||
767 | /* start the tracing */ | ||
768 | ret = tracer_init(trace, tr); | ||
769 | if (ret) { | ||
770 | warn_failed_init_tracer(trace, ret); | ||
771 | return ret; | ||
772 | } | ||
773 | |||
774 | ksym_selftest_dummy = 0; | ||
775 | /* Register the read-write tracing request */ | ||
776 | |||
777 | ret = process_new_ksym_entry("ksym_selftest_dummy", | ||
778 | HW_BREAKPOINT_R | HW_BREAKPOINT_W, | ||
779 | (unsigned long)(&ksym_selftest_dummy)); | ||
780 | |||
781 | if (ret < 0) { | ||
782 | printk(KERN_CONT "ksym_trace read-write startup test failed\n"); | ||
783 | goto ret_path; | ||
784 | } | ||
785 | /* Perform a read and a write operation over the dummy variable to | ||
786 | * trigger the tracer | ||
787 | */ | ||
788 | if (ksym_selftest_dummy == 0) | ||
789 | ksym_selftest_dummy++; | ||
790 | |||
791 | /* stop the tracing. */ | ||
792 | tracing_stop(); | ||
793 | /* check the trace buffer */ | ||
794 | ret = trace_test_buffer(tr, &count); | ||
795 | trace->reset(tr); | ||
796 | tracing_start(); | ||
797 | |||
798 | /* read & write operations - one each is performed on the dummy variable | ||
799 | * triggering two entries in the trace buffer | ||
800 | */ | ||
801 | if (!ret && count != 2) { | ||
802 | printk(KERN_CONT "Ksym tracer startup test failed"); | ||
803 | ret = -1; | ||
804 | } | ||
805 | |||
806 | ret_path: | ||
807 | return ret; | ||
808 | } | ||
809 | #endif /* CONFIG_KSYM_TRACER */ | ||
810 | |||