name : verify-tracing.sh #!/bin/sh cd /sys/kernel/tracing compare_file() { file="$1" val="$2" content=`cat $file` if [ "$content" != "$val" ]; then echo "FAILED: $file has '$content', expected '$val'" exit 1 fi } compare_file_partial() { file="$1" val="$2" content=`cat $file | sed -ne "/^$val/p"` if [ -z "$content" ]; then echo "FAILED: $file does not contain '$val'" cat $file exit 1 fi } file_contains() { file=$1 val="$2" if ! grep -q "$val" $file ; then echo "FAILED: $file does not contain $val" cat $file exit 1 fi } compare_mask() { file=$1 val="$2" content=`cat $file | sed -ne "/^[0 ]*$val/p"` if [ -z "$content" ]; then echo "FAILED: $file does not have mask '$val'" cat $file exit 1 fi } compare_file "current_tracer" "function_graph" compare_file "options/event-fork" "1" compare_file "options/sym-addr" "1" compare_file "options/stacktrace" "1" compare_file "buffer_size_kb" "1024" file_contains "snapshot" "Snapshot is allocated" file_contains "trace_clock" '\[global\]' compare_file "events/initcall/enable" "1" compare_file "events/task/task_newtask/enable" "1" compare_file "events/sched/sched_process_exec/filter" "pid < 128" compare_file "events/kprobes/enable" "1" compare_file "instances/bar/events/kprobes/myevent/enable" "1" compare_file "instances/bar/events/kprobes/myevent2/enable" "1" compare_file "instances/bar/events/kprobes/myevent3/enable" "1" compare_file "instances/foo/current_tracer" "function" compare_file "instances/foo/tracing_on" "0" compare_file "/proc/sys/kernel/ftrace_dump_on_oops" "2" compare_file "/proc/sys/kernel/traceoff_on_warning" "1" exit 0