name : verify-functiongraph.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 "tracing_on" "0" compare_file "current_tracer" "function_graph" compare_file_partial "events/kprobes/start_event/enable" "1" compare_file_partial "events/kprobes/start_event/trigger" "traceon" file_contains "kprobe_events" 'start_event.*pci_proc_init' compare_file_partial "events/kprobes/end_event/enable" "1" compare_file_partial "events/kprobes/end_event/trigger" "traceoff" file_contains "kprobe_events" '^r.*end_event.*pci_proc_init' exit 0