1*4882a593Smuzhiyun#!/bin/bash 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunTR=/sys/kernel/debug/tracing/ 4*4882a593Smuzhiyunclear_trace() { # reset trace output 5*4882a593Smuzhiyun echo > $TR/trace 6*4882a593Smuzhiyun} 7*4882a593Smuzhiyun 8*4882a593Smuzhiyundisable_tracing() { # stop trace recording 9*4882a593Smuzhiyun echo 0 > $TR/tracing_on 10*4882a593Smuzhiyun} 11*4882a593Smuzhiyun 12*4882a593Smuzhiyunenable_tracing() { # start trace recording 13*4882a593Smuzhiyun echo 1 > $TR/tracing_on 14*4882a593Smuzhiyun} 15*4882a593Smuzhiyun 16*4882a593Smuzhiyunreset_tracer() { # reset the current tracer 17*4882a593Smuzhiyun echo nop > $TR/current_tracer 18*4882a593Smuzhiyun} 19*4882a593Smuzhiyun 20*4882a593Smuzhiyundisable_tracing 21*4882a593Smuzhiyunclear_trace 22*4882a593Smuzhiyun 23*4882a593Smuzhiyunecho "" > $TR/set_ftrace_filter 24*4882a593Smuzhiyunecho '*printk* *console* *wake* *serial* *lock*' > $TR/set_ftrace_notrace 25*4882a593Smuzhiyun 26*4882a593Smuzhiyunecho "bpf_prog_test*" > $TR/set_graph_function 27*4882a593Smuzhiyunecho "" > $TR/set_graph_notrace 28*4882a593Smuzhiyun 29*4882a593Smuzhiyunecho function_graph > $TR/current_tracer 30*4882a593Smuzhiyun 31*4882a593Smuzhiyunenable_tracing 32*4882a593Smuzhiyun./test_progs -t fentry 33*4882a593Smuzhiyun./test_progs -t fexit 34*4882a593Smuzhiyundisable_tracing 35*4882a593Smuzhiyunclear_trace 36*4882a593Smuzhiyun 37*4882a593Smuzhiyunreset_tracer 38*4882a593Smuzhiyun 39*4882a593Smuzhiyunexit 0 40