ftrace script

#!/bin/bash


echo 0 > /sys/kernel/debug/tracing/tracing_on
echo "ftrace off"
sleep 3
cp /sys/kernel/debug/tracing/trace .
mv trace ftrace_log

 

 

setter

#!/bin/bash


echo 0 > /sys/kernel/debug/tracing/tracing_on
sleep 1

echo 0 > /sys/kernel/debug/tracing/events/enable
sleep 1
echo "events disabled"

#echo secondary_start_kernel > /sys/kernel/debug/tracing/set_ftrace_filter
#sleep 1
#echo "set_ftrace_filter init"


echo function > /sys/kernel/debug/tracing/current_tracer
sleep 1
echo "function tracer enabled"

#echo rpi_get_interrupt_info > /sys/kernel/debug/tracing/set_ftrace_filter
#echo show_interrupts > /sys/kernel/debug/tracing/set_ftrace_filter
echo zoneinfo_show > /sys/kernel/debug/tracing/set_ftrace_filter
sleep 1
echo "set_ftrace_filter enabled"

#echo 1 > /sys/kernel/debug/tracing/events/irq/irq_handler_entry/enable
#echo 1 > /sys/kernel/debug/tracing/events/irq/irq_handler_exit/enable

echo "event enabled"

echo 1 > /sys/kernel/debug/tracing/options/func_stack_trace
echo "function stack trace enabled"

echo 1 > /sys/kernel/debug/tracing/options/func_stack_trace
echo 1 > /sys/kernel/debug/tracing/options/sym-offset
echo "function stack trace enabled"


echo 1 > /sys/kernel/debug/tracing/tracing_on
echo "tracing on"

getter