tools/bootconfig: Add --init option for bconf2ftrace.sh (5675fd4e) · Commits · 戴 / test

tools/bootconfig/scripts/bconf2ftrace.sh

+11 −1

Original line number	Diff line number	Diff line
		@@ -3,8 +3,9 @@

		usage() {
		echo "Ftrace boottime trace test tool"
		echo "Usage: $0 [--apply] [--debug] BOOTCONFIG-FILE"
		echo "Usage: $0 [--apply\|--init] [--debug] BOOTCONFIG-FILE"
		echo " --apply: Test actual apply to tracefs (need sudo)"
		echo " --init: Initialize ftrace before applying (imply --apply)"
		exit 1
		}

		@@ -13,12 +14,16 @@ usage() {
		BCONF=
		DEBUG=
		APPLY=
		INIT=
		while [ x"$1" != x ]; do
		case "$1" in
		"--debug")
		DEBUG=$1;;
		"--apply")
		APPLY=$1;;
		"--init")
		APPLY=$1
		INIT=$1;;
		*)
		[ ! -f $1 ] && usage
		BCONF=$1;;
		@@ -57,6 +62,11 @@ if [ -z "$TRACEFS" ]; then
		fi
		fi

		if [ x"$INIT" != x ]; then
		. `dirname $0`/ftrace.sh
		(cd $TRACEFS; initialize_ftrace)
		fi

		. `dirname $0`/xbc.sh

		######## main #########

tools/bootconfig/scripts/ftrace.sh

0 → 100644

+109 −0

Original line number	Diff line number	Diff line
		# SPDX-License-Identifier: GPL-2.0-only

		clear_trace() { # reset trace output
		echo > trace
		}

		disable_tracing() { # stop trace recording
		echo 0 > tracing_on
		}

		enable_tracing() { # start trace recording
		echo 1 > tracing_on
		}

		reset_tracer() { # reset the current tracer
		echo nop > current_tracer
		}

		reset_trigger_file() {
		# remove action triggers first
		grep -H ':on[^:]*(' $@ \|
		while read line; do
		cmd=`echo $line \| cut -f2- -d: \| cut -f1 -d"["`
		file=`echo $line \| cut -f1 -d:`
		echo "!$cmd" >> $file
		done
		grep -Hv ^# $@ \|
		while read line; do
		cmd=`echo $line \| cut -f2- -d: \| cut -f1 -d"["`
		file=`echo $line \| cut -f1 -d:`
		echo "!$cmd" > $file
		done
		}

		reset_trigger() { # reset all current setting triggers
		if [ -d events/synthetic ]; then
		reset_trigger_file events/synthetic/*/trigger
		fi
		reset_trigger_file events///trigger
		}

		reset_events_filter() { # reset all current setting filters
		grep -v ^none events///filter \|
		while read line; do
		echo 0 > `echo $line \| cut -f1 -d:`
		done
		}

		reset_ftrace_filter() { # reset all triggers in set_ftrace_filter
		if [ ! -f set_ftrace_filter ]; then
		return 0
		fi
		echo > set_ftrace_filter
		grep -v '^#' set_ftrace_filter \| while read t; do
		tr=`echo $t \| cut -d: -f2`
		if [ "$tr" = "" ]; then
		continue
		fi
		if ! grep -q "$t" set_ftrace_filter; then
		continue;
		fi
		name=`echo $t \| cut -d: -f1 \| cut -d' ' -f1`
		if [ $tr = "enable_event" -o $tr = "disable_event" ]; then
		tr=`echo $t \| cut -d: -f2-4`
		limit=`echo $t \| cut -d: -f5`
		else
		tr=`echo $t \| cut -d: -f2`
		limit=`echo $t \| cut -d: -f3`
		fi
		if [ "$limit" != "unlimited" ]; then
		tr="$tr:$limit"
		fi
		echo "!$name:$tr" > set_ftrace_filter
		done
		}

		disable_events() {
		echo 0 > events/enable
		}

		clear_synthetic_events() { # reset all current synthetic events
		grep -v ^# synthetic_events \|
		while read line; do
		echo "!$line" >> synthetic_events
		done
		}

		initialize_ftrace() { # Reset ftrace to initial-state
		# As the initial state, ftrace will be set to nop tracer,
		# no events, no triggers, no filters, no function filters,
		# no probes, and tracing on.
		disable_tracing
		reset_tracer
		reset_trigger
		reset_events_filter
		reset_ftrace_filter
		disable_events
		[ -f set_event_pid ] && echo > set_event_pid
		[ -f set_ftrace_pid ] && echo > set_ftrace_pid
		[ -f set_ftrace_notrace ] && echo > set_ftrace_notrace
		[ -f set_graph_function ] && echo \| tee set_graph_*
		[ -f stack_trace_filter ] && echo > stack_trace_filter
		[ -f kprobe_events ] && echo > kprobe_events
		[ -f uprobe_events ] && echo > uprobe_events
		[ -f synthetic_events ] && echo > synthetic_events
		[ -f snapshot ] && echo 0 > snapshot
		clear_trace
		enable_tracing
		}

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