diff options
| -rwxr-xr-x | tools/bootconfig/scripts/bconf2ftrace.sh | 12 | ||||
| -rw-r--r-- | tools/bootconfig/scripts/ftrace.sh | 109 |
2 files changed, 120 insertions, 1 deletions
diff --git a/tools/bootconfig/scripts/bconf2ftrace.sh b/tools/bootconfig/scripts/bconf2ftrace.sh index a46e984fb2ff..595e164dc352 100755 --- a/tools/bootconfig/scripts/bconf2ftrace.sh +++ b/tools/bootconfig/scripts/bconf2ftrace.sh @@ -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 ######### diff --git a/tools/bootconfig/scripts/ftrace.sh b/tools/bootconfig/scripts/ftrace.sh new file mode 100644 index 000000000000..186eed923041 --- /dev/null +++ b/tools/bootconfig/scripts/ftrace.sh @@ -0,0 +1,109 @@ +# 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 +} |