diff options
Diffstat (limited to 'tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc index bb16cf91f1b5..ce361b9d62cf 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc @@ -12,9 +12,24 @@ case `uname -m` in *) OFFS=0;; esac -echo "Setup up to 256 kprobes" -grep t /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \ -head -n 256 | while read i; do echo p ${i}+${OFFS} ; done > kprobe_events ||: +if [ -d events/kprobes ]; then + echo 0 > events/kprobes/enable + echo > kprobe_events +fi + +N=0 +echo "Setup up kprobes on first available 256 text symbols" +grep -i " t " /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \ +while read i; do + echo p ${i}+${OFFS} >> kprobe_events && N=$((N+1)) ||: + test $N -eq 256 && break +done + +L=`wc -l kprobe_events` +if [ $L -ne $N ]; then + echo "The number of kprobes events ($L) is not $N" + exit_fail +fi echo 1 > events/kprobes/enable echo 0 > events/kprobes/enable |