tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3# description: trace_marker trigger - test snapshot trigger
4# requires: set_event snapshot events/ftrace/print/trigger
5# flags: instance
6
7fail() { #msg
8 echo $1
9 exit_fail
10}
11
12test_trace() {
13 file=$1
14 x=$2
15
16 cat $file | while read line; do
17 comment=`echo $line | sed -e 's/^#//'`
18 if [ "$line" != "$comment" ]; then
19 continue
20 fi
21 echo "testing $line for >$x<"
22 match=`echo $line | sed -e "s/>$x<//"`
23 if [ "$line" = "$match" ]; then
24 fail "$line does not have >$x< in it"
25 fi
26 x=$((x+2))
27 done
28}
29
30echo "Test snapshot trace_marker trigger"
31
32echo 'snapshot' > events/ftrace/print/trigger
33
34# make sure the snapshot is allocated
35
36grep -q 'Snapshot is allocated' snapshot
37
38for i in `seq 1 10` ; do echo "hello >$i<" > trace_marker; done
39
40test_trace trace 1
41test_trace snapshot 2
42
43exit 0