xref: /openbmc/linux/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc (revision 4b4193256c8d3bc3a5397b5cd9494c2ad386317d)
1cfa0963dSMasami Hiramatsu#!/bin/sh
2b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0
3cfa0963dSMasami Hiramatsu# description: event trigger - test snapshot-trigger
4*3591e90fSMasami Hiramatsu# requires: set_event events/sched/sched_process_fork/trigger snapshot
5cfa0963dSMasami Hiramatsu
6cfa0963dSMasami Hiramatsufail() { #msg
7cfa0963dSMasami Hiramatsu    echo $1
842534b1fSMasami Hiramatsu    exit_fail
9cfa0963dSMasami Hiramatsu}
10cfa0963dSMasami Hiramatsu
11cfa0963dSMasami HiramatsuFEATURE=`grep snapshot events/sched/sched_process_fork/trigger`
12cfa0963dSMasami Hiramatsuif [ -z "$FEATURE" ]; then
13cfa0963dSMasami Hiramatsu    echo "snapshot trigger is not supported"
14cfa0963dSMasami Hiramatsu    exit_unsupported
15cfa0963dSMasami Hiramatsufi
16cfa0963dSMasami Hiramatsu
17861f47b0SMasanari Iidaecho "Test snapshot trigger"
18cfa0963dSMasami Hiramatsuecho 0 > snapshot
19cfa0963dSMasami Hiramatsuecho 1 > events/sched/sched_process_fork/enable
20cfa0963dSMasami Hiramatsu( echo "forked")
21cfa0963dSMasami Hiramatsuecho 'snapshot:1' > events/sched/sched_process_fork/trigger
22cfa0963dSMasami Hiramatsu( echo "forked")
23cfa0963dSMasami Hiramatsugrep sched_process_fork snapshot > /dev/null || \
24cfa0963dSMasami Hiramatsu    fail "snapshot trigger on sched_process_fork did not work"
25cfa0963dSMasami Hiramatsu
26cfa0963dSMasami Hiramatsureset_trigger
27cfa0963dSMasami Hiramatsuecho 0 > snapshot
28cfa0963dSMasami Hiramatsuecho 0 > events/sched/sched_process_fork/enable
29cfa0963dSMasami Hiramatsu
30cfa0963dSMasami Hiramatsuecho "Test snapshot semantic errors"
31cfa0963dSMasami Hiramatsu
32cfa0963dSMasami Hiramatsu! echo "snapshot+1" > events/sched/sched_process_fork/trigger
33cfa0963dSMasami Hiramatsuecho "snapshot" > events/sched/sched_process_fork/trigger
34cfa0963dSMasami Hiramatsu! echo "snapshot" > events/sched/sched_process_fork/trigger
35cfa0963dSMasami Hiramatsu
36cfa0963dSMasami Hiramatsuexit 0
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