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selftests: ftrace: Add synthetic event syntax testcase

Browse source 
Add a testcase to check the syntax and field types for
synthetic_events interface.

Link: http://lkml.kernel.org/r/153986838264.18251.16627517536956299922.stgit@devbox

Acked-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Masami Hiramatsu 2018-10-18 22:13:02 +09:00 committed by Steven Rostedt (VMware)
parent a360d9e401
commit ba0e41ca81
1 changed files with 80 additions and 0 deletions
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80
tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-syntax.tc Normal file
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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event trigger - test synthetic_events syntax parser
do_reset() {
reset_trigger
echo > set_event
clear_trace
}
fail() { #msg
do_reset
echo $1
exit_fail
}
if [ ! -f set_event ]; then
echo "event tracing is not supported"
exit_unsupported
fi
if [ ! -f synthetic_events ]; then
echo "synthetic event is not supported"
exit_unsupported
fi
reset_tracer
do_reset
echo "Test synthetic_events syntax parser"
echo > synthetic_events
# synthetic event must have a field
! echo "myevent" >> synthetic_events
echo "myevent u64 var1" >> synthetic_events
# synthetic event must be found in synthetic_events
grep "myevent[[:space:]]u64 var1" synthetic_events
# it is not possible to add same name event
! echo "myevent u64 var2" >> synthetic_events
# Non-append open will cleanup all events and add new one
echo "myevent u64 var2" > synthetic_events
# multiple fields with different spaces
echo "myevent u64 var1; u64 var2;" > synthetic_events
grep "myevent[[:space:]]u64 var1; u64 var2" synthetic_events
echo "myevent u64 var1 ; u64 var2 ;" > synthetic_events
grep "myevent[[:space:]]u64 var1; u64 var2" synthetic_events
echo "myevent u64 var1 ;u64 var2" > synthetic_events
grep "myevent[[:space:]]u64 var1; u64 var2" synthetic_events
# test field types
echo "myevent u32 var" > synthetic_events
echo "myevent u16 var" > synthetic_events
echo "myevent u8 var" > synthetic_events
echo "myevent s64 var" > synthetic_events
echo "myevent s32 var" > synthetic_events
echo "myevent s16 var" > synthetic_events
echo "myevent s8 var" > synthetic_events
echo "myevent char var" > synthetic_events
echo "myevent int var" > synthetic_events
echo "myevent long var" > synthetic_events
echo "myevent pid_t var" > synthetic_events
echo "myevent unsigned char var" > synthetic_events
echo "myevent unsigned int var" > synthetic_events
echo "myevent unsigned long var" > synthetic_events
grep "myevent[[:space:]]unsigned long var" synthetic_events
# test string type
echo "myevent char var[10]" > synthetic_events
grep "myevent[[:space:]]char\[10\] var" synthetic_events
do_reset
exit 0