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Message-Id: <1669165413-12035-3-git-send-email-yangtiezhu@loongson.cn>
Date: Wed, 23 Nov 2022 09:03:29 +0800
From: Tiezhu Yang <yangtiezhu@...ngson.cn>
To: Shuah Khan <shuah@...nel.org>,
Shuah Khan <skhan@...uxfoundation.org>
Cc: linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/6] selftests: ftrace: Use "grep -E" instead of "egrep"
The latest version of grep claims the egrep is now obsolete so the build
now contains warnings that look like:
egrep: warning: egrep is obsolescent; using grep -E
fix this up by moving the related file to use "grep -E" instead.
sed -i "s/egrep/grep -E/g" `grep egrep -rwl tools/testing/selftests/ftrace`
Here are the steps to install the latest grep:
wget http://ftp.gnu.org/gnu/grep/grep-3.8.tar.gz
tar xf grep-3.8.tar.gz
cd grep-3.8 && ./configure && make
sudo make install
export PATH=/usr/local/bin:$PATH
Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
.../testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc b/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc
index 22bff12..ba10389 100644
--- a/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc
+++ b/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc
@@ -46,10 +46,10 @@ cat trace
grep -q "tracer: preemptoff" trace || fail
# Check the end of the section
-egrep -q "5.....us : <stack trace>" trace || fail
+grep -E -q "5.....us : <stack trace>" trace || fail
# Check for 500ms of latency
-egrep -q "latency: 5..... us" trace || fail
+grep -E -q "latency: 5..... us" trace || fail
reset_tracer
@@ -69,10 +69,10 @@ cat trace
grep -q "tracer: irqsoff" trace || fail
# Check the end of the section
-egrep -q "5.....us : <stack trace>" trace || fail
+grep -E -q "5.....us : <stack trace>" trace || fail
# Check for 500ms of latency
-egrep -q "latency: 5..... us" trace || fail
+grep -E -q "latency: 5..... us" trace || fail
reset_tracer
exit 0
--
2.1.0
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