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@xxxxxxxxxxx> --- .../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
