linux-brain/tools/testing/selftests/rcutorture/bin/parse-build.sh
Paul E. McKenney b93c765fda torture: Add --trust-make to suppress "make clean"
The current rcutorture scripts unconditionally do "make clean", which is
a good way of getting the needed testing done despite any imperfections in
Makefile dependency tracking.  However, this can be a bit irritating when
repeatedly running a single scenario after small changes, for example,
when debugging a problem that affects only a single scenario.  This commit
therefore adds a --trust-make argument that suppresses the "make clean".

Even when using ccache, this speeds up kernel builds by up to almost an
order of magnitude on my laptop.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
2019-05-28 09:06:09 -07:00

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
# Check the build output from an rcutorture run for goodness.
# The "file" is a pathname on the local system, and "title" is
# a text string for error-message purposes.
#
# The file must contain kernel build output.
#
# Usage: parse-build.sh file title
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
F=$1
title=$2
T=${TMPDIR-/tmp}/parse-build.sh.$$
trap 'rm -rf $T' 0
mkdir $T
. functions.sh
if grep -q CC < $F || test -n "$TORTURE_TRUST_MAKE"
then
:
else
print_bug $title no build
exit 1
fi
if grep -q "error:" < $F
then
print_bug $title build errors:
grep "error:" < $F
exit 2
fi
grep warning: < $F > $T/warnings
grep "include/linux/*rcu*\.h:" $T/warnings > $T/hwarnings
grep "kernel/rcu/[^/]*:" $T/warnings > $T/cwarnings
cat $T/hwarnings $T/cwarnings > $T/rcuwarnings
if test -s $T/rcuwarnings
then
print_warning $title build errors:
cat $T/rcuwarnings
exit 2
fi
exit 0