source: mainline/contrib/tools/random_check.sh@ 787510d

#!/bin/sh

#
# Copyright (c) 2014 Vojtech Horky
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in the
#   documentation and/or other materials provided with the distribution.
# - The name of the author may not be used to endorse or promote products
#   derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

LOOPS="$1"
PARALLELISM="$2"
COMPILERS="$3"
[ -z "$LOOPS" ] && LOOPS=1
[ -z "$PARALLELISM" ] && PARALLELISM=1
# By default, skip icc and native GCC
[ -z "$COMPILERS" ] && COMPILERS="gcc_cross gcc_helenos clang"

COUNTER=0
FAILED=0
while [ $COUNTER -lt $LOOPS ]; do
        COUNTER=$(( $COUNTER + 1 ))
        echo "Try #$COUNTER ($FAILED failed):" >&2
        
        (
                echo "  Cleaning after previous build." >&2
                make distclean -j$PARALLELISM 2>&1 || exit 1
                
                
                echo "  Preparing random configuration." >&2
                # It would be nicer to allow set the constraints directly to
                # the tools/config.py script but this usually works.
                # We retry several times if the compiler is wrong and abort if
                # we do not succeed after many attempts.
                RETRIES=0
                while true; do
                        RETRIES=$(( $RETRIES + 1 ))
                        if [ $RETRIES -ge 20 ]; then
                                echo "  Failed to generate random configuration with given constraints after $RETRIES tries." >&2
                                exit 2
                        fi
                        
                        make random-config 2>&1 || exit 1
                        
                        CC=`sed -n 's#^COMPILER = \(.*\)#\1#p' <Makefile.config`
                        if echo " $COMPILERS " | grep -q " $CC "; then
                                break
                        fi
                done
                
                
                # Report basic info about the configuration and build it
                BASIC_CONFIG=`sed -n \
                        -e 's#PLATFORM = \(.*\)#\1#p' \
                        -e 's#MACHINE = \(.*\)#\1#p' \
                        -e 's#COMPILER = \(.*\)#\1#p' \
                        Makefile.config \
                        | paste '-sd,' | sed 's#,#, #g'`
                echo -n "  Building ($BASIC_CONFIG)... " >&2
        
                make -j$PARALLELISM 2>&1
                if [ $? -eq 0 ]; then
                        echo "okay." >&2
                        exit 0
                else
                        echo "failed." >&2
                        exit 1
                fi
                
        ) >random_run_$COUNTER.log
        RC=$?
        
        if [ $RC -ne 0 ]; then
                tail -n 10 random_run_$COUNTER.log | sed 's#.*#    | &#'
                FAILED=$(( $FAILED + 1 ))
        fi
        
        if [ -e Makefile.config ]; then
                cp Makefile.config random_run_$COUNTER.Makefile.config
                cp config.h random_run_$COUNTER.config.h
        fi      
done


echo "Out of $LOOPS tries, $FAILED configurations failed to compile." >&2