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#!/bin/sh

#  Test GCC.

#  Copyright (C) 1999, 2000, 2001, 2002, 2005, 2006, 2009

#  Free Software Foundation, Inc.

#  This program is free software; you can redistribute it and/or modify

#  it under the terms of the GNU General Public License as published by

#  the Free Software Foundation; either version 3 of the License, or

#  (at your option) any later version.

#  This program is distributed in the hope that it will be useful,

#  but WITHOUT ANY WARRANTY; without even the implied warranty of

#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

#  GNU General Public License for more details.

#  You should have received a copy of the GNU General Public License

#  along with this program; see the file COPYING3.  If not see

#  <http://www.gnu.org/licenses/>.

# INPUT:

# btest <options> <target> <source> <prefix> <state> <build>

add_passes_despite_regression=0

dashj=''

# <options> can be

# --add-passes-despite-regression:

#  Add new "PASSes" despite there being some regressions.

# -j<n>:

#  Pass '-j<n>' to make.

case "$1" in

 --add-passes-despite-regression)

  add_passes_despite_regression=1; shift;;

 -j*)

  dashj=$1; shift;;

 -*) echo "Invalid option: $1"; exit 2;;

esac

# TARGET is the target triplet.  It should be the same one as used in

# constructing PREFIX.  Or it can be the keyword 'native', indicating

# a target of whatever platform the script is running on.

TARGET=$1

# SOURCE is the directory containing the toplevel configure.

SOURCE=$2

# PREFIX is the directory for the --prefix option to configure.

#   For cross compilers, it needs to contain header files,

#   libraries, and binutils.  PATH should probably include

#   $PREFIX/bin.

PREFIX=$3

# This script also needs to include the GDB testsuite in

#   $PREFIX/share/gdb-testsuite.

GDB_TESTSUITE=$PREFIX/share/gdb-testsuite

# STATE is where the tester maintains its internal state,

#   described below.

STATE=$4

# BUILD is a temporary directory that this script will

#   delete and recreate, containing the build tree.

BUILD=$5

# you also probably need to set these variables:

# PATH: should contain a native gcc, and a cross gdb.

# DEJAGNU: should point to a site.exp suitable for testing

#   the compiler and debugger.

# OUTPUT: in $RESULT, one of the following keywords:

#   error       the script failed due to

#               a misconfiguration or resource limitation

#   build       the build failed

#   regress-<n> the build succeeded, but there were <n>

#               testsuite regressions, listed in $REGRESS

#   pass        build succeeded and there were no regressions

RESULT=$STATE/RESULT

# in BUILD_LOG, the output of the build

BUILD_LOG=$STATE/build_log

# in FAILED, a list of failing testcases

FAILED=$STATE/failed

# in PASSES, the list of testcases we expect to pass

PASSES=$STATE/passes

# in REGRESS, a list of testcases we expected to pass but that failed

REGRESS=$STATE/regress

# Make sure various files exist.

[ -d $STATE ] || mkdir $STATE

[ -f $PASSES ] || touch $PASSES

# These lines should stay in this order, because

# that way if something is badly wrong and $RESULT can't

# be modified then cron will mail the error message.

# The reverse order could lead to the testsuite claiming that

# everything always passes, without running any tests.

echo error > $RESULT || exit 1

exec > $BUILD_LOG 2>&1 || exit 1

set -x

# Nuke $BUILD and recreate it.

rm -rf $BUILD $REGRESS $FAILED

mkdir $BUILD || exit 1

cd $BUILD || exit 1

H_BUILD=`$SOURCE/config.guess || exit 1`

H_HOST=$H_BUILD

if [ $TARGET = native ] ; then

  H_TARGET=$H_HOST

else

  H_TARGET=$TARGET

fi

H_REAL_TARGET=`$SOURCE/config.sub $H_TARGET || exit 1`

# TESTLOGS is the list of dejagnu .sum files that the tester should

# look at.

TESTLOGS="gcc/testsuite/gcc/gcc.sum

gcc/testsuite/g++/g++.sum

gcc/testsuite/gfortran/gfortran.sum

gcc/testsuite/objc/objc.sum"

# Build.

echo build > $RESULT

if [ $H_HOST = $H_TARGET ] ; then

  $SOURCE/configure --prefix=$PREFIX --target=$H_TARGET || exit 1

  if ! make $dashj bootstrap ; then

    [ -s .bad_compare ] || exit 1

    cat .bad_compare >> $REGRESS || exit 1

    touch compare || exit 1   # Prevent the comparison from running again

    make $dashj all || exit 1

  fi

else

  withopt="--with-gnu-ld --with-gnu-as"

  case "$H_TARGET" in

    *-linux*) ;;

    *) withopt="$withopt --with-newlib";;

  esac

  $SOURCE/configure --prefix=$PREFIX --target=$H_TARGET $withopt || exit 1

  make $dashj || exit 1

fi

echo error > $RESULT || exit 1

# Test GCC against its internal testsuite.

make $dashj -k check

if [ -f $BUILD/$H_TARGET/libstdc++-v3/testsuite/libstdc++.sum ] ; then

  TESTLOGS="$TESTLOGS $H_TARGET/libstdc++-v3/testsuite/libstdc++.sum"

fi

if [ -f $BUILD/$H_TARGET/libffi/testsuite/libffi.sum ] ; then

  TESTLOGS="$TESTLOGS $H_TARGET/libffi/testsuite/libffi.sum"

fi

if [ -f $BUILD/$H_TARGET/libjava/testsuite/libjava.sum ] ; then

  TESTLOGS="$TESTLOGS $H_TARGET/libjava/testsuite/libjava.sum"

fi

if [ -f $BUILD/$H_TARGET/libgomp/testsuite/libgomp.sum ] ; then

  TESTLOGS="$TESTLOGS $H_TARGET/libgomp/testsuite/libgomp.sum"

fi

# Test the just-built GCC with the GDB testsuite.

if [ -d $GDB_TESTSUITE ] ; then

  mkdir test-gdb || exit 1

  cd $GDB_TESTSUITE || exit 1

  for i in gdb.* ; do

    if [ -d $i ] ; then

      mkdir $BUILD/test-gdb/$i

    fi

  done

  cd $BUILD/test-gdb || exit 1

  echo "set host_alias $H_HOST" > site.exp

  echo "set host_triplet $H_HOST" >> site.exp

  echo "set target_alias $H_TARGET" >> site.exp

  echo "set target_triplet $H_REAL_TARGET" >> site.exp

  echo "set build_alias $H_BUILD" >> site.exp

  echo "set build_triplet $H_BUILD" >> site.exp

  echo "set srcdir $GDB_TESTSUITE" >> site.exp

  runtest --tool gdb

  TESTLOGS="$TESTLOGS test-gdb/gdb.sum"

fi

# Sanity-check the testlogs.  They should contain at least one PASS.

cd $BUILD || exit 1

for LOG in $TESTLOGS ; do

  if ! grep ^PASS: $LOG > /dev/null ; then

    echo build > $RESULT

    exit 1

  fi

done

# Work out what failed

for LOG in $TESTLOGS ; do

  L=`basename $LOG`

  awk '/^FAIL: / { print "'$L'",$2; }' $LOG || exit 1

done | sort | uniq > $FAILED || exit 1

comm -12 $FAILED $PASSES >> $REGRESS || exit 1

NUMREGRESS=`wc -l < $REGRESS | tr -d ' '`

if [ $NUMREGRESS -eq 0 ] || [ $add_passes_despite_regression -ne 0 ] ; then

  # Update the state.

  for LOG in $TESTLOGS ; do

    L=`basename $LOG`

    awk '/^PASS: / { print "'$L'",$2; }' $LOG || exit 1

  done | sort | uniq | comm -23 - $FAILED > ${PASSES}~ || exit 1

  [ -s ${PASSES}~ ] || exit 1

  if [ $NUMREGRESS -ne 0 ] ; then

    # The way we keep track of new PASSes when in "regress-N" for

    # --add-passes-despite-regression, is to *add* them to previous

    # PASSes.  Just as without this option, we don't forget *any* PASS

    # lines, because besides the ones in $REGRESS that we definitely

    # don't want to lose, their removal or rename may have been a

    # mistake (as in, the cause of the "regress-N" state).  If they

    # come back, we then know they're regressions.

    cat ${PASSES}~ ${PASSES} | sort -u > ${PASSES}~~

    mv ${PASSES}~~ ${PASSES} || exit 1

    rm ${PASSES}~ || exit 1

  else

    # In contrast to the merging for "regress-N", we just overwrite

    # the known PASSes when in the "pass" state, so we get rid of

    # stale PASS lines for removed, moved or otherwise changed tests

    # which may be added back with a different meaning later on.

    mv ${PASSES}~ ${PASSES} || exit 1

  fi

fi

if [ $NUMREGRESS -ne 0 ] ; then

  echo regress-$NUMREGRESS > $RESULT

  exit 1

fi

echo pass > $RESULT

exit 0