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#!/bin/sh

# Build script to build GDB with all targets enabled.

# Copyright (C) 2008 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.  If not, see <http://www.gnu.org/licenses/>.

# Make certain that the script is not running in an internationalized

# environment. The script is grepping for GDB's output.

# Contributed by Markus Deuling <deuling@de.ibm.com>.

# Based on gdb_mbuild.sh from Richard Earnshaw.

LANG=c ; export LANG

LC_ALL=c ; export LC_ALL

# Prints a usage message.

usage()

{

  cat <<EOF

Usage: gdb_buildall.sh [ <options> ... ] <srcdir> <builddir>

Options:

  --bfd64        Enable 64-bit BFD.

  --clean        Delete build directory after check.

  -e <regexp>    Regular expression for selecting the targets to build.

  --force        Force rebuild.

  -j <makejobs>  Run <makejobs> in parallel.  Passed to make.

                 On a single cpu machine, 2 is recommended.

 Arguments:

   <srcdir>       Source code directory.

   <builddir>     Build directory.

 Environment variables examined (with default if not defined):

   MAKE (make)"

EOF

  exit 1

}

### Command line options.

makejobs=

force=false

targexp=""

bfd_flag=""

clean=false

while test $# -gt 0

do

  case "$1" in

  -j )

      # Number of parallel make jobs.

      shift

      test $# -ge 1 || usage

      makejobs="-j $1"

      ;;

      --clean )

        # Shall the build directory be deleted after processing?

        clean=true

        ;;

    -e )

      # A regular expression for selecting targets

      shift

      test $# -ge 1 || usage

      targexp="${targexp} -e ${1}"

      ;;

    --force )

      # Force a rebuild

      force=true ;

      ;;

    --bfd64)

      # Enable 64-bit BFD

      bfd_flag="--enable-64-bit-bfd"

      ;;

    -* ) usage ;;

    *) break ;;

  esac

  shift

done

if test $# -ne 2

then

  usage

fi

### Environment.

# Convert these to absolute directory paths.

srcdir=`cd $1 && /bin/pwd` || exit 1

builddir=`cd $2 && /bin/pwd` || exit 1

# Version of make to use

make=${MAKE:-make}

MAKE=${make}

export MAKE

# We dont want GDB do dump cores.

ulimit -c 0

# Just make sure we're in the right directory.

maintainers=${srcdir}/gdb/MAINTAINERS

if [ ! -r ${maintainers} ]

then

    echo Maintainers file ${maintainers} not found

    exit 1

fi

# Build GDB with all targets enabled.

echo "Starting gdb_buildall.sh ..."

trap "exit 1"  1 2 15

dir=${builddir}/ALL

# Should a scratch rebuild be forced, for perhaps the entire build be skipped?

if ${force}

then

  echo ... forcing rebuild

  rm -rf ${dir}

fi

# Did the previous configure attempt fail?  If it did restart from scratch

if test -d ${dir} -a ! -r ${dir}/Makefile

then

  echo ... removing partially configured

  rm -rf ${dir}

  if test -d ${dir}

  then

    echo "... ERROR: Unable to remove directory ${dir}"

    exit 1

  fi

fi

# Create build directory.

mkdir -p ${dir}

cd ${dir} || exit 1

# Configure GDB.

if test ! -r Makefile

then

  # Default SIMOPTS to GDBOPTS.

  test -z "${simopts}" && simopts="${gdbopts}"

  # The config options.

  __build="--enable-targets=all"

  __enable_gdb_build_warnings=`test -z "${gdbopts}" \

    || echo "--enable-gdb-build-warnings=${gdbopts}"`

  __enable_sim_build_warnings=`test -z "${simopts}" \

    || echo "--enable-sim-build-warnings=${simopts}"`

  __configure="${srcdir}/configure \

    ${__build} ${bfd_flag}\

    ${__enable_gdb_build_warnings} \

    ${__enable_sim_build_warnings}"

  echo ... ${__configure}

  trap "echo Removing partially configured ${dir} directory ...; rm -rf ${dir}; exit 1" 1 2 15

  ${__configure} > Config.log 2>&1

  trap "exit 1"  1 2 15

  # Without Makefile GDB won't build.

  if test ! -r Makefile

  then

    echo "... CONFIG ERROR: GDB couldn't be configured " | tee -a Config.log

    echo "... CONFIG ERROR: see Config.log for details "

    exit 1

  fi

fi

# Build GDB, if not built.

gdb_bin="gdb/gdb"

if test ! -x gdb/gdb -a ! -x gdb/gdb.exe

then

  echo ... ${make} ${makejobs}

  ( ${make} ${makejobs} all-gdb || rm -f gdb/gdb gdb/gdb.exe

  ) > Build.log 2>&1

  # If the build fails, exit.

  if test ! -x gdb/gdb -a ! -x gdb/gdb.exe

  then

    echo "... BUILD ERROR: GDB couldn't be compiled " | tee -a Build.log

    echo "... BUILD ERROR: see Build.log for details "

    exit 1

  fi

  if test -x gdb/gdb.exe

  then

    gdb_bin="gdb/gdb.exe"

  fi

fi

# Retrieve a list of settable architectures by invoking "set architecture"

# without parameters.

cat <<EOF > arch

set architecture

quit

EOF

./gdb/gdb --batch -nx -x arch 2>&1 | cat > gdb_archs

tail -n 1 gdb_archs | sed 's/auto./\n/g' | sed 's/,/\n/g' |  sed 's/Requires an argument. Valid arguments are/\n/g' | sed '/^[ ]*$/d' > arch

mv arch gdb_archs

if test "${targexp}" != ""

then

  alltarg=`cat gdb_archs | grep ${targexp}`

else

  alltarg=`cat gdb_archs`

fi

rm -f gdb_archs

# Test all architectures available in ALLTARG

echo "maint print architecture for"

echo "$alltarg" | while read target

do

  cat <<EOF > x

set architecture ${target}

maint print architecture

quit

EOF

  log_file=$target.log

  log_file=${log_file//:/_}

  echo -n "... ${target}"

  ./gdb/gdb -batch -nx -x x 2>&1 | cat > $log_file

  # Check GDBs results

  if test ! -s $log_file

  then

    echo " ERR: gdb printed no output" | tee -a $log_file

  elif test `grep -o internal-error $log_file | tail -n 1`

  then

    echo " ERR: gdb panic" | tee -a $log_file

  else

    echo " OK"

  fi

  # Create a sed script that cleans up the output from GDB.

  rm -f mbuild.sed

  # Rules to replace <0xNNNN> with the corresponding function's name.

  sed -n -e '/<0x0*>/d' -e 's/^.*<0x\([0-9a-f]*\)>.*$/0x\1/p' $log_file \

  | sort -u \

  | while read addr

  do

    func="`addr2line -f -e ./$gdb_bin -s ${addr} | sed -n -e 1p`"

    echo "s/<${addr}>/<${func}>/g"

  done >> mbuild.sed

  # Rules to strip the leading paths off of file names.

  echo 's/"\/.*\/gdb\//"gdb\//g' >> mbuild.sed

  # Run the script.

  sed -f mbuild.sed $log_file > Mbuild.log

  mv Mbuild.log ${builddir}/$log_file

  rm -rf $log_file x mbuild.sed

done

echo "done."

# Clean up build directory if necessary.

if ${clean}

then

  echo "cleanning up $dir"

  rm -rf ${dir}

fi

exit 0