haiku/build/scripts/build_cross_tools
Oliver Tappe 92bb2fb33e Remove whole sys-include folder when cross-compiler has been built.
* at least for gcc2, we used to leave the 'os' subfolder in there,
  which may have caused problems when Haiku's headers have changed
  since the last time the compiler was built.
2013-06-14 16:07:06 +02:00

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#!/bin/sh
# Parameters <haiku sourcedir> <buildtools dir> <haiku output dir>
# Influential environmental variable:
# * haikuRequiredLegacyGCCVersion: The required version of the gcc. Will be
# checked against the version in the buildtools directory.
# get and check the parameters
if [ $# -lt 3 ]; then
echo Usage: $0 '<haiku sourcedir> <buildtools dir> <haiku output dir>' >&2
exit 1
fi
haikuSourceDir=$1
buildToolsDir=$2/legacy
haikuOutputDir=$3
shift 3
additionalMakeArgs=$*
# Note: The gcc 2 build has trouble with -jN N > 1, hence we only use the
# additional flags for the binutils build. Should there ever be any other
# flags than -jN, we need to handle this differently.
if [ `uname -o` = 'Haiku' ]; then
# force cross-build if building on Haiku:
buildhostMachine=i586-pc-haiku_buildhost
buildHostSpec="--build=$buildhostMachine --host=$buildhostMachine"
fi
if [ ! -d $haikuSourceDir ]; then
echo "ERROR: No such directory: \"$haikuSourceDir\"" >&2
exit 1
fi
if [ ! -d $buildToolsDir ]; then
echo "ERROR: No such directory: \"$buildToolsDir\"" >&2
exit 1
fi
# verify or extract the gcc version
gccVersionDotC="$buildToolsDir/gcc/gcc/version.c"
if [ -n "$haikuRequiredLegacyGCCVersion" ]; then
# haikuRequiredLegacyGCCVersion has been specified. Check whether the
# version of the gcc in the given build tools directory matches.
if ! grep "$haikuRequiredLegacyGCCVersion" \
"$gccVersionDotC" >/dev/null 2>&1 ; then
echo "*** Mismatching compiler versions between configure script and" \
>&2
echo "*** $gccVersionDotC" >&2
echo "*** Did you perhaps update only one of haiku & buildtools?" >&2
exit 1
fi
else
# haikuRequiredLegacyGCCVersion wasn't specified. Extract the version string
# from the gcc's version.c.
haikuRequiredLegacyGCCVersion=`grep "2.95.3-haiku-" "$gccVersionDotC" \
| sed 's@.*\"\(.*\)\".*@\1@'`
if [ -z "$haikuRequiredLegacyGCCVersion" ]; then
echo "ERROR: Failed to extract version string from $gccVersionDotC" >&2
exit 1
fi
fi
# create the output dir
mkdir -p $haikuOutputDir || exit 1
# get absolute paths
currentDir=`pwd`
cd $haikuSourceDir
haikuSourceDir=`pwd`
cd $currentDir
cd $buildToolsDir
buildToolsDir=`pwd`
cd $currentDir
cd $haikuOutputDir
haikuOutputDir=`pwd`
# create the object and installation directories for the cross compilation tools
installDir=$haikuOutputDir/cross-tools
objDir=$haikuOutputDir/cross-tools-build
binutilsObjDir=$objDir/binutils
gccObjDir=$objDir/gcc
tmpIncludeDir=$objDir/sysincludes
tmpLibDir=$objDir/syslibs
rm -rf $installDir $objDir
mkdir -p $installDir $objDir $binutilsObjDir $gccObjDir $tmpIncludeDir \
$tmpLibDir || exit 1
mkdir -p $installDir/lib/gcc-lib/i586-pc-haiku/$haikuRequiredLegacyGCCVersion
# force the POSIX locale, as the build (makeinfo) might choke otherwise
export LC_ALL=POSIX
# drop an multiple job arguments from MAKEFLAGS
if [ ! -z "$MAKEFLAGS" ]; then
export MAKEFLAGS=$(echo $MAKEFLAGS | sed -e 's/-j\s*[0-9][0-9]*//g')
fi
# build binutils
cd $binutilsObjDir
CFLAGS="-O2" CXXFLAGS="-O2" $buildToolsDir/binutils/configure \
--prefix=$installDir $buildHostSpec --target=i586-pc-haiku \
--disable-nls --enable-shared=yes --disable-werror || exit 1
make $additionalMakeArgs || exit 1
make $additionalMakeArgs install || exit 1
PATH=$PATH:$installDir/bin
export PATH
# build gcc
# prepare the include files
copy_headers()
{
sourceDir=$1
targetDir=$2
headers="`find $sourceDir -name \*\.h`"
headers="`echo $headers | sed -e s@$sourceDir/@@g`"
for f in $headers; do
headerTargetDir=$targetDir/`dirname $f`
mkdir -p $headerTargetDir
cp $sourceDir/$f $headerTargetDir
done
}
copy_headers $haikuSourceDir/headers/config $tmpIncludeDir/config
copy_headers $haikuSourceDir/headers/os $tmpIncludeDir/os
copy_headers $haikuSourceDir/headers/posix $tmpIncludeDir/posix
# Touch some files generated by bison, so that bison won't run to update them.
# Fixes issues with newer bison versions.
# And while at it, touch gperf target, too (as gperf may not be installed)
(cd $buildToolsDir/gcc/gcc; touch c-parse.c c-parse.h cexp.c cp/parse.c \
cp/parse.h c-gperf.h)
# configure gcc
cd $gccObjDir
case `uname` in
Darwin)
# GCC 2 compiled for x86_64 OS X is broken, compile for i386.
export CC="gcc -arch i386"
;;
esac
CFLAGS="-O2 -U_FORTIFY_SOURCE" CXXFLAGS="-O2" $buildToolsDir/gcc/configure \
--prefix=$installDir $buildHostSpec --target=i586-pc-haiku \
--disable-nls --enable-shared=yes --enable-languages=c,c++ \
--with-headers=$tmpIncludeDir --with-libs=$tmpLibDir \
|| exit 1
unset CC
# hack the Makefile to avoid trouble with stuff we don't need anyway
sedExpr=
for toRemove in libiberty libio libjava libobjc libstdc++; do
sedExpr="$sedExpr -e 's@^\(TARGET_CONFIGDIRS =.*\)$toRemove\(.*\)@\1\2@'"
done
echo sedExpr: $sedExpr
mv Makefile Makefile.bak || exit 1
eval "sed $sedExpr Makefile.bak > Makefile" || exit 1
rm Makefile.bak
# make gcc
make cross || {
echo "ERROR: Building gcc failed." >&2
exit 1
}
# install gcc
make install-gcc-cross || {
echo "ERROR: Installing the cross compiler failed." >&2
exit 1
}
# Remove the math.h gcc header. It has been generated by fixincludes
# (unconditional hack: math_huge_val_ifndef) from ours and it is semantically
# equivalent.
rm -f $installDir/lib/gcc-lib/i586-pc-haiku/$haikuRequiredLegacyGCCVersion/include/math.h
# cleanup
# remove the system headers from the installation dir
# Only the ones from the source tree should be used.
rm -rf $installDir/i586-pc-haiku/sys-include
# remove the objects dir
rm -rf $objDir
echo "binutils and gcc for cross compilation have been built successfully!"