haiku/build/scripts/build_cross_tools
2012-10-30 22:36:32 +01:00

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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 [ ! -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
# build binutils
cd $binutilsObjDir
CFLAGS="-O2" CXXFLAGS="-O2" $buildToolsDir/binutils/configure \
--prefix=$installDir --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 \
--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.
sysIncludeDir=$installDir/i586-pc-haiku/sys-include
rm -rf $sysIncludeDir/be $sysIncludeDir/posix
# remove the objects dir
rm -rf $objDir
echo "binutils and gcc for cross compilation have been built successfully!"