# --- T2-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
# 
# T2 SDE: package/.../gcc/gcc.conf
# Copyright (C) 2004 - 2006 The T2 SDE Project
# 
# More information can be found in the files COPYING and README.
# 
# 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; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- T2-COPYRIGHT-NOTE-END ---

# create and set up cmd_wrapper for xgcc
function setup_xgcc_wrapper() {
	mkdir gcc ; pushd gcc

	cat <<-EOF > xgcc-wrapper
#!/bin/bash
[ "\$GCC_WRAPPER_DEBUG" = 1 ] && export CMD_WRAPPER_DEBUG=1
export CMD_WRAPPER_OTHERS="\$CC_WRAPPER_OTHERS:\$GCC_WRAPPER_OTHERS:\$GCC3_WRAPPER_OTHERS"
export CMD_WRAPPER_INSERT="\$CC_WRAPPER_INSERT \$GCC_WRAPPER_INSERT \$GCC3_WRAPPER_INSERT"
export CMD_WRAPPER_REMOVE="\$CC_WRAPPER_REMOVE \$GCC_WRAPPER_REMOVE \$GCC3_WRAPPER_REMOVE"
export CMD_WRAPPER_APPEND="\$CC_WRAPPER_APPEND \$GCC_WRAPPER_APPEND \$GCC3_WRAPPER_APPEND"
export CMD_WRAPPER_FILTER="\$CC_WRAPPER_FILTER|\$GCC_WRAPPER_FILTER|\$GCC3_WRAPPER_FILTER"
exec cmd_wrapper "\$@"
EOF

	chmod 0755 xgcc-wrapper
	export STAGE_CC_WRAPPER=$PWD/xgcc-wrapper
	export PATH="$PWD:$PATH"

	popd
}

# We must use an 'objdir' directory for building gcc.

hook_add preconf 3 "mkdir -p objdir; cd objdir"
configscript="../configure"

# libgcc should not contain the SSP symbols this is after configure, because
# configure transmits this to gcj which breaks due to "-D..."
if [ "$SDECFG_PKG_GCC_STACKPRO" = 0 ]; then
	var_append GCC_WRAPPER_APPEND ' ' "-D_LIBC_PROVIDES_SSP_"
	export GCC_WRAPPER_APPEND
fi

# See http://gcc.gnu.org/gcc-3.2/c++-abi.html
# and http://www.codesourcery.com/cxx-abi/.
var_append confopt ' ' "--enable-__cxa_atexit"

# add the multi-lib config
if [ "$SDECFG_MULTILIB" = 1 ]; then
	var_append confopt ' ' "--enable-multilib"
else
	var_append confopt ' ' "--disable-multilib"
fi

if [ "${ver:0:3}" = "3.4" -o "${ver:0:1}" = "4" ]; then
	gcc_lib_dir="gcc/${arch_target}/${ver%%-*}"
else
	gcc_lib_dir="gcc-lib/${arch_target}/${ver%%-*}"
fi

if [ $stagelevel = 0 ]; then
	bindir="/$prefix/crosscc"

	# hack due to sane variable not available -ReneR
	var_append confopt " " "--with-sysroot=$base/build/$SDECFG_ID"

	var_append confopt " " "--program-prefix=${arch_target}-"
	var_append confopt " " "--disable-cpp --disable-shared"
fi

if [ $stagelevel -le 1 ]; then
	var_append confopt " " "--enable-languages=c"
fi

if [ $stagelevel -gt 1 ]; then
	var_append confopt " " "--with-gnu-as --with-gnu-ld --enable-threads=posix"
	var_append confopt " " "--enable-version-specific-runtime-libs"

	if [ "$SDECFG_PKG_GCC_JAVA" != 1 ] ; then
		var_append confopt " " "--disable-libgcj"
	fi

	# Set enable-shared
	if [ "$diet_dynamic_static" == "static" ] ; then
		var_append confopt " " "--disable-shared"
	else
		var_append confopt " " "--enable-shared"
	fi

fi

gcc_premake() {
	# create and set up the xgcc cmd_wrapper
	setup_xgcc_wrapper

	if [ $arch = powerpc ] ; then
		ln -s ppc-nocross-linux-gnu powerpc-nocross-linux-gnu
	fi

	if [ $stagelevel = 0 ] ; then
		mkdir -p $root/$prefix/$arch_target/{bin,lib}
		rm -f $root/$prefix/$arch_target/include
		if [ -f $root/$prefix/include/stdio.h ]; then
			ln -s ../include $root/$prefix/$arch_target/include
		elif [ -f $root/$prefix/diet-include/stdio.h ]; then
			ln -s ../diet-include $root/$prefix/$arch_target/include
		fi
	elif [ $stagelevel -le 1 ] ; then
		mkdir -p gcc/include
		echo '#include_next <limits.h>' > gcc/include/syslimits.h
	fi
}

gcc_postmake()
{
	# force a tools rebuild
	rm -fv $base/build/$SDECFG_ID/TOOLCHAIN/$toolsdir/.lastupdate

	# only minimal adaptions for stage0
	if [ $stagelevel = 0 ]; then
		${arch_target}-ranlib \
			$root/$libdir/${gcc_lib_dir}/libgcc.a
		for x in gcc-${ver:0:1} kcc{,-${ver:0:1}} cc; do
			ln -svf ${arch_target}-gcc \
				$root/$prefix/crosscc/${arch_target}-$x
		done

		ln -svf ${arch_target}-gcc $root/$prefix/crosscc/${arch_target}-cc

		rm -vf "$root/$prefix/crosscc/{gcc,gcj}"

		return
	fi

	if [ $stagelevel = 1 ]; then
		# This stuff needs manual installation
		#
		echo "Creating /$prefix/${arch_target} ..."
		mkdir -p $root/$prefix/${arch_target}/lib

		# FIXME! temporal hack to install libgcc_s (Ticket #100)
		if [ "$SDECFG_MULTILIB" = 1 ]; then
			rm -rf $root$libdir/libgcc_s*
			pushd $builddir/gcc-*/objdir/gcc/
			for x in libgcc_s*.so ; do
			  cp -v $x $root$libdir/$x.1
			  ln -sfv $x.1 $root$libdir/$x
			done
			popd
		fi
	else
		# Fix the location of any improperly installed (F77) libraries
		mv -vf $root/$libdir/$gcc_lib_dir/../lib* \
		       $root/$libdir/$gcc_lib_dir || true
	fi

	# Create various symlinks for cc, c++, cpp and f77.
	#
	rm -f $root/$prefix/bin/cc
	ln -sfv gcc $root/$prefix/bin/cc
	ln -sfv ../$prefix/bin/cpp $root/lib/cpp
	ln -sfv gcc $root/$prefix/bin/kcc-${ver:0:1}
	ln -sfv gcc $root/$prefix/bin/kcc
	if [ -f $root/$prefix/bin/g77 ] ; then
		rm -fv $root/$prefix/bin/f77
		ln -sfv g77 $root/$prefix/bin/f77
	fi

	# Create symlinks for runtime libraries so they can be found by
	# the dynamic loader and force rebuilding of the wrapper links
	#
	if [ $stagelevel -gt 1 ] ; then
		( cd $root/$libdir ; ln -vfs ${gcc_lib_dir}/*.so.* . ; )
	fi
	true
}

# Apply the respective gcc-2 or gcc-3 stack protector patch.
hook_add prepatch 3 ". $base/package/*/gcc/apply-protector.sh"
hook_add premake  5 "gcc_premake"
hook_add postmake 5 "gcc_postmake"