# --- SDE-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
#
# Filename: package/.../glibc/glibc.conf
# Copyright (C) 2006 - 2012 The OpenSDE Project
# 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.
# --- SDE-COPYRIGHT-NOTE-END ---

# copy/create some needed header files
pkg_glibc_postmake_headers() {
	mkdir -p $includedir/{bits,gnu}
	cp -v ../include/features.h $root$includedir
	[ -e $root$includedir/bits/stdio_lim.h ] ||
		touch $root$includedir/bits/stdio_lim.h
	[ -e $root$includedir/gnu/stubs.h ] ||
		touch $root$includedir/gnu/stubs.h

	# on multilib enabled builds create a stubs header file for each ABI
	# TODO
	# check if that approach is the right one or if we only have to
	# create an empty stubs header for each additional ABI besides
	# the default ABI
	if [ "$SDECFG_MULTILIB" == 1 ] ; then
		for x in $arch_abis; do
			[ -e $root$includedir/gnu/stubs-$x.h ] ||
				touch $root$includedir/gnu/stubs-$x.h
		done
	fi
}

# overwrite prefix to not point to the tools, but the real root for the headers
if atstage toolchain; then
	# hack due to sane variable not available and prefix is tools prefix
	# -ReneR
	confopt="--prefix=$base/build/$SDECFG_ID/usr \
	         --with-headers=$base/build/$SDECFG_ID/usr/include \$extraconfopt"
	includedir="/../../usr/include"

	# MIPS injects -mabi - the host CC does not know about it for header gen
	var_append SYSCC_WRAPPER_REMOVE ' ' '-mabi*'
	var_append SYSCPP_WRAPPER_REMOVE ' ' '-mabi*'

	# if $HOSTCC is a gcc < 4.3 we need 'cpuid.h'
	if ! $HOSTCC -dumpversion | grep -q '^4\.[345]' ; then
		echo_warning "Old gcc detected: Working around cpuid.h support"
		var_append SYSCC_WRAPPER_APPEND ' ' "-I$confdir/include-old-gcc"
	fi

	hook_add postmake 5 'pkg_glibc_postmake_headers'
else
	var_append extraconfopt " " "--with-headers=$root/usr/include"

	if [ "$SDECFG_MULTILIB" == 1 ] ; then
		# set the ABI for each buildloop
		hook_add preconf 3 'multilib_abi_loop $buildloop'
	else
		abi="$SDECFG_ABI_DEFAULT"
	fi

	if ! [ $buildloop -eq $buildloops ]; then
		# as long as we did not reached the last loop we have to chdir
		# back to the top-level source directory before we enter the
		# next loop.
		hook_add postmake 9 'cd .. ; pwd'
	fi

	# set slibdir according to the ABI we build
	hook_add preconf 4 'pkg_glibc_abi_preconf $abi'
fi

# function to set slibdir depending on the ABI given as argument
pkg_glibc_abi_preconf() {
	slibdir="lib$1"

	# architecture specific compiler flags for 32bit ABIs
	if [ "$1" = "32" ]; then
		case "$arch" in
			x86-64) 
				var_append CC_WRAPPER_INSERT ' ' "-march=$( cut -d- -f1 <<< $arch_target )"
				var_append CXX_WRAPPER_INSERT ' ' "-march=$( cut -d- -f1 <<< $arch_target )"
				;;
		esac
	fi

	# applies to all additional ABIs while building multilib
	if [ $buildloop -ge 2 ]; then
		# only install libraries and no programs
		hook_add premake 5 "echo 'build-programs=no' > configparms"
		var_remove makeinstopt ' ' 'install'
		var_append makeinstopt ' ' 'install-lib-all'
		# filter out some unwanted header files
		var_append INSTALL_WRAPPER_FILTER "|" \
			"sed -e 's,.*usr/include/.*\.h,/tmp/removed.h,'"
	else
		# only run postmake while building the default ABI
		if atstage native; then
			hook_add postmake 5 'pkg_glibc_postmake'
		fi
	fi
}

# use at least "-O" when build without optimisation for debugging ...
var_insert GCC_WRAPPER_INSERT " " "-O"
# glibc does not like -ffast-math
var_insert GCC_WRAPPER_REMOVE " " "-ffast-math"

var_append confopt " " "--enable-kernel=2.6.18"

# Disable glibc internal debuging but build debuging and profile
# code so we can use this glibc to debug other programs.
pkg_glibc_preconf(){
	configprefix='CFLAGS="$CFLAGS -g -DNDEBUG=1"'
	configscript="../configure"
}
hook_add preconf 3 "pkg_glibc_preconf"

# We have to use an 'objdir' directory for building glibc and make its
# name unique by appending $arch_target to distinguish while building
# a multilib capable glibc using buildloops.
pkg_glibc_objdir(){
	mkdir -p "objdir-$abi"
	cd "objdir-$abi"
}
hook_add preconf 9 "pkg_glibc_objdir"

var_append extraconfopt " " "--with-gnu-binutils --build=${arch_build} --host=${arch_target}"

if pkginstalled libgd; then
	var_append extraconfopt " " "--with-gd=/usr --with-gd-lib=/usr/lib --with-gd-include=/usr/include"
fi

# --enable-add-ons expects a comma seperated list of add-ons
glibc_addons="ports"

# ckeck whether to enable nptl if supported by the architecture
if [ $SDECFG_PKG_GLIBC_TLS = 1 ]; then
	var_append glibc_addons "," "nptl"
	var_append extraconfopt " " "--with-tls"
	var_append extraconfopt " " "--with-__thread"

	# cross-compile help
	if ! atstage native; then
		var_append configcache ' ' "libc_cv_forced_unwind=yes"
		var_append configcache ' ' "libc_cv_c_cleanup=yes"
	fi

	# help building/installing correct glibc headers at toolchain stage
	if atstage toolchain; then
		case "$arch" in
			x86) var_append configcache ' ' "libc_cv_386_tls=yes" ;;
		esac
	fi
else
	var_append glibc_addons "," "linuxthreads"
	var_append extraconfopt " " "--without-__thread"
	var_append extraconfopt " " "--disable-sanity-checks"

	[[ $arch = mips* ]] && \
		var_append extraconfopt " " "--without-tls"
fi

# ckeck whether to enable libidn support
if [ $SDECFG_PKG_GLIBC_LIBIDN = 1 ]; then
	var_append glibc_addons "," "libidn"
fi

var_append extraconfopt " " "--enable-add-ons=$glibc_addons"

# control whether to include profiling support
if [ $SDECFG_PKG_GLIBC_ENABLE_PROFILE = 1 ] ; then
	var_append extraconfopt " " "--enable-profile"
else
	var_append extraconfopt " " "--disable-profile"
fi

var_append makeopt " " "slibdir=/\$slibdir"
var_append makeinstopt " " "slibdir=/\$slibdir install_root=\$root"

glibc_prepatch() {
	local tarball= tarname=
	local addon= addons="ports"

	##[ "$SDECFG_PKG_GLIBC_TLS" = 1 ] || var_append addons ' ' 'linuxthreads'

	for addon in $addons; do
		tarball=$( match_source_file -p $addon )
		tarname=${tarball##*/}; tarname=${tarname%.tar.*}

		# extract each addon into the definitive folder
		mkdir -pv $addon
		ln -sv $addon $tarname
		tar -v --dereference ${taropt} $tarball
		rm $tarname
	done
}

pkg_glibc_postmake()
{
	ln -sf libbsd-compat.a $root/usr/$slibdir/libbsd.a

	# Misc. stuff
	#
	if atstage native; then

		# install locales when building the default ABI or create
		# a symlink for the other selected ABIs
		if [ "$abi" == "$SDECFG_ABI_DEFAULT" ]; then
			eval $MAKE localedata/install-locales
			cp ../localedata/SUPPORTED $root/usr/share/i18n/
		else
			ln -sf ../lib/locale $root$libdir/locale
		fi

		if [ "$SDECFG_PKG_GLIBC_TLS" != 1 ]; then
			# install linuxthread manpages
			#
			mkdir -p $root/usr/share/man/man3
			if [ -f /usr/bin/perl ]; then
				eval $MAKE -C ../linuxthreads/man \
					MANDIR=$root/usr/share/man/man3 all install
			fi

			# copy linuxthreads documentation
			#
			for x in ChangeLog Changes README FAQ.html Examples; do
				cp -a ../linuxthreads/$x \
					$docdir/$x.threads
			done
		fi

		# copy crypt documentation
		#
		cp ../crypt/README.ufc-crypt   $docdir/README.crypt

		# NSCD Init script and config
		#
		cp $confdir/nscd.conf $confdir/nsswitch.conf $root/etc/
	fi

	# Install ld.so.conf
	#
	# TODO
	# We should migrate to a more modular approach here, moving to package
	# based configuration in '/etc/ld.so.conf.d/$pkg.conf' and including all
	# dedicated conf files in a generic main 'ld.so.conf' like this:
	#
	# include /etc/ld.so.conf.d/*.conf
	#
	case $arch_machine in
		powerpc64|sparc64|x86_64|mips64)
			cat > $root/etc/ld.so.conf <<-EOT
			/lib64
			/lib
			/usr/lib64
			/usr/lib
			/usr/lib64/*/
			/usr/lib/*/
			/usr/*/lib64
			/usr/*/lib
			/opt/*/lib64
			/opt/*/lib
			/usr/local/lib64
			/usr/local/lib
EOT
			if [ "$SDECFG_MULTILIB" == 1 ] ; then
				cat >> $root/etc/ld.so.conf <<-EOT
				/lib32
				/usr/lib32
				/usr/lib32/*/
				/usr/*/lib32
				/opt/*/lib32
				/usr/local/lib32
EOT
			fi
			;;
		*)	cat > $root/etc/ld.so.conf <<-EOT
			/lib
			/usr/lib
			/usr/lib/*/
			/usr/*/lib
			/opt/*/lib
			/usr/local/lib
EOT
		;;
	esac

	# Move 'ldconfig' and 'sln' binaries
	#
	if [ -f "$root/usr/sbin/ldconfig" ] ; then
		mv -v $root/usr/sbin/ldconfig $root/sbin/ldconfig
	fi
	if [ -f "$root/usr/sbin/sln" ] ; then
		mv -v $root/usr/sbin/sln $root/sbin/sln
	fi

	# Create /lib/ld-lsb.so.1 symlink
	#
	if [ -f $root/$slibdir/ld-linux-$arch_machine.so.2 ] ; then
		ln -vfs ld-linux-$arch_machine.so.2 $root/$slibdir/ld-lsb.so.1
	elif [ -f $root/$slibdir/ld-linux.so.2 ] ; then
		ln -vfs ld-linux.so.2 $root/$slibdir/ld-lsb.so.1
	fi
}

# in stage 0 we only extract the headers and all is a bit easier ...
if atstage toolchain; then
	makeopt=
	makeinstopt="-k cross-compiling=yes install-headers"
fi

#if atstage cross; then
#	var_append patchfiles " " $confdir/no_path_in_glibcso.diff
#fi

hook_add prepatch 3 "glibc_prepatch"

# workaround for failing builds when building for i686 cpu family
case $arch_machine in
	i686) var_append extraconfopt ' ' "--disable-multi-arch" ;;
esac