#!/bin/sh
#	$NetBSD: mknative-gcc,v 1.25 2008/10/11 05:03:44 mrg Exp $
#
# Shell script for generating all the constants needed for a native
# platform build of src/gnu/dist/gcc.
#

# initialise

_TMPDIR=$2
_TOP=$3
_PLATFORM=$4
_VPATH=`grep VPATH ${_TMPDIR}/Makefile | sed 's,^.*=[ 	]*,,'`
_GNU_DIST=`cd ${_VPATH}; pwd`

. $_TOP/tools/gcc/mknative.common

##### gnu/lib/crtstuff #####

get_crtstuff () {
	_subdir="$1"
	mkdir -p $_TOP/gnu/lib/$_subdir/arch

	getvars gcc/Makefile \
		INCLUDES CRTSTUFF_CFLAGS CRTSTUFF_T_CFLAGS \
		tm_defines xm_file xm_defines \
		| write_mk gnu/lib/$_subdir/arch/$MACHINE_ARCH.mk
}

##### gnu/lib/libg2c #####

get_libg2c () {
	mkdir -p $_TOP/gnu/lib/libg2c3/arch/$MACHINE_ARCH

	write_c gnu/lib/libg2c3/arch/$MACHINE_ARCH/config.h <$_TMPDIR/$_PLATFORM/libf2c/libU77/config.h
	write_c gnu/lib/libg2c3/arch/$MACHINE_ARCH/g2c.h <$_TMPDIR/$_PLATFORM/libf2c/g2c.h

	{
		getvars $_PLATFORM/libf2c/Makefile \
			F2CEXT
		getvars $_PLATFORM/libf2c/libF77/Makefile \
			ALL_CFLAGS OBJS
		getvars $_PLATFORM/libf2c/libI77/Makefile \
			ALL_CFLAGS OBJS | sed 's,=,+=,'
		getvars $_PLATFORM/libf2c/libU77/Makefile \
			ALL_CFLAGS OBJS | sed 's,=,+=,'
	} | write_mk gnu/lib/libg2c3/arch/$MACHINE_ARCH/defs.mk
}

##### gnu/lib/libgcc #####

get_libgcc () {
	_subdir="$1"
	mkdir -p $_TOP/gnu/lib/lib$_subdir/arch

	case "$_subdir" in
	gcc3)
		_extravars="USE_COLLECT2 LIB2FUNCS_1 LIB2FUNCS_2 xm_file"
		_archsubdir=""
		;;
	gcc4)
		_extravars="COLLECT2 UNWIND_H xm_include_list"
		_archsubdir=""
		;;
	esac

	# DPBIT, FPBIT only used on mn10[23]00, we don't need them.
	# XXX we should probably grab everything Just In Case for
	# the future.
	{
		getvars gcc/Makefile \
			INCLUDES LIB2ADD LIB2ADDEH \
			LIB1ASMFUNCS LIB1ASMSRC \
			LIB2_DIVMOD_FUNCS LIB2FUNCS_ST \
			LIBGCC2_CFLAGS \
			SHLIB_MKMAP SHLIB_MKMAP_OPTS \
			SHLIB_MAPFILES SHLIB_NM_FLAGS \
			EXTRA_HEADERS xm_defines \
			tm_defines ${_extravars}
	} | write_mk gnu/lib/lib$_subdir/arch${_archsubdir}/$MACHINE_ARCH.mk
}

##### gnu/lib/libgcov #####

get_libgcov () {
	_subdir="$1"

	mkdir -p $_TOP/gnu/lib/lib$_subdir/libgcov/arch/$MACHINE_ARCH

	{
		getvars gcc/Makefile \
			LIBGCOV
	} | write_mk gnu/lib/lib$_subdir/libgcov/arch/$MACHINE_ARCH/defs.mk

	write_c gnu/lib/lib$_subdir/libgcov/arch/$MACHINE_ARCH/gcov-iov.h \
	   <$_TMPDIR/gcc/gcov-iov.h

}

##### gnu/usr.bin/gcc[34]/libiberty #####

get_gcc_libiberty () {
	_subdir="$1"
	mkdir -p $_TOP/gnu/usr.bin/$_subdir/libiberty/arch/$MACHINE_ARCH

	getvars libiberty/Makefile \
		ALLOCA EXTRA_OFILES LIBOBJS REQUIRED_OFILES \
		| write_mk gnu/usr.bin/$_subdir/libiberty/defs.mk

	write_c gnu/usr.bin/$_subdir/libiberty/arch/$MACHINE_ARCH/config.h \
		<$_TMPDIR/libiberty/config.h
}

##### gnu/lib/libobjc #####

get_libobjc () {
	case "$1" in
	*4)
		_subdir="$1/arch/$MACHINE_ARCH"
		_options="ALL_OPT_FILES"
		_unwind="UNWIND_H"
		;;
	*)
		_subdir="$1"
		_options=""
		_unwind=""
		;;
	esac

	mkdir -p $_TOP/gnu/lib/$_subdir

	{
		if [ -n "$_options" ]; then
			getvars gcc/Makefile $_options
		fi
		getvars $_PLATFORM/libobjc/Makefile \
			ALL_CFLAGS INCLUDES OBJS OBJC_H \
			| sed "s,$_GNU_DIST,\${GNUHOSTDIST},g"
		if [ -n "$_unwind" ]; then
			getvars gcc/Makefile $_unwind
		fi
	} | write_mk gnu/lib/$_subdir/defs.mk

	write_c gnu/lib/$_subdir/config.h \
		<$_TMPDIR/$_PLATFORM/libobjc/config.h
}

##### gnu/lib/libstdc++-v3 #####

get_libstdcxx_v3 () {
	_subdir="$1"
	mkdir -p $_TOP/gnu/lib/$_subdir/arch/$MACHINE_ARCH

	case ${_subdir} in
	*4)
		_src_CC_files="atomicity_file CCODECVT_CC CCOLLATE_CC CCTYPE_CC CMESSAGES_CC CMONEY_CC CNUMERIC_CC CTIME_CC CLOCALE_CC BASIC_FILE_CC"
		_headers1="host_headers debug_headers tr1_headers c_compatibility_headers_extra"
		_headers2="thread_host_headers host_headers_extra"
		_build_headers="c++allocator.h c++config.h cxxabi_tweaks.h gthr-default.h gthr-posix.h gthr-single.h gthr-tpf.h gthr.h"
		_unwind="UNWIND_H"
		;;
	*)
		_src_CC_files=""
		_headers1="target_headers"
		_headers2="thread_target_headers target_headers_extra"
		_build_headers="c++config.h gthr-default.h gthr-posix.h gthr-single.h gthr.h"
		_unwind=""
		;;
	esac

	# build files
	for h in $_build_headers; do
		write_c gnu/lib/$_subdir/arch/$MACHINE_ARCH/$h \
			<$_TMPDIR/$_PLATFORM/libstdc++-v3/include/$_PLATFORM/bits/$h
	done

	write_c gnu/lib/$_subdir/arch/$MACHINE_ARCH/config.h \
		<$_TMPDIR/$_PLATFORM/libstdc++-v3/config.h

	{
		# libmath
		getvars $_PLATFORM/libstdc++-v3/libmath/Makefile \
			libmath_la_SOURCES libmath_la_LIBADD

		# libsupc++
		getvars $_PLATFORM/libstdc++-v3/libsupc++/Makefile \
			sources | sed 's/^G_sources=/G_LIBSUPCXX_SOURCES=/'
		getvars $_PLATFORM/libstdc++-v3/libsupc++/Makefile \
			c_sources | sed 's/^G_c_sources=/G_LIBSUPCXX_C_SOURCES=/'

		# src
		getvars $_PLATFORM/libstdc++-v3/src/Makefile \
			sources $_src_CC_files SECTION_FLAGS | sed 's/^G_sources=/G_SRC_SOURCES=/'

		# include
		getvars $_PLATFORM/libstdc++-v3/include/Makefile \
			c_base_headers_rename std_headers_rename
		getvars $_PLATFORM/libstdc++-v3/include/Makefile \
			bits_headers backward_headers ext_headers c_base_headers_extra \
			$_headers1 | sed -e 's#/[^ 	][^ 	]*/##g' -e 's/\${GNUHOSTDIST}//g'
		getvars $_PLATFORM/libstdc++-v3/include/Makefile \
			$_headers2 | sed -e 's#\./[^ 	][^ 	]*/##g' -e 's/\${GNUHOSTDIST}//g'

		if [ -n "$_unwind" ]; then
			getvars gcc/Makefile $_unwind
		fi
	} | write_mk gnu/lib/$_subdir/arch/$MACHINE_ARCH/defs.mk
}

##### gnu/usr.bin/gcc3 #####

get_gcc () {
	_subdir="$1"
	mkdir -p $_TOP/gnu/usr.bin/$_subdir/arch/$MACHINE_ARCH
	case ${_subdir} in
	gcc4)
		mkdir -p $_TOP/gnu/usr.bin/$_subdir/libcpp/arch/$MACHINE_ARCH
		_buildname="BUILD_"
		_libcppsubdir=""
		_extravars="TM_H ALL_OPT_FILES"
		_hconfig_h=""
		_extravars2="tm_file_list build_xm_include_list"
		_extravars3="tm_p_include_list"
		
		;;
	*)
		_buildname="HOST_"
		_libcppsubdir="gcc/"
		_extravars=""
		_hconfig_h="HCONFIG_H"
		_extravars2=""
		_extravars3=""
		;;
	esac

	{
		getvars gcc/Makefile \
			${_buildname}EARLY_SUPPORT ${_buildname}ERRORS ${_buildname}PRINT \
			${_buildname}RTL ${_buildname}SUPPORT ${_buildname}VARRAY | \
		    sed -e 's#build/errors.o#build-errors.o#g' \
			-e 's#build/print-rtl.o#build-print-rtl.o#g' \
			-e 's#build/rtl.o#build-rtl.o#g' \
			-e 's#build/varray.o#build-varray.o#g' \
			-e 's#build/ggc-none.o#build-ggc-none.o#g' \
			-e 's#build/##g'
		getvars gcc/Makefile \
			ALL_CFLAGS ALL_CPPFLAGS C_AND_OBJC_OBJS C_OBJS CCCP_OBJS \
			GCOV_OBJS PROTO_OBJS ${_extravars1} \
			INCLUDES md_file OBJC_OBJS OBJS out_file version \
			BUILD_PREFIX RTL_H TREE_H ${_hconfig_h} BASIC_BLOCK_H GCC_H \
			GTFILES_SRCDIR GTFILES_FILES_FILES GTFILES_FILES_LANGS \
			GTFILES GTFILES_LANG_DIR_NAMES \
			tm_defines host_xm_file host_xm_defines tm_p_file \
			target_cpu_default ${_extravars} ${_extravars2} \
			lang_specs_files ${_extravars3}
		getvars gcc/Makefile \
			LIB2ADDEHDEP | sed 's/unwind.inc//'
		getvars gcc/Makefile \
			CXX_OBJS CXX_C_OBJS | sed 's/cp\///g'
		getvars gcc/Makefile \
			F77_OBJS | sed 's/f\///g'
		case ${_subdir} in
		gcc4)
			getvars libcpp/Makefile \
				libcpp_a_OBJS
			;;
		gcc3)
			getvars gcc/Makefile \
				LIBCPP_OBJS LIBCPP_H
			;;
		esac
		getvars gcc/Makefile \
			ENABLE_SHARED
		case ${_subdir} in
		gcc4)
			echo G_SHLIB_LINK="$CC -shared"
			echo G_SHLIB_MULTILIB=.
			;;
		gcc3)
			getvars gcc/Makefile \
				SHLIB_LINK SHLIB_MULTILIB
			;;
		esac
	} | write_mk gnu/usr.bin/$_subdir/arch/$MACHINE_ARCH/defs.mk

	case "$_subdir" in
	gcc3)
		hfiles='auto-host configargs cs-hconfig gencheck hconfig gthr-default'
		;;
	gcc4)
		write_c gnu/usr.bin/$_subdir/libcpp/arch/$MACHINE_ARCH/config.h <$_TMPDIR/libcpp/config.h
		hfiles='auto-host configargs gencheck gthr-default tm bconfig config multilib'
		;;
	esac
	for f in $hfiles; do
		write_c gnu/usr.bin/$_subdir/arch/$MACHINE_ARCH/$f.h <$_TMPDIR/gcc/$f.h
	done
}

##### main #####

case "$1" in
# .mk and .h files for libgcc bootstrap (from host build)
libgcc)
	get_libgcc gcc3
	get_crtstuff crtstuff3
	exit 0
	;;

libgcc4)
	get_libgcc gcc4
	get_crtstuff crtstuff4
	exit 0
	;;

# gcc files
gcc4)
	get_gcc gcc4
	get_libgcc gcc4
	get_libgcov gcc4
	get_crtstuff crtstuff4
	get_gcc_libiberty gcc4
	get_libobjc libobjc4
	get_libstdcxx_v3 libstdc++-v3_4
	exit 0
	;;

gcc3)
	get_gcc gcc3
	get_libg2c
	get_libgcc gcc3
	get_crtstuff crtstuff3
	get_gcc_libiberty gcc3
	get_libobjc libobjc3
	get_libstdcxx_v3 libstdc++-v3
	exit 0
	;;

*)	echo invalid arguments; exit 1;;
esac