#!/bin/sh
#	$NetBSD: toolchain2netbsd,v 1.12 2001/08/14 05:17:59 tv Exp $
#
# Shell script for generating all the constants needed for a native
# platform build of src/gnu/dist/toolchain.
#

TMPDIR=${TMPDIR:-/tmp}
MAKE=${MAKE:-make}

# usage: getvars MAKEFILE VARNAME [VARNAME...]
getvars () {
	_mf="$1"; shift
	$MAKE -f - _x_ <<EOF || { echo >&2 "ABORT: getvars $_mf $* failed"; exit 1; }
_x_:
.for var in $*
	@echo G_\${var}=\${\${var}:Q} | sed 's,$_VPATH,\$\${DIST},g'
.endfor
.include "$_TMPDIR/$_mf"
EOF
}

# usage: write_c FILENAME
write_c () {
	echo '/* This file is automatically generated.  DO NOT EDIT! */' >$1.tmp || \
		{ echo >&2 "ABORT: cannot create $1"; exit 1; }
	grep '$''NetBSD' toolchain2netbsd | sed 's,[#$],,g;s,.*,/* Generated from: & */,' >>$1.tmp
	echo '' >>$1.tmp
	writefile $1
}

# usage: write_mk FILENAME
write_mk () {
	echo '# This file is automatically generated.  DO NOT EDIT!' >$1.tmp || \
		{ echo >&2 "ABORT: cannot create $1"; exit 1; }
	grep '$''NetBSD' toolchain2netbsd | sed 's,[#$],,g;s,.*,# Generated from: &,' >>$1.tmp
	echo '#' >>$1.tmp
	writefile $1
}

writefile () {
	sed 's,netbsd\(elf\)*1[0-9\.]*,netbsd\1,' >>$1.tmp
	# will not overwrite a file that has the same content
	if cmp $1.tmp $1 >/dev/null 2>&1; then
		echo >&2 "$1 is unchanged"
		rm -f $1.tmp
	else
		mv -f $1.tmp $1
	fi
}

##### run GNU configure script #####

_TMPDIR=${TMPDIR:-/tmp}/gnu.dist.toolchain.tmp
MACHINE_ARCH=`sysctl -n hw.machine_arch`
cwd=`pwd`

# Basic configuration.
if [ ! -f $_TMPDIR/gprof/Makefile ]; then
	(mkdir -p $_TMPDIR && cd $_TMPDIR && \
		LDFLAGS=-lintl LANGUAGES="c c++ objc f77" \
		$cwd/dist/toolchain/configure --disable-shared)
fi

# Library configuration, for after g++ or g77 are installed.
if [ "`cc --version 2>/dev/null`" = "2.95.3" ]; then
	touch $_TMPDIR/tree-check.h # for libf2c
	export objc_cv_thread_file=single # for libobjc

	for dir in libf2c libio libobjc libstdc++; do
		if [ ! -f $_TMPDIR/$dir/Makefile ]; then
			(mkdir -p $_TMPDIR/$dir && cd $_TMPDIR/$dir && \
			export CC="gcc -idirafter $_TMPDIR -idirafter $cwd/usr.bin/gcc/arch/$MACHINE_ARCH" && \
			if [ -f $cwd/dist/toolchain/$dir/configure ]; then
				$cwd/dist/toolchain/$dir/configure --disable-shared
			else
				$cwd/dist/toolchain/configure --srcdir=$cwd/dist/toolchain/$dir --disable-shared
			fi)
		fi
	done

	if [ ! -f $_TMPDIR/libio/_G_config.h ]; then
		(cd $_TMPDIR/libio && \
		$cwd/dist/toolchain/libio/gen-params >tmp-config.h && \
		mv tmp-config.h _G_config.h)
	fi

	have_new_gcc=yes
fi

_VPATH=`grep VPATH ${_TMPDIR}/Makefile | sed 's,^.*= ,,'`

##### gnu/lib/libbfd #####

mkdir -p lib/libbfd/arch/$MACHINE_ARCH

{
	getvars bfd/Makefile \
		libbfd_la_DEPENDENCIES libbfd_la_OBJECTS DEFS INCLUDES TDEFAULTS
	getvars opcodes/Makefile \
		archdefs BFD_MACHINES libopcodes_la_SOURCES
} | write_mk lib/libbfd/arch/$MACHINE_ARCH/defs.mk

(cd $_TMPDIR/bfd && $MAKE bfd.h)

write_c lib/libbfd/arch/$MACHINE_ARCH/bfd.h <$_TMPDIR/bfd/bfd.h

{
	cat $_TMPDIR/bfd/config.h
	grep -v PACKAGE $_TMPDIR/opcodes/config.h
} | write_c lib/libbfd/arch/$MACHINE_ARCH/config.h

##### gnu/lib/libf2c #####

if [ "$have_new_gcc" = "yes" ]; then
	mkdir -p lib/libg2c/arch/$MACHINE_ARCH

	write_c lib/libg2c/arch/$MACHINE_ARCH/config.h <$_TMPDIR/libf2c/libU77/config.h
	write_c lib/libg2c/arch/$MACHINE_ARCH/g2c.h <$_TMPDIR/libf2c/g2c.h

	{
		getvars libf2c/Makefile \
			F2CEXT
		getvars libf2c/libF77/Makefile \
			ALL_CFLAGS OBJS
		getvars libf2c/libI77/Makefile \
			ALL_CFLAGS OBJ | sed 's,=,+=,'
		getvars libf2c/libU77/Makefile \
			ALL_CFLAGS OBJS | sed 's,=,+=,'
	} | write_mk lib/libg2c/arch/$MACHINE_ARCH/defs.mk
fi

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

# DPBIT, FPBIT only used on mn10[23]00, we don't need them.
getvars gcc/Makefile \
	CXX_EXTRA_HEADERS CXX_LIB2FUNCS CXX_LIB2SRCS \
	INCLUDES LIB2ADD LIB2FUNCS LIB2FUNCS_EH \
	LIBGCC2_CFLAGS MAYBE_USE_COLLECT2 \
	| write_mk lib/libgcc/$MACHINE_ARCH.mk

##### gnu/lib/libiberty #####

mkdir -p lib/libiberty/arch/$MACHINE_ARCH

getvars libiberty/Makefile \
	ALLOCA EXTRA_OFILES LIBOBJS REQUIRED_OFILES \
	| write_mk lib/libiberty/arch/$MACHINE_ARCH/defs.mk

write_c lib/libiberty/arch/$MACHINE_ARCH/config.h <$_TMPDIR/libiberty/config.h

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

if [ "$have_new_gcc" = "yes" ]; then
	getvars libobjc/Makefile \
		ALL_CFLAGS INCLUDES OBJS \
		| write_mk lib/libobjc/$MACHINE_ARCH.mk

	getvars libobjc/Makefile \
		OBJC_H \
		| write_mk lib/libobjc/defs.mk
fi

##### gnu/lib/libstdc++ #####

if [ "$have_new_gcc" = "yes" ]; then
	mkdir -p lib/libstdc++/arch/$MACHINE_ARCH

	(cd $_TMPDIR/libiberty && $MAKE needed-list)

	write_c lib/libstdc++/arch/$MACHINE_ARCH/_G_config.h <$_TMPDIR/libio/_G_config.h

	{
		getvars libio/Makefile \
			CINCLUDES LIBIOSTREAM_USE MT_CFLAGS XCFLAGS XCXXFLAGS

		# Ugly hack for backticks:
		(cd $_TMPDIR/libstdc++ && \
			printf 'x:\n\t@echo G_LIBIBERTY_OBJS=${LIBIBERTY_OBJS}\n.include "Makefile"' | $MAKE -f - x)

		getvars libstdc++/Makefile \
			COMFUNCS COMIO CXXINCLUDES HEADERS OBJS STRFUNCS STRIO

		(cd dist/toolchain/libstdc++ && echo 'STD_HEADERS=' *.h std/*.h std/*.cc std/*.tcc)
		(cd dist/toolchain/libstdc++/stl && echo 'STL_HEADERS=' *.h)
		(cd dist/toolchain/libio && echo 'LIBIO_HEADERS=' *.h)
	} | write_mk lib/libstdc++/arch/$MACHINE_ARCH/defs.mk
fi

##### gnu/usr.bin/binutils/common #####

mkdir -p usr.bin/binutils/common/arch/$MACHINE_ARCH

{
	getvars binutils/Makefile \
		DEFS INCLUDES man_MANS PROGRAMS TEXINFOS

	for f in `getvars binutils/Makefile PROGRAMS | sed 'y,-,_,;s,^[^=]*=,,'`; do
		getvars binutils/Makefile ${f}_OBJECTS ${f}_DEPENDENCIES
	done
} | write_mk usr.bin/binutils/common/arch/$MACHINE_ARCH/defs.mk

write_c usr.bin/binutils/common/arch/$MACHINE_ARCH/config.h <$_TMPDIR/binutils/config.h

##### gnu/usr.bin/binutils/gas #####

mkdir -p usr.bin/binutils/gas/arch/$MACHINE_ARCH

getvars gas/Makefile \
	DEFS INCLUDES OBJS \
	| write_mk usr.bin/binutils/gas/arch/$MACHINE_ARCH/defs.mk

for f in config itbl-cpu obj-format targ-cpu targ-env; do
	write_c usr.bin/binutils/gas/arch/$MACHINE_ARCH/$f.h <$_TMPDIR/gas/$f.h
done

##### gnu/usr.bin/binutils/gprof #####

mkdir -p usr.bin/binutils/gprof/arch/$MACHINE_ARCH

getvars gprof/Makefile \
	DEFS gprof_OBJECTS INCLUDES TEXINFOS \
	| write_mk usr.bin/binutils/gprof/arch/$MACHINE_ARCH/defs.mk

write_c usr.bin/binutils/gprof/arch/$MACHINE_ARCH/gconfig.h <$_TMPDIR/gprof/gconfig.h

##### gnu/usr.bin/binutils/ld #####

mkdir -p usr.bin/binutils/ld/arch/$MACHINE_ARCH

{
	getvars ld/Makefile \
		DEFS EMUL EMULATION_OFILES INCLUDES OFILES STRINGIFY TEXINFOS
	getvars ld/Makefile \
		target_alias | sed 's,[\._0-9A-Z]*$,,'
} | write_mk usr.bin/binutils/ld/arch/$MACHINE_ARCH/defs.mk

(cd $_TMPDIR/ld && $MAKE ldemul-list.h)

for f in config ldemul-list; do
	write_c usr.bin/binutils/ld/arch/$MACHINE_ARCH/$f.h <$_TMPDIR/ld/$f.h
done

##### gnu/usr.bin/gcc #####

mkdir -p usr.bin/gcc/arch/$MACHINE_ARCH

{
	getvars gcc/Makefile \
		ALL_CFLAGS ALL_CPPFLAGS C_AND_OBJC_OBJS C_OBJS CCCP_OBJS \
		GCOV_OBJS HOST_LIBS HOST_PRINT HOST_RTL HOST_RTLANAL \
		INCLUDES md_file OBJC_OBJS OBJS out_file version
	getvars gcc/cp/Makefile \
		CXX_OBJS
	getvars gcc/f/Makefile \
		F77_OBJS
} | write_mk usr.bin/gcc/arch/$MACHINE_ARCH/defs.mk

for f in auto-host config gencheck hconfig options specs tconfig tm; do
	write_c usr.bin/gcc/arch/$MACHINE_ARCH/$f.h <$_TMPDIR/gcc/$f.h
done

##### gnu/usr.bin/gdb #####

mkdir -p usr.bin/gdb/arch/$MACHINE_ARCH

{
	getvars gdb/Makefile \
		INTERNAL_CFLAGS LIBGDB_OBS
	getvars readline/Makefile \
		CCFLAGS OBJECTS
} | write_mk usr.bin/gdb/arch/$MACHINE_ARCH/defs.mk

(cd $_TMPDIR/gdb && $MAKE init.c version.c)

cat $_TMPDIR/gdb/config.h $_TMPDIR/readline/config.h \
	| write_c usr.bin/gdb/arch/$MACHINE_ARCH/config.h

write_c usr.bin/gdb/arch/$MACHINE_ARCH/init.c <$_TMPDIR/gdb/init.c
write_c usr.bin/gdb/arch/$MACHINE_ARCH/version.c <$_TMPDIR/gdb/version.c

for f in nm tm xm; do
	ls -l $_TMPDIR/gdb/$f.h | sed 's,^.*->.*/gdb/config/,,;s,^,#include <,;s,$,>,' \
		| write_c usr.bin/gdb/arch/$MACHINE_ARCH/$f.h
done

#	-rm -rf ${_TMPDIR}