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mknative-gcc revision 1.2
      1 #!/bin/sh
      2 #	$NetBSD: mknative-gcc,v 1.2 2003/07/28 01:29:01 mrg Exp $
      3 #
      4 # Shell script for generating all the constants needed for a native
      5 # platform build of src/gnu/dist/toolchain.
      6 #
      7 
      8 bomb () {
      9 	echo >&1 "ABORT: $*"
     10 	exit 1
     11 }
     12 
     13 # usage: getvars MAKEFILE VARNAME [VARNAME...]
     14 getvars () {
     15 	_mf="$1"; shift
     16 	$MAKE -f - _x_ <<EOF || bomb "getvars $_mf $* failed"
     17 _x_:
     18 .for var in $*
     19 	@echo G_\${var}=\${\${var}:Q} | sed 's,$_VPATH,\$\${GNUHOSTDIST},g'
     20 .endfor
     21 .include "$_TMPDIR/$_mf"
     22 EOF
     23 }
     24 
     25 # usage: write_c FILENAME
     26 write_c () {
     27 	echo '/* This file is automatically generated.  DO NOT EDIT! */' >$_TOP/$1.tmp || \
     28 		bomb "cannot create $1"
     29 	grep '$''NetBSD' $0 | sed 's,[#$],,g;s,.*,/* Generated from: & */,' >>$_TOP/$1.tmp
     30 	echo '' >>$_TOP/$1.tmp
     31 	writefile $1
     32 }
     33 
     34 # usage: write_mk FILENAME
     35 write_mk () {
     36 	echo '# This file is automatically generated.  DO NOT EDIT!' >$_TOP/$1.tmp || \
     37 		bomb "cannot create $1"
     38 	grep '$''NetBSD' $0 | sed 's,[#$],,g;s,.*,# Generated from: &,' >>$_TOP/$1.tmp
     39 	echo '#' >>$_TOP/$1.tmp
     40 	writefile $1
     41 }
     42 
     43 writefile () {
     44 	sed -e 's,netbsd\(elf\)*1[0-9\.]*\(_\)*[A-Z]*,netbsd\1,' \
     45 	    -e 's,^/\* #undef HAVE_MMAP \*/$,#define HAVE_MMAP 1,' >>$_TOP/$1.tmp
     46 
     47 	# Compare new file, sans "generated from" comments and RCS Id, to
     48 	# old file.  If they match, don't change anything.
     49 	rm -f $_TMPDIR/.1 $_TMPDIR/.2
     50 	grep -v 'Generated from:' $_TOP/$1 >$_TMPDIR/.1 2>/dev/null
     51 	grep -v 'Generated from:' $_TOP/$1.tmp >$_TMPDIR/.2
     52 
     53 	# will not overwrite a file that has the same content
     54 	if cmp $_TMPDIR/.1 $_TMPDIR/.2 >/dev/null 2>&1; then
     55 		rm -f $_TOP/$1.tmp
     56 	else
     57 		echo >&2 "$1 changed"
     58 		mv -f $_TOP/$1.tmp $_TOP/$1
     59 	fi
     60 }
     61 
     62 ##### gnu/lib/libg2c #####
     63 
     64 get_libg2c () {
     65 	mkdir -p $_TOP/gnu/lib/libg2c3/arch/$MACHINE_ARCH
     66 
     67 	write_c gnu/lib/libg2c3/arch/$MACHINE_ARCH/config.h <$_TMPDIR/$_PLATFORM/libf2c/libU77/config.h
     68 	write_c gnu/lib/libg2c3/arch/$MACHINE_ARCH/g2c.h <$_TMPDIR/$_PLATFORM/libf2c/g2c.h
     69 
     70 	{
     71 		getvars $_PLATFORM/libf2c/Makefile \
     72 			F2CEXT
     73 		getvars $_PLATFORM/libf2c/libF77/Makefile \
     74 			ALL_CFLAGS OBJS
     75 		getvars $_PLATFORM/libf2c/libI77/Makefile \
     76 			ALL_CFLAGS OBJS | sed 's,=,+=,'
     77 		getvars $_PLATFORM/libf2c/libU77/Makefile \
     78 			ALL_CFLAGS OBJS | sed 's,=,+=,'
     79 	} | write_mk gnu/lib/libg2c3/arch/$MACHINE_ARCH/defs.mk
     80 }
     81 
     82 ##### gnu/lib/libgcc #####
     83 
     84 get_libgcc () {
     85 	mkdir -p $_TOP/gnu/usr.bin/gcc3/arch/$MACHINE_ARCH $_TOP/gnu/lib/libgcc3
     86 
     87 	# DPBIT, FPBIT only used on mn10[23]00, we don't need them.
     88 	getvars gcc/Makefile \
     89 		CXX_EXTRA_HEADERS CXX_LIB2FUNCS CXX_LIB2SRCS \
     90 		INCLUDES LIB2ADD LIB2ADDEH LIB2FUNCS_1 LIB2FUNCS_2 \
     91 		LIB2_DIVMOD_FUNCS LIB2FUNCS_ST \
     92 		LIBGCC2_CFLAGS MAYBE_USE_COLLECT2 \
     93 		tm_defines xm_file xm_defines \
     94 		| write_mk gnu/lib/libgcc3/$MACHINE_ARCH.mk
     95 }
     96 
     97 ##### gnu/usr.bin/gcc3/libiberty #####
     98 
     99 get_gcc3_libiberty () {
    100 	mkdir -p $_TOP/gnu/usr.bin/gcc3/libiberty
    101 
    102 	getvars libiberty/Makefile \
    103 		ALLOCA EXTRA_OFILES LIBOBJS REQUIRED_OFILES \
    104 		| write_mk gnu/usr.bin/gcc3/libiberty/defs.mk
    105 
    106 	write_c gnu/usr.bin/gcc3/libiberty/config.h \
    107 		<$_TMPDIR/libiberty/config.h
    108 }
    109 
    110 ##### gnu/lib/libobjc #####
    111 
    112 get_libobjc () {
    113 	mkdir -p $_TOP/gnu/lib/libobjc3
    114 
    115 	getvars $_PLATFORM/libobjc/Makefile \
    116 		ALL_CFLAGS INCLUDES OBJS OBJC_H \
    117 		| sed "s,$_GNU_DIST,\$\${GNUHOSTDIST},g" \
    118 		| write_mk gnu/lib/libobjc3/defs.mk
    119 }
    120 
    121 ##### gnu/lib/libstdc++-v3 #####
    122 
    123 get_libstdcxx_v3 () {
    124 	mkdir -p $_TOP/gnu/lib/libstdc++-v3/arch/$MACHINE_ARCH
    125 
    126 	# build files
    127 	for h in gthr.h gthr-single.h gthr-posix.h gthr-default.h c++config.h; do
    128 		write_c gnu/lib/libstdc++-v3/arch/$MACHINE_ARCH/$h \
    129 			<$_TMPDIR/$_PLATFORM/libstdc++-v3/include/$_PLATFORM/bits/$h
    130 	done
    131 
    132 	{
    133 		# libmath
    134 		getvars $_PLATFORM/libstdc++-v3/libmath/Makefile \
    135 			libmath_la_SOURCES libmath_la_LIBADD
    136 
    137 		# libsupc++
    138 		getvars $_PLATFORM/libstdc++-v3/libsupc++/Makefile \
    139 			sources | sed 's/^G_sources=/G_LIBSUPCXX_SOURCES=/'
    140 		getvars $_PLATFORM/libstdc++-v3/libsupc++/Makefile \
    141 			c_sources | sed 's/^G_c_sources=/G_LIBSUPCXX_C_SOURCES=/'
    142 
    143 		# src
    144 		getvars $_PLATFORM/libstdc++-v3/src/Makefile \
    145 			sources SECTION_FLAGS | sed 's/^G_sources=/G_SRC_SOURCES=/'
    146 
    147 		# include
    148 		getvars $_PLATFORM/libstdc++-v3/include/Makefile \
    149 			c_base_headers_rename std_headers_rename
    150 		getvars $_PLATFORM/libstdc++-v3/include/Makefile \
    151 			bits_headers backward_headers ext_headers c_base_headers_extra \
    152 			target_headers | sed 's#/[^ 	][^ 	]*/##g'
    153 		getvars $_PLATFORM/libstdc++-v3/include/Makefile \
    154 			thread_target_headers target_headers_extra | sed 's#\./[^ 	][^ 	]*/##g'
    155 	} | write_mk gnu/lib/libstdc++-v3/arch/$MACHINE_ARCH/defs.mk
    156 }
    157 
    158 ##### gnu/usr.bin/gcc3 #####
    159 
    160 get_gcc () {
    161 	mkdir -p $_TOP/gnu/usr.bin/gcc3/arch/$MACHINE_ARCH
    162 
    163 	{
    164 		getvars gcc/Makefile \
    165 			ALL_CFLAGS ALL_CPPFLAGS C_AND_OBJC_OBJS C_OBJS CCCP_OBJS \
    166 			GCOV_OBJS PROTO_OBJS HOST_PRINT HOST_RTL HOST_RTLANAL \
    167 			HOST_SUPPORT HOST_EARLY_SUPPORT HOST_ERRORS HOST_VARRAY \
    168 			INCLUDES md_file OBJC_OBJS OBJS out_file version \
    169 			BUILD_PREFIX RTL_H TREE_H HCONFIG_H BASIC_BLOCK_H GCC_H \
    170 			GTFILES_SRCDIR GTFILES_FILES_FILES GTFILES_FILES_LANGS \
    171 			GTFILES GTFILES_LANG_DIR_NAMES \
    172 			tm_defines host_xm_file host_xm_defines tm_p_file \
    173 			target_cpu_default \
    174 			LIBCPP_OBJS LIBCPP_H \
    175 			lang_specs_files
    176 		getvars gcc/Makefile \
    177 			LIB2ADDEHDEP | sed 's/unwind.inc//'
    178 		getvars gcc/Makefile \
    179 			CXX_OBJS CXX_C_OBJS | sed 's/cp\///g'
    180 		getvars gcc/Makefile \
    181 			F77_OBJS | sed 's/f\///g'
    182 	} | write_mk gnu/usr.bin/gcc3/arch/$MACHINE_ARCH/defs.mk
    183 
    184 	for f in auto-build auto-host configargs cs-hconfig gencheck hconfig; do
    185 		write_c gnu/usr.bin/gcc3/arch/$MACHINE_ARCH/$f.h <$_TMPDIR/gcc/$f.h
    186 	done
    187 }
    188 
    189 ##### main #####
    190 
    191 _TMPDIR=$2
    192 _TOP=$3
    193 _PLATFORM=$4
    194 _VPATH=`grep VPATH ${_TMPDIR}/Makefile | sed 's,^.*= ,,'`
    195 _GNU_DIST=`cd ${_VPATH}; pwd`
    196 
    197 case $1 in
    198 libgcc)	# .mk and .h files for libgcc bootstrap (from host build)
    199 	get_libgcc
    200 	exit 0
    201 	;;
    202 
    203 gcc3)
    204 	get_gcc
    205 	get_libg2c
    206 	get_libgcc
    207 	get_gcc3_libiberty
    208 	get_libobjc
    209 	get_libstdcxx_v3
    210 	exit 0
    211 	;;
    212 
    213 *)	echo invalid arguments; exit 1;;
    214 esac
    215