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build.sh revision 1.58.2.6
      1 #! /usr/bin/env sh
      2 #  $NetBSD: build.sh,v 1.58.2.6 2003/08/12 18:27:23 tron Exp $
      3 #
      4 # Top level build wrapper, for a system containing no tools.
      5 #
      6 # This script should run on any POSIX-compliant shell.  For systems
      7 # with a strange /bin/sh, "ksh" or "bash" may be an ample alternative.
      8 #
      9 # Note, however, that due to the way the interpreter is invoked above,
     10 # if a POSIX-compliant shell is the first in the PATH, you won't have
     11 # to take any further action.
     12 #
     13 
     14 bomb () {
     15 	echo ""
     16 	echo "ERROR: $@"
     17 	echo "*** BUILD ABORTED ***"
     18 	exit 1
     19 }
     20 [ -d usr.bin/make ] || bomb "build.sh must be run from the top source level"
     21 [ -f share/mk/bsd.own.mk ] || bomb "src/share/mk is missing; please re-fetch the source tree"
     22 
     23 # If $PWD is a valid name of the current directory, POSIX mandates that pwd
     24 # return it by default which causes problems in the presence of symlinks.
     25 # Unsetting PWD is simpler than changing every occurrence of pwd to use -P.
     26 #
     27 # XXX Except that doesn't work on Solaris.
     28 unset PWD
     29 if [ "x`uname -s`" = "xSunOS" ]; then
     30 	TOP=`pwd -P`
     31 else
     32 	TOP=`pwd`
     33 fi
     34 
     35 getarch () {
     36 	# Translate a MACHINE into a default MACHINE_ARCH.
     37 	case $MACHINE in
     38 		acorn26|acorn32|cats|netwinder|shark|*arm)
     39 			MACHINE_ARCH=arm;;
     40 
     41 		sun2)
     42 			MACHINE_ARCH=m68000;;
     43 
     44 		amiga|atari|cesfic|hp300|sun3|*68k)
     45 			MACHINE_ARCH=m68k;;
     46 
     47 		mipsco|newsmips|sbmips|sgimips)
     48 			MACHINE_ARCH=mipseb;;
     49 
     50 		algor|arc|cobalt|evbmips|hpcmips|playstation2|pmax)
     51 			MACHINE_ARCH=mipsel;;
     52 
     53 		pc532)
     54 			MACHINE_ARCH=ns32k;;
     55 
     56 		bebox|mvmeppc|prep|sandpoint|walnut|*ppc)
     57 			MACHINE_ARCH=powerpc;;
     58 
     59 		evbsh3|mmeye)
     60 			MACHINE_ARCH=sh3eb;;
     61 
     62 		dreamcast|hpcsh)
     63 			MACHINE_ARCH=sh3el;;
     64 
     65 		alpha|i386|sparc|sparc64|vax|x86_64)
     66 			MACHINE_ARCH=$MACHINE;;
     67 
     68 		*)	bomb "unknown target MACHINE: $MACHINE";;
     69 	esac
     70 }
     71 
     72 validatearch () {
     73 	# Ensure that the MACHINE_ARCH exists (and is supported by build.sh).
     74 	case $MACHINE_ARCH in
     75 		alpha|arm|armeb|i386|m68000|m68k|mipse[bl]|powerpc|sh3e[bl]|sparc|sparc64|vax|x86_64)
     76 			;;
     77 
     78 		*)	bomb "unknown target MACHINE_ARCH: $MACHINE_ARCH";;
     79 	esac
     80 }
     81 
     82 getmakevar () {
     83 	$make -m ${TOP}/share/mk -s -f- _x_ <<EOF
     84 _x_:
     85 	echo \${$1}
     86 .include <bsd.prog.mk>
     87 EOF
     88 }
     89 
     90 resolvepath () {
     91 	case $OPTARG in
     92 	/*)	;;
     93 	*)	OPTARG="$TOP/$OPTARG";;
     94 	esac
     95 }
     96 
     97 usage () {
     98 	echo "Usage:"
     99 	echo "$0 [-bdorUu] [-a arch] [-B buildid] [-j njob] [-m mach] "
    100 	echo "   [-w wrapper] [-D dest] [-M obj] [-O obj] [-R release] [-T tools]"
    101 	echo ""
    102 	echo "    -a: set MACHINE_ARCH to arch (otherwise deduced from MACHINE)"
    103 	echo "    -B: set BUILDID to buildid"
    104 	echo "    -b: build nbmake and nbmake wrapper script, if needed"
    105 	echo "    -D: set DESTDIR to dest"
    106 	echo "    -d: build a full distribution into DESTDIR (including etc files)"
    107 	echo "    -j: Run up to njob jobs in parallel; see make(1)"
    108 	echo "    -M: set obj root directory to obj (sets MAKEOBJDIRPREFIX)"
    109 	echo "    -m: set MACHINE to mach (not required if NetBSD native)"
    110 	echo "    -n: show commands that would be executed, but do not execute them"
    111 	echo "    -O: set obj root directory to obj (sets a MAKEOBJDIR pattern)"
    112 	echo "    -o: set MKOBJDIRS=no (do not create objdirs at start of build)"
    113 	echo "    -R: build a release (and set RELEASEDIR to release)"
    114 	echo "    -r: remove contents of TOOLDIR and DESTDIR before building"
    115 	echo "    -T: set TOOLDIR to tools"
    116 	echo "    -t: build and install tools only (implies -b)"
    117 	echo "    -U: set UNPRIVED"
    118 	echo "    -u: set UPDATE"
    119 	echo "    -w: create nbmake script at wrapper (default TOOLDIR/bin/nbmake-MACHINE)"
    120 	echo ""
    121 	echo "Note: if -T is unset and TOOLDIR is not set in the environment,"
    122 	echo "      nbmake will be [re]built unconditionally."
    123 	exit 1
    124 }
    125 
    126 # Set defaults.
    127 MAKEFLAGS=
    128 buildtarget=build
    129 do_buildsystem=true
    130 do_buildonlytools=false
    131 do_rebuildmake=false
    132 do_removedirs=false
    133 makeenv=
    134 makewrapper=
    135 opt_a=no
    136 opts='a:B:bdhj:m:nortuw:D:M:O:R:T:U'
    137 runcmd=
    138 
    139 if type getopts >/dev/null 2>&1; then
    140 	# Use POSIX getopts.
    141 	getoptcmd='getopts $opts opt && opt=-$opt'
    142 	optargcmd=':'
    143 else
    144 	type getopt >/dev/null 2>&1 || bomb "/bin/sh shell is too old; try ksh or bash"
    145 
    146 	# Use old-style getopt(1) (doesn't handle whitespace in args).
    147 	args="`getopt $opts $*`"
    148 	[ $? = 0 ] || usage
    149 	set -- $args
    150 
    151 	getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
    152 	optargcmd='OPTARG="$1"; shift'
    153 fi
    154 
    155 # Parse command line options.
    156 while eval $getoptcmd; do case $opt in
    157 	-a)	eval $optargcmd
    158 		MACHINE_ARCH=$OPTARG; opt_a=yes;;
    159 
    160 	-B)	eval $optargcmd
    161 		BUILDID=$OPTARG;;
    162 
    163 	-b)	do_buildsystem=false;;
    164 
    165 	-d)	buildtarget=distribution;;
    166 
    167 	-j)	eval $optargcmd
    168 		parallel="-j $OPTARG";;
    169 
    170 	# -m overrides MACHINE_ARCH unless "-a" is specified
    171 	-m)	eval $optargcmd
    172 		MACHINE=$OPTARG; [ "$opt_a" != "yes" ] && getarch;;
    173 
    174 	-n)	runcmd=echo;;
    175 
    176 	-o)	MKOBJDIRS=no;;
    177 
    178 	-r)	do_removedirs=true; do_rebuildmake=true;;
    179 
    180 	-t)	do_buildonlytools=true; do_buildsystem=false;;
    181 
    182 	-U)	UNPRIVED=yes; export UNPRIVED
    183 		makeenv="$makeenv UNPRIVED";;
    184 
    185 	-u)	UPDATE=yes; export UPDATE
    186 		makeenv="$makeenv UPDATE";;
    187 
    188 	-w)	eval $optargcmd; resolvepath
    189 		makewrapper="$OPTARG";;
    190 
    191 	-D)	eval $optargcmd; resolvepath
    192 		DESTDIR="$OPTARG"; export DESTDIR
    193 		makeenv="$makeenv DESTDIR";;
    194 
    195 	-M)	eval $optargcmd; resolvepath
    196 		MAKEOBJDIRPREFIX="$OPTARG"; export MAKEOBJDIRPREFIX
    197 		makeobjdir=$OPTARG
    198 		makeenv="$makeenv MAKEOBJDIRPREFIX";;
    199 
    200 	-O)	eval $optargcmd; resolvepath
    201 		MAKEOBJDIR="\${.CURDIR:C,^$TOP,$OPTARG,}"; export MAKEOBJDIR
    202 		makeobjdir=$OPTARG
    203 		makeenv="$makeenv MAKEOBJDIR";;
    204 
    205 	-R)	eval $optargcmd; resolvepath
    206 		RELEASEDIR=$OPTARG; export RELEASEDIR
    207 		makeenv="$makeenv RELEASEDIR"
    208 		buildtarget=release;;
    209 
    210 	-T)	eval $optargcmd; resolvepath
    211 		TOOLDIR="$OPTARG"; export TOOLDIR;;
    212 
    213 	--)		break;;
    214 	-'?'|-h)	usage;;
    215 esac; done
    216 
    217 # Set up MACHINE*.  On a NetBSD host, these are allowed to be unset.
    218 if [ -z "$MACHINE" ]; then
    219 	if [ "`uname -s 2>/dev/null`" != "NetBSD" ]; then
    220 		echo "MACHINE must be set, or -m must be used, for cross builds."
    221 		echo ""; usage
    222 	fi
    223 	MACHINE=`uname -m`
    224 fi
    225 [ -n "$MACHINE_ARCH" ] || getarch
    226 validatearch
    227 
    228 # Set up default make(1) environment.
    229 makeenv="$makeenv TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
    230 if [ ! -z "$BUILDID" ]; then
    231 	makeenv="$makeenv BUILDID"
    232 fi
    233 MAKEFLAGS="-m $TOP/share/mk $MAKEFLAGS MKOBJDIRS=${MKOBJDIRS-yes}"
    234 export MAKEFLAGS MACHINE MACHINE_ARCH
    235 
    236 # Test make source file timestamps against installed nbmake binary,
    237 # if TOOLDIR is pre-set.
    238 #
    239 # Note that we do NOT try to grovel "mk.conf" here to find out if TOOLDIR
    240 # is set there, because it can contain make variable expansions and other
    241 # stuff only parseable *after* we have a working nbmake.  So this logic
    242 # can only work if the user has pre-set TOOLDIR in the environment or
    243 # used the -T option to build.sh.
    244 #
    245 make="${TOOLDIR-nonexistent}/bin/nbmake"
    246 if [ -x $make ]; then
    247 	for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
    248 		if [ $f -nt $make ]; then
    249 			do_rebuildmake=true; break
    250 		fi
    251 	done
    252 else
    253 	do_rebuildmake=true
    254 fi
    255 
    256 # Build bootstrap nbmake if needed.
    257 if $do_rebuildmake; then
    258 	$runcmd echo "===> Bootstrapping nbmake"
    259 	tmpdir="${TMPDIR-/tmp}/nbbuild$$"
    260 
    261 	$runcmd mkdir "$tmpdir" || bomb "cannot mkdir: $tmpdir"
    262 	trap "cd /; rm -r -f \"$tmpdir\"" 0
    263 	trap "exit 1" 1 2 3 15
    264 	$runcmd cd "$tmpdir"
    265 
    266 	$runcmd env CC="${HOST_CC-cc}" CPPFLAGS="${HOST_CPPFLAGS}" CFLAGS="${HOST_CFLAGS--O}" LDFLAGS="${HOST_LDFLAGS}" \
    267 		sh "$TOP/tools/make/configure" || bomb "configure of nbmake failed"
    268 	$runcmd sh buildmake.sh || bomb "build of nbmake failed"
    269 
    270 	make="$tmpdir/nbmake"
    271 	$runcmd cd "$TOP"
    272 	$runcmd rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
    273 fi
    274 
    275 if [ "$runcmd" = "echo" ]; then
    276 	USE_NEW_TOOLCHAIN=yes
    277 else
    278 	USE_NEW_TOOLCHAIN=`getmakevar USE_NEW_TOOLCHAIN`
    279 fi
    280 if [ "${USE_NEW_TOOLCHAIN}" = "" ]; then
    281 	echo "ERROR: build.sh (new toolchain) is not yet enabled for"
    282 	echo
    283 	echo "MACHINE: ${MACHINE}"
    284 	echo "MACHINE_ARCH: ${MACHINE_ARCH}"
    285 	echo
    286 	echo "All builds for this platform should be done via a traditional make"
    287 	echo
    288 	echo "If you wish to test using the new toolchain set"
    289 	echo
    290 	echo "USE_NEW_TOOLCHAIN=yes"
    291 	echo
    292 	echo "in either the environment or mk.conf and rerun"
    293 	echo
    294 	echo "$0 $*"
    295 	exit 1
    296 fi
    297 
    298 # If TOOLDIR isn't already set, make objdirs in "tools" in case the
    299 # default setting from <bsd.own.mk> is used.
    300 if [ -z "$TOOLDIR" ] && [ "$MKOBJDIRS" != "no" ]; then
    301 	$runcmd cd tools
    302 	$runcmd $make -m ${TOP}/share/mk obj NOSUBDIR= || exit 1
    303 	$runcmd cd ..
    304 fi
    305 
    306 #
    307 # If setting -M or -O to root an obj dir make sure the base directory is made
    308 # before continuing as bsd.own.mk will need this to pick up _SRC_TOP_OBJ_
    309 #
    310 if [ "$MKOBJDIRS" != "no" ] && [ ! -z "$makeobjdir" ]; then
    311 	$runcmd mkdir -p "$makeobjdir"
    312 fi
    313 
    314 # Find DESTDIR and TOOLDIR.
    315 if [ "$runcmd" = "echo" ]; then
    316 	# shown symbolically with -n because these may come from mk.conf
    317 	DESTDIR='$DESTDIR'
    318 	TOOLDIR='$TOOLDIR'
    319 else
    320 	DESTDIR=`getmakevar DESTDIR`;
    321 	[ $? = 0 ] || bomb "getmakevar DESTDIR failed";
    322 	echo "===> DESTDIR path: $DESTDIR"
    323 
    324 	TOOLDIR=`getmakevar TOOLDIR`;
    325 	[ $? = 0 ] || bomb "getmakevar TOOLDIR failed";
    326 	echo "===> TOOLDIR path: $TOOLDIR"
    327 
    328 	export DESTDIR TOOLDIR
    329 fi
    330 
    331 # Check validity of TOOLDIR and DESTDIR.
    332 if [ -z "$TOOLDIR" ] || [ "$TOOLDIR" = "/" ]; then
    333 	bomb "TOOLDIR '$TOOLDIR' invalid"
    334 fi
    335 removedirs="$TOOLDIR"
    336 
    337 if [ -z "$DESTDIR" ] || [ "$DESTDIR" = "/" ]; then
    338 	if $do_buildsystem && \
    339 	   ([ "$buildtarget" != "build" ] || \
    340 	    [ "`uname -s 2>/dev/null`" != "NetBSD" ] || \
    341 	    [ "`uname -m`" != "$MACHINE" ]); then
    342 		bomb "DESTDIR must be set to a non-root path for cross builds or -d or -R."
    343 	elif $do_buildsystem; then
    344 		echo "===> WARNING: Building to /."
    345 		echo "===> If your kernel is not up to date, this may cause the system to break!"
    346 	fi
    347 else
    348 	removedirs="$removedirs $DESTDIR"
    349 fi
    350 
    351 # Remove the target directories.
    352 if $do_removedirs; then
    353 	for f in $removedirs; do
    354 		echo "===> Removing $f"
    355 		$runcmd rm -r -f $f
    356 	done
    357 fi
    358 
    359 # Recreate $TOOLDIR.
    360 $runcmd mkdir -p "$TOOLDIR/bin" || bomb "mkdir of '$TOOLDIR/bin' failed"
    361 
    362 # Install nbmake if it was built.
    363 if $do_rebuildmake; then
    364 	$runcmd rm -f "$TOOLDIR/bin/nbmake"
    365 	$runcmd cp $make "$TOOLDIR/bin/nbmake"
    366 	$runcmd rm -r -f "$tmpdir"
    367 	trap 0 1 2 3 15
    368 fi
    369 
    370 # Build a nbmake wrapper script, usable by hand as well as by build.sh.
    371 if [ -z "$makewrapper" ]; then
    372 	makewrapper="$TOOLDIR/bin/nbmake-$MACHINE"
    373 	if [ ! -z "$BUILDID" ]; then
    374 		makewrapper="$makewrapper-$BUILDID"
    375 	fi
    376 fi
    377 
    378 $runcmd rm -f "$makewrapper"
    379 if [ "$runcmd" = "echo" ]; then
    380 	echo 'cat <<EOF >'$makewrapper
    381 	makewrapout=
    382 else
    383 	makewrapout=">>\$makewrapper"
    384 fi
    385 
    386 eval cat <<EOF $makewrapout
    387 #! /bin/sh
    388 # Set proper variables to allow easy "make" building of a NetBSD subtree.
    389 # Generated from:  \$NetBSD: build.sh,v 1.58.2.6 2003/08/12 18:27:23 tron Exp $
    390 #
    391 
    392 EOF
    393 for f in $makeenv; do
    394 	eval echo "$f=\'\$`echo $f`\'\;\ export\ $f" $makewrapout
    395 done
    396 eval echo "USETOOLS=yes\; export USETOOLS" $makewrapout
    397 
    398 eval cat <<'EOF' $makewrapout
    399 
    400 exec "$TOOLDIR/bin/nbmake" ${1+"$@"}
    401 EOF
    402 [ "$runcmd" = "echo" ] && echo EOF
    403 $runcmd chmod +x "$makewrapper"
    404 
    405 if $do_buildsystem; then
    406 	${runcmd-exec} "$makewrapper" $parallel $buildtarget
    407 elif $do_buildonlytools; then
    408 	if [ "$MKOBJDIRS" != "no" ]; then
    409 		$runcmd "$makewrapper" $parallel obj-tools || exit 1
    410 	fi
    411 	$runcmd cd tools
    412 	if [ "$UPDATE" = "" ]; then
    413 		${runcmd-exec} "$makewrapper" cleandir dependall install
    414 	else
    415 		${runcmd-exec} "$makewrapper" dependall install
    416 	fi
    417 fi
    418