build.sh revision 1.122
1#! /usr/bin/env sh
2#	$NetBSD: build.sh,v 1.122 2003/10/26 03:12:21 lukem Exp $
3#
4# Copyright (c) 2001-2003 The NetBSD Foundation, Inc.
5# All rights reserved.
6#
7# This code is derived from software contributed to The NetBSD Foundation
8# by Todd Vierling and Luke Mewburn.
9#
10# Redistribution and use in source and binary forms, with or without
11# modification, are permitted provided that the following conditions
12# are met:
13# 1. Redistributions of source code must retain the above copyright
14#    notice, this list of conditions and the following disclaimer.
15# 2. Redistributions in binary form must reproduce the above copyright
16#    notice, this list of conditions and the following disclaimer in the
17#    documentation and/or other materials provided with the distribution.
18# 3. All advertising materials mentioning features or use of this software
19#    must display the following acknowledgement:
20#        This product includes software developed by the NetBSD
21#        Foundation, Inc. and its contributors.
22# 4. Neither the name of The NetBSD Foundation nor the names of its
23#    contributors may be used to endorse or promote products derived
24#    from this software without specific prior written permission.
25#
26# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36# POSSIBILITY OF SUCH DAMAGE.
37#
38#
39# Top level build wrapper, for a system containing no tools.
40#
41# This script should run on any POSIX-compliant shell.  For systems
42# with a strange /bin/sh, "ksh" or "bash" may be an ample alternative.
43#
44# Note, however, that due to the way the interpreter is invoked above,
45# if a POSIX-compliant shell is the first in the PATH, you won't have
46# to take any further action.
47#
48
49progname=${0##*/}
50toppid=$$
51results=/dev/null
52trap "exit 1" 1 2 3 15
53
54bomb()
55{
56	cat >&2 <<ERRORMESSAGE
57
58ERROR: $@
59*** BUILD ABORTED ***
60ERRORMESSAGE
61	kill ${toppid}		# in case we were invoked from a subshell
62	exit 1
63}
64
65
66statusmsg()
67{
68	${runcmd} echo "===> $@" | tee -a "${results}"
69}
70
71initdefaults()
72{
73	cd "$(dirname $0)"
74	[ -d usr.bin/make ] ||
75	    bomb "build.sh must be run from the top source level"
76	[ -f share/mk/bsd.own.mk ] ||
77	    bomb "src/share/mk is missing; please re-fetch the source tree"
78
79	uname_s=$(uname -s 2>/dev/null)
80	uname_m=$(uname -m 2>/dev/null)
81
82	# If $PWD is a valid name of the current directory, POSIX mandates
83	# that pwd return it by default which causes problems in the
84	# presence of symlinks.  Unsetting PWD is simpler than changing
85	# every occurrence of pwd to use -P.
86	#
87	# XXX Except that doesn't work on Solaris.
88	#
89	unset PWD
90	if [ "${uname_s}" = "SunOS" ]; then
91		TOP=$(pwd -P)
92	else
93		TOP=$(pwd)
94	fi
95
96	# Set defaults.
97	#
98	toolprefix=nb
99
100	# Some systems have a small ARG_MAX.  -X prevents make(1) from
101	# exporting variables in the environment redundantly.
102	#
103	case "${uname_s}" in
104	Darwin | FreeBSD | CYGWIN*)
105		MAKEFLAGS=-X
106		;;
107	*)
108		MAKEFLAGS=
109		;;
110	esac
111
112	makeenv=
113	makewrapper=
114	makewrappermachine=
115	runcmd=
116	operations=
117	removedirs=
118	do_expertmode=false
119	do_rebuildmake=false
120	do_removedirs=false
121
122	# do_{operation}=true if given operation is requested.
123	#
124	do_tools=false
125	do_obj=false
126	do_build=false
127	do_distribution=false
128	do_release=false
129	do_kernel=false
130	do_releasekernel=false
131	do_install=false
132	do_sets=false
133	do_sourcesets=false
134	do_params=false
135
136	# Create scratch directory
137	#
138	tmpdir="${TMPDIR-/tmp}/nbbuild$$"
139	mkdir "${tmpdir}" || bomb "Cannot mkdir: ${tmpdir}"
140	trap "cd /; rm -r -f \"${tmpdir}\"" 0
141	results="${tmpdir}/build.sh.results"
142
143	# Set source directories
144	#
145	setmakeenv NETBSDSRCDIR "${TOP}"
146}
147
148getarch()
149{
150	# Translate a MACHINE into a default MACHINE_ARCH.
151	#
152	case "${MACHINE}" in
153
154	acorn26|acorn32|cats|evbarm|hpcarm|netwinder|shark)
155		MACHINE_ARCH=arm
156		;;
157
158	hp700)
159		MACHINE_ARCH=hppa
160		;;
161
162	sun2)
163		MACHINE_ARCH=m68000
164		;;
165
166	amiga|atari|cesfic|hp300|luna68k|mac68k|mvme68k|news68k|next68k|sun3|x68k)
167		MACHINE_ARCH=m68k
168		;;
169
170	evbmips-e[bl]|sbmips-e[bl])
171		MACHINE_ARCH=mips${MACHINE##*-}
172		makewrappermachine=${MACHINE}
173		MACHINE=${MACHINE%-e[bl]}
174		;;
175
176	evbmips|sbmips)		# no default MACHINE_ARCH
177		;;
178
179	mipsco|newsmips|sgimips)
180		MACHINE_ARCH=mipseb
181		;;
182
183	algor|arc|cobalt|hpcmips|playstation2|pmax)
184		MACHINE_ARCH=mipsel
185		;;
186
187	pc532)
188		MACHINE_ARCH=ns32k
189		;;
190
191	amigappc|bebox|evbppc|ibmnws|macppc|mvmeppc|ofppc|pmppc|prep|sandpoint)
192		MACHINE_ARCH=powerpc
193		;;
194
195	evbsh3-e[bl])
196		MACHINE_ARCH=sh3${MACHINE##*-}
197		makewrappermachine=${MACHINE}
198		MACHINE=${MACHINE%-e[bl]}
199		;;
200
201	evbsh3)			# no default MACHINE_ARCH
202		;;
203
204	mmeye)
205		MACHINE_ARCH=sh3eb
206		;;
207
208	dreamcast|hpcsh)
209		MACHINE_ARCH=sh3el
210		;;
211
212	evbsh5)
213		MACHINE_ARCH=sh5el
214		;;
215	amd64)
216		MACHINE_ARCH=x86_64
217		;;
218
219	alpha|i386|sparc|sparc64|vax)
220		MACHINE_ARCH=${MACHINE}
221		;;
222
223	*)
224		bomb "Unknown target MACHINE: ${MACHINE}"
225		;;
226
227	esac
228}
229
230validatearch()
231{
232	# Ensure that the MACHINE_ARCH exists (and is supported by build.sh).
233	#
234	case "${MACHINE_ARCH}" in
235
236	alpha|arm|armeb|hppa|i386|m68000|m68k|mipse[bl]|ns32k|powerpc|sh[35]e[bl]|sparc|sparc64|vax|x86_64)
237		;;
238
239	"")
240		bomb "No MACHINE_ARCH provided"
241		;;
242
243	*)
244		bomb "Unknown target MACHINE_ARCH: ${MACHINE_ARCH}"
245		;;
246
247	esac
248
249	# Determine valid MACHINE_ARCHs for MACHINE
250	#
251	case "${MACHINE}" in
252
253	evbarm)
254		arches="arm armeb"
255		;;
256
257	evbmips|sbmips)
258		arches="mipseb mipsel"
259		;;
260
261	evbsh3)
262		arches="sh3eb sh3el"
263		;;
264
265	evbsh5)
266		arches="sh5eb sh5el"
267		;;
268
269	*)
270		oma="${MACHINE_ARCH}"
271		getarch
272		arches="${MACHINE_ARCH}"
273		MACHINE_ARCH="${oma}"
274		;;
275
276	esac
277
278	# Ensure that MACHINE_ARCH supports MACHINE
279	#
280	archok=false
281	for a in ${arches}; do
282		if [ "${a}" = "${MACHINE_ARCH}" ]; then
283			archok=true
284			break
285		fi
286	done
287	${archok} ||
288	    bomb "MACHINE_ARCH '${MACHINE_ARCH}' does not support MACHINE '${MACHINE}'"
289}
290
291raw_getmakevar()
292{
293	[ -x "${make}" ] || bomb "raw_getmakevar $1: ${make} is not executable"
294	"${make}" -m ${TOP}/share/mk -s -f- _x_ <<EOF
295_x_:
296	echo \${$1}
297.include <bsd.prog.mk>
298.include <bsd.kernobj.mk>
299EOF
300}
301
302getmakevar()
303{
304	# raw_getmakevar() doesn't work properly if $make hasn't yet been
305	# built, which can happen when running with the "-n" option.
306	# getmakevar() deals with this by emitting a literal '$'
307	# followed by the variable name, instead of trying to find the
308	# variable's value.
309	#
310	if [ -x "${make}" ]; then
311		raw_getmakevar "$1"
312	else
313		echo "\$$1"
314	fi
315}
316
317setmakeenv()
318{
319	eval "$1='$2'; export $1"
320	makeenv="${makeenv} $1"
321}
322
323unsetmakeenv()
324{
325	eval "unset $1"
326	makeenv="${makeenv} $1"
327}
328
329resolvepath()
330{
331	case "${OPTARG}" in
332	/*)
333		;;
334	*)
335		OPTARG="${TOP}/${OPTARG}"
336		;;
337	esac
338}
339
340usage()
341{
342	if [ -n "$*" ]; then
343		echo ""
344		echo "${progname}: $*"
345	fi
346	cat <<_usage_
347
348Usage: ${progname} [-EnorUu] [-a arch] [-B buildid] [-D dest] [-j njob]
349		[-M obj] [-m mach] [-N noisy] [-O obj] [-R release] [-T tools]
350		[-V var=[value]] [-w wrapper] [-Z var]   operation [...]
351
352 Build operations (all imply "obj" and "tools"):
353    build               Run "make build"
354    distribution        Run "make distribution" (includes DESTDIR/etc/ files)
355    release             Run "make release" (includes kernels & distrib media)
356
357 Other operations:
358    help                Show this message (and exit)
359    makewrapper         Create ${toolprefix}make-\${MACHINE} wrapper and ${toolprefix}make.
360                        (Always done)
361    obj                 Run "make obj" (default unless -o is used)
362    tools               Build and install tools
363    install=idir        Run "make installworld" to \`idir'
364                        (useful after 'distribution' or 'release')
365    kernel=conf         Build kernel with config file \`conf'
366    releasekernel=conf  Install kernel built by kernel=conf to RELEASEDIR
367    sets                Create binary sets in RELEASEDIR/MACHINE/binary/sets
368    sourcesets          Create source sets in RELEASEDIR/source/sets
369    params              Display various make(1) parameters
370
371 Options:
372    -a arch     Set MACHINE_ARCH to arch (otherwise deduced from MACHINE)
373    -B buildId  Set BUILDID to buildId
374    -D dest     Set DESTDIR to dest.  [Default: destdir.MACHINE]
375    -E          Set "expert" mode; disables various safety checks.
376                Should not be used without expert knowledge of the build system
377    -j njob     Run up to njob jobs in parallel; see make(1)
378    -M obj      Set obj root directory to obj (sets MAKEOBJDIRPREFIX)
379                Unsets MAKEOBJDIR.
380    -m mach     Set MACHINE to mach (not required if NetBSD native)
381    -N noisy	Set the noisyness level of the build:
382		    0	Quiet
383		    1	Operations are described, commands are suppressed
384		    2	Full output
385		[Default: 2]
386    -n          Show commands that would be executed, but do not execute them
387    -O obj      Set obj root directory to obj (sets a MAKEOBJDIR pattern).
388                Unsets MAKEOBJDIRPREFIX.
389    -o          Set MKOBJDIRS=no (do not create objdirs at start of build)
390    -R release  Set RELEASEDIR to release.  [Default: releasedir]
391    -r          Remove contents of TOOLDIR and DESTDIR before building
392    -T tools    Set TOOLDIR to tools.  If unset, and TOOLDIR is not set in
393                the environment, ${toolprefix}make will be (re)built unconditionally
394    -U          Set MKUNPRIVED=yes (build without requiring root privileges;
395    		install from an UNPRIVED build with proper file permissions)
396    -u          Set MKUPDATE=yes (do not run "make clean" first).
397		Without this, everything is rebuilt, including the tools.
398    -V v=[val]  Set variable \`v' to \`val'
399    -w wrapper  Create ${toolprefix}make script as wrapper
400                [Default: \${TOOLDIR}/bin/${toolprefix}make-\${MACHINE}]
401    -Z v        Unset ("zap") variable \`v'
402
403_usage_
404	exit 1
405}
406
407parseoptions()
408{
409	opts='a:B:bD:dEhi:j:k:M:m:N:nO:oR:rT:tUuV:w:Z:'
410	opt_a=no
411
412	if type getopts >/dev/null 2>&1; then
413		# Use POSIX getopts.
414		#
415		getoptcmd='getopts ${opts} opt && opt=-${opt}'
416		optargcmd=':'
417		optremcmd='shift $((${OPTIND} -1))'
418	else
419		type getopt >/dev/null 2>&1 ||
420		    bomb "/bin/sh shell is too old; try ksh or bash"
421
422		# Use old-style getopt(1) (doesn't handle whitespace in args).
423		#
424		args="$(getopt ${opts} $*)"
425		[ $? = 0 ] || usage
426		set -- ${args}
427
428		getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
429		optargcmd='OPTARG="$1"; shift'
430		optremcmd=':'
431	fi
432
433	# Parse command line options.
434	#
435	while eval ${getoptcmd}; do
436		case ${opt} in
437
438		-a)
439			eval ${optargcmd}
440			MACHINE_ARCH=${OPTARG}
441			opt_a=yes
442			;;
443
444		-B)
445			eval ${optargcmd}
446			BUILDID=${OPTARG}
447			;;
448
449		-b)
450			usage "'-b' has been replaced by 'makewrapper'"
451			;;
452
453		-D)
454			eval ${optargcmd}; resolvepath
455			setmakeenv DESTDIR "${OPTARG}"
456			;;
457
458		-d)
459			usage "'-d' has been replaced by 'distribution'"
460			;;
461
462		-E)
463			do_expertmode=true
464			;;
465
466		-i)
467			usage "'-i idir' has been replaced by 'install=idir'"
468			;;
469
470		-j)
471			eval ${optargcmd}
472			parallel="-j ${OPTARG}"
473			;;
474
475		-k)
476			usage "'-k conf' has been replaced by 'kernel=conf'"
477			;;
478
479		-M)
480			eval ${optargcmd}; resolvepath
481			makeobjdir="${OPTARG}"
482			unsetmakeenv MAKEOBJDIR
483			setmakeenv MAKEOBJDIRPREFIX "${OPTARG}"
484			;;
485
486			# -m overrides MACHINE_ARCH unless "-a" is specified
487		-m)
488			eval ${optargcmd}
489			MACHINE="${OPTARG}"
490			[ "${opt_a}" != "yes" ] && getarch
491			;;
492
493		-N)
494			eval ${optargcmd}
495			case "${OPTARG}" in
496			0|1|2)
497				setmakeenv MAKEVERBOSE "${OPTARG}"
498				;;
499			*)
500				usage "'${OPTARG}' is not a valid value for -N"
501				;;
502			esac
503			;;
504
505		-n)
506			runcmd=echo
507			;;
508
509		-O)
510			eval ${optargcmd}; resolvepath
511			makeobjdir="${OPTARG}"
512			unsetmakeenv MAKEOBJDIRPREFIX
513			setmakeenv MAKEOBJDIR "\${.CURDIR:C,^$TOP,$OPTARG,}"
514			;;
515
516		-o)
517			MKOBJDIRS=no
518			;;
519
520		-R)
521			eval ${optargcmd}; resolvepath
522			setmakeenv RELEASEDIR "${OPTARG}"
523			;;
524
525		-r)
526			do_removedirs=true
527			do_rebuildmake=true
528			;;
529
530		-T)
531			eval ${optargcmd}; resolvepath
532			TOOLDIR="${OPTARG}"
533			export TOOLDIR
534			;;
535
536		-t)
537			usage "'-t' has been replaced by 'tools'"
538			;;
539
540		-U)
541			setmakeenv MKUNPRIVED yes
542			;;
543
544		-u)
545			setmakeenv MKUPDATE yes
546			;;
547
548		-V)
549			eval ${optargcmd}
550			case "${OPTARG}" in
551		    # XXX: consider restricting which variables can be changed?
552			[a-zA-Z_][a-zA-Z_0-9]*=*)
553				setmakeenv "${OPTARG%%=*}" "${OPTARG#*=}"
554				;;
555			*)
556				usage "-V argument must be of the form 'var=[value]'"
557				;;
558			esac
559			;;
560
561		-w)
562			eval ${optargcmd}; resolvepath
563			makewrapper="${OPTARG}"
564			;;
565
566		-Z)
567			eval ${optargcmd}
568		    # XXX: consider restricting which variables can be unset?
569			unsetmakeenv "${OPTARG}"
570			;;
571
572		--)
573			break
574			;;
575
576		-'?'|-h)
577			usage
578			;;
579
580		esac
581	done
582
583	# Validate operations.
584	#
585	eval ${optremcmd}
586	while [ $# -gt 0 ]; do
587		op=$1; shift
588		operations="${operations} ${op}"
589
590		case "${op}" in
591
592		help)
593			usage
594			;;
595
596		makewrapper|obj|tools|build|distribution|release|sets|sourcesets|params)
597			;;
598
599		kernel=*|releasekernel=*)
600			arg=${op#*=}
601			op=${op%%=*}
602			[ -n "${arg}" ] ||
603			    bomb "Must supply a kernel name with \`${op}=...'"
604			;;
605
606		install=*)
607			arg=${op#*=}
608			op=${op%%=*}
609			[ -n "${arg}" ] ||
610			    bomb "Must supply a directory with \`install=...'"
611			;;
612
613		*)
614			usage "Unknown operation \`${op}'"
615			;;
616
617		esac
618		eval do_${op}=true
619	done
620	[ -n "${operations}" ] || usage "Missing operation to perform."
621
622	# Set up MACHINE*.  On a NetBSD host, these are allowed to be unset.
623	#
624	if [ -z "${MACHINE}" ]; then
625		[ "${uname_s}" = "NetBSD" ] ||
626		    bomb "MACHINE must be set, or -m must be used, for cross builds."
627		MACHINE=${uname_m}
628	fi
629	[ -n "${MACHINE_ARCH}" ] || getarch
630	validatearch
631
632	# Set up default make(1) environment.
633	#
634	setmakeenv LC_ALL C
635	makeenv="${makeenv} TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
636	[ -z "${BUILDID}" ] || makeenv="${makeenv} BUILDID"
637	MAKEFLAGS="-de -m ${TOP}/share/mk ${MAKEFLAGS} MKOBJDIRS=${MKOBJDIRS-yes}"
638	export MAKEFLAGS MACHINE MACHINE_ARCH
639}
640
641rebuildmake()
642{
643	# Test make source file timestamps against installed ${toolprefix}make
644	# binary, if TOOLDIR is pre-set.
645	#
646	# Note that we do NOT try to grovel "mk.conf" here to find out if
647	# TOOLDIR is set there, because it can contain make variable
648	# expansions and other stuff only parseable *after* we have a working
649	# ${toolprefix}make.  So this logic can only work if the user has
650	# pre-set TOOLDIR in the environment or used the -T option to build.sh.
651	#
652	make="${TOOLDIR-nonexistent}/bin/${toolprefix}make"
653	if [ -x "${make}" ]; then
654		for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
655			if [ "${f}" -nt "${make}" ]; then
656				statusmsg "${make} outdated (older than ${f}), needs building."
657				do_rebuildmake=true
658				break
659			fi
660		done
661	else
662		statusmsg "No ${make}, needs building."
663		do_rebuildmake=true
664	fi
665
666	# Build bootstrap ${toolprefix}make if needed.
667	if ${do_rebuildmake}; then
668		statusmsg "Bootstrapping ${toolprefix}make"
669		${runcmd} cd "${tmpdir}"
670		${runcmd} env CC="${HOST_CC-cc}" CPPFLAGS="${HOST_CPPFLAGS}" \
671			CFLAGS="${HOST_CFLAGS--O}" LDFLAGS="${HOST_LDFLAGS}" \
672			sh "${TOP}/tools/make/configure" ||
673		    bomb "Configure of ${toolprefix}make failed"
674		${runcmd} sh buildmake.sh ||
675		    bomb "Build of ${toolprefix}make failed"
676		make="${tmpdir}/${toolprefix}make"
677		${runcmd} cd "${TOP}"
678		${runcmd} rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
679	fi
680}
681
682validatemakeparams()
683{
684	if [ "${runcmd}" = "echo" ]; then
685		TOOLCHAIN_MISSING=no
686		EXTERNAL_TOOLCHAIN=""
687	else
688		TOOLCHAIN_MISSING=$(raw_getmakevar TOOLCHAIN_MISSING)
689		EXTERNAL_TOOLCHAIN=$(raw_getmakevar EXTERNAL_TOOLCHAIN)
690	fi
691	if [ "${TOOLCHAIN_MISSING}" = "yes" ] && \
692	   [ -z "${EXTERNAL_TOOLCHAIN}" ]; then
693		${runcmd} echo "ERROR: build.sh (in-tree cross-toolchain) is not yet available for"
694		${runcmd} echo "	MACHINE:      ${MACHINE}"
695		${runcmd} echo "	MACHINE_ARCH: ${MACHINE_ARCH}"
696		${runcmd} echo ""
697		${runcmd} echo "All builds for this platform should be done via a traditional make"
698		${runcmd} echo "If you wish to use an external cross-toolchain, set"
699		${runcmd} echo "	EXTERNAL_TOOLCHAIN=<path to toolchain root>"
700		${runcmd} echo "in either the environment or mk.conf and rerun"
701		${runcmd} echo "	${progname} $*"
702		exit 1
703	fi
704
705	# Normalise MKOBJDIRS, MKUNPRIVED, and MKUPDATE
706	# These may be set as build.sh options or in "mk.conf".
707	# Don't export them as they're only used for tests in build.sh.
708	#
709	MKOBJDIRS=$(getmakevar MKOBJDIRS)
710	MKUNPRIVED=$(getmakevar MKUNPRIVED)
711	MKUPDATE=$(getmakevar MKUPDATE)
712
713	if [ "${MKOBJDIRS}" != "no" ]; then
714		# If setting -M or -O to the root of an obj dir, make sure
715		# the base directory is made before continuing as <bsd.own.mk>
716		# will need this to pick up _SRC_TOP_OBJ_
717		#
718		if [ ! -z "${makeobjdir}" ]; then
719			${runcmd} mkdir -p "${makeobjdir}"
720		fi
721
722		# make obj in tools to ensure that the objdir for the top-level
723		# of the source tree and for "tools" is available, in case the
724		# default TOOLDIR setting from <bsd.own.mk> is used, or the
725		# build.sh default DESTDIR and RELEASEDIR is to be used.
726		#
727		${runcmd} cd tools
728		${runcmd} "${make}" -m ${TOP}/share/mk obj NOSUBDIR= ||
729		    bomb "Failed to make obj in tools"
730		${runcmd} cd "${TOP}"
731	fi
732
733	statusmsg "MACHINE:          ${MACHINE}"
734	statusmsg "MACHINE_ARCH:     ${MACHINE_ARCH}"
735
736	# Find TOOLDIR, DESTDIR, and RELEASEDIR.
737	#
738	TOOLDIR=$(getmakevar TOOLDIR)
739	statusmsg "TOOLDIR path:     ${TOOLDIR}"
740	DESTDIR=$(getmakevar DESTDIR)
741	RELEASEDIR=$(getmakevar RELEASEDIR)
742	if ! $do_expertmode; then
743		_SRC_TOP_OBJ_=$(getmakevar _SRC_TOP_OBJ_)
744		: ${DESTDIR:=${_SRC_TOP_OBJ_}/destdir.${MACHINE}}
745		: ${RELEASEDIR:=${_SRC_TOP_OBJ_}/releasedir}
746		makeenv="${makeenv} DESTDIR RELEASEDIR"
747	fi
748	export TOOLDIR DESTDIR RELEASEDIR
749	statusmsg "DESTDIR path:     ${DESTDIR}"
750	statusmsg "RELEASEDIR path:  ${RELEASEDIR}"
751
752	# Check validity of TOOLDIR and DESTDIR.
753	#
754	if [ -z "${TOOLDIR}" ] || [ "${TOOLDIR}" = "/" ]; then
755		bomb "TOOLDIR '${TOOLDIR}' invalid"
756	fi
757	removedirs="${TOOLDIR}"
758
759	if [ -z "${DESTDIR}" ] || [ "${DESTDIR}" = "/" ]; then
760		if ${do_build} || ${do_distribution} || ${do_release}; then
761			if ! ${do_build} || \
762			   [ "${uname_s}" != "NetBSD" ] || \
763			   [ "${uname_m}" != "${MACHINE}" ]; then
764				bomb "DESTDIR must != / for cross builds, or ${progname} 'distribution' or 'release'."
765			fi
766			if ! ${do_expertmode}; then
767				bomb "DESTDIR must != / for non -E (expert) builds"
768			fi
769			statusmsg "WARNING: Building to /, in expert mode."
770			statusmsg "         This may cause your system to break!  Reasons include:"
771			statusmsg "            - your kernel is not up to date"
772			statusmsg "            - the libraries or toolchain have changed"
773			statusmsg "         YOU HAVE BEEN WARNED!"
774		fi
775	else
776		removedirs="${removedirs} ${DESTDIR}"
777	fi
778	if ${do_build} || ${do_distribution} || ${do_release}; then
779		if ! ${do_expertmode} && \
780		    [ $(id -u 2>/dev/null) -ne 0 ] && \
781		    [ -z "${MKUNPRIVED}" ] ; then
782			bomb "-U or -E must be set for build as an unprivileged user."
783		fi
784        fi
785	if ${do_releasekernel} && [ -z "${RELEASEDIR}" ]; then
786		bomb "Must set RELEASEDIR with \`releasekernel=...'"
787	fi
788}
789
790
791createmakewrapper()
792{
793	# Remove the target directories.
794	#
795	if ${do_removedirs}; then
796		for f in ${removedirs}; do
797			statusmsg "Removing ${f}"
798			${runcmd} rm -r -f "${f}"
799		done
800	fi
801
802	# Recreate $TOOLDIR.
803	#
804	${runcmd} mkdir -p "${TOOLDIR}/bin" ||
805	    bomb "mkdir of '${TOOLDIR}/bin' failed"
806
807	# Install ${toolprefix}make if it was built.
808	#
809	if ${do_rebuildmake}; then
810		${runcmd} rm -f "${TOOLDIR}/bin/${toolprefix}make"
811		${runcmd} cp "${make}" "${TOOLDIR}/bin/${toolprefix}make" ||
812		    bomb "Failed to install \$TOOLDIR/bin/${toolprefix}make"
813		make="${TOOLDIR}/bin/${toolprefix}make"
814		statusmsg "Created ${make}"
815	fi
816
817	# Build a ${toolprefix}make wrapper script, usable by hand as
818	# well as by build.sh.
819	#
820	if [ -z "${makewrapper}" ]; then
821		makewrapper="${TOOLDIR}/bin/${toolprefix}make-${makewrappermachine:-${MACHINE}}"
822		[ -z "${BUILDID}" ] || makewrapper="${makewrapper}-${BUILDID}"
823	fi
824
825	${runcmd} rm -f "${makewrapper}"
826	if [ "${runcmd}" = "echo" ]; then
827		echo 'cat <<EOF >'${makewrapper}
828		makewrapout=
829	else
830		makewrapout=">>\${makewrapper}"
831	fi
832
833	eval cat <<EOF ${makewrapout}
834#! /bin/sh
835# Set proper variables to allow easy "make" building of a NetBSD subtree.
836# Generated from:  \$NetBSD: build.sh,v 1.122 2003/10/26 03:12:21 lukem Exp $
837#
838
839EOF
840	for f in ${makeenv}; do
841		if eval "[ -z \"\${$f}\" -a \"\${${f}-X}\" = \"X\" ]"; then
842			eval echo "unset ${f}" ${makewrapout}
843		else
844			eval echo "${f}=\'\$$(echo ${f})\'\;\ export\ ${f}" ${makewrapout}
845		fi
846	done
847	eval echo "USETOOLS=yes\; export USETOOLS" ${makewrapout}
848
849	eval cat <<EOF ${makewrapout}
850
851exec "\${TOOLDIR}/bin/${toolprefix}make" \${1+"\$@"}
852EOF
853	[ "${runcmd}" = "echo" ] && echo EOF
854	${runcmd} chmod +x "${makewrapper}"
855	statusmsg "makewrapper:      ${makewrapper}"
856	statusmsg "Updated ${makewrapper}"
857}
858
859buildtools()
860{
861	if [ "${MKOBJDIRS}" != "no" ]; then
862		${runcmd} "${makewrapper}" ${parallel} obj-tools ||
863		    bomb "Failed to make obj-tools"
864	fi
865	${runcmd} cd tools
866	if [ -z "${MKUPDATE}" ]; then
867		cleandir=cleandir
868	else
869		cleandir=
870	fi
871	${runcmd} "${makewrapper}" ${cleandir} dependall install ||
872	    bomb "Failed to make tools"
873	statusmsg "Tools built to ${TOOLDIR}"
874	${runcmd} cd "${TOP}"
875}
876
877getkernelconf()
878{
879	kernelconf="$1"
880	if [ "${MKOBJDIRS}" != "no" ]; then
881		# The correct value of KERNOBJDIR might
882		# depend on a prior "make obj" in
883		# ${KERNSRCDIR}/${KERNARCHDIR}/compile.
884		#
885		KERNSRCDIR="$(getmakevar KERNSRCDIR)"
886		KERNARCHDIR="$(getmakevar KERNARCHDIR)"
887		${runcmd} cd "${KERNSRCDIR}/${KERNARCHDIR}/compile"
888		${runcmd} "${makewrapper}" obj ||
889		    bomb "Failed to make obj in ${KERNSRCDIR}/${KERNARCHDIR}/compile"
890		${runcmd} cd "${TOP}"
891	fi
892	KERNCONFDIR="$(getmakevar KERNCONFDIR)"
893	KERNOBJDIR="$(getmakevar KERNOBJDIR)"
894	case "${kernelconf}" in
895	*/*)
896		kernelconfpath="${kernelconf}"
897		kernelconfname="${kernelconf##*/}"
898		;;
899	*)
900		kernelconfpath="${KERNCONFDIR}/${kernelconf}"
901		kernelconfname="${kernelconf}"
902		;;
903	esac
904	kernelbuildpath="${KERNOBJDIR}/${kernelconfname}"
905}
906
907buildkernel()
908{
909	if ! ${do_tools} && ! ${buildkernelwarned:-false}; then
910		# Building tools every time we build a kernel is clearly
911		# unnecessary.  We could try to figure out whether rebuilding
912		# the tools is necessary this time, but it doesn't seem worth
913		# the trouble.  Instead, we say it's the user's responsibility
914		# to rebuild the tools if necessary.
915		#
916		statusmsg "Building kernel without building new tools"
917		buildkernelwarned=true
918	fi
919	getkernelconf $1
920	statusmsg "Building kernel:  ${kernelconf}"
921	statusmsg "Build directory:  ${kernelbuildpath}"
922	${runcmd} mkdir -p "${kernelbuildpath}" ||
923	    bomb "Cannot mkdir: ${kernelbuildpath}"
924	if [ -z "${MKUPDATE}" ]; then
925		${runcmd} cd "${kernelbuildpath}"
926		${runcmd} "${makewrapper}" cleandir ||
927		    bomb "Failed to make cleandir in ${kernelbuildpath}"
928		${runcmd} cd "${TOP}"
929	fi
930	${runcmd} "${TOOLDIR}/bin/${toolprefix}config" -b "${kernelbuildpath}" \
931		-s "${TOP}/sys" "${kernelconfpath}" ||
932	    bomb "${toolprefix}config failed for ${kernelconf}"
933	${runcmd} cd "${kernelbuildpath}"
934	${runcmd} "${makewrapper}" depend ||
935	    bomb "Failed to make depend in ${kernelbuildpath}"
936	${runcmd} "${makewrapper}" ${parallel} all ||
937	    bomb "Failed to make all in ${kernelbuildpath}"
938	${runcmd} cd "${TOP}"
939
940	if [ "${runcmd}" != "echo" ]; then
941		statusmsg "Kernels built from ${kernelconf}:"
942		kernlist=$(awk '$1 == "config" { print $2 }' ${kernelconfpath})
943		for kern in ${kernlist:-netbsd}; do
944			[ -f "${kernelbuildpath}/${kern}" ] && \
945			    echo "  ${kernelbuildpath}/${kern}"
946		done | tee -a "${results}"
947	fi
948}
949
950releasekernel()
951{
952	getkernelconf $1
953	kernelreldir="${RELEASEDIR}/${MACHINE}/binary/kernel"
954	${runcmd} mkdir -p "${kernelreldir}"
955	kernlist=$(awk '$1 == "config" { print $2 }' ${kernelconfpath})
956	for kern in ${kernlist:-netbsd}; do
957		builtkern="${kernelbuildpath}/${kern}"
958		[ -f "${builtkern}" ] || continue
959		releasekern="${kernelreldir}/${kern}-${kernelconfname}.gz"
960		statusmsg "Kernel copy:      ${releasekern}"
961		${runcmd} gzip -c -9 < "${builtkern}" > "${releasekern}"
962	done
963}
964
965installworld()
966{
967	dir="$1"
968	${runcmd} "${makewrapper}" INSTALLWORLDDIR="${dir}" installworld ||
969	    bomb "Failed to make installworld to ${dir}"
970	statusmsg "Successful installworld to ${dir}"
971}
972
973
974main()
975{
976	initdefaults
977	parseoptions "$@"
978
979	build_start=$(date)
980	statusmsg "${progname} command: $0 $@"
981	statusmsg "${progname} started: ${build_start}"
982
983	rebuildmake
984	validatemakeparams
985	createmakewrapper
986
987	# Perform the operations.
988	#
989	for op in ${operations}; do
990		case "${op}" in
991
992		makewrapper)
993			# no-op
994			;;
995
996		tools)
997			buildtools
998			;;
999
1000		obj|build|distribution|release|sets|sourcesets|params)
1001			${runcmd} "${makewrapper}" ${parallel} ${op} ||
1002			    bomb "Failed to make ${op}"
1003			statusmsg "Successful make ${op}"
1004			;;
1005
1006		kernel=*)
1007			arg=${op#*=}
1008			buildkernel "${arg}"
1009			;;
1010
1011		releasekernel=*)
1012			arg=${op#*=}
1013			releasekernel "${arg}"
1014			;;
1015
1016		install=*)
1017			arg=${op#*=}
1018			if [ "${arg}" = "/" ] && \
1019			    (	[ "${uname_s}" != "NetBSD" ] || \
1020				[ "${uname_m}" != "${MACHINE}" ] ); then
1021				bomb "'${op}' must != / for cross builds."
1022			fi
1023			installworld "${arg}"
1024			;;
1025
1026		*)
1027			bomb "Unknown operation \`${op}'"
1028			;;
1029
1030		esac
1031	done
1032
1033	statusmsg "${progname} started: ${build_start}"
1034	statusmsg "${progname} ended:   $(date)"
1035	if [ -s "${results}" ]; then
1036		echo "===> Summary of results:"
1037		sed -e 's/^===>//;s/^/	/' "${results}"
1038		echo "===> ."
1039	fi
1040}
1041
1042main "$@"
1043