build.sh revision 1.133
1#! /usr/bin/env sh
2#	$NetBSD: build.sh,v 1.133 2004/10/11 06:18:38 martin Exp $
3#
4# Copyright (c) 2001-2004 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=$$
51results=/dev/null
52trap "exit 1" 1 2 3 15
53
54bomb()
55{
56	cat >&2 <<ERRORMESSAGE
57
58ERROR: $@
59*** BUILD ABORTED ***
60ERRORMESSAGE
61	kill ${toppid}		# in case we were invoked from a subshell
62	exit 1
63}
64
65
66statusmsg()
67{
68	${runcmd} echo "===> $@" | tee -a "${results}"
69}
70
71initdefaults()
72{
73	cd "$(dirname $0)"
74	[ -d usr.bin/make ] ||
75	    bomb "build.sh must be run from the top source level"
76	[ -f share/mk/bsd.own.mk ] ||
77	    bomb "src/share/mk is missing; please re-fetch the source tree"
78
79	uname_s=$(uname -s 2>/dev/null)
80	uname_m=$(uname -m 2>/dev/null)
81
82	# If $PWD is a valid name of the current directory, POSIX mandates
83	# that pwd return it by default which causes problems in the
84	# presence of symlinks.  Unsetting PWD is simpler than changing
85	# every occurrence of pwd to use -P.
86	#
87	# XXX Except that doesn't work on Solaris.
88	#
89	unset PWD
90	TOP=$(/bin/pwd -P 2>/dev/null)
91
92	# Set defaults.
93	#
94	toolprefix=nb
95
96	# Some systems have a small ARG_MAX.  -X prevents make(1) from
97	# exporting variables in the environment redundantly.
98	#
99	case "${uname_s}" in
100	Darwin | FreeBSD | CYGWIN*)
101		MAKEFLAGS=-X
102		;;
103	*)
104		MAKEFLAGS=
105		;;
106	esac
107
108	makeenv=
109	makewrapper=
110	makewrappermachine=
111	runcmd=
112	operations=
113	removedirs=
114	do_expertmode=false
115	do_rebuildmake=false
116	do_removedirs=false
117
118	# do_{operation}=true if given operation is requested.
119	#
120	do_tools=false
121	do_obj=false
122	do_build=false
123	do_distribution=false
124	do_release=false
125	do_kernel=false
126	do_releasekernel=false
127	do_install=false
128	do_sets=false
129	do_sourcesets=false
130	do_params=false
131
132	# Create scratch directory
133	#
134	tmpdir="${TMPDIR-/tmp}/nbbuild$$"
135	mkdir "${tmpdir}" || bomb "Cannot mkdir: ${tmpdir}"
136	trap "cd /; rm -r -f \"${tmpdir}\"" 0
137	results="${tmpdir}/build.sh.results"
138
139	# Set source directories
140	#
141	setmakeenv NETBSDSRCDIR "${TOP}"
142}
143
144getarch()
145{
146	# Translate a MACHINE into a default MACHINE_ARCH.
147	#
148	case "${MACHINE}" in
149
150	acorn26|acorn32|cats|evbarm|hpcarm|netwinder|shark)
151		MACHINE_ARCH=arm
152		;;
153
154	hp700)
155		MACHINE_ARCH=hppa
156		;;
157
158	sun2)
159		MACHINE_ARCH=m68000
160		;;
161
162	amiga|atari|cesfic|hp300|luna68k|mac68k|mvme68k|news68k|next68k|sun3|x68k)
163		MACHINE_ARCH=m68k
164		;;
165
166	evbmips-e[bl]|sbmips-e[bl])
167		MACHINE_ARCH=mips${MACHINE##*-}
168		makewrappermachine=${MACHINE}
169		MACHINE=${MACHINE%-e[bl]}
170		;;
171
172	evbmips|sbmips)		# no default MACHINE_ARCH
173		;;
174
175	mipsco|newsmips|sgimips)
176		MACHINE_ARCH=mipseb
177		;;
178
179	algor|arc|cobalt|hpcmips|playstation2|pmax)
180		MACHINE_ARCH=mipsel
181		;;
182
183	pc532)
184		MACHINE_ARCH=ns32k
185		;;
186
187	amigappc|bebox|evbppc|ibmnws|macppc|mvmeppc|ofppc|pmppc|prep|sandpoint)
188		MACHINE_ARCH=powerpc
189		;;
190
191	evbsh3-e[bl])
192		MACHINE_ARCH=sh3${MACHINE##*-}
193		makewrappermachine=${MACHINE}
194		MACHINE=${MACHINE%-e[bl]}
195		;;
196
197	evbsh3)			# no default MACHINE_ARCH
198		;;
199
200	mmeye)
201		MACHINE_ARCH=sh3eb
202		;;
203
204	dreamcast|hpcsh)
205		MACHINE_ARCH=sh3el
206		;;
207
208	evbsh5)
209		MACHINE_ARCH=sh5el
210		;;
211	amd64)
212		MACHINE_ARCH=x86_64
213		;;
214
215	xen-*)
216		setmakeenv XEN_BUILD "${MACHINE##*-}"
217		setmakeenv KERNARCHDIR "arch/xen"
218		setmakeenv RELEASEMACHINE "xen"
219		setmakeenv RELEASEMACHINEDIR "${MACHINE}"
220		makewrappermachine=${MACHINE}
221		MACHINE=${MACHINE##*-}
222		getarch
223		;;
224
225	xen)			# no default MACHINE_ARCH
226		;;
227
228	alpha|i386|sparc|sparc64|vax)
229		MACHINE_ARCH=${MACHINE}
230		;;
231
232	*)
233		bomb "Unknown target MACHINE: ${MACHINE}"
234		;;
235
236	esac
237}
238
239validatearch()
240{
241	# Ensure that the MACHINE_ARCH exists (and is supported by build.sh).
242	#
243	case "${MACHINE_ARCH}" in
244
245	alpha|arm|armeb|hppa|i386|m68000|m68k|mipse[bl]|ns32k|powerpc|sh[35]e[bl]|sparc|sparc64|vax|x86_64)
246		;;
247
248	"")
249		bomb "No MACHINE_ARCH provided"
250		;;
251
252	*)
253		bomb "Unknown target MACHINE_ARCH: ${MACHINE_ARCH}"
254		;;
255
256	esac
257
258	# Determine valid MACHINE_ARCHs for MACHINE
259	#
260	case "${MACHINE}" in
261
262	evbarm)
263		arches="arm armeb"
264		;;
265
266	evbmips|sbmips)
267		arches="mipseb mipsel"
268		;;
269
270	evbsh3)
271		arches="sh3eb sh3el"
272		;;
273
274	evbsh5)
275		arches="sh5eb sh5el"
276		;;
277
278	*)
279		oma="${MACHINE_ARCH}"
280		getarch
281		arches="${MACHINE_ARCH}"
282		MACHINE_ARCH="${oma}"
283		;;
284
285	esac
286
287	# Ensure that MACHINE_ARCH supports MACHINE
288	#
289	archok=false
290	for a in ${arches}; do
291		if [ "${a}" = "${MACHINE_ARCH}" ]; then
292			archok=true
293			break
294		fi
295	done
296	${archok} ||
297	    bomb "MACHINE_ARCH '${MACHINE_ARCH}' does not support MACHINE '${MACHINE}'"
298}
299
300raw_getmakevar()
301{
302	[ -x "${make}" ] || bomb "raw_getmakevar $1: ${make} is not executable"
303	"${make}" -m ${TOP}/share/mk -s -f- _x_ <<EOF
304_x_:
305	echo \${$1}
306.include <bsd.prog.mk>
307.include <bsd.kernobj.mk>
308EOF
309}
310
311getmakevar()
312{
313	# raw_getmakevar() doesn't work properly if $make hasn't yet been
314	# built, which can happen when running with the "-n" option.
315	# getmakevar() deals with this by emitting a literal '$'
316	# followed by the variable name, instead of trying to find the
317	# variable's value.
318	#
319	if [ -x "${make}" ]; then
320		raw_getmakevar "$1"
321	else
322		echo "\$$1"
323	fi
324}
325
326setmakeenv()
327{
328	eval "$1='$2'; export $1"
329	makeenv="${makeenv} $1"
330}
331
332unsetmakeenv()
333{
334	eval "unset $1"
335	makeenv="${makeenv} $1"
336}
337
338# Convert possibly-relative path to absolute path by prepending
339# ${TOP} if necessary.  Also delete trailing "/", if any.
340resolvepath()
341{
342	case "${OPTARG}" in
343	/)
344		;;
345	/*)
346		OPTARG="${OPTARG%/}"
347		;;
348	*)
349		OPTARG="${TOP}/${OPTARG%/}"
350		;;
351	esac
352}
353
354usage()
355{
356	if [ -n "$*" ]; then
357		echo ""
358		echo "${progname}: $*"
359	fi
360	cat <<_usage_
361
362Usage: ${progname} [-EnorUux] [-a arch] [-B buildid] [-D dest] [-j njob]
363		[-M obj] [-m mach] [-N noisy] [-O obj] [-R release] [-T tools]
364		[-V var=[value]] [-w wrapper] [-X x11src] [-Z var]
365		operation [...]
366
367 Build operations (all imply "obj" and "tools"):
368    build               Run "make build".
369    distribution        Run "make distribution" (includes DESTDIR/etc/ files).
370    release             Run "make release" (includes kernels & distrib media).
371
372 Other operations:
373    help                Show this message and exit.
374    makewrapper         Create ${toolprefix}make-\${MACHINE} wrapper and ${toolprefix}make.
375                        Always performed.
376    obj                 Run "make obj".  [Default unless -o is used]
377    tools               Build and install tools.
378    install=idir        Run "make installworld" to \`idir' to install all sets
379			except \`etc'.  Useful after "distribution" or "release"
380    kernel=conf         Build kernel with config file \`conf'
381    releasekernel=conf  Install kernel built by kernel=conf to RELEASEDIR.
382    sets                Create binary sets in RELEASEDIR/MACHINE/binary/sets.
383			DESTDIR should be populated beforehand.
384    sourcesets          Create source sets in RELEASEDIR/source/sets.
385    params              Display various make(1) parameters.
386
387 Options:
388    -a arch     Set MACHINE_ARCH to arch.  [Default: deduced from MACHINE]
389    -B buildId  Set BUILDID to buildId.
390    -D dest     Set DESTDIR to dest.  [Default: destdir.MACHINE]
391    -E          Set "expert" mode; disables various safety checks.
392                Should not be used without expert knowledge of the build system.
393    -h          Print this help message.
394    -j njob     Run up to njob jobs in parallel; see make(1) -j.
395    -M obj      Set obj root directory to obj; sets MAKEOBJDIRPREFIX.
396                Unsets MAKEOBJDIR.
397    -m mach     Set MACHINE to mach; not required if NetBSD native.
398    -N noisy	Set the noisyness (MAKEVERBOSE) level of the build:
399		    0	Quiet
400		    1	Operations are described, commands are suppressed
401		    2	Full output
402		[Default: 2]
403    -n          Show commands that would be executed, but do not execute them.
404    -O obj      Set obj root directory to obj; sets a MAKEOBJDIR pattern.
405                Unsets MAKEOBJDIRPREFIX.
406    -o          Set MKOBJDIRS=no; do not create objdirs at start of build.
407    -R release  Set RELEASEDIR to release.  [Default: releasedir]
408    -r          Remove contents of TOOLDIR and DESTDIR before building.
409    -T tools    Set TOOLDIR to tools.  If unset, and TOOLDIR is not set in
410                the environment, ${toolprefix}make will be (re)built unconditionally.
411    -U          Set MKUNPRIVED=yes; build without requiring root privileges,
412    		install from an UNPRIVED build with proper file permissions.
413    -u          Set MKUPDATE=yes; do not run "make clean" first.
414		Without this, everything is rebuilt, including the tools.
415    -V v=[val]  Set variable \`v' to \`val'.
416    -w wrapper  Create ${toolprefix}make script as wrapper.
417                [Default: \${TOOLDIR}/bin/${toolprefix}make-\${MACHINE}]
418    -X x11src   Set X11SRCDIR to x11src.  [Default: /usr/xsrc]
419    -x          Set MKX11=yes; build X11R6 from X11SRCDIR
420    -Z v        Unset ("zap") variable \`v'.
421
422_usage_
423	exit 1
424}
425
426parseoptions()
427{
428	opts='a:B:bD:dEhi:j:k:M:m:N:nO:oR:rT:tUuV:w:xX:Z:'
429	opt_a=no
430
431	if type getopts >/dev/null 2>&1; then
432		# Use POSIX getopts.
433		#
434		getoptcmd='getopts ${opts} opt && opt=-${opt}'
435		optargcmd=':'
436		optremcmd='shift $((${OPTIND} -1))'
437	else
438		type getopt >/dev/null 2>&1 ||
439		    bomb "/bin/sh shell is too old; try ksh or bash"
440
441		# Use old-style getopt(1) (doesn't handle whitespace in args).
442		#
443		args="$(getopt ${opts} $*)"
444		[ $? = 0 ] || usage
445		set -- ${args}
446
447		getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
448		optargcmd='OPTARG="$1"; shift'
449		optremcmd=':'
450	fi
451
452	# Parse command line options.
453	#
454	while eval ${getoptcmd}; do
455		case ${opt} in
456
457		-a)
458			eval ${optargcmd}
459			MACHINE_ARCH=${OPTARG}
460			opt_a=yes
461			;;
462
463		-B)
464			eval ${optargcmd}
465			BUILDID=${OPTARG}
466			;;
467
468		-b)
469			usage "'-b' has been replaced by 'makewrapper'"
470			;;
471
472		-D)
473			eval ${optargcmd}; resolvepath
474			setmakeenv DESTDIR "${OPTARG}"
475			;;
476
477		-d)
478			usage "'-d' has been replaced by 'distribution'"
479			;;
480
481		-E)
482			do_expertmode=true
483			;;
484
485		-i)
486			usage "'-i idir' has been replaced by 'install=idir'"
487			;;
488
489		-j)
490			eval ${optargcmd}
491			parallel="-j ${OPTARG}"
492			;;
493
494		-k)
495			usage "'-k conf' has been replaced by 'kernel=conf'"
496			;;
497
498		-M)
499			eval ${optargcmd}; resolvepath
500			makeobjdir="${OPTARG}"
501			unsetmakeenv MAKEOBJDIR
502			setmakeenv MAKEOBJDIRPREFIX "${OPTARG}"
503			;;
504
505			# -m overrides MACHINE_ARCH unless "-a" is specified
506		-m)
507			eval ${optargcmd}
508			MACHINE="${OPTARG}"
509			[ "${opt_a}" != "yes" ] && getarch
510			;;
511
512		-N)
513			eval ${optargcmd}
514			case "${OPTARG}" in
515			0|1|2)
516				setmakeenv MAKEVERBOSE "${OPTARG}"
517				;;
518			*)
519				usage "'${OPTARG}' is not a valid value for -N"
520				;;
521			esac
522			;;
523
524		-n)
525			runcmd=echo
526			;;
527
528		-O)
529			eval ${optargcmd}; resolvepath
530			makeobjdir="${OPTARG}"
531			unsetmakeenv MAKEOBJDIRPREFIX
532			setmakeenv MAKEOBJDIR "\${.CURDIR:C,^$TOP,$OPTARG,}"
533			;;
534
535		-o)
536			MKOBJDIRS=no
537			;;
538
539		-R)
540			eval ${optargcmd}; resolvepath
541			setmakeenv RELEASEDIR "${OPTARG}"
542			;;
543
544		-r)
545			do_removedirs=true
546			do_rebuildmake=true
547			;;
548
549		-T)
550			eval ${optargcmd}; resolvepath
551			TOOLDIR="${OPTARG}"
552			export TOOLDIR
553			;;
554
555		-t)
556			usage "'-t' has been replaced by 'tools'"
557			;;
558
559		-U)
560			setmakeenv MKUNPRIVED yes
561			;;
562
563		-u)
564			setmakeenv MKUPDATE yes
565			;;
566
567		-V)
568			eval ${optargcmd}
569			case "${OPTARG}" in
570		    # XXX: consider restricting which variables can be changed?
571			[a-zA-Z_][a-zA-Z_0-9]*=*)
572				setmakeenv "${OPTARG%%=*}" "${OPTARG#*=}"
573				;;
574			*)
575				usage "-V argument must be of the form 'var=[value]'"
576				;;
577			esac
578			;;
579
580		-w)
581			eval ${optargcmd}; resolvepath
582			makewrapper="${OPTARG}"
583			;;
584
585		-X)
586			eval ${optargcmd}; resolvepath
587			setmakeenv X11SRCDIR "${OPTARG}"
588			;;
589
590		-x)
591			setmakeenv MKX11 yes
592			;;
593
594		-Z)
595			eval ${optargcmd}
596		    # XXX: consider restricting which variables can be unset?
597			unsetmakeenv "${OPTARG}"
598			;;
599
600		--)
601			break
602			;;
603
604		-'?'|-h)
605			usage
606			;;
607
608		esac
609	done
610
611	# Validate operations.
612	#
613	eval ${optremcmd}
614	while [ $# -gt 0 ]; do
615		op=$1; shift
616		operations="${operations} ${op}"
617
618		case "${op}" in
619
620		help)
621			usage
622			;;
623
624		makewrapper|obj|tools|build|distribution|release|sets|sourcesets|params)
625			;;
626
627		kernel=*|releasekernel=*)
628			arg=${op#*=}
629			op=${op%%=*}
630			[ -n "${arg}" ] ||
631			    bomb "Must supply a kernel name with \`${op}=...'"
632			;;
633
634		install=*)
635			arg=${op#*=}
636			op=${op%%=*}
637			[ -n "${arg}" ] ||
638			    bomb "Must supply a directory with \`install=...'"
639			;;
640
641		*)
642			usage "Unknown operation \`${op}'"
643			;;
644
645		esac
646		eval do_${op}=true
647	done
648	[ -n "${operations}" ] || usage "Missing operation to perform."
649
650	# Set up MACHINE*.  On a NetBSD host, these are allowed to be unset.
651	#
652	if [ -z "${MACHINE}" ]; then
653		[ "${uname_s}" = "NetBSD" ] ||
654		    bomb "MACHINE must be set, or -m must be used, for cross builds."
655		MACHINE=${uname_m}
656	fi
657	[ -n "${MACHINE_ARCH}" ] || getarch
658	validatearch
659
660	# Set up default make(1) environment.
661	#
662	setmakeenv LC_ALL C
663	makeenv="${makeenv} TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
664	[ -z "${BUILDID}" ] || makeenv="${makeenv} BUILDID"
665	MAKEFLAGS="-de -m ${TOP}/share/mk ${MAKEFLAGS} MKOBJDIRS=${MKOBJDIRS-yes}"
666	export MAKEFLAGS MACHINE MACHINE_ARCH
667}
668
669rebuildmake()
670{
671	# Test make source file timestamps against installed ${toolprefix}make
672	# binary, if TOOLDIR is pre-set.
673	#
674	# Note that we do NOT try to grovel "mk.conf" here to find out if
675	# TOOLDIR is set there, because it can contain make variable
676	# expansions and other stuff only parseable *after* we have a working
677	# ${toolprefix}make.  So this logic can only work if the user has
678	# pre-set TOOLDIR in the environment or used the -T option to build.sh.
679	#
680	make="${TOOLDIR-nonexistent}/bin/${toolprefix}make"
681	if [ -x "${make}" ]; then
682		for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
683			if [ "${f}" -nt "${make}" ]; then
684				statusmsg "${make} outdated (older than ${f}), needs building."
685				do_rebuildmake=true
686				break
687			fi
688		done
689	else
690		statusmsg "No ${make}, needs building."
691		do_rebuildmake=true
692	fi
693
694	# Build bootstrap ${toolprefix}make if needed.
695	if ${do_rebuildmake}; then
696		statusmsg "Bootstrapping ${toolprefix}make"
697		${runcmd} cd "${tmpdir}"
698		${runcmd} env CC="${HOST_CC-cc}" CPPFLAGS="${HOST_CPPFLAGS}" \
699			CFLAGS="${HOST_CFLAGS--O}" LDFLAGS="${HOST_LDFLAGS}" \
700			sh "${TOP}/tools/make/configure" ||
701		    bomb "Configure of ${toolprefix}make failed"
702		${runcmd} sh buildmake.sh ||
703		    bomb "Build of ${toolprefix}make failed"
704		make="${tmpdir}/${toolprefix}make"
705		${runcmd} cd "${TOP}"
706		${runcmd} rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
707	fi
708}
709
710validatemakeparams()
711{
712	if [ "${runcmd}" = "echo" ]; then
713		TOOLCHAIN_MISSING=no
714		EXTERNAL_TOOLCHAIN=""
715	else
716		TOOLCHAIN_MISSING=$(raw_getmakevar TOOLCHAIN_MISSING)
717		EXTERNAL_TOOLCHAIN=$(raw_getmakevar EXTERNAL_TOOLCHAIN)
718	fi
719	if [ "${TOOLCHAIN_MISSING}" = "yes" ] && \
720	   [ -z "${EXTERNAL_TOOLCHAIN}" ]; then
721		${runcmd} echo "ERROR: build.sh (in-tree cross-toolchain) is not yet available for"
722		${runcmd} echo "	MACHINE:      ${MACHINE}"
723		${runcmd} echo "	MACHINE_ARCH: ${MACHINE_ARCH}"
724		${runcmd} echo ""
725		${runcmd} echo "All builds for this platform should be done via a traditional make"
726		${runcmd} echo "If you wish to use an external cross-toolchain, set"
727		${runcmd} echo "	EXTERNAL_TOOLCHAIN=<path to toolchain root>"
728		${runcmd} echo "in either the environment or mk.conf and rerun"
729		${runcmd} echo "	${progname} $*"
730		exit 1
731	fi
732
733	# Normalise MKOBJDIRS, MKUNPRIVED, and MKUPDATE
734	# These may be set as build.sh options or in "mk.conf".
735	# Don't export them as they're only used for tests in build.sh.
736	#
737	MKOBJDIRS=$(getmakevar MKOBJDIRS)
738	MKUNPRIVED=$(getmakevar MKUNPRIVED)
739	MKUPDATE=$(getmakevar MKUPDATE)
740
741	if [ "${MKOBJDIRS}" != "no" ]; then
742		# If setting -M or -O to the root of an obj dir, make sure
743		# the base directory is made before continuing as <bsd.own.mk>
744		# will need this to pick up _SRC_TOP_OBJ_
745		#
746		if [ ! -z "${makeobjdir}" ]; then
747			${runcmd} mkdir -p "${makeobjdir}"
748		fi
749
750		# make obj in tools to ensure that the objdir for the top-level
751		# of the source tree and for "tools" is available, in case the
752		# default TOOLDIR setting from <bsd.own.mk> is used, or the
753		# build.sh default DESTDIR and RELEASEDIR is to be used.
754		#
755		${runcmd} cd tools
756		${runcmd} "${make}" -m ${TOP}/share/mk obj NOSUBDIR= ||
757		    bomb "Failed to make obj in tools"
758		${runcmd} cd "${TOP}"
759	fi
760
761	statusmsg "MACHINE:          ${MACHINE}"
762	statusmsg "MACHINE_ARCH:     ${MACHINE_ARCH}"
763
764	# Find TOOLDIR, DESTDIR, and RELEASEDIR.
765	#
766	TOOLDIR=$(getmakevar TOOLDIR)
767	statusmsg "TOOLDIR path:     ${TOOLDIR}"
768	DESTDIR=$(getmakevar DESTDIR)
769	RELEASEDIR=$(getmakevar RELEASEDIR)
770	if ! $do_expertmode; then
771		_SRC_TOP_OBJ_=$(getmakevar _SRC_TOP_OBJ_)
772		: ${DESTDIR:=${_SRC_TOP_OBJ_}/destdir.${MACHINE}}
773		: ${RELEASEDIR:=${_SRC_TOP_OBJ_}/releasedir}
774		makeenv="${makeenv} DESTDIR RELEASEDIR"
775	fi
776	export TOOLDIR DESTDIR RELEASEDIR
777	statusmsg "DESTDIR path:     ${DESTDIR}"
778	statusmsg "RELEASEDIR path:  ${RELEASEDIR}"
779
780	# Check validity of TOOLDIR and DESTDIR.
781	#
782	if [ -z "${TOOLDIR}" ] || [ "${TOOLDIR}" = "/" ]; then
783		bomb "TOOLDIR '${TOOLDIR}' invalid"
784	fi
785	removedirs="${TOOLDIR}"
786
787	if [ -z "${DESTDIR}" ] || [ "${DESTDIR}" = "/" ]; then
788		if ${do_build} || ${do_distribution} || ${do_release}; then
789			if ! ${do_build} || \
790			   [ "${uname_s}" != "NetBSD" ] || \
791			   [ "${uname_m}" != "${MACHINE}" ]; then
792				bomb "DESTDIR must != / for cross builds, or ${progname} 'distribution' or 'release'."
793			fi
794			if ! ${do_expertmode}; then
795				bomb "DESTDIR must != / for non -E (expert) builds"
796			fi
797			statusmsg "WARNING: Building to /, in expert mode."
798			statusmsg "         This may cause your system to break!  Reasons include:"
799			statusmsg "            - your kernel is not up to date"
800			statusmsg "            - the libraries or toolchain have changed"
801			statusmsg "         YOU HAVE BEEN WARNED!"
802		fi
803	else
804		removedirs="${removedirs} ${DESTDIR}"
805	fi
806	if ${do_build} || ${do_distribution} || ${do_release}; then
807		if ! ${do_expertmode} && \
808		    [ $(id -u 2>/dev/null) -ne 0 ] && \
809		    [ "${MKUNPRIVED}" = "no" ] ; then
810			bomb "-U or -E must be set for build as an unprivileged user."
811		fi
812        fi
813	if ${do_releasekernel} && [ -z "${RELEASEDIR}" ]; then
814		bomb "Must set RELEASEDIR with \`releasekernel=...'"
815	fi
816}
817
818
819createmakewrapper()
820{
821	# Remove the target directories.
822	#
823	if ${do_removedirs}; then
824		for f in ${removedirs}; do
825			statusmsg "Removing ${f}"
826			${runcmd} rm -r -f "${f}"
827		done
828	fi
829
830	# Recreate $TOOLDIR.
831	#
832	${runcmd} mkdir -p "${TOOLDIR}/bin" ||
833	    bomb "mkdir of '${TOOLDIR}/bin' failed"
834
835	# Install ${toolprefix}make if it was built.
836	#
837	if ${do_rebuildmake}; then
838		${runcmd} rm -f "${TOOLDIR}/bin/${toolprefix}make"
839		${runcmd} cp "${make}" "${TOOLDIR}/bin/${toolprefix}make" ||
840		    bomb "Failed to install \$TOOLDIR/bin/${toolprefix}make"
841		make="${TOOLDIR}/bin/${toolprefix}make"
842		statusmsg "Created ${make}"
843	fi
844
845	# Build a ${toolprefix}make wrapper script, usable by hand as
846	# well as by build.sh.
847	#
848	if [ -z "${makewrapper}" ]; then
849		makewrapper="${TOOLDIR}/bin/${toolprefix}make-${makewrappermachine:-${MACHINE}}"
850		[ -z "${BUILDID}" ] || makewrapper="${makewrapper}-${BUILDID}"
851	fi
852
853	${runcmd} rm -f "${makewrapper}"
854	if [ "${runcmd}" = "echo" ]; then
855		echo 'cat <<EOF >'${makewrapper}
856		makewrapout=
857	else
858		makewrapout=">>\${makewrapper}"
859	fi
860
861	eval cat <<EOF ${makewrapout}
862#! /bin/sh
863# Set proper variables to allow easy "make" building of a NetBSD subtree.
864# Generated from:  \$NetBSD: build.sh,v 1.133 2004/10/11 06:18:38 martin Exp $
865# with these arguments: ${_args}
866#
867EOF
868	for f in ${makeenv}; do
869		if eval "[ -z \"\${$f}\" -a \"\${${f}-X}\" = \"X\" ]"; then
870			eval echo "unset ${f}" ${makewrapout}
871		else
872			eval echo "${f}=\'\$$(echo ${f})\'\;\ export\ ${f}" ${makewrapout}
873		fi
874	done
875	eval echo "USETOOLS=yes\; export USETOOLS" ${makewrapout}
876
877	eval cat <<EOF ${makewrapout}
878
879exec "\${TOOLDIR}/bin/${toolprefix}make" \${1+"\$@"}
880EOF
881	[ "${runcmd}" = "echo" ] && echo EOF
882	${runcmd} chmod +x "${makewrapper}"
883	statusmsg "makewrapper:      ${makewrapper}"
884	statusmsg "Updated ${makewrapper}"
885}
886
887buildtools()
888{
889	if [ "${MKOBJDIRS}" != "no" ]; then
890		${runcmd} "${makewrapper}" ${parallel} obj-tools ||
891		    bomb "Failed to make obj-tools"
892	fi
893	${runcmd} cd tools
894	if [ "${MKUPDATE}" = "no" ]; then
895		cleandir=cleandir
896	else
897		cleandir=
898	fi
899	${runcmd} "${makewrapper}" ${cleandir} dependall install ||
900	    bomb "Failed to make tools"
901	statusmsg "Tools built to ${TOOLDIR}"
902	${runcmd} cd "${TOP}"
903}
904
905getkernelconf()
906{
907	kernelconf="$1"
908	if [ "${MKOBJDIRS}" != "no" ]; then
909		# The correct value of KERNOBJDIR might
910		# depend on a prior "make obj" in
911		# ${KERNSRCDIR}/${KERNARCHDIR}/compile.
912		#
913		KERNSRCDIR="$(getmakevar KERNSRCDIR)"
914		KERNARCHDIR="$(getmakevar KERNARCHDIR)"
915		${runcmd} cd "${KERNSRCDIR}/${KERNARCHDIR}/compile"
916		${runcmd} "${makewrapper}" obj ||
917		    bomb "Failed to make obj in ${KERNSRCDIR}/${KERNARCHDIR}/compile"
918		${runcmd} cd "${TOP}"
919	fi
920	KERNCONFDIR="$(getmakevar KERNCONFDIR)"
921	KERNOBJDIR="$(getmakevar KERNOBJDIR)"
922	case "${kernelconf}" in
923	*/*)
924		kernelconfpath="${kernelconf}"
925		kernelconfname="${kernelconf##*/}"
926		;;
927	*)
928		kernelconfpath="${KERNCONFDIR}/${kernelconf}"
929		kernelconfname="${kernelconf}"
930		;;
931	esac
932	kernelbuildpath="${KERNOBJDIR}/${kernelconfname}"
933}
934
935buildkernel()
936{
937	if ! ${do_tools} && ! ${buildkernelwarned:-false}; then
938		# Building tools every time we build a kernel is clearly
939		# unnecessary.  We could try to figure out whether rebuilding
940		# the tools is necessary this time, but it doesn't seem worth
941		# the trouble.  Instead, we say it's the user's responsibility
942		# to rebuild the tools if necessary.
943		#
944		statusmsg "Building kernel without building new tools"
945		buildkernelwarned=true
946	fi
947	getkernelconf $1
948	statusmsg "Building kernel:  ${kernelconf}"
949	statusmsg "Build directory:  ${kernelbuildpath}"
950	${runcmd} mkdir -p "${kernelbuildpath}" ||
951	    bomb "Cannot mkdir: ${kernelbuildpath}"
952	if [ "${MKUPDATE}" = "no" ]; then
953		${runcmd} cd "${kernelbuildpath}"
954		${runcmd} "${makewrapper}" cleandir ||
955		    bomb "Failed to make cleandir in ${kernelbuildpath}"
956		${runcmd} cd "${TOP}"
957	fi
958	${runcmd} "${TOOLDIR}/bin/${toolprefix}config" -b "${kernelbuildpath}" \
959		-s "${TOP}/sys" "${kernelconfpath}" ||
960	    bomb "${toolprefix}config failed for ${kernelconf}"
961	${runcmd} cd "${kernelbuildpath}"
962	${runcmd} "${makewrapper}" depend ||
963	    bomb "Failed to make depend in ${kernelbuildpath}"
964	${runcmd} "${makewrapper}" ${parallel} all ||
965	    bomb "Failed to make all in ${kernelbuildpath}"
966	${runcmd} cd "${TOP}"
967
968	if [ "${runcmd}" != "echo" ]; then
969		statusmsg "Kernels built from ${kernelconf}:"
970		kernlist=$(awk '$1 == "config" { print $2 }' ${kernelconfpath})
971		for kern in ${kernlist:-netbsd}; do
972			[ -f "${kernelbuildpath}/${kern}" ] && \
973			    echo "  ${kernelbuildpath}/${kern}"
974		done | tee -a "${results}"
975	fi
976}
977
978releasekernel()
979{
980	getkernelconf $1
981	kernelreldir="${RELEASEDIR}/${MACHINE}/binary/kernel"
982	${runcmd} mkdir -p "${kernelreldir}"
983	kernlist=$(awk '$1 == "config" { print $2 }' ${kernelconfpath})
984	for kern in ${kernlist:-netbsd}; do
985		builtkern="${kernelbuildpath}/${kern}"
986		[ -f "${builtkern}" ] || continue
987		releasekern="${kernelreldir}/${kern}-${kernelconfname}.gz"
988		statusmsg "Kernel copy:      ${releasekern}"
989		${runcmd} gzip -c -9 < "${builtkern}" > "${releasekern}"
990	done
991}
992
993installworld()
994{
995	dir="$1"
996	${runcmd} "${makewrapper}" INSTALLWORLDDIR="${dir}" installworld ||
997	    bomb "Failed to make installworld to ${dir}"
998	statusmsg "Successful installworld to ${dir}"
999}
1000
1001
1002main()
1003{
1004	initdefaults
1005	_args=$@
1006	parseoptions "$@"
1007
1008	build_start=$(date)
1009	statusmsg "${progname} command: $0 $@"
1010	statusmsg "${progname} started: ${build_start}"
1011
1012	rebuildmake
1013	validatemakeparams
1014	createmakewrapper
1015
1016	# Perform the operations.
1017	#
1018	for op in ${operations}; do
1019		case "${op}" in
1020
1021		makewrapper)
1022			# no-op
1023			;;
1024
1025		tools)
1026			buildtools
1027			;;
1028
1029		sets)
1030			statusmsg "Building sets from pre-populated ${DESTDIR}"
1031			${runcmd} "${makewrapper}" ${parallel} ${op} ||
1032			    bomb "Failed to make ${op}"
1033			statusmsg "Successful make ${op}"
1034			;;
1035			
1036		obj|build|distribution|release|sourcesets|params)
1037			${runcmd} "${makewrapper}" ${parallel} ${op} ||
1038			    bomb "Failed to make ${op}"
1039			statusmsg "Successful make ${op}"
1040			;;
1041
1042		kernel=*)
1043			arg=${op#*=}
1044			buildkernel "${arg}"
1045			;;
1046
1047		releasekernel=*)
1048			arg=${op#*=}
1049			releasekernel "${arg}"
1050			;;
1051
1052		install=*)
1053			arg=${op#*=}
1054			if [ "${arg}" = "/" ] && \
1055			    (	[ "${uname_s}" != "NetBSD" ] || \
1056				[ "${uname_m}" != "${MACHINE}" ] ); then
1057				bomb "'${op}' must != / for cross builds."
1058			fi
1059			installworld "${arg}"
1060			;;
1061
1062		*)
1063			bomb "Unknown operation \`${op}'"
1064			;;
1065
1066		esac
1067	done
1068
1069	statusmsg "${progname} started: ${build_start}"
1070	statusmsg "${progname} ended:   $(date)"
1071	if [ -s "${results}" ]; then
1072		echo "===> Summary of results:"
1073		sed -e 's/^===>//;s/^/	/' "${results}"
1074		echo "===> ."
1075	fi
1076}
1077
1078main "$@"
1079