build.sh revision 1.126
1#! /usr/bin/env sh
2#	$NetBSD: build.sh,v 1.126 2004/02/04 11:23:40 lukem 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=${MACHINE%-e[bl]}
195		;;
196
197	evbsh3)			# no default MACHINE_ARCH
198		;;
199
200	mmeye)
201		MACHINE_ARCH=sh3eb
202		;;
203
204	dreamcast|hpcsh)
205		MACHINE_ARCH=sh3el
206		;;
207
208	evbsh5)
209		MACHINE_ARCH=sh5el
210		;;
211	amd64)
212		MACHINE_ARCH=x86_64
213		;;
214
215	alpha|i386|sparc|sparc64|vax)
216		MACHINE_ARCH=${MACHINE}
217		;;
218
219	*)
220		bomb "Unknown target MACHINE: ${MACHINE}"
221		;;
222
223	esac
224}
225
226validatearch()
227{
228	# Ensure that the MACHINE_ARCH exists (and is supported by build.sh).
229	#
230	case "${MACHINE_ARCH}" in
231
232	alpha|arm|armeb|hppa|i386|m68000|m68k|mipse[bl]|ns32k|powerpc|sh[35]e[bl]|sparc|sparc64|vax|x86_64)
233		;;
234
235	"")
236		bomb "No MACHINE_ARCH provided"
237		;;
238
239	*)
240		bomb "Unknown target MACHINE_ARCH: ${MACHINE_ARCH}"
241		;;
242
243	esac
244
245	# Determine valid MACHINE_ARCHs for MACHINE
246	#
247	case "${MACHINE}" in
248
249	evbarm)
250		arches="arm armeb"
251		;;
252
253	evbmips|sbmips)
254		arches="mipseb mipsel"
255		;;
256
257	evbsh3)
258		arches="sh3eb sh3el"
259		;;
260
261	evbsh5)
262		arches="sh5eb sh5el"
263		;;
264
265	*)
266		oma="${MACHINE_ARCH}"
267		getarch
268		arches="${MACHINE_ARCH}"
269		MACHINE_ARCH="${oma}"
270		;;
271
272	esac
273
274	# Ensure that MACHINE_ARCH supports MACHINE
275	#
276	archok=false
277	for a in ${arches}; do
278		if [ "${a}" = "${MACHINE_ARCH}" ]; then
279			archok=true
280			break
281		fi
282	done
283	${archok} ||
284	    bomb "MACHINE_ARCH '${MACHINE_ARCH}' does not support MACHINE '${MACHINE}'"
285}
286
287raw_getmakevar()
288{
289	[ -x "${make}" ] || bomb "raw_getmakevar $1: ${make} is not executable"
290	"${make}" -m ${TOP}/share/mk -s -f- _x_ <<EOF
291_x_:
292	echo \${$1}
293.include <bsd.prog.mk>
294.include <bsd.kernobj.mk>
295EOF
296}
297
298getmakevar()
299{
300	# raw_getmakevar() doesn't work properly if $make hasn't yet been
301	# built, which can happen when running with the "-n" option.
302	# getmakevar() deals with this by emitting a literal '$'
303	# followed by the variable name, instead of trying to find the
304	# variable's value.
305	#
306	if [ -x "${make}" ]; then
307		raw_getmakevar "$1"
308	else
309		echo "\$$1"
310	fi
311}
312
313setmakeenv()
314{
315	eval "$1='$2'; export $1"
316	makeenv="${makeenv} $1"
317}
318
319unsetmakeenv()
320{
321	eval "unset $1"
322	makeenv="${makeenv} $1"
323}
324
325resolvepath()
326{
327	case "${OPTARG}" in
328	/*)
329		;;
330	*)
331		OPTARG="${TOP}/${OPTARG}"
332		;;
333	esac
334}
335
336usage()
337{
338	if [ -n "$*" ]; then
339		echo ""
340		echo "${progname}: $*"
341	fi
342	cat <<_usage_
343
344Usage: ${progname} [-EnorUu] [-a arch] [-B buildid] [-D dest] [-j njob]
345		[-M obj] [-m mach] [-N noisy] [-O obj] [-R release] [-T tools]
346		[-V var=[value]] [-w wrapper] [-Z var]   operation [...]
347
348 Build operations (all imply "obj" and "tools"):
349    build               Run "make build".
350    distribution        Run "make distribution" (includes DESTDIR/etc/ files).
351    release             Run "make release" (includes kernels & distrib media).
352
353 Other operations:
354    help                Show this message and exit.
355    makewrapper         Create ${toolprefix}make-\${MACHINE} wrapper and ${toolprefix}make.
356                        Always performed.
357    obj                 Run "make obj".  [Default unless -o is used]
358    tools               Build and install tools.
359    install=idir        Run "make installworld" to \`idir' to install all sets
360			except \`etc'.  Useful after "distribution" or "release"
361    kernel=conf         Build kernel with config file \`conf'
362    releasekernel=conf  Install kernel built by kernel=conf to RELEASEDIR.
363    sets                Create binary sets in RELEASEDIR/MACHINE/binary/sets.
364			DESTDIR should be populated beforehand.
365    sourcesets          Create source sets in RELEASEDIR/source/sets.
366    params              Display various make(1) parameters.
367
368 Options:
369    -a arch     Set MACHINE_ARCH to arch.  [Default: deduced from MACHINE]
370    -B buildId  Set BUILDID to buildId.
371    -D dest     Set DESTDIR to dest.  [Default: destdir.MACHINE]
372    -E          Set "expert" mode; disables various safety checks.
373                Should not be used without expert knowledge of the build system
374    -j njob     Run up to njob jobs in parallel; see make(1) -j.
375    -M obj      Set obj root directory to obj; sets MAKEOBJDIRPREFIX.
376                Unsets MAKEOBJDIR.
377    -m mach     Set MACHINE to mach; not required if NetBSD native.
378    -N noisy	Set the noisyness (MAKEVERBOSE) level of the build:
379		    0	Quiet
380		    1	Operations are described, commands are suppressed
381		    2	Full output
382		[Default: 2]
383    -n          Show commands that would be executed, but do not execute them.
384    -O obj      Set obj root directory to obj; sets a MAKEOBJDIR pattern.
385                Unsets MAKEOBJDIRPREFIX.
386    -o          Set MKOBJDIRS=no; do not create objdirs at start of build.
387    -R release  Set RELEASEDIR to release.  [Default: releasedir]
388    -r          Remove contents of TOOLDIR and DESTDIR before building.
389    -T tools    Set TOOLDIR to tools.  If unset, and TOOLDIR is not set in
390                the environment, ${toolprefix}make will be (re)built unconditionally.
391    -U          Set MKUNPRIVED=yes; build without requiring root privileges,
392    		install from an UNPRIVED build with proper file permissions.
393    -u          Set MKUPDATE=yes; do not run "make clean" first.
394		Without this, everything is rebuilt, including the tools.
395    -V v=[val]  Set variable \`v' to \`val'.
396    -w wrapper  Create ${toolprefix}make script as wrapper.
397                [Default: \${TOOLDIR}/bin/${toolprefix}make-\${MACHINE}]
398    -Z v        Unset ("zap") variable \`v'.
399
400_usage_
401	exit 1
402}
403
404parseoptions()
405{
406	opts='a:B:bD:dEhi:j:k:M:m:N:nO:oR:rT:tUuV:w:Z:'
407	opt_a=no
408
409	if type getopts >/dev/null 2>&1; then
410		# Use POSIX getopts.
411		#
412		getoptcmd='getopts ${opts} opt && opt=-${opt}'
413		optargcmd=':'
414		optremcmd='shift $((${OPTIND} -1))'
415	else
416		type getopt >/dev/null 2>&1 ||
417		    bomb "/bin/sh shell is too old; try ksh or bash"
418
419		# Use old-style getopt(1) (doesn't handle whitespace in args).
420		#
421		args="$(getopt ${opts} $*)"
422		[ $? = 0 ] || usage
423		set -- ${args}
424
425		getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
426		optargcmd='OPTARG="$1"; shift'
427		optremcmd=':'
428	fi
429
430	# Parse command line options.
431	#
432	while eval ${getoptcmd}; do
433		case ${opt} in
434
435		-a)
436			eval ${optargcmd}
437			MACHINE_ARCH=${OPTARG}
438			opt_a=yes
439			;;
440
441		-B)
442			eval ${optargcmd}
443			BUILDID=${OPTARG}
444			;;
445
446		-b)
447			usage "'-b' has been replaced by 'makewrapper'"
448			;;
449
450		-D)
451			eval ${optargcmd}; resolvepath
452			setmakeenv DESTDIR "${OPTARG}"
453			;;
454
455		-d)
456			usage "'-d' has been replaced by 'distribution'"
457			;;
458
459		-E)
460			do_expertmode=true
461			;;
462
463		-i)
464			usage "'-i idir' has been replaced by 'install=idir'"
465			;;
466
467		-j)
468			eval ${optargcmd}
469			parallel="-j ${OPTARG}"
470			;;
471
472		-k)
473			usage "'-k conf' has been replaced by 'kernel=conf'"
474			;;
475
476		-M)
477			eval ${optargcmd}; resolvepath
478			makeobjdir="${OPTARG}"
479			unsetmakeenv MAKEOBJDIR
480			setmakeenv MAKEOBJDIRPREFIX "${OPTARG}"
481			;;
482
483			# -m overrides MACHINE_ARCH unless "-a" is specified
484		-m)
485			eval ${optargcmd}
486			MACHINE="${OPTARG}"
487			[ "${opt_a}" != "yes" ] && getarch
488			;;
489
490		-N)
491			eval ${optargcmd}
492			case "${OPTARG}" in
493			0|1|2)
494				setmakeenv MAKEVERBOSE "${OPTARG}"
495				;;
496			*)
497				usage "'${OPTARG}' is not a valid value for -N"
498				;;
499			esac
500			;;
501
502		-n)
503			runcmd=echo
504			;;
505
506		-O)
507			eval ${optargcmd}; resolvepath
508			makeobjdir="${OPTARG}"
509			unsetmakeenv MAKEOBJDIRPREFIX
510			setmakeenv MAKEOBJDIR "\${.CURDIR:C,^$TOP,$OPTARG,}"
511			;;
512
513		-o)
514			MKOBJDIRS=no
515			;;
516
517		-R)
518			eval ${optargcmd}; resolvepath
519			setmakeenv RELEASEDIR "${OPTARG}"
520			;;
521
522		-r)
523			do_removedirs=true
524			do_rebuildmake=true
525			;;
526
527		-T)
528			eval ${optargcmd}; resolvepath
529			TOOLDIR="${OPTARG}"
530			export TOOLDIR
531			;;
532
533		-t)
534			usage "'-t' has been replaced by 'tools'"
535			;;
536
537		-U)
538			setmakeenv MKUNPRIVED yes
539			;;
540
541		-u)
542			setmakeenv MKUPDATE yes
543			;;
544
545		-V)
546			eval ${optargcmd}
547			case "${OPTARG}" in
548		    # XXX: consider restricting which variables can be changed?
549			[a-zA-Z_][a-zA-Z_0-9]*=*)
550				setmakeenv "${OPTARG%%=*}" "${OPTARG#*=}"
551				;;
552			*)
553				usage "-V argument must be of the form 'var=[value]'"
554				;;
555			esac
556			;;
557
558		-w)
559			eval ${optargcmd}; resolvepath
560			makewrapper="${OPTARG}"
561			;;
562
563		-Z)
564			eval ${optargcmd}
565		    # XXX: consider restricting which variables can be unset?
566			unsetmakeenv "${OPTARG}"
567			;;
568
569		--)
570			break
571			;;
572
573		-'?'|-h)
574			usage
575			;;
576
577		esac
578	done
579
580	# Validate operations.
581	#
582	eval ${optremcmd}
583	while [ $# -gt 0 ]; do
584		op=$1; shift
585		operations="${operations} ${op}"
586
587		case "${op}" in
588
589		help)
590			usage
591			;;
592
593		makewrapper|obj|tools|build|distribution|release|sets|sourcesets|params)
594			;;
595
596		kernel=*|releasekernel=*)
597			arg=${op#*=}
598			op=${op%%=*}
599			[ -n "${arg}" ] ||
600			    bomb "Must supply a kernel name with \`${op}=...'"
601			;;
602
603		install=*)
604			arg=${op#*=}
605			op=${op%%=*}
606			[ -n "${arg}" ] ||
607			    bomb "Must supply a directory with \`install=...'"
608			;;
609
610		*)
611			usage "Unknown operation \`${op}'"
612			;;
613
614		esac
615		eval do_${op}=true
616	done
617	[ -n "${operations}" ] || usage "Missing operation to perform."
618
619	# Set up MACHINE*.  On a NetBSD host, these are allowed to be unset.
620	#
621	if [ -z "${MACHINE}" ]; then
622		[ "${uname_s}" = "NetBSD" ] ||
623		    bomb "MACHINE must be set, or -m must be used, for cross builds."
624		MACHINE=${uname_m}
625	fi
626	[ -n "${MACHINE_ARCH}" ] || getarch
627	validatearch
628
629	# Set up default make(1) environment.
630	#
631	setmakeenv LC_ALL C
632	makeenv="${makeenv} TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
633	[ -z "${BUILDID}" ] || makeenv="${makeenv} BUILDID"
634	MAKEFLAGS="-de -m ${TOP}/share/mk ${MAKEFLAGS} MKOBJDIRS=${MKOBJDIRS-yes}"
635	export MAKEFLAGS MACHINE MACHINE_ARCH
636}
637
638rebuildmake()
639{
640	# Test make source file timestamps against installed ${toolprefix}make
641	# binary, if TOOLDIR is pre-set.
642	#
643	# Note that we do NOT try to grovel "mk.conf" here to find out if
644	# TOOLDIR is set there, because it can contain make variable
645	# expansions and other stuff only parseable *after* we have a working
646	# ${toolprefix}make.  So this logic can only work if the user has
647	# pre-set TOOLDIR in the environment or used the -T option to build.sh.
648	#
649	make="${TOOLDIR-nonexistent}/bin/${toolprefix}make"
650	if [ -x "${make}" ]; then
651		for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
652			if [ "${f}" -nt "${make}" ]; then
653				statusmsg "${make} outdated (older than ${f}), needs building."
654				do_rebuildmake=true
655				break
656			fi
657		done
658	else
659		statusmsg "No ${make}, needs building."
660		do_rebuildmake=true
661	fi
662
663	# Build bootstrap ${toolprefix}make if needed.
664	if ${do_rebuildmake}; then
665		statusmsg "Bootstrapping ${toolprefix}make"
666		${runcmd} cd "${tmpdir}"
667		${runcmd} env CC="${HOST_CC-cc}" CPPFLAGS="${HOST_CPPFLAGS}" \
668			CFLAGS="${HOST_CFLAGS--O}" LDFLAGS="${HOST_LDFLAGS}" \
669			sh "${TOP}/tools/make/configure" ||
670		    bomb "Configure of ${toolprefix}make failed"
671		${runcmd} sh buildmake.sh ||
672		    bomb "Build of ${toolprefix}make failed"
673		make="${tmpdir}/${toolprefix}make"
674		${runcmd} cd "${TOP}"
675		${runcmd} rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
676	fi
677}
678
679validatemakeparams()
680{
681	if [ "${runcmd}" = "echo" ]; then
682		TOOLCHAIN_MISSING=no
683		EXTERNAL_TOOLCHAIN=""
684	else
685		TOOLCHAIN_MISSING=$(raw_getmakevar TOOLCHAIN_MISSING)
686		EXTERNAL_TOOLCHAIN=$(raw_getmakevar EXTERNAL_TOOLCHAIN)
687	fi
688	if [ "${TOOLCHAIN_MISSING}" = "yes" ] && \
689	   [ -z "${EXTERNAL_TOOLCHAIN}" ]; then
690		${runcmd} echo "ERROR: build.sh (in-tree cross-toolchain) is not yet available for"
691		${runcmd} echo "	MACHINE:      ${MACHINE}"
692		${runcmd} echo "	MACHINE_ARCH: ${MACHINE_ARCH}"
693		${runcmd} echo ""
694		${runcmd} echo "All builds for this platform should be done via a traditional make"
695		${runcmd} echo "If you wish to use an external cross-toolchain, set"
696		${runcmd} echo "	EXTERNAL_TOOLCHAIN=<path to toolchain root>"
697		${runcmd} echo "in either the environment or mk.conf and rerun"
698		${runcmd} echo "	${progname} $*"
699		exit 1
700	fi
701
702	# Normalise MKOBJDIRS, MKUNPRIVED, and MKUPDATE
703	# These may be set as build.sh options or in "mk.conf".
704	# Don't export them as they're only used for tests in build.sh.
705	#
706	MKOBJDIRS=$(getmakevar MKOBJDIRS)
707	MKUNPRIVED=$(getmakevar MKUNPRIVED)
708	MKUPDATE=$(getmakevar MKUPDATE)
709
710	if [ "${MKOBJDIRS}" != "no" ]; then
711		# If setting -M or -O to the root of an obj dir, make sure
712		# the base directory is made before continuing as <bsd.own.mk>
713		# will need this to pick up _SRC_TOP_OBJ_
714		#
715		if [ ! -z "${makeobjdir}" ]; then
716			${runcmd} mkdir -p "${makeobjdir}"
717		fi
718
719		# make obj in tools to ensure that the objdir for the top-level
720		# of the source tree and for "tools" is available, in case the
721		# default TOOLDIR setting from <bsd.own.mk> is used, or the
722		# build.sh default DESTDIR and RELEASEDIR is to be used.
723		#
724		${runcmd} cd tools
725		${runcmd} "${make}" -m ${TOP}/share/mk obj NOSUBDIR= ||
726		    bomb "Failed to make obj in tools"
727		${runcmd} cd "${TOP}"
728	fi
729
730	statusmsg "MACHINE:          ${MACHINE}"
731	statusmsg "MACHINE_ARCH:     ${MACHINE_ARCH}"
732
733	# Find TOOLDIR, DESTDIR, and RELEASEDIR.
734	#
735	TOOLDIR=$(getmakevar TOOLDIR)
736	statusmsg "TOOLDIR path:     ${TOOLDIR}"
737	DESTDIR=$(getmakevar DESTDIR)
738	RELEASEDIR=$(getmakevar RELEASEDIR)
739	if ! $do_expertmode; then
740		_SRC_TOP_OBJ_=$(getmakevar _SRC_TOP_OBJ_)
741		: ${DESTDIR:=${_SRC_TOP_OBJ_}/destdir.${MACHINE}}
742		: ${RELEASEDIR:=${_SRC_TOP_OBJ_}/releasedir}
743		makeenv="${makeenv} DESTDIR RELEASEDIR"
744	fi
745	export TOOLDIR DESTDIR RELEASEDIR
746	statusmsg "DESTDIR path:     ${DESTDIR}"
747	statusmsg "RELEASEDIR path:  ${RELEASEDIR}"
748
749	# Check validity of TOOLDIR and DESTDIR.
750	#
751	if [ -z "${TOOLDIR}" ] || [ "${TOOLDIR}" = "/" ]; then
752		bomb "TOOLDIR '${TOOLDIR}' invalid"
753	fi
754	removedirs="${TOOLDIR}"
755
756	if [ -z "${DESTDIR}" ] || [ "${DESTDIR}" = "/" ]; then
757		if ${do_build} || ${do_distribution} || ${do_release}; then
758			if ! ${do_build} || \
759			   [ "${uname_s}" != "NetBSD" ] || \
760			   [ "${uname_m}" != "${MACHINE}" ]; then
761				bomb "DESTDIR must != / for cross builds, or ${progname} 'distribution' or 'release'."
762			fi
763			if ! ${do_expertmode}; then
764				bomb "DESTDIR must != / for non -E (expert) builds"
765			fi
766			statusmsg "WARNING: Building to /, in expert mode."
767			statusmsg "         This may cause your system to break!  Reasons include:"
768			statusmsg "            - your kernel is not up to date"
769			statusmsg "            - the libraries or toolchain have changed"
770			statusmsg "         YOU HAVE BEEN WARNED!"
771		fi
772	else
773		removedirs="${removedirs} ${DESTDIR}"
774	fi
775	if ${do_build} || ${do_distribution} || ${do_release}; then
776		if ! ${do_expertmode} && \
777		    [ $(id -u 2>/dev/null) -ne 0 ] && \
778		    [ "${MKUNPRIVED}" = "no" ] ; then
779			bomb "-U or -E must be set for build as an unprivileged user."
780		fi
781        fi
782	if ${do_releasekernel} && [ -z "${RELEASEDIR}" ]; then
783		bomb "Must set RELEASEDIR with \`releasekernel=...'"
784	fi
785}
786
787
788createmakewrapper()
789{
790	# Remove the target directories.
791	#
792	if ${do_removedirs}; then
793		for f in ${removedirs}; do
794			statusmsg "Removing ${f}"
795			${runcmd} rm -r -f "${f}"
796		done
797	fi
798
799	# Recreate $TOOLDIR.
800	#
801	${runcmd} mkdir -p "${TOOLDIR}/bin" ||
802	    bomb "mkdir of '${TOOLDIR}/bin' failed"
803
804	# Install ${toolprefix}make if it was built.
805	#
806	if ${do_rebuildmake}; then
807		${runcmd} rm -f "${TOOLDIR}/bin/${toolprefix}make"
808		${runcmd} cp "${make}" "${TOOLDIR}/bin/${toolprefix}make" ||
809		    bomb "Failed to install \$TOOLDIR/bin/${toolprefix}make"
810		make="${TOOLDIR}/bin/${toolprefix}make"
811		statusmsg "Created ${make}"
812	fi
813
814	# Build a ${toolprefix}make wrapper script, usable by hand as
815	# well as by build.sh.
816	#
817	if [ -z "${makewrapper}" ]; then
818		makewrapper="${TOOLDIR}/bin/${toolprefix}make-${makewrappermachine:-${MACHINE}}"
819		[ -z "${BUILDID}" ] || makewrapper="${makewrapper}-${BUILDID}"
820	fi
821
822	${runcmd} rm -f "${makewrapper}"
823	if [ "${runcmd}" = "echo" ]; then
824		echo 'cat <<EOF >'${makewrapper}
825		makewrapout=
826	else
827		makewrapout=">>\${makewrapper}"
828	fi
829
830	eval cat <<EOF ${makewrapout}
831#! /bin/sh
832# Set proper variables to allow easy "make" building of a NetBSD subtree.
833# Generated from:  \$NetBSD: build.sh,v 1.126 2004/02/04 11:23:40 lukem Exp $
834#
835
836EOF
837	for f in ${makeenv}; do
838		if eval "[ -z \"\${$f}\" -a \"\${${f}-X}\" = \"X\" ]"; then
839			eval echo "unset ${f}" ${makewrapout}
840		else
841			eval echo "${f}=\'\$$(echo ${f})\'\;\ export\ ${f}" ${makewrapout}
842		fi
843	done
844	eval echo "USETOOLS=yes\; export USETOOLS" ${makewrapout}
845
846	eval cat <<EOF ${makewrapout}
847
848exec "\${TOOLDIR}/bin/${toolprefix}make" \${1+"\$@"}
849EOF
850	[ "${runcmd}" = "echo" ] && echo EOF
851	${runcmd} chmod +x "${makewrapper}"
852	statusmsg "makewrapper:      ${makewrapper}"
853	statusmsg "Updated ${makewrapper}"
854}
855
856buildtools()
857{
858	if [ "${MKOBJDIRS}" != "no" ]; then
859		${runcmd} "${makewrapper}" ${parallel} obj-tools ||
860		    bomb "Failed to make obj-tools"
861	fi
862	${runcmd} cd tools
863	if [ "${MKUPDATE}" = "no" ]; then
864		cleandir=cleandir
865	else
866		cleandir=
867	fi
868	${runcmd} "${makewrapper}" ${cleandir} dependall install ||
869	    bomb "Failed to make tools"
870	statusmsg "Tools built to ${TOOLDIR}"
871	${runcmd} cd "${TOP}"
872}
873
874getkernelconf()
875{
876	kernelconf="$1"
877	if [ "${MKOBJDIRS}" != "no" ]; then
878		# The correct value of KERNOBJDIR might
879		# depend on a prior "make obj" in
880		# ${KERNSRCDIR}/${KERNARCHDIR}/compile.
881		#
882		KERNSRCDIR="$(getmakevar KERNSRCDIR)"
883		KERNARCHDIR="$(getmakevar KERNARCHDIR)"
884		${runcmd} cd "${KERNSRCDIR}/${KERNARCHDIR}/compile"
885		${runcmd} "${makewrapper}" obj ||
886		    bomb "Failed to make obj in ${KERNSRCDIR}/${KERNARCHDIR}/compile"
887		${runcmd} cd "${TOP}"
888	fi
889	KERNCONFDIR="$(getmakevar KERNCONFDIR)"
890	KERNOBJDIR="$(getmakevar KERNOBJDIR)"
891	case "${kernelconf}" in
892	*/*)
893		kernelconfpath="${kernelconf}"
894		kernelconfname="${kernelconf##*/}"
895		;;
896	*)
897		kernelconfpath="${KERNCONFDIR}/${kernelconf}"
898		kernelconfname="${kernelconf}"
899		;;
900	esac
901	kernelbuildpath="${KERNOBJDIR}/${kernelconfname}"
902}
903
904buildkernel()
905{
906	if ! ${do_tools} && ! ${buildkernelwarned:-false}; then
907		# Building tools every time we build a kernel is clearly
908		# unnecessary.  We could try to figure out whether rebuilding
909		# the tools is necessary this time, but it doesn't seem worth
910		# the trouble.  Instead, we say it's the user's responsibility
911		# to rebuild the tools if necessary.
912		#
913		statusmsg "Building kernel without building new tools"
914		buildkernelwarned=true
915	fi
916	getkernelconf $1
917	statusmsg "Building kernel:  ${kernelconf}"
918	statusmsg "Build directory:  ${kernelbuildpath}"
919	${runcmd} mkdir -p "${kernelbuildpath}" ||
920	    bomb "Cannot mkdir: ${kernelbuildpath}"
921	if [ "${MKUPDATE}" = "no" ]; then
922		${runcmd} cd "${kernelbuildpath}"
923		${runcmd} "${makewrapper}" cleandir ||
924		    bomb "Failed to make cleandir in ${kernelbuildpath}"
925		${runcmd} cd "${TOP}"
926	fi
927	${runcmd} "${TOOLDIR}/bin/${toolprefix}config" -b "${kernelbuildpath}" \
928		-s "${TOP}/sys" "${kernelconfpath}" ||
929	    bomb "${toolprefix}config failed for ${kernelconf}"
930	${runcmd} cd "${kernelbuildpath}"
931	${runcmd} "${makewrapper}" depend ||
932	    bomb "Failed to make depend in ${kernelbuildpath}"
933	${runcmd} "${makewrapper}" ${parallel} all ||
934	    bomb "Failed to make all in ${kernelbuildpath}"
935	${runcmd} cd "${TOP}"
936
937	if [ "${runcmd}" != "echo" ]; then
938		statusmsg "Kernels built from ${kernelconf}:"
939		kernlist=$(awk '$1 == "config" { print $2 }' ${kernelconfpath})
940		for kern in ${kernlist:-netbsd}; do
941			[ -f "${kernelbuildpath}/${kern}" ] && \
942			    echo "  ${kernelbuildpath}/${kern}"
943		done | tee -a "${results}"
944	fi
945}
946
947releasekernel()
948{
949	getkernelconf $1
950	kernelreldir="${RELEASEDIR}/${MACHINE}/binary/kernel"
951	${runcmd} mkdir -p "${kernelreldir}"
952	kernlist=$(awk '$1 == "config" { print $2 }' ${kernelconfpath})
953	for kern in ${kernlist:-netbsd}; do
954		builtkern="${kernelbuildpath}/${kern}"
955		[ -f "${builtkern}" ] || continue
956		releasekern="${kernelreldir}/${kern}-${kernelconfname}.gz"
957		statusmsg "Kernel copy:      ${releasekern}"
958		${runcmd} gzip -c -9 < "${builtkern}" > "${releasekern}"
959	done
960}
961
962installworld()
963{
964	dir="$1"
965	${runcmd} "${makewrapper}" INSTALLWORLDDIR="${dir}" installworld ||
966	    bomb "Failed to make installworld to ${dir}"
967	statusmsg "Successful installworld to ${dir}"
968}
969
970
971main()
972{
973	initdefaults
974	parseoptions "$@"
975
976	build_start=$(date)
977	statusmsg "${progname} command: $0 $@"
978	statusmsg "${progname} started: ${build_start}"
979
980	rebuildmake
981	validatemakeparams
982	createmakewrapper
983
984	# Perform the operations.
985	#
986	for op in ${operations}; do
987		case "${op}" in
988
989		makewrapper)
990			# no-op
991			;;
992
993		tools)
994			buildtools
995			;;
996
997		sets)
998			statusmsg "Building sets from pre-populated ${DESTDIR}"
999			${runcmd} "${makewrapper}" ${parallel} ${op} ||
1000			    bomb "Failed to make ${op}"
1001			statusmsg "Successful make ${op}"
1002			;;
1003			
1004		obj|build|distribution|release|sourcesets|params)
1005			${runcmd} "${makewrapper}" ${parallel} ${op} ||
1006			    bomb "Failed to make ${op}"
1007			statusmsg "Successful make ${op}"
1008			;;
1009
1010		kernel=*)
1011			arg=${op#*=}
1012			buildkernel "${arg}"
1013			;;
1014
1015		releasekernel=*)
1016			arg=${op#*=}
1017			releasekernel "${arg}"
1018			;;
1019
1020		install=*)
1021			arg=${op#*=}
1022			if [ "${arg}" = "/" ] && \
1023			    (	[ "${uname_s}" != "NetBSD" ] || \
1024				[ "${uname_m}" != "${MACHINE}" ] ); then
1025				bomb "'${op}' must != / for cross builds."
1026			fi
1027			installworld "${arg}"
1028			;;
1029
1030		*)
1031			bomb "Unknown operation \`${op}'"
1032			;;
1033
1034		esac
1035	done
1036
1037	statusmsg "${progname} started: ${build_start}"
1038	statusmsg "${progname} ended:   $(date)"
1039	if [ -s "${results}" ]; then
1040		echo "===> Summary of results:"
1041		sed -e 's/^===>//;s/^/	/' "${results}"
1042		echo "===> ."
1043	fi
1044}
1045
1046main "$@"
1047