xref: /netbsd-src/build.sh (revision 49d8c9ecf4abd21261269266ef64939f71b3cd09)
1#! /usr/bin/env sh
2#	$NetBSD: build.sh,v 1.276 2014/02/24 07:23:38 skrll Exp $
3#
4# Copyright (c) 2001-2011 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#
19# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29# POSSIBILITY OF SUCH DAMAGE.
30#
31#
32# Top level build wrapper, to build or cross-build NetBSD.
33#
34
35#
36# {{{ Begin shell feature tests.
37#
38# We try to determine whether or not this script is being run under
39# a shell that supports the features that we use.  If not, we try to
40# re-exec the script under another shell.  If we can't find another
41# suitable shell, then we print a message and exit.
42#
43
44errmsg=''		# error message, if not empty
45shelltest=false		# if true, exit after testing the shell
46re_exec_allowed=true	# if true, we may exec under another shell
47
48# Parse special command line options in $1.  These special options are
49# for internal use only, are not documented, and are not valid anywhere
50# other than $1.
51case "$1" in
52"--shelltest")
53    shelltest=true
54    re_exec_allowed=false
55    shift
56    ;;
57"--no-re-exec")
58    re_exec_allowed=false
59    shift
60    ;;
61esac
62
63# Solaris /bin/sh, and other SVR4 shells, do not support "!".
64# This is the first feature that we test, because subsequent
65# tests use "!".
66#
67if test -z "$errmsg"; then
68    if ( eval '! false' ) >/dev/null 2>&1 ; then
69	:
70    else
71	errmsg='Shell does not support "!".'
72    fi
73fi
74
75# Does the shell support functions?
76#
77if test -z "$errmsg"; then
78    if ! (
79	eval 'somefunction() { : ; }'
80	) >/dev/null 2>&1
81    then
82	errmsg='Shell does not support functions.'
83    fi
84fi
85
86# Does the shell support the "local" keyword for variables in functions?
87#
88# Local variables are not required by SUSv3, but some scripts run during
89# the NetBSD build use them.
90#
91# ksh93 fails this test; it uses an incompatible syntax involving the
92# keywords 'function' and 'typeset'.
93#
94if test -z "$errmsg"; then
95    if ! (
96	eval 'f() { local v=2; }; v=1; f && test x"$v" = x"1"'
97	) >/dev/null 2>&1
98    then
99	errmsg='Shell does not support the "local" keyword in functions.'
100    fi
101fi
102
103# Does the shell support ${var%suffix}, ${var#prefix}, and their variants?
104#
105# We don't bother testing for ${var+value}, ${var-value}, or their variants,
106# since shells without those are sure to fail other tests too.
107#
108if test -z "$errmsg"; then
109    if ! (
110	eval 'var=a/b/c ;
111	      test x"${var#*/};${var##*/};${var%/*};${var%%/*}" = \
112		   x"b/c;c;a/b;a" ;'
113	) >/dev/null 2>&1
114    then
115	errmsg='Shell does not support "${var%suffix}" or "${var#prefix}".'
116    fi
117fi
118
119# Does the shell support IFS?
120#
121# zsh in normal mode (as opposed to "emulate sh" mode) fails this test.
122#
123if test -z "$errmsg"; then
124    if ! (
125	eval 'IFS=: ; v=":a b::c" ; set -- $v ; IFS=+ ;
126		test x"$#;$1,$2,$3,$4;$*" = x"4;,a b,,c;+a b++c"'
127	) >/dev/null 2>&1
128    then
129	errmsg='Shell does not support IFS word splitting.'
130    fi
131fi
132
133# Does the shell support ${1+"$@"}?
134#
135# Some versions of zsh fail this test, even in "emulate sh" mode.
136#
137if test -z "$errmsg"; then
138    if ! (
139	eval 'set -- "a a a" "b b b"; set -- ${1+"$@"};
140	      test x"$#;$1;$2" = x"2;a a a;b b b";'
141	) >/dev/null 2>&1
142    then
143	errmsg='Shell does not support ${1+"$@"}.'
144    fi
145fi
146
147# Does the shell support $(...) command substitution?
148#
149if test -z "$errmsg"; then
150    if ! (
151	eval 'var=$(echo abc); test x"$var" = x"abc"'
152	) >/dev/null 2>&1
153    then
154	errmsg='Shell does not support "$(...)" command substitution.'
155    fi
156fi
157
158# Does the shell support $(...) command substitution with
159# unbalanced parentheses?
160#
161# Some shells known to fail this test are:  NetBSD /bin/ksh (as of 2009-12),
162# bash-3.1, pdksh-5.2.14, zsh-4.2.7 in "emulate sh" mode.
163#
164if test -z "$errmsg"; then
165    if ! (
166	eval 'var=$(case x in x) echo abc;; esac); test x"$var" = x"abc"'
167	) >/dev/null 2>&1
168    then
169	# XXX: This test is ignored because so many shells fail it; instead,
170	#      the NetBSD build avoids using the problematic construct.
171	: ignore 'Shell does not support "$(...)" with unbalanced ")".'
172    fi
173fi
174
175# Does the shell support getopts or getopt?
176#
177if test -z "$errmsg"; then
178    if ! (
179	eval 'type getopts || type getopt'
180	) >/dev/null 2>&1
181    then
182	errmsg='Shell does not support getopts or getopt.'
183    fi
184fi
185
186#
187# If shelltest is true, exit now, reporting whether or not the shell is good.
188#
189if $shelltest; then
190    if test -n "$errmsg"; then
191	echo >&2 "$0: $errmsg"
192	exit 1
193    else
194	exit 0
195    fi
196fi
197
198#
199# If the shell was bad, try to exec a better shell, or report an error.
200#
201# Loops are broken by passing an extra "--no-re-exec" flag to the new
202# instance of this script.
203#
204if test -n "$errmsg"; then
205    if $re_exec_allowed; then
206	for othershell in \
207	    "${HOST_SH}" /usr/xpg4/bin/sh ksh ksh88 mksh pdksh bash dash
208	    # NOTE: some shells known not to work are:
209	    # any shell using csh syntax;
210	    # Solaris /bin/sh (missing many modern features);
211	    # ksh93 (incompatible syntax for local variables);
212	    # zsh (many differences, unless run in compatibility mode).
213	do
214	    test -n "$othershell" || continue
215	    if eval 'type "$othershell"' >/dev/null 2>&1 \
216		&& "$othershell" "$0" --shelltest >/dev/null 2>&1
217	    then
218		cat <<EOF
219$0: $errmsg
220$0: Retrying under $othershell
221EOF
222		HOST_SH="$othershell"
223		export HOST_SH
224		exec $othershell "$0" --no-re-exec "$@" # avoid ${1+"$@"}
225	    fi
226	    # If HOST_SH was set, but failed the test above,
227	    # then give up without trying any other shells.
228	    test x"${othershell}" = x"${HOST_SH}" && break
229	done
230    fi
231
232    #
233    # If we get here, then the shell is bad, and we either could not
234    # find a replacement, or were not allowed to try a replacement.
235    #
236    cat <<EOF
237$0: $errmsg
238
239The NetBSD build system requires a shell that supports modern POSIX
240features, as well as the "local" keyword in functions (which is a
241widely-implemented but non-standardised feature).
242
243Please re-run this script under a suitable shell.  For example:
244
245	/path/to/suitable/shell $0 ...
246
247The above command will usually enable build.sh to automatically set
248HOST_SH=/path/to/suitable/shell, but if that fails, then you may also
249need to explicitly set the HOST_SH environment variable, as follows:
250
251	HOST_SH=/path/to/suitable/shell
252	export HOST_SH
253	\${HOST_SH} $0 ...
254EOF
255    exit 1
256fi
257
258#
259# }}} End shell feature tests.
260#
261
262progname=${0##*/}
263toppid=$$
264results=/dev/null
265tab='	'
266nl='
267'
268trap "exit 1" 1 2 3 15
269
270bomb()
271{
272	cat >&2 <<ERRORMESSAGE
273
274ERROR: $@
275*** BUILD ABORTED ***
276ERRORMESSAGE
277	kill ${toppid}		# in case we were invoked from a subshell
278	exit 1
279}
280
281
282statusmsg()
283{
284	${runcmd} echo "===> $@" | tee -a "${results}"
285}
286
287statusmsg2()
288{
289	local msg
290
291	msg="${1}"
292	shift
293	case "${msg}" in
294	????????????????*)	;;
295	??????????*)		msg="${msg}      ";;
296	?????*)			msg="${msg}           ";;
297	*)			msg="${msg}                ";;
298	esac
299	case "${msg}" in
300	?????????????????????*)	;;
301	????????????????????)	msg="${msg} ";;
302	???????????????????)	msg="${msg}  ";;
303	??????????????????)	msg="${msg}   ";;
304	?????????????????)	msg="${msg}    ";;
305	????????????????)	msg="${msg}     ";;
306	esac
307	statusmsg "${msg}$*"
308}
309
310warning()
311{
312	statusmsg "Warning: $@"
313}
314
315# Find a program in the PATH, and print the result.  If not found,
316# print a default.  If $2 is defined (even if it is an empty string),
317# then that is the default; otherwise, $1 is used as the default.
318find_in_PATH()
319{
320	local prog="$1"
321	local result="${2-"$1"}"
322	local oldIFS="${IFS}"
323	local dir
324	IFS=":"
325	for dir in ${PATH}; do
326		if [ -x "${dir}/${prog}" ]; then
327			result="${dir}/${prog}"
328			break
329		fi
330	done
331	IFS="${oldIFS}"
332	echo "${result}"
333}
334
335# Try to find a working POSIX shell, and set HOST_SH to refer to it.
336# Assumes that uname_s, uname_m, and PWD have been set.
337set_HOST_SH()
338{
339	# Even if ${HOST_SH} is already defined, we still do the
340	# sanity checks at the end.
341
342	# Solaris has /usr/xpg4/bin/sh.
343	#
344	[ -z "${HOST_SH}" ] && [ x"${uname_s}" = x"SunOS" ] && \
345		[ -x /usr/xpg4/bin/sh ] && HOST_SH="/usr/xpg4/bin/sh"
346
347	# Try to get the name of the shell that's running this script,
348	# by parsing the output from "ps".  We assume that, if the host
349	# system's ps command supports -o comm at all, it will do so
350	# in the usual way: a one-line header followed by a one-line
351	# result, possibly including trailing white space.  And if the
352	# host system's ps command doesn't support -o comm, we assume
353	# that we'll get an error message on stderr and nothing on
354	# stdout.  (We don't try to use ps -o 'comm=' to suppress the
355	# header line, because that is less widely supported.)
356	#
357	# If we get the wrong result here, the user can override it by
358	# specifying HOST_SH in the environment.
359	#
360	[ -z "${HOST_SH}" ] && HOST_SH="$(
361		(ps -p $$ -o comm | sed -ne "2s/[ ${tab}]*\$//p") 2>/dev/null )"
362
363	# If nothing above worked, use "sh".  We will later find the
364	# first directory in the PATH that has a "sh" program.
365	#
366	[ -z "${HOST_SH}" ] && HOST_SH="sh"
367
368	# If the result so far is not an absolute path, try to prepend
369	# PWD or search the PATH.
370	#
371	case "${HOST_SH}" in
372	/*)	:
373		;;
374	*/*)	HOST_SH="${PWD}/${HOST_SH}"
375		;;
376	*)	HOST_SH="$(find_in_PATH "${HOST_SH}")"
377		;;
378	esac
379
380	# If we don't have an absolute path by now, bomb.
381	#
382	case "${HOST_SH}" in
383	/*)	:
384		;;
385	*)	bomb "HOST_SH=\"${HOST_SH}\" is not an absolute path."
386		;;
387	esac
388
389	# If HOST_SH is not executable, bomb.
390	#
391	[ -x "${HOST_SH}" ] ||
392	    bomb "HOST_SH=\"${HOST_SH}\" is not executable."
393
394	# If HOST_SH fails tests, bomb.
395	# ("$0" may be a path that is no longer valid, because we have
396	# performed "cd $(dirname $0)", so don't use $0 here.)
397	#
398	"${HOST_SH}" build.sh --shelltest ||
399	    bomb "HOST_SH=\"${HOST_SH}\" failed functionality tests."
400}
401
402# initdefaults --
403# Set defaults before parsing command line options.
404#
405initdefaults()
406{
407	makeenv=
408	makewrapper=
409	makewrappermachine=
410	runcmd=
411	operations=
412	removedirs=
413
414	[ -d usr.bin/make ] || cd "$(dirname $0)"
415	[ -d usr.bin/make ] ||
416	    bomb "build.sh must be run from the top source level"
417	[ -f share/mk/bsd.own.mk ] ||
418	    bomb "src/share/mk is missing; please re-fetch the source tree"
419
420	# Set various environment variables to known defaults,
421	# to minimize (cross-)build problems observed "in the field".
422	#
423	# LC_ALL=C must be set before we try to parse the output from
424	# any command.  Other variables are set (or unset) here, before
425	# we parse command line arguments.
426	#
427	# These variables can be overridden via "-V var=value" if
428	# you know what you are doing.
429	#
430	unsetmakeenv INFODIR
431	unsetmakeenv LESSCHARSET
432	unsetmakeenv MAKEFLAGS
433	unsetmakeenv TERMINFO
434	setmakeenv LC_ALL C
435
436	# Find information about the build platform.  This should be
437	# kept in sync with _HOST_OSNAME, _HOST_OSREL, and _HOST_ARCH
438	# variables in share/mk/bsd.sys.mk.
439	#
440	# Note that "uname -p" is not part of POSIX, but we want uname_p
441	# to be set to the host MACHINE_ARCH, if possible.  On systems
442	# where "uname -p" fails, prints "unknown", or prints a string
443	# that does not look like an identifier, fall back to using the
444	# output from "uname -m" instead.
445	#
446	uname_s=$(uname -s 2>/dev/null)
447	uname_r=$(uname -r 2>/dev/null)
448	uname_m=$(uname -m 2>/dev/null)
449	uname_p=$(uname -p 2>/dev/null || echo "unknown")
450	case "${uname_p}" in
451	''|unknown|*[^-_A-Za-z0-9]*) uname_p="${uname_m}" ;;
452	esac
453
454	id_u=$(id -u 2>/dev/null || /usr/xpg4/bin/id -u 2>/dev/null)
455
456	# If $PWD is a valid name of the current directory, POSIX mandates
457	# that pwd return it by default which causes problems in the
458	# presence of symlinks.  Unsetting PWD is simpler than changing
459	# every occurrence of pwd to use -P.
460	#
461	# XXX Except that doesn't work on Solaris. Or many Linuces.
462	#
463	unset PWD
464	TOP=$(/bin/pwd -P 2>/dev/null || /bin/pwd 2>/dev/null)
465
466	# The user can set HOST_SH in the environment, or we try to
467	# guess an appropriate value.  Then we set several other
468	# variables from HOST_SH.
469	#
470	set_HOST_SH
471	setmakeenv HOST_SH "${HOST_SH}"
472	setmakeenv BSHELL "${HOST_SH}"
473	setmakeenv CONFIG_SHELL "${HOST_SH}"
474
475	# Set defaults.
476	#
477	toolprefix=nb
478
479	# Some systems have a small ARG_MAX.  -X prevents make(1) from
480	# exporting variables in the environment redundantly.
481	#
482	case "${uname_s}" in
483	Darwin | FreeBSD | CYGWIN*)
484		MAKEFLAGS="-X ${MAKEFLAGS}"
485		;;
486	esac
487
488	# do_{operation}=true if given operation is requested.
489	#
490	do_expertmode=false
491	do_rebuildmake=false
492	do_removedirs=false
493	do_tools=false
494	do_cleandir=false
495	do_obj=false
496	do_build=false
497	do_distribution=false
498	do_release=false
499	do_kernel=false
500	do_releasekernel=false
501	do_modules=false
502	do_installmodules=false
503	do_install=false
504	do_sets=false
505	do_sourcesets=false
506	do_syspkgs=false
507	do_iso_image=false
508	do_iso_image_source=false
509	do_live_image=false
510	do_install_image=false
511	do_disk_image=false
512	do_params=false
513	do_rump=false
514
515	# done_{operation}=true if given operation has been done.
516	#
517	done_rebuildmake=false
518
519	# Create scratch directory
520	#
521	tmpdir="${TMPDIR-/tmp}/nbbuild$$"
522	mkdir "${tmpdir}" || bomb "Cannot mkdir: ${tmpdir}"
523	trap "cd /; rm -r -f \"${tmpdir}\"" 0
524	results="${tmpdir}/build.sh.results"
525
526	# Set source directories
527	#
528	setmakeenv NETBSDSRCDIR "${TOP}"
529
530	# Make sure KERNOBJDIR is an absolute path if defined
531	#
532	case "${KERNOBJDIR}" in
533	''|/*)	;;
534	*)	KERNOBJDIR="${TOP}/${KERNOBJDIR}"
535		setmakeenv KERNOBJDIR "${KERNOBJDIR}"
536		;;
537	esac
538
539	# Find the version of NetBSD
540	#
541	DISTRIBVER="$(${HOST_SH} ${TOP}/sys/conf/osrelease.sh)"
542
543	# Set the BUILDSEED to NetBSD-"N"
544	#
545	setmakeenv BUILDSEED "NetBSD-$(${HOST_SH} ${TOP}/sys/conf/osrelease.sh -m)"
546
547	# Set MKARZERO to "yes"
548	#
549	setmakeenv MKARZERO "yes"
550
551}
552
553# valid_MACHINE_ARCH -- A multi-line string, listing all valid
554# MACHINE/MACHINE_ARCH pairs.
555#
556# Each line contains a MACHINE and MACHINE_ARCH value, an optional ALIAS
557# which may be used to refer to the MACHINE/MACHINE_ARCH pair, and an
558# optional DEFAULT or NO_DEFAULT keyword.
559#
560# When a MACHINE corresponds to multiple possible values of
561# MACHINE_ARCH, then this table should list all allowed combinations.
562# If the MACHINE is associated with a default MACHINE_ARCH (to be
563# used when the user specifies the MACHINE but fails to specify the
564# MACHINE_ARCH), then one of the lines should have the "DEFAULT"
565# keyword.  If there is no default MACHINE_ARCH for a particular
566# MACHINE, then there should be a line with the "NO_DEFAULT" keyword,
567# and with a blank MACHINE_ARCH.
568#
569valid_MACHINE_ARCH='
570MACHINE=acorn26		MACHINE_ARCH=arm
571MACHINE=acorn32		MACHINE_ARCH=arm
572MACHINE=algor		MACHINE_ARCH=mips64el	ALIAS=algor64
573MACHINE=algor		MACHINE_ARCH=mipsel	DEFAULT
574MACHINE=alpha		MACHINE_ARCH=alpha
575MACHINE=amd64		MACHINE_ARCH=x86_64
576MACHINE=amiga		MACHINE_ARCH=m68k
577MACHINE=amigappc	MACHINE_ARCH=powerpc
578MACHINE=arc		MACHINE_ARCH=mips64el	ALIAS=arc64
579MACHINE=arc		MACHINE_ARCH=mipsel	DEFAULT
580MACHINE=atari		MACHINE_ARCH=m68k
581MACHINE=bebox		MACHINE_ARCH=powerpc
582MACHINE=cats		MACHINE_ARCH=arm	DEFAULT
583MACHINE=cats		MACHINE_ARCH=earmv4	ALIAS=ecats
584MACHINE=cesfic		MACHINE_ARCH=m68k
585MACHINE=cobalt		MACHINE_ARCH=mips64el	ALIAS=cobalt64
586MACHINE=cobalt		MACHINE_ARCH=mipsel	DEFAULT
587MACHINE=dreamcast	MACHINE_ARCH=sh3el
588MACHINE=emips		MACHINE_ARCH=mipseb
589MACHINE=epoc32		MACHINE_ARCH=arm
590MACHINE=evbarm		MACHINE_ARCH=arm	ALIAS=evbarm-el	DEFAULT
591MACHINE=evbarm		MACHINE_ARCH=armeb	ALIAS=evbarm-eb
592MACHINE=evbarm		MACHINE_ARCH=earm	ALIAS=evbearm-el
593MACHINE=evbarm		MACHINE_ARCH=earmeb	ALIAS=evbearm-eb
594MACHINE=evbarm		MACHINE_ARCH=earmhf	ALIAS=evbearmhf-el
595MACHINE=evbarm		MACHINE_ARCH=earmhfeb	ALIAS=evbearmhf-eb
596MACHINE=evbarm		MACHINE_ARCH=earmv4	ALIAS=evbearmv4-el
597MACHINE=evbarm		MACHINE_ARCH=earmv4eb	ALIAS=evbearmv4-eb
598MACHINE=evbarm		MACHINE_ARCH=earmv5	ALIAS=evbearmv5-el
599MACHINE=evbarm		MACHINE_ARCH=earmv5eb	ALIAS=evbearmv5-eb
600MACHINE=evbarm		MACHINE_ARCH=earmv6	ALIAS=evbearmv6-el
601MACHINE=evbarm		MACHINE_ARCH=earmv6hf	ALIAS=evbearmv6hf-el
602MACHINE=evbarm		MACHINE_ARCH=earmv6eb	ALIAS=evbearmv6-eb
603MACHINE=evbarm		MACHINE_ARCH=earmv6hfeb	ALIAS=evbearmv6hf-eb
604MACHINE=evbarm		MACHINE_ARCH=earmv7	ALIAS=evbearmv7-el
605MACHINE=evbarm		MACHINE_ARCH=earmv7eb	ALIAS=evbearmv7-eb
606MACHINE=evbarm		MACHINE_ARCH=earmv7hf	ALIAS=evbearmv7hf-el
607MACHINE=evbarm		MACHINE_ARCH=earmv7hfeb	ALIAS=evbearmv7hf-eb
608MACHINE=evbcf		MACHINE_ARCH=coldfire
609MACHINE=evbmips		MACHINE_ARCH=		NO_DEFAULT
610MACHINE=evbmips		MACHINE_ARCH=mips64eb	ALIAS=evbmips64-eb
611MACHINE=evbmips		MACHINE_ARCH=mips64el	ALIAS=evbmips64-el
612MACHINE=evbmips		MACHINE_ARCH=mipseb	ALIAS=evbmips-eb
613MACHINE=evbmips		MACHINE_ARCH=mipsel	ALIAS=evbmips-el
614MACHINE=evbppc		MACHINE_ARCH=powerpc	DEFAULT
615MACHINE=evbppc		MACHINE_ARCH=powerpc64	ALIAS=evbppc64
616MACHINE=evbsh3		MACHINE_ARCH=		NO_DEFAULT
617MACHINE=evbsh3		MACHINE_ARCH=sh3eb	ALIAS=evbsh3-eb
618MACHINE=evbsh3		MACHINE_ARCH=sh3el	ALIAS=evbsh3-el
619MACHINE=ews4800mips	MACHINE_ARCH=mipseb
620MACHINE=hp300		MACHINE_ARCH=m68k
621MACHINE=hppa		MACHINE_ARCH=hppa
622MACHINE=hpcarm		MACHINE_ARCH=arm	DEFAULT
623MACHINE=hpcarm		MACHINE_ARCH=earm	ALIAS=hpcearm
624MACHINE=hpcmips		MACHINE_ARCH=mipsel
625MACHINE=hpcsh		MACHINE_ARCH=sh3el
626MACHINE=i386		MACHINE_ARCH=i386
627MACHINE=ia64		MACHINE_ARCH=ia64
628MACHINE=ibmnws		MACHINE_ARCH=powerpc
629MACHINE=iyonix		MACHINE_ARCH=arm	DEFAULT
630MACHINE=iyonix		MACHINE_ARCH=earm	ALIAS=eiyonix
631MACHINE=landisk		MACHINE_ARCH=sh3el
632MACHINE=luna68k		MACHINE_ARCH=m68k
633MACHINE=mac68k		MACHINE_ARCH=m68k
634MACHINE=macppc		MACHINE_ARCH=powerpc	DEFAULT
635MACHINE=macppc		MACHINE_ARCH=powerpc64	ALIAS=macppc64
636MACHINE=mipsco		MACHINE_ARCH=mipseb
637MACHINE=mmeye		MACHINE_ARCH=sh3eb
638MACHINE=mvme68k		MACHINE_ARCH=m68k
639MACHINE=mvmeppc		MACHINE_ARCH=powerpc
640MACHINE=netwinder	MACHINE_ARCH=arm	DEFAULT
641MACHINE=netwinder	MACHINE_ARCH=earmv4	ALIAS=enetwinder
642MACHINE=news68k		MACHINE_ARCH=m68k
643MACHINE=newsmips	MACHINE_ARCH=mipseb
644MACHINE=next68k		MACHINE_ARCH=m68k
645MACHINE=ofppc		MACHINE_ARCH=powerpc	DEFAULT
646MACHINE=ofppc		MACHINE_ARCH=powerpc64	ALIAS=ofppc64
647MACHINE=pmax		MACHINE_ARCH=mips64el	ALIAS=pmax64
648MACHINE=pmax		MACHINE_ARCH=mipsel	DEFAULT
649MACHINE=prep		MACHINE_ARCH=powerpc
650MACHINE=rs6000		MACHINE_ARCH=powerpc
651MACHINE=sandpoint	MACHINE_ARCH=powerpc
652MACHINE=sbmips		MACHINE_ARCH=		NO_DEFAULT
653MACHINE=sbmips		MACHINE_ARCH=mips64eb	ALIAS=sbmips64-eb
654MACHINE=sbmips		MACHINE_ARCH=mips64el	ALIAS=sbmips64-el
655MACHINE=sbmips		MACHINE_ARCH=mipseb	ALIAS=sbmips-eb
656MACHINE=sbmips		MACHINE_ARCH=mipsel	ALIAS=sbmips-el
657MACHINE=sgimips		MACHINE_ARCH=mips64eb	ALIAS=sgimips64
658MACHINE=sgimips		MACHINE_ARCH=mipseb	DEFAULT
659MACHINE=shark		MACHINE_ARCH=arm	DEFAULT
660MACHINE=shark		MACHINE_ARCH=earmv4	ALIAS=eshark
661MACHINE=sparc		MACHINE_ARCH=sparc
662MACHINE=sparc64		MACHINE_ARCH=sparc64
663MACHINE=sun2		MACHINE_ARCH=m68000
664MACHINE=sun3		MACHINE_ARCH=m68k
665MACHINE=vax		MACHINE_ARCH=vax
666MACHINE=x68k		MACHINE_ARCH=m68k
667MACHINE=zaurus		MACHINE_ARCH=arm	DEFAULT
668MACHINE=zaurus		MACHINE_ARCH=earm	ALIAS=ezaurus
669'
670
671# getarch -- find the default MACHINE_ARCH for a MACHINE,
672# or convert an alias to a MACHINE/MACHINE_ARCH pair.
673#
674# Saves MACHINE in makewrappermachine before possibly modifying MACHINE.
675#
676# Sets MACHINE and MACHINE_ARCH if the input MACHINE value is
677# recognised as an alias, or recognised as a machine that has a default
678# MACHINE_ARCH (or that has only one possible MACHINE_ARCH).
679#
680# Leaves MACHINE and MACHINE_ARCH unchanged if MACHINE is recognised
681# as being associated with multiple MACHINE_ARCH values with no default.
682#
683# Bombs if MACHINE is not recognised.
684#
685getarch()
686{
687	local IFS
688	local found=""
689	local line
690
691	IFS="${nl}"
692	makewrappermachine="${MACHINE}"
693	for line in ${valid_MACHINE_ARCH}; do
694		line="${line%%#*}" # ignore comments
695		line="$( IFS=" ${tab}" ; echo $line )" # normalise white space
696		case "${line} " in
697		"")
698			# skip blank lines or comment lines
699			continue
700			;;
701		*" ALIAS=${MACHINE} "*)
702			# Found a line with a matching ALIAS=<alias>.
703			found="$line"
704			break
705			;;
706		"MACHINE=${MACHINE} "*" NO_DEFAULT"*)
707			# Found an explicit "NO_DEFAULT" for this MACHINE.
708			found="$line"
709			break
710			;;
711		"MACHINE=${MACHINE} "*" DEFAULT"*)
712			# Found an explicit "DEFAULT" for this MACHINE.
713			found="$line"
714			break
715			;;
716		"MACHINE=${MACHINE} "*)
717			# Found a line for this MACHINE.  If it's the
718			# first such line, then tentatively accept it.
719			# If it's not the first matching line, then
720			# remember that there was more than one match.
721			case "$found" in
722			'')	found="$line" ;;
723			*)	found="MULTIPLE_MATCHES" ; break ;;
724			esac
725			;;
726		esac
727	done
728
729	case "$found" in
730	*NO_DEFAULT*|*MULTIPLE_MATCHES*)
731		# MACHINE is OK, but MACHINE_ARCH is still unknown
732		return
733		;;
734	"MACHINE="*" MACHINE_ARCH="*)
735		# Obey the MACHINE= and MACHINE_ARCH= parts of the line.
736		IFS=" "
737		for frag in ${found}; do
738			case "$frag" in
739			MACHINE=*|MACHINE_ARCH=*)
740				eval "$frag"
741				;;
742			esac
743		done
744		;;
745	*)
746		bomb "Unknown target MACHINE: ${MACHINE}"
747		;;
748	esac
749}
750
751# validatearch -- check that the MACHINE/MACHINE_ARCH pair is supported.
752#
753# Bombs if the pair is not supported.
754#
755validatearch()
756{
757	local IFS
758	local line
759	local foundpair=false foundmachine=false foundarch=false
760
761	case "${MACHINE_ARCH}" in
762	"")
763		bomb "No MACHINE_ARCH provided"
764		;;
765	esac
766
767	IFS="${nl}"
768	for line in ${valid_MACHINE_ARCH}; do
769		line="${line%%#*}" # ignore comments
770		line="$( IFS=" ${tab}" ; echo $line )" # normalise white space
771		case "${line} " in
772		"")
773			# skip blank lines or comment lines
774			continue
775			;;
776		"MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH} "*)
777			foundpair=true
778			;;
779		"MACHINE=${MACHINE} "*)
780			foundmachine=true
781			;;
782		*"MACHINE_ARCH=${MACHINE_ARCH} "*)
783			foundarch=true
784			;;
785		esac
786	done
787
788	case "${foundpair}:${foundmachine}:${foundarch}" in
789	true:*)
790		: OK
791		;;
792	*:false:*)
793		bomb "Unknown target MACHINE: ${MACHINE}"
794		;;
795	*:*:false)
796		bomb "Unknown target MACHINE_ARCH: ${MACHINE_ARCH}"
797		;;
798	*)
799		bomb "MACHINE_ARCH '${MACHINE_ARCH}' does not support MACHINE '${MACHINE}'"
800		;;
801	esac
802}
803
804# nobomb_getmakevar --
805# Given the name of a make variable in $1, print make's idea of the
806# value of that variable, or return 1 if there's an error.
807#
808nobomb_getmakevar()
809{
810	[ -x "${make}" ] || return 1
811	"${make}" -m ${TOP}/share/mk -s -B -f- _x_ <<EOF || return 1
812_x_:
813	echo \${$1}
814.include <bsd.prog.mk>
815.include <bsd.kernobj.mk>
816EOF
817}
818
819# bomb_getmakevar --
820# Given the name of a make variable in $1, print make's idea of the
821# value of that variable, or bomb if there's an error.
822#
823bomb_getmakevar()
824{
825	[ -x "${make}" ] || bomb "bomb_getmakevar $1: ${make} is not executable"
826	nobomb_getmakevar "$1" || bomb "bomb_getmakevar $1: ${make} failed"
827}
828
829# getmakevar --
830# Given the name of a make variable in $1, print make's idea of the
831# value of that variable, or print a literal '$' followed by the
832# variable name if ${make} is not executable.  This is intended for use in
833# messages that need to be readable even if $make hasn't been built,
834# such as when build.sh is run with the "-n" option.
835#
836getmakevar()
837{
838	if [ -x "${make}" ]; then
839		bomb_getmakevar "$1"
840	else
841		echo "\$$1"
842	fi
843}
844
845setmakeenv()
846{
847	eval "$1='$2'; export $1"
848	makeenv="${makeenv} $1"
849}
850
851unsetmakeenv()
852{
853	eval "unset $1"
854	makeenv="${makeenv} $1"
855}
856
857# Given a variable name in $1, modify the variable in place as follows:
858# For each space-separated word in the variable, call resolvepath.
859resolvepaths()
860{
861	local var="$1"
862	local val
863	eval val=\"\${${var}}\"
864	local newval=''
865	local word
866	for word in ${val}; do
867		resolvepath word
868		newval="${newval}${newval:+ }${word}"
869	done
870	eval ${var}=\"\${newval}\"
871}
872
873# Given a variable name in $1, modify the variable in place as follows:
874# Convert possibly-relative path to absolute path by prepending
875# ${TOP} if necessary.  Also delete trailing "/", if any.
876resolvepath()
877{
878	local var="$1"
879	local val
880	eval val=\"\${${var}}\"
881	case "${val}" in
882	/)
883		;;
884	/*)
885		val="${val%/}"
886		;;
887	*)
888		val="${TOP}/${val%/}"
889		;;
890	esac
891	eval ${var}=\"\${val}\"
892}
893
894usage()
895{
896	if [ -n "$*" ]; then
897		echo ""
898		echo "${progname}: $*"
899	fi
900	cat <<_usage_
901
902Usage: ${progname} [-EhnorUuxy] [-a arch] [-B buildid] [-C cdextras]
903                [-D dest] [-j njob] [-M obj] [-m mach] [-N noisy]
904                [-O obj] [-R release] [-S seed] [-T tools]
905                [-V var=[value]] [-w wrapper] [-X x11src] [-Y extsrcsrc]
906                [-Z var]
907                operation [...]
908
909 Build operations (all imply "obj" and "tools"):
910    build               Run "make build".
911    distribution        Run "make distribution" (includes DESTDIR/etc/ files).
912    release             Run "make release" (includes kernels & distrib media).
913
914 Other operations:
915    help                Show this message and exit.
916    makewrapper         Create ${toolprefix}make-\${MACHINE} wrapper and ${toolprefix}make.
917                        Always performed.
918    cleandir            Run "make cleandir".  [Default unless -u is used]
919    obj                 Run "make obj".  [Default unless -o is used]
920    tools               Build and install tools.
921    install=idir        Run "make installworld" to \`idir' to install all sets
922                        except \`etc'.  Useful after "distribution" or "release"
923    kernel=conf         Build kernel with config file \`conf'
924    releasekernel=conf  Install kernel built by kernel=conf to RELEASEDIR.
925    installmodules=idir Run "make installmodules" to \`idir' to install all
926                        kernel modules.
927    modules             Build kernel modules.
928    rumptest            Do a linktest for rump (for developers).
929    sets                Create binary sets in
930                        RELEASEDIR/RELEASEMACHINEDIR/binary/sets.
931                        DESTDIR should be populated beforehand.
932    sourcesets          Create source sets in RELEASEDIR/source/sets.
933    syspkgs             Create syspkgs in
934                        RELEASEDIR/RELEASEMACHINEDIR/binary/syspkgs.
935    iso-image           Create CD-ROM image in RELEASEDIR/iso.
936    iso-image-source    Create CD-ROM image with source in RELEASEDIR/iso.
937    live-image          Create bootable live image in
938                        RELEASEDIR/RELEASEMACHINEDIR/installation/liveimage.
939    install-image       Create bootable installation image in
940                        RELEASEDIR/RELEASEMACHINEDIR/installation/installimage.
941    disk-image=target	Creae bootable disk image in
942			RELEASEDIR/RELEASEMACHINEDIR/binary/gzimg/target.img.gz.
943    params              Display various make(1) parameters.
944
945 Options:
946    -a arch        Set MACHINE_ARCH to arch.  [Default: deduced from MACHINE]
947    -B buildid     Set BUILDID to buildid.
948    -C cdextras    Append cdextras to CDEXTRA variable for inclusion on CD-ROM.
949    -D dest        Set DESTDIR to dest.  [Default: destdir.MACHINE]
950    -E             Set "expert" mode; disables various safety checks.
951                   Should not be used without expert knowledge of the build system.
952    -h             Print this help message.
953    -j njob        Run up to njob jobs in parallel; see make(1) -j.
954    -M obj         Set obj root directory to obj; sets MAKEOBJDIRPREFIX.
955                   Unsets MAKEOBJDIR.
956    -m mach        Set MACHINE to mach; not required if NetBSD native.
957    -N noisy       Set the noisyness (MAKEVERBOSE) level of the build:
958                       0   Minimal output ("quiet")
959                       1   Describe what is occurring
960                       2   Describe what is occurring and echo the actual command
961                       3   Ignore the effect of the "@" prefix in make commands
962                       4   Trace shell commands using the shell's -x flag
963                   [Default: 2]
964    -n             Show commands that would be executed, but do not execute them.
965    -O obj         Set obj root directory to obj; sets a MAKEOBJDIR pattern.
966                   Unsets MAKEOBJDIRPREFIX.
967    -o             Set MKOBJDIRS=no; do not create objdirs at start of build.
968    -R release     Set RELEASEDIR to release.  [Default: releasedir]
969    -r             Remove contents of TOOLDIR and DESTDIR before building.
970    -S seed        Set BUILDSEED to seed.  [Default: NetBSD-majorversion]
971    -T tools       Set TOOLDIR to tools.  If unset, and TOOLDIR is not set in
972                   the environment, ${toolprefix}make will be (re)built
973                   unconditionally.
974    -U             Set MKUNPRIVED=yes; build without requiring root privileges,
975                   install from an UNPRIVED build with proper file permissions.
976    -u             Set MKUPDATE=yes; do not run "make cleandir" first.
977                   Without this, everything is rebuilt, including the tools.
978    -V var=[value] Set variable \`var' to \`value'.
979    -w wrapper     Create ${toolprefix}make script as wrapper.
980                   [Default: \${TOOLDIR}/bin/${toolprefix}make-\${MACHINE}]
981    -X x11src      Set X11SRCDIR to x11src.  [Default: /usr/xsrc]
982    -x             Set MKX11=yes; build X11 from X11SRCDIR
983    -Y extsrcsrc   Set EXTSRCSRCDIR to extsrcsrc.  [Default: /usr/extsrc]
984    -y             Set MKEXTSRC=yes; build extsrc from EXTSRCSRCDIR
985    -Z var         Unset ("zap") variable \`var'.
986
987_usage_
988	exit 1
989}
990
991parseoptions()
992{
993	opts='a:B:C:D:Ehj:M:m:N:nO:oR:rS:T:UuV:w:X:xY:yZ:'
994	opt_a=no
995
996	if type getopts >/dev/null 2>&1; then
997		# Use POSIX getopts.
998		#
999		getoptcmd='getopts ${opts} opt && opt=-${opt}'
1000		optargcmd=':'
1001		optremcmd='shift $((${OPTIND} -1))'
1002	else
1003		type getopt >/dev/null 2>&1 ||
1004		    bomb "Shell does not support getopts or getopt"
1005
1006		# Use old-style getopt(1) (doesn't handle whitespace in args).
1007		#
1008		args="$(getopt ${opts} $*)"
1009		[ $? = 0 ] || usage
1010		set -- ${args}
1011
1012		getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
1013		optargcmd='OPTARG="$1"; shift'
1014		optremcmd=':'
1015	fi
1016
1017	# Parse command line options.
1018	#
1019	while eval ${getoptcmd}; do
1020		case ${opt} in
1021
1022		-a)
1023			eval ${optargcmd}
1024			MACHINE_ARCH=${OPTARG}
1025			opt_a=yes
1026			;;
1027
1028		-B)
1029			eval ${optargcmd}
1030			BUILDID=${OPTARG}
1031			;;
1032
1033		-C)
1034			eval ${optargcmd}; resolvepaths OPTARG
1035			CDEXTRA="${CDEXTRA}${CDEXTRA:+ }${OPTARG}"
1036			;;
1037
1038		-D)
1039			eval ${optargcmd}; resolvepath OPTARG
1040			setmakeenv DESTDIR "${OPTARG}"
1041			;;
1042
1043		-E)
1044			do_expertmode=true
1045			;;
1046
1047		-j)
1048			eval ${optargcmd}
1049			parallel="-j ${OPTARG}"
1050			;;
1051
1052		-M)
1053			eval ${optargcmd}; resolvepath OPTARG
1054			case "${OPTARG}" in
1055			\$*)	usage "-M argument must not begin with '\$'"
1056				;;
1057			*\$*)	# can use resolvepath, but can't set TOP_objdir
1058				resolvepath OPTARG
1059				;;
1060			*)	resolvepath OPTARG
1061				TOP_objdir="${OPTARG}${TOP}"
1062				;;
1063			esac
1064			unsetmakeenv MAKEOBJDIR
1065			setmakeenv MAKEOBJDIRPREFIX "${OPTARG}"
1066			;;
1067
1068			# -m overrides MACHINE_ARCH unless "-a" is specified
1069		-m)
1070			eval ${optargcmd}
1071			MACHINE="${OPTARG}"
1072			[ "${opt_a}" != "yes" ] && getarch
1073			;;
1074
1075		-N)
1076			eval ${optargcmd}
1077			case "${OPTARG}" in
1078			0|1|2|3|4)
1079				setmakeenv MAKEVERBOSE "${OPTARG}"
1080				;;
1081			*)
1082				usage "'${OPTARG}' is not a valid value for -N"
1083				;;
1084			esac
1085			;;
1086
1087		-n)
1088			runcmd=echo
1089			;;
1090
1091		-O)
1092			eval ${optargcmd}
1093			case "${OPTARG}" in
1094			*\$*)	usage "-O argument must not contain '\$'"
1095				;;
1096			*)	resolvepath OPTARG
1097				TOP_objdir="${OPTARG}"
1098				;;
1099			esac
1100			unsetmakeenv MAKEOBJDIRPREFIX
1101			setmakeenv MAKEOBJDIR "\${.CURDIR:C,^$TOP,$OPTARG,}"
1102			;;
1103
1104		-o)
1105			MKOBJDIRS=no
1106			;;
1107
1108		-R)
1109			eval ${optargcmd}; resolvepath OPTARG
1110			setmakeenv RELEASEDIR "${OPTARG}"
1111			;;
1112
1113		-r)
1114			do_removedirs=true
1115			do_rebuildmake=true
1116			;;
1117
1118		-S)
1119			eval ${optargcmd}
1120			setmakeenv BUILDSEED "${OPTARG}"
1121			;;
1122
1123		-T)
1124			eval ${optargcmd}; resolvepath OPTARG
1125			TOOLDIR="${OPTARG}"
1126			export TOOLDIR
1127			;;
1128
1129		-U)
1130			setmakeenv MKUNPRIVED yes
1131			;;
1132
1133		-u)
1134			setmakeenv MKUPDATE yes
1135			;;
1136
1137		-V)
1138			eval ${optargcmd}
1139			case "${OPTARG}" in
1140		    # XXX: consider restricting which variables can be changed?
1141			[a-zA-Z_][a-zA-Z_0-9]*=*)
1142				setmakeenv "${OPTARG%%=*}" "${OPTARG#*=}"
1143				;;
1144			*)
1145				usage "-V argument must be of the form 'var=[value]'"
1146				;;
1147			esac
1148			;;
1149
1150		-w)
1151			eval ${optargcmd}; resolvepath OPTARG
1152			makewrapper="${OPTARG}"
1153			;;
1154
1155		-X)
1156			eval ${optargcmd}; resolvepath OPTARG
1157			setmakeenv X11SRCDIR "${OPTARG}"
1158			;;
1159
1160		-x)
1161			setmakeenv MKX11 yes
1162			;;
1163
1164		-Y)
1165			eval ${optargcmd}; resolvepath OPTARG
1166			setmakeenv EXTSRCSRCDIR "${OPTARG}"
1167			;;
1168
1169		-y)
1170			setmakeenv MKEXTSRC yes
1171			;;
1172
1173		-Z)
1174			eval ${optargcmd}
1175		    # XXX: consider restricting which variables can be unset?
1176			unsetmakeenv "${OPTARG}"
1177			;;
1178
1179		--)
1180			break
1181			;;
1182
1183		-'?'|-h)
1184			usage
1185			;;
1186
1187		esac
1188	done
1189
1190	# Validate operations.
1191	#
1192	eval ${optremcmd}
1193	while [ $# -gt 0 ]; do
1194		op=$1; shift
1195		operations="${operations} ${op}"
1196
1197		case "${op}" in
1198
1199		help)
1200			usage
1201			;;
1202
1203		makewrapper|cleandir|obj|tools|build|distribution|release|sets|sourcesets|syspkgs|params)
1204			;;
1205
1206		iso-image)
1207			op=iso_image	# used as part of a variable name
1208			;;
1209
1210		iso-image-source)
1211			op=iso_image_source   # used as part of a variable name
1212			;;
1213
1214		live-image)
1215			op=live_image	# used as part of a variable name
1216			;;
1217
1218		install-image)
1219			op=install_image # used as part of a variable name
1220			;;
1221
1222		kernel=*|releasekernel=*)
1223			arg=${op#*=}
1224			op=${op%%=*}
1225			[ -n "${arg}" ] ||
1226			    bomb "Must supply a kernel name with \`${op}=...'"
1227			;;
1228
1229		disk-image=*)
1230			arg=${op#*=}
1231			op=disk_image
1232			[ -n "${arg}" ] ||
1233			    bomb "Must supply a target name with \`${op}=...'"
1234
1235			;;
1236
1237		modules)
1238			op=modules
1239			;;
1240
1241		install=*|installmodules=*)
1242			arg=${op#*=}
1243			op=${op%%=*}
1244			[ -n "${arg}" ] ||
1245			    bomb "Must supply a directory with \`install=...'"
1246			;;
1247
1248		rump|rumptest)
1249			op=${op}
1250			;;
1251
1252		*)
1253			usage "Unknown operation \`${op}'"
1254			;;
1255
1256		esac
1257		eval do_${op}=true
1258	done
1259	[ -n "${operations}" ] || usage "Missing operation to perform."
1260
1261	# Set up MACHINE*.  On a NetBSD host, these are allowed to be unset.
1262	#
1263	if [ -z "${MACHINE}" ]; then
1264		[ "${uname_s}" = "NetBSD" ] ||
1265		    bomb "MACHINE must be set, or -m must be used, for cross builds."
1266		MACHINE=${uname_m}
1267	fi
1268	[ -n "${MACHINE_ARCH}" ] || getarch
1269	validatearch
1270
1271	# Set up default make(1) environment.
1272	#
1273	makeenv="${makeenv} TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
1274	[ -z "${BUILDID}" ] || makeenv="${makeenv} BUILDID"
1275	MAKEFLAGS="-de -m ${TOP}/share/mk ${MAKEFLAGS}"
1276	MAKEFLAGS="${MAKEFLAGS} MKOBJDIRS=${MKOBJDIRS-yes}"
1277	export MAKEFLAGS MACHINE MACHINE_ARCH
1278}
1279
1280# sanitycheck --
1281# Sanity check after parsing command line options, before rebuildmake.
1282#
1283sanitycheck()
1284{
1285	# Install as non-root is a bad idea.
1286	#
1287	if ${do_install} && [ "$id_u" -ne 0 ] ; then
1288		if ${do_expertmode}; then
1289			warning "Will install as an unprivileged user."
1290		else
1291			bomb "-E must be set for install as an unprivileged user."
1292		fi
1293	fi
1294
1295	# If the PATH contains any non-absolute components (including,
1296	# but not limited to, "." or ""), then complain.  As an exception,
1297	# allow "" or "." as the last component of the PATH.  This is fatal
1298	# if expert mode is not in effect.
1299	#
1300	local path="${PATH}"
1301	path="${path%:}"	# delete trailing ":"
1302	path="${path%:.}"	# delete trailing ":."
1303	case ":${path}:/" in
1304	*:[!/]*)
1305		if ${do_expertmode}; then
1306			warning "PATH contains non-absolute components"
1307		else
1308			bomb "PATH environment variable must not" \
1309			     "contain non-absolute components"
1310		fi
1311		;;
1312	esac
1313}
1314
1315# print_tooldir_make --
1316# Try to find and print a path to an existing
1317# ${TOOLDIR}/bin/${toolprefix}make, for use by rebuildmake() before a
1318# new version of ${toolprefix}make has been built.
1319#
1320# * If TOOLDIR was set in the environment or on the command line, use
1321#   that value.
1322# * Otherwise try to guess what TOOLDIR would be if not overridden by
1323#   /etc/mk.conf, and check whether the resulting directory contains
1324#   a copy of ${toolprefix}make (this should work for everybody who
1325#   doesn't override TOOLDIR via /etc/mk.conf);
1326# * Failing that, search for ${toolprefix}make, nbmake, bmake, or make,
1327#   in the PATH (this might accidentally find a version of make that
1328#   does not understand the syntax used by NetBSD make, and that will
1329#   lead to failure in the next step);
1330# * If a copy of make was found above, try to use it with
1331#   nobomb_getmakevar to find the correct value for TOOLDIR, and believe the
1332#   result only if it's a directory that already exists;
1333# * If a value of TOOLDIR was found above, and if
1334#   ${TOOLDIR}/bin/${toolprefix}make exists, print that value.
1335#
1336print_tooldir_make()
1337{
1338	local possible_TOP_OBJ
1339	local possible_TOOLDIR
1340	local possible_make
1341	local tooldir_make
1342
1343	if [ -n "${TOOLDIR}" ]; then
1344		echo "${TOOLDIR}/bin/${toolprefix}make"
1345		return 0
1346	fi
1347
1348	# Set host_ostype to something like "NetBSD-4.5.6-i386".  This
1349	# is intended to match the HOST_OSTYPE variable in <bsd.own.mk>.
1350	#
1351	local host_ostype="${uname_s}-$(
1352		echo "${uname_r}" | sed -e 's/([^)]*)//g' -e 's/ /_/g'
1353		)-$(
1354		echo "${uname_p}" | sed -e 's/([^)]*)//g' -e 's/ /_/g'
1355		)"
1356
1357	# Look in a few potential locations for
1358	# ${possible_TOOLDIR}/bin/${toolprefix}make.
1359	# If we find it, then set possible_make.
1360	#
1361	# In the usual case (without interference from environment
1362	# variables or /etc/mk.conf), <bsd.own.mk> should set TOOLDIR to
1363	# "${_SRC_TOP_OBJ_}/tooldir.${host_ostype}".
1364	#
1365	# In practice it's difficult to figure out the correct value
1366	# for _SRC_TOP_OBJ_.  In the easiest case, when the -M or -O
1367	# options were passed to build.sh, then ${TOP_objdir} will be
1368	# the correct value.  We also try a few other possibilities, but
1369	# we do not replicate all the logic of <bsd.obj.mk>.
1370	#
1371	for possible_TOP_OBJ in \
1372		"${TOP_objdir}" \
1373		"${MAKEOBJDIRPREFIX:+${MAKEOBJDIRPREFIX}${TOP}}" \
1374		"${TOP}" \
1375		"${TOP}/obj" \
1376		"${TOP}/obj.${MACHINE}"
1377	do
1378		[ -n "${possible_TOP_OBJ}" ] || continue
1379		possible_TOOLDIR="${possible_TOP_OBJ}/tooldir.${host_ostype}"
1380		possible_make="${possible_TOOLDIR}/bin/${toolprefix}make"
1381		if [ -x "${possible_make}" ]; then
1382			break
1383		else
1384			unset possible_make
1385		fi
1386	done
1387
1388	# If the above didn't work, search the PATH for a suitable
1389	# ${toolprefix}make, nbmake, bmake, or make.
1390	#
1391	: ${possible_make:=$(find_in_PATH ${toolprefix}make '')}
1392	: ${possible_make:=$(find_in_PATH nbmake '')}
1393	: ${possible_make:=$(find_in_PATH bmake '')}
1394	: ${possible_make:=$(find_in_PATH make '')}
1395
1396	# At this point, we don't care whether possible_make is in the
1397	# correct TOOLDIR or not; we simply want it to be usable by
1398	# getmakevar to help us find the correct TOOLDIR.
1399	#
1400	# Use ${possible_make} with nobomb_getmakevar to try to find
1401	# the value of TOOLDIR.  Believe the result only if it's
1402	# a directory that already exists and contains bin/${toolprefix}make.
1403	#
1404	if [ -x "${possible_make}" ]; then
1405		possible_TOOLDIR="$(
1406			make="${possible_make}" \
1407			nobomb_getmakevar TOOLDIR 2>/dev/null
1408			)"
1409		if [ $? = 0 ] && [ -n "${possible_TOOLDIR}" ] \
1410		    && [ -d "${possible_TOOLDIR}" ];
1411		then
1412			tooldir_make="${possible_TOOLDIR}/bin/${toolprefix}make"
1413			if [ -x "${tooldir_make}" ]; then
1414				echo "${tooldir_make}"
1415				return 0
1416			fi
1417		fi
1418	fi
1419	return 1
1420}
1421
1422# rebuildmake --
1423# Rebuild nbmake in a temporary directory if necessary.  Sets $make
1424# to a path to the nbmake executable.  Sets done_rebuildmake=true
1425# if nbmake was rebuilt.
1426#
1427# There is a cyclic dependency between building nbmake and choosing
1428# TOOLDIR: TOOLDIR may be affected by settings in /etc/mk.conf, so we
1429# would like to use getmakevar to get the value of TOOLDIR; but we can't
1430# use getmakevar before we have an up to date version of nbmake; we
1431# might already have an up to date version of nbmake in TOOLDIR, but we
1432# don't yet know where TOOLDIR is.
1433#
1434# The default value of TOOLDIR also depends on the location of the top
1435# level object directory, so $(getmakevar TOOLDIR) invoked before or
1436# after making the top level object directory may produce different
1437# results.
1438#
1439# Strictly speaking, we should do the following:
1440#
1441#    1. build a new version of nbmake in a temporary directory;
1442#    2. use the temporary nbmake to create the top level obj directory;
1443#    3. use $(getmakevar TOOLDIR) with the temporary nbmake to
1444#       get the correct value of TOOLDIR;
1445#    4. move the temporary nbmake to ${TOOLDIR}/bin/nbmake.
1446#
1447# However, people don't like building nbmake unnecessarily if their
1448# TOOLDIR has not changed since an earlier build.  We try to avoid
1449# rebuilding a temporary version of nbmake by taking some shortcuts to
1450# guess a value for TOOLDIR, looking for an existing version of nbmake
1451# in that TOOLDIR, and checking whether that nbmake is newer than the
1452# sources used to build it.
1453#
1454rebuildmake()
1455{
1456	make="$(print_tooldir_make)"
1457	if [ -n "${make}" ] && [ -x "${make}" ]; then
1458		for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
1459			if [ "${f}" -nt "${make}" ]; then
1460				statusmsg "${make} outdated" \
1461					"(older than ${f}), needs building."
1462				do_rebuildmake=true
1463				break
1464			fi
1465		done
1466	else
1467		statusmsg "No \$TOOLDIR/bin/${toolprefix}make, needs building."
1468		do_rebuildmake=true
1469	fi
1470
1471	# Build bootstrap ${toolprefix}make if needed.
1472	if ${do_rebuildmake}; then
1473		statusmsg "Bootstrapping ${toolprefix}make"
1474		${runcmd} cd "${tmpdir}"
1475		${runcmd} env CC="${HOST_CC-cc}" CPPFLAGS="${HOST_CPPFLAGS}" \
1476			CFLAGS="${HOST_CFLAGS--O}" LDFLAGS="${HOST_LDFLAGS}" \
1477			${HOST_SH} "${TOP}/tools/make/configure" ||
1478		    ( cp ${tmpdir}/config.log ${tmpdir}-config.log
1479		      bomb "Configure of ${toolprefix}make failed, see ${tmpdir}-config.log for details" )
1480		${runcmd} ${HOST_SH} buildmake.sh ||
1481		    bomb "Build of ${toolprefix}make failed"
1482		make="${tmpdir}/${toolprefix}make"
1483		${runcmd} cd "${TOP}"
1484		${runcmd} rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
1485		done_rebuildmake=true
1486	fi
1487}
1488
1489# validatemakeparams --
1490# Perform some late sanity checks, after rebuildmake,
1491# but before createmakewrapper or any real work.
1492#
1493# Creates the top-level obj directory, because that
1494# is needed by some of the sanity checks.
1495#
1496# Prints status messages reporting the values of several variables.
1497#
1498validatemakeparams()
1499{
1500	# MAKECONF (which defaults to /etc/mk.conf in share/mk/bsd.own.mk)
1501	# can affect many things, so mention it in an early status message.
1502	#
1503	MAKECONF=$(getmakevar MAKECONF)
1504	if [ -e "${MAKECONF}" ]; then
1505		statusmsg2 "MAKECONF file:" "${MAKECONF}"
1506	else
1507		statusmsg2 "MAKECONF file:" "${MAKECONF} (File not found)"
1508	fi
1509
1510	# Normalise MKOBJDIRS, MKUNPRIVED, and MKUPDATE.
1511	# These may be set as build.sh options or in "mk.conf".
1512	# Don't export them as they're only used for tests in build.sh.
1513	#
1514	MKOBJDIRS=$(getmakevar MKOBJDIRS)
1515	MKUNPRIVED=$(getmakevar MKUNPRIVED)
1516	MKUPDATE=$(getmakevar MKUPDATE)
1517
1518	# Non-root should always use either the -U or -E flag.
1519	#
1520	if ! ${do_expertmode} && \
1521	    [ "$id_u" -ne 0 ] && \
1522	    [ "${MKUNPRIVED}" = "no" ] ; then
1523		bomb "-U or -E must be set for build as an unprivileged user."
1524	fi
1525
1526	if [ "${runcmd}" = "echo" ]; then
1527		TOOLCHAIN_MISSING=no
1528		EXTERNAL_TOOLCHAIN=""
1529	else
1530		TOOLCHAIN_MISSING=$(bomb_getmakevar TOOLCHAIN_MISSING)
1531		EXTERNAL_TOOLCHAIN=$(bomb_getmakevar EXTERNAL_TOOLCHAIN)
1532	fi
1533	if [ "${TOOLCHAIN_MISSING}" = "yes" ] && \
1534	   [ -z "${EXTERNAL_TOOLCHAIN}" ]; then
1535		${runcmd} echo "ERROR: build.sh (in-tree cross-toolchain) is not yet available for"
1536		${runcmd} echo "	MACHINE:      ${MACHINE}"
1537		${runcmd} echo "	MACHINE_ARCH: ${MACHINE_ARCH}"
1538		${runcmd} echo ""
1539		${runcmd} echo "All builds for this platform should be done via a traditional make"
1540		${runcmd} echo "If you wish to use an external cross-toolchain, set"
1541		${runcmd} echo "	EXTERNAL_TOOLCHAIN=<path to toolchain root>"
1542		${runcmd} echo "in either the environment or mk.conf and rerun"
1543		${runcmd} echo "	${progname} $*"
1544		exit 1
1545	fi
1546
1547	if [ "${MKOBJDIRS}" != "no" ]; then
1548		# Create the top-level object directory.
1549		#
1550		# "make obj NOSUBDIR=" can handle most cases, but it
1551		# can't handle the case where MAKEOBJDIRPREFIX is set
1552		# while the corresponding directory does not exist
1553		# (rules in <bsd.obj.mk> would abort the build).  We
1554		# therefore have to handle the MAKEOBJDIRPREFIX case
1555		# without invoking "make obj".  The MAKEOBJDIR case
1556		# could be handled either way, but we choose to handle
1557		# it similarly to MAKEOBJDIRPREFIX.
1558		#
1559		if [ -n "${TOP_obj}" ]; then
1560			# It must have been set by the "-M" or "-O"
1561			# command line options, so there's no need to
1562			# use getmakevar
1563			:
1564		elif [ -n "$MAKEOBJDIRPREFIX" ]; then
1565			TOP_obj="$(getmakevar MAKEOBJDIRPREFIX)${TOP}"
1566		elif [ -n "$MAKEOBJDIR" ]; then
1567			TOP_obj="$(getmakevar MAKEOBJDIR)"
1568		fi
1569		if [ -n "$TOP_obj" ]; then
1570			${runcmd} mkdir -p "${TOP_obj}" ||
1571			    bomb "Can't create top level object directory" \
1572					"${TOP_obj}"
1573		else
1574			${runcmd} "${make}" -m ${TOP}/share/mk obj NOSUBDIR= ||
1575			    bomb "Can't create top level object directory" \
1576					"using make obj"
1577		fi
1578
1579		# make obj in tools to ensure that the objdir for "tools"
1580		# is available.
1581		#
1582		${runcmd} cd tools
1583		${runcmd} "${make}" -m ${TOP}/share/mk obj NOSUBDIR= ||
1584		    bomb "Failed to make obj in tools"
1585		${runcmd} cd "${TOP}"
1586	fi
1587
1588	# Find TOOLDIR, DESTDIR, and RELEASEDIR, according to getmakevar,
1589	# and bomb if they have changed from the values we had from the
1590	# command line or environment.
1591	#
1592	# This must be done after creating the top-level object directory.
1593	#
1594	for var in TOOLDIR DESTDIR RELEASEDIR
1595	do
1596		eval oldval=\"\$${var}\"
1597		newval="$(getmakevar $var)"
1598		if ! $do_expertmode; then
1599			: ${_SRC_TOP_OBJ_:=$(getmakevar _SRC_TOP_OBJ_)}
1600			case "$var" in
1601			DESTDIR)
1602				: ${newval:=${_SRC_TOP_OBJ_}/destdir.${MACHINE}}
1603				makeenv="${makeenv} DESTDIR"
1604				;;
1605			RELEASEDIR)
1606				: ${newval:=${_SRC_TOP_OBJ_}/releasedir}
1607				makeenv="${makeenv} RELEASEDIR"
1608				;;
1609			esac
1610		fi
1611		if [ -n "$oldval" ] && [ "$oldval" != "$newval" ]; then
1612			bomb "Value of ${var} has changed" \
1613				"(was \"${oldval}\", now \"${newval}\")"
1614		fi
1615		eval ${var}=\"\${newval}\"
1616		eval export ${var}
1617		statusmsg2 "${var} path:" "${newval}"
1618	done
1619
1620	# RELEASEMACHINEDIR is just a subdir name, e.g. "i386".
1621	RELEASEMACHINEDIR=$(getmakevar RELEASEMACHINEDIR)
1622
1623	# Check validity of TOOLDIR and DESTDIR.
1624	#
1625	if [ -z "${TOOLDIR}" ] || [ "${TOOLDIR}" = "/" ]; then
1626		bomb "TOOLDIR '${TOOLDIR}' invalid"
1627	fi
1628	removedirs="${TOOLDIR}"
1629
1630	if [ -z "${DESTDIR}" ] || [ "${DESTDIR}" = "/" ]; then
1631		if ${do_distribution} || ${do_release} || \
1632		   [ "${uname_s}" != "NetBSD" ] || \
1633		   [ "${uname_m}" != "${MACHINE}" ]; then
1634			bomb "DESTDIR must != / for cross builds, or ${progname} 'distribution' or 'release'."
1635		fi
1636		if ! ${do_expertmode}; then
1637			bomb "DESTDIR must != / for non -E (expert) builds"
1638		fi
1639		statusmsg "WARNING: Building to /, in expert mode."
1640		statusmsg "         This may cause your system to break!  Reasons include:"
1641		statusmsg "            - your kernel is not up to date"
1642		statusmsg "            - the libraries or toolchain have changed"
1643		statusmsg "         YOU HAVE BEEN WARNED!"
1644	else
1645		removedirs="${removedirs} ${DESTDIR}"
1646	fi
1647	if ${do_releasekernel} && [ -z "${RELEASEDIR}" ]; then
1648		bomb "Must set RELEASEDIR with \`releasekernel=...'"
1649	fi
1650
1651	# If a previous build.sh run used -U (and therefore created a
1652	# METALOG file), then most subsequent build.sh runs must also
1653	# use -U.  If DESTDIR is about to be removed, then don't perform
1654	# this check.
1655	#
1656	case "${do_removedirs} ${removedirs} " in
1657	true*" ${DESTDIR} "*)
1658		# DESTDIR is about to be removed
1659		;;
1660	*)
1661		if [ -e "${DESTDIR}/METALOG" ] && \
1662		    [ "${MKUNPRIVED}" = "no" ] ; then
1663			if $do_expertmode; then
1664				warning "A previous build.sh run specified -U."
1665			else
1666				bomb "A previous build.sh run specified -U; you must specify it again now."
1667			fi
1668		fi
1669		;;
1670	esac
1671
1672	# live-image and install-image targets require binary sets
1673	# (actually DESTDIR/etc/mtree/set.* files) built with MKUNPRIVED.
1674	# If release operation is specified with live-image or install-image,
1675	# the release op should be performed with -U for later image ops.
1676	#
1677	if ${do_release} && ( ${do_live_image} || ${do_install_image} ) && \
1678	    [ "${MKUNPRIVED}" = "no" ] ; then
1679		bomb "-U must be specified on building release to create images later."
1680	fi
1681}
1682
1683
1684createmakewrapper()
1685{
1686	# Remove the target directories.
1687	#
1688	if ${do_removedirs}; then
1689		for f in ${removedirs}; do
1690			statusmsg "Removing ${f}"
1691			${runcmd} rm -r -f "${f}"
1692		done
1693	fi
1694
1695	# Recreate $TOOLDIR.
1696	#
1697	${runcmd} mkdir -p "${TOOLDIR}/bin" ||
1698	    bomb "mkdir of '${TOOLDIR}/bin' failed"
1699
1700	# If we did not previously rebuild ${toolprefix}make, then
1701	# check whether $make is still valid and the same as the output
1702	# from print_tooldir_make.  If not, then rebuild make now.  A
1703	# possible reason for this being necessary is that the actual
1704	# value of TOOLDIR might be different from the value guessed
1705	# before the top level obj dir was created.
1706	#
1707	if ! ${done_rebuildmake} && \
1708	    ( [ ! -x "$make" ] || [ "$make" != "$(print_tooldir_make)" ] )
1709	then
1710		rebuildmake
1711	fi
1712
1713	# Install ${toolprefix}make if it was built.
1714	#
1715	if ${done_rebuildmake}; then
1716		${runcmd} rm -f "${TOOLDIR}/bin/${toolprefix}make"
1717		${runcmd} cp "${make}" "${TOOLDIR}/bin/${toolprefix}make" ||
1718		    bomb "Failed to install \$TOOLDIR/bin/${toolprefix}make"
1719		make="${TOOLDIR}/bin/${toolprefix}make"
1720		statusmsg "Created ${make}"
1721	fi
1722
1723	# Build a ${toolprefix}make wrapper script, usable by hand as
1724	# well as by build.sh.
1725	#
1726	if [ -z "${makewrapper}" ]; then
1727		makewrapper="${TOOLDIR}/bin/${toolprefix}make-${makewrappermachine:-${MACHINE}}"
1728		[ -z "${BUILDID}" ] || makewrapper="${makewrapper}-${BUILDID}"
1729	fi
1730
1731	${runcmd} rm -f "${makewrapper}"
1732	if [ "${runcmd}" = "echo" ]; then
1733		echo 'cat <<EOF >'${makewrapper}
1734		makewrapout=
1735	else
1736		makewrapout=">>\${makewrapper}"
1737	fi
1738
1739	case "${KSH_VERSION:-${SH_VERSION}}" in
1740	*PD\ KSH*|*MIRBSD\ KSH*)
1741		set +o braceexpand
1742		;;
1743	esac
1744
1745	eval cat <<EOF ${makewrapout}
1746#! ${HOST_SH}
1747# Set proper variables to allow easy "make" building of a NetBSD subtree.
1748# Generated from:  \$NetBSD: build.sh,v 1.276 2014/02/24 07:23:38 skrll Exp $
1749# with these arguments: ${_args}
1750#
1751
1752EOF
1753	{
1754		for f in ${makeenv}; do
1755			if eval "[ -z \"\${$f}\" -a \"\${${f}-X}\" = \"X\" ]"; then
1756				eval echo "unset ${f}"
1757			else
1758				eval echo "${f}=\'\$$(echo ${f})\'\;\ export\ ${f}"
1759			fi
1760		done
1761
1762		eval cat <<EOF
1763MAKEWRAPPERMACHINE=${makewrappermachine:-${MACHINE}}; export MAKEWRAPPERMACHINE
1764USETOOLS=yes; export USETOOLS
1765EOF
1766	} | eval sort -u "${makewrapout}"
1767	eval cat <<EOF "${makewrapout}"
1768
1769exec "\${TOOLDIR}/bin/${toolprefix}make" \${1+"\$@"}
1770EOF
1771	[ "${runcmd}" = "echo" ] && echo EOF
1772	${runcmd} chmod +x "${makewrapper}"
1773	statusmsg2 "Updated makewrapper:" "${makewrapper}"
1774}
1775
1776make_in_dir()
1777{
1778	dir="$1"
1779	op="$2"
1780	${runcmd} cd "${dir}" ||
1781	    bomb "Failed to cd to \"${dir}\""
1782	${runcmd} "${makewrapper}" ${parallel} ${op} ||
1783	    bomb "Failed to make ${op} in \"${dir}\""
1784	${runcmd} cd "${TOP}" ||
1785	    bomb "Failed to cd back to \"${TOP}\""
1786}
1787
1788buildtools()
1789{
1790	if [ "${MKOBJDIRS}" != "no" ]; then
1791		${runcmd} "${makewrapper}" ${parallel} obj-tools ||
1792		    bomb "Failed to make obj-tools"
1793	fi
1794	if [ "${MKUPDATE}" = "no" ]; then
1795		make_in_dir tools cleandir
1796	fi
1797	make_in_dir tools build_install
1798	statusmsg "Tools built to ${TOOLDIR}"
1799}
1800
1801getkernelconf()
1802{
1803	kernelconf="$1"
1804	if [ "${MKOBJDIRS}" != "no" ]; then
1805		# The correct value of KERNOBJDIR might
1806		# depend on a prior "make obj" in
1807		# ${KERNSRCDIR}/${KERNARCHDIR}/compile.
1808		#
1809		KERNSRCDIR="$(getmakevar KERNSRCDIR)"
1810		KERNARCHDIR="$(getmakevar KERNARCHDIR)"
1811		make_in_dir "${KERNSRCDIR}/${KERNARCHDIR}/compile" obj
1812	fi
1813	KERNCONFDIR="$(getmakevar KERNCONFDIR)"
1814	KERNOBJDIR="$(getmakevar KERNOBJDIR)"
1815	case "${kernelconf}" in
1816	*/*)
1817		kernelconfpath="${kernelconf}"
1818		kernelconfname="${kernelconf##*/}"
1819		;;
1820	*)
1821		kernelconfpath="${KERNCONFDIR}/${kernelconf}"
1822		kernelconfname="${kernelconf}"
1823		;;
1824	esac
1825	kernelbuildpath="${KERNOBJDIR}/${kernelconfname}"
1826}
1827
1828diskimage()
1829{
1830	ARG="$(echo $1 | tr '[:lower:]' '[:upper:]')"
1831	[ -f "${DESTDIR}/etc/mtree/set.base" ] ||
1832	    bomb "The release binaries must be built first"
1833	kerneldir="${RELEASEDIR}/${RELEASEMACHINEDIR}/binary/kernel"
1834	kernel="${kerneldir}/netbsd-${ARG}.gz"
1835	[ -f "${kernel}" ] ||
1836	    bomb "The kernel ${kernel} must be built first"
1837	make_in_dir "${NETBSDSRCDIR}/etc" "smp_${1}"
1838}
1839
1840buildkernel()
1841{
1842	if ! ${do_tools} && ! ${buildkernelwarned:-false}; then
1843		# Building tools every time we build a kernel is clearly
1844		# unnecessary.  We could try to figure out whether rebuilding
1845		# the tools is necessary this time, but it doesn't seem worth
1846		# the trouble.  Instead, we say it's the user's responsibility
1847		# to rebuild the tools if necessary.
1848		#
1849		statusmsg "Building kernel without building new tools"
1850		buildkernelwarned=true
1851	fi
1852	getkernelconf $1
1853	statusmsg2 "Building kernel:" "${kernelconf}"
1854	statusmsg2 "Build directory:" "${kernelbuildpath}"
1855	${runcmd} mkdir -p "${kernelbuildpath}" ||
1856	    bomb "Cannot mkdir: ${kernelbuildpath}"
1857	if [ "${MKUPDATE}" = "no" ]; then
1858		make_in_dir "${kernelbuildpath}" cleandir
1859	fi
1860	[ -x "${TOOLDIR}/bin/${toolprefix}config" ] \
1861	|| bomb "${TOOLDIR}/bin/${toolprefix}config does not exist. You need to \"$0 tools\" first."
1862	${runcmd} "${TOOLDIR}/bin/${toolprefix}config" -b "${kernelbuildpath}" \
1863		-s "${TOP}/sys" "${kernelconfpath}" ||
1864	    bomb "${toolprefix}config failed for ${kernelconf}"
1865	make_in_dir "${kernelbuildpath}" depend
1866	make_in_dir "${kernelbuildpath}" all
1867
1868	if [ "${runcmd}" != "echo" ]; then
1869		statusmsg "Kernels built from ${kernelconf}:"
1870		kernlist=$(awk '$1 == "config" { print $2 }' ${kernelconfpath})
1871		for kern in ${kernlist:-netbsd}; do
1872			[ -f "${kernelbuildpath}/${kern}" ] && \
1873			    echo "  ${kernelbuildpath}/${kern}"
1874		done | tee -a "${results}"
1875	fi
1876}
1877
1878releasekernel()
1879{
1880	getkernelconf $1
1881	kernelreldir="${RELEASEDIR}/${RELEASEMACHINEDIR}/binary/kernel"
1882	${runcmd} mkdir -p "${kernelreldir}"
1883	kernlist=$(awk '$1 == "config" { print $2 }' ${kernelconfpath})
1884	for kern in ${kernlist:-netbsd}; do
1885		builtkern="${kernelbuildpath}/${kern}"
1886		[ -f "${builtkern}" ] || continue
1887		releasekern="${kernelreldir}/${kern}-${kernelconfname}.gz"
1888		statusmsg2 "Kernel copy:" "${releasekern}"
1889		if [ "${runcmd}" = "echo" ]; then
1890			echo "gzip -c -9 < ${builtkern} > ${releasekern}"
1891		else
1892			gzip -c -9 < "${builtkern}" > "${releasekern}"
1893		fi
1894	done
1895}
1896
1897buildmodules()
1898{
1899	setmakeenv MKBINUTILS no
1900	if ! ${do_tools} && ! ${buildmoduleswarned:-false}; then
1901		# Building tools every time we build modules is clearly
1902		# unnecessary as well as a kernel.
1903		#
1904		statusmsg "Building modules without building new tools"
1905		buildmoduleswarned=true
1906	fi
1907
1908	statusmsg "Building kernel modules for NetBSD/${MACHINE} ${DISTRIBVER}"
1909	if [ "${MKOBJDIRS}" != "no" ]; then
1910		make_in_dir sys/modules obj
1911	fi
1912	if [ "${MKUPDATE}" = "no" ]; then
1913		make_in_dir sys/modules cleandir
1914	fi
1915	make_in_dir sys/modules dependall
1916	make_in_dir sys/modules install
1917
1918	statusmsg "Successful build of kernel modules for NetBSD/${MACHINE} ${DISTRIBVER}"
1919}
1920
1921installmodules()
1922{
1923	dir="$1"
1924	${runcmd} "${makewrapper}" INSTALLMODULESDIR="${dir}" installmodules ||
1925	    bomb "Failed to make installmodules to ${dir}"
1926	statusmsg "Successful installmodules to ${dir}"
1927}
1928
1929installworld()
1930{
1931	dir="$1"
1932	${runcmd} "${makewrapper}" INSTALLWORLDDIR="${dir}" installworld ||
1933	    bomb "Failed to make installworld to ${dir}"
1934	statusmsg "Successful installworld to ${dir}"
1935}
1936
1937# Run rump build&link tests.
1938#
1939# To make this feasible for running without having to install includes and
1940# libraries into destdir (i.e. quick), we only run ld.  This is possible
1941# since the rump kernel is a closed namespace apart from calls to rumpuser.
1942# Therefore, if ld complains only about rumpuser symbols, rump kernel
1943# linking was successful.
1944#
1945# We test that rump links with a number of component configurations.
1946# These attempt to mimic what is encountered in the full build.
1947# See list below.  The list should probably be either autogenerated
1948# or managed elsewhere; keep it here until a better idea arises.
1949#
1950# Above all, note that THIS IS NOT A SUBSTITUTE FOR A FULL BUILD.
1951#
1952
1953RUMP_LIBSETS='
1954	-lrump,
1955	-lrumpvfs -lrump,
1956	-lrumpvfs -lrumpdev -lrump,
1957	-lrumpnet -lrump,
1958	-lrumpkern_tty -lrumpvfs -lrump,
1959	-lrumpfs_tmpfs -lrumpvfs -lrump,
1960	-lrumpfs_ffs -lrumpfs_msdos -lrumpvfs -lrumpdev_disk -lrumpdev -lrump,
1961	-lrumpnet_virtif -lrumpnet_netinet -lrumpnet_net -lrumpnet -lrump,
1962	-lrumpnet_sockin -lrumpfs_smbfs -lrumpdev_netsmb
1963	    -lrumpkern_crypto -lrumpdev -lrumpnet -lrumpvfs -lrump,
1964	-lrumpnet_sockin -lrumpfs_nfs -lrumpnet -lrumpvfs -lrump,
1965	-lrumpdev_cgd -lrumpdev_raidframe -lrumpdev_disk -lrumpdev_rnd
1966	    -lrumpdev_dm -lrumpdev -lrumpvfs -lrumpkern_crypto -lrump'
1967dorump()
1968{
1969	local doclean=""
1970	local doobjs=""
1971
1972	# we cannot link libs without building csu, and that leads to lossage
1973	[ "${1}" != "rumptest" ] && bomb 'build.sh rump not yet functional. ' \
1974	    'did you mean "rumptest"?'
1975
1976	export RUMPKERN_ONLY=1
1977	# create obj and distrib dirs
1978	if [ "${MKOBJDIRS}" != "no" ]; then
1979		make_in_dir "${NETBSDSRCDIR}/etc/mtree" obj
1980		make_in_dir "${NETBSDSRCDIR}/sys/rump" obj
1981	fi
1982	${runcmd} "${makewrapper}" ${parallel} do-distrib-dirs \
1983	    || bomb 'could not create distrib-dirs'
1984
1985	[ "${MKUPDATE}" = "no" ] && doclean="cleandir"
1986	targlist="${doclean} ${doobjs} dependall install"
1987	# optimize: for test we build only static libs (3x test speedup)
1988	if [ "${1}" = "rumptest" ] ; then
1989		setmakeenv NOPIC 1
1990		setmakeenv NOPROFILE 1
1991	fi
1992	for cmd in ${targlist} ; do
1993		make_in_dir "${NETBSDSRCDIR}/sys/rump" ${cmd}
1994	done
1995
1996	# if we just wanted to build & install rump, we're done
1997	[ "${1}" != "rumptest" ] && return
1998
1999	${runcmd} cd "${NETBSDSRCDIR}/sys/rump/librump/rumpkern" \
2000	    || bomb "cd to rumpkern failed"
2001	md_quirks=`${runcmd} "${makewrapper}" -V '${_SYMQUIRK}'`
2002	# one little, two little, three little backslashes ...
2003	md_quirks="$(echo ${md_quirks} | sed 's,\\,\\\\,g'";s/'//g" )"
2004	${runcmd} cd "${TOP}" || bomb "cd to ${TOP} failed"
2005	tool_ld=`${runcmd} "${makewrapper}" -V '${LD}'`
2006
2007	local oIFS="${IFS}"
2008	IFS=","
2009	for set in ${RUMP_LIBSETS} ; do
2010		IFS="${oIFS}"
2011		${runcmd} ${tool_ld} -nostdlib -L${DESTDIR}/usr/lib	\
2012		    -static --whole-archive ${set} 2>&1 -o /tmp/rumptest.$$ | \
2013		      awk -v quirks="${md_quirks}" '
2014			/undefined reference/ &&
2015			    !/more undefined references.*follow/{
2016				if (match($NF,
2017				    "`(rumpuser_|rumpcomp_|__" quirks ")") == 0)
2018					fails[NR] = $0
2019			}
2020			/cannot find -l/{fails[NR] = $0}
2021			/cannot open output file/{fails[NR] = $0}
2022			END{
2023				for (x in fails)
2024					print fails[x]
2025				exit x!=0
2026			}'
2027		[ $? -ne 0 ] && bomb "Testlink of rump failed: ${set}"
2028	done
2029	statusmsg "Rump build&link tests successful"
2030}
2031
2032main()
2033{
2034	initdefaults
2035	_args=$@
2036	parseoptions "$@"
2037
2038	sanitycheck
2039
2040	build_start=$(date)
2041	statusmsg2 "${progname} command:" "$0 $*"
2042	statusmsg2 "${progname} started:" "${build_start}"
2043	statusmsg2 "NetBSD version:"   "${DISTRIBVER}"
2044	statusmsg2 "MACHINE:"          "${MACHINE}"
2045	statusmsg2 "MACHINE_ARCH:"     "${MACHINE_ARCH}"
2046	statusmsg2 "Build platform:"   "${uname_s} ${uname_r} ${uname_m}"
2047	statusmsg2 "HOST_SH:"          "${HOST_SH}"
2048
2049	rebuildmake
2050	validatemakeparams
2051	createmakewrapper
2052
2053	# Perform the operations.
2054	#
2055	for op in ${operations}; do
2056		case "${op}" in
2057
2058		makewrapper)
2059			# no-op
2060			;;
2061
2062		tools)
2063			buildtools
2064			;;
2065
2066		sets)
2067			statusmsg "Building sets from pre-populated ${DESTDIR}"
2068			${runcmd} "${makewrapper}" ${parallel} ${op} ||
2069			    bomb "Failed to make ${op}"
2070			setdir=${RELEASEDIR}/${RELEASEMACHINEDIR}/binary/sets
2071			statusmsg "Built sets to ${setdir}"
2072			;;
2073
2074		cleandir|obj|build|distribution|release|sourcesets|syspkgs|params)
2075			${runcmd} "${makewrapper}" ${parallel} ${op} ||
2076			    bomb "Failed to make ${op}"
2077			statusmsg "Successful make ${op}"
2078			;;
2079
2080		iso-image|iso-image-source)
2081			${runcmd} "${makewrapper}" ${parallel} \
2082			    CDEXTRA="$CDEXTRA" ${op} ||
2083			    bomb "Failed to make ${op}"
2084			statusmsg "Successful make ${op}"
2085			;;
2086
2087		live-image|install-image)
2088			# install-image and live-image require mtree spec files
2089			# built with UNPRIVED.  Assume UNPRIVED build has been
2090			# performed if METALOG file is created in DESTDIR.
2091			if [ ! -e "${DESTDIR}/METALOG" ] ; then
2092				bomb "The release binaries must have been built with -U to create images."
2093			fi
2094			${runcmd} "${makewrapper}" ${parallel} ${op} ||
2095			    bomb "Failed to make ${op}"
2096			statusmsg "Successful make ${op}"
2097			;;
2098		kernel=*)
2099			arg=${op#*=}
2100			buildkernel "${arg}"
2101			;;
2102
2103		releasekernel=*)
2104			arg=${op#*=}
2105			releasekernel "${arg}"
2106			;;
2107
2108		disk-image=*)
2109			arg=${op#*=}
2110			diskimage "${arg}"
2111			;;
2112
2113		modules)
2114			buildmodules
2115			;;
2116
2117		installmodules=*)
2118			arg=${op#*=}
2119			if [ "${arg}" = "/" ] && \
2120			    (	[ "${uname_s}" != "NetBSD" ] || \
2121				[ "${uname_m}" != "${MACHINE}" ] ); then
2122				bomb "'${op}' must != / for cross builds."
2123			fi
2124			installmodules "${arg}"
2125			;;
2126
2127		install=*)
2128			arg=${op#*=}
2129			if [ "${arg}" = "/" ] && \
2130			    (	[ "${uname_s}" != "NetBSD" ] || \
2131				[ "${uname_m}" != "${MACHINE}" ] ); then
2132				bomb "'${op}' must != / for cross builds."
2133			fi
2134			installworld "${arg}"
2135			;;
2136
2137		rump|rumptest)
2138			dorump "${op}"
2139			;;
2140
2141		*)
2142			bomb "Unknown operation \`${op}'"
2143			;;
2144
2145		esac
2146	done
2147
2148	statusmsg2 "${progname} ended:" "$(date)"
2149	if [ -s "${results}" ]; then
2150		echo "===> Summary of results:"
2151		sed -e 's/^===>//;s/^/	/' "${results}"
2152		echo "===> ."
2153	fi
2154}
2155
2156main "$@"
2157