build.sh revision 1.44 
1#! /bin/sh
2#  $NetBSD: build.sh,v 1.44 2002/02/27 13:55:28 lukem Exp $
3#
4# Top level build wrapper, for a system containing no tools.
5#
6# This script should run on any POSIX-compliant shell.  For systems
7# with a strange /bin/sh, "ksh" or "bash" may be an ample alternative.
8#
9
10bomb () {
11	echo ""
12	echo "ERROR: $@"
13	echo "*** BUILD ABORTED ***"
14	exit 1
15}
16[ -d usr.bin/make ] || bomb "build.sh must be run from the top source level"
17
18TOP=`pwd`
19
20getarch () {
21	# Translate a MACHINE into a default MACHINE_ARCH.
22	case $MACHINE in
23		arm26|evbarm|hpcarm|netwinder)
24			MACHINE_ARCH=arm;;
25
26		acorn32|cats|shark)
27			MACHINE_ARCH=arm32;;
28
29		sun2)
30			MACHINE_ARCH=m68000;;
31
32		amiga|atari|cesfic|hp300|sun3|*68k)
33			MACHINE_ARCH=m68k;;
34
35		mipsco|newsmips|sgimips)
36			MACHINE_ARCH=mipseb;;
37
38		algor|arc|cobalt|hpcmips|playstation2|pmax)
39			MACHINE_ARCH=mipsel;;
40
41		pc532)
42			MACHINE_ARCH=ns32k;;
43
44		bebox|prep|sandpoint|walnut|*ppc)
45			MACHINE_ARCH=powerpc;;
46
47		evbsh3|mmeye)
48			MACHINE_ARCH=sh3eb;;
49
50		dreamcast|hpcsh)
51			MACHINE_ARCH=sh3el;;
52
53		alpha|i386|sparc|sparc64|vax|x86_64)
54			MACHINE_ARCH=$MACHINE;;
55
56		*)	bomb "unknown target MACHINE: $MACHINE";;
57	esac
58}
59
60getmakevar () {
61	$make -m ${TOP}/share/mk -s -f- _x_ <<EOF
62_x_:
63	echo \${$1}
64.include <bsd.prog.mk>
65EOF
66}
67
68# Emulate "mkdir -p" for systems that have an Old "mkdir".
69mkdirp () {
70	_d=
71	case "$1" in /*) _d=/;; esac
72
73	oifs=$IFS
74	IFS=/; set -- $@; IFS=$oifs
75
76	for _f in "$@"; do
77		if [ -n "$_f" ]; then
78			[ -d "$_d$_f" ] || $runcmd mkdir "$_d$_f" || return 1
79			_d="$_d$_f/"
80		fi
81	done
82}
83
84resolvepath () {
85	case $OPTARG in
86	/*)	;;
87	*)	OPTARG="$cwd/$OPTARG";;
88	esac
89}
90
91usage () {
92	echo "Usage:"
93	echo "$0 [-bdorUu] [-a arch] [-j njob] [-m mach] [-w wrapper]"
94	echo "   [-D dest] [-O obj] [-R release] [-T tools]"
95	echo ""
96	echo "    -a: set MACHINE_ARCH to arch (otherwise deduced from MACHINE)"
97	echo "    -b: build nbmake and nbmake wrapper script, if needed"
98	echo "    -D: set DESTDIR to dest"
99	echo "    -d: build a full distribution into DESTDIR (including etc files)"
100	echo "    -j: set NBUILDJOBS to njob"
101	echo "    -m: set MACHINE to mach (not required if NetBSD native)"
102	echo "    -n: show commands that would be executed, but do not execute them"
103	echo "    -O: set obj root directory to obj (sets a MAKEOBJDIR pattern)"
104	echo "    -o: set MKOBJDIRS=no (do not create objdirs at start of build)"
105	echo "    -R: build a release (and set RELEASEDIR to release)"
106	echo "    -r: remove contents of TOOLDIR and DESTDIR before building"
107	echo "    -T: set TOOLDIR to tools"
108	echo "    -t: build and install tools only (implies -b)"
109	echo "    -U: set UNPRIVED"
110	echo "    -u: set UPDATE"
111	echo "    -w: create nbmake script at wrapper (default TOOLDIR/bin/nbmake-MACHINE)"
112	echo ""
113	echo "Note: if -T is unset and TOOLDIR is not set in the environment,"
114	echo "      nbmake will be [re]built unconditionally."
115	exit 1
116}
117
118# Set defaults.
119MAKEFLAGS=
120buildtarget=build
121cwd=`pwd`
122do_buildsystem=true
123do_buildonlytools=false
124do_rebuildmake=false
125do_removedirs=false
126makeenv=
127makewrapper=
128opt_a=no
129opts='a:bdhj:m:nortuw:D:O:R:T:U'
130runcmd=
131
132if type getopts >/dev/null 2>&1; then
133	# Use POSIX getopts.
134	getoptcmd='getopts $opts opt && opt=-$opt'
135	optargcmd=':'
136else
137	type getopt >/dev/null 2>&1 || bomb "/bin/sh shell is too old; try ksh or bash"
138
139	# Use old-style getopt(1) (doesn't handle whitespace in args).
140	args="`getopt $opts $*`"
141	[ $? = 0 ] || usage
142	set -- $args
143
144	getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
145	optargcmd='OPTARG="$1"; shift'
146fi
147
148# Parse command line options.
149while eval $getoptcmd; do case $opt in
150	-a)	eval $optargcmd
151		MACHINE_ARCH=$OPTARG; opt_a=yes;;
152
153	-b)	do_buildsystem=false;;
154
155	-d)	buildtarget=distribution;;
156
157	-j)	eval $optargcmd
158		MAKEFLAGS="$MAKEFLAGS NBUILDJOBS=$OPTARG"; export MAKEFLAGS;;
159
160	# -m overrides MACHINE_ARCH unless "-a" is specified
161	-m)	eval $optargcmd
162		MACHINE=$OPTARG; [ "$opt_a" != "yes" ] && getarch;;
163
164	-n)	runcmd=echo;;
165
166	-o)	MKOBJDIRS=no;;
167
168	-r)	do_removedirs=true; do_rebuildmake=true;;
169
170	-t)	do_buildonlytools=true; do_buildsystem=false;;
171
172	-U)	UNPRIVED=yes; export UNPRIVED
173		makeenv="$makeenv UNPRIVED";;
174
175	-u)	UPDATE=yes; export UPDATE
176		makeenv="$makeenv UPDATE";;
177
178	-w)	eval $optargcmd; resolvepath
179		makewrapper="$OPTARG";;
180
181	-D)	eval $optargcmd; resolvepath
182		DESTDIR="$OPTARG"; export DESTDIR
183		makeenv="$makeenv DESTDIR";;
184
185	-O)	eval $optargcmd; resolvepath
186		MAKEOBJDIR="\${.CURDIR:C,^$cwd,$OPTARG,}"; export MAKEOBJDIR
187		makeobjdir=$OPTARG
188		makeenv="$makeenv MAKEOBJDIR";;
189
190	-R)	eval $optargcmd; resolvepath
191		RELEASEDIR=$OPTARG; export RELEASEDIR
192		makeenv="$makeenv RELEASEDIR"
193		buildtarget=release;;
194
195	-T)	eval $optargcmd; resolvepath
196		TOOLDIR="$OPTARG"; export TOOLDIR;;
197
198	--)		break;;
199	-'?'|-h)	usage;;
200esac; done
201
202# Set up MACHINE*.  On a NetBSD host, these are allowed to be unset.
203if [ -z "$MACHINE" ]; then
204	if [ "`uname -s 2>/dev/null`" != "NetBSD" ]; then
205		echo "MACHINE must be set, or -m must be used, for cross builds."
206		echo ""; usage
207	fi
208	MACHINE=`uname -m`
209fi
210[ -n "$MACHINE_ARCH" ] || getarch
211
212# Set up default make(1) environment.
213makeenv="$makeenv TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
214MAKEFLAGS="-m $cwd/share/mk $MAKEFLAGS MKOBJDIRS=${MKOBJDIRS-yes}"
215export MAKEFLAGS MACHINE MACHINE_ARCH
216
217# Test make source file timestamps against installed nbmake binary,
218# if TOOLDIR is pre-set.
219make=${TOOLDIR-nonexistent}/bin/nbmake
220if [ -x $make ]; then
221	for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
222		if [ $f -nt $make ]; then
223			do_rebuildmake=true; break
224		fi
225	done
226else
227	do_rebuildmake=true
228fi
229
230# Build bootstrap nbmake if needed.
231if $do_rebuildmake; then
232	$runcmd echo "===> Bootstrapping nbmake"
233	tmpdir=${TMPDIR-/tmp}/nbbuild$$
234
235	$runcmd mkdir $tmpdir || bomb "cannot mkdir: $tmpdir"
236	trap "cd /; rm -r -f $tmpdir" 0
237	trap "exit 1" 1 2 3 15
238	$runcmd cd $tmpdir
239
240	$runcmd env CC="${HOST_CC-cc}" CPPFLAGS="${HOST_CPPFLAGS}" CFLAGS="${HOST_CFLAGS--O}" LDFLAGS="${HOST_LDFLAGS}" \
241		$cwd/tools/make/configure || bomb "configure of nbmake failed"
242	$runcmd sh buildmake.sh || bomb "build of nbmake failed"
243
244	make=$tmpdir/nbmake
245	$runcmd cd $cwd
246	$runcmd rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
247fi
248
249USE_NEW_TOOLCHAIN=`getmakevar USE_NEW_TOOLCHAIN`
250if [ "${USE_NEW_TOOLCHAIN}" = "" ]; then
251	echo "ERROR: build.sh (new toolchain) is not yet enabled for"
252	echo
253	echo "MACHINE: ${MACHINE}"
254	echo "MACHINE_ARCH: ${MACHINE_ARCH}"
255	echo
256	echo "All builds for this platform should be done via a traditional make"
257	echo
258	echo "If you wish to test using the new toolchain set"
259	echo
260	echo "USE_NEW_TOOLCHAIN=yes"
261	echo
262	echo "in either the environment or mk.conf and rerun"
263	echo
264	echo "$0 $*"
265	exit 1
266fi
267
268# If TOOLDIR isn't already set, make objdirs in "tools" in case the
269# default setting from <bsd.own.mk> is used.
270if [ -z "$TOOLDIR" ] && [ "$MKOBJDIRS" != "no" ]; then
271	$runcmd cd tools
272	$runcmd $make -m ${TOP}/share/mk obj NOSUBDIR= || exit 1
273	$runcmd cd ..
274fi
275
276#
277# If setting -O to root an obj dir make sure the base directory is made
278# before continuing as bsd.own.mk will need this to pick up _SRC_TOP_OBJ_
279#
280if [ "$MKOBJDIRS" != "no" ] && [ ! -z "$makeobjdir" ]; then
281	$runcmd mkdirp $makeobjdir
282fi
283
284# Find DESTDIR and TOOLDIR.
285if [ "$runcmd" = "echo" ]; then
286	# shown symbolically with -n because these may come from mk.conf
287	DESTDIR='$DESTDIR'
288	TOOLDIR='$TOOLDIR'
289else
290	DESTDIR=`getmakevar DESTDIR`; echo "===> DESTDIR path: $DESTDIR"
291	TOOLDIR=`getmakevar TOOLDIR`; echo "===> TOOLDIR path: $TOOLDIR"
292	export DESTDIR TOOLDIR
293fi
294
295# Check validity of TOOLDIR and DESTDIR.
296if [ -z "$TOOLDIR" ] || [ "$TOOLDIR" = "/" ]; then
297	bomb "TOOLDIR '$TOOLDIR' invalid"
298fi
299removedirs="$TOOLDIR"
300
301if [ -z "$DESTDIR" ] || [ "$DESTDIR" = "/" ]; then
302	if $do_buildsystem && \
303	   ([ "$buildtarget" != "build" ] || \
304	    [ "`uname -s 2>/dev/null`" != "NetBSD" ] || \
305	    [ "`uname -m`" != "$MACHINE" ]); then
306		bomb "DESTDIR must be set to a non-root path for cross builds or -d or -R."
307	elif $do_buildsystem; then
308		echo "===> WARNING: Building to /."
309		echo "===> If your kernel is not up to date, this may cause the system to break!"
310	fi
311else
312	removedirs="$removedirs $DESTDIR"
313fi
314
315# Remove the target directories.
316if $do_removedirs; then
317	for f in $removedirs; do
318		echo "===> Removing $f"
319		$runcmd rm -r -f $f
320	done
321fi
322
323# Recreate $TOOLDIR.
324mkdirp $TOOLDIR/bin || bomb "mkdir of $TOOLDIR/bin failed"
325
326# Install nbmake if it was built.
327if $do_rebuildmake; then
328	$runcmd rm -f $TOOLDIR/bin/nbmake
329	$runcmd cp $make $TOOLDIR/bin/nbmake
330	$runcmd rm -r -f $tmpdir
331	trap 0 1 2 3 15
332fi
333
334# Build a nbmake wrapper script, usable by hand as well as by build.sh.
335if [ -z "$makewrapper" ]; then
336	makewrapper=$TOOLDIR/bin/nbmake-$MACHINE
337fi
338
339$runcmd rm -f $makewrapper
340if [ "$runcmd" = "echo" ]; then
341	echo 'cat <<EOF >'$makewrapper
342	makewrapout=
343else
344	makewrapout=">>$makewrapper"
345fi
346
347eval cat <<EOF $makewrapout
348#! /bin/sh
349# Set proper variables to allow easy "make" building of a NetBSD subtree.
350# Generated from:  \$NetBSD: build.sh,v 1.44 2002/02/27 13:55:28 lukem Exp $
351#
352
353EOF
354for f in $makeenv; do
355	eval echo "$f=\'\$`echo $f`\'\;\ export\ $f" $makewrapout
356done
357eval echo "USETOOLS=yes\; export USETOOLS" $makewrapout
358
359eval cat <<EOF $makewrapout
360
361exec \$TOOLDIR/bin/nbmake \${1+"\$@"}
362EOF
363[ "$runcmd" = "echo" ] && echo EOF
364$runcmd chmod +x $makewrapper
365
366if $do_buildsystem; then
367	${runcmd-exec} $makewrapper $buildtarget
368elif $do_buildonlytools; then
369	if [ "$MKOBJDIRS" != "no" ]; then
370		$runcmd $makewrapper obj-tools || exit 1
371	fi
372	$runcmd cd tools
373	if [ "$UPDATE" = "" ]; then
374		${runcmd-exec} $makewrapper cleandir dependall install
375	else
376		${runcmd-exec} $makewrapper dependall install
377	fi
378fi
379