build.sh revision 1.37 
1#! /bin/sh
2#  $NetBSD: build.sh,v 1.37 2001/12/19 20:59:07 tv 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 $MACHINE in
23		arm26|dnard|evbarm|hpcarm|netwinder)
24			MACHINE_ARCH=arm;;
25
26		acorn32|arm32|cats)
27			MACHINE_ARCH=arm32;;
28
29		sun2)
30			MACHINE_ARCH=m68000;;
31
32		amiga|atari|cesfic|hp300|sun3|*68k)
33			MACHINE_ARCH=m68k;;
34
35		mipsco|newsmips|sgimips)
36			MACHINE_ARCH=mipseb;;
37
38		algor|arc|cobalt|hpcmips|playstation2|pmax)
39			MACHINE_ARCH=mipsel;;
40
41		pc532)
42			MACHINE_ARCH=ns32k;;
43
44		bebox|prep|sandpoint|walnut|*ppc)
45			MACHINE_ARCH=powerpc;;
46
47		evbsh3|mmeye)
48			MACHINE_ARCH=sh3eb;;
49
50		dreamcast|hpcsh)
51			MACHINE_ARCH=sh3el;;
52
53		alpha|i386|sparc|sparc64|vax|x86_64)
54			MACHINE_ARCH=$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 [-bdoru] [-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 UPDATE"
110	echo "    -w: create nbmake script at wrapper (default TOOLDIR/bin/nbmake-MACHINE)"
111	echo ""
112	echo "Note: if -T is unset and TOOLDIR is not set in the environment,"
113	echo "      nbmake will be [re]built unconditionally."
114	exit 1
115}
116
117# Set defaults.
118MAKEFLAGS=
119buildtarget=build
120cwd=`pwd`
121do_buildsystem=true
122do_buildonlytools=false
123do_rebuildmake=false
124do_removedirs=false
125makeenv=
126makewrapper=
127opt_a=no
128opts='a:bdhj:m:nortuw:D:O:R:T:'
129runcmd=
130
131if type getopts >/dev/null 2>&1; then
132	# Use POSIX getopts.
133	getoptcmd='getopts $opts opt && opt=-$opt'
134	optargcmd=':'
135else
136	type getopt >/dev/null 2>&1 || bomb "/bin/sh shell is too old; try ksh or bash"
137
138	# Use old-style getopt(1) (doesn't handle whitespace in args).
139	args="`getopt $opts $*`"
140	[ $? = 0 ] || usage
141	set -- $args
142
143	getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
144	optargcmd='OPTARG="$1"; shift'
145fi
146
147# Parse command line options.
148while eval $getoptcmd; do case $opt in
149	-a)	eval $optargcmd
150		MACHINE_ARCH=$OPTARG; opt_a=yes;;
151
152	-b)	do_buildsystem=false;;
153
154	-d)	buildtarget=distribution;;
155
156	-j)	eval $optargcmd
157		MAKEFLAGS="$MAKEFLAGS NBUILDJOBS=$OPTARG"; export MAKEFLAGS;;
158
159	# -m overrides MACHINE_ARCH unless "-a" is specified
160	-m)	eval $optargcmd
161		MACHINE=$OPTARG; [ "$opt_a" != "yes" ] && getarch;;
162
163	-n)	runcmd=echo;;
164
165	-o)	MKOBJDIRS=no;;
166
167	-r)	do_removedirs=true; do_rebuildmake=true;;
168
169	-t)	do_buildonlytools=true; do_buildsystem=false;;
170
171	-u)	UPDATE=yes; export UPDATE
172		makeenv="$makeenv UPDATE";;
173
174	-w)	eval $optargcmd; resolvepath
175		makewrapper="$OPTARG";;
176
177	-D)	eval $optargcmd; resolvepath
178		DESTDIR="$OPTARG"; export DESTDIR
179		makeenv="$makeenv DESTDIR";;
180
181	-O)	eval $optargcmd; resolvepath
182		MAKEOBJDIR="\${.CURDIR:C,^$cwd,$OPTARG,}"; export MAKEOBJDIR
183		makeobjdir=$OPTARG
184		makeenv="$makeenv MAKEOBJDIR";;
185
186	-R)	eval $optargcmd; resolvepath
187		RELEASEDIR=$OPTARG; export RELEASEDIR
188		makeenv="$makeenv RELEASEDIR"
189		buildtarget=release;;
190
191	-T)	eval $optargcmd; resolvepath
192		TOOLDIR="$OPTARG"; export TOOLDIR;;
193
194	--)		break;;
195	-'?'|-h)	usage;;
196esac; done
197
198# Set up MACHINE*.  On a NetBSD host, these are allowed to be unset.
199if [ -z "$MACHINE" ]; then
200	if [ "`uname -s 2>/dev/null`" != "NetBSD" ]; then
201		echo "MACHINE must be set, or -m must be used, for cross builds."
202		echo ""; usage
203	fi
204	MACHINE=`uname -m`
205fi
206[ -n "$MACHINE_ARCH" ] || getarch
207
208# Set up default make(1) environment.
209makeenv="$makeenv TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
210MAKEFLAGS="-m $cwd/share/mk $MAKEFLAGS MKOBJDIRS=${MKOBJDIRS-yes}"
211export MAKEFLAGS MACHINE MACHINE_ARCH
212
213# Test make source file timestamps against installed nbmake binary,
214# if TOOLDIR is pre-set.
215make=${TOOLDIR-nonexistent}/bin/nbmake
216if [ -x $make ]; then
217	for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
218		if [ $f -nt $make ]; then
219			do_rebuildmake=true; break
220		fi
221	done
222else
223	do_rebuildmake=true
224fi
225
226# Build bootstrap nbmake if needed.
227if $do_rebuildmake; then
228	$runcmd echo "===> Bootstrapping nbmake"
229	tmpdir=${TMPDIR-/tmp}/nbbuild$$
230
231	$runcmd mkdir $tmpdir || bomb "cannot mkdir: $tmpdir"
232	trap "rm -r -f $tmpdir" 0
233	trap "exit 1" 1 2 3 15
234	$runcmd cd $tmpdir
235
236	$runcmd ${HOST_CC-cc} ${HOST_CFLAGS} -DMAKE_BOOTSTRAP \
237		-o nbmake -I$cwd/usr.bin/make \
238		$cwd/usr.bin/make/*.c $cwd/usr.bin/make/lst.lib/*.c \
239		${HOST_LDFLAGS} || bomb "build of nbmake failed"
240
241	make=$tmpdir/nbmake
242	$runcmd cd $cwd
243	$runcmd rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
244fi
245
246USE_NEW_TOOLCHAIN=`getmakevar USE_NEW_TOOLCHAIN`
247if [ "${USE_NEW_TOOLCHAIN}" = "" ]; then
248	echo "ERROR: build.sh (new toolchain) is not yet enabled for"
249	echo
250	echo "MACHINE: ${MACHINE}"
251	echo "MACHINE_ARCH: ${MACHINE_ARCH}"
252	echo
253	echo "All builds for this platform should be done via a traditional make"
254	echo
255	echo "If you wish to test using the new toolchain set"
256	echo
257	echo "USE_NEW_TOOLCHAIN=yes"
258	echo
259	echo "in either the environment or mk.conf and rerun"
260	echo
261	echo "$0 $*"
262	exit 1
263fi
264
265# If TOOLDIR isn't already set, make objdirs in "tools" in case the
266# default setting from <bsd.own.mk> is used.
267if [ -z "$TOOLDIR" ] && [ "$MKOBJDIRS" != "no" ]; then
268	$runcmd cd tools
269	$runcmd $make -m ${TOP}/share/mk obj NOSUBDIR= || exit 1
270	$runcmd cd ..
271fi
272
273#
274# If setting -O to root an obj dir make sure the base directory is made
275# before continuing as bsd.own.mk will need this to pick up _SRC_TOP_OBJ_
276#
277if [ "$MKOBJDIRS" != "no" ] && [ ! -z "$makeobjdir" ]; then
278	$runcmd mkdirp $makeobjdir
279fi
280
281# Find DESTDIR and TOOLDIR.
282if [ "$runcmd" = "echo" ]; then
283	# shown symbolically with -n because these may come from mk.conf
284	DESTDIR='$DESTDIR'
285	TOOLDIR='$TOOLDIR'
286else
287	DESTDIR=`getmakevar DESTDIR`; echo "===> DESTDIR path: $DESTDIR"
288	TOOLDIR=`getmakevar TOOLDIR`; echo "===> TOOLDIR path: $TOOLDIR"
289	export DESTDIR TOOLDIR
290fi
291
292# Check validity of TOOLDIR and DESTDIR.
293if [ -z "$TOOLDIR" ] || [ "$TOOLDIR" = "/" ]; then
294	bomb "TOOLDIR '$TOOLDIR' invalid"
295fi
296removedirs="$TOOLDIR"
297
298if [ -z "$DESTDIR" ] || [ "$DESTDIR" = "/" ]; then
299	if $do_buildsystem && \
300	   ([ "$buildtarget" != "build" ] || \
301	    [ "`uname -s 2>/dev/null`" != "NetBSD" ] || \
302	    [ "`uname -m`" != "$MACHINE" ]); then
303		bomb "DESTDIR must be set to a non-root path for cross builds or -d or -R."
304	elif $do_buildsystem; then
305		echo "===> WARNING: Building to /."
306		echo "===> If your kernel is not up to date, this may cause the system to break!"
307	fi
308else
309	removedirs="$removedirs $DESTDIR"
310fi
311
312# Remove the target directories.
313if $do_removedirs; then
314	for f in $removedirs; do
315		echo "===> Removing $f"
316		$runcmd rm -r -f $f
317	done
318fi
319
320# Recreate $TOOLDIR.
321mkdirp $TOOLDIR/bin || bomb "mkdir of $TOOLDIR/bin failed"
322
323# Install nbmake if it was built.
324if $do_rebuildmake; then
325	$runcmd rm -f $TOOLDIR/bin/nbmake
326	$runcmd cp $make $TOOLDIR/bin/nbmake
327	$runcmd rm -r -f $tmpdir
328	trap 0 1 2 3 15
329fi
330
331# Build a nbmake wrapper script, usable by hand as well as by build.sh.
332if [ -z "$makewrapper" ]; then
333	makewrapper=$TOOLDIR/bin/nbmake-$MACHINE
334fi
335
336$runcmd rm -f $makewrapper
337if [ "$runcmd" = "echo" ]; then
338	echo 'cat <<EOF >'$makewrapper
339	makewrapout=
340else
341	makewrapout=">>$makewrapper"
342fi
343
344eval cat <<EOF $makewrapout
345#! /bin/sh
346# Set proper variables to allow easy "make" building of a NetBSD subtree.
347# Generated from:  \$NetBSD: build.sh,v 1.37 2001/12/19 20:59:07 tv Exp $
348#
349
350EOF
351for f in $makeenv; do
352	eval echo "$f=\'\$`echo $f`\'\;\ export\ $f" $makewrapout
353done
354eval echo "USETOOLS=yes\; export USETOOLS" $makewrapout
355
356eval cat <<EOF $makewrapout
357
358exec \$TOOLDIR/bin/nbmake \${1+"\$@"}
359EOF
360[ "$runcmd" = "echo" ] && echo EOF
361$runcmd chmod +x $makewrapper
362
363if $do_buildsystem; then
364	${runcmd-exec} $makewrapper $buildtarget
365elif $do_buildonlytools; then
366	if [ "$MKOBJDIRS" != "no" ]; then
367		$runcmd $makewrapper obj-tools || exit 1
368	fi
369	$runcmd cd tools
370	if [ "$UPDATE" = "" ]; then
371		${runcmd-exec} $makewrapper cleandir dependall install
372	else
373		${runcmd-exec} $makewrapper dependall install
374	fi
375fi
376