Makefile revision 136671 
1#
2# $FreeBSD: head/Makefile 136671 2004-10-18 17:47:31Z ru $
3#
4# The user-driven targets are:
5#
6# universe            - *Really* build *everything* (buildworld and
7#                       all kernels on all architectures).
8# buildworld          - Rebuild *everything*, including glue to help do
9#                       upgrades.
10# installworld        - Install everything built by "buildworld".
11# world               - buildworld + installworld.
12# buildkernel         - Rebuild the kernel and the kernel-modules.
13# installkernel       - Install the kernel and the kernel-modules.
14# installkernel.debug
15# reinstallkernel     - Reinstall the kernel and the kernel-modules.
16# reinstallkernel.debug
17# kernel              - buildkernel + installkernel.
18# update              - Convenient way to update your source tree (cvs).
19#
20# This makefile is simple by design. The FreeBSD make automatically reads
21# the /usr/share/mk/sys.mk unless the -m argument is specified on the
22# command line. By keeping this makefile simple, it doesn't matter too
23# much how different the installed mk files are from those in the source
24# tree. This makefile executes a child make process, forcing it to use
25# the mk files from the source tree which are supposed to DTRT.
26#
27# The user-driven targets (as listed above) are implemented in Makefile.inc1.
28#
29# If you want to build your system from source be sure that /usr/obj has
30# at least 400MB of diskspace available.
31#
32# For individuals wanting to build from the sources currently on their
33# system, the simple instructions are:
34#
35# 1.  `cd /usr/src'  (or to the directory containing your source tree).
36# 2.  `make world'
37#
38# For individuals wanting to upgrade their sources (even if only a
39# delta of a few days):
40#
41# 1.  `cd /usr/src'       (or to the directory containing your source tree).
42# 2.  `make buildworld'
43# 3.  `make buildkernel KERNCONF=YOUR_KERNEL_HERE'     (default is GENERIC).
44# 4.  `make installkernel KERNCONF=YOUR_KERNEL_HERE'   (default is GENERIC).
45# 5.  `reboot'        (in single user mode: boot -s from the loader prompt).
46# 6.  `mergemaster -p'
47# 7.  `make installworld'
48# 8.  `mergemaster'
49# 9.  `reboot'
50#
51# See src/UPDATING `COMMON ITEMS' for more complete information.
52#
53# If TARGET_ARCH=arch (e.g. ia64, sparc64, ...) is specified you can
54# cross build world for other architectures using the buildworld target,
55# and once the world is built you can cross build a kernel using the
56# buildkernel target.
57#
58# Define the user-driven targets. These are listed here in alphabetical
59# order, but that's not important.
60#
61# Targets that begin with underscore are internal targets intended for
62# developer convenience only.  They are intentionally not documented and
63# completely subject to change without notice.
64#
65TGTS=	all all-man buildkernel buildworld checkdpadd clean \
66	cleandepend cleandir depend distribute distributeworld everything \
67	hierarchy install installcheck installkernel installkernel.debug\
68	reinstallkernel reinstallkernel.debug installworld \
69	kernel-toolchain libraries lint maninstall \
70	obj objlink regress rerelease tags toolchain update \
71	_worldtmp _legacy _bootstrap-tools _cleanobj _obj \
72	_build-tools _cross-tools _includes _libraries _depend
73
74BITGTS=	files includes
75BITGTS:=${BITGTS} ${BITGTS:S/^/build/} ${BITGTS:S/^/install/}
76TGTS+=	${BITGTS}
77
78.ORDER: buildworld installworld
79.ORDER: buildworld distributeworld
80.ORDER: buildworld buildkernel
81.ORDER: buildkernel installkernel
82.ORDER: buildkernel installkernel.debug
83.ORDER: buildkernel reinstallkernel
84.ORDER: buildkernel reinstallkernel.debug
85
86PATH=	/sbin:/bin:/usr/sbin:/usr/bin
87MAKEOBJDIRPREFIX?=	/usr/obj
88_MAKEOBJDIRPREFIX!= /usr/bin/env -i \
89		PATH=${PATH} MAKEFLAGS="${.MAKEFLAGS}" ${MAKE} \
90		-f /dev/null -V MAKEOBJDIRPREFIX dummy
91.if !empty(_MAKEOBJDIRPREFIX)
92.error MAKEOBJDIRPREFIX can only be set in environment, not as a global\
93	(in /etc/make.conf) or command-line variable.
94.endif
95MAKEPATH=	${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}
96BINMAKE= \
97	`if [ -x ${MAKEPATH}/make ]; then echo ${MAKEPATH}/make; else echo ${MAKE}; fi` \
98	-m ${.CURDIR}/share/mk
99_MAKE=	PATH=${PATH} ${BINMAKE} -f Makefile.inc1
100
101#
102# Make sure we have an up-to-date make(1). Only world and buildworld
103# should do this as those are the initial targets used for upgrades.
104# The user can define ALWAYS_CHECK_MAKE to have this check performed
105# for all targets.
106#
107.if defined(ALWAYS_CHECK_MAKE)
108${TGTS}: upgrade_checks
109.else
110buildworld: upgrade_checks
111.endif
112
113#
114# This 'cleanworld' target is not included in TGTS, because it is not a
115# recursive target.  All of the work for it is done right here.   It is
116# expected that BW_CANONICALOBJDIR == the CANONICALOBJDIR as would be
117# created by bsd.obj.mk, except that we don't want to .include that file
118# in this makefile.  
119#
120# In the following, the first 'rm' in a series will usually remove all
121# files and directories.  If it does not, then there are probably some
122# files with chflags set, so this unsets them and tries the 'rm' a
123# second time.  There are situations where this target will be cleaning
124# some directories via more than one method, but that duplication is
125# needed to correctly handle all the possible situations.
126#
127BW_CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR}
128cleanworld:
129.if ${.CURDIR} == ${.OBJDIR} || ${.CURDIR}/obj == ${.OBJDIR}
130.if exists(${BW_CANONICALOBJDIR}/)
131	-rm -rf ${BW_CANONICALOBJDIR}/*
132	chflags -R 0 ${BW_CANONICALOBJDIR}
133	rm -rf ${BW_CANONICALOBJDIR}/*
134.endif
135	#   To be safe in this case, fall back to a 'make cleandir'
136	${_+_}@cd ${.CURDIR}; ${_MAKE} cleandir
137.else
138	-rm -rf ${.OBJDIR}/*
139	chflags -R 0 ${.OBJDIR}
140	rm -rf ${.OBJDIR}/*
141.endif
142
143#
144# Handle the user-driven targets, using the source relative mk files.
145#
146
147${TGTS}:
148	${_+_}@cd ${.CURDIR}; \
149		${_MAKE} ${.TARGET}
150
151# Set a reasonable default
152.MAIN:	all
153
154STARTTIME!= LC_ALL=C date
155
156.if defined(HISTORICAL_MAKE_WORLD) || defined(DESTDIR)
157#
158# world
159#
160# Attempt to rebuild and reinstall everything. This target is not to be
161# used for upgrading an existing FreeBSD system, because the kernel is
162# not included. One can argue that this target doesn't build everything
163# then.
164#
165world: upgrade_checks
166	@echo "--------------------------------------------------------------"
167	@echo ">>> make world started on ${STARTTIME}"
168	@echo "--------------------------------------------------------------"
169.if target(pre-world)
170	@echo
171	@echo "--------------------------------------------------------------"
172	@echo ">>> Making 'pre-world' target"
173	@echo "--------------------------------------------------------------"
174	${_+_}@cd ${.CURDIR}; ${_MAKE} pre-world
175.endif
176	${_+_}@cd ${.CURDIR}; ${_MAKE} buildworld
177	${_+_}@cd ${.CURDIR}; ${_MAKE} -B installworld
178.if target(post-world)
179	@echo
180	@echo "--------------------------------------------------------------"
181	@echo ">>> Making 'post-world' target"
182	@echo "--------------------------------------------------------------"
183	${_+_}@cd ${.CURDIR}; ${_MAKE} post-world
184.endif
185	@echo
186	@echo "--------------------------------------------------------------"
187	@echo ">>> make world completed on `LC_ALL=C date`"
188	@echo "                   (started ${STARTTIME})"
189	@echo "--------------------------------------------------------------"
190.else
191world:
192	@echo "WARNING: make world will overwrite your existing FreeBSD"
193	@echo "installation without also building and installing a new"
194	@echo "kernel.  This can be dangerous.  Please read the handbook,"
195	@echo "'Rebuilding world', for how to upgrade your system."
196	@echo "Define DESTDIR to where you want to install FreeBSD,"
197	@echo "including /, to override this warning and proceed as usual."
198	@echo "You may get the historical 'make world' behavior by defining"
199	@echo "HISTORICAL_MAKE_WORLD.  You should understand the implications"
200	@echo "before doing this."
201	@echo ""
202	@echo "Bailing out now..."
203	@false
204.endif
205
206#
207# kernel
208#
209# Short hand for `make buildkernel installkernel'
210#
211kernel: buildkernel installkernel
212
213#
214# Perform a few tests to determine if the installed tools are adequate
215# for building the world.
216#
217upgrade_checks:
218	@if ! (cd ${.CURDIR}/tools/regression/usr.bin/make && \
219	    PATH=${PATH} ${BINMAKE} >/dev/null 2>&1); \
220	then \
221	    (cd ${.CURDIR} && make make); \
222	fi
223
224#
225# Upgrade make(1) to the current version using the installed
226# headers, libraries and tools.
227#
228MMAKEENV=	MAKEOBJDIRPREFIX=${MAKEPATH} \
229		DESTDIR= \
230		INSTALL="sh ${.CURDIR}/tools/install.sh"
231MMAKE=		${MMAKEENV} make \
232		-D_UPGRADING \
233		-DNOMAN -DNOSHARED \
234		-DNO_CPU_CFLAGS -DNO_WERROR
235
236make: .PHONY
237	@echo
238	@echo "--------------------------------------------------------------"
239	@echo ">>> Building an up-to-date make(1)"
240	@echo "--------------------------------------------------------------"
241	${_+_}@cd ${.CURDIR}/usr.bin/make; \
242		${MMAKE} obj && \
243		${MMAKE} depend && \
244		${MMAKE} all && \
245		${MMAKE} install DESTDIR=${MAKEPATH} BINDIR=
246
247#
248# universe
249#
250# Attempt to rebuild *everything* for all supported architectures,
251# with a reasonable chance of success, regardless of how old your
252# existing system is.
253#
254universe: universe_prologue
255universe_prologue:
256	@echo "--------------------------------------------------------------"
257	@echo ">>> make universe started on ${STARTTIME}"
258	@echo "--------------------------------------------------------------"
259.for target in i386 i386:pc98 sparc64 alpha ia64 amd64
260.for arch in ${target:C/:.*$//}
261.for mach in ${target:C/^.*://}
262universe: universe_${mach}
263.ORDER: universe_prologue universe_${mach} universe_epilogue
264universe_${mach}:
265	@echo ">> ${mach} started on `LC_ALL=C date`"
266	-cd ${.CURDIR} && ${MAKE} ${JFLAG} buildworld \
267	    TARGET_ARCH=${arch} TARGET=${mach} \
268	    __MAKE_CONF=/dev/null \
269	    > _.${mach}.buildworld 2>&1
270	@echo ">> ${mach} buildworld completed on `LC_ALL=C date`"
271.if exists(${.CURDIR}/sys/${mach}/conf/NOTES)
272	-cd ${.CURDIR}/sys/${mach}/conf && ${MAKE} LINT \
273	    > ${.CURDIR}/_.${mach}.makeLINT 2>&1
274.endif
275	cd ${.CURDIR} && ${MAKE} buildkernels TARGET_ARCH=${arch} TARGET=${mach}
276	@echo ">> ${mach} completed on `LC_ALL=C date`"
277.endfor
278.endfor
279.endfor
280universe: universe_epilogue
281universe_epilogue:
282	@echo "--------------------------------------------------------------"
283	@echo ">>> make universe completed on `LC_ALL=C date`"
284	@echo "                      (started ${STARTTIME})"
285	@echo "--------------------------------------------------------------"
286
287.if make(buildkernels)
288KERNCONFS!=	cd ${.CURDIR}/sys/${TARGET}/conf && \
289		find [A-Z]*[A-Z] -type f -maxdepth 0 ! -name NOTES
290buildkernels:
291.for kernel in ${KERNCONFS}
292	-cd ${.CURDIR} && ${MAKE} ${JFLAG} buildkernel \
293	    KERNCONF=${kernel} \
294	    __MAKE_CONF=/dev/null \
295	    > _.${TARGET}.${kernel} 2>&1
296.endfor
297.endif
298