Makefile revision 137288 
1#
2# $FreeBSD: head/Makefile 137288 2004-11-06 03:14:26Z peter $
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	build32 install32
74
75BITGTS=	files includes
76BITGTS:=${BITGTS} ${BITGTS:S/^/build/} ${BITGTS:S/^/install/}
77TGTS+=	${BITGTS}
78
79.ORDER: buildworld installworld
80.ORDER: buildworld distributeworld
81.ORDER: buildworld buildkernel
82.ORDER: buildkernel installkernel
83.ORDER: buildkernel installkernel.debug
84.ORDER: buildkernel reinstallkernel
85.ORDER: buildkernel reinstallkernel.debug
86
87PATH=	/sbin:/bin:/usr/sbin:/usr/bin
88MAKEOBJDIRPREFIX?=	/usr/obj
89_MAKEOBJDIRPREFIX!= /usr/bin/env -i \
90		PATH=${PATH} MAKEFLAGS="${.MAKEFLAGS}" ${MAKE} \
91		-f /dev/null -V MAKEOBJDIRPREFIX dummy
92.if !empty(_MAKEOBJDIRPREFIX)
93.error MAKEOBJDIRPREFIX can only be set in environment, not as a global\
94	(in /etc/make.conf) or command-line variable.
95.endif
96MAKEPATH=	${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}
97BINMAKE= \
98	`if [ -x ${MAKEPATH}/make ]; then echo ${MAKEPATH}/make; else echo ${MAKE}; fi` \
99	-m ${.CURDIR}/share/mk
100_MAKE=	PATH=${PATH} ${BINMAKE} -f Makefile.inc1
101
102#
103# Make sure we have an up-to-date make(1). Only world and buildworld
104# should do this as those are the initial targets used for upgrades.
105# The user can define ALWAYS_CHECK_MAKE to have this check performed
106# for all targets.
107#
108.if defined(ALWAYS_CHECK_MAKE)
109${TGTS}: upgrade_checks
110.else
111buildworld: upgrade_checks
112.endif
113
114#
115# This 'cleanworld' target is not included in TGTS, because it is not a
116# recursive target.  All of the work for it is done right here.   It is
117# expected that BW_CANONICALOBJDIR == the CANONICALOBJDIR as would be
118# created by bsd.obj.mk, except that we don't want to .include that file
119# in this makefile.  
120#
121# In the following, the first 'rm' in a series will usually remove all
122# files and directories.  If it does not, then there are probably some
123# files with chflags set, so this unsets them and tries the 'rm' a
124# second time.  There are situations where this target will be cleaning
125# some directories via more than one method, but that duplication is
126# needed to correctly handle all the possible situations.
127#
128BW_CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR}
129cleanworld:
130.if ${.CURDIR} == ${.OBJDIR} || ${.CURDIR}/obj == ${.OBJDIR}
131.if exists(${BW_CANONICALOBJDIR}/)
132	-rm -rf ${BW_CANONICALOBJDIR}/*
133	chflags -R 0 ${BW_CANONICALOBJDIR}
134	rm -rf ${BW_CANONICALOBJDIR}/*
135.endif
136	#   To be safe in this case, fall back to a 'make cleandir'
137	${_+_}@cd ${.CURDIR}; ${_MAKE} cleandir
138.else
139	-rm -rf ${.OBJDIR}/*
140	chflags -R 0 ${.OBJDIR}
141	rm -rf ${.OBJDIR}/*
142.endif
143
144#
145# Handle the user-driven targets, using the source relative mk files.
146#
147
148${TGTS}:
149	${_+_}@cd ${.CURDIR}; \
150		${_MAKE} ${.TARGET}
151
152# Set a reasonable default
153.MAIN:	all
154
155STARTTIME!= LC_ALL=C date
156
157.if defined(HISTORICAL_MAKE_WORLD) || defined(DESTDIR)
158#
159# world
160#
161# Attempt to rebuild and reinstall everything. This target is not to be
162# used for upgrading an existing FreeBSD system, because the kernel is
163# not included. One can argue that this target doesn't build everything
164# then.
165#
166world: upgrade_checks
167	@echo "--------------------------------------------------------------"
168	@echo ">>> make world started on ${STARTTIME}"
169	@echo "--------------------------------------------------------------"
170.if target(pre-world)
171	@echo
172	@echo "--------------------------------------------------------------"
173	@echo ">>> Making 'pre-world' target"
174	@echo "--------------------------------------------------------------"
175	${_+_}@cd ${.CURDIR}; ${_MAKE} pre-world
176.endif
177	${_+_}@cd ${.CURDIR}; ${_MAKE} buildworld
178	${_+_}@cd ${.CURDIR}; ${_MAKE} -B installworld
179.if target(post-world)
180	@echo
181	@echo "--------------------------------------------------------------"
182	@echo ">>> Making 'post-world' target"
183	@echo "--------------------------------------------------------------"
184	${_+_}@cd ${.CURDIR}; ${_MAKE} post-world
185.endif
186	@echo
187	@echo "--------------------------------------------------------------"
188	@echo ">>> make world completed on `LC_ALL=C date`"
189	@echo "                   (started ${STARTTIME})"
190	@echo "--------------------------------------------------------------"
191.else
192world:
193	@echo "WARNING: make world will overwrite your existing FreeBSD"
194	@echo "installation without also building and installing a new"
195	@echo "kernel.  This can be dangerous.  Please read the handbook,"
196	@echo "'Rebuilding world', for how to upgrade your system."
197	@echo "Define DESTDIR to where you want to install FreeBSD,"
198	@echo "including /, to override this warning and proceed as usual."
199	@echo "You may get the historical 'make world' behavior by defining"
200	@echo "HISTORICAL_MAKE_WORLD.  You should understand the implications"
201	@echo "before doing this."
202	@echo ""
203	@echo "Bailing out now..."
204	@false
205.endif
206
207#
208# kernel
209#
210# Short hand for `make buildkernel installkernel'
211#
212kernel: buildkernel installkernel
213
214#
215# Perform a few tests to determine if the installed tools are adequate
216# for building the world.
217#
218upgrade_checks:
219	@if ! (cd ${.CURDIR}/tools/regression/usr.bin/make && \
220	    PATH=${PATH} ${BINMAKE} >/dev/null 2>&1); \
221	then \
222	    (cd ${.CURDIR} && make make); \
223	fi
224
225#
226# Upgrade make(1) to the current version using the installed
227# headers, libraries and tools.
228#
229MMAKEENV=	MAKEOBJDIRPREFIX=${MAKEPATH} \
230		DESTDIR= \
231		INSTALL="sh ${.CURDIR}/tools/install.sh"
232MMAKE=		${MMAKEENV} make \
233		-D_UPGRADING \
234		-DNOMAN -DNOSHARED \
235		-DNO_CPU_CFLAGS -DNO_WERROR
236
237make: .PHONY
238	@echo
239	@echo "--------------------------------------------------------------"
240	@echo ">>> Building an up-to-date make(1)"
241	@echo "--------------------------------------------------------------"
242	${_+_}@cd ${.CURDIR}/usr.bin/make; \
243		${MMAKE} obj && \
244		${MMAKE} depend && \
245		${MMAKE} all && \
246		${MMAKE} install DESTDIR=${MAKEPATH} BINDIR=
247
248#
249# universe
250#
251# Attempt to rebuild *everything* for all supported architectures,
252# with a reasonable chance of success, regardless of how old your
253# existing system is.
254#
255universe: universe_prologue
256universe_prologue:
257	@echo "--------------------------------------------------------------"
258	@echo ">>> make universe started on ${STARTTIME}"
259	@echo "--------------------------------------------------------------"
260.for target in i386 i386:pc98 sparc64 alpha ia64 amd64
261.for arch in ${target:C/:.*$//}
262.for mach in ${target:C/^.*://}
263universe: universe_${mach}
264.ORDER: universe_prologue universe_${mach} universe_epilogue
265universe_${mach}:
266	@echo ">> ${mach} started on `LC_ALL=C date`"
267	-cd ${.CURDIR} && ${MAKE} ${JFLAG} buildworld \
268	    TARGET_ARCH=${arch} TARGET=${mach} \
269	    __MAKE_CONF=/dev/null \
270	    > _.${mach}.buildworld 2>&1
271	@echo ">> ${mach} buildworld completed on `LC_ALL=C date`"
272.if exists(${.CURDIR}/sys/${mach}/conf/NOTES)
273	-cd ${.CURDIR}/sys/${mach}/conf && ${MAKE} LINT \
274	    > ${.CURDIR}/_.${mach}.makeLINT 2>&1
275.endif
276	cd ${.CURDIR} && ${MAKE} buildkernels TARGET_ARCH=${arch} TARGET=${mach}
277	@echo ">> ${mach} completed on `LC_ALL=C date`"
278.endfor
279.endfor
280.endfor
281universe: universe_epilogue
282universe_epilogue:
283	@echo "--------------------------------------------------------------"
284	@echo ">>> make universe completed on `LC_ALL=C date`"
285	@echo "                      (started ${STARTTIME})"
286	@echo "--------------------------------------------------------------"
287
288.if make(buildkernels)
289KERNCONFS!=	cd ${.CURDIR}/sys/${TARGET}/conf && \
290		find [A-Z]*[A-Z] -type f -maxdepth 0 ! -name NOTES
291buildkernels:
292.for kernel in ${KERNCONFS}
293	-cd ${.CURDIR} && ${MAKE} ${JFLAG} buildkernel \
294	    KERNCONF=${kernel} \
295	    __MAKE_CONF=/dev/null \
296	    > _.${TARGET}.${kernel} 2>&1
297.endfor
298.endif
299