Makefile revision 159363
1#
2# $FreeBSD: head/Makefile 159363 2006-06-07 03:33:48Z trhodes $
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, no kernel.
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# doxygen             - Build API documentation of the kernel, needs doxygen.
19# update              - Convenient way to update your source tree (cvs).
20# check-old           - Print a list of old files/directories in the system.
21# delete-old          - Delete obsolete files and directories interactively.
22# delete-old-libs     - Delete obsolete libraries interactively.
23#
24# This makefile is simple by design. The FreeBSD make automatically reads
25# the /usr/share/mk/sys.mk unless the -m argument is specified on the
26# command line. By keeping this makefile simple, it doesn't matter too
27# much how different the installed mk files are from those in the source
28# tree. This makefile executes a child make process, forcing it to use
29# the mk files from the source tree which are supposed to DTRT.
30#
31# The user-driven targets (as listed above) are implemented in Makefile.inc1.
32#
33# If you want to build your system from source be sure that /usr/obj has
34# at least 400MB of diskspace available.
35#
36# For individuals wanting to build from the sources currently on their
37# system, the simple instructions are:
38#
39# 1.  `cd /usr/src'  (or to the directory containing your source tree).
40# 2.  Define `HISTORICAL_MAKE_WORLD' variable (see README).
41# 3.  `make world'
42#
43# For individuals wanting to upgrade their sources (even if only a
44# delta of a few days):
45#
46#  1.  `cd /usr/src'       (or to the directory containing your source tree).
47#  2.  `make buildworld'
48#  3.  `make buildkernel KERNCONF=YOUR_KERNEL_HERE'     (default is GENERIC).
49#  4.  `make installkernel KERNCONF=YOUR_KERNEL_HERE'   (default is GENERIC).
50#  5.  `reboot'        (in single user mode: boot -s from the loader prompt).
51#  6.  `mergemaster -p'
52#  7.  `make installworld'
53#  8.  `make delete-old'
54#  9.  `mergemaster'
55# 10.  `reboot'
56# 11.  `make delete-old-libs' (in case no 3rd party program uses them anymore)
57#
58# See src/UPDATING `COMMON ITEMS' for more complete information.
59#
60# If TARGET_ARCH=arch (e.g. ia64, sparc64, ...) is specified you can
61# cross build world for other architectures using the buildworld target,
62# and once the world is built you can cross build a kernel using the
63# buildkernel target.
64#
65# Define the user-driven targets. These are listed here in alphabetical
66# order, but that's not important.
67#
68# Targets that begin with underscore are internal targets intended for
69# developer convenience only.  They are intentionally not documented and
70# completely subject to change without notice.
71#
72TGTS=	all all-man buildenv buildenvvars buildkernel buildworld check-old \
73	checkdpadd clean cleandepend cleandir delete-old delete-old-libs \
74	depend distribute distributeworld distrib-dirs distribution doxygen \
75	everything hierarchy install installcheck installkernel \
76	installkernel.debug reinstallkernel reinstallkernel.debug \
77	installworld kernel-toolchain libraries lint maninstall \
78	obj objlink regress rerelease showconfig tags toolchain update \
79	_worldtmp _legacy _bootstrap-tools _cleanobj _obj \
80	_build-tools _cross-tools _includes _libraries _depend \
81	build32 distribute32 install32
82TGTS+=	${SUBDIR_TARGETS}
83
84BITGTS=	files includes
85BITGTS:=${BITGTS} ${BITGTS:S/^/build/} ${BITGTS:S/^/install/}
86TGTS+=	${BITGTS}
87
88.ORDER: buildworld installworld
89.ORDER: buildworld distributeworld
90.ORDER: buildworld buildkernel
91.ORDER: buildkernel installkernel
92.ORDER: buildkernel installkernel.debug
93.ORDER: buildkernel reinstallkernel
94.ORDER: buildkernel reinstallkernel.debug
95
96PATH=	/sbin:/bin:/usr/sbin:/usr/bin
97MAKEOBJDIRPREFIX?=	/usr/obj
98_MAKEOBJDIRPREFIX!= /usr/bin/env -i PATH=${PATH} ${MAKE} \
99    ${.MAKEFLAGS:MMAKEOBJDIRPREFIX=*} __MAKE_CONF=${__MAKE_CONF} \
100    -f /dev/null -V MAKEOBJDIRPREFIX dummy
101.if !empty(_MAKEOBJDIRPREFIX)
102.error MAKEOBJDIRPREFIX can only be set in environment, not as a global\
103	(in make.conf(5)) or command-line variable.
104.endif
105MAKEPATH=	${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}
106BINMAKE= \
107	`if [ -x ${MAKEPATH}/make ]; then echo ${MAKEPATH}/make; else echo ${MAKE}; fi` \
108	-m ${.CURDIR}/share/mk
109_MAKE=	PATH=${PATH} ${BINMAKE} -f Makefile.inc1
110
111#
112# Make sure we have an up-to-date make(1). Only world and buildworld
113# should do this as those are the initial targets used for upgrades.
114# The user can define ALWAYS_CHECK_MAKE to have this check performed
115# for all targets.
116#
117.if defined(ALWAYS_CHECK_MAKE)
118${TGTS}: upgrade_checks
119.else
120buildworld: upgrade_checks
121.endif
122
123#
124# This 'cleanworld' target is not included in TGTS, because it is not a
125# recursive target.  All of the work for it is done right here.   It is
126# expected that BW_CANONICALOBJDIR == the CANONICALOBJDIR as would be
127# created by bsd.obj.mk, except that we don't want to .include that file
128# in this makefile.  
129#
130# In the following, the first 'rm' in a series will usually remove all
131# files and directories.  If it does not, then there are probably some
132# files with chflags set, so this unsets them and tries the 'rm' a
133# second time.  There are situations where this target will be cleaning
134# some directories via more than one method, but that duplication is
135# needed to correctly handle all the possible situations.
136#
137BW_CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR}
138cleanworld:
139.if ${.CURDIR} == ${.OBJDIR} || ${.CURDIR}/obj == ${.OBJDIR}
140.if exists(${BW_CANONICALOBJDIR}/)
141	-rm -rf ${BW_CANONICALOBJDIR}/*
142	chflags -R 0 ${BW_CANONICALOBJDIR}
143	rm -rf ${BW_CANONICALOBJDIR}/*
144.endif
145	#   To be safe in this case, fall back to a 'make cleandir'
146	${_+_}@cd ${.CURDIR}; ${_MAKE} cleandir
147.else
148	-rm -rf ${.OBJDIR}/*
149	chflags -R 0 ${.OBJDIR}
150	rm -rf ${.OBJDIR}/*
151.endif
152
153#
154# Handle the user-driven targets, using the source relative mk files.
155#
156
157${TGTS}:
158	${_+_}@cd ${.CURDIR}; \
159		${_MAKE} ${.TARGET}
160
161# Set a reasonable default
162.MAIN:	all
163
164STARTTIME!= LC_ALL=C date
165
166.if defined(HISTORICAL_MAKE_WORLD) || defined(DESTDIR)
167#
168# world
169#
170# Attempt to rebuild and reinstall everything. This target is not to be
171# used for upgrading an existing FreeBSD system, because the kernel is
172# not included. One can argue that this target doesn't build everything
173# then.
174#
175world: upgrade_checks
176	@echo "--------------------------------------------------------------"
177	@echo ">>> make world started on ${STARTTIME}"
178	@echo "--------------------------------------------------------------"
179.if target(pre-world)
180	@echo
181	@echo "--------------------------------------------------------------"
182	@echo ">>> Making 'pre-world' target"
183	@echo "--------------------------------------------------------------"
184	${_+_}@cd ${.CURDIR}; ${_MAKE} pre-world
185.endif
186	${_+_}@cd ${.CURDIR}; ${_MAKE} buildworld
187	${_+_}@cd ${.CURDIR}; ${_MAKE} -B installworld
188.if target(post-world)
189	@echo
190	@echo "--------------------------------------------------------------"
191	@echo ">>> Making 'post-world' target"
192	@echo "--------------------------------------------------------------"
193	${_+_}@cd ${.CURDIR}; ${_MAKE} post-world
194.endif
195	@echo
196	@echo "--------------------------------------------------------------"
197	@echo ">>> make world completed on `LC_ALL=C date`"
198	@echo "                   (started ${STARTTIME})"
199	@echo "--------------------------------------------------------------"
200.else
201world:
202	@echo "WARNING: make world will overwrite your existing FreeBSD"
203	@echo "installation without also building and installing a new"
204	@echo "kernel.  This can be dangerous.  Please read the handbook,"
205	@echo "'Rebuilding world', for how to upgrade your system."
206	@echo "Define DESTDIR to where you want to install FreeBSD,"
207	@echo "including /, to override this warning and proceed as usual."
208	@echo "You may get the historical 'make world' behavior by defining"
209	@echo "HISTORICAL_MAKE_WORLD.  You should understand the implications"
210	@echo "before doing this."
211	@echo ""
212	@echo "Bailing out now..."
213	@false
214.endif
215
216#
217# kernel
218#
219# Short hand for `make buildkernel installkernel'
220#
221kernel: buildkernel installkernel
222
223#
224# Perform a few tests to determine if the installed tools are adequate
225# for building the world.
226#
227upgrade_checks:
228	@if ! (cd ${.CURDIR}/tools/build/make_check && \
229	    PATH=${PATH} ${BINMAKE} obj >/dev/null 2>&1 && \
230	    PATH=${PATH} ${BINMAKE} >/dev/null 2>&1); \
231	then \
232	    (cd ${.CURDIR} && make make); \
233	fi
234
235#
236# Upgrade make(1) to the current version using the installed
237# headers, libraries and tools.
238#
239MMAKEENV=	MAKEOBJDIRPREFIX=${MAKEPATH} \
240		DESTDIR= \
241		INSTALL="sh ${.CURDIR}/tools/install.sh"
242MMAKE=		${MMAKEENV} make \
243		-D_UPGRADING \
244		-DNOMAN -DNO_MAN -DNOSHARED -DNO_SHARED \
245		-DNO_CPU_CFLAGS -DNO_WERROR
246
247make: .PHONY
248	@echo
249	@echo "--------------------------------------------------------------"
250	@echo ">>> Building an up-to-date make(1)"
251	@echo "--------------------------------------------------------------"
252	${_+_}@cd ${.CURDIR}/usr.bin/make; \
253		${MMAKE} obj && \
254		${MMAKE} depend && \
255		${MMAKE} all && \
256		${MMAKE} install DESTDIR=${MAKEPATH} BINDIR=
257
258#
259# universe
260#
261# Attempt to rebuild *everything* for all supported architectures,
262# with a reasonable chance of success, regardless of how old your
263# existing system is.
264#
265.if make(universe)
266universe: universe_prologue
267universe_prologue:
268	@echo "--------------------------------------------------------------"
269	@echo ">>> make universe started on ${STARTTIME}"
270	@echo "--------------------------------------------------------------"
271.for target in i386 i386:pc98 sparc64 ia64 amd64
272.for arch in ${target:C/:.*$//}
273.for mach in ${target:C/^.*://}
274KERNCONFS!=	cd ${.CURDIR}/sys/${mach}/conf && \
275		find [A-Z]*[A-Z] -type f -maxdepth 0 \
276		! -name DEFAULTS ! -name LINT
277KERNCONFS:=	${KERNCONFS:S/^NOTES$/LINT/}
278universe: universe_${mach}
279.ORDER: universe_prologue universe_${mach} universe_epilogue
280universe_${mach}:
281	@echo ">> ${mach} started on `LC_ALL=C date`"
282	-cd ${.CURDIR} && ${MAKE} ${JFLAG} buildworld \
283	    TARGET_ARCH=${arch} TARGET=${mach} \
284	    __MAKE_CONF=/dev/null \
285	    > _.${mach}.buildworld 2>&1
286	@echo ">> ${mach} buildworld completed on `LC_ALL=C date`"
287.if exists(${.CURDIR}/sys/${mach}/conf/NOTES)
288	-cd ${.CURDIR}/sys/${mach}/conf && ${MAKE} LINT \
289	    > ${.CURDIR}/_.${mach}.makeLINT 2>&1
290.endif
291.for kernel in ${KERNCONFS}
292	-cd ${.CURDIR} && ${MAKE} ${JFLAG} buildkernel \
293	    TARGET_ARCH=${arch} TARGET=${mach} \
294	    KERNCONF=${kernel} \
295	    __MAKE_CONF=/dev/null \
296	    > _.${mach}.${kernel} 2>&1
297.endfor
298	@echo ">> ${mach} completed on `LC_ALL=C date`"
299.endfor
300.endfor
301.endfor
302universe: universe_epilogue
303universe_epilogue:
304	@echo "--------------------------------------------------------------"
305	@echo ">>> make universe completed on `LC_ALL=C date`"
306	@echo "                      (started ${STARTTIME})"
307	@echo "--------------------------------------------------------------"
308.endif
309