Makefile revision 97769
1#
2# $FreeBSD: head/Makefile 97769 2002-06-03 14:49:34Z ru $
3#
4# The user-driven targets are:
5#
6# buildworld          - Rebuild *everything*, including glue to help do
7#                       upgrades.
8# installworld        - Install everything built by "buildworld".
9# world               - buildworld + installworld.
10# buildkernel         - Rebuild the kernel and the kernel-modules.
11# installkernel       - Install the kernel and the kernel-modules.
12# reinstallkernel     - Reinstall the kernel and the kernel-modules.
13# kernel              - buildkernel + installkernel.
14# update              - Convenient way to update your source tree (cvs).
15# upgrade             - Upgrade a.out (2.2.x/3.0) system to the new ELF way
16# most                - Build user commands, no libraries or include files.
17# installmost         - Install user commands, no libraries or include files.
18# aout-to-elf         - Upgrade an system from a.out to elf format (see below).
19# aout-to-elf-build   - Build everything required to upgrade a system from
20#                       a.out to elf format (see below).
21# aout-to-elf-install - Install everything built by aout-to-elf-build (see
22#                       below).
23# move-aout-libs      - Move the a.out libraries into an aout sub-directory
24#                       of each elf library sub-directory.
25#
26# This makefile is simple by design. The FreeBSD make automatically reads
27# the /usr/share/mk/sys.mk unless the -m argument is specified on the 
28# command line. By keeping this makefile simple, it doesn't matter too
29# much how different the installed mk files are from those in the source
30# tree. This makefile executes a child make process, forcing it to use
31# the mk files from the source tree which are supposed to DTRT.
32#
33# The user-driven targets (as listed above) are implemented in Makefile.inc1.
34#
35# If you want to build your system from source be sure that /usr/obj has
36# at least 400MB of diskspace available.
37#
38# For individuals wanting to build from the sources currently on their
39# system, the simple instructions are:
40#
41# 1.  `cd /usr/src'  (or to the directory containing your source tree).
42# 2.  `make world'
43#
44# For individuals wanting to upgrade their sources (even if only a
45# delta of a few days):
46#
47# 1.  `cd /usr/src'       (or to the directory containing your source tree).
48# 2.  `make buildworld'
49# 3.  `make buildkernel KERNCONF=YOUR_KERNEL_HERE'     (default is GENERIC).
50# 4.  `make installkernel KERNCONF=YOUR_KERNEL_HERE'   (default is GENERIC).
51# 5.  `reboot'        (in single user mode: boot -s from the loader prompt).
52# 6.  `mergemaster -p'
53# 7.  `make installworld'
54# 8.  `mergemaster'
55# 9.  `reboot'
56#
57# See src/UPDATING `COMMON ITEMS' for more complete information.
58#
59# If -DWANT_AOUT is specified, a `make world' with OBJFORMAT=elf will
60# update the legacy support for aout. This includes all libraries, ld.so
61# and boot objects. This part of build should be regarded as
62# deprecated and you should _not_ expect to be able to do this past the
63# release of 4.0. You have exactly one major release to move entirely
64# to elf.
65#
66# ----------------------------------------------------------------------------
67#
68#           Upgrading an i386 system from a.out to elf format
69#
70#
71# The aout->elf transition build is performed by doing a `make upgrade' (or
72# `make aout-to-elf') or in two steps by a `make aout-to-elf-build' followed
73# by a `make aout-to-elf-install', depending on user preference.
74# You need to have at least 320 Mb of free space for the object tree.
75#
76# The upgrade process checks the installed release. If this is 3.0-CURRENT,
77# it is assumed that your kernel contains all the syscalls required by the
78# current sources.
79#
80# The upgrade procedure will stop and ask for confirmation to proceed
81# several times. On each occasion, you can type Ctrl-C to abort the
82# upgrade.  Optionally, you can also start it with NOCONFIRM=yes and skip
83# the confirmation steps.
84#
85# At the end of the upgrade procedure, /etc/objformat is created or
86# updated to contain OBJFORMAT=elf. From then on, you're elf by default.
87#
88# ----------------------------------------------------------------------------
89#
90#
91# Define the user-driven targets. These are listed here in alphabetical
92# order, but that's not important.
93#
94TGTS=	all all-man buildkernel buildworld checkdpadd clean \
95	cleandepend cleandir depend distribute distributeworld everything \
96	hierarchy install installcheck installkernel \
97	reinstallkernel installmost installworld libraries lint maninstall \
98	mk most obj objlink regress rerelease tags update
99
100BITGTS=	files includes
101BITGTS:=${BITGTS} ${BITGTS:S/^/build/} ${BITGTS:S/^/install/}
102
103.ORDER: buildworld installworld
104.ORDER: buildworld distributeworld
105.ORDER: buildkernel installkernel
106.ORDER: buildkernel reinstallkernel
107
108PATH=	/sbin:/bin:/usr/sbin:/usr/bin
109MAKE=	PATH=${PATH} make -m ${.CURDIR}/share/mk -f Makefile.inc1
110
111#
112# Handle the user-driven targets, using the source relative mk files.
113#
114${TGTS} ${BITGTS}: upgrade_checks
115	@cd ${.CURDIR}; \
116		${MAKE} ${.TARGET}
117
118# Set a reasonable default
119.MAIN:	all
120
121STARTTIME!= LC_ALL=C date
122#
123# world
124#
125# Attempt to rebuild and reinstall *everything*, with reasonable chance of
126# success, regardless of how old your existing system is.
127#
128world: upgrade_checks
129	@echo "--------------------------------------------------------------"
130	@echo ">>> ${OBJFORMAT} make world started on ${STARTTIME}"
131	@echo "--------------------------------------------------------------"
132.if target(pre-world)
133	@echo
134	@echo "--------------------------------------------------------------"
135	@echo ">>> Making 'pre-world' target"
136	@echo "--------------------------------------------------------------"
137	@cd ${.CURDIR}; ${MAKE} pre-world
138.endif
139	@cd ${.CURDIR}; ${MAKE} buildworld
140	@cd ${.CURDIR}; ${MAKE} -B installworld
141.if target(post-world)
142	@echo
143	@echo "--------------------------------------------------------------"
144	@echo ">>> Making 'post-world' target"
145	@echo "--------------------------------------------------------------"
146	@cd ${.CURDIR}; ${MAKE} post-world
147.endif
148	@echo
149	@echo "--------------------------------------------------------------"
150	@printf ">>> ${OBJFORMAT} make world completed on `LC_ALL=C date`\n                       (started ${STARTTIME})\n"
151	@echo "--------------------------------------------------------------"
152
153#
154# kernel
155#
156# Short hand for `make buildkernel installkernel'
157#
158kernel: buildkernel installkernel
159
160#
161# Perform a few tests to determine if the installed tools are adequate
162# for building the world. These are for older systems (prior to 2.2.5).
163#
164# From 2.2.5 onwards, the installed tools will pass these upgrade tests,
165# so the normal make world is capable of doing what is required to update
166# the system to current.
167#
168upgrade_checks:
169	@cd ${.CURDIR}; \
170		if ! make -m ${.CURDIR}/share/mk test > /dev/null 2>&1; then \
171			make make; \
172		fi
173	@cd ${.CURDIR}; \
174		if make -V .CURDIR:C/.// 2>&1 >/dev/null | \
175		    grep -q "Unknown modifier 'C'"; then \
176			make make; \
177		fi
178
179#
180# A simple test target used as part of the test to see if make supports
181# the -m argument.
182#
183test:
184
185#
186# Upgrade the installed make to the current version using the installed
187# headers, libraries and build tools. This is required on installed versions
188# prior to 2.2.5 in which the installed make doesn't support the -m argument.
189#
190make:
191	@echo
192	@echo "--------------------------------------------------------------"
193	@echo " Upgrading the installed make"
194	@echo "--------------------------------------------------------------"
195	@cd ${.CURDIR}/usr.bin/make; \
196		make obj && make depend && make all && make install
197
198#
199# Define the upgrade targets. These are listed here in alphabetical
200# order, but that's not important.
201#
202UPGRADE=	aout-to-elf aout-to-elf-build aout-to-elf-install \
203		move-aout-libs
204
205#
206# Handle the upgrade targets, using the source relative mk files.
207#
208
209upgrade:	aout-to-elf
210
211${UPGRADE} : upgrade_checks
212	@cd ${.CURDIR}; \
213		${MAKE} -f Makefile.upgrade -m ${.CURDIR}/share/mk ${.TARGET}
214