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[dragonfly.git] / Makefile
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1#
2# $FreeBSD: src/Makefile,v 1.234.2.19 2003/04/16 09:59:40 ru Exp $
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# If TARGET_ARCH=arch (e.g. alpha) is specified you can
67# cross build world for other architectures using the buildworld target,
68# and once the world is built you can cross build a kernel using the
69# buildkernel target.
70#
71# ----------------------------------------------------------------------------
72#
73# Upgrading an i386 system from a.out to elf format
74#
75#
76# The aout->elf transition build is performed by doing a `make upgrade' (or
77# `make aout-to-elf') or in two steps by a `make aout-to-elf-build' followed
78# by a `make aout-to-elf-install', depending on user preference.
79# You need to have at least 320 Mb of free space for the object tree.
80#
81# The upgrade process checks the installed release. If this is 3.0-CURRENT,
82# it is assumed that your kernel contains all the syscalls required by the
83# current sources.
84#
85# The upgrade procedure will stop and ask for confirmation to proceed
86# several times. On each occasion, you can type Ctrl-C to abort the
87# upgrade. Optionally, you can also start it with NOCONFIRM=yes and skip
88# the confirmation steps.
89#
90# At the end of the upgrade procedure, /etc/objformat is created or
91# updated to contain OBJFORMAT=elf. From then on, you're elf by default.
92#
93# ----------------------------------------------------------------------------
94#
95#
96# Define the user-driven targets. These are listed here in alphabetical
97# order, but that's not important.
98#
99TGTS= all all-man buildkernel buildworld checkdpadd clean \
100 cleandepend cleandir depend distribute distributeworld everything \
101 hierarchy install installcheck installkernel \
102 reinstallkernel installmost installworld libraries lint maninstall \
103 mk most obj objlink regress rerelease tags update
104
105BITGTS= files includes
106BITGTS:=${BITGTS} ${BITGTS:S/^/build/} ${BITGTS:S/^/install/}
107
108.ORDER: buildworld installworld
109.ORDER: buildworld distributeworld
110.ORDER: buildworld buildkernel
111.ORDER: buildkernel installkernel
112.ORDER: buildkernel reinstallkernel
113
114PATH= /sbin:/bin:/usr/sbin:/usr/bin
115MAKE= PATH=${PATH} make -m ${.CURDIR}/share/mk -f Makefile.inc1
116
117#
118# Handle the user-driven targets, using the source relative mk files.
119#
120${TGTS} ${BITGTS}: upgrade_checks
121 @cd ${.CURDIR}; \
122 ${MAKE} ${.TARGET}
123
124# Set a reasonable default
125.MAIN: all
126
127STARTTIME!= LC_ALL=C date
128#
129# world
130#
131# Attempt to rebuild and reinstall *everything*, with reasonable chance of
132# success, regardless of how old your existing system is.
133#
134world: upgrade_checks
135 @echo "--------------------------------------------------------------"
136 @echo ">>> ${OBJFORMAT} make world started on ${STARTTIME}"
137 @echo "--------------------------------------------------------------"
138.if target(pre-world)
139 @echo
140 @echo "--------------------------------------------------------------"
141 @echo ">>> Making 'pre-world' target"
142 @echo "--------------------------------------------------------------"
143 @cd ${.CURDIR}; ${MAKE} pre-world
144.endif
145 @cd ${.CURDIR}; ${MAKE} buildworld
146 @cd ${.CURDIR}; ${MAKE} -B installworld
147.if target(post-world)
148 @echo
149 @echo "--------------------------------------------------------------"
150 @echo ">>> Making 'post-world' target"
151 @echo "--------------------------------------------------------------"
152 @cd ${.CURDIR}; ${MAKE} post-world
153.endif
154 @echo
155 @echo "--------------------------------------------------------------"
156 @printf ">>> ${OBJFORMAT} make world completed on `LC_ALL=C date`\n (started ${STARTTIME})\n"
157 @echo "--------------------------------------------------------------"
158
159#
160# kernel
161#
162# Short hand for `make buildkernel installkernel'
163#
164kernel: buildkernel installkernel
165
166#
167# Perform a few tests to determine if the installed tools are adequate
168# for building the world. These are for older systems (prior to 2.2.5).
169#
170# From 2.2.5 onwards, the installed tools will pass these upgrade tests,
171# so the normal make world is capable of doing what is required to update
172# the system to current.
173#
174upgrade_checks:
175 @cd ${.CURDIR}; \
176 if ! make -m ${.CURDIR}/share/mk -Dnotdef test >/dev/null 2>&1; then \
177 make make; \
178 fi
179 @cd ${.CURDIR}; \
180 if make -V .CURDIR:C/.// 2>&1 >/dev/null | \
181 grep -q "Unknown modifier 'C'"; then \
182 make make; \
183 fi
184
185#
186# A simple test target used as part of the test to see if make supports
187# the -m argument. Also test that make will only evaluate a conditional
188# as far as is necessary to determine its value.
189#
190test:
191.if defined(notdef)
192.undef notdef
193.if defined(notdef) && ${notdef:U}
194.endif
195.endif
196
197#
198# Upgrade the installed make to the current version using the installed
199# headers, libraries and build tools. This is required on installed versions
200# prior to 2.2.5 in which the installed make doesn't support the -m argument.
201#
202make:
203 @echo
204 @echo "--------------------------------------------------------------"
205 @echo " Upgrading the installed make"
206 @echo "--------------------------------------------------------------"
207 @cd ${.CURDIR}/usr.bin/make; \
208 make obj && make depend && make all && make install
209
210#
211# Define the upgrade targets. These are listed here in alphabetical
212# order, but that's not important.
213#
214UPGRADE= aout-to-elf aout-to-elf-build aout-to-elf-install \
215 move-aout-libs
216
217#
218# Handle the upgrade targets, using the source relative mk files.
219#
220
221upgrade: aout-to-elf
222
223${UPGRADE} : upgrade_checks
224 @cd ${.CURDIR}; \
225 ${MAKE} -f Makefile.upgrade -m ${.CURDIR}/share/mk ${.TARGET}