Makefile revision 50477
1125699Spjd# 2163872Spjd# $Id: Makefile,v 1.226 1999/03/29 10:59:52 obrien Exp $ 3125699Spjd# 4125699Spjd# The user-driven targets are: 5125699Spjd# 6125699Spjd# buildworld - Rebuild *everything*, including glue to help do 7125699Spjd# upgrades. 8125699Spjd# installworld - Install everything built by "buildworld". 9125699Spjd# world - buildworld + installworld. 10125699Spjd# update - Convenient way to update your source tree (cvs). 11125699Spjd# upgrade - Upgrade a.out (2.2.x/3.0) system to the new ELF way 12125699Spjd# most - Build user commands, no libraries or include files. 13125699Spjd# installmost - Install user commands, no libraries or include files. 14125699Spjd# aout-to-elf - Upgrade an system from a.out to elf format (see below). 15125699Spjd# aout-to-elf-build - Build everything required to upgrade a system from 16125699Spjd# a.out to elf format (see below). 17125699Spjd# aout-to-elf-install - Install everything built by aout-to-elf-build (see 18125699Spjd# below). 19125699Spjd# move-aout-libs - Move the a.out libraries into an aout sub-directory 20125699Spjd# of each elf library sub-directory. 21125699Spjd# 22125699Spjd# This makefile is simple by design. The FreeBSD make automatically reads 23125699Spjd# the /usr/share/mk/sys.mk unless the -m argument is specified on the 24125699Spjd# command line. By keeping this makefile simple, it doesn't matter too 25125699Spjd# much how different the installed mk files are from those in the source 26125699Spjd# tree. This makefile executes a child make process, forcing it to use 27292201Sbrueffer# the mk files from the source tree which are supposed to DTRT. 28131689Sru# 29125699Spjd# The user-driven targets (as listed above) are implemented in Makefile.inc0 30125699Spjd# and the private targets are in Makefile.inc1. These are kept separate 31125699Spjd# to help the bootstrap build from aout to elf format. 32125699Spjd# 33125714Spjd# For novices wanting to build from current sources, the simple instructions 34125714Spjd# are: 35129381Sle# 36125699Spjd# 1. Ensure that your /usr/obj directory has at least 260 Mb of free space. 37125699Spjd# 2. `cd /usr/src' (or to the directory containing your source tree). 38125699Spjd# 3. `make world' 39125699Spjd# 40125699Spjd# Be warned, this will update your installed system, except for configuration 41125699Spjd# files in the /etc directory and for the kernel. You have to do those manually. 42163872Spjd# 43163872Spjd# If at first you're a little nervous about having a `make world' update 44125699Spjd# your system, a `make buildworld' will build everything in the /usr/obj 45163872Spjd# tree without touching your installed system. To be of any further use 46163872Spjd# though, a `make installworld' is required. 47125699Spjd# 48125699Spjd# The `make world' process always follows the installed object format. 49125714Spjd# This is set by creating /etc/objformat containing either OBJFORMAT=aout 50125714Spjd# or OBJFORMAT=elf. If this file does not exist, the object format defaults 51125699Spjd# to aout. This is expected to be changed to elf just prior to the release 52129381Sle# or 3.0. If OBJFORMAT is set as an environment variable or in /etc/make.conf, 53131689Sru# this overrides /etc/objformat. 54129381Sle# 55129381Sle# If -DWANT_AOUT is specified, a `make world' with OBJFORMAT=elf will 56125699Spjd# update the legacy support for aout. This includes all libraries, ld.so 57125699Spjd# and boot objects. This part of build should be regarded as 58129381Sle# deprecated and you should _not_ expect to be able to do this past the 59125699Spjd# release of 3.1. You have exactly one major release to move entirely 60131689Sru# to elf. 61125699Spjd# 62129381Sle# ---------------------------------------------------------------------------- 63125699Spjd# 64129381Sle# Upgrading an i386 system from a.out to elf format 65125699Spjd# 66129381Sle# 67125699Spjd# The aout->elf transition build is performed by doing a `make upgrade' (or 68125699Spjd# `make aout-to-elf') or in two steps by a `make aout-to-elf-build' followed 69125699Spjd# by a `make aout-to-elf-install', depending on user preference. 70125699Spjd# You need to have at least 320 Mb of free space for the object tree. 71125699Spjd# 72125699Spjd# The upgrade process checks the installed release. If this is 3.0-CURRENT, 73129387Sle# it is assumed that your kernel contains all the syscalls required by the 74125699Spjd# current sources. 75125699Spjd# 76125699Spjd# The upgrade procedure will stop and ask for confirmation to proceed 77125699Spjd# several times. On each occasion, you can type Ctrl-C to abort the 78163870Spjd# upgrade. Optionally, you can also start it with NOCONFIRM=yes and skip 79163873Spjd# the confirmation steps. 80125699Spjd# 81125699Spjd# At the end of the upgrade procedure, /etc/objformat is created or 82125699Spjd# updated to contain OBJFORMAT=elf. From then on, you're elf by default. 83133142Spjd# 84125699Spjd# ---------------------------------------------------------------------------- 85125699Spjd# 86129381Sle# 87129381Sle# Define the user-driven targets. These are listed here in alphabetical 88125699Spjd# order, but that's not important. 89125699Spjd# 90125699SpjdTGTS = afterdistribute all buildworld checkdpadd clean cleandepend cleandir \ 91133142Spjd depend distribute everything hierarchy includes install installmost \ 92133142Spjd installworld lint maninstall mk most obj objlink regress rerelease \ 93133142Spjd tags update world 94133142Spjd 95133142Spjd# 96133142Spjd# Handle the user-driven targets, using the source relative mk files. 97133142Spjd# 98133142Spjd${TGTS} : upgrade_checks 99125699Spjd @cd ${.CURDIR}; \ 100131689Sru ${MAKE} -f Makefile.inc0 -m ${.CURDIR}/share/mk ${.TARGET} 101131689Sru 102131689Sru# Set a reasonable default 103125699Spjd.MAIN: all 104129381Sle 105125699Spjd# 106133142Spjd# Perform a few tests to determine if the installed tools are adequate 107125699Spjd# for building the world. These are for older systems (prior to 2.2.5). 108133142Spjd# 109125699Spjd# From 2.2.5 onwards, the installed tools will pass these upgrade tests, 110133142Spjd# so the normal make world is capable of doing what is required to update 111125699Spjd# the system to current. 112133142Spjd# 113125699Spjdupgrade_checks : 114131689Sru @cd ${.CURDIR}; if `make -m ${.CURDIR}/share/mk test > /dev/null 2>&1`; then ok=1; else ${MAKE} -f Makefile.upgrade make; fi; 115131689Sru 116131689Sru# 117125699Spjd# A simple test target used as part of the test to see if make supports 118125699Spjd# the -m argument. 119125699Spjd# 120131689Srutest : 121125699Spjd 122131689Sru# 123125699Spjd# Define the upgrade targets. These are listed here in alphabetical 124125699Spjd# order, but that's not important. 125125699Spjd# 126125699SpjdUPGRADE = aout-to-elf aout-to-elf-build aout-to-elf-install \ 127125699Spjd move-aout-libs 128125699Spjd 129131689Sru# 130131689Sru# Handle the upgrade targets, using the source relative mk files. 131131689Sru# 132125699Spjd 133131689Sruupgrade: aout-to-elf 134131689Sru 135131689Sru${UPGRADE} : upgrade_checks 136125699Spjd @cd ${.CURDIR}; \ 137131689Sru ${MAKE} -f Makefile.upgrade -m ${.CURDIR}/share/mk ${.TARGET} 138131689Sru