Makefile revision 42128
113685Swosch# 288930Sdwmalone# $Id: Makefile,v 1.221 1998/10/17 15:25:26 bde Exp $ 313685Swosch# 450477Speter# The user-driven targets are: 555398Sgrog# 613685Swosch# buildworld - Rebuild *everything*, including glue to help do 713685Swosch# upgrades. 8166002Sdwmalone# installworld - Install everything built by "buildworld". 9166002Sdwmalone# world - buildworld + installworld. 10166002Sdwmalone# update - Convenient way to update your source tree (cvs). 11166002Sdwmalone# most - Build user commands, no libraries or include files. 1213685Swosch# installmost - Install user commands, no libraries or include files. 1313685Swosch# aout-to-elf - Upgrade an system from a.out to elf format (see below). 1413685Swosch# aout-to-elf-build - Build everything required to upgrade a system from 1555398Sgrog# a.out to elf format (see below). 16213875Sedwin# aout-to-elf-install - Install everything built by aout-to-elf-build (see 17213875Sedwin# below). 18212035Sedwin# move-aout-libs - Move the a.out libraries into an aout sub-directory 19212035Sedwin# of each elf library sub-directory. 20212035Sedwin# 21212035Sedwin# This makefile is simple by design. The FreeBSD make automatically reads 22212035Sedwin# the /usr/share/mk/sys.mk unless the -m argument is specified on the 23212035Sedwin# command line. By keeping this makefile simple, it doesn't matter too 24212035Sedwin# much how different the installed mk files are from those in the source 25212035Sedwin# tree. This makefile executes a child make process, forcing it to use 26212035Sedwin# the mk files from the source tree which are supposed to DTRT. 27212035Sedwin# 28212035Sedwin# The user-driven targets (as listed above) are implemented in Makefile.inc0 29212035Sedwin# and the private targets are in Makefile.inc1. These are kept separate 30212035Sedwin# to help the bootstrap build from aout to elf format. 31212035Sedwin# 32212035Sedwin# For novices wanting to build from current sources, the simple instructions 33212035Sedwin# are: 34212035Sedwin# 35212035Sedwin# 1. Ensure that your /usr/obj directory has at least 260 Mb of free space. 36212035Sedwin# 2. `cd /usr/src' (or to the directory containing your source tree). 37212035Sedwin# 3. `make world' 38212035Sedwin# 39212035Sedwin# Be warned, this will update your installed system, except for configuration 40212035Sedwin# files in the /etc directory. You have to do those manually. 41212035Sedwin# 42212035Sedwin# If at first you're a little nervous about having a `make world' update 43212035Sedwin# your system, a `make buildworld' will build everything in the /usr/obj 44212035Sedwin# tree without touching your installed system. To be of any further use 45212035Sedwin# though, a `make installworld' is required. 46212035Sedwin# 47212035Sedwin# The `make world' process always follows the installed object format. 48212035Sedwin# This is set by creating /etc/objformat containing either OBJFORMAT=aout 49212035Sedwin# or OBJFORMAT=elf. If this file does not exist, the object format defaults 50212035Sedwin# to aout. This is expected to be changed to elf just prior to the release 51212035Sedwin# or 3.0. If OBJFORMAT is set as an environment variable or in /etc/make.conf, 52212035Sedwin# this overrides /etc/objformat. 53212035Sedwin# 54212035Sedwin# Unless -DNOAOUT is specified, a `make world' with OBJFORMAT=elf will 55212035Sedwin# update the legacy support for aout. This includes all libraries, ld.so 56212035Sedwin# and boot objects. This part of build should be regarded as 57212035Sedwin# deprecated and you should _not_ expect to be able to do this past the 58212035Sedwin# release of 3.1. You have exactly one major release to move entirely 59212035Sedwin# to elf. 60212035Sedwin# 61212035Sedwin# ---------------------------------------------------------------------------- 62212035Sedwin# 63212035Sedwin# Upgrading an i386 system from a.out to elf format 64212035Sedwin# 65212035Sedwin# 66212035Sedwin# The aout->elf transition build is performed by doing a `make aout-to-elf' 67212035Sedwin# or a `make aout-to-elf-build' followed by a `make aout-to-elf-install'. 68212035Sedwin# You need to have at least 320 Mb of free space for the object tree. 69212035Sedwin# 70212035Sedwin# The upgrade process checks the installed release. If this is 3.0-CURRENT, 71212035Sedwin# it is assumed that your kernel contains all the syscalls required by the 72212035Sedwin# current sources. 73212035Sedwin# 74212035Sedwin# For installed systems where `uname -r' reports something other than 75212035Sedwin# 3.0-CURRENT, the upgrade process expects to build a kernel using the 76212035Sedwin# kernel configuration file sys/i386/conf/GENERICupgrade. This file is 77212035Sedwin# defaulted to the GENERIC kernel configuration file on the assumption that 78212035Sedwin# it will be suitable for most systems. Before performing the upgrade, 79212035Sedwin# replace sys/i386/conf/GENERICupgrade with your own version if your 80212035Sedwin# hardware requires a different configuration. 81212035Sedwin# 82212035Sedwin# The upgrade procedure will stop and ask for confirmation to proceed 83212035Sedwin# several times. On each occasion, you can type Ctrl-C to abort the 84212035Sedwin# upgrade. 85212035Sedwin# 86212035Sedwin# At the end of the upgrade procedure, /etc/objformat is created or 87212035Sedwin# updated to contain OBJFORMAT=elf. From then on, you're elf by default. 88212035Sedwin# 89212035Sedwin# ---------------------------------------------------------------------------- 90212035Sedwin# 91212035Sedwin# 92212035Sedwin# Define the user-driven targets. These are listed here in alphabetical 93212035Sedwin# order, but that's not important. 94212035Sedwin# 95212035SedwinTGTS = afterdistribute all buildworld checkdpadd clean cleandepend cleandir \ 96212035Sedwin depend distribute everything hierarchy includes install installmost \ 97212035Sedwin installworld lint maninstall mk most obj objlink regress rerelease \ 98212035Sedwin tags update world 99212035Sedwin 100212035Sedwin# 101212035Sedwin# Handle the user-driven targets, using the source relative mk files. 102212035Sedwin# 103212035Sedwin${TGTS} : upgrade_checks 104212035Sedwin @cd ${.CURDIR}; \ 105212035Sedwin make -f Makefile.inc0 -m ${.CURDIR}/share/mk ${.TARGET} 106212035Sedwin 107212035Sedwin# Set a reasonable default 108212035Sedwin.MAIN: all 109212035Sedwin 110212035Sedwin# 111212035Sedwin# Perform a few tests to determine if the installed tools are adequate 112212035Sedwin# for building the world. These are for older systems (prior to 2.2.5). 113212035Sedwin# 114212035Sedwin# From 2.2.5 onwards, the installed tools will pass these upgrade tests, 115212035Sedwin# so the normal make world is capable of doing what is required to update 116212035Sedwin# the system to current. 117212035Sedwin# 118212035Sedwinupgrade_checks : 119212035Sedwin @cd ${.CURDIR}; if `make -m ${.CURDIR}/share/mk test > /dev/null 2>&1`; then ok=1; else make -f Makefile.upgrade make; fi; 120212035Sedwin 121212035Sedwin# 122212035Sedwin# A simple test target used as part of the test to see if make supports 123212035Sedwin# the -m argument. 124212035Sedwin# 125212035Sedwintest : 126212035Sedwin 127212035Sedwin# 128212035Sedwin# Define the upgrade targets. These are listed here in alphabetical 129212035Sedwin# order, but that's not important. 130212035Sedwin# 131212035SedwinUPGRADE = aout-to-elf aout-to-elf-build aout-to-elf-install \ 132212035Sedwin move-aout-libs 133212035Sedwin 134212035Sedwin# 135212035Sedwin# Handle the upgrade targets, using the source relative mk files. 136212035Sedwin# 137212035Sedwin${UPGRADE} : upgrade_checks 138212035Sedwin @cd ${.CURDIR}; \ 139212035Sedwin make -f Makefile.upgrade -m ${.CURDIR}/share/mk ${.TARGET} 140212035Sedwin