Makefile revision 51361
1243791Sdim# 2243791Sdim# $FreeBSD: head/Makefile 51361 1999-09-18 08:27:55Z jb $ 3243791Sdim# 4243791Sdim# The user-driven targets are: 5243791Sdim# 6243791Sdim# buildworld - Rebuild *everything*, including glue to help do 7243791Sdim# upgrades. 8243791Sdim# installworld - Install everything built by "buildworld". 9243791Sdim# world - buildworld + installworld. 10243791Sdim# update - Convenient way to update your source tree (cvs). 11243791Sdim# upgrade - Upgrade a.out (2.2.x/3.0) system to the new ELF way 12243791Sdim# most - Build user commands, no libraries or include files. 13243791Sdim# installmost - Install user commands, no libraries or include files. 14243791Sdim# aout-to-elf - Upgrade an system from a.out to elf format (see below). 15252723Sdim# aout-to-elf-build - Build everything required to upgrade a system from 16243791Sdim# a.out to elf format (see below). 17252723Sdim# aout-to-elf-install - Install everything built by aout-to-elf-build (see 18243791Sdim# below). 19243791Sdim# move-aout-libs - Move the a.out libraries into an aout sub-directory 20252723Sdim# of each elf library sub-directory. 21243791Sdim# 22243791Sdim# This makefile is simple by design. The FreeBSD make automatically reads 23243791Sdim# the /usr/share/mk/sys.mk unless the -m argument is specified on the 24243791Sdim# command line. By keeping this makefile simple, it doesn't matter too 25243791Sdim# much how different the installed mk files are from those in the source 26243791Sdim# tree. This makefile executes a child make process, forcing it to use 27243791Sdim# the mk files from the source tree which are supposed to DTRT. 28243791Sdim# 29243791Sdim# The user-driven targets (as listed above) are implemented in Makefile.inc0 30243791Sdim# and the private targets are in Makefile.inc1. These are kept separate 31243791Sdim# to help the bootstrap build from aout to elf format. 32243791Sdim# 33243791Sdim# For novices wanting to build from current sources, the simple instructions 34243791Sdim# are: 35243791Sdim# 36243791Sdim# 1. Ensure that your /usr/obj directory has at least 260 Mb of free space. 37243791Sdim# 2. `cd /usr/src' (or to the directory containing your source tree). 38243791Sdim# 3. `make world' 39243791Sdim# 40243791Sdim# Be warned, this will update your installed system, except for configuration 41243791Sdim# files in the /etc directory and for the kernel. You have to do those manually. 42243791Sdim# 43243791Sdim# If at first you're a little nervous about having a `make world' update 44243791Sdim# your system, a `make buildworld' will build everything in the /usr/obj 45243791Sdim# tree without touching your installed system. To be of any further use 46243791Sdim# though, a `make installworld' is required. 47243791Sdim# 48243791Sdim# If -DWANT_AOUT is specified, a `make world' with OBJFORMAT=elf will 49243791Sdim# update the legacy support for aout. This includes all libraries, ld.so 50243791Sdim# and boot objects. This part of build should be regarded as 51243791Sdim# deprecated and you should _not_ expect to be able to do this past the 52243791Sdim# release of 4.0. You have exactly one major release to move entirely 53243791Sdim# to elf. 54243791Sdim# 55243791Sdim# ---------------------------------------------------------------------------- 56243791Sdim# 57243791Sdim# Upgrading an i386 system from a.out to elf format 58243791Sdim# 59243791Sdim# 60243791Sdim# The aout->elf transition build is performed by doing a `make upgrade' (or 61243791Sdim# `make aout-to-elf') or in two steps by a `make aout-to-elf-build' followed 62243791Sdim# by a `make aout-to-elf-install', depending on user preference. 63243791Sdim# You need to have at least 320 Mb of free space for the object tree. 64243791Sdim# 65243791Sdim# The upgrade process checks the installed release. If this is 3.0-CURRENT, 66243791Sdim# it is assumed that your kernel contains all the syscalls required by the 67243791Sdim# current sources. 68243791Sdim# 69243791Sdim# The upgrade procedure will stop and ask for confirmation to proceed 70243791Sdim# several times. On each occasion, you can type Ctrl-C to abort the 71243791Sdim# upgrade. Optionally, you can also start it with NOCONFIRM=yes and skip 72243791Sdim# the confirmation steps. 73243791Sdim# 74243791Sdim# At the end of the upgrade procedure, /etc/objformat is created or 75243791Sdim# updated to contain OBJFORMAT=elf. From then on, you're elf by default. 76243791Sdim# 77243791Sdim# ---------------------------------------------------------------------------- 78243791Sdim# 79243791Sdim# 80243791Sdim# Define the user-driven targets. These are listed here in alphabetical 81243791Sdim# order, but that's not important. 82243791Sdim# 83243791SdimTGTS = afterdistribute all buildworld checkdpadd clean cleandepend cleandir \ 84243791Sdim depend distribute everything hierarchy includes install installmost \ 85243791Sdim installworld lint maninstall mk most obj objlink regress rerelease \ 86243791Sdim tags update world 87243791Sdim 88243791Sdim# 89243791Sdim# Handle the user-driven targets, using the source relative mk files. 90243791Sdim# 91243791Sdim${TGTS} : upgrade_checks 92243791Sdim @cd ${.CURDIR}; \ 93243791Sdim ${MAKE} -f Makefile.inc0 -m ${.CURDIR}/share/mk ${.TARGET} 94243791Sdim 95243791Sdim# Set a reasonable default 96243791Sdim.MAIN: all 97243791Sdim 98243791Sdim# 99243791Sdim# Perform a few tests to determine if the installed tools are adequate 100243791Sdim# for building the world. These are for older systems (prior to 2.2.5). 101243791Sdim# 102243791Sdim# From 2.2.5 onwards, the installed tools will pass these upgrade tests, 103243791Sdim# so the normal make world is capable of doing what is required to update 104243791Sdim# the system to current. 105243791Sdim# 106252723Sdimupgrade_checks : 107243791Sdim @cd ${.CURDIR}; if `make -m ${.CURDIR}/share/mk test > /dev/null 2>&1`; then ok=1; else ${MAKE} -f Makefile.upgrade make; fi; 108243791Sdim 109243791Sdim# 110243791Sdim# A simple test target used as part of the test to see if make supports 111243791Sdim# the -m argument. 112243791Sdim# 113243791Sdimtest : 114243791Sdim 115243791Sdim# 116243791Sdim# Define the upgrade targets. These are listed here in alphabetical 117243791Sdim# order, but that's not important. 118243791Sdim# 119243791SdimUPGRADE = aout-to-elf aout-to-elf-build aout-to-elf-install \ 120243791Sdim move-aout-libs 121243791Sdim 122243791Sdim# 123243791Sdim# Handle the upgrade targets, using the source relative mk files. 124243791Sdim# 125243791Sdim 126243791Sdimupgrade: aout-to-elf 127243791Sdim 128243791Sdim${UPGRADE} : upgrade_checks 129243791Sdim @cd ${.CURDIR}; \ 130243791Sdim ${MAKE} -f Makefile.upgrade -m ${.CURDIR}/share/mk ${.TARGET} 131243791Sdim