freebsd-skq/Makefile.upgrade
John Birrell 11fb97daa7 E-day build system changes.
- Moved most of the guts of Makefile to Makefile.inc1 to become the
  backend for the build system.
- The new Makefile doesn't suffer from problems including the wrong
  sys.mk because it doesn't use anything in there or bsd.own.mk. So,
  from now on, the proper build command is just `make world' (or
  buildworld).
- The intermediate makefiles called Makefile.inc0 and Makefile.upgrade
  fiddle with the OBJFORMAT and MAKEOBJDIRPREFIX variables so that
  both aout and elf object trees can coexist. Makefile.upgrade contains
  the aout->elf transition build.
- A cross build environment is now very close to reality. Specifying
  TOOLDIR, setting OBJFORMAT and MAKEOBJDIRPREFIX allow that.

See the comments in Makefile for more info.
1998-08-31 01:08:08 +00:00

231 lines
9.4 KiB
Makefile

#
# $Id$
#
# This makefile contains rules for preforming upgrades that are outside
# the scope of the normal build world process.
#
#
# Build things relative to the user's preferred object directory,
# defaulting to /usr/obj if not defined.
#
MAKEOBJDIRPREFIX?=/usr/obj
#
# The installed operating system release gives us the hint as to whether
# we need to build a kernel too.
#
INSTALLEDVERSION!=uname -r
#
# Upgrade the installed make to the current version using the installed
# headers, libraries and build tools. This is required on installed versions
# prior to 2.2.5 in which the installed make doesn't support the -m argument.
#
make :
@echo
@echo "--------------------------------------------------------------"
@echo " Upgrading the installed make"
@echo "--------------------------------------------------------------"
@cd ${.CURDIR}/usr.bin/make; \
make obj && make depend && make all && make install
#
# Upgrade from aout to elf, doing an aout build first to ensure that there
# are up-to-date tools before building the initial elf world. The aout
# tools just built into the object directory tree and executed from there
# during the elf build. Then install the aout tools, build an aout kernel
# with them (in case the installed kernel is an older version), then
# install the elf world.
#
aout-to-elf aout-to-elf-install : \
${MAKEOBJDIRPREFIX}/do_aout_buildworld \
${MAKEOBJDIRPREFIX}/do_elf_buildworld \
${MAKEOBJDIRPREFIX}/do_aout_installworld \
${MAKEOBJDIRPREFIX}/do_aout_kernel \
${MAKEOBJDIRPREFIX}/do_elf_installworld \
${MAKEOBJDIRPREFIX}/do_set_objformat \
${MAKEOBJDIRPREFIX}/do_install_kernel_reboot
#
# Just do the build parts of the transition build.
#
aout-to-elf-build : \
${MAKEOBJDIRPREFIX}/do_aout_buildworld \
${MAKEOBJDIRPREFIX}/do_elf_buildworld
#
# The installed system may not have tools capable of building an elf
# aware world, so a complete aout buildworld is required to get a known
# set of tools.
#
${MAKEOBJDIRPREFIX}/do_aout_buildworld :
@echo
@echo "--------------------------------------------------------------"
@echo " Doing an aout buildworld to get an up-to-date set of tools"
@echo "--------------------------------------------------------------"
@cd ${.CURDIR}; MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/aout \
OBJFORMAT=aout \
make -f Makefile.inc1 -m ${.CURDIR}/share/mk buildworld
@touch ${MAKEOBJDIRPREFIX}/do_aout_buildworld
#
# Temporary path for initial elf build.
#
AOUTTMPPATH= ${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp/sbin:${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp/bin:${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp/usr/sbin:${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp/usr/bin:${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp/usr/games
#
# Use the aout tools from the aout buildworld to do an elf buildworld.
#
${MAKEOBJDIRPREFIX}/do_elf_buildworld :
@echo
@echo "--------------------------------------------------------------"
@echo " Doing an elf buildworld using the aout tools in the aout"
@echo " obj tree."
@echo "--------------------------------------------------------------"
@cd ${.CURDIR}; MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/elf \
PATH=${AOUTTMPPATH} OBJFORMAT=elf NOTOOLS=1 \
TOOLROOT=${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp \
make -f Makefile.inc1 -m ${.CURDIR}/share/mk buildworld
@touch ${MAKEOBJDIRPREFIX}/do_elf_buildworld
#
# Before installing the aout world, allow for the possibility that the
# world about to be installed has some different syscalls to the installed
# kernel which will make shutting the system down problematic. We set aside
# copies of certain programs which match the running kernel.
#
# Install the aout world so that anything that isn't replaced by the
# elf world will be updated.
#
${MAKEOBJDIRPREFIX}/do_aout_installworld :
@echo
@echo "--------------------------------------------------------------"
@echo " You are about to update the installed system (or the system"
@echo " that your DESTDIR points to). You can type Ctrl-C to abort"
@echo " now or press return to start the first phase of the update."
@echo "--------------------------------------------------------------"
@/bin/sh -c "read -p \"Return to continue or Ctrl-C to abort: \" _e"
.if ${INSTALLEDVERSION} != "3.0-CURRENT"
@echo
@echo "--------------------------------------------------------------"
@echo " Saving a copy of programs required to shut the system down"
@echo "--------------------------------------------------------------"
@cp /bin/sh ${MAKEOBJDIRPREFIX}
@cp /sbin/reboot ${MAKEOBJDIRPREFIX}
.endif
@echo
@echo "--------------------------------------------------------------"
@echo " Doing an aout installworld using the aout tools in the aout"
@echo " obj tree."
@echo "--------------------------------------------------------------"
@cd ${.CURDIR}; MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/aout \
PATH=${AOUTTMPPATH} OBJFORMAT=aout NOTOOLS=1 \
TOOLROOT=${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp \
make -f Makefile.inc1 -m ${.CURDIR}/share/mk installworld
@touch ${MAKEOBJDIRPREFIX}/do_aout_installworld
#
# The installed kernel may not match the world that is installed, so build
# a generic kernel, but don't install it. The user can decide if the kernel
# needs to be installed. Perhaps we should install it in the root
# directory as an obscure name just in case a reboot is required?
#
${MAKEOBJDIRPREFIX}/do_aout_kernel :
.if ${INSTALLEDVERSION} == "3.0-CURRENT"
@echo
@echo "--------------------------------------------------------------"
@echo " You are already running 3.0-CURRENT, so a kernel build"
@echo " is probably not required."
@echo "--------------------------------------------------------------"
.else
@echo
@echo "--------------------------------------------------------------"
@echo " Building a generic kernel using the new aout tools"
@echo "--------------------------------------------------------------"
.if exists(${.CURDIR}/sys/compile/GENERICupgrade)
@rm -rf ${.CURDIR}/sys/compile/GENERICupgrade
.endif
@cd ${.CURDIR}/sys/i386/conf; config GENERICupgrade
@-cd ${.CURDIR}/sys/compile/GENERICupgrade; make depend && make all
@cd ${.CURDIR}/sys/compile/GENERICupgrade; make depend && make all
.endif
@touch ${MAKEOBJDIRPREFIX}/do_aout_kernel
#
# Install the elf world overwriting just about all the previously installed
# aout world. Any aout things that need to be kept have already been
# installed in different places (typically in aout subdirectories).
#
${MAKEOBJDIRPREFIX}/do_elf_installworld :
@echo
@echo "--------------------------------------------------------------"
@echo " You are about to update the installed system (or the system"
@echo " that your DESTDIR points to) with the elf versions of"
@echo " everything, replacing the aout versions. You can type Ctrl-C"
@echo " to abort now, leaving just the aout world installed, or"
@echo " press return to start the second phase of the update."
@echo "--------------------------------------------------------------"
@/bin/sh -c "read -p \"Return to continue or Ctrl-C to abort: \" _e"
@echo
@echo "--------------------------------------------------------------"
@echo " Doing an elf installworld using the aout tools in the aout"
@echo " obj tree."
@echo "--------------------------------------------------------------"
@cd ${.CURDIR}; MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/elf \
PATH=${AOUTTMPPATH} OBJFORMAT=elf NOTOOLS=1 \
TOOLROOT=${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp \
make -f Makefile.inc1 -m ${.CURDIR}/share/mk installworld
@touch ${MAKEOBJDIRPREFIX}/do_elf_installworld
#
# Now that the elf world has been installed, we can set the default
# object format to elf.
#
${MAKEOBJDIRPREFIX}/do_set_objformat :
@echo
@echo "--------------------------------------------------------------"
@echo " Setting the default object format to elf"
@echo "--------------------------------------------------------------"
@echo "OBJFORMAT=elf" > /etc/objformat
@touch ${MAKEOBJDIRPREFIX}/do_set_objformat
#
# If not already running a current kernel, install the GENERICupgrade kernel
# and reboot.
#
${MAKEOBJDIRPREFIX}/do_install_kernel_reboot :
.if ${INSTALLEDVERSION} == "3.0-CURRENT"
@echo
@echo "--------------------------------------------------------------"
@echo " Your system has been updated to run elf by default!"
@echo
@echo " You should reboot your system now."
@echo "--------------------------------------------------------------"
@touch ${MAKEOBJDIRPREFIX}/do_install_kernel_reboot
.else
@echo
@echo "--------------------------------------------------------------"
@echo " Your system has been updated to run elf by default!"
@echo
@echo " Since you are running ${INSTALLEDVERSION}, the kernel must"
@echo " be installed before the system is rebooted. You can type"
@echo " Ctrl-C to abort the kernel installation (at your own risk),"
@echo " or press return for the kernel to be installed and the"
@echo " system rebooted."
@echo "--------------------------------------------------------------"
@${MAKEOBJDIRPREFIX}/sh -c "read -p \"Return to continue or Ctrl-C to abort: \" _e"
@echo
@echo "--------------------------------------------------------------"
@echo " Installing a new GENERICupgrade kernel"
@echo "--------------------------------------------------------------"
@cd ${.CURDIR}/sys/compile/GENERICupgrade; make install
@echo
@echo "--------------------------------------------------------------"
@echo " Rebooting......."
@echo "--------------------------------------------------------------"
@touch ${MAKEOBJDIRPREFIX}/do_install_kernel_reboot
@-${MAKEOBJDIRPREFIX}/reboot
.endif