11fb97daa7
- 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.
231 lines
9.4 KiB
Makefile
231 lines
9.4 KiB
Makefile
#
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# $Id$
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#
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# This makefile contains rules for preforming upgrades that are outside
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# the scope of the normal build world process.
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#
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#
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# Build things relative to the user's preferred object directory,
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# defaulting to /usr/obj if not defined.
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#
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MAKEOBJDIRPREFIX?=/usr/obj
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#
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# The installed operating system release gives us the hint as to whether
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# we need to build a kernel too.
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#
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INSTALLEDVERSION!=uname -r
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#
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# Upgrade the installed make to the current version using the installed
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# headers, libraries and build tools. This is required on installed versions
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# prior to 2.2.5 in which the installed make doesn't support the -m argument.
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#
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make :
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Upgrading the installed make"
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@echo "--------------------------------------------------------------"
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@cd ${.CURDIR}/usr.bin/make; \
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make obj && make depend && make all && make install
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#
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# Upgrade from aout to elf, doing an aout build first to ensure that there
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# are up-to-date tools before building the initial elf world. The aout
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# tools just built into the object directory tree and executed from there
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# during the elf build. Then install the aout tools, build an aout kernel
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# with them (in case the installed kernel is an older version), then
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# install the elf world.
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#
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aout-to-elf aout-to-elf-install : \
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${MAKEOBJDIRPREFIX}/do_aout_buildworld \
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${MAKEOBJDIRPREFIX}/do_elf_buildworld \
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${MAKEOBJDIRPREFIX}/do_aout_installworld \
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${MAKEOBJDIRPREFIX}/do_aout_kernel \
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${MAKEOBJDIRPREFIX}/do_elf_installworld \
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${MAKEOBJDIRPREFIX}/do_set_objformat \
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${MAKEOBJDIRPREFIX}/do_install_kernel_reboot
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#
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# Just do the build parts of the transition build.
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#
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aout-to-elf-build : \
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${MAKEOBJDIRPREFIX}/do_aout_buildworld \
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${MAKEOBJDIRPREFIX}/do_elf_buildworld
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#
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# The installed system may not have tools capable of building an elf
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# aware world, so a complete aout buildworld is required to get a known
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# set of tools.
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#
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${MAKEOBJDIRPREFIX}/do_aout_buildworld :
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Doing an aout buildworld to get an up-to-date set of tools"
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@echo "--------------------------------------------------------------"
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@cd ${.CURDIR}; MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/aout \
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OBJFORMAT=aout \
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make -f Makefile.inc1 -m ${.CURDIR}/share/mk buildworld
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@touch ${MAKEOBJDIRPREFIX}/do_aout_buildworld
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#
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# Temporary path for initial elf build.
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#
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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
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#
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# Use the aout tools from the aout buildworld to do an elf buildworld.
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#
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${MAKEOBJDIRPREFIX}/do_elf_buildworld :
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Doing an elf buildworld using the aout tools in the aout"
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@echo " obj tree."
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@echo "--------------------------------------------------------------"
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@cd ${.CURDIR}; MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/elf \
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PATH=${AOUTTMPPATH} OBJFORMAT=elf NOTOOLS=1 \
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TOOLROOT=${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp \
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make -f Makefile.inc1 -m ${.CURDIR}/share/mk buildworld
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@touch ${MAKEOBJDIRPREFIX}/do_elf_buildworld
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#
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# Before installing the aout world, allow for the possibility that the
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# world about to be installed has some different syscalls to the installed
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# kernel which will make shutting the system down problematic. We set aside
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# copies of certain programs which match the running kernel.
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#
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# Install the aout world so that anything that isn't replaced by the
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# elf world will be updated.
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#
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${MAKEOBJDIRPREFIX}/do_aout_installworld :
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@echo
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@echo "--------------------------------------------------------------"
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@echo " You are about to update the installed system (or the system"
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@echo " that your DESTDIR points to). You can type Ctrl-C to abort"
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@echo " now or press return to start the first phase of the update."
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@echo "--------------------------------------------------------------"
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@/bin/sh -c "read -p \"Return to continue or Ctrl-C to abort: \" _e"
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.if ${INSTALLEDVERSION} != "3.0-CURRENT"
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Saving a copy of programs required to shut the system down"
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@echo "--------------------------------------------------------------"
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@cp /bin/sh ${MAKEOBJDIRPREFIX}
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@cp /sbin/reboot ${MAKEOBJDIRPREFIX}
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.endif
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Doing an aout installworld using the aout tools in the aout"
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@echo " obj tree."
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@echo "--------------------------------------------------------------"
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@cd ${.CURDIR}; MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/aout \
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PATH=${AOUTTMPPATH} OBJFORMAT=aout NOTOOLS=1 \
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TOOLROOT=${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp \
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make -f Makefile.inc1 -m ${.CURDIR}/share/mk installworld
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@touch ${MAKEOBJDIRPREFIX}/do_aout_installworld
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#
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# The installed kernel may not match the world that is installed, so build
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# a generic kernel, but don't install it. The user can decide if the kernel
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# needs to be installed. Perhaps we should install it in the root
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# directory as an obscure name just in case a reboot is required?
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#
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${MAKEOBJDIRPREFIX}/do_aout_kernel :
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.if ${INSTALLEDVERSION} == "3.0-CURRENT"
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@echo
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@echo "--------------------------------------------------------------"
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@echo " You are already running 3.0-CURRENT, so a kernel build"
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@echo " is probably not required."
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@echo "--------------------------------------------------------------"
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.else
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Building a generic kernel using the new aout tools"
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@echo "--------------------------------------------------------------"
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.if exists(${.CURDIR}/sys/compile/GENERICupgrade)
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@rm -rf ${.CURDIR}/sys/compile/GENERICupgrade
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.endif
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@cd ${.CURDIR}/sys/i386/conf; config GENERICupgrade
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@-cd ${.CURDIR}/sys/compile/GENERICupgrade; make depend && make all
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@cd ${.CURDIR}/sys/compile/GENERICupgrade; make depend && make all
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.endif
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@touch ${MAKEOBJDIRPREFIX}/do_aout_kernel
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#
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# Install the elf world overwriting just about all the previously installed
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# aout world. Any aout things that need to be kept have already been
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# installed in different places (typically in aout subdirectories).
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#
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${MAKEOBJDIRPREFIX}/do_elf_installworld :
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@echo
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@echo "--------------------------------------------------------------"
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@echo " You are about to update the installed system (or the system"
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@echo " that your DESTDIR points to) with the elf versions of"
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@echo " everything, replacing the aout versions. You can type Ctrl-C"
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@echo " to abort now, leaving just the aout world installed, or"
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@echo " press return to start the second phase of the update."
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@echo "--------------------------------------------------------------"
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@/bin/sh -c "read -p \"Return to continue or Ctrl-C to abort: \" _e"
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Doing an elf installworld using the aout tools in the aout"
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@echo " obj tree."
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@echo "--------------------------------------------------------------"
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@cd ${.CURDIR}; MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/elf \
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PATH=${AOUTTMPPATH} OBJFORMAT=elf NOTOOLS=1 \
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TOOLROOT=${MAKEOBJDIRPREFIX}/aout${.CURDIR}/tmp \
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make -f Makefile.inc1 -m ${.CURDIR}/share/mk installworld
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@touch ${MAKEOBJDIRPREFIX}/do_elf_installworld
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#
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# Now that the elf world has been installed, we can set the default
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# object format to elf.
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#
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${MAKEOBJDIRPREFIX}/do_set_objformat :
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Setting the default object format to elf"
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@echo "--------------------------------------------------------------"
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@echo "OBJFORMAT=elf" > /etc/objformat
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@touch ${MAKEOBJDIRPREFIX}/do_set_objformat
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#
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# If not already running a current kernel, install the GENERICupgrade kernel
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# and reboot.
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#
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${MAKEOBJDIRPREFIX}/do_install_kernel_reboot :
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.if ${INSTALLEDVERSION} == "3.0-CURRENT"
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Your system has been updated to run elf by default!"
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@echo
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@echo " You should reboot your system now."
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@echo "--------------------------------------------------------------"
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@touch ${MAKEOBJDIRPREFIX}/do_install_kernel_reboot
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.else
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Your system has been updated to run elf by default!"
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@echo
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@echo " Since you are running ${INSTALLEDVERSION}, the kernel must"
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@echo " be installed before the system is rebooted. You can type"
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@echo " Ctrl-C to abort the kernel installation (at your own risk),"
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@echo " or press return for the kernel to be installed and the"
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@echo " system rebooted."
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@echo "--------------------------------------------------------------"
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@${MAKEOBJDIRPREFIX}/sh -c "read -p \"Return to continue or Ctrl-C to abort: \" _e"
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Installing a new GENERICupgrade kernel"
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@echo "--------------------------------------------------------------"
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@cd ${.CURDIR}/sys/compile/GENERICupgrade; make install
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@echo
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@echo "--------------------------------------------------------------"
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@echo " Rebooting......."
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@echo "--------------------------------------------------------------"
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@touch ${MAKEOBJDIRPREFIX}/do_install_kernel_reboot
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@-${MAKEOBJDIRPREFIX}/reboot
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.endif
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