9081eec1fb
have successfully built, booted, and run a number of different ELF kernel configurations, including GENERIC. LINT also builds and links cleanly, though I have not tried to boot it. The impact on developers is virtually nil, except for two things. All linker sets that might possibly be present in the kernel must be listed in "sys/i386/i386/setdefs.h". And all C symbols that are also referenced from assembly language code must be listed in "sys/i386/include/asnames.h". It so happens that failure to do these things will have no impact on the a.out kernel. But it will break the build of the ELF kernel. The ELF bootloader works, but it is not ready to commit quite yet.
205 lines
5.7 KiB
Makefile
205 lines
5.7 KiB
Makefile
# Makefile.i386 -- with config changes.
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# Copyright 1990 W. Jolitz
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# from: @(#)Makefile.i386 7.1 5/10/91
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# $Id: Makefile.i386,v 1.93 1997/02/22 09:31:39 peter Exp $
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#
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# Makefile for FreeBSD
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#
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# This makefile is constructed from a machine description:
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# config machineid
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# Most changes should be made in the machine description
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# /sys/i386/conf/``machineid''
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# after which you should do
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# config machineid
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# Generic makefile changes should be made in
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# /sys/i386/conf/Makefile.i386
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# after which config should be rerun for all machines.
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#
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BINFORMAT?= aout
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#BINFORMAT?= elf
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.if exists(./@/.)
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S= ./@
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.else
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S= ../..
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.endif
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I386= ${S}/i386
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COPTFLAGS?=-O
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INCLUDES= -nostdinc -I- -I. -I$S
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# This hack is to allow kernel compiles to succeed on machines w/out srcdist
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.if exists($S/../include)
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INCLUDES+= -I$S/../include
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.else
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INCLUDES+= -I/usr/include
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.endif
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COPTS= ${INCLUDES} ${IDENT} -DKERNEL
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CFLAGS= ${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS}
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LOAD_ADDRESS?= F0100000
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.if defined(PROF)
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PROF+= -malign-functions=4
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.if ${PROFLEVEL} >= 2
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IDENT+= -DGPROF4 -DGUPROF
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PROF+= -mprofiler-epilogue
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.endif
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.endif
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NORMAL_C= ${CC} -c ${CFLAGS} ${PROF} $<
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NORMAL_C_C= ${CC} -c ${CFLAGS} ${PROF} ${PARAM} $<
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# XXX LOCORE means "don't declare C stuff" not "for locore.s".
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NORMAL_S= ${CC} -c -x assembler-with-cpp -DLOCORE ${COPTS} $<
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DRIVER_C= ${CC} -c ${CFLAGS} ${PROF} $<
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DRIVER_C_C= ${CC} -c ${CFLAGS} ${PROF} ${PARAM} $<
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DRIVER_S= ${CC} -c -x assembler-with-cpp -DLOCORE ${COPTS} $<
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PROFILE_C= ${CC} -c ${CFLAGS} ${PARAM} $<
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SYSTEM_CFILES= ${I386}/i386/setdef0.c ioconf.c param.c vnode_if.c config.c \
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${I386}/i386/setdef1.c
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SYSTEM_SFILES= ${I386}/i386/locore.s
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SYSTEM_OBJS= locore.o setdef0.o vnode_if.o ${OBJS} ioconf.o param.o config.o \
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setdef1.o
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SYSTEM_DEP= Makefile symbols.exclude symbols.sort ${SYSTEM_OBJS}
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.if ${CFLAGS:M-g} == ""
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SYMORDER_EXCLUDE=-x symbols.exclude
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.endif
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SYSTEM_LD_HEAD= @echo loading $@; rm -f $@
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.if ${BINFORMAT} == aout
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SYSTEM_LD= @${LD} -Bstatic -Z -T ${LOAD_ADDRESS} -o $@ -X ${SYSTEM_OBJS} vers.o
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SYSTEM_LD_TAIL= @echo rearranging symbols; \
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symorder -m ${SYMORDER_EXCLUDE} symbols.sort $@; \
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size $@; chmod 755 $@
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.endif
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.if ${BINFORMAT} == elf
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SYSTEM_LD= @${LD} -Bstatic -Ttext ${LOAD_ADDRESS} -e btext -o $@ -X ${SYSTEM_OBJS} vers.o
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SYSTEM_LD_TAIL= @size $@; chmod 755 $@
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.endif
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%BEFORE_DEPEND
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%OBJS
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%CFILES
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%SFILES
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%LOAD
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%CLEAN
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clean:
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rm -f *.o *.s eddep errs genassym kernel linterrs \
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makelinks param.c symbols.exclude symbols.sort tags \
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vers.c vnode_if.c vnode_if.h ${CLEAN}
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#lint: /tmp param.c
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# @lint -hbxn -DGENERIC -Dvolatile= ${COPTS} ${PARAM} \
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# ${I386}/i386/Locore.c ${CFILES} ioconf.c param.c | \
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# grep -v 'struct/union .* never defined' | \
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# grep -v 'possible pointer alignment problem'
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symbols.exclude: Makefile
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echo "gcc2_compiled." >symbols.exclude
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echo "___gnu_compiled_c" >>symbols.exclude
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symbols.sort: ${I386}/i386/symbols.raw
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grep -v '^#' ${I386}/i386/symbols.raw \
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| sed 's/^ //' | sort -u > symbols.sort
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locore.o: ${I386}/i386/locore.s assym.s
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${NORMAL_S}
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setdef0.o: ${I386}/i386/setdef0.c
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${NORMAL_C}
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setdef1.o: ${I386}/i386/setdef1.c
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${NORMAL_C}
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# everything potentially depends on the Makefile since everything potentially
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# depends on the options. Some things are more dependent on the Makefile for
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# historical reasons.
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machdep.o: Makefile
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# the following is necessary because autoconf.o depends on #if GENERIC
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autoconf.o: Makefile
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# XXX - may no longer be needed
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locore.o: Makefile
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# depends on KDB (cons.o also depends on GENERIC)
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trap.o cons.o: Makefile
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# this rule stops ./assym.s in .depend from causing problems
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./assym.s: assym.s
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assym.s: genassym
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./genassym >assym.s
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# Some of the defines that genassym outputs may well depend on the
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# value of kernel options.
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genassym.o: ${I386}/i386/genassym.c Makefile
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${CC} -c ${CFLAGS} ${PARAM} -UKERNEL ${I386}/i386/genassym.c
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genassym: genassym.o
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${CC} ${CFLAGS} ${PARAM} genassym.o -o $@
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# XXX this assumes that the options for NORMAL_C* and DRIVER_C* are identical.
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depend: assym.s param.c vnode_if.h ${BEFORE_DEPEND}
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rm -f .newdep
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mkdep -a -f .newdep ${COPTS} ${CFILES} ${SYSTEM_CFILES}
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mkdep -a -f .newdep ${COPTS} ${PARAM} -UKERNEL ${I386}/i386/genassym.c
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MKDEP_CPP="${CC} -E -x assembler-with-cpp" ; export MKDEP_CPP ; \
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mkdep -a -f .newdep -DLOCORE ${COPTS} ${SFILES} ${SYSTEM_SFILES}
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rm -f .depend
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mv -f .newdep .depend
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links:
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egrep '#if' ${CFILES:Nswapkernel.c} | sed -f $S/conf/defines | \
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sed -e 's/:.*//' -e 's/\.c/.o/' | sort -u > dontlink
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echo ${CFILES:Nswapkernel.c} | tr -s ' ' '\12' | sed 's/\.c/.o/' | \
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sort -u | comm -23 - dontlink | \
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sed 's,../.*/\(.*.o\),rm -f \1;ln -s ../GENERIC/\1 \1,' > makelinks
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sh makelinks && rm -f dontlink
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tags:
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@echo "see $S/kern/Makefile for tags"
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install:
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@if [ ! -f kernel ] ; then \
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echo "You must first build your kernel before trying to install." ; \
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exit 1 ; \
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fi
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chflags noschg /kernel
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mv /kernel /kernel.old
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if [ `/usr/sbin/sysctl -n kern.bootfile` = /kernel ] ; then \
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/usr/sbin/sysctl -w kern.bootfile=/kernel.old ; \
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mv -f /var/db/kvm_kernel.db /var/db/kvm_kernel.old.db ; \
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fi
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install -c -m 555 -o root -g wheel -fschg kernel /
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ioconf.o: ioconf.c $S/sys/param.h $S/sys/buf.h \
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${I386}/isa/isa_device.h ${I386}/isa/isa.h ${I386}/isa/icu.h
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${CC} -c ${CFLAGS} ioconf.c
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param.c: $S/conf/param.c
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-rm -f param.c
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cp $S/conf/param.c .
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param.o: param.c Makefile
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${CC} -c ${CFLAGS} ${PARAM} param.c
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vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP}
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sh $S/conf/newvers.sh ${KERN_IDENT} ${IDENT}
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${CC} ${CFLAGS} -c vers.c
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vnode_if.c: $S/kern/vnode_if.sh $S/kern/vnode_if.src
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sh $S/kern/vnode_if.sh $S/kern/vnode_if.src
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vnode_if.h: $S/kern/vnode_if.sh $S/kern/vnode_if.src
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sh $S/kern/vnode_if.sh $S/kern/vnode_if.src
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.include <bsd.kern.mk>
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%RULES
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# DO NOT DELETE THIS LINE -- make depend uses it
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