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40974c748a
Recommend -Wimplicit in CWARNFLAGS next. There are still a few hundred
potential arg mismatches because no function declaration is in scope.
Don't duplicate option `-I.'.
Remove null editing of the assembler source for all profiled objects.
The required magic has been done since prehistoric times by an
asm("mcount") declaration.
Simplify the clean rule.
Don't try to be clever about timestamps involving genassym. genassym's
timestamp usually got ahead of assym.s's timestamp, so `make' almost
always had to run genassym and compare *assym.s to decide that nothing
needed to be done. The cost is reassembling a few files whenever
genassym is rebuilt. Assembling is almost as fast as comparing.
Always go through genassym.o to build genassym. This would have avoided
numerous bugs involving mkdep -p. Now it just stops genassym from
depending on the name of the temporary object file.
Use ${CFLAGS} for building genassym. Mainly ${CWARNFLAGS} were missing.
189 lines
5.4 KiB
Makefile
189 lines
5.4 KiB
Makefile
# Copyright 1990 W. Jolitz
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# from: @(#)Makefile.i386 7.1 5/10/91
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# $Id: Makefile.i386,v 1.47 1994/10/21 01:10:54 wollman 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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# N.B.: NO DEPENDENCIES ON FOLLOWING FLAGS ARE INVISIBLE TO MAKEFILE
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# IF YOU CHANGE THE DEFINITION OF ANY OF THESE RECOMPILE EVERYTHING
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#
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# -DTRACE compile in kernel tracing hooks
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# -DQUOTA compile in file system quotas
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#
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TOUCH?= touch -f -c
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LD?= /usr/bin/ld
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CC?= cc
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CPP?= cpp
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DBSYM?= /usr/sbin/dbsym
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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= ${S}/i386
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CWARNFLAGS?=-W -Wreturn-type -Wcomment -Wredundant-decls
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#
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# The following flags are next up for working on:
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# -Wimplicit -Wnested-externs
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#
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# When working on removing warnings from code, the `-Werror' flag should be
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# of material assistance.
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#
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COPTFLAGS?=-O
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INCLUDES= -I. -I$S -I$S/sys
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COPTS= ${INCLUDES} ${IDENT} -DKERNEL -Di386 -DLOAD_ADDRESS=0x${LOAD_ADDRESS}
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ASFLAGS=
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CFLAGS= ${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS}
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LOAD_ADDRESS?= F0100000
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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 errors leak out of all the pipes. Should use cc *.S.
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# XXX LOCORE means "don't declare C stuff" not "for locore.s".
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NORMAL_S= ${CPP} -DLOCORE ${COPTS} $< | ${AS} ${ASFLAGS} -o $*.o
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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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PROFILE_C= ${CC} -c ${CFLAGS} ${PARAM} $<
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SFILES= ${I386}/i386/exception.s ${I386}/i386/microtime.s \
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${I386}/i386/support.s ${I386}/i386/swtch.s ${I386}/apm/apm_setup.s
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SYSTEM_CFILES= ioconf.c param.c vnode_if.c
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SYSTEM_SFILES= ${I386}/i386/locore.s
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SYSTEM_OBJS=locore.o vnode_if.o ${OBJS} ioconf.o param.o
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SYSTEM_DEP=Makefile symbols.sort ${SYSTEM_OBJS} libkern.a
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SYSTEM_LD_HEAD= @echo loading $@; rm -f $@
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SYSTEM_LD= @${LD} -Bstatic -Z -T ${LOAD_ADDRESS} -o $@ -X ${SYSTEM_OBJS} vers.o libkern.a
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SYSTEM_LD_TAIL= @echo rearranging symbols; symorder symbols.sort $@; \
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${DBSYM} -fT ${LOAD_ADDRESS} $@; size $@; chmod 755 $@
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%OBJS
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%CFILES
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%LOAD
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# This is slightly different from before in that if you define PROF
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# to anything, it will assume profiling. Don't do "PROF=" to turn
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# profiling off!
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.if exists($S/libkern/obj)
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LIBKERNP=$S/libkern/obj
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.else
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LIBKERNP=$S/libkern
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.endif
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.if defined(PROF)
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LIBKERN=${LIBKERNP}/libkern_p.a
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.else
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LIBKERN=${LIBKERNP}/libkern.a
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.endif
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libkern.a: ${LIBKERN}
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@rm -f libkern.a
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ln -s ${LIBKERN} libkern.a
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${LIBKERN}:
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@(cd $S/libkern; make)
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clean:
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rm -f eddep kernel tags *.o *.s errs linterrs makelinks genassym
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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.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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# 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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# depend on network configuration
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af.o uipc_proto.o 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} ${I386}/i386/genassym.c
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genassym: genassym.o
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${CC} -static ${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
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mkdep ${COPTS} ${CFILES} ${SYSTEM_CFILES}
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mkdep -a ${COPTS} ${PARAM} ${I386}/i386/genassym.c
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MKDEP_CPP=${CPP} ; export MKDEP_CPP ; \
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mkdep -a -DLOCORE ${COPTS} ${SFILES} ${SYSTEM_SFILES}
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links:
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egrep '#if' ${CFILES} | 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} | 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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chflags noschg /kernel
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mv /kernel /kernel.old
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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 machine/pte.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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%RULES
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# DO NOT DELETE THIS LINE -- make depend uses it
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