#	$OpenBSD: Makefile.sun3,v 1.22 1998/03/03 22:35:11 niklas Exp $
#	$NetBSD: Makefile.sun3,v 1.51 1996/09/09 21:07:08 mycroft Exp $

# Makefile for OpenBSD
#
# This makefile is constructed from a machine description:
#	config machineid
# Most changes should be made in the machine description
#	/sys/arch/sun3/conf/``machineid''
# after which you should do
#	config machineid
# Machine generic makefile changes should be made in
#	/sys/arch/sun3/conf/Makefile.sun3
# after which config should be rerun for all machines of that type.
#
# N.B.: NO DEPENDENCIES ON FOLLOWING FLAGS ARE VISIBLE TO MAKEFILE
#	IF YOU CHANGE THE DEFINITION OF ANY OF THESE RECOMPILE EVERYTHING
#
# -DTRACE	compile in kernel tracing hooks
# -DQUOTA	compile in file system quotas

# DEBUG is set to -g if debugging.
# PROF is set to -pg if profiling.

CC?=	cc
LD?=	ld
MKDEP?=	mkdep
STRIP?=	strip

# source tree is located via $S relative to the compilation directory
.ifndef S
S!=	cd ../../../..; pwd
.endif
SUN3=	$S/arch/sun3

# Override CPP defaults entirely, so cross-compilation works.
INCLUDES=	-I. -I$S/arch -I$S -nostdinc
XDEFS=		-undef -D__OpenBSD__ -Dm68k -Dmc68000
CPPFLAGS=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL \
		-Dmc68020 -Dsun3 ${XDEFS}
CWARNFLAGS= 	-Werror -Wall -Wstrict-prototypes \
		-Wno-format -Wno-uninitialized -Wno-main \
		# -Wmissing-prototypes
CFLAGS= 	${DEBUG} ${CWARNFLAGS} -O2 -msoft-float -fno-defer-pop
AFLAGS=		-m68020 -x assembler-with-cpp -traditional-cpp -D_LOCORE
LINKFLAGS=	-N -Ttext 0E004000 -e start
STRIPFLAGS=	-d

HOSTED_CC=	${CC}
HOSTED_CPPFLAGS=${CPPFLAGS:S/^-nostdinc$//}
HOSTED_CFLAGS=	${CFLAGS}

### find out what to use for libkern
.include "$S/lib/libkern/Makefile.inc"
.ifndef PROF
LIBKERN=	${KERNLIB}
.else
LIBKERN=	${KERNLIB_PROF}
.endif

### find out what to use for libcompat
.include "$S/compat/common/Makefile.inc"
.ifndef PROF
LIBCOMPAT=	${COMPATLIB}
.else
LIBCOMPAT=	${COMPATLIB_PROF}
.endif

# compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
# HOSTED}, and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).

NORMAL_C=	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
NORMAL_S=	${CC} ${AFLAGS} ${CPPFLAGS} -c $<

HOSTED_C=	${HOSTED_CC} ${HOSTED_CFLAGS} ${HOSTED_CPPFLAGS} -c $<

%OBJS

%CFILES

%SFILES

# load lines for config "xxx" will be emitted as:
# xxx: ${SYSTEM_DEP} swapxxx.o
#	${SYSTEM_LD_HEAD}
#	${SYSTEM_LD} swapxxx.o
#	${SYSTEM_LD_TAIL}
SYSTEM_OBJ=	locore.o \
		param.o ioconf.o ${OBJS} ${LIBKERN} ${LIBCOMPAT}
SYSTEM_DEP=	Makefile ${SYSTEM_OBJ}
SYSTEM_LD_HEAD=	@rm -f $@
SYSTEM_LD=	@echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' vers.o; \
		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} vers.o
SYSTEM_LD_TAIL=	@size $@; chmod 755 $@

DEBUG?=
.if ${DEBUG} == "-g"
LINKFLAGS+=	-X
SYSTEM_LD_TAIL+=; \
		echo cp $@ $@.gdb; rm -f $@.gdb; cp $@ $@.gdb; \
		echo ${STRIP} ${STRIPFLAGS} $@; ${STRIP} ${STRIPFLAGS} $@
.else
LINKFLAGS+=	-S
.endif

%LOAD

assym.h: genassym
	./genassym >assym.h

# Doing a cross-build of this is very tricky, and very dependent
# on compatibility of things like structure member alignment in
# the compiler used as HOSTED_CC (must match the native compiler).
# Often this is not possible at all, and you just have to build
# the assym.h file by hand on some other machine. -gwr
genassym: ${SUN3}/sun3/genassym.c
	${CC} ${CPPFLAGS} -E $< > $@.i
	${HOSTED_CC} -o $@ $@.i

param.c: $S/conf/param.c
	rm -f param.c
	cp $S/conf/param.c .

param.o: param.c Makefile
	${NORMAL_C}

ioconf.o: ioconf.c
	${NORMAL_C}

newvers: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP}
	sh $S/conf/newvers.sh
	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c


clean::
	rm -f eddep *bsd bsd.gdb tags *.[io] [a-z]*.s \
	    [Ee]rrs linterrs makelinks genassym genassym.o assym.h

lint:
	@lint -hbxncez -DGENERIC -Dvolatile= ${CPPFLAGS} -UKGDB \
	    ${CFILES} ${SUN3}/sun3/swapgeneric.c ioconf.c param.c | \
	    grep -v 'static function .* unused'

tags:
	@echo "see $S/kern/Makefile for tags"

links:
	egrep '#if' ${CFILES} | sed -f $S/conf/defines | \
	  sed -e 's/:.*//' -e 's/\.c/.o/' | sort -u > dontlink
	echo ${CFILES} | tr -s ' ' '\12' | sed 's/\.c/.o/' | \
	  sort -u | comm -23 - dontlink | \
	  sed 's,../.*/\(.*.o\),rm -f \1; ln -s ../GENERIC/\1 \1,' > makelinks
	sh makelinks && rm -f dontlink

SRCS=	${SUN3}/sun3/locore.s \
	param.c ioconf.c ${CFILES} ${SFILES}
depend:: .depend
.depend: ${SRCS} assym.h param.c
	${MKDEP} ${AFLAGS} ${CPPFLAGS} param.c ioconf.c ${CFILES}
	${MKDEP} -a ${HOSTED_CFLAGS} ${HOSTED_CPPFLAGS} \
	    ${SUN3}/sun3/genassym.c

# XXX - see below
#	${MKDEP} -a ${APPFLAGS} ${SUN3}/sun3/locore.s
#	${MKDEP} -a ${APPFLAGS} ${SFILES}
#
# For cross-compilation, the "gcc -M" mkdep script is convenient,
# but that does not correctly make rules from *.s files.  The
# easiest compromise is to just list those dependencies here.
locore.o: assym.h machine/trap.h m68k/trap.h
copy.o:   assym.h $S/sys/errno.h


# depend on root or device configuration
autoconf.o conf.o: Makefile
 
# depend on network or filesystem configuration 
uipc_proto.o vfs_conf.o: Makefile 

# depend on maxusers
genassym.o machdep.o: Makefile

# depend on CPU configuration 
db_machdep.o dvma.o machdep.o pmap.o sun3_startup.o vm_machdep.o: Makefile


locore.o: ${SUN3}/sun3/locore.s assym.h
	${NORMAL_S}

%RULES