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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

#	$OpenBSD: Makefile.sgi,v 1.16 2007/07/30 16:23:33 thib 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/sgi/conf/``machineid''
# after which you should do
#	 config ``machineid''
# Machine generic makefile changes should be made in
#	/sys/arch/sgi/conf/Makefile.``machinetype''
# 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

.include <bsd.own.mk>

AS?=	as
CC?=	cc
MKDEP?=	mkdep
SIZE?=	size
CPP?=	cpp
LD?=	ld ${ENDIAN}
STRIP?=	strip
TOUCH?=	touch

CPP+=${ENDIAN}
CC+=${ENDIAN}
AS+=${ENDIAN}
LD+=${ENDIAN}

# source tree is located via $S relative to the compilation directory
.ifndef S
S!=	cd ../../../..; pwd
.endif
SGI=$S/arch/sgi
MIPS64=	$S/arch/mips64

INCLUDES=	-I. -I$S -I$S/arch -nostdinc
CPPFLAGS=	${INCLUDES} ${IDENT} -D_KERNEL -D__sgi__
CDIAGFLAGS=	-Werror -Wall -Wmissing-prototypes -Wstrict-prototypes \
		-Wno-uninitialized -Wno-format -Wno-main \
		-Wstack-larger-than-2047
CMACHFLAGS+=	-mno-abicalls ${ABI} -msoft-float \
		-fno-builtin-printf -fno-builtin-log
.if ${IDENT:M-DNO_PROPOLICE}
CMACHFLAGS+=	-fno-stack-protector
.endif
COPTS?=		-O2
CFLAGS=		${DEBUG} ${CDIAGFLAGS} ${CMACHFLAGS} ${COPTS} ${PIPE}
AFLAGS=		-x assembler-with-cpp -traditional-cpp \
		-mno-abicalls ${ABI} -D_LOCORE
STRIPFLAGS=	-g -X -x

### 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

NORMAL_C=	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
NORMAL_C_C=	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} ${PARAM} -c $<
NORMAL_S=	${CC} ${AFLAGS} ${CPPFLAGS} -c $<
NORMAL_S_C=	${AS}  ${COPTS} ${PARAM} $< -o $@

%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 ${OBJS} param.o ioconf.o \
		${LIBKERN} ${LIBCOMPAT}
#
SYSTEM_DEP=	Makefile ${SYSTEM_OBJ}
SYSTEM_LD_HEAD=	rm -f $@
SYSTEM_LD=	@if [ X${DEBUG} = X-g ]; \
		then strip=-X; \
		else strip=-x; \
		fi; \
		echo ${LD} $$strip -o $@ -e start -T ${SGI}/conf/ld.script \
			-Ttext=${LINK_ADDRESS} '$${SYSTEM_OBJ}' vers.o; \
		${LD} $$strip -o $@ -e start -T ${SGI}/conf/ld.script \
			-Ttext=${LINK_ADDRESS} ${SYSTEM_OBJ} vers.o
#
SYSTEM_LD_TAIL=	chmod 755 $@; \
		${SIZE} $@

DEBUG?=
.if ${DEBUG} == "-g"
SYSTEM_LD_TAIL+=; \
		echo mv $@ $@.gdb; rm -f $@.gdb; mv $@ $@.gdb; \
		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
.endif

%LOAD

newvers:
	sh $S/conf/newvers.sh
	${CC} $(CFLAGS) -c vers.c

clean::
	rm -f eddep bsd bsd.gdb bsd.ecoff tags *.o locore.i [a-z]*.s \
	    Errs errs linterrs makelinks

lint: /tmp param.c
	@lint -hbxn -DGENERIC -Dvolatile= ${COPTS} ${PARAM} -UKGDB \
	    ${CFILES} ioconf.c param.c

symbols.sort: ${SGI}/sgi/symbols.raw
	grep -v '^#' ${SGI}/sgi/symbols.raw \
	    | sed 's/^	//' | sort -u > symbols.sort

locore.o: ${SGI}/sgi/locore.S assym.h
	${NORMAL_S}

# the following are necessary because the files depend on the types of
# cpu's included in the system configuration
clock.o machdep.o autoconf.o conf.o locore.o: Makefile

# depend on network configuration
uipc_domain.o uipc_proto.o vfs_conf.o: Makefile
if_tun.o if_loop.o if_ethersubr.o: Makefile
if_arp.o if_ether.o: Makefile
ip_input.o ip_output.o in_pcb.o in_proto.o: Makefile
tcp_subr.o tcp_timer.o tcp_output.o: Makefile

assym.h: $S/kern/genassym.sh ${SGI}/sgi/genassym.cf Makefile
	sh $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} \
	    ${PARAM} < ${SGI}/sgi/genassym.cf > assym.h.tmp && \
	    mv -f assym.h.tmp assym.h

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

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

ioconf.o: ioconf.c
	${NORMAL_C}

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

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

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

depend:: .depend
.depend: ${SRCS} assym.h param.c
	${MKDEP} ${AFLAGS} ${CPPFLAGS} ${SGI}/sgi/locore.S
	${MKDEP} -a ${CFLAGS} ${CPPFLAGS} param.c ioconf.c ${CFILES}
#	${MKDEP} -a ${AFLAGS} ${CPPFLAGS} ${SFILES}

# The install target can be redefined by putting a
# install-kernel-${MACHINE_NAME} target into /etc/mk.conf
MACHINE_NAME!=  uname -n
install: install-kernel-${MACHINE_NAME}
.if !target(install-kernel-${MACHINE_NAME}})
install-kernel-${MACHINE_NAME}:
	rm -f /obsd
	ln /bsd /obsd
	cp bsd /nbsd
	mv /nbsd /bsd
.endif

%RULES