Add initial support for the FreeBSD/alpha kernel. This is very much a

work in progress and has never booted a real machine.  Initial
development and testing was done using SimOS (see
http://simos.stanford.edu for details).  On the SimOS simulator, this
port successfully reaches single-user mode and has been tested with
loads as high as one copy of /bin/ls :-).

Obtained from: partly from NetBSD/alpha

4 files changed, 373 insertions, 2 deletions

diff --git a/sys/conf/Makefile.alpha b/sys/conf/Makefile.alpha
new file mode 100644
index 0000000..ecc9daa
--- /dev/null
+++ b/sys/conf/Makefile.alpha
@@ -0,0 +1,272 @@
+# Makefile.alpha -- with config changes.
+# Copyright 1990 W. Jolitz
+#	from: @(#)Makefile.alpha	7.1 5/10/91
+#	$Id: Makefile.alpha,v 1.109 1998/04/17 07:51:36 dima Exp $
+#
+# Makefile for FreeBSD
+#
+# This makefile is constructed from a machine description:
+#	config machineid
+# Most changes should be made in the machine description
+#	/sys/alpha/conf/``machineid''
+# after which you should do
+#	 config machineid
+# Generic makefile changes should be made in
+#	/sys/alpha/conf/Makefile.alpha
+# after which config should be rerun for all machines.
+#
+
+# Which version of config(8) is required.
+%VERSREQ=	300003
+
+BINFORMAT?=	elf
+
+STD8X16FONT?=	iso
+
+.if exists(./@/.)
+S=	./@
+.else
+S=	../..
+.endif
+ALPHA=	${S}/alpha
+
+COPTFLAGS?=-O
+INCLUDES= -nostdinc -I- -I. -I$S
+# This hack is to allow kernel compiles to succeed on machines w/out srcdist
+.if exists($S/../include)
+INCLUDES+= -I$S/../include
+.else
+INCLUDES+= -I/usr/include
+.endif
+COPTS=	${INCLUDES} ${IDENT} -DKERNEL -include opt_global.h
+CFLAGS=	${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS} -mno-fp-regs
+LOAD_ADDRESS?=	0xfffffc0000230000
+DEFINED_PROF=	${PROF}
+.if defined(PROF)
+CFLAGS+=	-malign-functions=4
+.if ${PROFLEVEL} >= 2
+IDENT+=	-DGPROF4 -DGUPROF
+PROF+=	-mprofiler-epilogue
+.endif
+.endif
+
+NORMAL_C= ${CC} -c ${CFLAGS} ${PROF} $<
+NORMAL_C_C= ${CC} -c ${CFLAGS} ${PROF} ${PARAM} $<
+# XXX LOCORE means "don't declare C stuff" not "for locore.s".
+NORMAL_S= ${CC} -c -x assembler-with-cpp -DLOCORE ${COPTS} $<
+DRIVER_C= ${CC} -c ${CFLAGS} ${PROF} $<
+DRIVER_C_C= ${CC} -c ${CFLAGS} ${PROF} ${PARAM} $<
+DRIVER_S= ${CC} -c -x assembler-with-cpp -DLOCORE ${COPTS} $<
+PROFILE_C= ${CC} -c ${CFLAGS} ${PARAM} $<
+
+# ${ALPHA}/alpha/setdef0.c and ${ALPHA}/alpha/setdef1.c are intentionally
+# omitted from SYSTEM_CFILES.  They depend on setdefs.h, a header which
+# is generated from all of ${OBJS}.  We don't want to have to compile
+# everything just to do a make depend.
+SYSTEM_CFILES= ioconf.c param.c vnode_if.c config.c
+SYSTEM_SFILES= ${ALPHA}/alpha/locore.s
+SYSTEM_DEP= Makefile symbols.exclude symbols.sort ${SYSTEM_OBJS}
+.if ${CFLAGS:M-g} == ""
+SYMORDER_EXCLUDE=-x symbols.exclude
+.endif
+SYSTEM_LD_HEAD= @echo loading $@; rm -f $@
+.if ${BINFORMAT} == elf
+SYSTEM_OBJS= locore.o setdef0.o vnode_if.o ${OBJS} ioconf.o param.o config.o \
+	setdef1.o
+SYSTEM_LD= @${LD} -Bstatic -N -Ttext ${LOAD_ADDRESS} -e locorestart -defsym _DYNAMIC=0 \
+	-o $@ -X ${SYSTEM_OBJS} vers.o
+SYSTEM_LD_TAIL= @size $@; chmod 755 $@
+.endif
+
+%BEFORE_DEPEND
+
+%OBJS
+
+%CFILES
+
+%SFILES
+
+%LOAD
+
+%CLEAN
+
+clean:
+	rm -f *.o *.s eddep errs genassym gensetdefs kernel linterrs \
+	      makelinks param.c setdefs.h symbols.exclude symbols.sort tags \
+	      vers.c vnode_if.c vnode_if.h ${CLEAN}
+
+#lint: /tmp param.c
+#	@lint -hbxn -DGENERIC -Dvolatile= ${COPTS} ${PARAM} \
+#	  ${ALPHA}/alpha/Locore.c ${CFILES} ioconf.c param.c | \
+#	    grep -v 'struct/union .* never defined' | \
+#	    grep -v 'possible pointer alignment problem'
+
+symbols.exclude: Makefile
+	echo "gcc2_compiled." >symbols.exclude
+	echo "___gnu_compiled_c" >>symbols.exclude
+
+symbols.sort: ${ALPHA}/alpha/symbols.raw
+	grep -v '^#' ${ALPHA}/alpha/symbols.raw \
+	    | sed 's/^	//' | sort -u > symbols.sort
+
+locore.o: ${ALPHA}/alpha/locore.s assym.s
+	${NORMAL_S}
+
+setdef0.o: ${ALPHA}/alpha/setdef0.c setdefs.h
+	${NORMAL_C}
+
+setdef1.o: ${ALPHA}/alpha/setdef1.c setdefs.h
+	${NORMAL_C}
+
+setdefs.h: gensetdefs ${OBJS}
+	@echo Generating kernel linker sets
+	@./gensetdefs ${OBJS} >setdefs.h
+
+gensetdefs: gensetdefs.o
+	${CC} ${CFLAGS} gensetdefs.o -o $@
+
+gensetdefs.o: ${ALPHA}/alpha/gensetdefs.c
+	${CC} -c ${CFLAGS} ${ALPHA}/alpha/gensetdefs.c
+
+# everything potentially depends on the Makefile since everything potentially
+# depends on the options.  Some things are more dependent on the Makefile for
+# historical reasons.
+machdep.o: Makefile
+
+# the following is necessary because autoconf.o depends on #if GENERIC
+autoconf.o: Makefile
+
+# XXX - may no longer be needed
+locore.o: Makefile
+
+# depends on KDB (cons.o also depends on GENERIC)
+trap.o cons.o: Makefile
+
+# this rule stops ./assym.s in .depend from causing problems
+./assym.s: assym.s
+
+assym.s: genassym
+	./genassym >assym.s
+
+# Some of the defines that genassym outputs may well depend on the
+# value of kernel options.
+genassym.o: ${ALPHA}/alpha/genassym.c Makefile opt_global.h
+	${CC} -c ${CFLAGS} ${PARAM} -UKERNEL ${ALPHA}/alpha/genassym.c
+
+genassym: genassym.o
+	${CC} ${CFLAGS} ${PARAM} genassym.o -o $@
+
+SYSTEM_OBJS+=	__divqu.o __divq.o __divlu.o __divl.o
+SYSTEM_OBJS+=	__remqu.o __remq.o __remlu.o __reml.o
+CLEAN+=	__divqu.S __divq.S __divlu.S __divl.S
+CLEAN+=	__remqu.S __remq.S __remlu.S __reml.S
+
+__divqu.S: ${S}/alpha/alpha/divrem.m4
+	@echo 'building ${.TARGET} from ${.ALLSRC}'
+	@(echo "define(NAME,\`__divqu')define(OP,\`div')define(S,\`false')"; \
+	 echo "define(WORDSIZE,64)"; cat ${.ALLSRC}) | m4 > ${.TARGET}
+
+__divq.S: ${S}/alpha/alpha/divrem.m4
+	@echo 'building ${.TARGET} from ${.ALLSRC}'
+	@(echo "define(NAME,\`__divq')define(OP,\`div')define(S,\`true')"; \
+	 echo "define(WORDSIZE,64)"; cat ${.ALLSRC}) | m4 > ${.TARGET}
+
+__divlu.S: ${S}/alpha/alpha/divrem.m4
+	@echo 'building ${.TARGET} from ${.ALLSRC}'
+	@(echo "define(NAME,\`__divlu')define(OP,\`div')define(S,\`false')"; \
+	 echo "define(WORDSIZE,32)"; cat ${.ALLSRC}) | m4 > ${.TARGET}
+
+__divl.S: ${S}/alpha/alpha/divrem.m4
+	@echo 'building ${.TARGET} from ${.ALLSRC}'
+	@(echo "define(NAME,\`__divl')define(OP,\`div')define(S,\`true')"; \
+	 echo "define(WORDSIZE,32)"; cat ${.ALLSRC}) | m4 > ${.TARGET}
+
+__remqu.S: ${S}/alpha/alpha/divrem.m4
+	@echo 'building ${.TARGET} from ${.ALLSRC}'
+	@(echo "define(NAME,\`__remqu')define(OP,\`rem')define(S,\`false')"; \
+	 echo "define(WORDSIZE,64)"; cat ${.ALLSRC}) | m4 > ${.TARGET}
+
+__remq.S: ${S}/alpha/alpha/divrem.m4
+	@echo 'building ${.TARGET} from ${.ALLSRC}'
+	@(echo "define(NAME,\`__remq')define(OP,\`rem')define(S,\`true')"; \
+	 echo "define(WORDSIZE,64)"; cat ${.ALLSRC}) | m4 > ${.TARGET}
+
+__remlu.S: ${S}/alpha/alpha/divrem.m4
+	@echo 'building ${.TARGET} from ${.ALLSRC}'
+	@(echo "define(NAME,\`__remlu')define(OP,\`rem')define(S,\`false')"; \
+	 echo "define(WORDSIZE,32)"; cat ${.ALLSRC}) | m4 > ${.TARGET}
+
+__reml.S: ${S}/alpha/alpha/divrem.m4
+	@echo 'building ${.TARGET} from ${.ALLSRC}'
+	@(echo "define(NAME,\`__reml')define(OP,\`rem')define(S,\`true')"; \
+	 echo "define(WORDSIZE,32)"; cat ${.ALLSRC}) | m4 > ${.TARGET}
+
+
+${OBJS}: opt_global.h
+
+# XXX this assumes that the options for NORMAL_C* and DRIVER_C* are identical.
+depend: assym.s param.c vnode_if.h ${BEFORE_DEPEND}
+	rm -f .newdep
+	mkdep -a -f .newdep ${COPTS} ${CFILES} ${SYSTEM_CFILES}
+	mkdep -a -f .newdep ${COPTS} ${PARAM} -UKERNEL ${ALPHA}/alpha/genassym.c
+	MKDEP_CPP="${CC} -E -x assembler-with-cpp" ; export MKDEP_CPP ; \
+	mkdep -a -f .newdep -DLOCORE ${COPTS} ${SFILES} ${SYSTEM_SFILES}
+	rm -f .depend
+	mv -f .newdep .depend
+
+cleandepend:
+	rm -f .depend
+
+links:
+	egrep '#if' ${CFILES:Nswapkernel.c} | sed -f $S/conf/defines | \
+	  sed -e 's/:.*//' -e 's/\.c/.o/' | sort -u > dontlink
+	echo ${CFILES:Nswapkernel.c} | 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 $S/kern/Makefile for tags"
+
+install:
+	@if [ ! -f kernel ] ; then \
+		echo "You must first build your kernel before trying to install." ; \
+		exit 1 ; \
+	fi
+.if exists(${DESTDIR}/kernel)
+	chflags noschg ${DESTDIR}/kernel
+	mv ${DESTDIR}/kernel ${DESTDIR}/kernel.old
+.endif
+	PATH=$${PATH}:/sbin:/usr/sbin; \
+	if [ `sysctl -n kern.bootfile` = ${DESTDIR}/kernel ] ; then \
+		sysctl -w kern.bootfile=${DESTDIR}/kernel.old ; \
+		if [ -f /var/db/kvm_kernel.db ] ; then \
+			mv -f /var/db/kvm_kernel.db /var/db/kvm_kernel.old.db ; \
+		fi \
+	fi
+	install -c -m 555 -o root -g wheel -fschg kernel ${DESTDIR}/
+
+ioconf.o: ioconf.c $S/sys/param.h $S/sys/buf.h
+	${CC} -c ${CFLAGS} ioconf.c
+
+param.c: $S/conf/param.c
+	-rm -f param.c
+	cp $S/conf/param.c .
+
+param.o: param.c Makefile
+	${CC} -c ${CFLAGS} ${PARAM} param.c
+
+vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP}
+	sh $S/conf/newvers.sh ${KERN_IDENT} ${IDENT}
+	${CC} ${CFLAGS} -c vers.c
+
+vnode_if.c: $S/kern/vnode_if.sh $S/kern/vnode_if.src
+	sh $S/kern/vnode_if.sh $S/kern/vnode_if.src
+vnode_if.h: $S/kern/vnode_if.sh $S/kern/vnode_if.src
+	sh $S/kern/vnode_if.sh $S/kern/vnode_if.src
+
+.include <bsd.kern.mk>
+
+%RULES
+
+# DO NOT DELETE THIS LINE -- make depend uses it
diff --git a/sys/conf/files b/sys/conf/files
index 74e8553..bc9694b 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -1,6 +1,6 @@
 aicasm				optional	ahc	device-driver	   \
 	dependency 	"$S/dev/aic7xxx/*.[chyl]"			   \
-	compile-with	"make -f $S/dev/aic7xxx/Makefile MAKESRCPATH=$S/dev/aic7xxx" \
+	compile-with	"${MAKE} -f $S/dev/aic7xxx/Makefile MAKESRCPATH=$S/dev/aic7xxx" \
 	no-obj no-implicit-rule						   \
 	clean		"aicasm"
 #
@@ -86,7 +86,7 @@ kern/inflate.c		optional gzip
 kern/init_main.c	standard
 kern/init_sysent.c	standard
 kern/init_sysvec.c	standard
-kern/kern_intr.c	standard
+#kern/kern_intr.c	standard
 kern/kern_module.c	standard
 kern/kern_linker.c	standard
 kern/link_aout.c	standard
@@ -403,6 +403,7 @@ pci/pci_compat.c	optional pci
 pci/pcisupport.c	optional pci
 pci/tek390.c		optional amd device-driver
 pci/wdc_p.c		optional wdc device-driver
+pci/simos.c		optional simos device-driver
 pci/xrpu.c		optional xrpu device-driver
 posix4/posix4_mib.c	standard
 posix4/p1003_1b.c	standard
diff --git a/sys/conf/files.alpha b/sys/conf/files.alpha
new file mode 100644
index 0000000..04e5410
--- /dev/null
+++ b/sys/conf/files.alpha
@@ -0,0 +1,80 @@
+# This file tells config what files go into building a kernel,
+# files marked standard are always included.
+#
+#	$Id$
+#
+# The long compile-with and dependency lines are required because of
+# limitations in config: backslash-newline doesn't work in strings, and
+# dependency lines other than the first are silently ignored.
+#
+#
+font8x16.o			optional	std8x16font		\
+	compile-with	"uudecode < /usr/share/syscons/fonts/${STD8X16FONT}-8x16.fnt && file2c 'unsigned char font_16[16*256] = {' '};' < ${STD8X16FONT}-8x16 > font8x16.c && ${CC} -c ${CFLAGS} font8x16.c" \
+	no-implicit-rule before-depend \
+	clean		"${STD8X16FONT}-8x16 font8x16.c" 
+
+#
+alpha/alpha/autoconf.c		standard	device-driver
+alpha/alpha/cpuconf.c		standard
+alpha/alpha/dec_kn8ae.c		optional	dec_kn8ae
+alpha/alpha/mountroot.c		optional	slice
+alpha/alpha/ipl_funcs.c		standard
+alpha/alpha/pal.s		standard
+alpha/alpha/cons.c		standard
+alpha/alpha/prom.c		standard
+alpha/alpha/prom_disp.s		standard
+alpha/alpha/db_disasm.c		optional	ddb
+alpha/alpha/db_interface.c	optional	ddb
+alpha/alpha/db_trace.c		optional	ddb
+alpha/alpha/exception.s		standard
+alpha/alpha/in_cksum.c		optional	inet
+# locore.s needs to be handled in Makefile to put it first.  Otherwise it's
+# now normal.
+# alpha/alpha/locore.s		standard
+alpha/alpha/machdep.c		standard
+alpha/alpha/math_emulate.c	optional	math_emulate
+alpha/alpha/mem.c		standard
+alpha/alpha/mp_machdep.c	optional	smp
+alpha/alpha/perfmon.c		optional	perfmon	profiling-routine
+alpha/alpha/perfmon.c		optional	perfmon
+alpha/alpha/pmap.c		standard
+alpha/alpha/procfs_machdep.c	standard
+alpha/alpha/simplelock.s	optional	smp
+alpha/alpha/support.s		standard
+alpha/alpha/swtch.s		standard
+alpha/alpha/sys_machdep.c	standard
+alpha/alpha/trap.c		standard
+alpha/alpha/interrupt.c		standard
+alpha/alpha/userconfig.c	optional	userconfig
+alpha/alpha/vm_machdep.c	standard
+alpha/alpha/clock.c		standard
+alpha/alpha/diskslice_machdep.c	standard
+alpha/tlsb/tlsb.c		optional	tlsb
+alpha/tlsb/gbus.c		optional	gbus
+alpha/tlsb/kftxx.c		optional	kft
+alpha/tlsb/mcclock_tlsb.c	optional	gbus
+alpha/tlsb/zs_tlsb.c		optional	gbus
+alpha/tlsb/dwlpx.c		optional	dwlpx
+dev/dec/mcclock.c		optional	gbus
+alpha/pci/pcibus.c		optional	pci
+kern/subr_bus.c			standard
+libkern/bcd.c			standard
+libkern/bcmp.c			standard
+libkern/ffs.c			standard
+libkern/inet_ntoa.c		standard
+libkern/index.c			standard
+libkern/mcount.c		optional	profiling-routine
+libkern/qsort.c			standard
+libkern/random.c		standard
+libkern/scanc.c			standard
+libkern/skpc.c			standard
+libkern/strcat.c		standard
+libkern/strcmp.c		standard
+libkern/strcpy.c		standard
+libkern/strlen.c		standard
+libkern/strncmp.c		standard
+libkern/strncpy.c		standard
+libkern/alpha/htonl.S		standard
+libkern/alpha/htons.S		standard
+libkern/alpha/ntohl.S		standard
+libkern/alpha/ntohs.S		standard
diff --git a/sys/conf/options.alpha b/sys/conf/options.alpha
new file mode 100644
index 0000000..666e7f7
--- /dev/null
+++ b/sys/conf/options.alpha
@@ -0,0 +1,18 @@
+#	$Id$
+
+EV5			opt_global.h
+DEC_KN8AE		opt_cpu.h
+
+ATAPI			opt_atapi.h
+ATAPI_STATIC		opt_atapi.h
+
+CMD640			opt_wd.h
+
+SHOW_BUSYBUFS
+PANIC_REBOOT_WAIT_TIME	opt_panic.h
+
+AHC_TAGENABLE		opt_aic7xxx.h
+AHC_SCBPAGING_ENABLE	opt_aic7xxx.h
+AHC_ALLOW_MEMIO		opt_aic7xxx.h
+AHC_SHARE_SCBS		opt_aic7xxx.h
+