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# Makefile for Mach 4 kernel directory
# Copyright 1997, 1999, 2004, 2006 Free Software Foundation, Inc.
#
# Permission to use, copy, modify and distribute this software and its
# documentation is hereby granted, provided that both the copyright
# notice and this permission notice appear in all copies of the
# software, derivative works or modified versions, and any portions
# thereof, and that both notices appear in supporting documentation.
#
# THE FREE SOFTWARE FOUNDATION ALLOWS FREE USE OF THIS SOFTWARE IN ITS
# "AS IS" CONDITION.  THE FREE SOFTWARE FOUNDATION DISCLAIMS ANY
# LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE
# USE OF THIS SOFTWARE.


#
# configure's findings.
#

srcdir = @srcdir@
version = @PACKAGE_VERSION@

prefix = @prefix@
exec_prefix = @exec_prefix@
bindir = @bindir@
bootdir = $(exec_prefix)/boot
datadir = @datadir@
includedir = @includedir@
infodir = @infodir@
libdir = @libdir@
libexecdir = @libexecdir@
localstatedir = @localstatedir@
mandir = @mandir@
oldincludedir = @oldincludedir@
sbindir = @sbindir@
sharedstatedir = @sharedstatedir@
sysconfdir = @sysconfdir@

systype = @systype@

top_builddir = ./

DEFS = @DEFS@

#
# Default target
#

all:

# Detect if the user wants KDB
ifeq ($(findstring -DMACH_KDB,$(DEFS)),-DMACH_KDB)
enable_kdb=yes
else
enable_kdb=no
endif

# Detect if the user wants KMSG
ifeq ($(findstring -DMACH_KMSG,$(DEFS)),-DMACH_KMSG)
enable_kmsg=yes
else
enable_kmsg=no
endif

# All the possible architectures
all-archs = i386 linux

all-archs-subdirs = $(patsubst %,$(srcdir)/%/Subdirs,$(all-archs))
all-archs-files = $(patsubst %,$(srcdir)/%/Files,$(all-archs))
all-archs-configures = $(patsubst %,$(srcdir)/%/configure,$(all-archs))

# Files distributed from the top level directory:
topfiles = ChangeLog ChangeLog.0 ChangeLog.00 Drivers.macros Makefile.in \
	README INSTALL config.guess config.sub configure configure.in \
	gensym.awk install-sh version.c.in NEWS aclocal.m4 COPYING

# All the source in each directory.

# Old crud from a previous configure scheme
bogus-files = bootstrap_symbols.h cpus.h fast_tas.h hw_footprint.h \
	power_save.h simple_clock.h stat_time.h xpr_debug.h \
	$(patsubst %,mach_%.h,assert counters debug fixpri host ipc_compat \
	ipc_debug ipc_test kdb ldebug lock_mon machine_routines mp_debug \
	pagemap pcsample ttd vm_debug) \
	$(patsubst %,norma_%.h,device ether ipc task vm)

# Generic code for various hardware drivers
chips-files = busses.c busses.h

# Icky kernel debugger
ddb-cfiles = $(addprefix db_,$(ddb-names))
ddb-names = access.c aout.c break.c command.c cond.c examine.c expr.c \
	ext_symtab.c input.c lex.c macro.c mp.c output.c print.c run.c \
	sym.c task_thread.c trap.c variables.c watch.c write_cmd.c
ddb-files = $(ddb-cfiles) $(patsubst %,db_%.h, \
	access break command expr lex output print run sym task_thread \
	variables watch) nlist.h stab.h tr.h

# Device support interfaces
device-files = blkio.c chario.c cirbuf.c cons.c dev_lookup.c dev_name.c \
	dev_pager.c device_init.c dk_label.c ds_routines.c net_io.c subrs.c \
	buf.h cirbuf.h conf.h cons.h dev_hdr.h dev_master.h device_port.h \
	device_types_kernel.h ds_routines.h errno.h if_ether.h if_hdr.h \
	io_req.h kmsg.c kmsg.h net_io.h param.h tty.h memory_object_reply.cli \
	dev_forward.defs device_pager.srv device_reply.cli device.srv

# IPC implementation
ipc-cfiles = $(addprefix ipc_,$(ipc-names)) \
		mach_msg.c mach_port.c mach_rpc.c mach_debug.c fipc.c
ipc-names = entry.c hash.c init.c kmsg.c marequest.c mqueue.c \
	notify.c object.c port.c pset.c right.c space.c splay.c \
	table.c target.c thread.c
ipc-files = $(ipc-cfiles) mach_port.srv fipc.h port.h mach_msg.h \
	$(patsubst %,ipc_%.h, \
	entry hash init kmsg kmsg_queue machdep marequest mqueue notify \
	object port pset right space splay table target thread types)

# "kernel" implementation (tasks, threads, trivia, etc.)
kern-cfiles = act.c ast.c bootstrap.c counters.c debug.c eventcount.c \
	exception.c host.c ipc_host.c ipc_kobject.c ipc_mig.c ipc_sched.c \
	ipc_tt.c kalloc.c lock.c lock_mon.c mach_clock.c mach_factor.c \
	machine.c pc_sample.c printf.c priority.c processor.c profile.c \
	queue.c sched_prim.c startup.c strings.c syscall_emulation.c \
	syscall_subr.c syscall_sw.c task.c thread.c thread_swap.c \
	time_stamp.c timer.c xpr.c zalloc.c elf-load.c boot_script.c
kern-files = $(kern-cfiles) \
	act.h assert.h ast.h compat_xxx_defs.h counters.h cpu_number.h \
	debug.h eventcount.h host.h ipc_host.h ipc_kobject.h ipc_sched.h \
	ipc_tt.h kalloc.h kern_types.h lock.h mach_param.h macro_help.h \
	pc_sample.h processor.h queue.h refcount.h sched.h sched_prim.h \
	shuttle.h strings.h syscall_emulation.h syscall_subr.h syscall_sw.h \
	task.h thread.h thread_swap.h time_out.h time_stamp.h timer.h xpr.h \
	zalloc.h boot_script.h \
	mach.srv mach4.srv mach_debug.srv mach_host.srv

# Still more trivia
util-cfiles = putchar.c puts.c
util-files = $(util-cfiles)

# Virtual memory implementation
vm-cfiles = $(addprefix vm_,$(vm-names)) memory_object.c
vm-names = debug.c external.c fault.c init.c kern.c map.c \
	object.c pageout.c resident.c user.c
vm-files = $(vm-cfiles) memory_object_default.cli memory_object_user.cli \
	memory_object.h pmap.h $(patsubst %,vm_%.h, \
	external fault kern map object page pageout user)

# Documentation
doc-files = Makefile.in fdl.texi gpl.texi mach.texi

# Debian packaging
debian-files = changelog control copyright README.Debian rules postinst prerm


# Object files that go into the kernel image.

# Basic kernel source for Mach
objfiles := $(subst .c,.o,$(ipc-cfiles) $(kern-cfiles) \
			  $(util-cfiles) $(vm-cfiles))
vpath %.c $(srcdir)/ipc $(srcdir)/kern $(srcdir)/util $(srcdir)/vm

# These device support files are always needed; the others are needed only
# if particular drivers want the routines.
# XXX functions in device/subrs.c should each be moved elsewhere
objfiles += cons.o dev_lookup.o dev_name.o dev_pager.o device_init.o \
	ds_routines.o subrs.o net_io.o blkio.o chario.o
ifeq ($(enable_kmsg),yes)
objfiles += kmsg.o
endif
vpath %.c $(srcdir)/device

# DDB support -- eventually to die.  Please.
objfiles += $(subst .c,.o,$(ddb-cfiles))
vpath %.c $(srcdir)/ddb

# Version number
objfiles += version.o


# Header files installed for user use
device-headers= $(addprefix device/,audio_status.h bpf.h device.defs \
		device_reply.defs device_request.defs device_types.defs \
		device_types.h disk_status.h net_status.h tape_status.h \
		tty_status.h)
mach-headers= $(addprefix mach/, bootstrap.defs default_pager.defs \
		default_pager_helper.defs default_pager_types.defs \
		exc.defs mach.defs mach4.defs mach_host.defs mach_norma.defs \
		mach_port.defs mach_types.defs memory_object.defs \
		memory_object_default.defs norma_task.defs notify.defs \
		std_types.defs \
		alert.h boolean.h boot.h default_pager_types.h exception.h \
		host_info.h kern_return.h mach_param.h mach_types.h \
		machine.h macro_help.h memory_object.h message.h mig_errors.h \
		msg_type.h multiboot.h norma_special_ports.h notify.h \
		pc_sample.h policy.h port.h processor_info.h \
		profil.h profilparam.h rpc.h std_types.h syscall_sw.h \
		task_info.h task_special_ports.h thread_info.h \
		thread_special_ports.h thread_status.h thread_switch.h \
		time_value.h version.h vm_attributes.h vm_inherit.h \
		vm_param.h vm_prot.h vm_statistics.h inline.h)
mach-exec-headers= $(addprefix mach/exec/, a.out.h elf.h exec.h)
mach-debug-headers:= $(addprefix mach_debug/, hash_info.h ipc_info.h \
		mach_debug.defs mach_debug_types.defs mach_debug_types.h \
		pc_info.h vm_info.h zone_info.h)

installed-headers:= $(device-headers) $(mach-headers) $(mach-exec-headers)

# Other headers for the distribution.  We don't install these, because the
# GNU C library has correct versions for users to use.
other-sys-headers := types.h time.h reboot.h ioctl.h
other-mach-headers := mig_support.h mach_traps.h error.h
other-headers := alloca.h


# Automatically generated source

# User stubs
objfiles += memory_object_user_user.o memory_object_default_user.o \
	device_reply_user.o memory_object_reply_user.o

# vm_user.o fits the pattern, but is not actually a MiG-related file.
users = $(filter-out vm_user.o,$(filter %_user.o,$(objfiles)))

# Server stubs
objfiles += device_server.o device_pager_server.o mach_port_server.o \
	mach_server.o mach4_server.o mach_debug_server.o mach_host_server.o

servers = $(filter %_server.o,$(objfiles))

# Where to find the relevant Mig source files
vpath %.cli $(srcdir)/vm $(srcdir)/device
vpath %.srv $(srcdir)/device $(srcdir)/ipc $(srcdir)/kern


#
# Rules.
#

all: kernel
	$(MAKE) -C $(systype) $@

# Better than nothing...
check: kernel
	$(MBCHK) $<
	$(MAKE) -C $(systype) $@

clean:
	$(MAKE) -C $(systype) $@
	rm -f clib-routines.o kernel.o kernel kernel-undef kernel-undef-bad
	rm -f $(objfiles) $(subst .o,.d,$(objfiles))
	rm -f *.symc *.symc.o *_user.c *_server.c *.h
	rm -f *.migs_d *.migsh_d *.migu_d *.miguh_d

distclean: clean
	$(MAKE) -C $(systype) $@
	rm -f Makefile Makerules version.c doc/Makefile machine mach/machine
	rm -f config.status config.log

mostlyclean: distclean
	$(MAKE) -C $(systype) $@

maintainer-clean: mostlyclean
	$(MAKE) -C $(systype) $@
	rm -f $(srcdir)/configure $(all-archs-configures)

$(systype)/%: FORCE
	$(MAKE) -C $(systype) $(@F)
FORCE:


#
# Kernel Image
#

# This is the list of routines we decide is OK to steal from the C library.
clib-routines := memcpy memmove memset bcopy bzero \
		 strchr strstr strsep strpbrk strtok \
		 htonl htons ntohl ntohs \
		 etext edata end # actually ld magic, not libc

#kernel.a: $(objfiles)
#	@rm -f $@
#	$(AR) cq $@ $^
kernel.o: $(objfiles) $(systype)/sysdep.a # kernel.a
	$(LD) -r -o $@ $(kernel-objfiles-prepend) \
	  $(filter-out $(kernel-objfiles-prepend),$^)
kernel-undef: kernel.o
	$(NM) -u $< | sed 's/  *U  *//;s/^_*//' | sort -u > $@
kernel-undef-bad: kernel-undef Makefile
	sed '$(foreach r,$(clib-routines),/^$r$$/d;)' $< > $@
clib-routines.o: kernel-undef kernel-undef-bad
	if test -s kernel-undef-bad; \
	then cat kernel-undef-bad; exit 2; else true; fi
	$(CC) -nostdlib -nostartfiles -r -static \
	      -o $@ \
	      `sed 's/^/-Wl,-u,/' $<` -x c /dev/null -lc
kernel: kernel.o clib-routines.o
	$(LD) $(LDFLAGS) $(LDFLAGS-$@) -o $@ $^


#
# Installation
#

installed-headers-names = $(addprefix $(includedir)/,$(installed-headers))
install: install-headers install-kernel
	make -C $(systype) $@

$(installed-headers-names): $(includedir)/%: $(srcdir)/include/%
	$(INSTALL_DATA) $< $@

install-headers: mkheaderdirs $(installed-headers-names)
	ln -sfn $(systype) $(includedir)/mach/machine
	make -C $(systype) $@

install-kernel: kernel mkkerneldirs
	$(INSTALL_PROGRAM) kernel $(bootdir)/gnumach
	make -C $(systype) $@

mkheaderdirs:
	mkdir -p $(includedir) $(includedir)/device $(includedir)/mach/exec

mkkerneldirs:
	mkdir -p $(bootdir)


#
# Building the distribution
#

dist:
	rm -rf gnumach-$(version)
	mkdir gnumach-$(version)
	# Directories
	mkdir gnumach-$(version)/{bogus,chips,ddb,device,ipc,kern,scsi,util,vm,include}
	mkdir gnumach-$(version)/{doc,debian}
	mkdir gnumach-$(version)/include/{mach,device,mach_debug,sys}
	mkdir gnumach-$(version)/include/mach/exec
	for dir in `cat $(all-archs-subdirs)`; do \
		mkdir -p gnumach-$(version)/$$dir; \
	done
	# Files
	cp $(addprefix $(srcdir)/,$(topfiles)) gnumach-$(version)
	cp $(addprefix $(srcdir)/bogus/,$(bogus-files)) gnumach-$(version)/bogus
	cp $(addprefix $(srcdir)/chips/,$(chips-files)) gnumach-$(version)/chips
	cp $(addprefix $(srcdir)/ddb/,$(ddb-files)) gnumach-$(version)/ddb
	cp $(addprefix $(srcdir)/device/,$(device-files)) gnumach-$(version)/device
	cp $(addprefix $(srcdir)/ipc/,$(ipc-files)) gnumach-$(version)/ipc
	cp $(addprefix $(srcdir)/kern/,$(kern-files)) gnumach-$(version)/kern
	cp $(addprefix $(srcdir)/util/,$(util-files)) gnumach-$(version)/util
	cp $(addprefix $(srcdir)/vm/,$(vm-files)) gnumach-$(version)/vm
	cp $(addprefix $(srcdir)/include/,$(mach-headers)) gnumach-$(version)/include/mach
	cp $(addprefix $(srcdir)/include/,$(device-headers)) gnumach-$(version)/include/device
	cp $(addprefix $(srcdir)/include/,$(mach-debug-headers)) gnumach-$(version)/include/mach_debug
	cp $(addprefix $(srcdir)/include/,$(mach-exec-headers)) gnumach-$(version)/include/mach/exec
	cp $(addprefix $(srcdir)/include/,$(other-headers)) gnumach-$(version)/include
	cp $(addprefix $(srcdir)/include/sys/,$(other-sys-headers)) gnumach-$(version)/include/sys
	cp $(addprefix $(srcdir)/include/mach/,$(other-mach-headers)) gnumach-$(version)/include/mach
	cp $(addprefix $(srcdir)/doc/,$(doc-files)) gnumach-$(version)/doc
	cp $(addprefix $(srcdir)/debian/,$(debian-files)) gnumach-$(version)/debian
	# Files in arch dirs
	for file in `cat $(all-archs-files)`; do \
		cp $(srcdir)/$$file gnumach-$(version)/`dirname $$file`; \
	done
	chmod -R u=rwX,og=rX gnumach-$(version)
	tar cf - gnumach-$(version) | gzip -9vc > gnumach-$(version).tar.gz
	rm -rf gnumach-$(version)


#
# Autoconf support
#
$(srcdir)/configure: $(srcdir)/configure.in
	cd $(srcdir) && autoconf
$(srcdir)/config.h.in: $(srcdir)/acconfig.h
	cd $(srcdir) && autoheader

Makefile: $(srcdir)/Makefile.in config.status
	./config.status $@
config.h: stamp-configh ;
stamp-configh: $(srcdir)/config.h.in config.status
	./config.status
	touch $@

config.status: $(srcdir)/configure
	./config.status --recheck

vpath %.in $(srcdir)
vpath configure $(srcdir)


#
# Makerules
#

include $(top_builddir)/Makerules