#   Makefile.SimOS.mips, Copyright  (c) by G. Fankhauser,
#   Swiss Federal Institute of Technology,
#   Computer Engineering and Networks Laboratory.
#
#   TOPSY -- A Teachable Operating System.
#            Implementation of a tiny and simple
#            micro kernel for teaching purposes.
#
#   For further information, please visit http://www.tik.ee.ethz.ch/~topsy
#
#   This software is provided under the terms of the GNU General Public Licence.
#   A full copy of the GNU GPL is provided in the file COPYING found in the 
#   development root of Topsy.
#
#	
#	File:                  $Source: /usr/drwho/vault/cvs/topsy/Topsy/Makefiles/Makefile.SimOS.mips,v $
# 	Author(s):             
# 	Affiliation:           ETH Zuerich, TIK
# 	Version:               $Revision: 1.5 $
# 	Creation Date:         
# 	Last Date of Change:   $Date: 1999/12/13 21:48:29 $      by: $Author: ruf $
#	
#	
#	$Log: Makefile.SimOS.mips,v $
#	Revision 1.5  1999/12/13 21:48:29  ruf
#	GNU General Public Licence Update
#	
#	Revision 1.4  1999/11/01 09:44:37  gfa
#	*** empty log message ***
#	
#	Revision 1.3  1999/10/31 19:01:25  gfa
#	*** empty log message ***
#
#	Revision 1.2  1999/10/31 14:42:47  jeker
#	first fixes for SimOS
#
#	Revision 1.1  1999/10/23 19:07:10  jeker
#	added Makefile.SimOS.mips and did some code cleanup
#
#
#

###############################################################################
# machine dependent subdirectories for each module and folder for object files
ARCH=mips

# make procedures for the outside
all: version kernel user bootlink 


# include default stuff
include Makefiles/Makefile.default
include Makefiles/Makefile.user

# host platform (Filename Platform.ARCH.PLATFORM)
include Makefiles/Platform.$(ARCH).std

# address of memory layout description after loading
# needed by both kernel startup code (which passes the pointer to the 
# memory manager) and the bootlinker
SEGMAP=800FFF00
USERINKERNELAT=80021000
HEXSEGMAP=0x$(SEGMAP)
SEGMAPDEFINE=-DSEGMAP=$(HEXSEGMAP)

# compiler defines
DEBUG=-g
CCDEBUG=$(DEBUG) -ggdb
CFLAGS=-G 0 $(CCDEBUG) -Wall
INC=$(addprefix -I, $(ALLDIRS))
DEFS = -DDEBUG_LEVEL=2 -DSIMOS
#OPTIMIZE = -O2 -fno-strict-aliasing # for gcc 2.95 ...
OPTIMIZE = -O2
LDFLAGS = -N $(DEBUG)


# first the kernel architecture depending files by module
STFILESARCH=start.S StartMeFirst.c
TOFILESARCH=SyscallMsg.S SupportAsm.S Exception.c PrintReg.c
MMFILESARCH=MMDirectMapping.c MMError.c tlb.S
TMFILESARCH=TMClock.c TMError.c TMHal.c TMHalAsm.S
IOFILESARCH=IOHal.c

# now the drivers, this is a temporary solution, will be changed in near future
IOFILESDRIVERS= Loopback.c SimOSConsole.c

# make depending files
LINKSCRIPT=link.$(ARCH).simos.scr
KERNEL_LINKSCRIPT=Boot/$(ARCH)/$(LINKSCRIPT)
USER_LINKSCRIPT=User/$(LINKSCRIPT)

######################### KERNEL STUFF #########################
# this builds the Topsy mips kernel

kernel: kernel.ecoff kernel.bin

bootlinking: BootLinker symbols

kernel.ecoff: $(REALKERNELOBJS) $(KERNEL_LINKSCRIPT)
	$(LD) $(LDFLAGS) -o kernel.ecoff $(REALKERNELOBJS) \
						-T $(KERNEL_LINKSCRIPT)

kernel.bin: $(REALKERNELOBJS) $(KERNEL_LINKSCRIPT)
	$(LD) $(LDFLAGS) -oformat binary -o kernel.bin $(REALKERNELOBJS) \
						-T $(KERNEL_LINKSCRIPT)
# something special for the TMClock.c file
${OBJ}/$(TM)/$(ARCH)/TMClock.o: $(OBJ)/%.o: %.c $(OBJ)
	$(CC) $(CFLAGS) $(INC) $(DEFS)  $(SEGMAPDEFINE) -c $< -o $@

# user and kernel need to be joined for download
bootlink: kernel user bootlinker
	$(SIZE) -Ax kernel.ecoff > kSize
	$(SIZE) -Ax user.ecoff > uSize
	(cd Boot/$(ARCH); \
	./BootLinker ../../kSize ../../uSize ../../user.srec $(SEGMAP) \
						       $(USERINKERNELAT); \
	mv segmap.bin ../.. )
	$(OBJCOPY) kernel.ecoff \
	--adjust-section-vma=".user"=+0x$(USERINKERNELAT) \
	--add-section=".user"=user.bin \
	--adjust-section-vma=".segmap"=+0x$(SEGMAP) \
	--add-section=".segmap"=segmap.bin \
	--target=ecoff-bigmips topsy.ecoff
	$(OBJCOPY) --target=srec topsy.ecoff topsy.srec	

# this is the tool which generates the segmap
bootlinker: 
	( cd Boot/$(ARCH); $(LCC) -o BootLinker BootLinker.c )
	
# symbols for simulator
symbols:
	$(NM) kernel.ecoff > kernel.symbols
	$(NM) user.ecoff > user.symbols
	$(NM) kernel.ecoff > topsy.symbols
	$(NM) user.ecoff >> topsy.symbols


########################## USER STUFF ##########################
# this builds the Topsy user stuff

user: user.ecoff user.bin

# shell and user targets 
# (simulator, debugger, and linker need different obj formats)
user.bin: $(REALOBJS) $(SYSCALL) $(USER_LINKSCRIPT)
	$(LD) $(LDFLAGS) -o user.srec $(REALOBJS) $(SYSCALL) \
	      -T $(USER_LINKSCRIPT)
	$(LD) $(LDFLAGS) -o user.bin -oformat binary $(REALOBJS) \
	      $(SYSCALL) -T $(USER_LINKSCRIPT)

user.ecoff: $(REALOBJS) $(SYSCALL) $(USER_LINKSCRIPT)
	$(LD) $(LDFLAGS) -o user.ecoff -oformat ecoff-bigmips \
	      $(REALOBJS) $(SYSCALL) -T $(USER_LINKSCRIPT)