#
# Copyright (c) 1995-1996, 1998 University of Utah and the Flux Group.
# All rights reserved.
# 
# This file is part of the Flux OSKit.  The OSKit is free software, also known
# as "open source;" you can redistribute it and/or modify it under the terms
# of the GNU General Public License (GPL), version 2, as published by the Free
# Software Foundation (FSF).  To explore alternate licensing terms, contact
# the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
# 
# The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GPL for more details.  You should have
# received a copy of the GPL along with the OSKit; see the file COPYING.  If
# not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
#

# This is a generic set of rules to build DOS executables (.exe files).
# TARGET must be set to the executable filename without the .exe suffix.
# Assumes the build tools support the i386msdos format and emulation.
# Currently also assumes we're using ELF for object files and such.
#
ifndef _oskit_makerules_i386_exe_
_oskit_makerules_i386_exe_ = yes


all: $(TARGET).exe

CLEAN_FILES += $(TARGET) $(TARGET).exe


include $(OSKIT_SRCDIR)/Makerules


# Make sure crt0 gets put is at the very beginning,
# and crtn gets put at the very end.
OBJFILES := i16_crt0.o $(filter-out i16_crt0.o crtn.o,$(OBJFILES)) crtn.o


# First link the program as an ELF executable,
# but with the proper MS-DOS memory layout;
# then use objcopy to transform the result into an MSDOS executable.
# This approach has three advantages:
#	* It avoids some bugs in the MSDOS BFD backend.
#	* It allows some ELF features unsupported
#	  by the MSDOS backend to be used.
#	* It provides with a convenient nm-able and objdump-able
#	  version of the executable, for debugging purposes.

$(TARGET): $(OBJFILES)
	$(LD) $(LDFLAGS) $(OSKIT_LDFLAGS) \
		-m i386msdos -oformat elf32-i386 \
		-o $@ $(OBJFILES) $(LDLIBS)

$(TARGET).exe: $(TARGET)
	$(OBJCOPY) -O msdos $< $@


install: $(INSTALL_BINDIR)/$(TARGET).exe


endif