############################################################################
# arch/z80/src/Makefile
#
#   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
#    distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
#    used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################

############################################################################
# Makefile fragments

-include $(TOPDIR)/Make.defs
-include chip/Make.defs

############################################################################
# Tools

MKDEP 		= $(TOPDIR)/tools/mkdeps.sh

# CFLAGS, CPPFLAGS, ASFLAGS, LDFLAGS are set in $(TOPDIR)/Make.defs

CFLAGS		+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(TOPDIR)/sched
CPPFLAGS	+= -D__ASSEMBLY__

############################################################################
# Files and directories

# There should be one head source (.asm file)

HEAD_AOBJ	= $(HEAD_ASRC:$(ASMEXT)=$(OBJEXT))

# Assembly sources and objects

ASRCS		= $(CHIP_ASRCS) $(CMN_ASRCS)
AOBJS		= $(ASRCS:$(ASMEXT)=$(OBJEXT))

# C sources and objects

CSRCS		= $(CHIP_CSRCS) $(CMN_CSRCS)
COBJS		= $(CSRCS:.c=$(OBJEXT))

# All sources and objcts

SRCS		= $(ASRCS) $(CSRCS)
OBJS		= $(AOBJS) $(COBJS)

# Sources that can have dependencies (no .asm files)

DEPSRCS		= $(CSRCS)

# Directories

ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
BOARDDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src/board

VPATH		= chip:common

# Libraries

LIBGCC		= ${shell $(CC) -print-libgcc-file-name}

# Supports dynamic sizing of HEAP.  This adds up the size of each memory area.
# This does not account for the alignment of the _CODE area to 0x0100 (hence
# the fudge factor 196 is added).

HEAP_BASE	= ${shell \
		if [ -e pass1.map ]; then \
			list=`cat pass1.map | grep "SIZE" | sed -e "s/\t//g" | cut -d' ' -f2`; \
			unset result; \
			first=yes; \
			for size in $${list}; do \
				if [ "$${size}" != "0000" ]; then \
					if [ -z "$$first" ]; then \
						result="$${result} + 0x$${size}"; \
					else \
						result="(0x$${size}"; \
						unset first; \
					fi; \
				fi; \
			done; \
			echo "$${result} + 196)"; \
		else \
			echo "(UP_HEAP1_END - 8192)"; \
		fi; \
		}

############################################################################
# Targets

all: $(HEAD_AOBJ) libarch$(LIBEXT)

$(AOBJS) $(HEAD_AOBJ): %$(OBJEXT): %$(ASMEXT)
	$(AS) $(ASFLAGS) $@ $<

$(COBJS): %$(OBJEXT): %.c
	$(CC) -c $(CFLAGS) $< -o $@

# This is a kludge to work around some conflicting symbols in libsdcc.liXqueb

$(SDCCLIBDIR)/myz80.lib: $(SDCCLIBDIR)/$(SDCCLIB)
	@cat $(SDCCLIBDIR)/$(SDCCLIB) | \
		grep -v alloc | grep -v free | grep -v printf | \
		grep -v _str  | grep -v _mem | grep -v crt0\.o \
		> myz80.lib
	@sudo mv -f myz80.lib $(SDCCLIBDIR)/myz80.lib

# Create a header file that contains addressing information needed by the code

up_mem.h:
	@echo "#ifndef __ARCH_MEM_H" >up_mem.h
	@echo "#define __ARCH_MEM_H" >>up_mem.h
	@echo "" >>up_mem.h
	@echo "#define UP_STACK_END           $(CONFIG_DRAM_SIZE)" >> up_mem.h
	@echo "#define UP_STACK_BASE          (UP_STACK_END - $(CONFIG_PROC_STACK_SIZE))" >> up_mem.h
	@echo "#define UP_HEAP1_END           UP_STACK_BASE" >> up_mem.h
	@echo "#define UP_HEAP1_BASE          $(HEAP_BASE)" >> up_mem.h
	@echo "" >>up_mem.h
	@echo "#endif /* __ARCH_MEM_H */" >>up_mem.h

asm_mem.h:
	@echo "	UP_COMPILER_OTHER	== 0" > asm_mem.h
	@echo "	UP_COMPILER_SDCC	== 1" >> asm_mem.h
ifeq ($(CC),sdcc)
	@echo "	UP_COMPILER	== 1" >> asm_mem.h
else
	@echo "	UP_COMPILER	== 0" >> asm_mem.h
endif
	@echo "	UP_STACK_END	== ($(CONFIG_DRAM_SIZE) - 1)" >> asm_mem.h
	@echo "	UP_STACK_BASE	== (UP_STACK_END - $(CONFIG_PROC_STACK_SIZE))" >> asm_mem.h
	@echo "	UP_HEAP1_END	== (UP_STACK_END - $(CONFIG_PROC_STACK_SIZE) - 1)" >> asm_mem.h
	@echo "	UP_HEAP1_BASE	== $(HEAP_BASE)" >> asm_mem.h

# Combine all objects in this directory into a library

libarch$(LIBEXT): up_mem.h asm_mem.h $(OBJS)
	@( for obj in $(OBJS) ; do \
		$(AR) $@ $${obj} || \
			{ echo "$(AR) $@ $${obj} FAILED!" ; exit 1 ; } ; \
	done ; )

# This builds the libboard library in the board/ subdirectory 

board/libboard$(LIBEXT):
	$(MAKE) -C board TOPDIR=$(TOPDIR) libboard$(LIBEXT)

# This target builds the final executable

pass1.ihx: up_mem.h asm_mem.h $(SDCCLIBDIR)/myz80.lib $(HEAD_AOBJ) board/libboard$(LIBEXT)
	@echo "--" >pass1.lnk				# Non-interactive
	@echo "-k $(BOARDDIR)" >>pass1.lnk		# Path to board library
	@echo "-k $(SDCCLIBDIR)" >>pass1.lnk		# Path to SDCC z80 library
	@echo "-l libboard$(LIBEXT)" >>pass1.lnk	# Name of board library
	@for LIB in $(LINKLIBS); do \
		echo "-l $(TOPDIR)/$$LIB" >> pass1.lnk ;\
	done
	@echo "-l myz80.lib" >>pass1.lnk		# Name of SDCC z80 library
	@echo "-b START=0" >>pass1.lnk			# Start of START area
	@echo "-b _CODE=256" >>pass1.lnk		# Start of _CODE area
	@echo "-i" >>pass1.lnk				# Intel hex format
	@echo "-x" >>pass1.lnk				# Hexadecimal
	@echo "-m" >>pass1.lnk				# Generate a map file
	@echo "-j" >>pass1.lnk				# Generate a symbol file
	@echo "pass1.ihx" >>pass1.lnk			# Path to head object
	@echo "$(HEAD_AOBJ)" >>pass1.lnk		# Path to head object
	@echo "-e" >>pass1.lnk				# End of script
	$(LD) -f pass1.lnk
	@rm -f up_mem.h asm_mem.h
	@rm -f up_allocateheap$(OBJEXT) $(HEAD_AOBJ) libarch$(LIBEXT)
	@$(MAKE) TOPDIR=$(TOPDIR) libarch$(LIBEXT)
	@$(MAKE) TOPDIR=$(TOPDIR) $(HEAD_AOBJ)

nuttx.ihx: up_mem.h asm_mem.h $(SDCCLIBDIR)/myz80.lib $(HEAD_AOBJ) board/libboard$(LIBEXT)
	@echo "--" >nuttx.lnk				# Non-interactive
	@echo "-k $(BOARDDIR)" >>nuttx.lnk		# Path to board library
	@echo "-k $(SDCCLIBDIR)" >>nuttx.lnk		# Path to SDCC z80 library
	@echo "-l libboard$(LIBEXT)" >>nuttx.lnk	# Name of board library
	@for LIB in $(LINKLIBS); do \
		echo "-l $(TOPDIR)/$$LIB" >> nuttx.lnk ;\
	done
	@echo "-l myz80.lib" >>nuttx.lnk		# Name of SDCC z80 library
	@echo "-b START=0" >>nuttx.lnk			# Start of START area
	@echo "-b _CODE=256" >>nuttx.lnk		# Start of _CODE area
	@echo "-i" >>nuttx.lnk				# Intel hex format
	@echo "-x" >>nuttx.lnk				# Hexadecimal
	@echo "-m" >>nuttx.lnk				# Generate a map file
	@echo "-j" >>nuttx.lnk				# Generate a symbol file
	@echo "nuttx.ihx" >>nuttx.lnk			# Path to head object
	@echo "$(HEAD_AOBJ)" >>nuttx.lnk		# Path to head object
	@echo "-e" >>nuttx.lnk				# End of script
	$(LD) -f nuttx.lnk

nuttx$(EXEEXT): pass1.ihx nuttx.ihx
	@rm -f pass1.*
	packihx nuttx.ihx > $(TOPDIR)/nuttx$(EXEEXT)
	@cp -f nuttx.map $(TOPDIR)/.

# Build dependencies

.depend: Makefile up_mem.h asm_mem.h chip/Make.defs $(DEPSRCS)
	@if [ -e board/Makefile ]; then \
		$(MAKE) -C board TOPDIR=$(TOPDIR) depend ; \
	fi
	$(MKDEP) --dep-path chip --dep-path common $(CC) -- $(CFLAGS) -- $(DEPSRCS) >Make.dep
	@touch $@

depend: .depend

clean:
	@if [ -e board/Makefile ]; then \
		$(MAKE) -C board TOPDIR=$(TOPDIR) clean ; \
	fi
	rm -f libarch$(LIBEXT) up_mem.h asm_mem.h pass1.* nuttx.*
	rm -f *.asm *.rel *.lst *.rst *.sym *.adb *.lnk *.map *.mem *.ihx *.hex
	rm -f core *~ .*.swp *.swp
	if [ ! -z "$(OBJEXT)" ]; then rm -f *$(OBJEXT); fi

distclean: clean
	@if [ -e board/Makefile ]; then \
		$(MAKE) -C board TOPDIR=$(TOPDIR) distclean ; \
	fi
	rm -f Make.dep .depend

-include Make.dep