############################################################################
# arch/z80/src/Makefile.clang
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.  The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################

# Directories

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

# Tools

CFLAGS += ${shell $(INCDIR) "$(CC)" $(ARCH_SRCDIR)$(DELIM)chip}
CFLAGS += ${shell $(INCDIR) "$(CC)" $(ARCH_SRCDIR)$(DELIM)common}
CFLAGS += ${shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)sched}
CFLAGS += -I.

CPPFLAGS += -D__ASSEMBLY__

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

# There should be one head source (.asm file)
#
HEAD_OBJ = $(HEAD_ASRC:$(ASMEXT)=$(OBJEXT))
STARTUP_OBJS ?= $(HEAD_OBJ)

# Assembly sources and objects

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

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)

VPATH = chip:common:board

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

all: $(HEAD_OBJ) libarch$(LIBEXT)

.PHONY: board$(DELIM)libboard$(LIBEXT)

$(AOBJS) $(HEAD_OBJ): %$(OBJEXT): %$(ASMEXT)
	$(call ASSEMBLE, $<, $@)

$(COBJS): %$(OBJEXT): %.c
	$(call COMPILE, $<, $@)

# TODO will I need the asm_mem.h hack of SDCC?

libarch$(LIBEXT): $(OBJS)
	$(call ARCHIVE, $@, $(OBJS))

board$(DELIM)libboard$(LIBEXT):
	$(Q) $(MAKE) -C board libboard$(LIBEXT) EXTRAFLAGS="$(EXTRAFLAGS)"

LIBPATHS += -L"$(TOPDIR)$(DELIM)staging"
LIBPATHS += -L"$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board"

LDLIBS += $(patsubst %.a,%,$(patsubst lib%,-l%,$(LINKLIBS))) -lboard

NUTTX = "$(TOPDIR)$(DELIM)nuttx$(EXEEXT)"

nuttx$(EXEEXT): $(HEAD_OBJ) board$(DELIM)libboard$(LIBEXT) $(LINKCMD)
	$(Q) echo "LD: nuttx into $(NUTTX)"
	$(Q) "$(LD)" -o $(NUTTX) $(HEAD_OBJ) -T $(LINKCMD) --orphan-handling=error --print-memory-usage \
	    $(LIBPATHS) "-(" $(LDLIBS) "-)" $(LDFLAGS) -Map="$(TOPDIR)$(DELIM)nuttx.map"

.depend: Makefile chip$(DELIM)Make.defs $(DEPSRCS) $(TOPDIR)$(DELIM).config
	$(Q) if [ -e board$(DELIM)Makefile ]; then \
		$(MAKE) -C board depend ; \
	fi
	$(Q) $(MKDEP) --dep-path chip --dep-path common "$(CC)" -- $(CFLAGS) -- $(DEPSRCS) >Make.dep
	$(Q) touch $@

# This is part of the top-level export target

export_startup: board$(DELIM)libboard$(LIBEXT) $(STARTUP_OBJS)
	$(Q) if [ -d "$(EXPORT_DIR)$(DELIM)startup" ]; then \
		cp -f $(STARTUP_OBJS) "$(EXPORT_DIR)$(DELIM)startup"; \
	 else \
		echo "$(EXPORT_DIR)$(DELIM)startup does not exist"; \
		exit 1; \
	 fi

# Dependencies

depend: .depend

context::

clean_context::

clean:
	$(Q) if [ -e board$(DELIM)Makefile ]; then \
		$(MAKE) -C board clean ; \
	fi
	$(call DELFILE, *.map)
	$(call DELFILE, libarch$(LIBEXT))
	$(call CLEAN)

distclean: clean
	$(Q) if [ -e board$(DELIM)Makefile ]; then \
		$(MAKE) -C board distclean ; \
	fi
	$(call DELFILE, Make.dep)
	$(call DELFILE, .depend)

-include Make.dep