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############################################################################
# arch/arm/src/Makefile
#
#   Copyright (C) 2007-2009, 2011-2012 Gregory Nutt. All rights reserved.
#   Author: Gregory Nutt <gnutt@nuttx.org>
#
# 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.
#
############################################################################

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

ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
ifeq ($(CONFIG_ARCH_CORTEXM3),y)   # Cortex-M3 is ARMv7-M
ARCH_SUBDIR	= armv7-m
else
ifeq ($(CONFIG_ARCH_CORTEXM4),y)   # Cortex-M4 is ARMv7E-M
ARCH_SUBDIR	= armv7-m
else
ARCH_SUBDIR	= arm
endif
endif

ifeq ($(WINTOOL),y)
  NUTTX		= "${shell cygpath -w $(TOPDIR)/nuttx}"
  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
		   -I "${shell cygpath -w $(ARCH_SRCDIR)/$(ARCH_SUBDIR)}" \
		   -I "${shell cygpath -w $(TOPDIR)/sched}"
else
  NUTTX		= $(TOPDIR)/nuttx
  CFLAGS	+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common \
		   -I$(ARCH_SRCDIR)/$(ARCH_SUBDIR) -I$(TOPDIR)/sched
endif

HEAD_OBJ	= $(HEAD_ASRC:.S=$(OBJEXT))

ASRCS		= $(CHIP_ASRCS) $(CMN_ASRCS)
AOBJS		= $(ASRCS:.S=$(OBJEXT))

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

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

LDFLAGS		= $(ARCHSCRIPT)
EXTRA_LIBS	?=

LINKLIBS	=
ifeq ($(WINTOOL),y)
  LIBPATHS	= ${shell for path in $(LINKLIBS); do dir=`dirname $(TOPDIR)/$$path`;echo "-L\"`cygpath -w $$dir`\"";done}
  LIBPATHS	+= -L"${shell cygpath -w $(BOARDDIR)}"
else
  LIBPATHS	= $(addprefix -L$(TOPDIR)/,$(dir $(LINKLIBS)))
  LIBPATHS	+= -L"$(BOARDDIR)"
endif
LDLIBS		= $(patsubst lib%,-l%,$(basename $(notdir $(LINKLIBS))))

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

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

VPATH		= chip:common:$(ARCH_SUBDIR)

all: $(HEAD_OBJ) libarch$(LIBEXT)

.PHONY: board/libboard$(LIBEXT)

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

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

libarch$(LIBEXT): $(OBJS)
	@( for obj in $(OBJS) ; do \
		$(call ARCHIVE, $@, $${obj}); \
	done ; )

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

nuttx: $(HEAD_OBJ) board/libboard$(LIBEXT)
	@echo "LD: nuttx"
	@$(LD) --entry=__start $(LDFLAGS) $(LIBPATHS) -o $(NUTTX)$(EXEEXT) $(HEAD_OBJ) $(EXTRA_OBJS) \
		--start-group $(LDLIBS) -lboard $(EXTRA_LIBS) $(LIBGCC) --end-group
ifeq ($(CONFIG_BOOT_RUNFROMFLASH),y)
	@export flashloc=`$(OBJDUMP) --all-headers $(NUTTX)$(EXEEXT) | grep _eronly | cut -d' ' -f1`;  \
	$(OBJCOPY) $(OBJCOPYARGS) --adjust-section-vma=.data=0x$$flashloc $(NUTTX)$(EXEEXT) $(NUTTX).flashimage
	@mv $(NUTTX).flashimage $(NUTTX)$(EXEEXT)
endif
	@$(NM) $(NUTTX)$(EXEEXT) | \
	grep -v '\(compiled\)\|\(\$(OBJEXT)$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
	sort > $(TOPDIR)/System.map

# This is part of the top-level export target

export_head: board/libboard$(LIBEXT) $(HEAD_OBJ)
	@if [ -d "$(EXPORT_DIR)/startup" ]; then \
		cp -f $(HEAD_OBJ) "$(EXPORT_DIR)/startup"; \
	 else \
		echo "$(EXPORT_DIR)/startup does not exist"; \
		exit 1; \
	 fi

# Dependencies

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

depend: .depend

clean:
	@if [ -e board/Makefile ]; then \
		$(MAKE) -C board TOPDIR="$(TOPDIR)" clean ; \
	fi
	@rm -f libarch$(LIBEXT) *~ .*.swp
	$(call CLEAN)

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

-include Make.dep