px4-firmware/apps/examples/elf/Makefile

############################################################################
# apps/examples/elf/Makefile
#
#   Copyright (C) 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)/.config
-include $(TOPDIR)/Make.defs
include $(APPDIR)/Make.defs

# ELF Example

ASRCS =
CSRCS = elf_main.c symtab.c

AOBJS = $(ASRCS:.S=$(OBJEXT))
COBJS = $(CSRCS:.c=$(OBJEXT))

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

ifeq ($(WINTOOL),y)
  BIN = "${shell cygpath -w  $(APPDIR)/libapps$(LIBEXT)}"
else
  BIN = "$(APPDIR)/libapps$(LIBEXT)"
endif

ROOTDEPPATH	= --dep-path . --dep-path tests

# Build targets

VPATH = tests

all: .built
.PHONY: really_build clean_tests clean depend disclean

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

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

# This is a little messy.  The build is broken into two pieces:  (1) the
# tests/ subdir build that auto-generates several files, and (2) the real
# build.  This is done because we need a fresh build context after auto-
# generating the source files.

really_build: $(OBJS)
	$(call ARCHIVE, $(BIN), "$(OBJS)")
	@touch .built

.built:
	@$(MAKE) -C tests TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" CROSSDEV=$(CROSSDEV)
	@$(MAKE) TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" really_build

context:

# We can't make dependencies in this directory because the required
# header files may not yet exist.

.depend:
	@touch $@

depend: .depend

clean_tests:
	@$(MAKE) -C tests TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" CROSSDEV=$(CROSSDEV) clean

clean: clean_tests
	@rm -f *.o *~ .*.swp .built
	$(call CLEAN)

distclean: clean
	@rm -f Make.dep .depend

-include Make.dep