forked from Archive/PX4-Autopilot
382 lines
12 KiB
Makefile
382 lines
12 KiB
Makefile
#
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# Copyright (C) 2012 PX4 Development Team. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name PX4 nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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#
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# Generic Makefile for PX4 firmware images.
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#
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# Requires:
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#
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# BOARD
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# Must be set to a board name known to the PX4 distribution (as
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# we need a corresponding NuttX export archive to link with).
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#
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# Optional:
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#
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# MODULES
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# Contains a list of module paths or path fragments used
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# to find modules. The names listed here are searched in
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# the following directories:
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# <absolute path>
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# $(MODULE_SEARCH_DIRS)
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# WORK_DIR
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# MODULE_SRC
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# PX4_MODULE_SRC
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#
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# Application directories are expected to contain a module.mk
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# file which provides build configuration for the module. See
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# makefiles/module.mk for more details.
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#
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# BUILTIN_COMMANDS
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# Contains a list of built-in commands not explicitly provided
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# by modules / libraries. Each entry in this list is formatted
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# as <command>.<priority>.<stacksize>.<entrypoint>
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#
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# PX4_BASE:
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# Points to a PX4 distribution. Normally determined based on the
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# path to this file.
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#
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# CONFIG:
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# Used when searching for the configuration file, and available
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# to module Makefiles to select optional features.
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# If not set, CONFIG_FILE must be set and CONFIG will be derived
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# automatically from it.
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#
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# CONFIG_FILE:
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# If set, overrides the configuration file search logic. Sets
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# CONFIG to the name of the configuration file, strips any
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# leading config_ prefix and any suffix. e.g. config_board_foo.mk
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# results in CONFIG being set to 'board_foo'.
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#
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# WORK_DIR:
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# Sets the directory in which the firmware will be built. Defaults
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# to the directory 'build' under the directory containing the
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# parent Makefile.
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#
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# ROMFS_ROOT:
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# If set to the path to a directory, a ROMFS image will be generated
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# containing the files under the directory and linked into the final
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# image.
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#
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# MODULE_SEARCH_DIRS:
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# Extra directories to search first for MODULES before looking in the
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# usual places.
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#
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################################################################################
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# Paths and configuration
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################################################################################
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#
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# Work out where this file is, so we can find other makefiles in the
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# same directory.
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#
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# If PX4_BASE wasn't set previously, work out what it should be
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# and set it here now.
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#
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MK_DIR ?= $(dir $(firstword $(MAKEFILE_LIST)))
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ifeq ($(PX4_BASE),)
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export PX4_BASE := $(abspath $(MK_DIR)/..)
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endif
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$(info % PX4_BASE = $(PX4_BASE))
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ifneq ($(words $(PX4_BASE)),1)
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$(error Cannot build when the PX4_BASE path contains one or more space characters.)
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endif
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$(info % GIT_DESC = $(GIT_DESC))
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#
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# Set a default target so that included makefiles or errors here don't
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# cause confusion.
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#
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# XXX We could do something cute here with $(DEFAULT_GOAL) if it's not one
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# of the maintenance targets and set CONFIG based on it.
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#
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all: firmware
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#
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# Get path and tool config
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#
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include $(MK_DIR)/setup.mk
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#
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# Locate the configuration file
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#
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ifneq ($(CONFIG_FILE),)
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CONFIG := $(subst config_,,$(basename $(notdir $(CONFIG_FILE))))
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else
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CONFIG_FILE := $(wildcard $(PX4_MK_DIR)/$(PX4_TARGET_OS)/config_$(CONFIG).mk)
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endif
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ifeq ($(CONFIG),)
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$(error Missing configuration name or file (specify with CONFIG=<config>))
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endif
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export CONFIG
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include $(CONFIG_FILE)
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$(info % CONFIG = $(CONFIG))
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#
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# Sanity-check the BOARD variable and then get the board config.
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# If BOARD was not set by the configuration, extract it automatically.
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#
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# The board config in turn will fetch the toolchain configuration.
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#
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ifeq ($(BOARD),)
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BOARD := $(firstword $(subst _, ,$(CONFIG)))
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endif
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BOARD_FILE := $(wildcard $(PX4_MK_DIR)/$(PX4_TARGET_OS)/board_$(BOARD).mk)
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ifeq ($(BOARD_FILE),)
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$(error Config $(CONFIG) references board $(BOARD), but no board definition file found)
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endif
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export BOARD
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export BOARD_FILE
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include $(BOARD_FILE)
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$(info % BOARD = $(BOARD))
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#
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# If WORK_DIR is not set, create a 'build' directory next to the
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# parent Makefile.
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#
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PARENT_MAKEFILE := $(lastword $(filter-out $(lastword $(MAKEFILE_LIST)),$(MAKEFILE_LIST)))
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ifeq ($(WORK_DIR),)
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export WORK_DIR := $(dir $(PARENT_MAKEFILE))build/
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endif
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$(info % WORK_DIR = $(WORK_DIR))
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#
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# Things that, if they change, might affect everything
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#
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GLOBAL_DEPS += $(MAKEFILE_LIST)
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#
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# Extra things we should clean
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#
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EXTRA_CLEANS =
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#
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# Append the per-board driver directory to the header search path.
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#
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INCLUDE_DIRS += $(PX4_MODULE_SRC)drivers/boards/$(BOARD)
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################################################################################
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# OS specific libraries and paths
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################################################################################
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include $(PX4_MK_DIR)/$(PX4_TARGET_OS)/$(PX4_TARGET_OS).mk
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################################################################################
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# Modules
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################################################################################
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# where to look for modules
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MODULE_SEARCH_DIRS += $(WORK_DIR) $(MODULE_SRC) $(PX4_MODULE_SRC)
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# sort and unique the modules list
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MODULES := $(sort $(MODULES))
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# locate the first instance of a module by full path or by looking on the
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# module search path
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define MODULE_SEARCH
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$(firstword $(abspath $(wildcard $(1)/module.mk)) \
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$(abspath $(foreach search_dir,$(MODULE_SEARCH_DIRS),$(wildcard $(search_dir)/$(1)/module.mk))) \
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MISSING_$1)
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endef
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# make a list of module makefiles and check that we found them all
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MODULE_MKFILES := $(foreach module,$(MODULES),$(call MODULE_SEARCH,$(module)))
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MISSING_MODULES := $(subst MISSING_,,$(filter MISSING_%,$(MODULE_MKFILES)))
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ifneq ($(MISSING_MODULES),)
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$(error Cant find module(s): $(MISSING_MODULES))
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endif
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# Make a list of the object files we expect to build from modules
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# Note that this path will typically contain a double-slash at the WORK_DIR boundary; this must be
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# preserved as it is used below to get the absolute path for the module.mk file correct.
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#
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MODULE_OBJS := $(foreach path,$(dir $(MODULE_MKFILES)),$(WORK_DIR)$(path)module.pre.o)
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# rules to build module objects
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.PHONY: $(MODULE_OBJS)
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$(MODULE_OBJS): relpath = $(patsubst $(WORK_DIR)%,%,$@)
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$(MODULE_OBJS): mkfile = $(patsubst %module.pre.o,%module.mk,$(relpath))
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$(MODULE_OBJS): workdir = $(@D)
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$(MODULE_OBJS): $(GLOBAL_DEPS) $(NUTTX_CONFIG_HEADER)
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$(Q) $(MKDIR) -p $(workdir)
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$(Q) $(MAKE) -r -f $(PX4_MK_DIR)module.mk \
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-C $(workdir) \
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MODULE_WORK_DIR=$(workdir) \
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MODULE_OBJ=$@ \
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MODULE_MK=$(mkfile) \
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MODULE_NAME=$(lastword $(subst /, ,$(workdir))) \
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module
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# make a list of phony clean targets for modules
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MODULE_CLEANS := $(foreach path,$(dir $(MODULE_MKFILES)),$(WORK_DIR)$(path)/clean)
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# rules to clean modules
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.PHONY: $(MODULE_CLEANS)
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$(MODULE_CLEANS): relpath = $(patsubst $(WORK_DIR)%,%,$@)
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$(MODULE_CLEANS): mkfile = $(patsubst %clean,%module.mk,$(relpath))
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$(MODULE_CLEANS):
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@$(ECHO) %% cleaning using $(mkfile)
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$(Q) $(MAKE) -r -f $(PX4_MK_DIR)module.mk \
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MODULE_WORK_DIR=$(dir $@) \
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MODULE_MK=$(mkfile) \
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clean
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################################################################################
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# Libraries
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################################################################################
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# where to look for libraries
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LIBRARY_SEARCH_DIRS += $(WORK_DIR) $(MODULE_SRC) $(PX4_MODULE_SRC)
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# sort and unique the library list
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LIBRARIES := $(sort $(LIBRARIES))
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# locate the first instance of a library by full path or by looking on the
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# library search path
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define LIBRARY_SEARCH
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$(firstword $(abspath $(wildcard $(1)/library.mk)) \
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$(abspath $(foreach search_dir,$(LIBRARY_SEARCH_DIRS),$(wildcard $(search_dir)/$(1)/library.mk))) \
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MISSING_$1)
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endef
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# make a list of library makefiles and check that we found them all
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LIBRARY_MKFILES := $(foreach library,$(LIBRARIES),$(call LIBRARY_SEARCH,$(library)))
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MISSING_LIBRARIES := $(subst MISSING_,,$(filter MISSING_%,$(LIBRARY_MKFILES)))
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ifneq ($(MISSING_LIBRARIES),)
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$(error Cant find library(s): $(MISSING_LIBRARIES))
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endif
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# Make a list of the archive files we expect to build from libraries
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# Note that this path will typically contain a double-slash at the WORK_DIR boundary; this must be
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# preserved as it is used below to get the absolute path for the library.mk file correct.
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#
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LIBRARY_LIBS := $(foreach path,$(dir $(LIBRARY_MKFILES)),$(WORK_DIR)$(path)library.a)
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# rules to build module objects
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.PHONY: $(LIBRARY_LIBS)
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$(LIBRARY_LIBS): relpath = $(patsubst $(WORK_DIR)%,%,$@)
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$(LIBRARY_LIBS): mkfile = $(patsubst %library.a,%library.mk,$(relpath))
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$(LIBRARY_LIBS): workdir = $(@D)
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$(LIBRARY_LIBS): $(GLOBAL_DEPS) $(NUTTX_CONFIG_HEADER)
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$(Q) $(MKDIR) -p $(workdir)
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$(Q) $(MAKE) -r -f $(PX4_MK_DIR)library.mk \
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-C $(workdir) \
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LIBRARY_WORK_DIR=$(workdir) \
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LIBRARY_LIB=$@ \
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LIBRARY_MK=$(mkfile) \
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LIBRARY_NAME=$(lastword $(subst /, ,$(workdir))) \
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library
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# make a list of phony clean targets for modules
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LIBRARY_CLEANS := $(foreach path,$(dir $(LIBRARY_MKFILES)),$(WORK_DIR)$(path)/clean)
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# rules to clean modules
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.PHONY: $(LIBRARY_CLEANS)
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$(LIBRARY_CLEANS): relpath = $(patsubst $(WORK_DIR)%,%,$@)
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$(LIBRARY_CLEANS): mkfile = $(patsubst %clean,%library.mk,$(relpath))
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$(LIBRARY_CLEANS):
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@$(ECHO) %% cleaning using $(mkfile)
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$(Q) $(MAKE) -r -f $(PX4_MK_DIR)library.mk \
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LIBRARY_WORK_DIR=$(dir $@) \
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LIBRARY_MK=$(mkfile) \
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clean
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################################################################################
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# ROMFS generation
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################################################################################
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ifeq ($(PX4_TARGET_OS),nuttx)
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include $(MK_DIR)/nuttx/nuttx_romfs.mk
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endif
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################################################################################
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# Default SRCS generation
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################################################################################
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#
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# If there are no SRCS, the build will fail; in that case, generate an empty
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# source file.
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#
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ifeq ($(SRCS),)
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EMPTY_SRC = $(WORK_DIR)empty.c
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$(EMPTY_SRC):
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$(Q) $(ECHO) '/* this is an empty file */' > $@
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SRCS += $(EMPTY_SRC)
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endif
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################################################################################
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# Build rules
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################################################################################
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#
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# Object files we will generate from sources
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#
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OBJS := $(foreach src,$(SRCS),$(WORK_DIR)$(src).o)
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#
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# SRCS -> OBJS rules
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#
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$(OBJS): $(GLOBAL_DEPS)
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$(filter %.c.o,$(OBJS)): $(WORK_DIR)%.c.o: %.c $(GLOBAL_DEPS)
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$(call COMPILE,$<,$@)
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$(filter %.cpp.o,$(OBJS)): $(WORK_DIR)%.cpp.o: %.cpp $(GLOBAL_DEPS)
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$(call COMPILEXX,$<,$@)
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$(filter %.S.o,$(OBJS)): $(WORK_DIR)%.S.o: %.S $(GLOBAL_DEPS)
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$(call ASSEMBLE,$<,$@)
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# Include the OS specific build rules
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# The rules must define the "firmware" make target
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#
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ifeq ($(PX4_TARGET_OS),nuttx)
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include $(MK_DIR)/nuttx/nuttx_px4.mk
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endif
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ifeq ($(PX4_TARGET_OS),posix)
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include $(MK_DIR)/posix/posix_elf.mk
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endif
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ifeq ($(PX4_TARGET_OS),posix-arm)
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include $(MK_DIR)/posix/posix_elf.mk
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endif
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ifeq ($(PX4_TARGET_OS),qurt)
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include $(MK_DIR)/qurt/qurt_elf.mk
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endif
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#
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# DEP_INCLUDES is defined by the toolchain include in terms of $(OBJS)
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#
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-include $(DEP_INCLUDES)
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