9ce4de634d
This works by having the build system look for nuttx/external/Kconfig to determine whether this directory is present or not. nuttx/external is gitignored in order to be added by the final user but not to be commited into the repo. Tipically this will by a symbolic link, just like apps/external. Inside external/ a Makefile should be placed with the same structure than any nuttx/ subdirectory (eg: nuttx/drivers/). The nuttx/external/Kconfig will be sourced and any options defined there will appear at the bottom of menuconfig (unless options are conditioned on menus, in which case they will appear accordingly). The purpose is to allow arch/board independent code, which for any reason is not to be upstreamed (propietary, not relevant for mainline, testing, etc), to be built into the OS during OS building stage. This way the user does not need to fork the NuttX repo to do so. This feature complements well with external apps and custom board support.
182 lines
5.0 KiB
Makefile
182 lines
5.0 KiB
Makefile
############################################################################
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# tools/Directories.mk
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#
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# Copyright (C) 2007-2012, 2014, 2016-2019 Gregory Nutt. All rights
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# reserved.
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# Author: Gregory Nutt <gnutt@nuttx.org>
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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 NuttX 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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# Lists of build directories.
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#
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# CONTEXTDIRS include directories that have special, one-time pre-build
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# requirements. Normally this includes things like auto-generation of
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# configuration specific files or creation of configurable symbolic links
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# CLEANDIRS are the directories that the clean target will executed in.
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# These are all directories that we know about.
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# CCLEANDIRS are directories that the clean_context target will execute in.
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# The clean_context target "undoes" the actions of the context target.
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# Only directories known to require cleaning are included.
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# KERNDEPDIRS are the directories in which we will build target dependencies.
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# If NuttX and applications are built separately (CONFIG_BUILD_PROTECTED or
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# CONFIG_BUILD_KERNEL), then this holds only the directories containing
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# kernel files.
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# USERDEPDIRS. If NuttX and applications are built separately (CONFIG_BUILD_PROTECTED),
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# then this holds only the directories containing user files. If
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# CONFIG_BUILD_KERNEL is selected, then applications are not build at all.
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CLEANDIRS :=
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CCLEANDIRS := boards $(APPDIR) graphics
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KERNDEPDIRS :=
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USERDEPDIRS :=
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# In the protected build, the applications in the apps/ directory will be
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# into the userspace; in the flat build, the applications will be built into
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# the kernel space. But in the kernel build, the applications will not be
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# built at all by this Makefile.
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ifeq ($(CONFIG_BUILD_PROTECTED),y)
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USERDEPDIRS += $(APPDIR)
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else ifneq ($(CONFIG_BUILD_KERNEL),y)
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KERNDEPDIRS += $(APPDIR)
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else
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CLEANDIRS += $(APPDIR)
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endif
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KERNDEPDIRS += sched drivers boards $(ARCH_SRC)
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KERNDEPDIRS += fs binfmt
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ifeq ($(EXTERNALDIR),external)
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KERNDEPDIRS += external
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endif
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CONTEXTDIRS = boards fs $(APPDIR)
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CLEANDIRS += pass1
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ifeq ($(CONFIG_BUILD_FLAT),y)
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KERNDEPDIRS += libs$(DELIM)libc mm
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ifeq ($(CONFIG_HAVE_CXX),y)
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KERNDEPDIRS += libs$(DELIM)libxx
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else
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CLEANDIRS += libs$(DELIM)libxx
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endif
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else
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USERDEPDIRS += libs$(DELIM)libc mm
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ifeq ($(CONFIG_HAVE_CXX),y)
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USERDEPDIRS += libs$(DELIM)libxx
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else
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CLEANDIRS += libs$(DELIM)libxx
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endif
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endif
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ifeq ($(CONFIG_LIB_SYSCALL),y)
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CONTEXTDIRS += syscall
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USERDEPDIRS += syscall
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else
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ifeq ($(CONFIG_SCHED_INSTRUMENTATION_SYSCALL),y)
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CONTEXTDIRS += syscall
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USERDEPDIRS += syscall
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else
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CLEANDIRS += syscall
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endif
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endif
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ifeq ($(CONFIG_LIB_ZONEINFO_ROMFS),y)
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CONTEXTDIRS += libs$(DELIM)libc
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endif
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ifeq ($(CONFIG_NX),y)
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KERNDEPDIRS += graphics
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CONTEXTDIRS += graphics
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else
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CLEANDIRS += graphics
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endif
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ifeq ($(CONFIG_NXFONTS),y)
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ifeq ($(CONFIG_BUILD_FLAT),y)
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KERNDEPDIRS += libs$(DELIM)libnx
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else
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USERDEPDIRS += libs$(DELIM)libnx
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endif
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CONTEXTDIRS += libs$(DELIM)libnx
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else
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CLEANDIRS += libs$(DELIM)libnx
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endif
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ifeq ($(CONFIG_AUDIO),y)
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KERNDEPDIRS += audio
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else
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CLEANDIRS += audio
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endif
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ifeq ($(CONFIG_VIDEO),y)
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KERNDEPDIRS += video
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else
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CLEANDIRS += video
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endif
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ifeq ($(CONFIG_WIRELESS),y)
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KERNDEPDIRS += wireless
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else
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CLEANDIRS += wireless
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endif
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ifeq ($(CONFIG_LIBDSP),y)
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KERNDEPDIRS += libs$(DELIM)libdsp
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else
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CLEANDIRS += libs$(DELIM)libdsp
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endif
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# Add networking directories to KERNDEPDIRS and CLEANDIRS
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ifeq ($(CONFIG_NET),y)
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KERNDEPDIRS += net
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else
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CLEANDIRS += net
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endif
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ifeq ($(CONFIG_CRYPTO),y)
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KERNDEPDIRS += crypto
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else
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CLEANDIRS += crypto
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endif
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ifeq ($(CONFIG_OPENAMP),y)
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KERNDEPDIRS += openamp
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else
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CLEANDIRS += openamp
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endif
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CLEANDIRS += $(KERNDEPDIRS) $(USERDEPDIRS)
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