nuttx/tools/Directories.mk

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############################################################################
# tools/Directories.mk
#
symtab/, tools/: NuttX provides lists of available syscalls and library functions and tools to process them. The lists can be used to build symbol table which allows runtime program loading which can reuse functions already compiled into NuttX system image. List processing, compilation and linking to the final system image has been possible only under manual control until now. Provided changes add option (CONFIG_EXECFUNCS_GENERATE_SYSTEM_SYMTAB) to build complete list of available functions and syscalls automatically. The symbolic table is generated in form libsymtab.a which can be reused by application or directly pull in when "g_symtab" and "g_nsymbols" variables are requested by EXECFUNCS configuration. I have tried to follow mechanisms for library compilation in different kernel protection modes but tested only flat no-MMU build. The basic assumption is that this library and libraries providing syscall stubs and C-library functions are available in user-space context and initial application (usually NSH) registers the symbol table through IOCTL. The table can be reused then by another applications in their address space as kernel allows. Simple for flat or protected mode, I am not sure if really support in MMU mode. It is highly probable that I have made some mistake, overlooked something, but functionality is optional (should not cause troubles in any mode if disabled) and main purpose is to lower memory overhead when more applications are loaded on memory constrained system which usually use direct kernel calling without protection or address space separation. If the table should be provided by kernel to applications then makefiles has to be adjusted.
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# Copyright (C) 2007-2012, 2014, 2016-2019 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.
#
############################################################################
# All add-on directories.
#
# NUTTX_ADDONS is the list of directories built into the NuttX kernel.
# USER_ADDONS is the list of directories that will be built into the user
# application
NUTTX_ADDONS :=
USER_ADDONS :=
# In the protected build, the applications in the apps/ directory will be
# into the userspace; in the flat build, the applications will b built into
# the kernel space. But in the kernel build, the applications will not be
# built at all by this Makefile.
ifeq ($(CONFIG_BUILD_PROTECTED),y)
USER_ADDONS += $(APPDIR)
else
ifneq ($(CONFIG_BUILD_KERNEL),y)
NUTTX_ADDONS += $(APPDIR)
endif
endif
# Lists of build directories.
#
# FSDIRS depend on file descriptor support; NONFSDIRS do not (except for parts
# of FSDIRS). We will exclude FSDIRS from the build if file descriptor
# support is disabled. NOTE that drivers, in general, depends on file
# descriptor support but is always built because there are other components
# in the drivers directory that are needed even if file descriptors are not
# supported.
# CONTEXTDIRS include directories that have special, one-time pre-build
# requirements. Normally this includes things like auto-generation of
# configuration specific files or creation of configurable symbolic links
# USERDIRS - When NuttX is build is a monolithic kernel, this provides the
# list of directories that must be built
# OTHERDIRS - These are directories that are not built but probably should
# be cleaned to prevent garbage from collecting in them when changing
# configurations.
ifeq ($(CONFIG_LIBCXX),y)
LIBXX=libcxx
else
LIBXX=libxx
endif
Merged in alinjerpelea/nuttx (pull request #963) Move boards to boards folder * boards: rename configs folder to boards This is the proposed layout after the change: boards: - folder containing board folders <board>: - name of each board drivers: - extra drivers specific for platform include: - header files for the boars scripts: - extra scripts specific for platform src: - board specific code tools: - extra tools specific for platform <config>: - board specific configuration(s) Note: <xxx> names are dependent on platform This is a logical change to aim to the arch layout but this is a huge change it should be done in several steps to lower the risk. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * Kconfig: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * Makefile: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * Makefile.*: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * Make.defs: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * .sh: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * .mk: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * .c & .h: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * .bat: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> Approved-by: Gregory Nutt <gnutt@nuttx.org>
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NONFSDIRS = sched drivers boards $(ARCH_SRC) $(NUTTX_ADDONS)
FSDIRS = fs binfmt
Merged in alinjerpelea/nuttx (pull request #963) Move boards to boards folder * boards: rename configs folder to boards This is the proposed layout after the change: boards: - folder containing board folders <board>: - name of each board drivers: - extra drivers specific for platform include: - header files for the boars scripts: - extra scripts specific for platform src: - board specific code tools: - extra tools specific for platform <config>: - board specific configuration(s) Note: <xxx> names are dependent on platform This is a logical change to aim to the arch layout but this is a huge change it should be done in several steps to lower the risk. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * Kconfig: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * Makefile: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * Makefile.*: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * Make.defs: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * .sh: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * .mk: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * .c & .h: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> * .bat: replace configs with boards The change is needed after the path change Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> Approved-by: Gregory Nutt <gnutt@nuttx.org>
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CONTEXTDIRS = boards $(APPDIR)
USERDIRS =
OTHERDIRS = pass1
symtab/, tools/: NuttX provides lists of available syscalls and library functions and tools to process them. The lists can be used to build symbol table which allows runtime program loading which can reuse functions already compiled into NuttX system image. List processing, compilation and linking to the final system image has been possible only under manual control until now. Provided changes add option (CONFIG_EXECFUNCS_GENERATE_SYSTEM_SYMTAB) to build complete list of available functions and syscalls automatically. The symbolic table is generated in form libsymtab.a which can be reused by application or directly pull in when "g_symtab" and "g_nsymbols" variables are requested by EXECFUNCS configuration. I have tried to follow mechanisms for library compilation in different kernel protection modes but tested only flat no-MMU build. The basic assumption is that this library and libraries providing syscall stubs and C-library functions are available in user-space context and initial application (usually NSH) registers the symbol table through IOCTL. The table can be reused then by another applications in their address space as kernel allows. Simple for flat or protected mode, I am not sure if really support in MMU mode. It is highly probable that I have made some mistake, overlooked something, but functionality is optional (should not cause troubles in any mode if disabled) and main purpose is to lower memory overhead when more applications are loaded on memory constrained system which usually use direct kernel calling without protection or address space separation. If the table should be provided by kernel to applications then makefiles has to be adjusted.
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ifeq ($(CONFIG_EXECFUNCS_GENERATE_SYSTEM_SYMTAB),y)
USERDIRS += symtab
else
OTHERDIRS += symtab
endif
ifeq ($(CONFIG_BUILD_PROTECTED),y)
USERDIRS += libs$(DELIM)libc mm $(USER_ADDONS)
ifeq ($(CONFIG_HAVE_CXX),y)
USERDIRS += libs$(DELIM)libxx
endif
else
ifeq ($(CONFIG_BUILD_KERNEL),y)
USERDIRS += libs$(DELIM)libc mm
ifeq ($(CONFIG_HAVE_CXX),y)
USERDIRS += libs$(DELIM)libxx
endif
else
NONFSDIRS += libs$(DELIM)libc mm
OTHERDIRS += $(USER_ADDONS)
ifeq ($(CONFIG_HAVE_CXX),y)
NONFSDIRS += libs$(DELIM)libxx
else
OTHERDIRS += libs$(DELIM)libxx
endif
endif
endif
ifeq ($(CONFIG_LIB_SYSCALL),y)
NONFSDIRS += syscall
CONTEXTDIRS += syscall
USERDIRS += syscall
else
OTHERDIRS += syscall
endif
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ifeq ($(CONFIG_LIB_ZONEINFO_ROMFS),y)
CONTEXTDIRS += libs$(DELIM)libc
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endif
ifeq ($(CONFIG_NX),y)
NONFSDIRS += graphics libs$(DELIM)libnx
CONTEXTDIRS += graphics libs$(DELIM)libnx
else ifeq ($(CONFIG_NXFONTS),y)
NONFSDIRS += libs$(DELIM)libnx
CONTEXTDIRS += libs$(DELIM)libnx
OTHERDIRS += graphics
else
OTHERDIRS += graphics libs$(DELIM)libnx
endif
ifeq ($(CONFIG_AUDIO),y)
NONFSDIRS += audio
else
OTHERDIRS += audio
endif
ifeq ($(CONFIG_VIDEO),y)
NONFSDIRS += video
else
OTHERDIRS += video
endif
ifeq ($(CONFIG_WIRELESS),y)
NONFSDIRS += wireless
else
OTHERDIRS += wireless
endif
ifeq ($(CONFIG_LIBDSP),y)
NONFSDIRS += libs$(DELIM)libdsp
else
OTHERDIRS += libs$(DELIM)libdsp
endif
# CLEANDIRS are the directories that will clean in. These are
# all directories that we know about.
# KERNDEPDIRS are the directories in which we will build target dependencies.
# If NuttX and applications are built separately (CONFIG_BUILD_PROTECTED or
# CONFIG_BUILD_KERNEL), then this holds only the directories containing
# kernel files.
# USERDEPDIRS. If NuttX and applications are built separately (CONFIG_BUILD_PROTECTED),
# then this holds only the directories containing user files. If
# CONFIG_BUILD_KERNEL is selected, then applications are not build at all.
CLEANDIRS = $(NONFSDIRS) $(FSDIRS) $(USERDIRS) $(OTHERDIRS)
KERNDEPDIRS = $(NONFSDIRS)
USERDEPDIRS = $(USERDIRS)
# Add file system directories to KERNDEPDIRS (they are already in CLEANDIRS)
KERNDEPDIRS += $(FSDIRS)
# Add networking directories to KERNDEPDIRS and CLEANDIRS
ifeq ($(CONFIG_NET),y)
KERNDEPDIRS += net
endif
CLEANDIRS += net
ifeq ($(CONFIG_CRYPTO),y)
KERNDEPDIRS += crypto
endif
CLEANDIRS += crypto