932a958672
Currently, we only check that the variable is defined, which is not enough since we really want it to be non-empty. We however can't check it points to an existing file, because the package might well not be extracted yet, and we may use an internal defconfig. If that file does not eventually exist, there will be a failure down the road at build time when we try to copy it... Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com> Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
122 lines
5.1 KiB
Makefile
122 lines
5.1 KiB
Makefile
################################################################################
|
|
# Kconfig package infrastructure
|
|
#
|
|
# This file implements an infrastructure that eases development of
|
|
# package .mk files for packages that use kconfig for configuration files.
|
|
# It is based on the generic-package infrastructure, and inherits all of its
|
|
# features.
|
|
#
|
|
# See the Buildroot documentation for details on the usage of this
|
|
# infrastructure.
|
|
#
|
|
################################################################################
|
|
|
|
################################################################################
|
|
# inner-kconfig-package -- generates the make targets needed to support a
|
|
# kconfig package
|
|
#
|
|
# argument 1 is the lowercase package name
|
|
# argument 2 is the uppercase package name, including a HOST_ prefix
|
|
# for host packages
|
|
# argument 3 is the uppercase package name, without the HOST_ prefix
|
|
# for host packages
|
|
# argument 4 is the type (target or host)
|
|
################################################################################
|
|
|
|
define inner-kconfig-package
|
|
|
|
# Call the generic package infrastructure to generate the necessary
|
|
# make targets.
|
|
# Note: this must be done _before_ attempting to use $$($(2)_DIR) in a
|
|
# dependency expression
|
|
$(call inner-generic-package,$(1),$(2),$(3),$(4))
|
|
|
|
# Default values
|
|
$(2)_KCONFIG_EDITORS ?= menuconfig
|
|
$(2)_KCONFIG_OPTS ?=
|
|
$(2)_KCONFIG_FIXUP_CMDS ?=
|
|
$(2)_KCONFIG_FRAGMENT_FILES ?=
|
|
|
|
# The config file could be in-tree, so before depending on it the package should
|
|
# be extracted (and patched) first
|
|
$$($(2)_KCONFIG_FILE): | $(1)-patch
|
|
|
|
# The specified source configuration file and any additional configuration file
|
|
# fragments are merged together to .config, after the package has been patched.
|
|
# Since the file could be a defconfig file it needs to be expanded to a
|
|
# full .config first. We use 'make oldconfig' because this can be safely
|
|
# done even when the package does not support defconfigs.
|
|
$$($(2)_DIR)/.config: $$($(2)_KCONFIG_FILE) $$($(2)_KCONFIG_FRAGMENT_FILES)
|
|
support/kconfig/merge_config.sh -m -O $$(@D) \
|
|
$$($(2)_KCONFIG_FILE) $$($(2)_KCONFIG_FRAGMENT_FILES)
|
|
@yes "" | $$($(2)_MAKE_ENV) $$(MAKE) -C $$($(2)_DIR) \
|
|
$$($(2)_KCONFIG_OPTS) oldconfig
|
|
|
|
# In order to get a usable, consistent configuration, some fixup may be needed.
|
|
# The exact rules are specified by the package .mk file.
|
|
$$($(2)_DIR)/.stamp_kconfig_fixup_done: $$($(2)_DIR)/.config
|
|
$$($(2)_KCONFIG_FIXUP_CMDS)
|
|
@yes "" | $$($(2)_MAKE_ENV) $$(MAKE) -C $$($(2)_DIR) \
|
|
$$($(2)_KCONFIG_OPTS) oldconfig
|
|
$$(Q)touch $$@
|
|
|
|
# Before running configure, the configuration file should be present and fixed
|
|
$$($(2)_TARGET_CONFIGURE): $$($(2)_DIR)/.stamp_kconfig_fixup_done
|
|
|
|
# Only enable the foo-*config targets when the package is actually enabled.
|
|
# Note: the variable $(2)_KCONFIG_VAR is not related to the kconfig
|
|
# infrastructure, but defined by pkg-generic.mk. The generic infrastructure is
|
|
# already called above, so we can effectively use this variable.
|
|
ifeq ($$($$($(2)_KCONFIG_VAR)),y)
|
|
|
|
# FOO_KCONFIG_FILE is required
|
|
ifeq ($$($(2)_KCONFIG_FILE),)
|
|
$$(error Internal error: no value specified for $(2)_KCONFIG_FILE)
|
|
endif
|
|
|
|
# Configuration editors (menuconfig, ...)
|
|
$$(addprefix $(1)-,$$($(2)_KCONFIG_EDITORS)): $$($(2)_DIR)/.stamp_kconfig_fixup_done
|
|
$$($(2)_MAKE_ENV) $$(MAKE) -C $$($(2)_DIR) \
|
|
$$($(2)_KCONFIG_OPTS) $$(subst $(1)-,,$$@)
|
|
rm -f $$($(2)_DIR)/.stamp_{kconfig_fixup_done,configured,built}
|
|
rm -f $$($(2)_DIR)/.stamp_{target,staging,images}_installed
|
|
|
|
$(1)-savedefconfig: $$($(2)_DIR)/.stamp_kconfig_fixup_done
|
|
$$($(2)_MAKE_ENV) $$(MAKE) -C $$($(2)_DIR) \
|
|
$$($(2)_KCONFIG_OPTS) savedefconfig
|
|
|
|
# Target to copy back the configuration to the source configuration file
|
|
# Even though we could use 'cp --preserve-timestamps' here, the separate
|
|
# cp and 'touch --reference' is used for symmetry with $(1)-update-defconfig.
|
|
$(1)-update-config: $$($(2)_DIR)/.stamp_kconfig_fixup_done
|
|
@$$(if $$($(2)_KCONFIG_FRAGMENT_FILES), \
|
|
echo "Unable to perform $(1)-update-config when fragment files are set"; exit 1)
|
|
cp -f $$($(2)_DIR)/.config $$($(2)_KCONFIG_FILE)
|
|
touch --reference $$($(2)_DIR)/.config $$($(2)_KCONFIG_FILE)
|
|
|
|
# Note: make sure the timestamp of the stored configuration is not newer than
|
|
# the .config to avoid a useless rebuild. Note that, contrary to
|
|
# $(1)-update-config, the reference for 'touch' is _not_ the file from which
|
|
# we copy.
|
|
$(1)-update-defconfig: $(1)-savedefconfig
|
|
@$$(if $$($(2)_KCONFIG_FRAGMENT_FILES), \
|
|
echo "Unable to perform $(1)-update-defconfig when fragment files are set"; exit 1)
|
|
cp -f $$($(2)_DIR)/defconfig $$($(2)_KCONFIG_FILE)
|
|
touch --reference $$($(2)_DIR)/.config $$($(2)_KCONFIG_FILE)
|
|
|
|
endif # package enabled
|
|
|
|
.PHONY: \
|
|
$(1)-update-config \
|
|
$(1)-update-defconfig \
|
|
$(1)-savedefconfig \
|
|
$$(addprefix $(1)-,$$($(2)_KCONFIG_EDITORS))
|
|
|
|
endef # inner-kconfig-package
|
|
|
|
################################################################################
|
|
# kconfig-package -- the target generator macro for kconfig packages
|
|
################################################################################
|
|
|
|
kconfig-package = $(call inner-kconfig-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
|