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package/pkg-kconfig.mk: reusability improvements

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This patch refactors savedefconfig and the configuration re-generation
to separate macros so that the functionality can be re-used in further
rules.

Signed-off-by: Marcel Patzlaff <m.patzlaff@pilz.de>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Marcel Patzlaff 2018-09-21 15:55:20 +02:00 committed by Thomas Petazzoni
parent 9ace1cff33
commit 38a1954ad9
1 changed files with 25 additions and 18 deletions
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43
package/pkg-kconfig.mk
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@ -30,6 +30,28 @@ endef
PKG_KCONFIG_COMMON_OPTS = \ PKG_KCONFIG_COMMON_OPTS = \
HOSTCC=$(HOSTCC_NOCCACHE) HOSTCC=$(HOSTCC_NOCCACHE)
# Macro to save the defconfig file
# $(1): the name of the package in upper-case letters
define kconfig-package-savedefconfig
$($(1)_MAKE_ENV) $(MAKE) -C $($(1)_DIR) \
$(PKG_KCONFIG_COMMON_OPTS) $($(1)_KCONFIG_OPTS) savedefconfig
endef
# The correct way to regenerate a .config file is to use 'make olddefconfig'.
# For historical reasons, the target name is 'oldnoconfig' between Linux kernel
# versions 2.6.36 and 3.6, and remains as an alias in later versions.
# In older versions, and in some other projects that use kconfig, the target is
# not supported at all, and we use 'yes "" | make oldconfig' as a fallback
# only, as this can fail in complex cases.
# $(1): the name of the package in upper-case letters
define kconfig-package-regen-dot-config
$(if $(filter olddefconfig,$($(1)_KCONFIG_RULES)),
$(Q)$($(1)_KCONFIG_MAKE) olddefconfig,
$(if $(filter oldnoconfig,$($(1)_KCONFIG_RULES)),
$(Q)$($(1)_KCONFIG_MAKE) oldnoconfig,
$(Q)(yes "" | $($(1)_KCONFIG_MAKE) oldconfig)))
endef
################################################################################ ################################################################################
# inner-kconfig-package -- generates the make targets needed to support a # inner-kconfig-package -- generates the make targets needed to support a
# kconfig package # kconfig package
@ -104,20 +126,6 @@ $(2)_KCONFIG_RULES = \
$$(shell $$($(2)_KCONFIG_MAKE) -pn config 2>/dev/null | \ $$(shell $$($(2)_KCONFIG_MAKE) -pn config 2>/dev/null | \
sed 's/^\([_0-9a-zA-Z]*config\):.*/\1/ p; d') sed 's/^\([_0-9a-zA-Z]*config\):.*/\1/ p; d')
# The correct way to regenerate a .config file is to use 'make olddefconfig'.
# For historical reasons, the target name is 'oldnoconfig' between Linux kernel
# versions 2.6.36 and 3.6, and remains as an alias in later versions.
# In older versions, and in some other projects that use kconfig, the target is
# not supported at all, and we use 'yes "" | make oldconfig' as a fallback
# only, as this can fail in complex cases.
define $(2)_REGEN_DOT_CONFIG
$$(if $$(filter olddefconfig,$$($(2)_KCONFIG_RULES)),
$$(Q)$$($(2)_KCONFIG_MAKE) olddefconfig,
$$(if $$(filter oldnoconfig,$$($(2)_KCONFIG_RULES)),
$$(Q)$$($(2)_KCONFIG_MAKE) oldnoconfig,
$$(Q)(yes "" | $$($(2)_KCONFIG_MAKE) oldconfig)))
endef
# The specified source configuration file and any additional configuration file # The specified source configuration file and any additional configuration file
# fragments are merged together to .config, after the package has been patched. # 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 # Since the file could be a defconfig file it needs to be expanded to a
@ -128,7 +136,7 @@ $$($(2)_DIR)/$$($(2)_KCONFIG_STAMP_DOTCONFIG): $$($(2)_KCONFIG_FILE) $$($(2)_KCO
$$(INSTALL) -m 0644 -D $$($(2)_KCONFIG_FILE) $$(@D)/$$($(2)_KCONFIG_DOTCONFIG)) $$(INSTALL) -m 0644 -D $$($(2)_KCONFIG_FILE) $$(@D)/$$($(2)_KCONFIG_DOTCONFIG))
$$(Q)support/kconfig/merge_config.sh -m -O $$(@D) \ $$(Q)support/kconfig/merge_config.sh -m -O $$(@D) \
$$(@D)/$$($(2)_KCONFIG_DOTCONFIG) $$($(2)_KCONFIG_FRAGMENT_FILES) $$(@D)/$$($(2)_KCONFIG_DOTCONFIG) $$($(2)_KCONFIG_FRAGMENT_FILES)
$$($(2)_REGEN_DOT_CONFIG) $$(call kconfig-package-regen-dot-config,$(2))
$$(Q)touch $$(@D)/$$($(2)_KCONFIG_STAMP_DOTCONFIG) $$(Q)touch $$(@D)/$$($(2)_KCONFIG_STAMP_DOTCONFIG)
# If _KCONFIG_FILE or _KCONFIG_FRAGMENT_FILES exists, this dependency is # If _KCONFIG_FILE or _KCONFIG_FRAGMENT_FILES exists, this dependency is
@ -145,7 +153,7 @@ $$($(2)_DIR)/$$($(2)_KCONFIG_STAMP_DOTCONFIG): | $$($(2)_KCONFIG_DEPENDENCIES)
# The exact rules are specified by the package .mk file. # The exact rules are specified by the package .mk file.
define $(2)_FIXUP_DOT_CONFIG define $(2)_FIXUP_DOT_CONFIG
$$($(2)_KCONFIG_FIXUP_CMDS) $$($(2)_KCONFIG_FIXUP_CMDS)
$$($(2)_REGEN_DOT_CONFIG) $$(call kconfig-package-regen-dot-config,$(2))
$$(Q)touch $$($(2)_DIR)/.stamp_kconfig_fixup_done $$(Q)touch $$($(2)_DIR)/.stamp_kconfig_fixup_done
endef endef
@ -236,8 +244,7 @@ $(1)-check-configuration-done:
fi fi
$(1)-savedefconfig: $(1)-check-configuration-done $(1)-savedefconfig: $(1)-check-configuration-done
$$($(2)_MAKE_ENV) $$(MAKE) -C $$($(2)_DIR) \ $$(call kconfig-package-savedefconfig,$(2))
$$(PKG_KCONFIG_COMMON_OPTS) $$($(2)_KCONFIG_OPTS) savedefconfig
# Target to copy back the configuration to the source configuration file # Target to copy back the configuration to the source configuration file
# Even though we could use 'cp --preserve-timestamps' here, the separate # Even though we could use 'cp --preserve-timestamps' here, the separate