dd8a410eaf
The variable 'KERNEL_ARCH' is actually a normalized version of
'ARCH'/'BR2_ARCH'. For example, 'arcle' and 'arceb' both become 'arc', just
as all powerpc variants become 'powerpc'.
It is presumably called 'KERNEL_ARCH' because the Linux kernel is typically
the first place where support for a new architecture is added, and thus is
the entity that defines the normalized name.
However, the term 'KERNEL_ARCH' can also be interpreted as 'the architecture
used by the kernel', which need not be exactly the same as 'the normalized
name for a certain arch'. In particular, for cases where a 64-bit
architecture is running a 64-bit kernel but 32-bit userspace. Examples
include:
* aarch64 architecture, with aarch64 kernel and 32-bit (ARM) userspace
* x86_64 architecture, with x86_64 kernel and 32-bit (i386) userspace
In such cases, the 'architecture used by the kernel' needs to refer to the
64-bit name (aarch64, x86_64), whereas all userspace applications need to
refer the, potentially normalized, 32-bit name.
This means that there need to be two different variables:
KERNEL_ARCH: the architecture used by the kernel
NORMALIZED_ARCH: the normalized name for the current userspace architecture
At this moment, both will actually have the same content. But a subsequent
patch will add basic support for situations described above, in which
KERNEL_ARCH may become overwritten to the 64-bit architecture, while
NORMALIZED_ARCH needs to remain the same (32-bit) case.
This commit replaces use of KERNEL_ARCH where actually the userspace arch is
needed. Places that use KERNEL_ARCH in combination with building of kernel
modules are not touched.
There may be cases where a package builds both a kernel module as userspace,
in which case it may need to know about both KERNEL_ARCH and
NORMALIZED_ARCH, for the case where they differ. But this is to be fixed on
a per-need basis.
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
[Arnout: Also rename BR2_KERNEL_ARCH to BR2_NORMALIZED_ARCH]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
179 lines
5.9 KiB
Makefile
179 lines
5.9 KiB
Makefile
################################################################################
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#
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# barebox
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#
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################################################################################
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################################################################################
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# inner-barebox-package -- generates the KConfig logic and make targets needed
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# to support a barebox package. All barebox packages are built from the same
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# source (origin, version and patches). The remainder of the package
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# configuration is unique to each barebox package.
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#
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# argument 1 is the uppercase package name (used for variable name-space)
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################################################################################
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define inner-barebox-package
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$(1)_VERSION = $$(call qstrip,$$(BR2_TARGET_BAREBOX_VERSION))
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ifeq ($$($(1)_VERSION),custom)
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# Handle custom Barebox tarballs as specified by the configuration
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$(1)_TARBALL = $$(call qstrip,$$(BR2_TARGET_BAREBOX_CUSTOM_TARBALL_LOCATION))
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$(1)_SITE = $$(patsubst %/,%,$$(dir $$($(1)_TARBALL)))
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$(1)_SOURCE = $$(notdir $$($(1)_TARBALL))
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else ifeq ($$(BR2_TARGET_BAREBOX_CUSTOM_GIT),y)
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$(1)_SITE = $$(call qstrip,$$(BR2_TARGET_BAREBOX_CUSTOM_GIT_REPO_URL))
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$(1)_SITE_METHOD = git
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# Override the default value of _SOURCE to 'barebox-*' so that it is not
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# downloaded a second time for barebox-aux; also alows avoiding the hash
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# check:
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$(1)_SOURCE = barebox-$$($(1)_VERSION)$$(BR_FMT_VERSION_git).tar.gz
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else
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# Handle stable official Barebox versions
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$(1)_SOURCE = barebox-$$($(1)_VERSION).tar.bz2
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$(1)_SITE = https://www.barebox.org/download
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endif
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$(1)_DL_SUBDIR = barebox
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$(1)_DEPENDENCIES = host-lzop
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$(1)_LICENSE = GPL-2.0 with exceptions
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ifeq ($(BR2_TARGET_BAREBOX_LATEST_VERSION),y)
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$(1)_LICENSE_FILES = COPYING
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endif
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$(1)_CUSTOM_EMBEDDED_ENV_PATH = $$(call qstrip,$$(BR2_TARGET_$(1)_CUSTOM_EMBEDDED_ENV_PATH))
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ifneq ($$(call qstrip,$$(BR2_TARGET_BAREBOX_CUSTOM_PATCH_DIR)),)
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define $(1)_APPLY_CUSTOM_PATCHES
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$$(APPLY_PATCHES) $$(@D) \
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$$(BR2_TARGET_BAREBOX_CUSTOM_PATCH_DIR) \*.patch
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endef
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$(1)_POST_PATCH_HOOKS += $(1)_APPLY_CUSTOM_PATCHES
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endif
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$(1)_INSTALL_IMAGES = YES
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ifneq ($$(BR2_TARGET_$(1)_BAREBOXENV),y)
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$(1)_INSTALL_TARGET = NO
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endif
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ifeq ($$(NORMALIZED_ARCH),i386)
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$(1)_ARCH = x86
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else ifeq ($$(NORMALIZED_ARCH),x86_64)
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$(1)_ARCH = x86
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else ifeq ($$(NORMALIZED_ARCH),powerpc)
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$(1)_ARCH = ppc
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else ifeq ($$(NORMALIZED_ARCH),arm64)
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$(1)_ARCH = arm
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else
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$(1)_ARCH = $$(NORMALIZED_ARCH)
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endif
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$(1)_MAKE_FLAGS = ARCH=$$($(1)_ARCH) CROSS_COMPILE="$$(TARGET_CROSS)"
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$(1)_MAKE_ENV = $$(TARGET_MAKE_ENV)
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ifeq ($$(BR2_TARGET_$(1)_USE_DEFCONFIG),y)
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$(1)_KCONFIG_DEFCONFIG = $$(call qstrip,$$(BR2_TARGET_$(1)_BOARD_DEFCONFIG))_defconfig
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else ifeq ($$(BR2_TARGET_$(1)_USE_CUSTOM_CONFIG),y)
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$(1)_KCONFIG_FILE = $$(call qstrip,$$(BR2_TARGET_$(1)_CUSTOM_CONFIG_FILE))
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endif
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$(1)_KCONFIG_FRAGMENT_FILES = $$(call qstrip,$$(BR2_TARGET_$(1)_CONFIG_FRAGMENT_FILES))
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$(1)_KCONFIG_EDITORS = menuconfig xconfig gconfig nconfig
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$(1)_KCONFIG_OPTS = $$($(1)_MAKE_FLAGS)
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$(1)_KCONFIG_DEPENDENCIES = \
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$(BR2_BISON_HOST_DEPENDENCY) \
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$(BR2_FLEX_HOST_DEPENDENCY)
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ifeq ($$(BR2_TARGET_$(1)_CUSTOM_ENV),y)
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$(1)_ENV_NAME = $$(notdir $$(call qstrip,\
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$$(BR2_TARGET_$(1)_CUSTOM_ENV_PATH)))
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define $(1)_BUILD_CUSTOM_ENV
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$$(@D)/scripts/bareboxenv -s \
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$$(call qstrip, $$(BR2_TARGET_$(1)_CUSTOM_ENV_PATH)) \
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$$(@D)/$$($(1)_ENV_NAME)
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endef
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define $(1)_INSTALL_CUSTOM_ENV
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cp $$(@D)/$$($(1)_ENV_NAME) $$(BINARIES_DIR)
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endef
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endif
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ifneq ($$($(1)_CUSTOM_EMBEDDED_ENV_PATH),)
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define $(1)_KCONFIG_FIXUP_CUSTOM_EMBEDDED_ENV_PATH
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$$(call KCONFIG_ENABLE_OPT,CONFIG_DEFAULT_ENVIRONMENT)
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$$(call KCONFIG_SET_OPT,CONFIG_DEFAULT_ENVIRONMENT_PATH,"$$($(1)_CUSTOM_EMBEDDED_ENV_PATH)")
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endef
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endif
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define $(1)_KCONFIG_FIXUP_BAREBOXENV
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$$(if $$(BR2_TARGET_$(1)_BAREBOXENV),\
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$$(call KCONFIG_ENABLE_OPT,CONFIG_BAREBOXENV_TARGET),\
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$$(call KCONFIG_DISABLE_OPT,CONFIG_BAREBOXENV_TARGET))
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endef
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define $(1)_KCONFIG_FIXUP_CMDS
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$$($(1)_KCONFIG_FIXUP_CUSTOM_EMBEDDED_ENV_PATH)
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$$($(1)_KCONFIG_FIXUP_BAREBOXENV)
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endef
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define $(1)_BUILD_CMDS
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$$($(1)_BUILD_BAREBOXENV_CMDS)
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$$(TARGET_MAKE_ENV) $$(MAKE) $$($(1)_MAKE_FLAGS) -C $$(@D)
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$$($(1)_BUILD_CUSTOM_ENV)
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endef
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$(1)_IMAGE_FILES = $$(call qstrip,$$(BR2_TARGET_$(1)_IMAGE_FILE))
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define $(1)_INSTALL_IMAGES_CMDS
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if test -n "$$($(1)_IMAGE_FILES)"; then \
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cp -L $$(foreach image,$$($(1)_IMAGE_FILES),$$(@D)/$$(image)) $$(BINARIES_DIR) ; \
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elif test -h $$(@D)/barebox-flash-image ; then \
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cp -L $$(@D)/barebox-flash-image $$(BINARIES_DIR)/barebox.bin ; \
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else \
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cp $$(@D)/barebox.bin $$(BINARIES_DIR);\
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fi
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$$($(1)_INSTALL_CUSTOM_ENV)
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endef
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# Starting with barebox v2020.09.0, the kconfig used calls the
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# cross-compiler to check its capabilities. So we need the
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# toolchain before we can call the configurators.
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$(1)_KCONFIG_DEPENDENCIES += toolchain
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ifeq ($$(BR2_TARGET_$(1)_BAREBOXENV),y)
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define $(1)_INSTALL_TARGET_CMDS
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cp $$(@D)/scripts/bareboxenv-target $$(TARGET_DIR)/usr/bin/bareboxenv
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endef
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endif
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# Checks to give errors that the user can understand
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# Must be before we call to kconfig-package
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ifeq ($$(BR2_TARGET_$(1))$$(BR_BUILDING),yy)
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# We must use the user-supplied kconfig value, because
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# $(1)_KCONFIG_DEFCONFIG will at least contain the
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# trailing _defconfig
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ifeq ($$(or $$($(1)_KCONFIG_FILE),$$(call qstrip,$$(BR2_TARGET_$(1)_BOARD_DEFCONFIG))),)
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$$(error No Barebox config. Check your BR2_TARGET_$(1)_BOARD_DEFCONFIG or BR2_TARGET_$(1)_CUSTOM_CONFIG_FILE settings)
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endif
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endif
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$$(eval $$(kconfig-package))
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endef
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################################################################################
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# barebox-package -- the target generator macro for barebox packages
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################################################################################
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barebox-package=$(call inner-barebox-package,$(call UPPERCASE,$(pkgname)))
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include boot/barebox/barebox/barebox.mk
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include boot/barebox/barebox-aux/barebox-aux.mk
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ifeq ($(BR2_TARGET_BAREBOX)$(BR2_TARGET_BAREBOX_LATEST_VERSION),y)
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BR_NO_CHECK_HASH_FOR += $(BAREBOX_SOURCE)
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endif
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