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- ################################################################################
- #
- # linux-headers
- #
- ################################################################################
- # This package is used to provide Linux kernel headers for the
- # internal toolchain backend.
- # Set variables depending on whether we are using headers from a kernel
- # build or a standalone header package.
- ifeq ($(BR2_KERNEL_HEADERS_AS_KERNEL),y)
- LINUX_HEADERS_CUSTOM_TARBALL = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_TARBALL))
- LINUX_HEADERS_CUSTOM_GIT = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_GIT))
- LINUX_HEADERS_CUSTOM_HG = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_HG))
- LINUX_HEADERS_CUSTOM_SVN = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_SVN))
- LINUX_HEADERS_VERSION = $(call qstrip,$(BR2_LINUX_KERNEL_VERSION))
- LINUX_HEADERS_CUSTOM_TARBALL_LOCATION = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION))
- LINUX_HEADERS_REPO_URL = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL))
- else # ! BR2_KERNEL_HEADERS_AS_KERNEL
- LINUX_HEADERS_CUSTOM_TARBALL = $(call qstrip,$(BR2_KERNEL_HEADERS_CUSTOM_TARBALL))
- LINUX_HEADERS_CUSTOM_GIT = $(call qstrip,$(BR2_KERNEL_HEADERS_CUSTOM_GIT))
- LINUX_HEADERS_CUSTOM_HG =
- LINUX_HEADERS_CUSTOM_SVN =
- LINUX_HEADERS_VERSION = $(call qstrip,$(BR2_DEFAULT_KERNEL_HEADERS))
- LINUX_HEADERS_CUSTOM_TARBALL_LOCATION = $(call qstrip,$(BR2_KERNEL_HEADERS_CUSTOM_TARBALL_LOCATION))
- LINUX_HEADERS_REPO_URL = $(call qstrip,$(BR2_KERNEL_HEADERS_CUSTOM_REPO_URL))
- endif # BR2_KERNEL_HEADERS_AS_KERNEL
- # Compute LINUX_HEADERS_SOURCE and LINUX_HEADERS_SITE from the configuration
- ifeq ($(LINUX_HEADERS_CUSTOM_TARBALL),y)
- LINUX_HEADERS_SOURCE = $(notdir $(LINUX_HEADERS_CUSTOM_TARBALL_LOCATION))
- LINUX_HEADERS_SITE = $(patsubst %/,%,$(dir $(LINUX_HEADERS_CUSTOM_TARBALL_LOCATION)))
- else ifeq ($(LINUX_HEADERS_CUSTOM_GIT),y)
- LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.gz
- LINUX_HEADERS_SITE = $(LINUX_HEADERS_REPO_URL)
- LINUX_HEADERS_SITE_METHOD = git
- else ifeq ($(LINUX_HEADERS_CUSTOM_HG),y)
- LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.gz
- LINUX_HEADERS_SITE = $(LINUX_HEADERS_REPO_URL)
- LINUX_HEADERS_SITE_METHOD = hg
- else ifeq ($(LINUX_HEADERS_CUSTOM_SVN),y)
- LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.gz
- LINUX_HEADERS_SITE = $(LINUX_HEADERS_REPO_URL)
- LINUX_HEADERS_SITE_METHOD = svn
- else ifneq ($(findstring -rc,$(LINUX_HEADERS_VERSION)),)
- # Since 4.12-rc1, -rc kernels are generated from cgit. This also works for
- # older -rc kernels.
- LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.gz
- LINUX_HEADERS_SITE = https://git.kernel.org/torvalds/t
- else
- LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.xz
- ifeq ($(findstring x2.6.,x$(LINUX_HEADERS_VERSION)),x2.6.)
- LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v2.6
- else
- LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v$(firstword $(subst ., ,$(LINUX_HEADERS_VERSION))).x
- endif # x2.6
- endif # LINUX_HEADERS_CUSTOM_TARBALL
- # Apply any necessary patches if we are using the headers from a kernel
- # build.
- ifeq ($(BR2_KERNEL_HEADERS_AS_KERNEL),y)
- LINUX_HEADERS_PATCHES = $(call qstrip,$(BR2_LINUX_KERNEL_PATCH)) \
- $(wildcard $(addsuffix /linux,$(call qstrip,$(BR2_GLOBAL_PATCH_DIR))))
- # We rely on the generic package infrastructure to download and apply
- # remote patches (downloaded from ftp, http or https). For local
- # patches, we can't rely on that infrastructure, because there might
- # be directories in the patch list (unlike for other packages).
- LINUX_HEADERS_PATCH = $(filter ftp://% http://% https://%,$(LINUX_HEADERS_PATCHES))
- define LINUX_HEADERS_APPLY_LOCAL_PATCHES
- for p in $(filter-out ftp://% http://% https://%,$(LINUX_HEADERS_PATCHES)) ; do \
- if test -d $$p ; then \
- $(APPLY_PATCHES) $(@D) $$p \*.patch || exit 1 ; \
- else \
- $(APPLY_PATCHES) $(@D) `dirname $$p` `basename $$p` || exit 1; \
- fi \
- done
- endef
- LINUX_HEADERS_POST_PATCH_HOOKS += LINUX_HEADERS_APPLY_LOCAL_PATCHES
- endif # BR2_KERNEL_HEADERS_AS_KERNEL
- # Skip hash checking for custom kernel headers.
- ifeq ($(BR2_KERNEL_HEADERS_VERSION)$(BR2_KERNEL_HEADERS_CUSTOM_TARBALL)$(BR2_KERNEL_HEADERS_CUSTOM_GIT),y)
- BR_NO_CHECK_HASH_FOR += $(LINUX_HEADERS_SOURCE)
- endif
- # linux-headers really is the same as the linux package
- LINUX_HEADERS_DL_SUBDIR = linux
- LINUX_HEADERS_LICENSE = GPL-2.0
- LINUX_HEADERS_LICENSE_FILES = COPYING
- LINUX_HEADERS_INSTALL_STAGING = YES
- # linux-headers is part of the toolchain so disable the toolchain dependency
- LINUX_HEADERS_ADD_TOOLCHAIN_DEPENDENCY = NO
- # For some architectures (eg. Arc, Cris, Hexagon, ia64, parisc,
- # score and xtensa), the Linux buildsystem tries to call the
- # cross-compiler, although it is not needed at all.
- # This results in seemingly errors like:
- # [...]/scripts/gcc-version.sh: line 26: arc-linux-uclibc-gcc: command not found
- # Those can be safely ignored.
- # This step is required to have a separate linux headers location for
- # uClibc building. This way uClibc doesn't modify linux headers on installation
- # of "its" headers
- define LINUX_HEADERS_CONFIGURE_CMDS
- (cd $(@D); \
- $(TARGET_MAKE_ENV) $(MAKE) \
- ARCH=$(KERNEL_ARCH) \
- HOSTCC="$(HOSTCC)" \
- HOSTCFLAGS="$(HOSTCFLAGS)" \
- HOSTCXX="$(HOSTCXX)" \
- INSTALL_HDR_PATH=$(@D)/usr \
- headers_install)
- endef
- define LINUX_HEADERS_INSTALL_STAGING_CMDS
- (cd $(@D); \
- $(TARGET_MAKE_ENV) $(MAKE) \
- ARCH=$(KERNEL_ARCH) \
- HOSTCC="$(HOSTCC)" \
- HOSTCFLAGS="$(HOSTCFLAGS)" \
- HOSTCXX="$(HOSTCXX)" \
- INSTALL_HDR_PATH=$(STAGING_DIR)/usr \
- headers_install)
- endef
- ifeq ($(BR2_KERNEL_HEADERS_VERSION)$(BR2_KERNEL_HEADERS_AS_KERNEL)$(BR2_KERNEL_HEADERS_CUSTOM_TARBALL)$(BR2_KERNEL_HEADERS_CUSTOM_GIT),y)
- define LINUX_HEADERS_CHECK_VERSION
- $(call check_kernel_headers_version,\
- $(BUILD_DIR),\
- $(STAGING_DIR),\
- $(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST)))
- endef
- LINUX_HEADERS_POST_INSTALL_STAGING_HOOKS += LINUX_HEADERS_CHECK_VERSION
- endif
- $(eval $(generic-package))
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