buildroot

################################################################################

#

# linux-headers

#

################################################################################

​

# This package is used to provide Linux kernel headers for the

# internal toolchain backend.

​

ifeq ($(BR2_KERNEL_HEADERS_AS_KERNEL),y)

​

LINUX_HEADERS_VERSION = $(call qstrip,$(BR2_LINUX_KERNEL_VERSION))

​

# Compute LINUX_HEADERS_SOURCE and LINUX_HEADERS_SITE from the configuration

ifeq ($(BR2_LINUX_KERNEL_CUSTOM_TARBALL),y)

LINUX_HEADERS_TARBALL = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION))

LINUX_HEADERS_SITE = $(patsubst %/,%,$(dir $(LINUX_HEADERS_TARBALL)))

LINUX_HEADERS_SOURCE = $(notdir $(LINUX_HEADERS_TARBALL))

else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_GIT),y)

LINUX_HEADERS_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL))

LINUX_HEADERS_SITE_METHOD = git

# use same git tarball as linux kernel

LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.gz

else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_HG),y)

LINUX_HEADERS_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL))

LINUX_HEADERS_SITE_METHOD = hg

# use same hg tarball as linux kernel

LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.gz

else

LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.xz

# In X.Y.Z, get X and Y. We replace dots and dashes by spaces in order

# to use the $(word) function. We support versions such as 4.0, 3.1,

# 2.6.32, 2.6.32-rc1, 3.0-rc6, etc.

ifeq ($(findstring x2.6.,x$(LINUX_HEADERS_VERSION)),x2.6.)

LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v2.6

else ifeq ($(findstring x3.,x$(LINUX_HEADERS_VERSION)),x3.)

LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v3.x

else ifeq ($(findstring x4.,x$(LINUX_HEADERS_VERSION)),x4.)

LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v4.x

endif

# release candidates are in testing/ subdir

ifneq ($(findstring -rc,$(LINUX_HEADERS_VERSION)),)

LINUX_HEADERS_SITE := $(LINUX_HEADERS_SITE)/testing

endif # -rc

endif

​

LINUX_HEADERS_PATCHES = $(call qstrip,$(BR2_LINUX_KERNEL_PATCH))

​

# 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

​

else # ! BR2_KERNEL_HEADERS_AS_KERNEL

​

LINUX_HEADERS_VERSION = $(call qstrip,$(BR2_DEFAULT_KERNEL_HEADERS))

ifeq ($(findstring x2.6.,x$(LINUX_HEADERS_VERSION)),x2.6.)

LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v2.6

else ifeq ($(findstring x3.,x$(LINUX_HEADERS_VERSION)),x3.)

LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v3.x

else ifeq ($(findstring x4.,x$(LINUX_HEADERS_VERSION)),x4.)

LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v4.x

endif

LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.xz

​

ifeq ($(BR2_KERNEL_HEADERS_VERSION),y)

BR_NO_CHECK_HASH_FOR += $(LINUX_HEADERS_SOURCE)

endif

​

endif # ! BR2_KERNEL_HEADERS_AS_KERNEL

​

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

​