1 ################################################################################
5 ################################################################################
7 # This package is used to provide Linux kernel headers for the
8 # internal toolchain backend.
10 LINUX_HEADERS_VERSION = $(call qstrip,$(BR2_DEFAULT_KERNEL_HEADERS))
11 ifeq ($(findstring x2.6.,x$(LINUX_HEADERS_VERSION)),x2.6.)
12 LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v2.6
13 else ifeq ($(findstring x3.,x$(LINUX_HEADERS_VERSION)),x3.)
14 LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v3.x
15 else ifeq ($(findstring x4.,x$(LINUX_HEADERS_VERSION)),x4.)
16 LINUX_HEADERS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v4.x
18 LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.xz
20 LINUX_HEADERS_INSTALL_STAGING = YES
22 # linux-headers is part of the toolchain so disable the toolchain dependency
23 LINUX_HEADERS_ADD_TOOLCHAIN_DEPENDENCY = NO
25 # For some architectures (eg. Arc, Cris, Hexagon, ia64, parisc,
26 # score and xtensa), the Linux buildsystem tries to call the
27 # cross-compiler, although it is not needed at all.
28 # This results in seemingly errors like:
29 # [...]/scripts/gcc-version.sh: line 26: arc-linux-uclibc-gcc: command not found
30 # Those can be safely ignored.
32 # This step is required to have a separate linux headers location for
33 # uClibc building. This way uClibc doesn't modify linux headers on installation
35 define LINUX_HEADERS_CONFIGURE_CMDS
37 $(TARGET_MAKE_ENV) $(MAKE) \
40 HOSTCFLAGS="$(HOSTCFLAGS)" \
41 HOSTCXX="$(HOSTCXX)" \
45 define LINUX_HEADERS_INSTALL_STAGING_CMDS
47 $(TARGET_MAKE_ENV) $(MAKE) \
50 HOSTCFLAGS="$(HOSTCFLAGS)" \
51 HOSTCXX="$(HOSTCXX)" \
52 INSTALL_HDR_PATH=$(STAGING_DIR)/usr \
56 ifeq ($(BR2_KERNEL_HEADERS_VERSION),y)
57 define LINUX_HEADERS_CHECK_VERSION
58 $(call check_kernel_headers_version,\
60 $(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST)))
62 LINUX_HEADERS_POST_INSTALL_STAGING_HOOKS += LINUX_HEADERS_CHECK_VERSION
65 $(eval $(generic-package))