cirros-testvm/src-cirros/buildroot-2015.05/package/linux-headers/linux-headers.mk

   1 ################################################################################
   2 #
   3 # linux-headers
   4 #
   5 ################################################################################
   6
   7 # This package is used to provide Linux kernel headers for the
   8 # internal toolchain backend.
   9
  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 = $(BR2_KERNEL_MIRROR)/linux/kernel/v4.x
  17 endif
  18 LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.xz
  19
  20 LINUX_HEADERS_INSTALL_STAGING = YES
  21
  22 # linux-headers is part of the toolchain so disable the toolchain dependency
  23 LINUX_HEADERS_ADD_TOOLCHAIN_DEPENDENCY = NO
  24
  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.
  31
  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
  34 # of "its" headers
  35 define LINUX_HEADERS_CONFIGURE_CMDS
  36         (cd $(@D); \
  37                 $(TARGET_MAKE_ENV) $(MAKE) \
  38                         ARCH=$(KERNEL_ARCH) \
  39                         HOSTCC="$(HOSTCC)" \
  40                         HOSTCFLAGS="$(HOSTCFLAGS)" \
  41                         HOSTCXX="$(HOSTCXX)" \
  42                         headers_install)
  43 endef
  44
  45 define LINUX_HEADERS_INSTALL_STAGING_CMDS
  46         (cd $(@D); \
  47                 $(TARGET_MAKE_ENV) $(MAKE) \
  48                         ARCH=$(KERNEL_ARCH) \
  49                         HOSTCC="$(HOSTCC)" \
  50                         HOSTCFLAGS="$(HOSTCFLAGS)" \
  51                         HOSTCXX="$(HOSTCXX)" \
  52                         INSTALL_HDR_PATH=$(STAGING_DIR)/usr \
  53                         headers_install)
  54 endef
  55
  56 ifeq ($(BR2_KERNEL_HEADERS_VERSION),y)
  57 define LINUX_HEADERS_CHECK_VERSION
  58         $(call check_kernel_headers_version,\
  59                 $(STAGING_DIR),\
  60                 $(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST)))
  61 endef
  62 LINUX_HEADERS_POST_INSTALL_STAGING_HOOKS += LINUX_HEADERS_CHECK_VERSION
  63 endif
  64
  65 $(eval $(generic-package))