Eric Lee / meta-smarcfimx7-morty

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recipes-kernel/linux-libc-headers/linux-libc-headers.inc 2.46 KB
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28a08477b   Eric Lee   Yocto morty meta ... 
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  SUMMARY = "Sanitized set of kernel headers for the C library's use"
  SECTION = "devel"
  LICENSE = "GPLv2"
  
  #########################################################################
  ####                        PLEASE READ 
  #########################################################################
  #
  # You're probably looking here thinking you need to create some new copy
  # of linux-libc-headers since you have your own custom kernel. To put 
  # this simply, you DO NOT.
  #
  # Why? These headers are used to build the libc. If you customise the 
  # headers you are customising the libc and the libc becomes machine
  # specific. Most people do not add custom libc extensions to the kernel
  # and have a machine specific libc.
  #
  # But you have some kernel headers you need for some driver? That is fine
  # but get them from STAGING_KERNEL_DIR where the kernel installs itself.
  # This will make the package using them machine specific but this is much
  # better than having a machine specific C library. This does mean your
  # recipe needs a
  #    do_configure[depends] += "virtual/kernel:do_shared_workdir"
  # but again, that is fine and makes total sense.
  #
  # There can also be a case where your kernel extremely old and you want
  # an older libc ABI for that old kernel. The headers installed by this
  # recipe should still be a standard mainline kernel, not your own custom 
  # one.
  #
  # -- RP
  
  LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
  
  python __anonymous () {
      major = d.getVar("PV",True).split('.')[0]
      if major == "3":
          d.setVar("HEADER_FETCH_VER", "3.0")
      elif major == "4":
          d.setVar("HEADER_FETCH_VER", "4.x")
      else:
          d.setVar("HEADER_FETCH_VER", "2.6")
  }
  
  inherit kernel-arch
  
  KORG_ARCHIVE_COMPRESSION ?= "xz"
  
  SRC_URI = "${KERNELORG_MIRROR}/linux/kernel/v${HEADER_FETCH_VER}/linux-${PV}.tar.${KORG_ARCHIVE_COMPRESSION}"
  
  S = "${WORKDIR}/linux-${PV}"
  
  EXTRA_OEMAKE = " HOSTCC="${BUILD_CC}" HOSTCPP="${BUILD_CPP}""
  
  do_configure() {
  	oe_runmake allnoconfig
  }
  
  do_compile () {
  }
  
  do_install() {
  	oe_runmake headers_install INSTALL_HDR_PATH=${D}${exec_prefix}
  	# Kernel should not be exporting this header
  	rm -f ${D}${exec_prefix}/include/scsi/scsi.h
  
  	# The ..install.cmd conflicts between various configure runs
  	find ${D}${includedir} -name ..install.cmd | xargs rm -f
  }
  
  BBCLASSEXTEND = "nativesdk"
  
  #DEPENDS = "cross-linkage"
  RDEPENDS_${PN}-dev = ""
  RRECOMMENDS_${PN}-dbg = "${PN}-dev (= ${EXTENDPKGV})"
  
  INHIBIT_DEFAULT_DEPS = "1"
  DEPENDS += "unifdef-native"