1SUMMARY = "Sanitized set of kernel headers for the C library's use" 2HOMEPAGE = "https://www.kernel.org/" 3DESCRIPTION = "Designed to maintain an Application Programming Interface (API) stable version of the Linux headers" 4SECTION = "devel" 5LICENSE = "GPL-2.0-only" 6 7######################################################################### 8#### PLEASE READ 9######################################################################### 10# 11# You're probably looking here thinking you need to create some new copy 12# of linux-libc-headers since you have your own custom kernel. To put 13# this simply, you DO NOT. 14# 15# Why? These headers are used to build the libc. If you customise the 16# headers you are customising the libc and the libc becomes machine 17# specific. Most people do not add custom libc extensions to the kernel 18# and have a machine specific libc. 19# 20# But you have some kernel headers you need for some driver? That is fine 21# but get them from STAGING_KERNEL_BUILDDIR where the kernel installs itself. 22# This will make the package using them machine specific but this is much 23# better than having a machine specific C library. This does mean your 24# recipe needs a 25# do_configure[depends] += "virtual/kernel:do_shared_workdir" 26# but again, that is fine and makes total sense. 27# 28# There can also be a case where your kernel extremely old and you want 29# an older libc ABI for that old kernel. The headers installed by this 30# recipe should still be a standard mainline kernel, not your own custom 31# one. 32# 33# -- RP 34 35LIC_FILES_CHKSUM ?= "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814" 36 37RECIPE_NO_UPDATE_REASON = "Recipe is updated through a separate process" 38 39python __anonymous () { 40 major = d.getVar("PV").split('.')[0] 41 if major == "3": 42 d.setVar("HEADER_FETCH_VER", "3.0") 43 elif major == "4": 44 d.setVar("HEADER_FETCH_VER", "4.x") 45 elif major == "5": 46 d.setVar("HEADER_FETCH_VER", "5.x") 47 else: 48 d.setVar("HEADER_FETCH_VER", "2.6") 49} 50 51MAJ_VER = "${@oe.utils.trim_version("${PV}", 2).split('.')[0]}" 52MIN_VER = "${@oe.utils.trim_version("${PV}", 2).split('.')[1]}" 53 54inherit kernel-arch pkgconfig multilib_header 55 56KORG_ARCHIVE_COMPRESSION ?= "xz" 57 58SRC_URI = "${KERNELORG_MIRROR}/linux/kernel/v${HEADER_FETCH_VER}/linux-${PV}.tar.${KORG_ARCHIVE_COMPRESSION}" 59UPSTREAM_CHECK_URI = "https://www.kernel.org/" 60 61S = "${WORKDIR}/linux-${PV}" 62 63EXTRA_OEMAKE = " HOSTCC="${BUILD_CC}" HOSTCPP="${BUILD_CPP}"" 64 65do_configure[noexec] = "1" 66 67do_compile[noexec] = "1" 68 69do_install() { 70 oe_runmake headers_install INSTALL_HDR_PATH=${D}${exec_prefix} 71 # Kernel should not be exporting this header 72 rm -f ${D}${exec_prefix}/include/scsi/scsi.h 73 74 # The ..install.cmd conflicts between various configure runs 75 find ${D}${includedir} -name ..install.cmd | xargs rm -f 76} 77 78do_install:append:aarch64 () { 79 do_install_armmultilib 80} 81 82do_install:append:arm () { 83 do_install_armmultilib 84} 85 86do_install:append:armeb () { 87 do_install_armmultilib 88} 89 90do_install_armmultilib () { 91 if [ ${MAJ_VER} -gt 5 ]; then 92 ARM_KVM_HEADER="" 93 else 94 if [ ${MAJ_VER} -eq 5 ] && [ ${MIN_VER} -ge 8 ]; then 95 ARM_KVM_HEADER="" 96 else 97 ARM_KVM_HEADER="asm/kvm.h" 98 fi 99 fi 100 oe_multilib_header asm/auxvec.h asm/bitsperlong.h asm/byteorder.h asm/fcntl.h asm/hwcap.h asm/ioctls.h $ARM_KVM_HEADER asm/kvm_para.h asm/mman.h asm/param.h asm/perf_regs.h asm/bpf_perf_event.h 101 oe_multilib_header asm/posix_types.h asm/ptrace.h asm/setup.h asm/sigcontext.h asm/siginfo.h asm/signal.h asm/stat.h asm/statfs.h asm/swab.h asm/types.h asm/unistd.h 102} 103 104BBCLASSEXTEND = "nativesdk" 105 106RDEPENDS:${PN}-dev = "" 107RRECOMMENDS:${PN}-dbg = "${PN}-dev (= ${EXTENDPKGV})" 108 109INHIBIT_DEFAULT_DEPS = "1" 110DEPENDS += "unifdef-native bison-native rsync-native" 111