1SUMMARY = "Sanitized set of kernel headers for the C library's use"
2SECTION = "devel"
3LICENSE = "GPLv2"
4
5#########################################################################
6####                        PLEASE READ
7#########################################################################
8#
9# You're probably looking here thinking you need to create some new copy
10# of linux-libc-headers since you have your own custom kernel. To put
11# this simply, you DO NOT.
12#
13# Why? These headers are used to build the libc. If you customise the
14# headers you are customising the libc and the libc becomes machine
15# specific. Most people do not add custom libc extensions to the kernel
16# and have a machine specific libc.
17#
18# But you have some kernel headers you need for some driver? That is fine
19# but get them from STAGING_KERNEL_DIR where the kernel installs itself.
20# This will make the package using them machine specific but this is much
21# better than having a machine specific C library. This does mean your
22# recipe needs a
23#    do_configure[depends] += "virtual/kernel:do_shared_workdir"
24# but again, that is fine and makes total sense.
25#
26# There can also be a case where your kernel extremely old and you want
27# an older libc ABI for that old kernel. The headers installed by this
28# recipe should still be a standard mainline kernel, not your own custom
29# one.
30#
31# -- RP
32
33LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
34
35python __anonymous () {
36    major = d.getVar("PV").split('.')[0]
37    if major == "3":
38        d.setVar("HEADER_FETCH_VER", "3.0")
39    elif major == "4":
40        d.setVar("HEADER_FETCH_VER", "4.x")
41    else:
42        d.setVar("HEADER_FETCH_VER", "2.6")
43}
44
45inherit kernel-arch pkgconfig multilib_header
46
47KORG_ARCHIVE_COMPRESSION ?= "xz"
48
49SRC_URI = "${KERNELORG_MIRROR}/linux/kernel/v${HEADER_FETCH_VER}/linux-${PV}.tar.${KORG_ARCHIVE_COMPRESSION}"
50UPSTREAM_CHECK_URI = "https://www.kernel.org/"
51
52S = "${WORKDIR}/linux-${PV}"
53
54EXTRA_OEMAKE = " HOSTCC="${BUILD_CC}" HOSTCPP="${BUILD_CPP}""
55
56do_configure() {
57	oe_runmake allnoconfig
58}
59
60do_compile () {
61}
62
63do_install() {
64	oe_runmake headers_install INSTALL_HDR_PATH=${D}${exec_prefix}
65	# Kernel should not be exporting this header
66	rm -f ${D}${exec_prefix}/include/scsi/scsi.h
67
68	# The ..install.cmd conflicts between various configure runs
69	find ${D}${includedir} -name ..install.cmd | xargs rm -f
70}
71
72do_install_append_aarch64 () {
73        do_install_armmultilib
74}
75
76do_install_append_arm () {
77	do_install_armmultilib
78}
79
80do_install_armmultilib () {
81	oe_multilib_header asm/auxvec.h asm/bitsperlong.h asm/byteorder.h asm/fcntl.h asm/hwcap.h asm/ioctls.h asm/kvm.h asm/kvm_para.h asm/mman.h asm/param.h asm/perf_regs.h asm/bpf_perf_event.h
82	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
83}
84
85BBCLASSEXTEND = "nativesdk"
86
87RDEPENDS_${PN}-dev = ""
88RRECOMMENDS_${PN}-dbg = "${PN}-dev (= ${EXTENDPKGV})"
89
90INHIBIT_DEFAULT_DEPS = "1"
91DEPENDS += "unifdef-native"
92