1SUMMARY = "Linux kernel"
2SECTION = "kernel"
3LICENSE = "GPL-2.0-only"
4HOMEPAGE = "https://www.yoctoproject.org/"
5
6LIC_FILES_CHKSUM ?= "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
7
8UPSTREAM_CHECK_GITTAGREGEX = "(?P<pver>\d+\.\d+(\.\d+)*)"
9
10RECIPE_NO_UPDATE_REASON = "Recipe is updated through a separate process"
11
12# Skip processing of this recipe if it is not explicitly specified as the
13# PREFERRED_PROVIDER for virtual/kernel. This avoids network access required
14# by the use of AUTOREV SRCREVs, which are the default for this recipe.
15python () {
16    if d.getVar("KERNEL_PACKAGE_NAME") == "kernel" and d.getVar("PREFERRED_PROVIDER_virtual/kernel") != d.getVar("PN"):
17        d.delVar("BB_DONT_CACHE")
18        raise bb.parse.SkipRecipe("Set PREFERRED_PROVIDER_virtual/kernel to %s to enable it" % (d.getVar("PN")))
19}
20
21DEPENDS += "xz-native bc-native"
22DEPENDS:append:aarch64 = " libgcc"
23KERNEL_CC:append:aarch64 = " ${TOOLCHAIN_OPTIONS}"
24KERNEL_LD:append:aarch64 = " ${TOOLCHAIN_OPTIONS}"
25
26DEPENDS:append:nios2 = " libgcc"
27KERNEL_CC:append:nios2 = " ${TOOLCHAIN_OPTIONS}"
28KERNEL_LD:append:nios2 = " ${TOOLCHAIN_OPTIONS}"
29
30DEPENDS:append:arc = " libgcc"
31KERNEL_CC:append:arc = " ${TOOLCHAIN_OPTIONS}"
32KERNEL_LD:append:arc = " ${TOOLCHAIN_OPTIONS}"
33
34KERNEL_FEATURES:append:qemuall=" features/debug/printk.scc features/taskstats/taskstats.scc"
35
36KERNEL_FEATURES:append = " ${@bb.utils.contains('MACHINE_FEATURES', 'efi', 'cfg/efi.scc', '', d)}"
37KERNEL_FEATURES:append = " ${@bb.utils.contains('MACHINE_FEATURES', 'numa', 'features/numa/numa.scc', '', d)}"
38KERNEL_FEATURES:append = " ${@bb.utils.contains('MACHINE_FEATURES', 'vfat', 'cfg/fs/vfat.scc', '', d)}"
39
40# A KMACHINE is the mapping of a yocto $MACHINE to what is built
41# by the kernel. This is typically the branch that should be built,
42# and it can be specific to the machine or shared
43# KMACHINE = "UNDEFINED"
44
45LINUX_VERSION_EXTENSION ??= "-yocto-${LINUX_KERNEL_TYPE}"
46
47# Pick up shared functions
48inherit kernel
49inherit kernel-yocto
50
51B = "${WORKDIR}/linux-${PACKAGE_ARCH}-${LINUX_KERNEL_TYPE}-build"
52
53do_install:append(){
54	if [ -n "${KMETA}" ]; then
55		rm -rf ${STAGING_KERNEL_DIR}/${KMETA}
56	fi
57}
58
59# enable kernel-sample for oeqa/runtime/cases's ksample.py test
60KERNEL_FEATURES:append:qemuall=" features/kernel-sample/kernel-sample.scc"
61
62KERNEL_DEBUG ?= ""
63# These used to be version specific, but are now common dependencies.  New
64# tools / dependencies will continue to be added in version specific recipes.
65DEPENDS += '${@bb.utils.contains_any("ARCH", [ "x86", "arm64", "powerpc" ], "elfutils-native", "", d)}'
66DEPENDS += "openssl-native util-linux-native"
67DEPENDS += "gmp-native libmpc-native"
68
69# Some options depend on CONFIG_PAHOLE_VERSION, so need to make pahole-native available before do_kernel_configme
70do_kernel_configme[depends] += '${@bb.utils.contains("KERNEL_DEBUG", "True", "pahole-native:do_populate_sysroot", "", d)}'
71
72EXTRA_OEMAKE += '${@bb.utils.contains("KERNEL_DEBUG", "True", "", "PAHOLE=false", d)}'
73
74do_devshell:prepend() {
75    # setup native pkg-config variables (kconfig scripts call pkg-config directly, cannot generically be overriden to pkg-config-native)
76    d.setVar("PKG_CONFIG_DIR", "${STAGING_DIR_NATIVE}${libdir_native}/pkgconfig")
77    d.setVar("PKG_CONFIG_PATH", "${PKG_CONFIG_DIR}:${STAGING_DATADIR_NATIVE}/pkgconfig")
78    d.setVar("PKG_CONFIG_LIBDIR", "${PKG_CONFIG_DIR}")
79    d.setVarFlag("PKG_CONFIG_SYSROOT_DIR", "unexport", "1")
80    d.appendVar("OE_TERMINAL_EXPORTS", " PKG_CONFIG_DIR PKG_CONFIG_PATH PKG_CONFIG_LIBDIR PKG_CONFIG_SYSROOT_DIR")
81}
82