blob: 846b19663bb7bc0f48e4ec25b7bea3a50e10adb0 [file] [log] [blame]
Patrick Williamsc124f4f2015-09-15 14:41:29 -05001inherit linux-kernel-base kernel-module-split
2
Andrew Geisslerd1e89492021-02-12 15:35:20 -06003COMPATIBLE_HOST = ".*-linux"
4
Brad Bishop316dfdd2018-06-25 12:45:53 -04005KERNEL_PACKAGE_NAME ??= "kernel"
6KERNEL_DEPLOYSUBDIR ??= "${@ "" if (d.getVar("KERNEL_PACKAGE_NAME") == "kernel") else d.getVar("KERNEL_PACKAGE_NAME") }"
7
8PROVIDES += "${@ "virtual/kernel" if (d.getVar("KERNEL_PACKAGE_NAME") == "kernel") else "" }"
Andrew Geissler475cb722020-07-10 16:00:51 -05009DEPENDS += "virtual/${TARGET_PREFIX}binutils virtual/${TARGET_PREFIX}gcc kmod-native bc-native bison-native"
10DEPENDS += "${@bb.utils.contains("INITRAMFS_FSTYPES", "cpio.lzo", "lzop-native", "", d)}"
11DEPENDS += "${@bb.utils.contains("INITRAMFS_FSTYPES", "cpio.lz4", "lz4-native", "", d)}"
Brad Bishopd7bf8c12018-02-25 22:55:05 -050012PACKAGE_WRITE_DEPS += "depmodwrapper-cross"
Brad Bishop6e60e8b2018-02-01 10:27:11 -050013
Andrew Geissler475cb722020-07-10 16:00:51 -050014do_deploy[depends] += "depmodwrapper-cross:do_populate_sysroot gzip-native:do_populate_sysroot"
Brad Bishop15ae2502019-06-18 21:44:24 -040015do_clean[depends] += "make-mod-scripts:do_clean"
Brad Bishop6e60e8b2018-02-01 10:27:11 -050016
17CVE_PRODUCT ?= "linux_kernel"
Patrick Williamsc124f4f2015-09-15 14:41:29 -050018
19S = "${STAGING_KERNEL_DIR}"
20B = "${WORKDIR}/build"
21KBUILD_OUTPUT = "${B}"
22OE_TERMINAL_EXPORTS += "KBUILD_OUTPUT"
23
24# we include gcc above, we dont need virtual/libc
25INHIBIT_DEFAULT_DEPS = "1"
26
27KERNEL_IMAGETYPE ?= "zImage"
28INITRAMFS_IMAGE ?= ""
Brad Bishop6e60e8b2018-02-01 10:27:11 -050029INITRAMFS_IMAGE_NAME ?= "${@['${INITRAMFS_IMAGE}-${MACHINE}', ''][d.getVar('INITRAMFS_IMAGE') == '']}"
Patrick Williamsc124f4f2015-09-15 14:41:29 -050030INITRAMFS_TASK ?= ""
31INITRAMFS_IMAGE_BUNDLE ?= ""
32
He Zhefe76b1e2016-05-25 04:47:16 -040033# KERNEL_VERSION is extracted from source code. It is evaluated as
34# None for the first parsing, since the code has not been fetched.
35# After the code is fetched, it will be evaluated as real version
36# number and cause kernel to be rebuilt. To avoid this, make
37# KERNEL_VERSION_NAME and KERNEL_VERSION_PKG_NAME depend on
38# LINUX_VERSION which is a constant.
Brad Bishop6e60e8b2018-02-01 10:27:11 -050039KERNEL_VERSION_NAME = "${@d.getVar('KERNEL_VERSION') or ""}"
He Zhefe76b1e2016-05-25 04:47:16 -040040KERNEL_VERSION_NAME[vardepvalue] = "${LINUX_VERSION}"
Brad Bishop6e60e8b2018-02-01 10:27:11 -050041KERNEL_VERSION_PKG_NAME = "${@legitimize_package_name(d.getVar('KERNEL_VERSION'))}"
He Zhefe76b1e2016-05-25 04:47:16 -040042KERNEL_VERSION_PKG_NAME[vardepvalue] = "${LINUX_VERSION}"
43
Patrick Williamsc124f4f2015-09-15 14:41:29 -050044python __anonymous () {
Brad Bishop316dfdd2018-06-25 12:45:53 -040045 pn = d.getVar("PN")
46 kpn = d.getVar("KERNEL_PACKAGE_NAME")
47
48 # XXX Remove this after bug 11905 is resolved
49 # FILES_${KERNEL_PACKAGE_NAME}-dev doesn't expand correctly
50 if kpn == pn:
51 bb.warn("Some packages (E.g. *-dev) might be missing due to "
52 "bug 11905 (variable KERNEL_PACKAGE_NAME == PN)")
53
54 # The default kernel recipe builds in a shared location defined by
55 # bitbake/distro confs: STAGING_KERNEL_DIR and STAGING_KERNEL_BUILDDIR.
56 # Set these variables to directories under ${WORKDIR} in alternate
57 # kernel recipes (I.e. where KERNEL_PACKAGE_NAME != kernel) so that they
58 # may build in parallel with the default kernel without clobbering.
59 if kpn != "kernel":
60 workdir = d.getVar("WORKDIR")
61 sourceDir = os.path.join(workdir, 'kernel-source')
62 artifactsDir = os.path.join(workdir, 'kernel-build-artifacts')
63 d.setVar("STAGING_KERNEL_DIR", sourceDir)
64 d.setVar("STAGING_KERNEL_BUILDDIR", artifactsDir)
Patrick Williamsc124f4f2015-09-15 14:41:29 -050065
He Zhefe76b1e2016-05-25 04:47:16 -040066 # Merge KERNEL_IMAGETYPE and KERNEL_ALT_IMAGETYPE into KERNEL_IMAGETYPES
Brad Bishop6e60e8b2018-02-01 10:27:11 -050067 type = d.getVar('KERNEL_IMAGETYPE') or ""
68 alttype = d.getVar('KERNEL_ALT_IMAGETYPE') or ""
69 types = d.getVar('KERNEL_IMAGETYPES') or ""
He Zhefe76b1e2016-05-25 04:47:16 -040070 if type not in types.split():
71 types = (type + ' ' + types).strip()
72 if alttype not in types.split():
73 types = (alttype + ' ' + types).strip()
74 d.setVar('KERNEL_IMAGETYPES', types)
Patrick Williamsc124f4f2015-09-15 14:41:29 -050075
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080076 # KERNEL_IMAGETYPES may contain a mixture of image types supported directly
77 # by the kernel build system and types which are created by post-processing
78 # the output of the kernel build system (e.g. compressing vmlinux ->
79 # vmlinux.gz in kernel_do_compile()).
80 # KERNEL_IMAGETYPE_FOR_MAKE should contain only image types supported
81 # directly by the kernel build system.
82 if not d.getVar('KERNEL_IMAGETYPE_FOR_MAKE'):
83 typeformake = set()
84 for type in types.split():
85 if type == 'vmlinux.gz':
86 type = 'vmlinux'
87 typeformake.add(type)
88
89 d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', ' '.join(sorted(typeformake)))
90
91 kname = d.getVar('KERNEL_PACKAGE_NAME') or "kernel"
92 imagedest = d.getVar('KERNEL_IMAGEDEST')
He Zhefe76b1e2016-05-25 04:47:16 -040093
Brad Bishop37a0e4d2017-12-04 01:01:44 -050094 for type in types.split():
Andrew Geissler5f350902021-07-23 13:09:54 -040095 if bb.data.inherits_class('nopackages', d):
96 continue
He Zhefe76b1e2016-05-25 04:47:16 -040097 typelower = type.lower()
Brad Bishop316dfdd2018-06-25 12:45:53 -040098 d.appendVar('PACKAGES', ' %s-image-%s' % (kname, typelower))
Brad Bishop316dfdd2018-06-25 12:45:53 -040099 d.setVar('FILES_' + kname + '-image-' + typelower, '/' + imagedest + '/' + type + '-${KERNEL_VERSION_NAME}' + ' /' + imagedest + '/' + type)
Brad Bishop316dfdd2018-06-25 12:45:53 -0400100 d.appendVar('RDEPENDS_%s-image' % kname, ' %s-image-%s' % (kname, typelower))
Brad Bishop316dfdd2018-06-25 12:45:53 -0400101 d.setVar('PKG_%s-image-%s' % (kname,typelower), '%s-image-%s-${KERNEL_VERSION_PKG_NAME}' % (kname, typelower))
Brad Bishop316dfdd2018-06-25 12:45:53 -0400102 d.setVar('ALLOW_EMPTY_%s-image-%s' % (kname, typelower), '1')
Andrew Geissler475cb722020-07-10 16:00:51 -0500103 d.setVar('pkg_postinst_%s-image-%s' % (kname,typelower), """set +e
104if [ -n "$D" ]; then
105 ln -sf %s-${KERNEL_VERSION} $D/${KERNEL_IMAGEDEST}/%s > /dev/null 2>&1
106else
107 ln -sf %s-${KERNEL_VERSION} ${KERNEL_IMAGEDEST}/%s > /dev/null 2>&1
108 if [ $? -ne 0 ]; then
109 echo "Filesystem on ${KERNEL_IMAGEDEST}/ doesn't support symlinks, falling back to copied image (%s)."
110 install -m 0644 ${KERNEL_IMAGEDEST}/%s-${KERNEL_VERSION} ${KERNEL_IMAGEDEST}/%s
111 fi
112fi
113set -e
114""" % (type, type, type, type, type, type, type))
115 d.setVar('pkg_postrm_%s-image-%s' % (kname,typelower), """set +e
116if [ -f "${KERNEL_IMAGEDEST}/%s" -o -L "${KERNEL_IMAGEDEST}/%s" ]; then
117 rm -f ${KERNEL_IMAGEDEST}/%s > /dev/null 2>&1
118fi
119set -e
120""" % (type, type, type))
121
He Zhefe76b1e2016-05-25 04:47:16 -0400122
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500123 image = d.getVar('INITRAMFS_IMAGE')
Brad Bishop79641f22019-09-10 07:20:22 -0400124 # If the INTIRAMFS_IMAGE is set but the INITRAMFS_IMAGE_BUNDLE is set to 0,
125 # the do_bundle_initramfs does nothing, but the INITRAMFS_IMAGE is built
126 # standalone for use by wic and other tools.
127 if image:
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500128 d.appendVarFlag('do_bundle_initramfs', 'depends', ' ${INITRAMFS_IMAGE}:do_image_complete')
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500129
130 # NOTE: setting INITRAMFS_TASK is for backward compatibility
131 # The preferred method is to set INITRAMFS_IMAGE, because
132 # this INITRAMFS_TASK has circular dependency problems
133 # if the initramfs requires kernel modules
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500134 image_task = d.getVar('INITRAMFS_TASK')
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500135 if image_task:
136 d.appendVarFlag('do_configure', 'depends', ' ${INITRAMFS_TASK}')
137}
138
139# Here we pull in all various kernel image types which we support.
140#
141# In case you're wondering why kernel.bbclass inherits the other image
142# types instead of the other way around, the reason for that is to
143# maintain compatibility with various currently existing meta-layers.
144# By pulling in the various kernel image types here, we retain the
145# original behavior of kernel.bbclass, so no meta-layers should get
146# broken.
147#
148# KERNEL_CLASSES by default pulls in kernel-uimage.bbclass, since this
149# used to be the default behavior when only uImage was supported. This
150# variable can be appended by users who implement support for new kernel
151# image types.
152
153KERNEL_CLASSES ?= " kernel-uimage "
154inherit ${KERNEL_CLASSES}
155
156# Old style kernels may set ${S} = ${WORKDIR}/git for example
157# We need to move these over to STAGING_KERNEL_DIR. We can't just
158# create the symlink in advance as the git fetcher can't cope with
159# the symlink.
160do_unpack[cleandirs] += " ${S} ${STAGING_KERNEL_DIR} ${B} ${STAGING_KERNEL_BUILDDIR}"
161do_clean[cleandirs] += " ${S} ${STAGING_KERNEL_DIR} ${B} ${STAGING_KERNEL_BUILDDIR}"
Brad Bishopc342db32019-05-15 21:57:59 -0400162python do_symlink_kernsrc () {
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500163 s = d.getVar("S")
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500164 if s[-1] == '/':
165 # drop trailing slash, so that os.symlink(kernsrc, s) doesn't use s as directory name and fail
166 s=s[:-1]
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500167 kernsrc = d.getVar("STAGING_KERNEL_DIR")
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500168 if s != kernsrc:
169 bb.utils.mkdirhier(kernsrc)
170 bb.utils.remove(kernsrc, recurse=True)
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500171 if d.getVar("EXTERNALSRC"):
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500172 # With EXTERNALSRC S will not be wiped so we can symlink to it
173 os.symlink(s, kernsrc)
174 else:
175 import shutil
176 shutil.move(s, kernsrc)
177 os.symlink(kernsrc, s)
178}
Andrew Geisslerc3d88e42020-10-02 09:45:00 -0500179# do_patch is normally ordered before do_configure, but
180# externalsrc.bbclass deletes do_patch, breaking the dependency of
181# do_configure on do_symlink_kernsrc.
182addtask symlink_kernsrc before do_patch do_configure after do_unpack
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500183
184inherit kernel-arch deploy
185
Brad Bishop316dfdd2018-06-25 12:45:53 -0400186PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-module-.*"
187PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-image-.*"
188PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-firmware-.*"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500189
190export OS = "${TARGET_OS}"
191export CROSS_COMPILE = "${TARGET_PREFIX}"
Brad Bishop316dfdd2018-06-25 12:45:53 -0400192export KBUILD_BUILD_VERSION = "1"
Brad Bishop977dc1a2019-02-06 16:01:43 -0500193export KBUILD_BUILD_USER ?= "oe-user"
194export KBUILD_BUILD_HOST ?= "oe-host"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500195
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500196KERNEL_RELEASE ?= "${KERNEL_VERSION}"
197
He Zhefe76b1e2016-05-25 04:47:16 -0400198# The directory where built kernel lies in the kernel tree
199KERNEL_OUTPUT_DIR ?= "arch/${ARCH}/boot"
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800200KERNEL_IMAGEDEST ?= "boot"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500201
202#
203# configuration
204#
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500205export CMDLINE_CONSOLE = "console=${@d.getVar("KERNEL_CONSOLE") or "ttyS0"}"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500206
207KERNEL_VERSION = "${@get_kernelversion_headers('${B}')}"
208
209KERNEL_LOCALVERSION ?= ""
210
211# kernels are generally machine specific
212PACKAGE_ARCH = "${MACHINE_ARCH}"
213
214# U-Boot support
215UBOOT_ENTRYPOINT ?= "20008000"
216UBOOT_LOADADDRESS ?= "${UBOOT_ENTRYPOINT}"
217
218# Some Linux kernel configurations need additional parameters on the command line
219KERNEL_EXTRA_ARGS ?= ""
220
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500221EXTRA_OEMAKE = " HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}" HOSTCPP="${BUILD_CPP}""
Andrew Geissler635e0e42020-08-21 15:58:33 -0500222EXTRA_OEMAKE += " HOSTCXX="${BUILD_CXX} ${BUILD_CXXFLAGS} ${BUILD_LDFLAGS}""
223
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500224KERNEL_ALT_IMAGETYPE ??= ""
225
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500226copy_initramfs() {
227 echo "Copying initramfs into ./usr ..."
228 # In case the directory is not created yet from the first pass compile:
229 mkdir -p ${B}/usr
230 # Find and use the first initramfs image archive type we find
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500231 rm -f ${B}/usr/${INITRAMFS_IMAGE_NAME}.cpio
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500232 for img in cpio cpio.gz cpio.lz4 cpio.lzo cpio.lzma cpio.xz; do
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500233 if [ -e "${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.$img" ]; then
234 cp ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.$img ${B}/usr/.
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500235 case $img in
236 *gz)
237 echo "gzip decompressing image"
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500238 gunzip -f ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500239 break
240 ;;
241 *lz4)
242 echo "lz4 decompressing image"
Andrew Geissler475cb722020-07-10 16:00:51 -0500243 lz4 -df ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img ${B}/usr/${INITRAMFS_IMAGE_NAME}.cpio
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500244 break
245 ;;
246 *lzo)
247 echo "lzo decompressing image"
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500248 lzop -df ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500249 break
250 ;;
251 *lzma)
252 echo "lzma decompressing image"
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500253 lzma -df ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500254 break
255 ;;
256 *xz)
257 echo "xz decompressing image"
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500258 xz -df ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500259 break
260 ;;
261 esac
Brad Bishopf8caae32019-03-25 13:13:56 -0400262 break
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500263 fi
264 done
Brad Bishopf8caae32019-03-25 13:13:56 -0400265 # Verify that the above loop found a initramfs, fail otherwise
266 [ -f ${B}/usr/${INITRAMFS_IMAGE_NAME}.cpio ] && echo "Finished copy of initramfs into ./usr" || die "Could not find any ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.cpio{.gz|.lz4|.lzo|.lzma|.xz) for bundling; INITRAMFS_IMAGE_NAME might be wrong."
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500267}
268
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500269do_bundle_initramfs () {
270 if [ ! -z "${INITRAMFS_IMAGE}" -a x"${INITRAMFS_IMAGE_BUNDLE}" = x1 ]; then
271 echo "Creating a kernel image with a bundled initramfs..."
272 copy_initramfs
He Zhefe76b1e2016-05-25 04:47:16 -0400273 # Backing up kernel image relies on its type(regular file or symbolic link)
274 tmp_path=""
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800275 for imageType in ${KERNEL_IMAGETYPE_FOR_MAKE} ; do
276 if [ -h ${KERNEL_OUTPUT_DIR}/$imageType ] ; then
277 linkpath=`readlink -n ${KERNEL_OUTPUT_DIR}/$imageType`
278 realpath=`readlink -fn ${KERNEL_OUTPUT_DIR}/$imageType`
He Zhefe76b1e2016-05-25 04:47:16 -0400279 mv -f $realpath $realpath.bak
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800280 tmp_path=$tmp_path" "$imageType"#"$linkpath"#"$realpath
281 elif [ -f ${KERNEL_OUTPUT_DIR}/$imageType ]; then
282 mv -f ${KERNEL_OUTPUT_DIR}/$imageType ${KERNEL_OUTPUT_DIR}/$imageType.bak
283 tmp_path=$tmp_path" "$imageType"##"
He Zhefe76b1e2016-05-25 04:47:16 -0400284 fi
285 done
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500286 use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE_NAME}.cpio
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500287 kernel_do_compile
He Zhefe76b1e2016-05-25 04:47:16 -0400288 # Restoring kernel image
289 for tp in $tmp_path ; do
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800290 imageType=`echo $tp|cut -d "#" -f 1`
He Zhefe76b1e2016-05-25 04:47:16 -0400291 linkpath=`echo $tp|cut -d "#" -f 2`
292 realpath=`echo $tp|cut -d "#" -f 3`
293 if [ -n "$realpath" ]; then
294 mv -f $realpath $realpath.initramfs
295 mv -f $realpath.bak $realpath
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800296 ln -sf $linkpath.initramfs ${B}/${KERNEL_OUTPUT_DIR}/$imageType.initramfs
He Zhefe76b1e2016-05-25 04:47:16 -0400297 else
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800298 mv -f ${KERNEL_OUTPUT_DIR}/$imageType ${KERNEL_OUTPUT_DIR}/$imageType.initramfs
299 mv -f ${KERNEL_OUTPUT_DIR}/$imageType.bak ${KERNEL_OUTPUT_DIR}/$imageType
He Zhefe76b1e2016-05-25 04:47:16 -0400300 fi
301 done
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500302 fi
303}
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600304do_bundle_initramfs[dirs] = "${B}"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500305
306python do_devshell_prepend () {
307 os.environ["LDFLAGS"] = ''
308}
309
310addtask bundle_initramfs after do_install before do_deploy
311
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500312get_cc_option () {
313 # Check if KERNEL_CC supports the option "file-prefix-map".
314 # This option allows us to build images with __FILE__ values that do not
315 # contain the host build path.
316 if ${KERNEL_CC} -Q --help=joined | grep -q "\-ffile-prefix-map=<old=new>"; then
317 echo "-ffile-prefix-map=${S}=/kernel-source/"
318 fi
319}
320
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500321kernel_do_compile() {
322 unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
Brad Bishop316dfdd2018-06-25 12:45:53 -0400323 if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500324 # kernel sources do not use do_unpack, so SOURCE_DATE_EPOCH may not
325 # be set....
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800326 if [ "${SOURCE_DATE_EPOCH}" = "" -o "${SOURCE_DATE_EPOCH}" = "0" ]; then
Andrew Geissler82c905d2020-04-13 13:39:40 -0500327 # The source directory is not necessarily a git repository, so we
328 # specify the git-dir to ensure that git does not query a
329 # repository in any parent directory.
330 SOURCE_DATE_EPOCH=`git --git-dir="${S}/.git" log -1 --pretty=%ct 2>/dev/null || echo "${REPRODUCIBLE_TIMESTAMP_ROOTFS}"`
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500331 fi
332
333 ts=`LC_ALL=C date -d @$SOURCE_DATE_EPOCH`
334 export KBUILD_BUILD_TIMESTAMP="$ts"
335 export KCONFIG_NOTIMESTAMP=1
336 bbnote "KBUILD_BUILD_TIMESTAMP: $ts"
337 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500338 # The $use_alternate_initrd is only set from
339 # do_bundle_initramfs() This variable is specifically for the
340 # case where we are making a second pass at the kernel
341 # compilation and we want to force the kernel build to use a
342 # different initramfs image. The way to do that in the kernel
343 # is to specify:
344 # make ...args... CONFIG_INITRAMFS_SOURCE=some_other_initramfs.cpio
345 if [ "$use_alternate_initrd" = "" ] && [ "${INITRAMFS_TASK}" != "" ] ; then
346 # The old style way of copying an prebuilt image and building it
347 # is turned on via INTIRAMFS_TASK != ""
348 copy_initramfs
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500349 use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE_NAME}.cpio
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500350 fi
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500351 cc_extra=$(get_cc_option)
He Zhefe76b1e2016-05-25 04:47:16 -0400352 for typeformake in ${KERNEL_IMAGETYPE_FOR_MAKE} ; do
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500353 oe_runmake ${typeformake} CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} $use_alternate_initrd
He Zhefe76b1e2016-05-25 04:47:16 -0400354 done
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500355 # vmlinux.gz is not built by kernel
356 if (echo "${KERNEL_IMAGETYPES}" | grep -wq "vmlinux\.gz"); then
357 mkdir -p "${KERNEL_OUTPUT_DIR}"
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500358 gzip -9cn < ${B}/vmlinux > "${KERNEL_OUTPUT_DIR}/vmlinux.gz"
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500359 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500360}
361
362do_compile_kernelmodules() {
363 unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
Andrew Geissler1e34c2d2020-05-29 16:02:59 -0500364 if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
365 # kernel sources do not use do_unpack, so SOURCE_DATE_EPOCH may not
366 # be set....
367 if [ "${SOURCE_DATE_EPOCH}" = "" -o "${SOURCE_DATE_EPOCH}" = "0" ]; then
368 # The source directory is not necessarily a git repository, so we
369 # specify the git-dir to ensure that git does not query a
370 # repository in any parent directory.
371 SOURCE_DATE_EPOCH=`git --git-dir="${S}/.git" log -1 --pretty=%ct 2>/dev/null || echo "${REPRODUCIBLE_TIMESTAMP_ROOTFS}"`
372 fi
373
374 ts=`LC_ALL=C date -d @$SOURCE_DATE_EPOCH`
375 export KBUILD_BUILD_TIMESTAMP="$ts"
376 export KCONFIG_NOTIMESTAMP=1
377 bbnote "KBUILD_BUILD_TIMESTAMP: $ts"
378 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500379 if (grep -q -i -e '^CONFIG_MODULES=y$' ${B}/.config); then
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500380 cc_extra=$(get_cc_option)
381 oe_runmake -C ${B} ${PARALLEL_MAKE} modules CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS}
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500382
383 # Module.symvers gets updated during the
384 # building of the kernel modules. We need to
385 # update this in the shared workdir since some
386 # external kernel modules has a dependency on
387 # other kernel modules and will look at this
388 # file to do symbol lookups
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600389 cp ${B}/Module.symvers ${STAGING_KERNEL_BUILDDIR}/
Andrew Geissler6ce62a22020-11-30 19:58:47 -0600390 # 5.10+ kernels have module.lds that we need to copy for external module builds
391 if [ -e "${B}/scripts/module.lds" ]; then
392 install -Dm 0644 ${B}/scripts/module.lds ${STAGING_KERNEL_BUILDDIR}/scripts/module.lds
393 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500394 else
395 bbnote "no modules to compile"
396 fi
397}
398addtask compile_kernelmodules after do_compile before do_strip
399
400kernel_do_install() {
401 #
402 # First install the modules
403 #
404 unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
405 if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500406 oe_runmake DEPMOD=echo MODLIB=${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION} INSTALL_FW_PATH=${D}${nonarch_base_libdir}/firmware modules_install
407 rm "${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION}/build"
408 rm "${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION}/source"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500409 # If the kernel/ directory is empty remove it to prevent QA issues
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500410 rmdir --ignore-fail-on-non-empty "${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION}/kernel"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500411 else
412 bbnote "no modules to install"
413 fi
414
415 #
416 # Install various kernel output (zImage, map file, config, module support files)
417 #
418 install -d ${D}/${KERNEL_IMAGEDEST}
419 install -d ${D}/boot
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600420
421 #
422 # When including an initramfs bundle inside a FIT image, the fitImage is created after the install task
423 # by do_assemble_fitimage_initramfs.
424 # This happens after the generation of the initramfs bundle (done by do_bundle_initramfs).
425 # So, at the level of the install task we should not try to install the fitImage. fitImage is still not
426 # generated yet.
427 # After the generation of the fitImage, the deploy task copies the fitImage from the build directory to
428 # the deploy folder.
429 #
430
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800431 for imageType in ${KERNEL_IMAGETYPES} ; do
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600432 if [ $imageType != "fitImage" ] || [ "${INITRAMFS_IMAGE_BUNDLE}" != "1" ] ; then
433 install -m 0644 ${KERNEL_OUTPUT_DIR}/$imageType ${D}/${KERNEL_IMAGEDEST}/$imageType-${KERNEL_VERSION}
434 fi
He Zhefe76b1e2016-05-25 04:47:16 -0400435 done
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600436
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500437 install -m 0644 System.map ${D}/boot/System.map-${KERNEL_VERSION}
438 install -m 0644 .config ${D}/boot/config-${KERNEL_VERSION}
439 install -m 0644 vmlinux ${D}/boot/vmlinux-${KERNEL_VERSION}
440 [ -e Module.symvers ] && install -m 0644 Module.symvers ${D}/boot/Module.symvers-${KERNEL_VERSION}
441 install -d ${D}${sysconfdir}/modules-load.d
442 install -d ${D}${sysconfdir}/modprobe.d
443}
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500444
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600445# Must be ran no earlier than after do_kernel_checkout or else Makefile won't be in ${S}/Makefile
446do_kernel_version_sanity_check() {
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500447 if [ "x${KERNEL_VERSION_SANITY_SKIP}" = "x1" ]; then
448 exit 0
449 fi
450
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600451 # The Makefile determines the kernel version shown at runtime
452 # Don't use KERNEL_VERSION because the headers it grabs the version from aren't generated until do_compile
453 VERSION=$(grep "^VERSION =" ${S}/Makefile | sed s/.*=\ *//)
454 PATCHLEVEL=$(grep "^PATCHLEVEL =" ${S}/Makefile | sed s/.*=\ *//)
455 SUBLEVEL=$(grep "^SUBLEVEL =" ${S}/Makefile | sed s/.*=\ *//)
456 EXTRAVERSION=$(grep "^EXTRAVERSION =" ${S}/Makefile | sed s/.*=\ *//)
457
458 # Build a string for regex and a plain version string
459 reg="^${VERSION}\.${PATCHLEVEL}"
460 vers="${VERSION}.${PATCHLEVEL}"
461 if [ -n "${SUBLEVEL}" ]; then
462 # Ignoring a SUBLEVEL of zero is fine
463 if [ "${SUBLEVEL}" = "0" ]; then
464 reg="${reg}(\.${SUBLEVEL})?"
465 else
466 reg="${reg}\.${SUBLEVEL}"
467 vers="${vers}.${SUBLEVEL}"
468 fi
469 fi
470 vers="${vers}${EXTRAVERSION}"
471 reg="${reg}${EXTRAVERSION}"
472
473 if [ -z `echo ${PV} | grep -E "${reg}"` ]; then
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500474 bbfatal "Package Version (${PV}) does not match of kernel being built (${vers}). Please update the PV variable to match the kernel source or set KERNEL_VERSION_SANITY_SKIP=\"1\" in your recipe."
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600475 fi
476 exit 0
477}
478
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500479addtask shared_workdir after do_compile before do_compile_kernelmodules
480addtask shared_workdir_setscene
481
482do_shared_workdir_setscene () {
483 exit 1
484}
485
486emit_depmod_pkgdata() {
487 # Stash data for depmod
Brad Bishop316dfdd2018-06-25 12:45:53 -0400488 install -d ${PKGDESTWORK}/${KERNEL_PACKAGE_NAME}-depmod/
489 echo "${KERNEL_VERSION}" > ${PKGDESTWORK}/${KERNEL_PACKAGE_NAME}-depmod/${KERNEL_PACKAGE_NAME}-abiversion
490 cp ${B}/System.map ${PKGDESTWORK}/${KERNEL_PACKAGE_NAME}-depmod/System.map-${KERNEL_VERSION}
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500491}
492
493PACKAGEFUNCS += "emit_depmod_pkgdata"
494
Brad Bishop316dfdd2018-06-25 12:45:53 -0400495do_shared_workdir[cleandirs] += " ${STAGING_KERNEL_BUILDDIR}"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500496do_shared_workdir () {
497 cd ${B}
498
499 kerneldir=${STAGING_KERNEL_BUILDDIR}
500 install -d $kerneldir
501
502 #
503 # Store the kernel version in sysroots for module-base.bbclass
504 #
505
Brad Bishop316dfdd2018-06-25 12:45:53 -0400506 echo "${KERNEL_VERSION}" > $kerneldir/${KERNEL_PACKAGE_NAME}-abiversion
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500507
508 # Copy files required for module builds
509 cp System.map $kerneldir/System.map-${KERNEL_VERSION}
Andrew Geissler475cb722020-07-10 16:00:51 -0500510 [ -e Module.symvers ] && cp Module.symvers $kerneldir/
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500511 cp .config $kerneldir/
512 mkdir -p $kerneldir/include/config
513 cp include/config/kernel.release $kerneldir/include/config/kernel.release
Brad Bishop08902b02019-08-20 09:16:51 -0400514 if [ -e certs/signing_key.x509 ]; then
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600515 # The signing_key.* files are stored in the certs/ dir in
516 # newer Linux kernels
517 mkdir -p $kerneldir/certs
518 cp certs/signing_key.* $kerneldir/certs/
519 elif [ -e signing_key.priv ]; then
520 cp signing_key.* $kerneldir/
521 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500522
523 # We can also copy over all the generated files and avoid special cases
524 # like version.h, but we've opted to keep this small until file creep starts
525 # to happen
526 if [ -e include/linux/version.h ]; then
527 mkdir -p $kerneldir/include/linux
528 cp include/linux/version.h $kerneldir/include/linux/version.h
529 fi
530
531 # As of Linux kernel version 3.0.1, the clean target removes
532 # arch/powerpc/lib/crtsavres.o which is present in
533 # KBUILD_LDFLAGS_MODULE, making it required to build external modules.
534 if [ ${ARCH} = "powerpc" ]; then
Brad Bishop316dfdd2018-06-25 12:45:53 -0400535 if [ -e arch/powerpc/lib/crtsavres.o ]; then
536 mkdir -p $kerneldir/arch/powerpc/lib/
537 cp arch/powerpc/lib/crtsavres.o $kerneldir/arch/powerpc/lib/crtsavres.o
538 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500539 fi
540
541 if [ -d include/generated ]; then
542 mkdir -p $kerneldir/include/generated/
543 cp -fR include/generated/* $kerneldir/include/generated/
544 fi
545
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500546 if [ -d arch/${ARCH}/include/generated ]; then
547 mkdir -p $kerneldir/arch/${ARCH}/include/generated/
548 cp -fR arch/${ARCH}/include/generated/* $kerneldir/arch/${ARCH}/include/generated/
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500549 fi
Brad Bishop19323692019-04-05 15:28:33 -0400550
551 if (grep -q -i -e '^CONFIG_UNWINDER_ORC=y$' $kerneldir/.config); then
552 # With CONFIG_UNWINDER_ORC (the default in 4.14), objtool is required for
553 # out-of-tree modules to be able to generate object files.
554 if [ -x tools/objtool/objtool ]; then
555 mkdir -p ${kerneldir}/tools/objtool
556 cp tools/objtool/objtool ${kerneldir}/tools/objtool/
557 fi
558 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500559}
560
561# We don't need to stage anything, not the modules/firmware since those would clash with linux-firmware
562sysroot_stage_all () {
563 :
564}
565
Andrew Geissler82c905d2020-04-13 13:39:40 -0500566KERNEL_CONFIG_COMMAND ?= "oe_runmake_call -C ${S} CC="${KERNEL_CC}" LD="${KERNEL_LD}" O=${B} olddefconfig || oe_runmake -C ${S} O=${B} CC="${KERNEL_CC}" LD="${KERNEL_LD}" oldnoconfig"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500567
He Zhefe76b1e2016-05-25 04:47:16 -0400568python check_oldest_kernel() {
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500569 oldest_kernel = d.getVar('OLDEST_KERNEL')
570 kernel_version = d.getVar('KERNEL_VERSION')
571 tclibc = d.getVar('TCLIBC')
He Zhefe76b1e2016-05-25 04:47:16 -0400572 if tclibc == 'glibc':
573 kernel_version = kernel_version.split('-', 1)[0]
574 if oldest_kernel and kernel_version:
575 if bb.utils.vercmp_string(kernel_version, oldest_kernel) < 0:
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500576 bb.warn('%s: OLDEST_KERNEL is "%s" but the version of the kernel you are building is "%s" - therefore %s as built may not be compatible with this kernel. Either set OLDEST_KERNEL to an older version, or build a newer kernel.' % (d.getVar('PN'), oldest_kernel, kernel_version, tclibc))
He Zhefe76b1e2016-05-25 04:47:16 -0400577}
578
579check_oldest_kernel[vardepsexclude] += "OLDEST_KERNEL KERNEL_VERSION"
580do_configure[prefuncs] += "check_oldest_kernel"
581
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500582kernel_do_configure() {
583 # fixes extra + in /lib/modules/2.6.37+
584 # $ scripts/setlocalversion . => +
585 # $ make kernelversion => 2.6.37
586 # $ make kernelrelease => 2.6.37+
587 touch ${B}/.scmversion ${S}/.scmversion
588
589 if [ "${S}" != "${B}" ] && [ -f "${S}/.config" ] && [ ! -f "${B}/.config" ]; then
590 mv "${S}/.config" "${B}/.config"
591 fi
592
593 # Copy defconfig to .config if .config does not exist. This allows
594 # recipes to manage the .config themselves in do_configure_prepend().
595 if [ -f "${WORKDIR}/defconfig" ] && [ ! -f "${B}/.config" ]; then
596 cp "${WORKDIR}/defconfig" "${B}/.config"
597 fi
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500598
599 ${KERNEL_CONFIG_COMMAND}
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500600}
601
602do_savedefconfig() {
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600603 bbplain "Saving defconfig to:\n${B}/defconfig"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500604 oe_runmake -C ${B} savedefconfig
605}
606do_savedefconfig[nostamp] = "1"
607addtask savedefconfig after do_configure
608
609inherit cml1
610
Andrew Geissler6ce62a22020-11-30 19:58:47 -0600611KCONFIG_CONFIG_COMMAND_append = " LD='${KERNEL_LD}' HOSTLDFLAGS='${BUILD_LDFLAGS}'"
Brad Bishop316dfdd2018-06-25 12:45:53 -0400612
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500613EXPORT_FUNCTIONS do_compile do_install do_configure
614
615# kernel-base becomes kernel-${KERNEL_VERSION}
He Zhefe76b1e2016-05-25 04:47:16 -0400616# kernel-image becomes kernel-image-${KERNEL_VERSION}
Brad Bishop316dfdd2018-06-25 12:45:53 -0400617PACKAGES = "${KERNEL_PACKAGE_NAME} ${KERNEL_PACKAGE_NAME}-base ${KERNEL_PACKAGE_NAME}-vmlinux ${KERNEL_PACKAGE_NAME}-image ${KERNEL_PACKAGE_NAME}-dev ${KERNEL_PACKAGE_NAME}-modules"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500618FILES_${PN} = ""
Brad Bishop15ae2502019-06-18 21:44:24 -0400619FILES_${KERNEL_PACKAGE_NAME}-base = "${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.order ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.builtin ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.builtin.modinfo"
Brad Bishop316dfdd2018-06-25 12:45:53 -0400620FILES_${KERNEL_PACKAGE_NAME}-image = ""
621FILES_${KERNEL_PACKAGE_NAME}-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH} ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/build"
622FILES_${KERNEL_PACKAGE_NAME}-vmlinux = "/boot/vmlinux-${KERNEL_VERSION_NAME}"
623FILES_${KERNEL_PACKAGE_NAME}-modules = ""
624RDEPENDS_${KERNEL_PACKAGE_NAME} = "${KERNEL_PACKAGE_NAME}-base"
He Zhefe76b1e2016-05-25 04:47:16 -0400625# Allow machines to override this dependency if kernel image files are
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500626# not wanted in images as standard
Brad Bishop316dfdd2018-06-25 12:45:53 -0400627RDEPENDS_${KERNEL_PACKAGE_NAME}-base ?= "${KERNEL_PACKAGE_NAME}-image"
Andrew Geissler82c905d2020-04-13 13:39:40 -0500628PKG_${KERNEL_PACKAGE_NAME}-image = "${KERNEL_PACKAGE_NAME}-image-${@legitimize_package_name(d.getVar('KERNEL_VERSION'))}"
Brad Bishop316dfdd2018-06-25 12:45:53 -0400629RDEPENDS_${KERNEL_PACKAGE_NAME}-image += "${@oe.utils.conditional('KERNEL_IMAGETYPE', 'vmlinux', '${KERNEL_PACKAGE_NAME}-vmlinux', '', d)}"
Andrew Geissler82c905d2020-04-13 13:39:40 -0500630PKG_${KERNEL_PACKAGE_NAME}-base = "${KERNEL_PACKAGE_NAME}-${@legitimize_package_name(d.getVar('KERNEL_VERSION'))}"
Brad Bishop316dfdd2018-06-25 12:45:53 -0400631RPROVIDES_${KERNEL_PACKAGE_NAME}-base += "${KERNEL_PACKAGE_NAME}-${KERNEL_VERSION}"
632ALLOW_EMPTY_${KERNEL_PACKAGE_NAME} = "1"
633ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-base = "1"
634ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-image = "1"
635ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-modules = "1"
636DESCRIPTION_${KERNEL_PACKAGE_NAME}-modules = "Kernel modules meta package"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500637
Brad Bishop316dfdd2018-06-25 12:45:53 -0400638pkg_postinst_${KERNEL_PACKAGE_NAME}-base () {
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500639 if [ ! -e "$D/lib/modules/${KERNEL_VERSION}" ]; then
640 mkdir -p $D/lib/modules/${KERNEL_VERSION}
641 fi
642 if [ -n "$D" ]; then
643 depmodwrapper -a -b $D ${KERNEL_VERSION}
644 else
645 depmod -a ${KERNEL_VERSION}
646 fi
647}
648
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500649PACKAGESPLITFUNCS_prepend = "split_kernel_packages "
650
651python split_kernel_packages () {
Brad Bishop19323692019-04-05 15:28:33 -0400652 do_split_packages(d, root='${nonarch_base_libdir}/firmware', file_regex=r'^(.*)\.(bin|fw|cis|csp|dsp)$', output_pattern='${KERNEL_PACKAGE_NAME}-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500653}
654
655# Many scripts want to look in arch/$arch/boot for the bootable
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600656# image. This poses a problem for vmlinux and vmlinuz based
657# booting. This task arranges to have vmlinux and vmlinuz appear
658# in the normalized directory location.
659do_kernel_link_images() {
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500660 if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
661 mkdir ${B}/arch/${ARCH}/boot
662 fi
663 cd ${B}/arch/${ARCH}/boot
664 ln -sf ../../../vmlinux
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600665 if [ -f ../../../vmlinuz ]; then
666 ln -sf ../../../vmlinuz
667 fi
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500668 if [ -f ../../../vmlinuz.bin ]; then
669 ln -sf ../../../vmlinuz.bin
670 fi
Andrew Geissler82c905d2020-04-13 13:39:40 -0500671 if [ -f ../../../vmlinux.64 ]; then
672 ln -sf ../../../vmlinux.64
673 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500674}
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500675addtask kernel_link_images after do_compile before do_strip
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500676
677do_strip() {
678 if [ -n "${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}" ]; then
He Zhefe76b1e2016-05-25 04:47:16 -0400679 if ! (echo "${KERNEL_IMAGETYPES}" | grep -wq "vmlinux"); then
680 bbwarn "image type(s) will not be stripped (not supported): ${KERNEL_IMAGETYPES}"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500681 return
682 fi
683
684 cd ${B}
He Zhefe76b1e2016-05-25 04:47:16 -0400685 headers=`"$CROSS_COMPILE"readelf -S ${KERNEL_OUTPUT_DIR}/vmlinux | \
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500686 grep "^ \{1,\}\[[0-9 ]\{1,\}\] [^ ]" | \
687 sed "s/^ \{1,\}\[[0-9 ]\{1,\}\] //" | \
688 gawk '{print $1}'`
689
690 for str in ${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}; do {
Patrick Williamsf1e5d692016-03-30 15:21:19 -0500691 if ! (echo "$headers" | grep -q "^$str$"); then
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500692 bbwarn "Section not found: $str";
693 fi
694
He Zhefe76b1e2016-05-25 04:47:16 -0400695 "$CROSS_COMPILE"strip -s -R $str ${KERNEL_OUTPUT_DIR}/vmlinux
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500696 }; done
697
698 bbnote "KERNEL_IMAGE_STRIP_EXTRA_SECTIONS is set, stripping sections:" \
699 "${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}"
700 fi;
701}
702do_strip[dirs] = "${B}"
703
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500704addtask strip before do_sizecheck after do_kernel_link_images
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500705
706# Support checking the kernel size since some kernels need to reside in partitions
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500707# with a fixed length or there is a limit in transferring the kernel to memory.
708# If more than one image type is enabled, warn on any that don't fit but only fail
709# if none fit.
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500710do_sizecheck() {
711 if [ ! -z "${KERNEL_IMAGE_MAXSIZE}" ]; then
712 invalid=`echo ${KERNEL_IMAGE_MAXSIZE} | sed 's/[0-9]//g'`
713 if [ -n "$invalid" ]; then
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500714 die "Invalid KERNEL_IMAGE_MAXSIZE: ${KERNEL_IMAGE_MAXSIZE}, should be an integer (The unit is Kbytes)"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500715 fi
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500716 at_least_one_fits=
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800717 for imageType in ${KERNEL_IMAGETYPES} ; do
718 size=`du -ks ${B}/${KERNEL_OUTPUT_DIR}/$imageType | awk '{print $1}'`
Andrew Geissler09036742021-06-25 14:25:14 -0500719 if [ $size -gt ${KERNEL_IMAGE_MAXSIZE} ]; then
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800720 bbwarn "This kernel $imageType (size=$size(K) > ${KERNEL_IMAGE_MAXSIZE}(K)) is too big for your device."
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500721 else
722 at_least_one_fits=y
He Zhefe76b1e2016-05-25 04:47:16 -0400723 fi
724 done
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500725 if [ -z "$at_least_one_fits" ]; then
726 die "All kernel images are too big for your device. Please reduce the size of the kernel by making more of it modular."
727 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500728 fi
729}
730do_sizecheck[dirs] = "${B}"
731
732addtask sizecheck before do_install after do_strip
733
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800734inherit kernel-artifact-names
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500735
736kernel_do_deploy() {
Brad Bishop316dfdd2018-06-25 12:45:53 -0400737 deployDir="${DEPLOYDIR}"
738 if [ -n "${KERNEL_DEPLOYSUBDIR}" ]; then
739 deployDir="${DEPLOYDIR}/${KERNEL_DEPLOYSUBDIR}"
740 mkdir "$deployDir"
741 fi
742
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800743 for imageType in ${KERNEL_IMAGETYPES} ; do
Andrew Geisslerc9f78652020-09-18 14:11:35 -0500744 baseName=$imageType-${KERNEL_IMAGE_NAME}
745 install -m 0644 ${KERNEL_OUTPUT_DIR}/$imageType $deployDir/$baseName.bin
746 ln -sf $baseName.bin $deployDir/$imageType-${KERNEL_IMAGE_LINK_NAME}.bin
747 ln -sf $baseName.bin $deployDir/$imageType
He Zhefe76b1e2016-05-25 04:47:16 -0400748 done
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800749
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500750 if [ ${MODULE_TARBALL_DEPLOY} = "1" ] && (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800751 mkdir -p ${D}${root_prefix}/lib
Andrew Geisslerc182c622020-05-15 14:13:32 -0500752 if [ -n "${SOURCE_DATE_EPOCH}" ]; then
753 TAR_ARGS="--sort=name --clamp-mtime --mtime=@${SOURCE_DATE_EPOCH}"
754 else
755 TAR_ARGS=""
756 fi
Andrew Geissler1e34c2d2020-05-29 16:02:59 -0500757 TAR_ARGS="$TAR_ARGS --owner=0 --group=0"
Andrew Geisslerc182c622020-05-15 14:13:32 -0500758 tar $TAR_ARGS -cv -C ${D}${root_prefix} lib | gzip -9n > $deployDir/modules-${MODULE_TARBALL_NAME}.tgz
759
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800760 ln -sf modules-${MODULE_TARBALL_NAME}.tgz $deployDir/modules-${MODULE_TARBALL_LINK_NAME}.tgz
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500761 fi
762
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800763 if [ ! -z "${INITRAMFS_IMAGE}" -a x"${INITRAMFS_IMAGE_BUNDLE}" = x1 ]; then
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600764 for imageType in ${KERNEL_IMAGETYPE_FOR_MAKE} ; do
Brad Bishop977dc1a2019-02-06 16:01:43 -0500765 if [ "$imageType" = "fitImage" ] ; then
766 continue
767 fi
Andrew Geisslerc9f78652020-09-18 14:11:35 -0500768 initramfsBaseName=$imageType-${INITRAMFS_NAME}
769 install -m 0644 ${KERNEL_OUTPUT_DIR}/$imageType.initramfs $deployDir/$initramfsBaseName.bin
770 ln -sf $initramfsBaseName.bin $deployDir/$imageType-${INITRAMFS_LINK_NAME}.bin
Brad Bishop1a4b7ee2018-12-16 17:11:34 -0800771 done
772 fi
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500773}
Andrew Geisslerc9f78652020-09-18 14:11:35 -0500774
775# We deploy to filenames that include PKGV and PKGR, read the saved data to
776# ensure we get the right values for both
777do_deploy[prefuncs] += "read_subpackage_metadata"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500778
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500779addtask deploy after do_populate_sysroot do_packagedata
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500780
781EXPORT_FUNCTIONS do_deploy
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500782
783# Add using Device Tree support
784inherit kernel-devicetree