poky/meta/classes-recipe/module.bbclass
Alon Bar-Lev 483c6067eb module.bbclass: add KBUILD_EXTRA_SYMBOLS to install
Symbols are used during install as well, adding KBUILD_EXTRA_SYMBOLS enables
successful installation.

    | DEBUG: Executing shell function do_install
    | NOTE: make -j 22 KERNEL_SRC=xxx/kernel-source -C xxx/drivers
    KDIR=xxx/kernel-source DEPMOD=echo
    MODLIB=xxx/image/lib/modules/6.6.75-yocto-standard-00189-g530c419bc9db
    INSTALL_FW_PATH=xxx/image/lib/firmware CC=aarch64-poky-linux-gcc
    -fuse-ld=bfd -fcanon-prefix-map  LD=aarch64-poky-linux-ld.bfd
    OBJCOPY=aarch64-poky-linux-objcopy  STRIP=aarch64-poky-linux-strip
    O=xxx/kernel-build-artifacts modules_install
    | make: Entering directory 'xxx/drivers'
    | make -C xxx/kernel-source M=xxx/drivers modules
    | make[1]: Entering directory 'xxx/kernel-source'
    | make[2]: Entering directory 'xxx/kernel-build-artifacts'
    |   MODPOST xxx/drivers/Module.symvers
    | ERROR: modpost: "xxx" [xxx/xxx.ko] undefined!

(From OE-Core rev: 0ef80eeda967a9e04ff91c3583aabbc35c9868e8)

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2025-05-08 10:28:19 +01:00

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#
# Copyright OpenEmbedded Contributors
#
# SPDX-License-Identifier: MIT
#
inherit module-base kernel-module-split pkgconfig
EXTRA_OEMAKE += "KERNEL_SRC=${STAGING_KERNEL_DIR}"
MODULES_INSTALL_TARGET ?= "modules_install"
MODULES_MODULE_SYMVERS_LOCATION ?= ""
python __anonymous () {
depends = d.getVar('DEPENDS')
extra_symbols = []
for dep in depends.split():
if dep.startswith("kernel-module-"):
extra_symbols.append("${STAGING_INCDIR}/" + dep + "/Module.symvers")
d.setVar('KBUILD_EXTRA_SYMBOLS', " ".join(extra_symbols))
}
python do_package:prepend () {
os.environ['STRIP'] = d.getVar('KERNEL_STRIP')
}
python do_devshell:prepend () {
os.environ['CFLAGS'] = ''
os.environ['CPPFLAGS'] = ''
os.environ['CXXFLAGS'] = ''
os.environ['LDFLAGS'] = ''
os.environ['KERNEL_PATH'] = d.getVar('STAGING_KERNEL_DIR')
os.environ['KERNEL_SRC'] = d.getVar('STAGING_KERNEL_DIR')
os.environ['KERNEL_VERSION'] = d.getVar('KERNEL_VERSION')
os.environ['CC'] = d.getVar('KERNEL_CC')
os.environ['LD'] = d.getVar('KERNEL_LD')
os.environ['AR'] = d.getVar('KERNEL_AR')
os.environ['OBJCOPY'] = d.getVar('KERNEL_OBJCOPY')
os.environ['STRIP'] = d.getVar('KERNEL_STRIP')
os.environ['O'] = d.getVar('STAGING_KERNEL_BUILDDIR')
kbuild_extra_symbols = d.getVar('KBUILD_EXTRA_SYMBOLS')
if kbuild_extra_symbols:
os.environ['KBUILD_EXTRA_SYMBOLS'] = kbuild_extra_symbols
else:
os.environ['KBUILD_EXTRA_SYMBOLS'] = ''
}
module_do_compile() {
unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
oe_runmake KERNEL_PATH=${STAGING_KERNEL_DIR} \
KERNEL_VERSION=${KERNEL_VERSION} \
CC="${KERNEL_CC}" LD="${KERNEL_LD}" \
AR="${KERNEL_AR}" OBJCOPY="${KERNEL_OBJCOPY}" \
STRIP="${KERNEL_STRIP}" \
O=${STAGING_KERNEL_BUILDDIR} \
KBUILD_EXTRA_SYMBOLS="${KBUILD_EXTRA_SYMBOLS}" \
${MAKE_TARGETS}
}
module_do_install() {
unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
oe_runmake DEPMOD=echo MODLIB="${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION}" \
INSTALL_FW_PATH="${D}${nonarch_base_libdir}/firmware" \
CC="${KERNEL_CC}" LD="${KERNEL_LD}" OBJCOPY="${KERNEL_OBJCOPY}" \
STRIP="${KERNEL_STRIP}" \
O=${STAGING_KERNEL_BUILDDIR} \
KBUILD_EXTRA_SYMBOLS="${KBUILD_EXTRA_SYMBOLS}" \
${MODULES_INSTALL_TARGET}
if [ ! -e "${B}/${MODULES_MODULE_SYMVERS_LOCATION}/Module.symvers" ] ; then
bbwarn "Module.symvers not found in ${B}/${MODULES_MODULE_SYMVERS_LOCATION}"
bbwarn "Please consider setting MODULES_MODULE_SYMVERS_LOCATION to a"
bbwarn "directory below B to get correct inter-module dependencies"
else
install -Dm0644 "${B}/${MODULES_MODULE_SYMVERS_LOCATION}"/Module.symvers ${D}${includedir}/${BPN}/Module.symvers
# Module.symvers contains absolute path to the build directory.
# While it doesn't actually seem to matter which path is specified,
# clear them out to avoid confusion
sed -e 's:${B}/::g' -i ${D}${includedir}/${BPN}/Module.symvers
fi
}
EXPORT_FUNCTIONS do_compile do_install
# add all splitted modules to PN RDEPENDS, PN can be empty now
KERNEL_MODULES_META_PACKAGE = "${PN}"
FILES:${PN} = ""
ALLOW_EMPTY:${PN} = "1"