管理树外内核模块

all: modules
obj-m := hello.o

SRC := $(shell pwd)

modules:
	$(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules $(KBUILD_OPTIONS)

modules_install:
	$(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install

DESCRIPTION = "${SUMMARY}"
LICENSE = "GPL-2.0-only"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/${LICENSE};md5=801f80980d171dd6425610833a22dbe6"

inherit module

SRC_URI += "file://Makefile \
            file://hello.c  \
            file://COPYING  \
            "
S = "${WORKDIR}"

EXTRA_OEMAKE += "MACHINE='${MACHINE}'"
MAKE_TARGETS = "modules"
MODULES_INSTALL_TARGET = "modules_install"

# Autoload the module on boot
KERNEL_MODULE_AUTOLOAD += "hello"

# The inherit of module.bbclass names packages with the "kernel-module-" prefix
RPROVIDES_${PN} += "kernel-module-hello"

inherit module

DESCRIPTION = "Qualcomm KGSL driver for managing Adreno GPU"
LICENSE = "GPL-2.0-only"
LIC_FILES_CHKSUM = "file://adreno.c;beginline=1;endline=1;md5=fcab174c20ea2e2bc0be64b493708266"

PV = "0.0+git"
SRCREV = "553c972604f739564d6bb70e18e3857c041984b1"
SRC_URI = " \
    git://github.com/qualcomm-linux/kgsl.git;branch=gfx-kernel.le.0.0;protocol=https \
    file://kgsl.rules \
"

do_install:append() {
    install -m 0644 ${WORKDIR}/sources/kgsl.rules -D ${D}${nonarch_base_libdir}/udev/rules.d/kgsl.rules
}

KERNEL_MODULE_PROBECONF += "msm_kgsl"
module_conf_msm_kgsl = "blacklist msm_kgsl"

FILES:${PN} += "${nonarch_base_libdir}/udev/rules.d"

COMPATIBLE_MACHINE = "^$"
COMPATIBLE_MACHINE:aarch64 = "(.*)"

zcat /proc/config.gz | grep CONFIG_MODVERSIONS

insmod: ERROR: could not insert module hello.ko: Invalid module format

modinfo hello.ko | grep vermagic

DEPENDS += "virtual/kernel"
RDEPENDS_${PN} += "kernel-${KERNEL_VERSION}"