我想为我的RPI2 +自定义板删除一些未使用的驱动程序.为此,我通过以下方式创建自己的配置:
I like to remove some unused drivers for my RPI2 + custom board. For that I am creating an own configuration via:
bitbake linux-raspberrypi -c menuconfig并将新的内核预设保存到文件 defconfig.
and save the new kernel preset to the file defconfig.
此后,我为linux-raspberryp配方创建了一个附加文件.
After this I created an append file for the linux-raspberryp recipe.
所以我创建了文件
linux-raspberrypi%.bbappend并用以下内容填充:
FILESEXTRAPATHS_prepend := "${THISDIR}/linux-raspberrypi:" SRC_URI += "file://defconfig" PACKAGE_ARCH = "raspberrypi2"我将defconfig文件放到:
I put the defconfig file to:
<meta-mylayer>/recipes-kernel/linux/linux-raspberrypi/raspberrypi2/defconfig通过以下方式重新编译内核时:
When recompiling the kernel via:
bitbake linux-raspberrypi -c clean bitbake linux-raspberrypi采用标准RPI2配置.
The standard RPI2 configuration is taken.
任何想法如何克服这个问题?我正在研究meta-raspberrypi和yocto的实际" pyro分支.
Any idea how to overcome this problem? I am working on the "actual" pyro branch of meta-raspberrypi and yocto.
推荐答案不幸的是,最简单的方法可能是修补内核源代码……或将defconfig复制到内核树中.
Well, unfortunately, the easiest way is probably to patch the kernel source... Or copy your defconfig over the in kernel-tree one.
meta-raspberrypi 层在其内核配方中做了一些不幸的事情,尽管随着时间的流逝它变得越来越好,但它们仍然不是很好...
The meta-raspberrypi layer does some unfortunate things in their kernel recipes, and even though this has become better with time, they're still not really nice...
如果您查看 recipes-kernel/linux/linux-raspberrypi.inc ,则以下几行说明了该问题:
If you take a look at recipes-kernel/linux/linux-raspberrypi.inc, the following lines explains the issue:
KERNEL_DEFCONFIG_raspberrypi2 ?= "bcm2709_defconfig" do_kernel_configme_prepend() { install -m 0644 ${S}/arch/${ARCH}/configs/${KERNEL_DEFCONFIG} ${WORKDIR}/defconfig || die "No default configuration for ${MACHINE} / ${KERNEL_DEFCONFIG} available." }因此,他们正在将树内defconfig复制到 $ {WORKDIR}/defconfig ,从而覆盖了您自己的defconfig.
Thus,they're copying the in-tree defconfig to ${WORKDIR}/defconfig, thereby overwriting your own defconfig.
您在您的 .bbappend 中,可以尝试添加:
You in you .bbappend, you could try to add:
do_kernel_configme_prepend() { install -m 0644 ${WORKDIR}/defconfig ${S}/arch/${ARCH}/configs/${KERNEL_DEFCONFIG} || die "No default configuration for ${MACHINE} / ${KERNEL_DEFCONFIG} available." }因此,首先用您自己的 defconfig 覆盖内核树.
Thus, first overwriting the in-kernel-tree one with your own defconfig.
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