如何在yocto中应用dtsi(或dts)的补丁文件 [英] How to apply patch file of dtsi(or dts) in yocto

问题描述

我在 ubuntu 18.04 上使用 yocto(ver.rocko) 并尝试应用补丁文件，但我不能......

我的目标机器是 qemuarm64，linux 内核是 linux-yocto.

一旦执行$bitbake core-image-base，内核源文件被解压，然后目标dtsi文件位于poky/build/tmp/work/aarch64-poky-linux/linux-libc-headers/4.12-r0/linux-4.12/arch/arm64/boot/dts/arm/juno-base.dtsi

我要修补的自定义元数据文件如下:

• poky/meta-custom/recipes-kernel/linux/linux-yocto_4.12.bbappend
• poky/meta-custom/recipes-kernel/linux/files/juno-base.dtsi.patch

# poky/meta-custom/recipes-kernel/linux/linux-yocto_4.12.bbappendFILESEXTRAPATHS_prepend := "${THISDIR}/files";SRC_URI += "file://juno-base.dtsi.patch";

但是在bitbake之后，补丁文件被创建在poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0/juno-base.dtsi.patch 和补丁应用程序不起作用

我不知道怎么了，该怎么办...请让我知道我该怎么办?

解决方案

要为 Yocto 配方源创建一个简单的补丁，您可以通过简单的方式使用 git 命令:

您的 Linux 工作目录是:

<块引用>

poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0

如你所见，它已经是一个git"了.目录，这意味着它已经用 git 初始化了.

这里有清晰的步骤让您了解该方法:

在将你的补丁(juno-base.dtsi.patch)添加到 SRC_URI 后，我认为你的 linux-yocto 工作目录搞砸了，所以跟我来:

1. 清理构建

   bitbake linux-yocto -c cleansstate

2. 从 SRC_URI 中删除补丁

3. 应用任何默认补丁

   bitbake linux-yocto -c 补丁

4. 前往

<块引用>

poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0

5. 进行修改

<块引用>

poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0/arch/arm64/boot/dts/arm/juno-base.dtsi

而不是在

<块引用>

poky/build/tmp/work/aarch64-poky-linux/linux-libc-headers/4.12-r0/linux-4.12/arch/arm64/boot/dts/arm/juno-base.dtsi

6. 现在，打开终端并将目录更改为

<块引用>

poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0

7. 运行:git status(您应该看到类似:修改的 arch/arm64/boot/dts/arm/juno-base.dtsi)
8. 运行:git add arch/arm64/boot/dts/arm/juno-base.dtsi
9. 运行:git commit -m "Patch for juni base dtsi"
10. 运行:git format-patch -1

现在创建了一个名为Patch-for-juni-base-dtsi.patch"的新补丁，现在你可以将它添加到 linux-yocto_%.bbappend:

<块引用>

SRC_URI_append = "file://Patch-for-juni-base-dtsi.patch"

如果 dtsi 不存在并且您想将其添加为补丁，请在运行git status"时执行相同的操作；你会看到一个新添加的文件，用git add"添加它；并继续执行命令.

完成所有这些之后，您可以使用以下命令继续构建过程:

bitbake linux-yocto -C 补丁

或者，如果您将补丁添加到 SRC_URI，则 linux-yocto 构建将从 do_fetch 开始.

I'm using yocto(ver.rocko) on ubuntu 18.04 and trying to apply patch file but I can't...

My target machine is qemuarm64 and linux kernel is linux-yocto.

Once do $ bitbake core-image-base, kernel source files are unpacked then target dtsi file is located at poky/build/tmp/work/aarch64-poky-linux/linux-libc-headers/4.12-r0/linux-4.12/arch/arm64/boot/dts/arm/juno-base.dtsi

And my custom meta-data files to patch are below:

• poky/meta-custom/recipes-kernel/linux/linux-yocto_4.12.bbappend
• poky/meta-custom/recipes-kernel/linux/files/juno-base.dtsi.patch

# poky/meta-custom/recipes-kernel/linux/linux-yocto_4.12.bbappend

FILESEXTRAPATHS_prepend := "${THISDIR}/files"
SRC_URI += "file://juno-base.dtsi.patch"

But after bitbake, patch file is created at poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0/juno-base.dtsi.patch and patch-application doesn't work

I don't know what's wrong, what to do... Plz let me know what should I do?

解决方案

To create a simple patch for Yocto recipe sources, you can use git command in a simple way:

Your Linux work directory is:

poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0

as you can see it is already a "git" directory which means that it is intialized with git already.

Here are clear steps for you to understand the method:

After adding your patch(juno-base.dtsi.patch) to SRC_URI I think your linux-yocto work directory is messed up, so follow me:

1. Clean the build

   bitbake linux-yocto -c cleansstate

2. Remove the patch from SRC_URI

3. Apply any default patches

   bitbake linux-yocto -c patch

4. Go to

poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0

5. Make your modifications on

poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0/arch/arm64/boot/dts/arm/juno-base.dtsi

and not in

poky/build/tmp/work/aarch64-poky-linux/linux-libc-headers/4.12-r0/linux-4.12/arch/arm64/boot/dts/arm/juno-base.dtsi

6. Now, open a terminal and change directory to

poky/build/tmp/work/qemuarm64-poky-linux/linux-yocto/4.12.28+gitAUTOINC+2ae65226f6_e562267bae-r0

7. Run: git status (You should see something like: modified arch/arm64/boot/dts/arm/juno-base.dtsi)
8. Run: git add arch/arm64/boot/dts/arm/juno-base.dtsi
9. Run: git commit -m "Patch for juni base dtsi"
10. Run: git format-patch -1

Now a new patch is created with the name "Patch-for-juni-base-dtsi.patch", Now you can add it to linux-yocto_%.bbappend:

SRC_URI_append = " file://Patch-for-juni-base-dtsi.patch"

If the dtsi is not exist and you want to add it as a patch, do the same thing, when you run "git status" you will see a new added file, add it with "git add" and continue the commands.

After all of this, you can continue the build process with:

bitbake linux-yocto -C patch

Or, if you add the patch to SRC_URI the linux-yocto build will start from do_fetch.

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