Android Linux内核编译

末蓝、 2022-08-06 10:08 182阅读 0赞

平台：

Wind7\_64 + Ubuntu12\_04\_64 + VMware

这里以Android5.0为例：

**Android5.0 可以到这里下载：**  
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[http://115.com/lb/5lbd7crtk1wz][http_115.com_lb_5lbd7crtk1wz]

**Linux\_source\_goldfish 可以到这里下载：**  
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[http://115.com/lb/5lbd76rru5or][http_115.com_lb_5lbd76rru5or]

**Android5.0的编译可以参考：**

遇到的问题

[http://www.cnblogs.com/pengdonglin137/p/4197969.html][http_www.cnblogs.com_pengdonglin137_p_4197969.html]

需要使用openjdk7

apt-get install openjdk-7-jdk
    apt-get install openjdk-7-jre

编译：

![复制代码][copycode.gif]

root@ubuntu:~/work/android/android5/android-5.0# . build/envsetup.sh 
    including device/moto/shamu/vendorsetup.sh
    including device/samsung/manta/vendorsetup.sh
    including device/generic/mini-emulator-x86/vendorsetup.sh
    including device/generic/mini-emulator-arm64/vendorsetup.sh
    including device/generic/mini-emulator-mips/vendorsetup.sh
    including device/generic/mini-emulator-x86_64/vendorsetup.sh
    including device/generic/mini-emulator-armv7-a-neon/vendorsetup.sh
    including device/lge/mako/vendorsetup.sh
    including device/lge/hammerhead/vendorsetup.sh
    including device/asus/tilapia/vendorsetup.sh
    including device/asus/deb/vendorsetup.sh
    including device/asus/grouper/vendorsetup.sh
    including device/asus/flo/vendorsetup.sh
    including device/asus/fugu/vendorsetup.sh
    including sdk/bash_completion/adb.bash
    root@ubuntu:~/work/android/android5/android-5.0# choosecombo 
    Build type choices are:
         1. release
         2. debug
    
    Which would you like? [1] 1
    
    
    Which product would you like? [full] 
    
    
    Variant choices are:
         1. user
         2. userdebug
         3. eng
    Which would you like? [eng] 
    
    ============================================
    PLATFORM_VERSION_CODENAME=REL
    PLATFORM_VERSION=5.0
    TARGET_PRODUCT=full
    TARGET_BUILD_VARIANT=eng
    TARGET_BUILD_TYPE=release
    TARGET_BUILD_APPS=
    TARGET_ARCH=arm
    TARGET_ARCH_VARIANT=armv7-a
    TARGET_CPU_VARIANT=generic
    TARGET_2ND_ARCH=
    TARGET_2ND_ARCH_VARIANT=
    TARGET_2ND_CPU_VARIANT=
    HOST_ARCH=x86_64
    HOST_OS=linux
    HOST_OS_EXTRA=Linux-3.5.0-23-generic-x86_64-with-Ubuntu-12.04-precise
    HOST_BUILD_TYPE=release
    BUILD_ID=LRX21M
    OUT_DIR=out
    ============================================
    
    root@ubuntu:~/work/android/android5/android-5.0# make

![复制代码][copycode.gif]

编译完成后，设置工具链路径，为编译内核方便：

export PATH=$PATH:/root/work/android/android-5.0/prebuilts/gcc/linux-x86/arm/arm-eabi-4.8/bin

编译内核：

下载内核后，解压

![复制代码][copycode.gif]

root@ubuntu:~/work/android/android5/goldfish# git branch -a
      master
      remotes/origin/HEAD -> origin/master
      remotes/origin/android-3.10
      remotes/origin/android-3.4
      remotes/origin/android-goldfish-2.6.29
      remotes/origin/android-goldfish-3.10
      remotes/origin/android-goldfish-3.4
      remotes/origin/linux-goldfish-3.0-wip
      remotes/origin/master

![复制代码][copycode.gif]

由于Android5.0的模拟器使用的内核是3.4（可以用模拟器自带的内核启动一个模拟器，然后看一下内核版本 cat /proc/version ）， 所以我们也是用3.4:

root@ubuntu:~/work/android/android5/goldfish# git checkout remotes/origin/android-goldfish-3.4 -b linux-3.4

然后修改Makefile

ARCH        ?= arm
    CROSS_COMPILE    ?= arm-eabi-

配置内核

root@ubuntu:~/work/android/android5/goldfish# make goldfish_armv7_defconfig

注意：这个默认的内核并没有配置模块加载功能，需要执行make menuconfig设置，否则无法编译和加载内核模块

编译内核

make zImage -j2

用我们编出的内核启动模拟器：

root@ubuntu:~/work/android/android5/android-5.0# emulator64-arm -kernel ../goldfish/arch/arm/boot/zImage

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[http_115.com_lb_5lbd7crtk1wz]: http://115.com/lb/5lbd7crtk1wz
[http_115.com_lb_5lbd76rru5or]: http://115.com/lb/5lbd76rru5or
[http_www.cnblogs.com_pengdonglin137_p_4197969.html]: http://www.cnblogs.com/pengdonglin137/p/4197969.html
[copycode.gif]: /images/20220806/566cd7fb159143c69d4fabc0ff7fe4ed.png