I. INTRODUCTION
As Loro says, there is no Linux kernel code in the Android source code. It uses pre-compiled kernel, which you can see using the ADB shell cat Proc/version, as follows:
[Email protected]:~/working_directory$ adb shell Cat proc/version
Linux version 2.6.29-00261-g0097074-dirty ([email protected]) (GCC version 4.4.0 (gcc)) #20 Wed Mar 09:54:02 PDT 2010
[Email protected]:~/working_directory$
From the kernel version you can see the current use or Google in the 2010 compiled kernel, how to download/compile/run their own kernel it?
Two. Download kernel
Please refer to Lao Luo's blog for download methods.
http://blog.csdn.net/luoshengyang/article/details/6564592
But there is a place to note, similar to the 1th post, because the address is the wall, can not download the success (at least I did not succeed ...)
So we have to go to the mirror station of Tsinghua University to download
Https://aosp.tuna.tsinghua.edu.cn/kernel/goldfish.git
1. Create a new kernel directory
mkdir kernel
CD kernel
2. Git clone https://aosp.tuna.tsinghua.edu.cn/kernel/goldfish.git
Enter the Goldfish directory when clone is complete
3. CD Goldfish
4. Git branch-a View Remote branch
[Email protected]:~/working_directory/kernel/goldfish$ git branch-a
* Master
Remotes/origin/head-Origin/master
remotes/origin/android-3.10
remotes/origin/android-3.18
remotes/origin/android-3.4
remotes/origin/android-goldfish-2.6.29
remotes/origin/android-goldfish-3.10
Remotes/origin/android-goldfish-3.10-l-mr1-dev
Remotes/origin/android-goldfish-3.10-m-dev
Remotes/origin/android-goldfish-3.18-dev
remotes/origin/android-goldfish-3.4
Remotes/origin/android-goldfish-3.4-l-mr1-dev
Remotes/origin/linux-goldfish-3.0-wip
Remotes/origin/master
[Email protected]:~/kerle_test/goldfish$
5. Switch to the Android-goldfish-2.6.29 branch, as this branch and the 2.3 version are the closest.
git checkout-b android-goldfish-2.6.29 origin/android-goldfish-2.6.29
6. View local branch and remote branch correspondence
Git branch-avv
650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M00/7A/F5/wKioL1bDCZKB-4_8AAKnwI16F7U558.png "title=" View git remote repository 2.png "alt=" Wkiol1bdczkb-4_8aaknwi16f7u558.png "/>
You can see our local android-goldfish-2.6.29 Branch and Remote branch "4bb8fa0 [origin/android-goldfish-2.6.29] goldfish:add encrypted SD Card Support. " is the corresponding.
At this point, the kernel code is finished downloading.
In addition, I found that the default download kernel folder is goldfish, do not know why Lao Luo is common, perhaps his git command to specify a folder bar.
Three. Compiling kernel
If you compile kernel, please refer to Lao Luo's method, configure the cross-compilation environment, compile with make command
http://blog.csdn.net/luoshengyang/article/details/6564592
Ps:
Make Menuconfig is the boot configuration menu, and you can configure compilation options.
Four. Run your own kernel
Emulator-kernel./kernel/common/arch/arm/boot/zimage
Lao Luo's order is emulator-kernel./kernel/common/arch/arm/boot/zimage &
But it's not possible to find this & to work.
This article is from the "www.bogo.com" blog, make sure to keep this source http://483181.blog.51cto.com/473181/1742559
2. Ubuntu download compiled Linux kernel