2. Ubuntu download compiled Linux kernel

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

* android-goldfish-2.6.29 4bb8fa0 [origin/android-goldfish-2.6.29] goldfish:add encrypted SD Card Support.

Master 1b8b73f [Origin/master] Empty Commit

Remotes/origin/head-Origin/master

remotes/origin/android-3.10 1d0f729 Android:base-cfg:add Config_ip_multicast

remotes/origin/android-3.18 2771f08 Android:base-cfg:add Config_ip_multicast

remotes/origin/android-3.4 4e97def Selinux:nlmsgtab:add Sock_destroy to the NetLink mapping tables

remotes/origin/android-goldfish-2.6.29 4bb8fa0 Goldfish:add encrypted SD Card support.

remotes/origin/android-goldfish-3.10 1db7499 Merge branch ' android-3.10 ' into android-goldfish-3.10

Remotes/origin/android-goldfish-3.10-l-mr1-dev 70edbbb ranchu:32 bit framebuffer support

Remotes/origin/android-goldfish-3.10-m-dev 8839123 mm/pagewalk.c:fix walk_page_range () access of wrong PTEs

Remotes/origin/android-goldfish-3.18-dev dfc5f3c arm:goldfish:Update Goldfish defconfigs

remotes/origin/android-goldfish-3.4 2011b1c Merge branch ' android-3.4 ' into android-goldfish-3.4

Remotes/origin/android-goldfish-3.4-l-mr1-dev 2d58ef9 x86:goldfish:Enable Required NetFilter features

REMOTES/ORIGIN/LINUX-GOLDFISH-3.0-WIP C423BB8 X86:add x86 support to the Golfish framebuffer driver.

Remotes/origin/master 1b8b73f Empty Commit

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/473181/1742558

2. Ubuntu download compiled Linux kernel