Android Linux kernel Compilation

Android Linux kernel Compilation

Platform:

Wind7_64 + Ubuntu12_04_64 + VMware

 

Here we use Android5.0 as an example:

 

Android5.0 can be downloaded here:
115 online storage package code: 5lbd7crtk1wz
Http://115.com/lb/5lbd7crtk1wz

 

Linux_source_goldfish can be downloaded here:
115 online storage package code: 5lbd76rru5or
Http://115.com/lb/5lbd76rru5or

 

For Android5.0 compilation, refer:

Problems encountered

 

Openjdk7 is required

apt-get install openjdk-7-jdkapt-get install openjdk-7-jre

Compile:

 

root@ubuntu:~/work/android/android5/android-5.0# . build/envsetup.sh including device/moto/shamu/vendorsetup.shincluding device/samsung/manta/vendorsetup.shincluding device/generic/mini-emulator-x86/vendorsetup.shincluding device/generic/mini-emulator-arm64/vendorsetup.shincluding device/generic/mini-emulator-mips/vendorsetup.shincluding device/generic/mini-emulator-x86_64/vendorsetup.shincluding device/generic/mini-emulator-armv7-a-neon/vendorsetup.shincluding device/lge/mako/vendorsetup.shincluding device/lge/hammerhead/vendorsetup.shincluding device/asus/tilapia/vendorsetup.shincluding device/asus/deb/vendorsetup.shincluding device/asus/grouper/vendorsetup.shincluding device/asus/flo/vendorsetup.shincluding device/asus/fugu/vendorsetup.shincluding sdk/bash_completion/adb.bashroot@ubuntu:~/work/android/android5/android-5.0# choosecombo Build type choices are:     1. release     2. debugWhich would you like? [1] 1Which product would you like? [full] Variant choices are:     1. user     2. userdebug     3. engWhich would you like? [eng] ============================================PLATFORM_VERSION_CODENAME=RELPLATFORM_VERSION=5.0TARGET_PRODUCT=fullTARGET_BUILD_VARIANT=engTARGET_BUILD_TYPE=releaseTARGET_BUILD_APPS=TARGET_ARCH=armTARGET_ARCH_VARIANT=armv7-aTARGET_CPU_VARIANT=genericTARGET_2ND_ARCH=TARGET_2ND_ARCH_VARIANT=TARGET_2ND_CPU_VARIANT=HOST_ARCH=x86_64HOST_OS=linuxHOST_OS_EXTRA=Linux-3.5.0-23-generic-x86_64-with-Ubuntu-12.04-preciseHOST_BUILD_TYPE=releaseBUILD_ID=LRX21MOUT_DIR=out============================================root@ubuntu:~/work/android/android5/android-5.0# make 

After compilation, set the toolchain path to facilitate kernel Compilation:

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

Compile the kernel:

Download the kernel and decompress it.

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

Because the android 3.4 simulator uses the kernel 3.4 (you can start a simulator with the kernel that comes with the simulator, and then check the kernel version cat/proc/version), we also use:

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

Then modify the Makefile

ARCH        ?= armCROSS_COMPILE    ?= arm-eabi-

Configure the kernel

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

Note: The default kernel does not have the module loading function. You need to execute make menuconfig settings. Otherwise, the kernel module cannot be compiled or loaded.

Compile the kernel

make zImage -j2

Start the simulator with the compiled kernel:

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