高通kernel代码
$ git clone https://android.googlesource.com/kernel/msm.git hammerhead-kernel
$ git checkout android-msm-hammerhead-3.4-kitkat-mr1
2. Build Kernel
$ cd $(AOSP_PATH)
$ . build/envsetup.sh
$ lunch 12
$ export ARCH=arm
$ export SUBARCH=arm
$ export CROSS_COMPILE=arm-eabi-
$ cd hammerhead-kernel
$ make hammerhead_defconfig
$ make
3. Verify Kernel
remotes/origin/msm-3.7
cp $(KERNEL)arch/arm/boot/zImag-dtb (ANDROID_ROOT)out/target/product/hammerhead/kernel