A fast way to flash incrementally compiled kernels
General question: So that I can work on this with most ease, can you tell what is the easiest way to recompile and flash on nexus 5 a modified version of the kernel (with just few modifications in some source files)?
Such a thing does not exist I think this is something that could done by pmbootstrap. The workflow is outlined below.
Set up envkernel
$ source pmbootstrap/helpers/envkernel.sh $ make <defconfig>
$ make # Flash the kernel # Modify source code # Incremental compile $ make # Flash the updated kernel # Modify source code again # Incremental compile $ make # Flash the updated kernel # etc...
The step we are missing is a way to flash incrementally compiled kernels. What could be implemented in pmbootstrap:
Installing an updated kernel
- Leverage mkinitfs to package boot image with kernel compiled in envkernel(?)
- Possible methods to flash an updated kernel:
a. Use flasher to install incrementally compiled kernel.
$ pmbootstrap flasher flash_kernel
b. Push boot image to device. Write boot partition with
dd if=boot.img of=/dev/mmcblkXpY
Dangerous: Easy to mistakenly write the wrong partition
c. Package AnyKernel updater with the zImage from envkernel. Then adb sideload the package.
d. Build kernel apk package from envkernel ???