buildcharge

buildroot-like project that allows you to build a mainline linux kernel & initramfs compatible with depthcharge (also works on QEMU for testing)

Important

The name of this project is NOT finalized and may change at any point. To submit name requests, dm me on discord: @kxtzownsu

Building

Usage:

make <architecture> <variables>
# acceptable architectures are x86_64 and arm64/aarch64 (identical)

Important variables:

Note, bool means 0 or 1, not true or false.

• KERNEL_VERSION (int), the ChromeOS kernver to give the kernel.
• RECOVERY (bool), whether or not to sign with recovery keys.
• USE_ALL_CORES (bool), whether to use all CPU cores to compile the kernel (uses half if false).

Cleaning

• make clean-<architecture>: cleans bzimage, initramfs, and final kernel for <arch>
• make fullclean: cleans everything (will require re-downloading build env, recompiling kernel, etc..)

Configuration

• USE_DEFAULT_CONFIG (bool), whether or not to regenerate the .config from the default (default true).
• make menuconfig: generates .config with a TUI (make <arch> will create it from the defaults if it doesn't exist, so this is optional)

Licensing

The project is licensed under the GPLv2 license with the exception of the following folders:

• scripts/kconfig: All Right Reserved (c) kxtzownsu 2026