buildbrain ========== This repository includes: - linux-brain, u-boot-brain and nkbin_maker as submodules - Useful build targets in Makefile - r3build.toml to watch changes that occur in submodules Confirmed environments ---------------------- - Debian 10 (buster) amd64 Getting Started --------------- 1. Install dependencies. ``` $ sudo apt install build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabi ``` 1. Clone this repository with recursive clone enabled. ``` $ git clone --recursive git@github.com:puhitaku/buildbrain.git ``` - If you've cloned it without `--recursive`, run following command: ``` $ git submodule update --init --recursive ``` 1. Install uuu. - Follow [the instruction](https://github.com/NXPmicro/mfgtools#linux) and build `uuu` executable. - Put `uuu` where the PATH executable points to. Build and inject U-Boot ----------------------- 1. Run `make udefconfig-sh*` to generate `.config`. - For Sx1: `make udefconfig-sh1` - For Sx6: `make udefconfig-sh6` 2. Run `make ubuild` to build whole repository and generate `u-boot.sb`. - i.MX283 loads a packed U-Boot executable called `u-boot.sb`. 3. To inject the executable into i.MX283 in recovery mode, run `make uuu`. Build and make NK.bin ----------------------- 1. Run `make udefconfig` to generate `.config`. 2. Run `make ubuild` to build whole repository and generate `u-boot.bin`. 3. To make `nk.bin`, run `make nkbin`. - nkbin_maker packs `u-boot.bin` into `nk.bin`. Build Linux ----------- 1. Run `make ldefconfig` to generate `.config`. 1. Run `make lbuild` to generate `zImage`. 1. Confirm that `linux-brain/arch/arm/boot/zImage` exists. Bootstrap Debian 10 (buster) ---------------------------- 1. Partition an SD card into two partitions. - 1st: FAT32 (vfat), about 100MB - 2st: ext4, fill the remaining area 1. Build and copy the Linux kernel. - Run `make ldefconfig lbuild`. - Copy `/linux-brain/arch/arm/boot/zImage` and `/linux-brain/arch/arm/boot/dts/imx28-evk.dtb` into the 1st partition. 1. Run APT cache in background (mandatory): `make aptcache`. 1. Run `make debian`. 1. Copy all contents in `./debian` into the 2nd partition. - `sudo cp -ar ./debian/* /path/to/your/sd/2nd/partition/` - Please make sure that all attributes are preserved with `-a` flag. Watch changes in submodules & auto-build ---------------------------------------- 1. Run `make setup-dev` to prepare a Python venv to watch code changes. Namely; - Python 3 venv in `env` - r3build command in the env 1. Run `r3build`. It'll detect the changes you make and builds the corresponding executable automatically. What's r3build? --------------- [r3build](https://github.com/puhitaku/r3build) is a smart file watcher that aims to provide hot-reloading feature like Web frontend development.