130 lines
3.3 KiB
Markdown
130 lines
3.3 KiB
Markdown
buildbrain
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==========
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This repository includes:
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- linux-brain, u-boot-brain, nkbin_maker and boot4u as submodules
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- Useful build targets in Makefile
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- r3build.toml to watch changes that occur in submodules
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Confirmed environments
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----------------------
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- Debian 10 (buster) amd64
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- Debian 11 (bullseye) amd64
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Getting Started
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---------------
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1. Install dependencies.
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```
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$ sudo apt install build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabi gcc-arm-linux-gnueabihf libssl-dev bc lzop qemu-user-static debootstrap kpartx libyaml-dev python3-pyelftools
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```
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1. Clone this repository with recursive clone enabled.
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```
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$ git clone --recursive git@github.com:brain-hackers/buildbrain.git
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```
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- If you've cloned it without `--recursive`, run following command:
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```
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$ git submodule update --init --recursive
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```
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1. Install uuu.
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- Follow [the instruction](https://github.com/NXPmicro/mfgtools#linux) and build `uuu` executable.
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- Put `uuu` where the PATH executable points to.
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Build U-Boot
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-----------------------
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1. Run `make udefconfig-sh*` to generate `.config`.
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- For Sx1: `make udefconfig-sh1`
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- For Sx6: `make udefconfig-sh6`
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- For x1: `make udefconfig-h1`
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2. Run `make ubuild` to build whole repository and generate `u-boot.sb` or `u-boot.bin`.
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- i.MX283 loads a packed U-Boot executable called `u-boot.sb`.
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Inject U-Boot into i.MX283 in recovery mode
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-----------------------
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1. Follow `Build U-Boot` procedure to make U-Boot binary.
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1. Run `make uuu`
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Build and make NK.bin
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-----------------------
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1. Follow `Build U-Boot` procedure to make U-Boot binary.
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1. Run `make nkbin-maker`.
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1. To make `nk.bin`, run `make nk.bin`.
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- nkbin_maker packs `u-boot.bin` into `nk.bin`.
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Build and deploy boot4u
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-----------------------
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1. Run `make boot4u`
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1. Create index.din and copy AppMain.bin
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- `mkdir /path/to/your/sd/1st/partition/App/boot4u`
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- `touch /path/to/your/sd/1st/partition/App/boot4u/index.din`
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- `cp boot4u/AppMain.bin /path/to/your/sd/1st/partition/App/boot4u/`
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Build Linux
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-----------
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1. Run `make ldefconfig` to generate `.config`.
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1. Run `make lbuild` to generate `zImage`.
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1. Confirm that `linux-brain/arch/arm/boot/zImage` exists.
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Bootstrap Debian 11 (bullseye)
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------------------------------
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1. Run `make ldefconfig lbuild`.
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1. Run APT cache in background (mandatory): `make aptcache`.
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1. Run `make brainux`.
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1. Run `make image/sd.img`
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1. Confirm that `image/sd.img` is built and burn it to an SD card.
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Known issues
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----------------------------------------
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If you using gcc 10 for host compiler, `make ubuild` may fail.
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To complete build, open `/u-boot-brain/scripts/dtc/dtc-lexer.lex.c` or `/u-boot-brain/scripts/dtc/dtc-parser.tab.c` then comment out `YYLTYPE yylloc;`
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Watch changes in submodules & auto-build
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----------------------------------------
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1. Run `make setup-dev` to prepare a Python venv to watch code changes. Namely;
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- Python 3 venv in `env`
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- r3build command in the env
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1. Run `r3build`. It'll detect the changes you make and builds the corresponding executable automatically.
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What's r3build?
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---------------
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[r3build](https://github.com/puhitaku/r3build) is a smart file watcher that aims to provide hot-reloading feature like Web frontend development.
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