Michael Smith
a5b04fcd08
Move device-specific content (hardware, software, libraries) from TOOLCHAIN.md into new docs/rg35xx-plus.md. Add partition layout, full boot chain trace (systemd → launcher.sh → loadapp.sh → dmenu_ln), and sdlamp2 deployment instructions via dmenu_ln config toggle. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
1.4 KiB
Build Container
arm64 Docker build container for producing device binaries. For target device details see rg35xx-plus.md.
The docker-arm64/ directory contains a Docker setup that runs an arm64 Ubuntu 22.04 container via QEMU user-mode emulation. This matches the target device exactly — same distro, same glibc 2.35, same library versions. The project's native make (using pkg-config) works as-is inside the container, no cross-compilation flags needed.
Prerequisites
QEMU binfmt handlers must be registered on the host (one-time setup, persists across reboots):
docker run --privileged --rm tonistiigi/binfmt --install arm64
Usage
From the docker-arm64/ directory:
make build # one-shot: build sdlamp2 inside the container
make shell # interactive bash shell for development
make clean # remove the Docker image
The container mounts the project root at /workspace. Output binary is build/sdlamp2 (ELF 64-bit ARM aarch64).
Image Contents
- Base:
ubuntu:22.04(arm64) - Build tools:
build-essential,pkg-config - SDL2:
libsdl2-dev,libsdl2-image-dev - FFmpeg:
libavformat-dev,libavcodec-dev,libavutil-dev,libswresample-dev
The image is tagged arm64-dev and is generic enough to reuse for other projects targeting the same device.