OpenWRT Cross-Compilation Project

Cross-compilation environment for GL.iNet routers: Flint1 (GL-AX1800) and Flint2 (GL-MT6000).

Project Structure

Router-Specific Directories

OpenWRT/
├── flint1-armv7/          # GL-AX1800 (ARMv7, 32-bit)
│   ├── sdk/               # ARMv7 cross-compilation toolchains
│   ├── src/               # Source code for compilation
│   └── build/             # Build scripts
│
├── flint2-aarch64/        # GL-MT6000 (ARMv8/aarch64, 64-bit)
│   ├── sdk/               # MediaTek OpenWrt SDKs
│   ├── src/               # Source code (symlinked)
│   └── build/             # Build scripts
│
├── binaries/              # Compiled binaries
│   ├── flint1/            # ARMv7 binaries
│   └── flint2/            # aarch64 binaries
│
├── packages/              # .ipk packages
│   ├── flint1/
│   ├── flint2/
│   └── common/
│
├── src/                   # Shared source code
│   ├── btop/
│   └── mosh/
│
└── agent-notes/           # Research and documentation

Shared Directories

binaries/ - Compiled binaries sorted by architecture
packages/ - OpenWrt .ipk packages
src/ - Original source code (shared reference)
opkg-repo/ - Package repository for deployment
agent-notes/ - Research, build results, SDK documentation

Architecture Overview

Router	Model	SoC	Architecture	Bits	OpenWrt Target
Flint1	GL-AX1800	Qualcomm IPQ6000	ARMv7 rev 4	32-bit	ipq40xx
Flint2	GL-MT6000	MediaTek MT7986A	ARMv8 rev 4 (aarch64)	64-bit	mediatek-filogic

Note: Different architectures require separate binaries.

Quick Start

Flint1 (ARMv7)

cd flint1-armv7/build
./download-armv7-toolchain.sh  # First time only
./build-btop-armv7.sh

Flint2 (aarch64)

Binaries already built and available in binaries/flint2/.

To rebuild:

cd flint2-aarch64/sdk/openwrt-sdk-mediatek-filogic_gcc-14.3.0_musl.Linux-x86_64/
./scripts/feeds update -a
make package/<name>/compile

Documentation

Flint1 SDK Research: agent-notes/flint1-sdk-research.md
Flint1 Build Results: agent-notes/glax1800-build-results.md
Implementation Plan: .gemini/antigravity/brain/.../implementation_plan.md

Build Scripts

build-ipk.sh - Create .ipk packages
build-verified-ipk.sh - Build with verification
generate-index.sh - Generate opkg repository index
upload-repo.sh - Upload to repository server

Active Toolchains

Flint1: musl.cc armv7l-linux-musleabihf (GCC 11.2.1)
Flint2: OpenWrt mediatek-filogic SDK (GCC 14.3.0)

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