Build

CI: Improve workflow #3

	name: Build

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	permissions:
	contents: read

	jobs:
	build:
	runs-on: ubuntu-24.04
	strategy:
	matrix:
	board: [discoveryf4, discoveryf429, netduinoplus2]

	steps:
	- uses: actions/checkout@v6

	- name: Install ARM toolchain
	uses: carlosperate/arm-none-eabi-gcc-action@v1
	with:
	release: '15.2.Rel1'

	- name: Configure for ${{ matrix.board }}
	run: make ${{ matrix.board }}_defconfig

	- name: Build kernel
	run: make

	- name: Show binary size
	run: arm-none-eabi-size build/${{ matrix.board }}/f9.elf

	- name: Upload artifacts
	uses: actions/upload-artifact@v6
	with:
	name: f9-${{ matrix.board }}
	path: \|
	build/${{ matrix.board }}/f9.elf
	build/${{ matrix.board }}/f9.bin

	- name: Install QEMU
	if: matrix.board == 'netduinoplus2'
	run: sudo apt-get update && sudo apt-get install -y qemu-system-arm

	- name: QEMU boot test
	if: matrix.board == 'netduinoplus2'
	run: \|
	timeout 15s qemu-system-arm \
	-M netduinoplus2 \
	-nographic \
	-serial mon:stdio \
	-kernel build/netduinoplus2/f9.elf 2>&1 \| tee qemu.log \|\| true

	echo "=== QEMU Output ==="
	cat qemu.log
	echo "==================="

	if grep -q "Press '?' to print KDB menu" qemu.log; then
	echo "✓ KDB shell ready"; exit 0
	elif grep -q "KDB" qemu.log; then
	echo "✓ KDB initialized"; exit 0
	elif grep -q "f9\\|F9" qemu.log; then
	echo "✓ Kernel boot detected"; exit 0
	fi

	if grep -qE "MEMFAULT\|HardFault\|panic" qemu.log; then
	echo "✗ Kernel crash detected"; exit 1
	fi

	echo "✗ No boot message detected (timeout or minimal output)"
	exit 1

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