mirror of
https://github.com/Plexi09/Nadir-Kernel.git
synced 2026-10-20 15:07:27 +02:00
44 lines
1.3 KiB
YAML
44 lines
1.3 KiB
YAML
# Nadir Kernel CI. Runs on every pull request and every push to main.
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#
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# Builds os.img with make, verifies the image, then boots it headless in
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# QEMU and asserts the kernel's welcome message reaches the screen.
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name: CI
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on:
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push:
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branches: [main]
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pull_request:
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permissions:
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contents: read
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jobs:
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build-and-boot:
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name: Build and boot in QEMU
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runs-on: ubuntu-latest
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steps:
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- name: Check out repository
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uses: actions/checkout@v4
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- name: Install toolchain
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# gcc, make and binutils ship with the runner; nasm and qemu do not.
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run: sudo apt-get update && sudo apt-get install -y nasm qemu-system-x86
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- name: Build image
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run: make
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- name: Verify image
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run: |
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set -euo pipefail
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test -f os.img
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size=$(stat -c %s os.img)
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test "$size" -ge 1024
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test $(( (size - 512) % 512 )) -eq 0
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sig=$(dd if=os.img bs=1 skip=510 count=2 2>/dev/null | od -A n -t x1 | tr -d ' \n')
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test "$sig" = "55aa" || { echo "missing 0xAA55 boot signature"; exit 1; }
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grep -q "Nadir" os.img || { echo "kernel payload missing from os.img"; exit 1; }
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echo "os.img: $size bytes, boot signature and payload present"
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- name: Boot and check welcome message in QEMU
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run: python3 .github/scripts/check_boot.py os.img
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