:: limine / contrib / test_gzip_qemu.sh 1.9 KB raw

#!/bin/bash

# Mechanically test gzip decompression end-to-end in QEMU.

# Boots the Limine test kernel via UEFI with both a plain file and

# its .gz counterpart as internal modules.  The test kernel loads

# the compressed module (decompressed by the bootloader) and compares

# it byte-for-byte against the plain copy.

# Usage:    bash contrib/test_gzip_qemu.sh

# Requires: qemu-system-x86_64, mtools, gzip

set -euo pipefail

cd "$(dirname "$0")/.."

TIMEOUT="${QEMU_TIMEOUT:-20}"

if ! command -v gzip >/dev/null 2>&1; then

  echo "where's your gzip?"

  exit 1

fi

TEST_CFLAGS="-DENABLE_QEMU_SHUTDOWN -DENABLE_GZIP_TEST"

make limine-bios limine-uefi-x86-64 2>&1 | tail -1

make edk2-ovmf 2>&1 | tail -1

make -C test -f test.mk ARCH=x86 EXTRA_CFLAGS="$TEST_CFLAGS" test.elf 2>&1 | tail -1

IMG=test_uefi.img

rm -f "$IMG"

mformat -i "$IMG" -C -F -T 131072 :: 2>/dev/null

mmd -i "$IMG" ::/boot ::/EFI ::/EFI/BOOT 2>/dev/null

mcopy -i "$IMG" bin/BOOTX64.EFI ::/EFI/BOOT/

mcopy -i "$IMG" bin/limine-bios.sys ::/boot/

mcopy -i "$IMG" test/test.elf ::/boot/

mcopy -i "$IMG" test/bg.jpg ::/boot/

mcopy -i "$IMG" test/limine.conf ::/boot/

GZ_TMP=$(mktemp)

gzip -c test/limine.conf > "$GZ_TMP"

mcopy -i "$IMG" "$GZ_TMP" ::/boot/limine.conf.gz

rm -f "$GZ_TMP"

QEMU_LOG=$(mktemp)

trap 'rm -f "$QEMU_LOG" "$IMG"' EXIT

timeout "$TIMEOUT" \

  qemu-system-x86_64 \

    -display none \

    -m 512M -M q35 \

    -drive if=pflash,unit=0,format=raw,file=edk2-ovmf/ovmf-code-x86_64.fd,readonly=on \

    -net none -smp 4 \

    -drive format=raw,file="$IMG" \

    -debugcon file:"$QEMU_LOG" \

  || true  # timeout exits 124

if grep -q 'gzip: pass' "$QEMU_LOG"; then

  grep 'gzip:' "$QEMU_LOG"

  echo "pass: gzip decompression verified in QEMU"

  exit 0

elif grep -q 'gzip: FAIL' "$QEMU_LOG"; then

  grep 'gzip:' "$QEMU_LOG"

  echo "fail"

  exit 1

else

  echo "fail: gzip test marker not found in QEMU output"

  echo "last 20 lines of log:"

  tail -20 "$QEMU_LOG"

  exit 1

fi