mirror of
https://github.com/bryanthaboi/gen1recomp.git
synced 2026-08-27 17:01:44 +02:00
bryanthaboi
83 lines
3.7 KiB
Bash
Executable File
83 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Verifies a built arm64 AppImage is self-contained and bullseye-compatible.
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# Usage: scripts/linux-arm64/verify_appimage.sh <AppImage>
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set -euo pipefail
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image="${1:?usage: verify_appimage.sh <AppImage>}"
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[ -f "$image" ] || { echo "::error::no such AppImage: $image"; exit 1; }
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image="$(cd "$(dirname "$image")" && pwd)/$(basename "$image")"
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workdir="$(mktemp -d)"
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trap 'rm -rf "$workdir"' EXIT
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cd "$workdir"
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# --appimage-extract needs no FUSE, so this works on a runner
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# without /dev/fuse and still exercises the real payload.
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"$image" --appimage-extract >/dev/null
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for required in AppRun bin/love game.love lib/liblove-11.5.so; do
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[ -e "squashfs-root/$required" ] \
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|| { echo "::error::AppImage is missing $required"; exit 1; }
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done
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bridge="squashfs-root/liblibrashader_bridge.so"
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if [ "${SHADERFX_BRIDGE_REQUIRED:-}" = "1" ] && [ ! -e "$bridge" ]; then
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echo "::error::AppImage is missing liblibrashader_bridge.so"
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exit 1
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fi
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# Discovered, not enumerated: bin/love and lib/*.so* miss anything native at
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# the AppDir root, which is where ShaderFX's bridge sits and where the next
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# root-level library would land too.
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scan=()
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while IFS= read -r f; do
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scan+=("$f")
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done < <(find squashfs-root -type f -exec sh -c \
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'head -c4 "$1" | od -An -tx1 | tr -d " \n" | grep -q "^7f454c46$"' _ {} \; -print | sort)
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[ "${#scan[@]}" -gt 0 ] || { echo "::error::found no ELF objects in the AppDir"; exit 1; }
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echo "scanning ${#scan[@]} ELF objects: ${scan[*]#squashfs-root/}"
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# Every bundled object must resolve once AppRun's LD_LIBRARY_PATH is
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# applied; an unresolved soname here is a user-visible launch crash.
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#
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# This runs on a HEADLESS runner on purpose, and that is the point.
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# The first version of this build bundled Debian's SDL2, which
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# hard-links libpulse/libasound/libX11/libwayland, so it only ever
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# started on a full desktop -- a bare runner is what exposed it.
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missing="$(LD_LIBRARY_PATH="$PWD/squashfs-root/lib" \
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ldd "${scan[@]}" 2>/dev/null \
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| grep 'not found' || true)"
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[ -z "$missing" ] || { echo "::error::unresolved deps:"; echo "$missing"; exit 1; }
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# Nothing may hard-link a driver, session or audio-stack library:
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# those must be reached through dlopen so the AppImage runs on a box
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# with only ALSA, only Wayland, or only KMSDRM.
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linked="$(for f in "${scan[@]}"; do
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objdump -p "$f" 2>/dev/null | awk '/NEEDED/{print $2}'
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done | sort -u | grep -E '^lib(pulse|asound|X11|wayland|GL|EGL|drm|gbm|xcb|cairo|sndio|dbus)' || true)"
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[ -z "$linked" ] \
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|| { echo "::error::these must be dlopened, not linked:"; echo "$linked"; exit 1; }
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# The whole point of compiling on bullseye. If a future change moves
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# the builder to a newer base, the glibc floor silently rises and
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# every user on an older distro gets "GLIBC_2.xx not found" -- catch
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# it here instead of in a release.
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floor="$(objdump -T "${scan[@]}" 2>/dev/null \
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| grep -o 'GLIBC_[0-9.]*' | sort -V | tail -1)"
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echo "highest required glibc symbol version: $floor"
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[ -n "$floor" ] \
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|| { echo "::error::found no versioned glibc symbols -- objdump read nothing"; exit 1; }
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highest="$(printf '%s\n' "$floor" "GLIBC_2.31" | sort -V | tail -1)"
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[ "$highest" = "GLIBC_2.31" ] \
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|| { echo "::error::AppImage requires $floor, above the bullseye 2.31 floor"; exit 1; }
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# The floor grep proves symbol versions; an actual dlopen additionally proves
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# relocations and constructors. Native arch only, so it is skipped elsewhere.
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if [ -e "$bridge" ] && [ "$(uname -m)" = "aarch64" ] && command -v python3 >/dev/null 2>&1; then
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python3 -c "import ctypes,sys; ctypes.CDLL(sys.argv[1])" "$PWD/$bridge" \
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|| { echo "::error::liblibrashader_bridge.so failed to dlopen"; exit 1; }
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echo "librashader bridge dlopens cleanly"
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fi
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echo "AppImage verified: $image"
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