75 lines
2.7 KiB
Bash
75 lines
2.7 KiB
Bash
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#!/bin/sh
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# Cross-compile Bananarchy standalone X11 games (Snake, Tetris) for armv7.
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set -eu
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BASE_DIR="$(cd "$(dirname "$0")/.." && pwd)"
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ROOTFS_DIR="${ROOTFS_DIR:-$BASE_DIR/rootfs}"
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if [ -e "$ROOTFS_DIR" ]; then
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ROOTFS_DIR="$(realpath "$ROOTFS_DIR")"
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fi
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exec docker run --rm --network=host \
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-e HOST_UID="$(id -u)" \
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-e HOST_GID="$(id -g)" \
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-v "$BASE_DIR:/bananarchy" \
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-v "$ROOTFS_DIR:/target-rootfs" \
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alpine:3.24 sh -eu -c '
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cat > /etc/apk/repositories <<EOF
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https://mirror.nura.eco/postmarketos/v26.06
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https://dl-cdn.alpinelinux.org/alpine/edge/main
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https://dl-cdn.alpinelinux.org/alpine/edge/community
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https://dl-cdn.alpinelinux.org/alpine/edge/testing
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EOF
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cp /bananarchy/keys/* /etc/apk/keys/
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echo "[1/4] Installing host cross-compilation toolchain..."
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apk add --no-cache \
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build-base \
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gcc-armv7 \
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g++-armv7 \
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binutils-armv7 \
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pkgconf >/dev/null
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echo "[2/4] Preparing armv7 sysroot (X11)..."
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SYSROOT="/tmp/armv7-sysroot"
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mkdir -p "$SYSROOT/etc/apk/keys"
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cp /etc/apk/repositories "$SYSROOT/etc/apk/repositories"
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cp /etc/apk/keys/* "$SYSROOT/etc/apk/keys/"
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apk --root "$SYSROOT" --initdb --arch armv7 add --no-scripts \
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alpine-baselayout \
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musl-dev \
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linux-headers \
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libx11-dev >/dev/null
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export PKG_CONFIG_SYSROOT_DIR="$SYSROOT"
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export PKG_CONFIG_LIBDIR="$SYSROOT/usr/lib/pkgconfig:$SYSROOT/usr/share/pkgconfig"
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CC="armv7-alpine-linux-musleabihf-gcc --sysroot=$SYSROOT"
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CXX="armv7-alpine-linux-musleabihf-g++ --sysroot=$SYSROOT"
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STRIP="armv7-alpine-linux-musleabihf-strip"
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OPT_CFLAGS="-O2 -march=armv7-a -mtune=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard -fno-plt -fomit-frame-pointer"
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mkdir -p /bananarchy/prebuilt/games/usr/bin
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echo "[3/4] Compiling Snake and Tetris..."
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$CXX $OPT_CFLAGS -std=c++17 -Wall -Wextra \
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/bananarchy/src/games/snake.cpp $(pkgconf --libs x11) \
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-o /bananarchy/prebuilt/games/usr/bin/snake
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$CXX $OPT_CFLAGS -std=c++17 -Wall -Wextra \
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/bananarchy/src/games/tetris.cpp $(pkgconf --libs x11) \
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-o /bananarchy/prebuilt/games/usr/bin/tetris
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$STRIP --strip-unneeded /bananarchy/prebuilt/games/usr/bin/snake /bananarchy/prebuilt/games/usr/bin/tetris
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echo "[4/4] Installing into overlay and (optional) target rootfs..."
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mkdir -p /bananarchy/overlay/rootfs/usr/bin
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cp -a /bananarchy/prebuilt/games/usr/bin/. /bananarchy/overlay/rootfs/usr/bin/
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if [ -d /target-rootfs/usr/bin ]; then
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cp -a /bananarchy/prebuilt/games/usr/bin/. /target-rootfs/usr/bin/
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fi
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chown -R "$HOST_UID:$HOST_GID" \
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/bananarchy/prebuilt/games \
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/bananarchy/overlay/rootfs/usr/bin \
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/bananarchy/src/games
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ls -lh /bananarchy/prebuilt/games/usr/bin/snake /bananarchy/prebuilt/games/usr/bin/tetris
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'
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