xemu/build.sh

#!/usr/bin/env bash

set -e # exit if a command fails
set -o pipefail # Will return the exit status of make if it fails
set -o physical # Resolve symlinks when changing directory

project_source_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"

target_arch=$(uname -m)

package_windows() {
    rm -rf dist
    mkdir -p dist
    cp build/qemu-system-i386w.exe dist/xemu.exe
    # cp -r "${project_source_dir}/data" dist/
    python3 "${project_source_dir}/get_deps.py" dist/xemu.exe dist
    if [ "$debug" != "y" ]; then
        strip dist/xemu.exe
    fi
}

package_wincross() {
    STRIP=${CROSSPREFIX}strip
    rm -rf dist
    mkdir -p dist
    cp build/qemu-system-i386w.exe dist/xemu.exe
    # cp -r "${project_source_dir}/data" dist/
    if [ "$debug" != "y" ]; then
        $STRIP dist/xemu.exe
    fi
    python3 ./scripts/gen-license.py --platform windows > dist/LICENSE.txt
}

package_macos() {
    rm -rf dist

    # Copy in executable
    mkdir -p dist/xemu.app/Contents/MacOS/
    exe_path=dist/xemu.app/Contents/MacOS/xemu
    lib_path=dist/xemu.app/Contents/Libraries/${target_arch}
    lib_rpath=../Libraries/${target_arch}
    cp build/qemu-system-i386 ${exe_path}

    # Copy in in executable dylib dependencies
    dylibbundler -cd -of -b -x dist/xemu.app/Contents/MacOS/xemu \
        -d ${lib_path}/ \
        -p "@executable_path/${lib_rpath}/" \
        -s ${PWD}/macos-libs/${target_arch}/opt/local/libexec/openssl11/lib/ \
        -s ${PWD}/macos-libs/${target_arch}/opt/local/lib/

    # Fixup some paths dylibbundler missed
    for dep in $(otool -L "$exe_path" | grep -e '/opt/local/' | cut -d' ' -f1); do
      dep_basename="$(basename $dep)"
      new_path="@executable_path/${lib_rpath}/${dep_basename}"
      echo "Fixing $exe_path dependency $dep_basename -> $new_path"
      install_name_tool -change "$dep" "$new_path" "$exe_path"
    done
    for lib_path in ${lib_path}/*.dylib; do
      for dep in $(otool -L "$lib_path" | grep -e '/opt/local/' | cut -d' ' -f1); do
        dep_basename="$(basename $dep)"
        new_path="@rpath/${dep_basename}"
        echo "Fixing $lib_path dependency $dep_basename -> $new_path"
        install_name_tool -change "$dep" "$new_path" "$lib_path"
      done
    done

    # Copy in runtime resources
    mkdir -p dist/xemu.app/Contents/Resources
    # cp -r "${project_source_dir}/data" dist/xemu.app/Contents/Resources

    # Generate icon file
    mkdir -p xemu.iconset
    for r in 16 32 128 256 512; do cp "${project_source_dir}/ui/icons/xemu_${r}x${r}.png" "xemu.iconset/icon_${r}x${r}.png"; done
    iconutil --convert icns --output dist/xemu.app/Contents/Resources/xemu.icns xemu.iconset

    cp Info.plist dist/xemu.app/Contents/
    python3 ./scripts/gen-license.py --version-file=macos-libs/$target_arch/INSTALLED > dist/LICENSE.txt
}

package_linux() {
    rm -rf dist
    mkdir -p dist
    cp build/qemu-system-i386 dist/xemu
    # cp -r "${project_source_dir}/data" dist
    if test -e "${project_source_dir}/XEMU_LICENSE"; then
      cp "${project_source_dir}/XEMU_LICENSE" dist/LICENSE.txt
    else
      python3 ./scripts/gen-license.py > dist/LICENSE.txt
    fi
}

postbuild=''
debug_opts=''
build_cflags='-O3'
default_job_count='12'
sys_ldflags=''

get_job_count () {
	if command -v 'nproc' >/dev/null
	then
		nproc
	else
		case "$(uname -s)" in
			'Linux')
				egrep "^processor" /proc/cpuinfo | wc -l
				;;
			'FreeBSD')
				sysctl -n hw.ncpu
				;;
			'Darwin')
				sysctl -n hw.logicalcpu 2>/dev/null \
				|| sysctl -n hw.ncpu
				;;
			'MSYS_NT-'*|'CYGWIN_NT-'*|'MINGW'*'_NT-'*)
				if command -v 'wmic' >/dev/null
				then
					wmic cpu get NumberOfLogicalProcessors/Format:List \
						| grep -m1 '=' | cut -f2 -d'='
				else
					echo "${NUMBER_OF_PROCESSORS:-${default_job_count}}"
				fi
				;;
			*)
				echo "${default_job_count}"
				;;
		esac
	fi
}

job_count="$(get_job_count)" 2>/dev/null
job_count="${job_count:-${default_job_count}}"
debug=""
opts=""
platform="$(uname -s)"

while [ ! -z "${1}" ]
do
    case "${1}" in
    '-j'*)
        job_count="${1:2}"
        shift
        ;;
    '--debug')
        debug="y"
        shift
        ;;
    '-p'*)
        platform="${2}"
        shift 2
        ;;
    '-a'*)
        target_arch="${2}"
        shift 2
        ;;
    *)
        break
        ;;
    esac
done

target="qemu-system-i386"
if test ! -z "$debug"; then
    build_cflags='-O0 -g -DXEMU_DEBUG_BUILD=1'
    opts="--enable-debug"
else
    opts="--enable-lto"
fi


case "$platform" in # Adjust compilation options based on platform
    Linux)
        echo 'Compiling for Linux...'
        sys_cflags='-Wno-error=redundant-decls'
        opts="$opts --disable-werror"
        postbuild='package_linux'
        ;;
    Darwin)
        echo "Compiling for MacOS for $target_arch..."
        sdk_base=/Library/Developer/CommandLineTools/SDKs/
        sdk_macos_10_14="${sdk_base}/MacOSX10.14.sdk"
        sdk_macos_10_15="${sdk_base}/MacOSX10.15.sdk"
        sdk_macos_11_1="${sdk_base}/MacOSX11.1.sdk"
        sdk_macos_11_3="${sdk_base}/MacOSX11.3.sdk"
        sdk_macos_12_0="${sdk_base}/MacOSX12.0.sdk"
        if [ "$target_arch" == "arm64" ]; then
            macos_min_ver=11.1
            if test -d "$sdk_macos_12_0"; then
                sdk="$sdk_macos_12_0"
            elif test -d "$sdk_macos_11_3"; then
                sdk="$sdk_macos_11_3"
            elif test -d "$sdk_macos_11_1"; then
                sdk="$sdk_macos_11_1"
            else
                echo "SDK not found. Install Xcode Command Line Tools"
                exit 1
            fi
        elif [ "$target_arch" == "x86_64" ]; then
            macos_min_ver=10.13
            if test -d "$sdk_macos_12_0"; then
                sdk="$sdk_macos_12_0"
            elif test -d "$sdk_macos_11_3"; then
                sdk="$sdk_macos_11_3"
            elif test -d "$sdk_macos_11_1"; then
                sdk="$sdk_macos_11_1"
            elif test -d "$sdk_macos_10_15"; then
                sdk="$sdk_macos_10_15"
            elif test -d "$sdk_macos_10_14"; then
                sdk="$sdk_macos_10_14"
            else
                echo "SDK not found. Install Xcode Command Line Tools"
                exit 1
            fi
        else
            echo "Unsupported arch $target_arch"
            exit 1
        fi
        python3 ./scripts/download-macos-libs.py ${target_arch}
        lib_prefix=${PWD}/macos-libs/${target_arch}/opt/local
        export CFLAGS="-arch ${target_arch} \
                       -target ${target_arch}-apple-macos${macos_min_ver} \
                       -isysroot ${sdk} \
                       -I${lib_prefix}/include \
                       -mmacosx-version-min=$macos_min_ver"
        export LDFLAGS="-arch ${target_arch} \
                        -isysroot ${sdk}"
        if [ "$target_arch" == "x86_64" ]; then
            sys_cflags='-march=ivybridge'
        fi
        sys_ldflags='-headerpad_max_install_names'
        export PKG_CONFIG_PATH="${lib_prefix}/lib/pkgconfig"
        export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:${lib_prefix}/libexec/openssl11/lib/pkgconfig"
        opts="$opts --disable-cocoa --cross-prefix="
        postbuild='package_macos'
        ;;
    CYGWIN*|MINGW*|MSYS*)
        echo 'Compiling for Windows...'
        sys_cflags='-Wno-error'
        opts="$opts --disable-fortify-source"
        postbuild='package_windows' # set the above function to be called after build
        target="qemu-system-i386w.exe"
        ;;
    win64-cross)
        echo 'Cross-compiling for Windows...'
        export AR=${AR:-$CROSSAR}
        sys_cflags='-Wno-error'
        opts="$opts --cross-prefix=$CROSSPREFIX --static --disable-fortify-source"
        postbuild='package_wincross' # set the above function to be called after build
        target="qemu-system-i386w.exe"
        ;;
    *)
        echo "Unsupported platform $platform, aborting" >&2
        exit -1
        ;;
esac

# find absolute path (and resolve symlinks) to build out of tree
configure="${project_source_dir}/configure"
build_cflags="${build_cflags} -I${project_source_dir}/ui/imgui"

set -x # Print commands from now on

"${configure}" \
    --extra-cflags="-DXBOX=1 ${build_cflags} ${sys_cflags} ${CFLAGS}" \
    --extra-ldflags="${sys_ldflags}" \
    --target-list=i386-softmmu \
    ${opts} \
    "$@"

# Force imgui update now to work around annoying make issue
if ! test -f "${project_source_dir}/ui/imgui/imgui.cpp"; then
    ./scripts/git-submodule.sh update ui/imgui
fi

time make -j"${job_count}" ${target} 2>&1 | tee build.log

"${postbuild}" # call post build functions