scripts: Add script to build QEMU

This commit adds a script to build QEMU outside Poky for non-Linux
hosts.

Signed-off-by: Stephanos Ioannidis <[email protected]>

Author: stephanosio

scripts/build_qemu.sh

@@ -0,0 +1,191 @@
+#/usr/bin/env bash
+
+set -e
+
+usage()
+{
+  echo "Usage: $(basename $0) host source output"
+}
+
+# Validate and parse arguments
+if [ "$1" == "" ]; then
+  usage
+  echo
+  echo "host must be specified."
+  exit 1
+elif [ "$2" == "" ]; then
+  usage
+  echo
+  echo "source must be specified."
+  exit 1
+elif [ "$3" == "" ]; then
+  usage
+  echo
+  echo "output must be specified."
+  exit 1
+fi
+
+BUILD_HOST="$1"
+BUILD_SOURCE="$2"
+BUILD_OUTPUT="$3"
+
+# Set build parameters
+QEMU_TARGETS=" \
+  aarch64-softmmu \
+  arm-softmmu \
+  i386-softmmu \
+  mips-softmmu \
+  mipsel-softmmu \
+  or1k-softmmu \
+  riscv32-softmmu \
+  riscv64-softmmu \
+  rx-softmmu \
+  sparc-softmmu \
+  x86_64-softmmu \
+  xtensa-softmmu \
+"
+
+QEMU_FLAGS=" \
+  --disable-attr \
+  --disable-cap-ng \
+  --disable-curl \
+  --disable-curses \
+  --disable-debug-info \
+  --disable-dmg
+  --disable-docs \
+  --disable-glusterfs \
+  --disable-gnutls \
+  --disable-gtk \
+  --disable-guest-agent \
+  --disable-iconv \
+  --disable-kvm \
+  --disable-libiscsi \
+  --disable-libnfs \
+  --disable-libssh \
+  --disable-libusb \
+  --disable-linux-aio \
+  --disable-nettle \
+  --disable-numa \
+  --disable-parallels \
+  --disable-replication \
+  --disable-sdl \
+  --disable-seccomp \
+  --disable-selinux \
+  --disable-tpm \
+  --disable-usb-redir \
+  --disable-virtfs \
+  --disable-xen \
+  --enable-gcrypt \
+  --enable-png \
+  --enable-vnc \
+  --enable-vnc-jpeg \
+"
+
+if [ "${BUILD_HOST}" == "windows-x86_64" ]; then
+  BUILD_PREFIX="${BUILD_OUTPUT}/qemu"
+
+  # Set MinGW-w64 cross toolchain prefix
+  QEMU_FLAGS+="--cross-prefix=x86_64-w64-mingw32-"
+
+  # Specify statically linked libraries. Only small runtime libraries are
+  # statically linked for now to reduce the overall QEMU binary size.
+  export LDFLAGS=" \
+    -l:libssp.a \
+    -l:libwinpthread.a \
+    "
+elif [[ "${BUILD_HOST}" =~ ^macos-.* ]]; then
+  BUILD_PREFIX="${BUILD_OUTPUT}/opt/qemu"
+
+  case ${BUILD_HOST} in
+    macos-aarch64)
+      HOMEBREW_PREFIX="/opt/homebrew"
+      ;;
+    macos-x86_64)
+      HOMEBREW_PREFIX="/usr/local"
+      ;;
+  esac
+
+  # Ensure that arch-specific Homebrew environment is configured
+  eval $(${HOMEBREW_PREFIX}/bin/brew shellenv)
+
+  # Specify statically linked libraries and their dependencies
+  export LDFLAGS=" \
+    ${HOMEBREW_PREFIX}/lib/libgcrypt.a \
+    ${HOMEBREW_PREFIX}/lib/libgio-2.0.a \
+    ${HOMEBREW_PREFIX}/lib/libglib-2.0.a \
+    ${HOMEBREW_PREFIX}/lib/libgmodule-2.0.a \
+    ${HOMEBREW_PREFIX}/lib/libgmp.a \
+    ${HOMEBREW_PREFIX}/lib/libgobject-2.0.a \
+    ${HOMEBREW_PREFIX}/lib/libgpg-error.a \
+    ${HOMEBREW_PREFIX}/lib/libintl.a \
+    ${HOMEBREW_PREFIX}/lib/libjpeg.a \
+    ${HOMEBREW_PREFIX}/lib/libpcre2-8.a \
+    ${HOMEBREW_PREFIX}/lib/libpixman-1.a \
+    ${HOMEBREW_PREFIX}/lib/libpng.a \
+    ${HOMEBREW_PREFIX}/lib/libzstd.a \
+    ${HOMEBREW_PREFIX}/opt/libffi/lib/libffi.a \
+    -framework AppKit \
+    -framework CoreServices \
+    -framework Foundation \
+    -liconv \
+    -lresolv \
+    -lz \
+    "
+else
+  echo "ERROR: Invalid build host '${BUILD_HOST}'"
+  exit 1
+fi
+
+# Configure QEMU
+${BUILD_SOURCE}/configure \
+  ${QEMU_FLAGS} \
+  --target-list="${QEMU_TARGETS}" \
+  --prefix="${BUILD_PREFIX}"
+
+# Build QEMU
+make -j
+
+# Install QEMU
+make install
+
+# Copy required dynamic-link libraries for Windows
+if [ "${BUILD_HOST}" == "windows-x86_64" ]; then
+  QEMU_WIN_LIBS=" \
+    /opt/mingw-w64-win32/x86_64-w64-mingw32/bin/libgcrypt-20.dll \
+    /opt/mingw-w64-win32/x86_64-w64-mingw32/bin/libgpg-error-0.dll \
+    /opt/mingw-w64-win32/x86_64-w64-mingw32/bin/libiconv-2.dll \
+    /opt/mingw-w64-win32/x86_64-w64-mingw32/bin/libintl-8.dll \
+    /opt/mingw-w64-win32/x86_64-w64-mingw32/bin/libjpeg-8.dll \
+    /opt/mingw-w64-win32/x86_64-w64-mingw32/bin/libpixman-1-0.dll \
+    "
+
+  for l in ${QEMU_WIN_LIBS}; do
+    cp -f ${l} ${BUILD_PREFIX}
+  done
+fi
+
+# Symlink QEMU executables for macOS
+if [[ "${BUILD_HOST}" =~ ^macos-.* ]]; then
+  mkdir -p ${BUILD_OUTPUT}/usr/bin
+  pushd ${BUILD_OUTPUT}/usr/bin
+
+  ln -sf ../../opt/qemu/bin/qemu-edid qemu-edid
+  ln -sf ../../opt/qemu/bin/qemu-img qemu-img
+  ln -sf ../../opt/qemu/bin/qemu-io qemu-io
+  ln -sf ../../opt/qemu/bin/qemu-nbd qemu-nbd
+  ln -sf ../../opt/qemu/bin/qemu-storage-daemon qemu-storage-daemon
+  ln -sf ../../opt/qemu/bin/qemu-system-aarch64 qemu-system-aarch64
+  ln -sf ../../opt/qemu/bin/qemu-system-arm qemu-system-arm
+  ln -sf ../../opt/qemu/bin/qemu-system-i386 qemu-system-i386
+  ln -sf ../../opt/qemu/bin/qemu-system-mips qemu-system-mips
+  ln -sf ../../opt/qemu/bin/qemu-system-mipsel qemu-system-mipsel
+  ln -sf ../../opt/qemu/bin/qemu-system-or1k qemu-system-or1k
+  ln -sf ../../opt/qemu/bin/qemu-system-riscv32 qemu-system-riscv32
+  ln -sf ../../opt/qemu/bin/qemu-system-riscv64 qemu-system-riscv64
+  ln -sf ../../opt/qemu/bin/qemu-system-rx qemu-system-rx
+  ln -sf ../../opt/qemu/bin/qemu-system-sparc qemu-system-sparc
+  ln -sf ../../opt/qemu/bin/qemu-system-x86_64 qemu-system-x86_64
+  ln -sf ../../opt/qemu/bin/qemu-system-xtensa qemu-system-xtensa
+
+  popd
+fi