Build virglrenderer and DirectFB2

Author: shengwen-tw

configs/riscv-cross-file

@@ -0,0 +1,18 @@
+[binaries]
+    c = 'riscv32-buildroot-linux-gnu-gcc'
+    strip = 'riscv32-buildroot-linux-gnu-strip'
+    pkgconfig = 'pkg-config'
+    python = '/usr/bin/python3'
+
+[properties]
+    pkg_config_libdir = ['@GLOBAL_SOURCE_ROOT@' / '../buildroot/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/local/lib/pkgconfig',
+                         '@GLOBAL_SOURCE_ROOT@' / '../buildroot/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/share/pkgconfig/',
+                         '@GLOBAL_SOURCE_ROOT@' / '../buildroot/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/lib/pkgconfig/'
+                        ]
+    sys_root = '@GLOBAL_SOURCE_ROOT@' / '../buildroot/output/host/riscv32-buildroot-linux-gnu/sysroot'
+
+[host_machine]
+    system = 'linux'
+    cpu_family = 'riscv'
+    cpu = 'riscv32-ima'
+    endian = 'little'

scripts/build-image.sh

@@ -53,6 +53,24 @@ function do_buildroot
     ASSERT make $PARALLEL
     popd
 
+    if [[ $BUILD_PACKAGES -eq 1 ]]; then
+        export PATH="$PWD/buildroot/output/host/bin:$PATH"
+        export CROSS_COMPILE=riscv32-buildroot-linux-gnu-
+
+        rm -rf extras
+        mkdir -p extras
+        do_libepoxy && OK
+        do_virglrenderer && OK
+        do_directfb && OK
+
+        cp -r libepoxy_out/* extras
+        cp -r virglrenderer_out/* extras
+        cp -r directfb/* extras
+
+        mkdir -p extras/root
+        cp target/run.sh extras/root/
+    fi
+
     if [[ $EXTERNAL_ROOT -eq 1 ]]; then
         echo "Copying rootfs.cpio to rootfs_full.cpio (external root mode)"
         cp -f buildroot/output/images/rootfs.cpio ./rootfs_full.cpio
@@ -77,21 +95,24 @@ function do_linux
     export PATH="$PWD/buildroot/output/host/bin:$PATH"
     export CROSS_COMPILE=riscv32-buildroot-linux-gnu-
     export ARCH=riscv
+    export INSTALL_MOD_PATH="out"
     pushd linux
     ASSERT make olddefconfig
     ASSERT make $PARALLEL
+    ASSERT make modules_install
     cp -f arch/riscv/boot/Image ../Image
     popd
 }
 
 function show_help {
     cat << EOF
-Usage: $0 [--buildroot] [--linux] [--all] [--external-root] [--clean-build] [--help]
+Usage: $0 [--buildroot] [--linux] [--packages] [--all] [--external-root] [--clean-build] [--help]
 
 Options:
   --buildroot         Build Buildroot rootfs
   --linux             Build Linux kernel
-  --all               Build both Buildroot and Linux
+  --packages          Build extra packages
+  --all               Build both Buildroot, Linux kernel, and extra packages
   --external-root     Use external rootfs instead of initramfs
   --clean-build       Remove entire buildroot/ and/or linux/ directories before build
   --help              Show this message
@@ -101,6 +122,7 @@ EOF
 
 BUILD_BUILDROOT=0
 BUILD_LINUX=0
+BUILD_PACKAGES=0
 EXTERNAL_ROOT=0
 CLEAN_BUILD=0
 
@@ -112,9 +134,13 @@ while [[ $# -gt 0 ]]; do
         --linux)
             BUILD_LINUX=1
             ;;
+        --packages)
+            BUILD_PACKAGES=1
+            ;;
         --all)
             BUILD_BUILDROOT=1
             BUILD_LINUX=1
+            BUILD_PACKAGES=1
             ;;
         --external-root)
             EXTERNAL_ROOT=1
@@ -133,7 +159,56 @@ while [[ $# -gt 0 ]]; do
     shift
 done
 
-if [[ $BUILD_BUILDROOT -eq 0 && $BUILD_LINUX -eq 0 ]]; then
+function do_libepoxy
+{
+    ASSERT git clone https://github.com/anholt/libepoxy.git
+    pushd libepoxy
+    cp ../configs/riscv-cross-file .
+    ASSERT meson --cross-file riscv-cross-file build/riscv
+    ASSERT meson compile -C build/riscv
+    DESTDIR=../../../libepoxy_out meson install -C build/riscv
+    DESTDIR=../../../buildroot/output/host/riscv32-buildroot-linux-gnu/sysroot meson install -C build/riscv
+    popd
+}
+
+function do_virglrenderer
+{
+    ASSERT git clone https://gitlab.freedesktop.org/virgl/virglrenderer.git
+    pushd virglrenderer
+    cp ../configs/riscv-cross-file .
+    ASSERT meson --cross-file riscv-cross-file build/riscv
+    ASSERT meson compile -C build/riscv
+    DESTDIR=../../../virglrenderer_out meson install -C build/riscv
+    popd
+}
+
+function do_directfb
+{
+    export PATH=$PATH:$PWD/buildroot/output/host/bin
+    export BUILDROOT_OUT=$PWD/buildroot/output/
+    mkdir -p directfb
+
+    # Build DirectFB2
+    ASSERT git clone https://github.com/directfb2/DirectFB2.git
+    pushd DirectFB2
+    cp ../configs/riscv-cross-file .
+    ASSERT meson -Ddrmkms=true --cross-file riscv-cross-file build/riscv
+    ASSERT meson compile -C build/riscv
+    DESTDIR=$BUILDROOT_OUT/host/riscv32-buildroot-linux-gnu/sysroot meson install -C build/riscv
+    DESTDIR=../../../directfb meson install -C build/riscv
+    popd
+
+    # Build DirectFB2 examples
+    ASSERT git clone https://github.com/directfb2/DirectFB-examples.git
+    pushd DirectFB-examples/
+    cp ../configs/riscv-cross-file .
+    ASSERT meson --cross-file riscv-cross-file build/riscv
+    ASSERT meson compile -C build/riscv
+    DESTDIR=../../../directfb meson install -C build/riscv
+    popd
+}
+
+if [[ $BUILD_BUILDROOT -eq 0 && $BUILD_LINUX -eq 0 && $BUILD_PACKAGES -eq 0 ]]; then
     echo "Error: No build target specified. Use --buildroot, --linux, or --all."
     show_help
 fi

scripts/rootfs_ext4.sh

@@ -11,6 +11,8 @@ echo "[*] Remove old rootfs directory..."
 rm -rf $DIR
 mkdir -p $DIR
 
+cp -r extras/* $DIR 
+
 echo "[*] Extract CPIO"
 pushd $DIR
 cpio -idmv < ../$ROOTFS_CPIO 

scripts/virt-disk-img.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/bash
+
+IMG=ext4.img
+KERNEL_VER=$(git -C linux/ tag | sed "s/^v//")
+SRC=linux/out/lib/modules/$KERNEL_VER
+DEST=extras/lib/modules/$KERNEL_VER
+
+# Add path of kernel modules to load with dependency file, for example:
+# FILES='kernel/drivers/gpu/drm/drm.ko
+#        modules.dep'
+FILES=''
+
+mkdir -p extras
+
+for file in $FILES; do
+    mkdir -p `dirname $DEST/$file`
+    cp -f $SRC/$file $DEST/$file
+done
+
+cp -r libepoxy_out/* extras
+cp -r virglrenderer_out/* extras
+cp -r directfb/* extras
+cp target/run.sh extras
+
+#  DirectFB-example requires ~60MiB of space
+#dd if=/dev/zero of=${IMG} bs=4k count=20000
+#mkfs.ext4 -F ${IMG} -d extras
+
+#rm -rf extras
+
+# show image size
+#du -h ${IMG}

target/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/bash
+
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
+export PATH=$PATH:/usr/local/bin/