refine

build.md

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+# Build ReDroid
+
+## Get Source
+- `repo init -u git@github.com:remote-android/platform_manifests.git -b [BRANCH] && repo sync -c`
+BRANCH could be redroid-8.1.0, redroid-9.0.0, redroid-10.0.0, redroid-11.0.0 ...
+
+## Build
+suggest build with [docker](./docker)
+
+```bash
+# intent changes for redroid-10.0.0 (copyfile hook during repo sync), DO NOT Panic
+# [Android Clang/LLVM Toolchain](https://android.googlesource.com/toolchain/llvm_android/)
+
+project prebuilts/clang/host/linux-x86/         (*** NO BRANCH ***)
+ -m     clang-r353983c/lib64/clang/9.0.3/lib/linux/libclang_rt.scudo_minimal-aarch64-android.a
+ -m     clang-r353983c/lib64/clang/9.0.3/lib/linux/libclang_rt.scudo_minimal-arm-android.a
+ -m     clang-r353983c/lib64/clang/9.0.3/lib/linux/libclang_rt.scudo_minimal-i686-android.a
+ -m     clang-r353983c/lib64/clang/9.0.3/lib/linux/libclang_rt.scudo_minimal-x86_64-android.a
+```
+
+## Run
+1. `export BUILD_OUT=~/redroid_out`
+2. create rootfs only image (Dev purpose): `cd $BUILD_OUT && sudo tar --xattrs -c -C root . | docker import -c 'ENTRYPOINT ["/init", "qemu=1", "androidboot.hardware=redroid"]' - redroid-dev`
+3. run with rootfs only image: `docker run -v ~/data:/data -itd -p 5900:5900 -p 5555:5555 --rm --memory-swappiness=0 --privileged -v $BUILD_OUT/redroid_x86_64/system:/system -v $BUILD_OUT/redroid_x86_64/vendor:/vendor redroid-dev`
+4. create full image: `cd $BUILD_OUT && sudo tar --xattrs -c system vendor -C root --exclude="system" --exclude="vendor" . | docker import -c 'ENTRYPOINT ["/init", "qemu=1", "androidboot.hardware=redroid"]' - redroid`
+5. run with full image: `docker run -v ~/data:/data -itd -p 5900:5900 -p 5555:5555 --rm --memory-swappiness=0 --privileged redroid`