实现了对用户空间传入指针抽象的UserBufferReader/Writer，来检验用户空间指针地址并提供一定的功能抽象 #920

	name: Build Check

	on:
	push:
	branches: [ "master" ]
	pull_request:
	branches: [ "master" ]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: Cache DragonOS GCC
	id: cache-dragonos-gcc
	uses: actions/cache@v3
	env:
	cache-name: cache-dragonos-gcc
	with:
	path: \|
	~/opt
	key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('tools/build_gcc_toolchain.sh') }}

	- if: ${{ steps.cache-dragonos-gcc.outputs.cache-hit != 'true' }}
	name: build dragonos-gcc
	continue-on-error: true
	run: bash tools/build_gcc_toolchain.sh -f

	- name: Cache build tools
	id: cache-build-tools
	uses: actions/cache@v3
	env:
	cache-name: cache-build-tools
	dadk_version: 0.1.1
	with:
	path: \|
	~/.cargo
	~/.rustup
	~/.bashrc
	key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ env.dadk_version }}-${{ hashFiles('.github/workflows/makefile.yml') }}

	- if: ${{ steps.cache-build-tools.outputs.cache-hit != 'true' }}
	name: Install toolchain
	continue-on-error: true
	run: sudo sh -c "apt update && apt install -y llvm-dev libclang-dev clang gcc-multilib libssl-dev" && cargo install cargo-binutils && rustup toolchain install nightly && rustup default nightly && rustup component add rust-src && rustup component add llvm-tools-preview && rustup target add x86_64-unknown-none && rustup component add rust-src --toolchain nightly-x86_64-unknown-linux-gnu && cargo install dadk --version 0.1.1

	- name: build the DragonOS
	run: bash -c "source ~/.cargo/env && export DragonOS_GCC=$HOME/opt/dragonos-gcc/gcc-x86_64-unknown-none/bin && make -j $(nproc) "

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