# 5. Conf를 통한 Build 단순화

지금까지 EDKII를 이용하여 빌드를 진행할 때 특정 모듈과 플랫폼을 지정하여 빌드를 진행했다.

<pre><code>$ . edk2setup.sh
$ build --platform=UefiLessonsPkg/UefiLessonsPkg.dsc \
        --module=UefiLessonsPkg/HelloWorld/HelloWorld.inf \
<strong>        --arch=X64 \
</strong>        --buildtarget=RELEASE \
        --tagname=GCC5
</code></pre>

이 때 `. edk2setup.sh` 스크립트를 실행할 때 `Conf/target.txt` 가 자동 생성되어진다.\
해당 파일의 주석을 제외하고 대상에 대한 정보를 살펴보면 다음과 같다.

```
ACTIVE_PLATFORM       = OvmfPkg/OvmfPkgX64.dsc
TARGET                = DEBUG
TARGET_ARCH           = X64
TOOL_CHAIN_CONF       = Conf/tools_def.txt
TOOL_CHAIN_TAG        = GCC5
BUILD_RULE_CONF = Conf/build_rule.txt
```

위 정보를 원하는 빌드 대상으로 지정한 뒤에는 단일 명령어로도 빌드를 진행할 수 있다.

```
$ vi Conf/target.txt
-----
ACTIVE_PLATFORM       = UefiLessonsPkg/UefiLessonsPkg.dsc
TARGET                = RELEASE
TARGET_ARCH           = X64
TOOL_CHAIN_CONF       = Conf/tools_def.txt
TOOL_CHAIN_TAG        = GCC5
BUILD_RULE_CONF = Conf/build_rule.txt

$ build
```


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