From 5c1d8ca29c14d9325a26296dc07ca5d492caebd7 Mon Sep 17 00:00:00 2001
From: xtdumpling <5388186+xtdumpling@user.noreply.gitee.com>
Date: Tue, 22 Oct 2019 17:52:33 +0800
Subject: [PATCH] Add step to change the gn and ninja to executable, otherwise
 make would failed as permission denied.

---
 doc/Development_Preparation.md | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/doc/Development_Preparation.md b/doc/Development_Preparation.md
index 77a5a93080..11ee3ac4e9 100644
--- a/doc/Development_Preparation.md
+++ b/doc/Development_Preparation.md
@@ -40,7 +40,14 @@ GN_AR_COMPILER = "${MAPLE_ROOT}/tools/clang_llvm-8.0.0-x86_64-linux-gnu-ubuntu-1
 Ninja下载地址：https://github.com/ninja-build/ninja/releases
 GN下载地址：https://archive.softwareheritage.org/browse/content/sha1_git:2dc0d5b26caef44f467de8120b26f8aad8b878be/raw/?filename=gn
 
-将GN和Ninja可执行程序放置到openarkcompiler/tools目录，打开openarkcompiler/Makefile文件，将GN和NINJA两个变量配置为GN和Ninja可执行程序所在路径。例如：
+将GN和Ninja可执行程序放置到openarkcompiler/tools目录，然后修改这两个文件为可执行:
+```
+cd openarkcompiler/tools
+chmod 777 gn
+chmod 777 ninja
+```
+
+打开openarkcompiler/Makefile文件，将GN和NINJA两个变量配置为GN和Ninja可执行程序所在路径。例如：
 
 ```
 GN := ${MAPLE_ROOT}/tools/gn/gn
-- 
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