修复社区反馈问题Percpu结构体注释错误，排查下其他拼写错误。

close #I4GMLH
Signed-off-by: Nkenneth <zhushangyuan@huawei.com>

Change-Id: Ia6dbff0faed4ec73fcf35691676f1acb2b8df78d
Signed-off-by: Nhuangshan <huangshan9@huawei.com>

Signed-off-by: Nhuangshan <huangshan9@huawei.com>
Change-Id: I5861569c63fd6c1adf8c702797e4d79eba76211f

Change-Id: Id3f56ac53ec5a3c86b04bcb7a4611f2eb77f4b80
Signed-off-by: Nuhamc <uhamc@foxmail.com>

Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ibb4223ef2d032a03950263b766414ca1c021e69a

Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ie152b0ad21af5dc8e8c31c71f236500e5726e1c4

Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ie2dfa7334417ccd55bd56a19a7882a982ce49cab

【背景】liteos_a需要支持toybox缺失的自研shell命令

【修改方案】
新增自研shell命令的入口判断场景，使得mksh可以执行自研shell的命令

re #I44U0H
Signed-off-by: yansira <yansira@hotmail.com>
Change-Id: Idf08cb6df456bd6c89fe8fe505317f1c0ca61eda

add BUILD.gn for all kernel modules
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I018446427bf64615f2596d47862b219659b58b34

1. 修复可能对NULL指针解引用的场景
2. 将不修改内容的指针入参修改为const
3. 对getpgrp的返回值进行校验后再使用
4. 修复了局部变量未初始化的问题

Close #I3UOFN
Signed-off-by: NFar <yesiyuan2@huawei.com>

Close #I3QMN1

Change-Id: I0ddd0c4474f5f6b5a2b1dd6608d642167b5548e6

Change-Id: I0a6e6f2962ca6904c858898eb93a5b2f93e85b69

Change-Id: I052d930d54e63179b17b77f02c107a015f3cfc3f

Feature or Bugfix:Feature
Binary Source:Huawei
PrivateCode(Yes/No):Yes

Change-Id: I175d2648bc6f9078c34de2c0a5c93fda10b86c47
ChangeID:13306388

Change-Id: Ia6c1f6302407a707b3ec9b805f4c92d8a7970b86