Merge pull request !64 from Kiita/toybox_update

【背景】liteos_a toybox 命令升级升级

【修改方案】
1、help命令列表不支持命令删除。
2、cp命令和mv命令拷贝文件失败和文件损坏等问题修复。
3、修复du命令统计nfs文件大小为0问题修复。
4、修复ls命令nfs文件时间打印信息有误问题。
5、更新命令不支持入参列表。

re #I41N2A
Signed-off-by: yansira <yansira@hotmail.com>
Change-Id: Iaa112889739c4e5c36751d82d55be85eaf96ad62

Merge pull request !62 from Caoruihong/build_gn

Merge pull request !63 from wangchen/mutex_free

using gn build system
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I92d44564b8d0dd9977f841d76b71bcfb43f18d78

【背景】当前L0平台调用fopen时会创建线程锁，fclose中无对应释放的地方。

【修改方案】
在fclose中调用线程锁释放流程

【影响】
对现有的产品编译不会有影响。

re #I41LEO
Signed-off-by: Nwangchen <253227059@qq.com>

Merge pull request !61 from zhuoli72/master

Signed-off-by: Nzhuoli <pengzhuoli@huawei.com>

Merge pull request !58 from zhuoli72/master

Signed-off-by: Nzhuoli <pengzhuoli@huawei.com>

Merge pull request !57 from zhuoli72/master

Signed-off-by: Nzhuoli <pengzhuoli@huawei.com>

Merge pull request !56 from zhuoli72/master

1. Enable compilation of 7_hard_neon-vfpv4 target.
2. Modify cflags/ldflags to match orignal musl Makefile/configure.
3. Add script for configure musl source files, not enabled yet.
Signed-off-by: Nzhuoli <pengzhuoli@huawei.com>

Merge pull request !55 from zhuoli72/master

2. Add BUILD.gn and its components
Signed-off-by: Nzhuoli <pengzhuoli@huawei.com>

Merge pull request !49 from lnlan/musl_for_m

Merge pull request !51 from Caoruihong/linux_porting

since the prebuilts sysroot was deleted and auto-generated
at build time, we should add the linux porting modifications
from the origin prebuilt sysroot.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ib277e01709484facf367a4e073f8b286ebef9e78

Merge pull request !50 from boxi/upload

LiteOS_a中有部分配置宏进行了重复冗余定义，导致当头文件未被包含时，极易引入错误，
故对menuconfig配置宏进行统一处理，均使用#ifdef/#ifndef作为预编译判断方式

Close #I3YEGS

Change-Id: I0fbc7025029a694590a5fa403686916ade02b367
Signed-off-by: Nboxi <lewis.liulei@huawei.com>

Merge pull request !48 from Caoruihong/assert

musl c is not ready for replacement of toolchain's libc, we comment
out some conflict functions temporary.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ifd5e7aa39fd18db5b8c68f24791e9dcb706e257d

Merge pull request !46 from Caoruihong/liteos_m_build_gn

add BUILD.gn for liteos_m kernel portings.
add new posix api: htonl, htons, ntohl, ntohs
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I3581032659bdc68e98a9470050549faf9f8cbcbb

Merge pull request !45 from x_xiny/master

【背景】
 arm none eabi编译器适配

【修改方案】
 增加编译宏

 re #I3WVXZ
Signed-off-by: Nx_xiny <1301913191@qq.com>

 Change-Id: I834395ba5aeb0a4caeb642ac2fbf4553c30ac3f0

 Change-Id: Ifffd2b7fb3319e8b4a243acdc973e1a36a357e5d

Change-Id: Iefdfdeb5c42c623289185725c2c7e5d64da1159c

Merge pull request !43 from zhangfanfan2/master

Merge pull request !43 from zhangfanfan2/master

由于srand设置时间种子时未使用入参，导致时间种子设置失败，
引发rand生成随机端口固定

close: #I3V8WS
Signed-off-by: Nzff <zhangfanfan2@huawei.com>
Change-Id: Idabed287fa7584ae9c6f2cc966afa35032e24a70

Merge pull request !41 from Caoruihong/porting2

isolate changes, keep orignal musl sources clean.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Id7f3a5109771f93d397e30febba36e09ddaf4f36

Merge pull request !38 from JING/link

【背景】补充m核posix缺少接口。

【修改方案】
1. 添加stdin.c, __ctype_get_mb_cur_max.c

【影响】
对现有的产品编译不会有影响

re #
Signed-off-by: Nlanleinan <lanleinan@163.com>
Change-Id: I6f6864359d5cbe9a2465361bdabd7b4d45e03c8b

Merge pull request !35 from lnlan/fixed_pthread

Merge pull request !39 from Caoruihong/master

it will compile fail if vfs is turned off, we fixed it.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: If2de8c814541e39d491ea6189720aeb05a19e2e9

【背景】
sigaction参数sa_mask的设置方法不符合设置本意，某种情况下会导致进程屏蔽字被覆盖
【修改方案】
修改设置方法，在handle处理前设置屏蔽字，处理后恢复屏蔽字

【影响】
如果用户在handle中设置了屏蔽字，该屏蔽字会在handle结束时会被覆盖掉。已测试了所有
相关用例，均可通过。待在linux验证确认是问题后修复。

re #I3QQA9
Signed-off-by: Nlnlanc <lanleinan@163.com>

Change-Id: Ibc55b1c8720463c8ff68c22fbcb376d8d15bc1e4

close #I3Q0OD

Change-Id: I54f538e265619690889c424488993f1aefaa27ee
Signed-off-by: Nchenjing <chenjing139@huawei.com>

Merge pull request !31 from Zhaotianyu/0522copyright