Merge pull request !477 from wcc/fstatfs

!388 fix mutex&pthread mould musl api:pthread_mutexattr_getrobust/pthread_mutexattr_setrobust/pthread_mutex_consistent/pthread_getconcurrency/pthread_setconcurrency
Merge pull request !388 from 王建军/mutex

Merge pull request !518 from zhushengle/sched_tick

Merge pull request !532 from zhushengle/sleep

Merge pull request !511 from Caoruihong/preserve_libs

   DoNanoSleep 接口以微秒为单位，纳秒级别的在转换成微秒时被整除为0，
导致转换成tick时为0，导致延时时触发yield，导致延时时间超大
Close #I3Z9DP
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: Ib662fdc80707be6040b2bb06a1b457344bd48b30

add fststfs api and unitest

Change-Id: I5e9fedd1bc26b77f080faf2fd3f5bf2f4a1dd9f7
Signed-off-by: Nwcc0 <917033401@qq.com>

Merge pull request !496 from Harylee/mem

preserve existing newer libs under lib and libs dir
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I5f91554890186f7760a73accb246240683b0558b

方案描述：
    1.周期软件定时器超时添加一个startTime字段，用于记录当前软件定时器的开始计时的时间，
    在定时器响应时，开始时间修改为上一次响应的结束时间(消除了中断执行时间对软件定时器
    的影响)。
    2.在执行tick中断的过程当中，持有tick动态计算锁，保证在该过程中不会触发tick周期
    的计算，在tick中断结束时统一计算设置。 --- 提升tick中断的执行效率
    3.在设置tick周期时，减掉tick中断执行的时间，减小周期动态化带来的时间误差
    4.新增LOSCFG_BASE_CORE_TICK_PER_SECOND_MINI配置宏，用于配置tick中断的最小响应精度
Close #I43UQJ
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: Icd1159a1890046b13602b7a18dcd6234d5c61a89

Merge pull request !513 from MGY917/clang_isolation

Merge pull request !517 from Caoruihong/hdf_config

liteos_a在apps/mksh和apps/toybox编译中，clang相关编译选项未进行隔离。之后支持
其他类似gcc编译时，可能存在编译问题。
其中 --target=$(LLVM_TARGET) $(LLVM_SYSROOT) 是clang编译特有的编译选项，需要被
隔离。

close #I444AV
Signed-off-by: NGuangyao Ma <guangyao.ma@outlook.com>
Change-Id: Ib11453aa0b3ee6bcdf3104d13d166c65f2202527

Merge pull request !484 from phchang/fixclockid

the name of the default group is the same with
the directory name.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I3d889a361534adc44e3b1bedfec13efe8e1babf2

Merge pull request !516 from zhushengle/spell

Close #I446CX
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: I49e80ffe1a7b579b82aaf45f599623b287eb8e98

Merge pull request !515 from SimonLi/master

Signed-off-by: NSimonLi <likailong@huawei.com>

Merge pull request !514 from lnlan/fix_stl

Merge pull request !512 from phchang/fixlience

Merge pull request !510 from Kiita/liteos_a_unittest

【背景】解除告警
【修改方案】
 格式化修改告警文件的文件头注释格式

re #I44497
Signed-off-by: Nlanleinan <lanleinan@163.com>

Change-Id: If9fa5de0f896ddf8c3fc88408c8f88f633fdb3e7

Merge pull request !509 from 野生毛霉君/master

【背景】解除告警
【修改方案】
 格式化修改告警文件的文件头注释格式

re #I44497
Signed-off-by: yansira <yansira@hotmail.com>
Change-Id: I88c7ade73b086fd0ee13574229d2a4b9795580ec

【背景】解除告警
【修改方案】
 格式化修改告警文件的文件头注释格式

re #I44497
Signed-off-by: Nvcbchang <vcbchang@qq.com>
Change-Id: I7a0d31e11603f591a5370e64505879e1a324d72d

close: #I4443Q
Signed-off-by: Nmucor <mucorwang@gmail.com>

Merge pull request !500 from Kiita/toybox_update_0802

Merge pull request !498 from pcwlno1/bbox_codex

1、判断安全函数的返回值。

Close #I43RQU
Signed-off-by: Npcwlno1 <qidechun@huawei.com>

【背景】liteos_a toybox 命令已知问题修复

【修改方案】
1、修复ls 统计文件大小问题。
Signed-off-by: yansira <yansira@hotmail.com>
Change-Id: I64c41d3970650a434409f332b2659e31bb9223ab

背景：对于mmap映射的区间，修改权限后对应的区间名丢失
方案：mprotect修改权限后，对应区间名继承原区间名

close #I43R40
Signed-off-by: NHaryslee <lihao189@huawei.com>
Change-Id: I969c93528cbecc2ded4e437e5aac8f82b8baa609

【背景】原来代码在计算由clockid计算pid或tid时用的是移位的方式，由于对于有符号和无符号数结果可能不一致，故这里对计算方法做了修改，修改为计算clockid的逆运算。

【修改方案】
计算pid或tid为计算clockid的逆运算

re #I4249G
Signed-off-by: Nvcbchang <vcbchang@qq.com>
Change-Id: I2952232ec7d8fc2d0c47163b00d0c772648a2bf8

Merge pull request !490 from Caoruihong/kernel_configs

for historical reason, the old config dir is used only for hcs_config
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I26f25d5ec81b4b4a0e96c30c3acb3f075107e19e

Merge pull request !485 from Caoruihong/liteipc_datasize

Merge pull request !488 from Caoruihong/unstripped_mksh_toybox

Merge pull request !479 from MGY917/toybox_strip_twice

Merge pull request !473 from MGY917/revert_wz

Merge pull request !473 from MGY917/revert_wz