Merge pull request !538 from JerryH/pipe

Merge pull request !553 from Lyb/master

Merge pull request !551 from 拓维信息候鹏飞/master

支持pipe管道驱动，支持poll多文件描述符检测接口。
Signed-off-by: NJerryH <huangjieliang@huawei.com>
Change-Id: Ida1f29709affbc91a26b8518e4a77b8e5469be19

Signed-off-by: NLyb <1576988680@qq.com>

Merge pull request !544 from wangchen/tskinfo

Merge pull request !546 from wangchen/cond

Signed-off-by: Nhoupengfei <houpengfei@talkweb.com.cn>

Merge pull request !550 from SimonLi/master

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

Merge pull request !540 from Zhaotianyu/0113newlib_add

【背景】L0 pthread_cond_timedwait接口存在计算溢出

【修改方案】
1，新增abstick 相关修改，先判断再转成32位，避免截断
2，LOS_Event相关函数返回值的处理已存在，无需处理
【影响】
对现有的产品编译不会有影响。

re #I4N9P8
Signed-off-by: Nwangchen <wangchen64@huawei.com>

Signed-off-by: Narvinzzz <zhaotianyu9@huawei.com>
Change-Id: I32f713800b5451bfd5350c10273f1513366d473a

【背景】OsGetAllTskInfo调用和异常时无任务回调函数地址

【修改方案】
1，新增tskinfo内容

【影响】
对现有的产品编译不会有影响。

re #I4MG2T
Signed-off-by: Nwangchen <wangchen64@huawei.com>

Merge pull request !537 from ouyk/master

Signed-off-by: ou-yangkan <519689417@qq.com>

Merge pull request !536 from ouyk/master

Signed-off-by: ou-yangkan <519689417@qq.com>

Merge pull request !509 from wangchen/atomic

Merge pull request !532 from gsshch/master

Merge pull request !535 from zhushengle/equal

Close #I4QERS
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: Ife2c6afdd47b4bc0407e07f6f629716d4d0f2d1e

Signed-off-by: Ngsshch <17326005269@163.com>

Merge pull request !531 from zhushengle/iar

1.数据类型转换
2.使用未初始化数据
3.无用的标签
4.pthread 线程退出后name指向野指针

Close #I4Q5Q5
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: Ib89390d8f61a355788da77651bf9aeee816561bb

Merge pull request !527 from JerryH/iar_thread_local

在需要IAR的thread_local特性时，在targets_config.h中包含los_iar_tls.h，覆盖los_config.h的默认定义，使能该特性。

close #I4PTVZ
Signed-off-by: NJerryH <huangjieliang@huawei.com>
Change-Id: I92d3f960555f95cb3618dd5e3915824105eb13a4

Merge pull request !528 from SimonLi/master

背景：
1. //kernel/liteos_m/BUILD.gn通过excutable生成config.gni文件到
out目录下
2. //kernel/liteos_m/liteos.gni定义内核模板，依赖out目录下的config.gni
意味着使用内核模板的模块（例如device/board、device/soc）需要依赖
kernel/liteos_m/BUILD.gn先加载，有这个顺序依赖约束。

解决方案：
将生成config.gni部分移到liteos.gni模块定义处，解决这个约束。
Signed-off-by: NSimonLi <likailong@huawei.com>

Merge pull request !497 from maweiye/master

Merge pull request !525 from zhushengle/readme

Merge pull request !517 from 王树林/master

Merge pull request !517 from 王树林/master

1.修正README不准确信息
2.新增内核编码规范指导

Close #I4PLWP
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: Iac96fb0a2e2bc80f82338921287c8ca987e89652

added 32-bit assembly atomic interface:

BREAKING CHANGE:
Assembly implementation:
    ArchAtomicRead
    ArchAtomicSet
    ArchAtomicAdd
    ArchAtomicSub
    ArchAtomicInc
    ArchAtomicIncRet
    ArchAtomicDec
    ArchAtomicDecRet

https://gitee.com/openharmony/kernel_liteos_m/issues/I4O1UCSigned-off-by: Nwang-shulin93 <15173259956@163.com>

Merge pull request !523 from zhushengle/tick_timer

    OS_SYS_CLOCK 宏由产品定义，该宏可能为函数，在编译时赋值无法覆盖该场景

Close #I4PGUR
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: I60e3f4fcd8f94b26c23cc88e0622408a24fbebe2

Merge pull request !522 from zhushengle/pthread

1. 系统调度未起时，调用pthread_create失败
  系统调度未起时，系统无运行任务，获取当前线程失败
2. 先创建任务再给任务赋值name，且未加锁保护，和shell存在静态

Close #I4P78J
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: I2570dcf90953ced06400a0a22193cc81719fb546

Merge pull request !480 from zhushengle/timer