Merge pull request !201 from LeonChan/lc-compile-warnings

Merge pull request !200 from LeonChan/lc-opendir-bug-fix

1, function prototypes: LfsSeek, LfsCloseDir
2, fix some other minor warnings and remove some while spaces

close: #I3Y57X
Signed-off-by: NLeon Chan <chenwei26@huawei.com>
Change-Id: Id8b77c8a6b2e8d2b9bc5f02e22bfc6a15d70f648

close: #I3Y577
Signed-off-by: NLeon Chan <chenwei26@huawei.com>

Merge pull request !198 from Caoruihong/liteos_m_build_gn

add deps to musl, and securec.
fwrap.c's contents are moved to musl.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ib451736798efd9745c6fbbbe5f355eea13477031

Merge pull request !199 from li_zan/master

close：#I3XU6R
Signed-off-by: Nli_zan <371442490@qq.com>

Merge pull request !195 from x_xiny/master

Merge pull request !194 from li_zan/master

Merge pull request !197 from zhangfanfan2/master

【背景】
 m核新增posix接口适配

【修改方案】
 接口新增sem_getvalue，并在内核适配相应接口

【影响】
 无

 re #I3WW8S
Signed-off-by: Nx_xiny <1301913191@qq.com>
 Change-Id: I65a4baa242aaedc2fec9b6ed705dbb1ddb6e70c9

Change-Id: Id4c38a5dd4ac4e90f1bd032a39dcb97ce29de5f9

close：#I3WWFA
Signed-off-by: Nli_zan <371442490@qq.com>

当任务A调用LOS_EventRead阻塞开中断后，突然响应中断B，此时任务A已入阻塞链表，
任务状态为OS_TASK_STATUS_PEND | OS_TASK_STATUS_RUNNING；而B的回调函数中调用
LOS_EventWrite唤醒任务A，这个过程会调用OsSchedTaskWake，将任务A从阻塞链表中
取出，并去除OS_TASK_STATUS_PEND状态，且调用OsSchedTaskEnQueue将任务A添
加到调度队列并增加OS_TASK_STATUS_READY状态。OsSchedTaskWake全部流程完成后，
会开中断并调用LOS_Schedule，在LOS_Schedule流程中由于当前任务为A，且状态为
OS_TASK_STATUS_RUNNING | OS_TASK_STATUS_READY，会再次调用OsSchedTaskEnQueue，
从而被OsSchedTaskEnQueue断言拦住。修改方式：当任务状态含有OS_TASK_STATUS_RUNNING时
OsSchedTaskWake中不调用OsSchedTaskEnQueue。

close: #I3VX9Y
Signed-off-by: Nzff <zhangfanfan2@huawei.com>
Change-Id: I28f33d25504ade47469980fd6bb0b922bf4756da

Merge pull request !196 from zhangfanfan2/master

close: #I3U9LE
Signed-off-by: Nzff <zhangfanfan2@huawei.com>
Change-Id: Iff1180b89958b4d8c339a73f9a5f59cb47707c74

Merge pull request !169 from zhushengle/PM

1.【需求描述】
　L0 支持低功耗投票框架, 使内核与应用、驱动分离开，通过注册及投票机制控制系统的低功耗模式,
  减低系统功耗,提升设备电池寿命。
2.【方案描述】
　(1).提供注册机制，使驱动与内核分离
  (2).提供投票机制，判断系统运行模式
  (3).记录持锁设备，便于回溯
  进入：系统运行进入idle任务时判断当前的功耗模式，如果上层应用未对当前功耗模式(deep和shutdown)
　持锁，则系统准备进入当前模式,首先所有设备依次进入当前模式，如果有设备进入当前模式失败，则恢复
　已进入当前模式的所有设备，并且功耗模式变为normal模式；设备依次进入当前功耗模式后cpu再进入当前
　功耗模式。
  恢复：功耗模式为deep时，需要恢复逻辑，时系统恢复运行。当有中断出发时，系统会退出低功耗模式，
  恢复顺序为：首先cpu先恢复，然后设备依次恢复。

BREAKING CHANGE:
1.原调度中基于tick timer的低功耗扩展和当前的pm模块合并，删除原对外接口LOS_SchedSleepInit,
　变为pm模块统一提供的LOS_PmRegistered接口.
2.原来在arch los_timer.h下提供的低功耗模式为枚举LOS_SysSleepEnum，其中OS_SYS_NORMAL_SLEEP
  和OS_SYS_DEEP_SLEEP不符合对外定义，统一修改为LOS_SYS_NORMAL_SLEEP和LOS_SYS_DEEP_SLEEP,
  并移至los_pm.h中.
3.VOID HalEnterSleep(LOS_SysSleepEnum sleep) 变更为UINT32 HalEnterSleep(VOID).

Close #I3UDNV
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: Id5382c42c8055ba7850895a3f575130a73e38a65

Merge pull request !184 from kenneth/LOS_ListHeadInsert

Merge pull request !182 from kenneth/HWI

Merge pull request !193 from zhushengle/sched

Merge pull request !192 from li_zan/master

注释中@see部分提到了函数LOS_ListHeadInsert，但是该函数没有定义，增加该函数的定义。

close #I3TAQA
Signed-off-by: kenneth <459864689@qq.com>

新增对外接口LOS_HwiCreate、LOS_HwiDelete

close #I3R75F
Signed-off-by: kenneth <459864689@qq.com>

close：#I3VZSI
Signed-off-by: Nli_zan <371442490@qq.com>

问题描述：
  当g_schedResponseTime = OS_SCHED_MAX_RESPONSE_TIME，且nextExpireTime =（UINT64-1时,
  表示系统的延时队列已为NULL,　此时tick timer 中应该设置为最大值，但由于判断
  g_schedResponseTime - nextExpireTime >= OS_CYCLE_PER_TICK,导致条件不成立，直接返回，
  无法将其设置为最大值，导致tick 中断一直频繁响应。
解决方案：
  将延时队列为NULL时的返回值以及idle线程的时间片修改为OS_SCHED_MAX_RESPONSE_TIME - OS_CYCLE_PER_TICK,
  保证延时队列为NULL，能够正常设置tick响应的最大值。

Close #I3W1LF

Change-Id: I0d09119240ae5a50ddcb0c96fb23cd3d6e70b892
Signed-off-by: Nzhushengle <zhushengle@huawei.com>

Merge pull request !191 from li_zan/master

close：#I3VT11
Signed-off-by: Nli_zan <371442490@qq.com>

Merge pull request !190 from Caoruihong/master

Merge pull request !189 from rtos-lover/bt_fix

the copy of bounds_checking_function under components was removed,
we should use the copy of bounds_checking_function under //third_party
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ib5c392f4d592a2fe6f26f6c1e1ea60f1faa836b9

fix issue that when memleak check is enabled, backtace is not enabled

close https://gitee.com/openharmony/kernel_liteos_m/issues/I3VTKDSigned-off-by: Nrtos-lover <zhushangyuan@hotmail.com>

Merge pull request !180 from kenneth/BackTraceInit

Merge pull request !178 from li_zan/master

change function name LOS_BackTraceInit and involve it in los_init.c when macro is not set to 0

close https://gitee.com/openharmony/kernel_liteos_m/issues/I3SYQQSigned-off-by: kenneth <459864689@qq.com>

close：I3VJ6X
Signed-off-by: Nli_zan <371442490@qq.com>

Merge pull request !179 from Caoruihong/master

path of posix header files are exposed via public_configs
of //kernel/liteos_m/kal/posix
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Id838549e1a952d6ddb8664792570f265edfbd91c

Merge pull request !176 from Caoruihong/porting2