Merge branch 'master' into master

37 files changed, 77 insertions, 45 deletions

diff --git a/components/libc/compilers/armlibc/libc_syms.c b/components/libc/compilers/armlibc/libc_syms.c
index 829d57b559..2b370a25a6 100644
--- a/components/libc/compilers/armlibc/libc_syms.c
+++ b/components/libc/compilers/armlibc/libc_syms.c
@@ -6,6 +6,7 @@
  * Change Logs:
  * Date           Author       Notes
  */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/components/libc/compilers/armlibc/syscalls.c b/components/libc/compilers/armlibc/syscalls.c
index f4ced9d3c0..82c0f38b4f 100644
--- a/components/libc/compilers/armlibc/syscalls.c
+++ b/components/libc/compilers/armlibc/syscalls.c
@@ -204,7 +204,7 @@ int _sys_write(FILEHANDLE fh, const unsigned char *buf, unsigned len, int mode)
 
     if (fh == STDOUT || fh == STDERR)
     {
-#ifdef RT_USING_CONSOLE
+#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
         rt_device_t console;
         console = rt_console_get_device();
         if (console)
@@ -214,7 +214,7 @@ int _sys_write(FILEHANDLE fh, const unsigned char *buf, unsigned len, int mode)
         return 0; /* success */
 #else
         return 0; /* error */
-#endif /* RT_USING_CONSOLE */
+#endif /* defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE) */
     }
     else if (fh == STDIN)
     {
diff --git a/components/libc/compilers/common/compiler_private.h b/components/libc/compilers/common/compiler_private.h
index 96a49efc7a..7f6b42e837 100644
--- a/components/libc/compilers/common/compiler_private.h
+++ b/components/libc/compilers/common/compiler_private.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-12-26     Meco Man     First Version
  */
+
 #ifndef __COMPILER_PRIVATE_H__
 #define __COMPILER_PRIVATE_H__
 
diff --git a/components/libc/compilers/common/dirent.h b/components/libc/compilers/common/dirent.h
index a6353fd6f8..a9c7ef856d 100644
--- a/components/libc/compilers/common/dirent.h
+++ b/components/libc/compilers/common/dirent.h
@@ -6,6 +6,7 @@
  * Change Logs:
  * Date           Author       Notes
  */
+
 #ifndef __DIRENT_H__
 #define __DIRENT_H__
 
diff --git a/components/libc/compilers/common/nogcc/fcntl.h b/components/libc/compilers/common/nogcc/fcntl.h
index 51ee1024a8..83c3ec0b6b 100644
--- a/components/libc/compilers/common/nogcc/fcntl.h
+++ b/components/libc/compilers/common/nogcc/fcntl.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-09-02     Meco Man     First version
  */
+
 #ifndef __FCNTL_H__
 #define __FCNTL_H__
 
diff --git a/components/libc/compilers/common/nogcc/sys/errno.h b/components/libc/compilers/common/nogcc/sys/errno.h
index 1c6cd6d18d..d53ce4b386 100644
--- a/components/libc/compilers/common/nogcc/sys/errno.h
+++ b/components/libc/compilers/common/nogcc/sys/errno.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-05-22     Meco Man     The first version.
  */
+
 #ifndef __SYS_ERRNO_H__
 #define __SYS_ERRNO_H__
 
diff --git a/components/libc/compilers/common/nogcc/sys/types.h b/components/libc/compilers/common/nogcc/sys/types.h
index 5672f54a4d..32b2493c95 100644
--- a/components/libc/compilers/common/nogcc/sys/types.h
+++ b/components/libc/compilers/common/nogcc/sys/types.h
@@ -8,6 +8,7 @@
  * 2020-09-05     Meco Man     fix bugs
  * 2020-12-16     Meco Man     add useconds_t
  */
+
 #ifndef __SYS_TYPES_H__
 #define __SYS_TYPES_H__
 
diff --git a/components/libc/compilers/common/nogcc/sys/unistd.h b/components/libc/compilers/common/nogcc/sys/unistd.h
index 6195c4c2aa..650c87dc18 100644
--- a/components/libc/compilers/common/nogcc/sys/unistd.h
+++ b/components/libc/compilers/common/nogcc/sys/unistd.h
@@ -8,6 +8,7 @@
  * 2020-12-16     Meco Man     add usleep
  * 2021-09-11     Meco Man     move functions from dfs_posix.h to unistd.h
  */
+
 #ifndef __SYS_UNISTD_H__
 #define __SYS_UNISTD_H__
 
diff --git a/components/libc/compilers/common/nogcc/unistd.h b/components/libc/compilers/common/nogcc/unistd.h
index 9b96d45adb..4dd71c842e 100644
--- a/components/libc/compilers/common/nogcc/unistd.h
+++ b/components/libc/compilers/common/nogcc/unistd.h
@@ -6,4 +6,5 @@
  * Change Logs:
  * Date           Author       Notes
  */
+
 #include "sys/unistd.h"
diff --git a/components/libc/compilers/common/sys/ioctl.h b/components/libc/compilers/common/sys/ioctl.h
index a1642199b1..d93c79115a 100644
--- a/components/libc/compilers/common/sys/ioctl.h
+++ b/components/libc/compilers/common/sys/ioctl.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2020-09-01     Meco Man     First Version
  */
+
 #ifndef __SYS_IOCTL_H__
 #define __SYS_IOCTL_H__
 
diff --git a/components/libc/compilers/common/sys/statfs.h b/components/libc/compilers/common/sys/statfs.h
index 0c6dc44df3..a86a789475 100644
--- a/components/libc/compilers/common/sys/statfs.h
+++ b/components/libc/compilers/common/sys/statfs.h
@@ -6,6 +6,7 @@
  * Change Logs:
  * Date           Author       Notes
  */
+
 #ifndef __SYS_STATFS_H__
 #define __SYS_STATFS_H__
 
diff --git a/components/libc/compilers/common/sys/time.h b/components/libc/compilers/common/sys/time.h
index 55c60d716e..758333796d 100644
--- a/components/libc/compilers/common/sys/time.h
+++ b/components/libc/compilers/common/sys/time.h
@@ -8,6 +8,7 @@
  * 2020-09-07     Meco Man     combine gcc armcc iccarm
  * 2021-02-12     Meco Man     move all definitions located in <clock_time.h> to this file
  */
+
 #ifndef __SYS_TIME_H__
 #define __SYS_TIME_H__
 
@@ -42,20 +43,14 @@ struct timezone
     int tz_dsttime;       /* type of dst correction */
 };
 
-/*
- * Structure returned by gettimeofday(2) system call,
- * and used in other calls.
- */
-#ifndef _TIMEVAL_DEFINED
+#if !defined(_TIMEVAL_DEFINED) && !defined(_WIN32)
 #define _TIMEVAL_DEFINED
-#if !defined(_WIN32)
 struct timeval
 {
     time_t      tv_sec;     /* seconds */
     suseconds_t tv_usec;    /* and microseconds */
 };
 #endif
-#endif /* _TIMEVAL_DEFINED */
 
 #if !(defined(__GNUC__) && !defined(__ARMCC_VERSION)/*GCC*/) && \
     !(defined(__ICCARM__) && (__VER__ >= 8010001)) && \
@@ -73,8 +68,22 @@ int gettimeofday(struct timeval *tv, struct timezone *tz);
 int settimeofday(const struct timeval *tv, const struct timezone *tz);
 #if defined(__ARMCC_VERSION) || defined (__ICCARM__)
 struct tm *gmtime_r(const time_t *timep, struct tm *r);
+#elif defined(_WIN32)
+struct tm* gmtime_r(const time_t* timep, struct tm* r);
+struct tm* gmtime(const time_t* t);
+struct tm* localtime_r(const time_t* t, struct tm* r);
+struct tm* localtime(const time_t* t);
+time_t mktime(struct tm* const t);
+char* asctime_r(const struct tm* t, char* buf);
+char* ctime_r(const time_t* tim_p, char* result);
+char* ctime(const time_t* tim_p);
+time_t time(time_t* t);
 #endif
 
+#ifdef RT_USING_POSIX_DELAY
+int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
+#endif /* RT_USING_POSIX_DELAY */
+
 #ifdef RT_USING_POSIX_CLOCK
 /* POSIX clock and timer */
 #define MILLISECOND_PER_SECOND  1000UL
@@ -106,7 +115,6 @@ int clock_getres  (clockid_t clockid, struct timespec *res);
 int clock_gettime (clockid_t clockid, struct timespec *tp);
 int clock_settime (clockid_t clockid, const struct timespec *tp);
 int clock_nanosleep(clockid_t clockid, int flags, const struct timespec *rqtp, struct timespec *rmtp);
-int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
 int rt_timespec_to_tick(const struct timespec *time);
 #endif /* RT_USING_POSIX_CLOCK */
 
diff --git a/components/libc/compilers/common/sys/vfs.h b/components/libc/compilers/common/sys/vfs.h
index 00739ab1c6..a9330df002 100644
--- a/components/libc/compilers/common/sys/vfs.h
+++ b/components/libc/compilers/common/sys/vfs.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-09-11     Meco Man     First version
  */
+
 #ifndef __SYS_VFS_H__
 #define __SYS_VFS_H__
 
diff --git a/components/libc/compilers/common/time.c b/components/libc/compilers/common/time.c
index 256268a3fc..46bb0c1355 100644
--- a/components/libc/compilers/common/time.c
+++ b/components/libc/compilers/common/time.c
@@ -217,7 +217,7 @@ struct tm* localtime_r(const time_t* t, struct tm* r)
 {
     time_t local_tz;
 
-    local_tz = *t + tz_get() * 3600;
+    local_tz = *t + (time_t)tz_get() * 3600;
     return gmtime_r(&local_tz, r);
 }
 RTM_EXPORT(localtime_r);
@@ -234,7 +234,7 @@ time_t mktime(struct tm * const t)
     time_t timestamp;
 
     timestamp = timegm(t);
-    timestamp = timestamp - 3600 * tz_get();
+    timestamp = timestamp - 3600 * (time_t)tz_get();
     return timestamp;
 }
 RTM_EXPORT(mktime);
@@ -367,7 +367,7 @@ time_t timegm(struct tm * const t)
 {
     register time_t day;
     register time_t i;
-    register time_t years = t->tm_year - 70;
+    register time_t years = (time_t)t->tm_year - 70;
 
     if (t->tm_sec > 60)
     {
@@ -488,8 +488,18 @@ RTM_EXPORT(settimeofday);
 RTM_EXPORT(difftime);
 RTM_EXPORT(strftime);
 
-#ifdef RT_USING_POSIX_CLOCK
+#ifdef RT_USING_POSIX_DELAY
 #include <delay.h>
+int nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
+{
+    sleep(rqtp->tv_sec);
+    ndelay(rqtp->tv_nsec);
+    return 0;
+}
+RTM_EXPORT(nanosleep);
+#endif /* RT_USING_POSIX_DELAY */
+
+#ifdef RT_USING_POSIX_CLOCK
 #ifdef RT_USING_RTC
 static volatile struct timeval _timevalue;
 static int _rt_clock_time_system_init()
@@ -670,33 +680,6 @@ int clock_settime(clockid_t clockid, const struct timespec *tp)
 }
 RTM_EXPORT(clock_settime);
 
-int nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
-{
-    uint32_t time_ms = rqtp->tv_sec * 1000;
-    uint32_t time_us = rqtp->tv_nsec / 1000;
-
-    time_ms += time_us / 1000 ;
-    time_us = time_us % 1000;
-
-    if (rt_thread_self() != RT_NULL)
-    {
-        rt_thread_mdelay(time_ms);
-    }
-    else  /* scheduler has not run yet */
-    {
-        while(time_ms > 0)
-        {
-            udelay(1000u);
-            time_ms -= 1;
-        }
-    }
-
-    udelay(time_us);
-
-    return 0;
-}
-RTM_EXPORT(nanosleep);
-
 int rt_timespec_to_tick(const struct timespec *time)
 {
     int tick;
diff --git a/components/libc/compilers/dlib/syscall_close.c b/components/libc/compilers/dlib/syscall_close.c
index 294c81f6c0..736023023d 100644
--- a/components/libc/compilers/dlib/syscall_close.c
+++ b/components/libc/compilers/dlib/syscall_close.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2015-01-28     Bernard      first version
  */
+
 #include <rtthread.h>
 #include <LowLevelIOInterface.h>
 #include <unistd.h>
diff --git a/components/libc/compilers/dlib/syscall_lseek.c b/components/libc/compilers/dlib/syscall_lseek.c
index 3bfec38998..b2c47e71c9 100644
--- a/components/libc/compilers/dlib/syscall_lseek.c
+++ b/components/libc/compilers/dlib/syscall_lseek.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2015-01-28     Bernard      first version
  */
+
 #include <rtthread.h>
 #include <LowLevelIOInterface.h>
 #include <unistd.h>
diff --git a/components/libc/compilers/dlib/syscall_mem.c b/components/libc/compilers/dlib/syscall_mem.c
index 57060da842..2de0974e4e 100644
--- a/components/libc/compilers/dlib/syscall_mem.c
+++ b/components/libc/compilers/dlib/syscall_mem.c
@@ -8,6 +8,7 @@
  * 2015-01-28     Bernard      first version
  * 2021-11-13     Meco Man     implement no-heap warning
  */
+
 #include <rtthread.h>
 #include <stddef.h>
 
diff --git a/components/libc/compilers/dlib/syscall_remove.c b/components/libc/compilers/dlib/syscall_remove.c
index 40c51164a9..04230544da 100644
--- a/components/libc/compilers/dlib/syscall_remove.c
+++ b/components/libc/compilers/dlib/syscall_remove.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2015-01-28     Bernard      first version
  */
+
 #include <rtthread.h>
 #include <LowLevelIOInterface.h>
 #include <unistd.h>
diff --git a/components/libc/compilers/dlib/syscall_write.c b/components/libc/compilers/dlib/syscall_write.c
index 3af08daba9..4eead9aa38 100644
--- a/components/libc/compilers/dlib/syscall_write.c
+++ b/components/libc/compilers/dlib/syscall_write.c
@@ -40,7 +40,7 @@ size_t __write(int handle, const unsigned char *buf, size_t len)
 
     if ((handle == _LLIO_STDOUT) || (handle == _LLIO_STDERR))
     {
-#ifdef RT_USING_CONSOLE
+#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
         rt_device_t console_device;
 
         console_device = rt_console_get_device();
@@ -52,7 +52,7 @@ size_t __write(int handle, const unsigned char *buf, size_t len)
         return len; /* return the length of the data written */
 #else
         return _LLIO_ERROR;
-#endif /* RT_USING_CONSOLE */
+#endif /* defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE) */
     }
     else if (handle == _LLIO_STDIN)
     {
diff --git a/components/libc/compilers/dlib/syscalls.c b/components/libc/compilers/dlib/syscalls.c
index 1ee6a3bc12..391cbcac8a 100644
--- a/components/libc/compilers/dlib/syscalls.c
+++ b/components/libc/compilers/dlib/syscalls.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-02-13     Meco Man     implement exit() and abort()
  */
+
 #include <rtthread.h>
 
 /* for exit() and abort() */
diff --git a/components/libc/compilers/gcc/newlib/fcntl.h b/components/libc/compilers/gcc/newlib/fcntl.h
index 239eaaef0d..847ae3d35b 100644
--- a/components/libc/compilers/gcc/newlib/fcntl.h
+++ b/components/libc/compilers/gcc/newlib/fcntl.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-09-02     Meco Man     First version
  */
+
 #ifndef __FCNTL_H__
 #define __FCNTL_H__
 
diff --git a/components/libc/compilers/gcc/newlib/libc_syms.c b/components/libc/compilers/gcc/newlib/libc_syms.c
index aaf6980d6b..e6ca23b393 100644
--- a/components/libc/compilers/gcc/newlib/libc_syms.c
+++ b/components/libc/compilers/gcc/newlib/libc_syms.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2017/10/15     bernard      the first version
  */
+
 #include <rtthread.h>
 #include <rtm.h>
 
diff --git a/components/libc/compilers/gcc/newlib/machine/time.h b/components/libc/compilers/gcc/newlib/machine/time.h
index 9ef838f892..805b061aea 100644
--- a/components/libc/compilers/gcc/newlib/machine/time.h
+++ b/components/libc/compilers/gcc/newlib/machine/time.h
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-02-16     Meco Man     The first version
+ */
+
 #ifndef _MACHTIME_H_
 #define _MACHTIME_H_
 
diff --git a/components/libc/compilers/gcc/newlib/syscalls.c b/components/libc/compilers/gcc/newlib/syscalls.c
index d8a8ba6945..dcf26ccfb7 100644
--- a/components/libc/compilers/gcc/newlib/syscalls.c
+++ b/components/libc/compilers/gcc/newlib/syscalls.c
@@ -297,7 +297,7 @@ _ssize_t _write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
 
     if (fd == STDOUT_FILENO || fd == STDERR_FILENO)
     {
-#ifdef RT_USING_CONSOLE
+#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
         rt_device_t console;
 
         console = rt_console_get_device();
@@ -306,7 +306,7 @@ _ssize_t _write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
 #else
         ptr->_errno = ENOTSUP;
         return -1;
-#endif /* RT_USING_CONSOLE */
+#endif /* defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE) */
     }
     else if (fd == STDIN_FILENO)
     {
diff --git a/components/libc/posix/delay/delay.c b/components/libc/posix/delay/delay.c
index c8564dc54e..753ca48526 100644
--- a/components/libc/posix/delay/delay.c
+++ b/components/libc/posix/delay/delay.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-05-07     Meco Man     first Version
  */
+
 #include <sys/types.h>
 #include <rtthread.h>
 #include <rthw.h>
diff --git a/components/libc/posix/delay/delay.h b/components/libc/posix/delay/delay.h
index f32708af55..19492bdb45 100644
--- a/components/libc/posix/delay/delay.h
+++ b/components/libc/posix/delay/delay.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-05-07     Meco Man     first Version
  */
+
 #ifndef __DELAY_H__
 #define __DELAY_H__
 
diff --git a/components/libc/posix/io/libc.c b/components/libc/posix/io/libc.c
index d8780b1b31..e57749f1da 100644
--- a/components/libc/posix/io/libc.c
+++ b/components/libc/posix/io/libc.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2017/10/15     bernard      the first version
  */
+
 #include <rtthread.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/components/libc/posix/io/libc.h b/components/libc/posix/io/libc.h
index 983a927dc3..6b5dfd1fcc 100644
--- a/components/libc/posix/io/libc.h
+++ b/components/libc/posix/io/libc.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2017/10/15     bernard      the first version
  */
+
 #ifndef __RTT_LIBC_H__
 #define __RTT_LIBC_H__
 
diff --git a/components/libc/posix/io/poll/poll.c b/components/libc/posix/io/poll/poll.c
index a1500ba109..3c5940b8d3 100644
--- a/components/libc/posix/io/poll/poll.c
+++ b/components/libc/posix/io/poll/poll.c
@@ -8,6 +8,7 @@
  * 2016-12-28     Bernard      first version
  * 2018-03-09     Bernard      Add protection for pt->triggered.
  */
+
 #include <stdint.h>
 #include <rthw.h>
 #include <rtthread.h>
diff --git a/components/libc/posix/io/poll/poll.h b/components/libc/posix/io/poll/poll.h
index aea73d6eaf..0fccd48b0d 100644
--- a/components/libc/posix/io/poll/poll.h
+++ b/components/libc/posix/io/poll/poll.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-09-11     Meco Man     First version
  */
+
 #ifndef __POLL_H__
 #define __POLL_H__
 
diff --git a/components/libc/posix/io/select.c b/components/libc/posix/io/select.c
index 55d320e921..bac63258a5 100644
--- a/components/libc/posix/io/select.c
+++ b/components/libc/posix/io/select.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2016-12-28     Bernard      first version
  */
+
 #include <rtthread.h>
 #include <poll.h>
 #include <sys/select.h>
diff --git a/components/libc/posix/io/termios/termios.c b/components/libc/posix/io/termios/termios.c
index d7d869d67f..44e0e80853 100644
--- a/components/libc/posix/io/termios/termios.c
+++ b/components/libc/posix/io/termios/termios.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2017/08/30     Bernard      The first version
  */
+
 #include <stdlib.h>
 #include <string.h>
 #include <dfs_posix.h>
diff --git a/components/libc/posix/io/termios/termios.h b/components/libc/posix/io/termios/termios.h
index b647fa0728..27f2db85b0 100644
--- a/components/libc/posix/io/termios/termios.h
+++ b/components/libc/posix/io/termios/termios.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2017/08/30     Bernard      The first version
  */
+
 #ifndef __TERMIOS_H__
 #define __TERMIOS_H__
 
diff --git a/components/libc/posix/ipc/system-v/sys/ipc.h b/components/libc/posix/ipc/system-v/sys/ipc.h
index 03b5458d51..f4ac50a1e9 100644
--- a/components/libc/posix/ipc/system-v/sys/ipc.h
+++ b/components/libc/posix/ipc/system-v/sys/ipc.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-12-07     Meco Man     First version
  */
+
 #ifndef __SYS_IPC_H__
 #define __SYS_IPC_H__
 
diff --git a/components/libc/posix/ipc/system-v/sys/msg.h b/components/libc/posix/ipc/system-v/sys/msg.h
index c030c9e8cb..1489586a32 100644
--- a/components/libc/posix/ipc/system-v/sys/msg.h
+++ b/components/libc/posix/ipc/system-v/sys/msg.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-12-07     Meco Man     First version
  */
+
 #ifndef __SYS_MSG_H__
 #define __SYS_MSG_H__
 
diff --git a/components/libc/posix/ipc/system-v/sys/sem.h b/components/libc/posix/ipc/system-v/sys/sem.h
index fdb70496d8..4a32c91204 100644
--- a/components/libc/posix/ipc/system-v/sys/sem.h
+++ b/components/libc/posix/ipc/system-v/sys/sem.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-12-07     Meco Man     First version
  */
+
 #ifndef __SYS_SEM_H__
 #define __SYS_SEM_H__
 
diff --git a/components/libc/posix/ipc/system-v/sys/shm.h b/components/libc/posix/ipc/system-v/sys/shm.h
index 762d68891a..5b536067fc 100644
--- a/components/libc/posix/ipc/system-v/sys/shm.h
+++ b/components/libc/posix/ipc/system-v/sys/shm.h
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2021-12-07     Meco Man     First version
  */
+
 #ifndef __SYS_SHM_H__
 #define __SYS_SHM_H__