Merge branch 'RT-Thread:master' into master

16 files changed, 10 insertions, 304 deletions

diff --git a/components/libc/compilers/armlibc/dirent.h b/components/libc/compilers/armlibc/dirent.h
deleted file mode 100644
index d3bc58cbc5..0000000000
--- a/components/libc/compilers/armlibc/dirent.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-#ifndef __RTT_DIRENT_H__
-#define __RTT_DIRENT_H__
-
-#include <rtthread.h>
-#include <rtlibc.h>
-
-/*
-* dirent.h - format of directory entries
- * Ref: http://www.opengroup.org/onlinepubs/009695399/basedefs/dirent.h.html
- */
-
-/* File types */
-#define FT_REGULAR		0	/* regular file */
-#define FT_SOCKET		1	/* socket file  */
-#define FT_DIRECTORY	2	/* directory    */
-#define FT_USER			3	/* user defined */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef HAVE_DIR_STRUCTURE
-typedef struct 
-{
-	int fd;							/* directory file */
-	char buf[512];
-	int num;
-	int cur;
-} DIR;
-#endif
-
-#ifndef HAVE_DIRENT_STRUCTURE
-struct dirent
-{
-	rt_uint8_t  d_type;				/* The type of the file */
-	rt_uint8_t  d_namlen;			/* The length of the not including the terminating null file name */
-	rt_uint16_t d_reclen;			/* length of this record */
-	char d_name[256];				/* The null-terminated file name */
-};
-#endif
-
-int            closedir(DIR *);
-DIR           *opendir(const char *);
-struct dirent *readdir(DIR *);
-int            readdir_r(DIR *, struct dirent *, struct dirent **);
-void           rewinddir(DIR *);
-void           seekdir(DIR *, long int);
-long           telldir(DIR *);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/components/libc/compilers/armlibc/fcntl.h b/components/libc/compilers/armlibc/fcntl.h
deleted file mode 100644
index 3e650a8471..0000000000
--- a/components/libc/compilers/armlibc/fcntl.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-#ifndef FCNTL_H__
-#define FCNTL_H__
-
-#include <rtconfig.h>
-
-#ifdef RT_USING_DFS
-#include <dfs_posix.h>
-#endif
-
-#endif
diff --git a/components/libc/compilers/armlibc/libc.c b/components/libc/compilers/armlibc/libc.c
index fee390d4b4..971ddb8d49 100644
--- a/components/libc/compilers/armlibc/libc.c
+++ b/components/libc/compilers/armlibc/libc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/libc.h b/components/libc/compilers/armlibc/libc.h
index b9b1b6212d..aecf8cdc50 100644
--- a/components/libc/compilers/armlibc/libc.h
+++ b/components/libc/compilers/armlibc/libc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/libc_syms.c b/components/libc/compilers/armlibc/libc_syms.c
index 0e1c42d899..829d57b559 100644
--- a/components/libc/compilers/armlibc/libc_syms.c
+++ b/components/libc/compilers/armlibc/libc_syms.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -10,8 +10,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
-#include <time.h>
-
 #include <rtm.h>
 
 /* some export routines for module */
@@ -35,11 +33,6 @@ RTM_EXPORT(memchr);
 RTM_EXPORT(toupper);
 RTM_EXPORT(atoi);
 
-#ifdef RT_USING_RTC
-RTM_EXPORT(localtime);
-RTM_EXPORT(time);
-#endif
-
 /* import the full stdio for printf */
 #if defined(RT_USING_MODULE) && defined(__MICROLIB)
 #error "[RT_USING_LIBC] Please use standard libc but not microlib."
diff --git a/components/libc/compilers/armlibc/mem_std.c b/components/libc/compilers/armlibc/mem_std.c
index e160104a25..c350aa68fa 100644
--- a/components/libc/compilers/armlibc/mem_std.c
+++ b/components/libc/compilers/armlibc/mem_std.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/stdio.c b/components/libc/compilers/armlibc/stdio.c
index 5262a4dd92..c786c78aa5 100644
--- a/components/libc/compilers/armlibc/stdio.c
+++ b/components/libc/compilers/armlibc/stdio.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/libc/compilers/armlibc/sys/README.md b/components/libc/compilers/armlibc/sys/README.md
deleted file mode 100644
index 7ad10a7d43..0000000000
--- a/components/libc/compilers/armlibc/sys/README.md
+++ /dev/null
@@ -1 +0,0 @@
-Because Keil MDK leaks some system header file, we put them in here. 
\ No newline at end of file
diff --git a/components/libc/compilers/armlibc/sys/errno.h b/components/libc/compilers/armlibc/sys/errno.h
deleted file mode 100644
index 9c4307ebfb..0000000000
--- a/components/libc/compilers/armlibc/sys/errno.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-#ifndef SYS_ERRNO_H__
-#define SYS_ERRNO_H__
-
-#include <rtthread.h>
-
-#endif
diff --git a/components/libc/compilers/armlibc/sys/ioctl.h b/components/libc/compilers/armlibc/sys/ioctl.h
deleted file mode 100644
index 033a57014a..0000000000
--- a/components/libc/compilers/armlibc/sys/ioctl.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2020-09-01     Meco Man     First Version
- */
-#ifndef _SYS_IOCTL_H
-#define _SYS_IOCTL_H
-
-
-
-#endif
diff --git a/components/libc/compilers/armlibc/sys/mman.h b/components/libc/compilers/armlibc/sys/mman.h
deleted file mode 100644
index 8c61b32b7c..0000000000
--- a/components/libc/compilers/armlibc/sys/mman.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2017/11/30     Bernard      The first version.
- */
-
-#ifndef _SYS_MMAN_H
-#define _SYS_MMAN_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define MAP_FAILED     ((void *) -1)
-
-#define MAP_SHARED     0x01
-#define MAP_PRIVATE    0x02
-#define MAP_TYPE       0x0f
-#define MAP_FIXED      0x10
-#define MAP_ANON       0x20
-#define MAP_ANONYMOUS  MAP_ANON
-#define MAP_NORESERVE  0x4000
-#define MAP_GROWSDOWN  0x0100
-#define MAP_DENYWRITE  0x0800
-#define MAP_EXECUTABLE 0x1000
-#define MAP_LOCKED     0x2000
-#define MAP_POPULATE   0x8000
-#define MAP_NONBLOCK   0x10000
-#define MAP_STACK      0x20000
-#define MAP_HUGETLB    0x40000
-#define MAP_FILE       0
-
-#define PROT_NONE      0
-#define PROT_READ      1
-#define PROT_WRITE     2
-#define PROT_EXEC      4
-#define PROT_GROWSDOWN 0x01000000
-#define PROT_GROWSUP   0x02000000
-
-#define MS_ASYNC       1
-#define MS_INVALIDATE  2
-#define MS_SYNC        4
-
-#define MCL_CURRENT    1
-#define MCL_FUTURE     2
-#define MCL_ONFAULT    4
-
-void *mmap (void *start, size_t len, int prot, int flags, int fd, off_t off);
-int munmap (void *start, size_t len);
-
-#ifdef __cplusplus
-}
-#endif
-#endif
diff --git a/components/libc/compilers/armlibc/sys/stat.h b/components/libc/compilers/armlibc/sys/stat.h
deleted file mode 100644
index ce95230e88..0000000000
--- a/components/libc/compilers/armlibc/sys/stat.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
diff --git a/components/libc/compilers/armlibc/sys/types.h b/components/libc/compilers/armlibc/sys/types.h
deleted file mode 100644
index 78fee1bb99..0000000000
--- a/components/libc/compilers/armlibc/sys/types.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2020-09-05     Meco Man     fix bugs
- * 2020-12-16     Meco Man     add useconds_t
- */
-#ifndef __TYPES_H__
-#define __TYPES_H__
-
-#include <stdint.h>
-
-typedef int32_t          clockid_t;
-typedef int32_t          key_t;         /* Used for interprocess communication. */
-typedef int32_t          pid_t;         /* Used for process IDs and process group IDs. */
-#ifndef ARCH_CPU_64BIT
-typedef signed int       ssize_t;       /* Used for a count of bytes or an error indication. */
-#else
-typedef long signed int  ssize_t;       /* Used for a count of bytes or an error indication. */
-#endif
-typedef unsigned long    useconds_t;    /* microseconds (unsigned) */
-
-#endif
diff --git a/components/libc/compilers/armlibc/sys/unistd.h b/components/libc/compilers/armlibc/sys/unistd.h
deleted file mode 100644
index 73a73a267e..0000000000
--- a/components/libc/compilers/armlibc/sys/unistd.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2020-12-16     Meco Man     add usleep
- */
-#ifndef _SYS_UNISTD_H
-#define _SYS_UNISTD_H
-
-#include <rtconfig.h>
-#include "types.h"
-
-#ifdef RT_USING_DFS
-
-#define STDIN_FILENO    0       /* standard input file descriptor */
-#define STDOUT_FILENO   1       /* standard output file descriptor */
-#define STDERR_FILENO   2       /* standard error file descriptor */
-
-#include <dfs_posix.h>
-#else
-#define _FREAD      0x0001  /* read enabled */
-#define _FWRITE     0x0002  /* write enabled */
-#define _FAPPEND    0x0008  /* append (writes guaranteed at the end) */
-#define _FMARK      0x0010  /* internal; mark during gc() */
-#define _FDEFER     0x0020  /* internal; defer for next gc pass */
-#define _FASYNC     0x0040  /* signal pgrp when data ready */
-#define _FSHLOCK    0x0080  /* BSD flock() shared lock present */
-#define _FEXLOCK    0x0100  /* BSD flock() exclusive lock present */
-#define _FCREAT     0x0200  /* open with file create */
-#define _FTRUNC     0x0400  /* open with truncation */
-#define _FEXCL      0x0800  /* error on open if file exists */
-#define _FNBIO      0x1000  /* non blocking I/O (sys5 style) */
-#define _FSYNC      0x2000  /* do all writes synchronously */
-#define _FNONBLOCK  0x4000  /* non blocking I/O (POSIX style) */
-#define _FNDELAY    _FNONBLOCK  /* non blocking I/O (4.2 style) */
-#define _FNOCTTY    0x8000  /* don't assign a ctty on this open */
-
-
-#ifndef O_RDONLY
-#define O_RDONLY    0       /* +1 == FREAD */
-#endif
-#ifndef O_WRONLY
-#define O_WRONLY    1       /* +1 == FWRITE */
-#endif
-#ifndef O_RDWR
-#define O_RDWR      2       /* +1 == FREAD|FWRITE */
-#endif
-#ifndef O_APPEND
-#define O_APPEND    _FAPPEND
-#endif
-#ifndef O_CREAT
-#define O_CREAT     _FCREAT
-#endif
-#ifndef O_TRUNC
-#define O_TRUNC     _FTRUNC
-#endif
-#ifndef O_EXCL
-#define O_EXCL      _FEXCL
-#endif
-#ifndef O_SYNC
-#define O_SYNC      _FSYNC
-#endif
-
-#endif
-
-
-int     isatty      (int fd);
-char *  ttyname     (int desc);
-
-unsigned int sleep(unsigned int seconds);
-int usleep(useconds_t usec);
-
-#endif /* _SYS_UNISTD_H */
diff --git a/components/libc/compilers/armlibc/syscalls.c b/components/libc/compilers/armlibc/syscalls.c
index 37f296fc3a..ce4c358993 100644
--- a/components/libc/compilers/armlibc/syscalls.c
+++ b/components/libc/compilers/armlibc/syscalls.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -9,7 +9,7 @@
  * 2013-11-24     aozima       fixed _sys_read()/_sys_write() issues.
  * 2014-08-03     bernard      If using msh, use system() implementation
  *                             in msh.
- * 2020-08-05     Meco Man     fixed _sys_flen() compiling-warning when 
+ * 2020-08-05     Meco Man     fixed _sys_flen() compiling-warning when
  *                             RT_USING_DFS is not defined
  * 2020-02-13     Meco Man     re-implement exit() and abort()
  * 2020-02-14     Meco Man     implement _sys_tmpnam()
@@ -256,6 +256,7 @@ void _ttywrch(int ch)
 #endif
 }
 
+/* for exit() and abort() */
 RT_WEAK void _sys_exit(int return_code)
 {
     extern void __rt_libc_exit(int status);
@@ -314,7 +315,7 @@ int system(const char *string)
 #ifdef __MICROLIB
 #include <stdio.h>
 
-int fputc(int c, FILE *f) 
+int fputc(int c, FILE *f)
 {
     char ch[2] = {0};
 
@@ -323,7 +324,7 @@ int fputc(int c, FILE *f)
     return 1;
 }
 
-int fgetc(FILE *f) 
+int fgetc(FILE *f)
 {
 #ifdef RT_USING_POSIX
     char ch;
diff --git a/components/libc/compilers/armlibc/unistd.h b/components/libc/compilers/armlibc/unistd.h
deleted file mode 100644
index 736fc219a8..0000000000
--- a/components/libc/compilers/armlibc/unistd.h
+++ /dev/null
@@ -1,10 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-#include "sys/unistd.h"
-