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rt-thread
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ed033053
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ed033053
编写于
11月 30, 2017
作者:
B
bernard
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
[libc] Add mmap API
上级
9a829527
变更
6
隐藏空白更改
内联
并排
Showing
6 changed file
with
382 addition
and
0 deletion
+382
-0
components/libc/compilers/armlibc/sys/mman.h
components/libc/compilers/armlibc/sys/mman.h
+72
-0
components/libc/compilers/dlib/sys/mman.h
components/libc/compilers/dlib/sys/mman.h
+72
-0
components/libc/compilers/minilibc/sys/mman.h
components/libc/compilers/minilibc/sys/mman.h
+72
-0
components/libc/compilers/newlib/sys/mman.h
components/libc/compilers/newlib/sys/mman.h
+72
-0
components/libc/mmap/SConscript
components/libc/mmap/SConscript
+13
-0
components/libc/mmap/posix_mmap.c
components/libc/mmap/posix_mmap.c
+81
-0
未找到文件。
components/libc/compilers/armlibc/sys/mman.h
0 → 100644
浏览文件 @
ed033053
/*
* File : mman.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2017, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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
components/libc/compilers/dlib/sys/mman.h
0 → 100644
浏览文件 @
ed033053
/*
* File : mman.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2017, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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
components/libc/compilers/minilibc/sys/mman.h
0 → 100644
浏览文件 @
ed033053
/*
* File : mman.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2017, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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
components/libc/compilers/newlib/sys/mman.h
0 → 100644
浏览文件 @
ed033053
/*
* File : mman.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2017, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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
components/libc/mmap/SConscript
0 → 100644
浏览文件 @
ed033053
# RT-Thread building script for component
from
building
import
*
cwd
=
GetCurrentDir
()
src
=
Glob
(
'*.c'
)
+
Glob
(
'*.cpp'
)
CPPPATH
=
[
cwd
]
group
=
DefineGroup
(
'libc'
,
src
,
depend
=
[
'RT_USING_DFS'
,
'RT_USING_POSIX_MMAP'
],
CPPPATH
=
CPPPATH
)
Return
(
'group'
)
components/libc/mmap/posix_mmap.c
0 → 100644
浏览文件 @
ed033053
/*
* File : posix_mmap.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2017, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2017/11/30 Bernard The first version.
*/
#include <stdint.h>
#include <stdio.h>
#include <rtthread.h>
#include <dfs_posix.h>
#include <sys/mman.h>
void
*
mmap
(
void
*
addr
,
size_t
length
,
int
prot
,
int
flags
,
int
fd
,
off_t
offset
)
{
uint8_t
*
mem
;
if
(
addr
)
{
mem
=
addr
;
}
else
mem
=
(
uint8_t
*
)
malloc
(
length
);
if
(
mem
)
{
off_t
cur
;
size_t
read_bytes
;
cur
=
lseek
(
fd
,
0
,
SEEK_SET
);
lseek
(
fd
,
offset
,
SEEK_SET
);
read_bytes
=
read
(
fd
,
addr
,
length
);
if
(
read_bytes
!=
length
)
{
if
(
addr
==
RT_NULL
)
{
/* read failed */
free
(
mem
);
mem
=
RT_NULL
;
}
}
lseek
(
fd
,
cur
,
SEEK_SET
);
return
mem
;
}
errno
=
ENOMEM
;
return
MAP_FAILED
;
}
int
munmap
(
void
*
addr
,
size_t
length
)
{
if
(
addr
)
{
free
(
addr
);
return
0
;
}
return
-
1
;
}
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