1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
#pragma once
#include <stddef.h>
#ifndef TYPES_INCLUDED
# error "please include <kernel/types.h> or <init/types.h> before this file"
#endif
typedef int handle_t;
enum {
// idc about stable syscall numbers just yet
_SYSCALL_EXIT,
_SYSCALL_AWAIT,
_SYSCALL_FORK,
_SYSCALL_OPEN,
_SYSCALL_MOUNT,
_SYSCALL_READ,
_SYSCALL_WRITE,
_SYSCALL_CLOSE,
_SYSCALL_FS_CREATE,
_SYSCALL_FS_WAIT,
};
/** Kills the current process.
* TODO: what happens to the children?
*/
_Noreturn void _syscall_exit(const char __user *msg, size_t len);
/** Waits for a child to exit, putting its exit message into *buf.
* @return the length of the message
*/
int _syscall_await(char __user *buf, int len);
/** Creates a copy of the current process, and executes it.
* All user memory pages get copied too.
* @return 0 in the child, a meaningless positive value in the parent.
*/
int _syscall_fork(void);
handle_t _syscall_open(const char __user *path, int len);
int _syscall_mount(handle_t, const char __user *path, int len);
int _syscall_read(handle_t, char __user *buf, int len);
int _syscall_write(handle_t, const char __user *buf, int len);
int _syscall_close(handle_t);
/** Creates a pair of front/back filesystem handles.
* @param back a pointer to a handle_t which will store the back pointer
*/
handle_t _syscall_fs_create(handle_t __user *back);
int _syscall_fs_wait(handle_t back, void __user *info);
|
