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
56
57
58
|
#define FOOLOS_MODULE_NAME "syscalls"
#include "lib/buffer/ringbuffer.h"
#include "lib/logger/log.h"
#include "lib/bool/bool.h"
#include "fs/fs.h"
#include "fs/ext2.h"
//
int syscall_write(int file, char *buf, int len)
{
// ALL output to stdout
for(int i=0;i<len;i++)
{
PutConsoleChar(buf[i],0b1111111111000000);
}
return len;
}
int syscall_read(int file, char *buf, int len)
{
// stdin
if(file==1)
{
char c;
while(1)
{
asm("cli");
bool ret=ringbuffer_get(&c);
asm("sti");
if(ret)
{
*buf=c;
if(c=='X')return 0;
return 1;
}
}
}
}
int syscall_readdir(const char *name,fs_dirent *dirs,int max)
{
return fs_readdir(name,dirs,max);
}
int syscall_execve(char *name, char **argv, char **env)
{
ext2_inode_content(EXT2_RAM_ADDRESS,name,0x800000,0x100000);
// autorun "user-space" prog
asm("push $0x800000");
asm("ret");
}
|
