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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
#include <debug.h>
#include <syscall.h>
#include <string.h>
#include <printf.h>
static inline uint32_t call(uint32_t a, uint32_t b, uint32_t c, uint32_t d, uint32_t ss, uint32_t dd) {
uint32_t ret;
asm volatile("int $0x40"
:"=a"(ret)
:"a"(a),"b"(b),"c"(c),"d"(d),"S"(ss),"D"(dd));
return ret;
}
void dbg_print(const char* str) {
call(SC_DBG_PRINT, (uint32_t)str, strlen(str), 0, 0, 0);
}
void dbg_printf(const char* fmt, ...) {
va_list ap;
char buffer[256];
va_start(ap, fmt);
vsnprintf(buffer, 256, fmt, ap);
va_end(ap);
dbg_print(buffer);
}
void yield() {
call(SC_YIELD, 0, 0, 0, 0, 0);
}
void exit(int code) {
call(SC_EXIT, code, 0, 0, 0, 0);
}
void usleep(int usecs) {
call(SC_USLEEP, usecs, 0, 0, 0, 0);
}
bool mmap(void* addr, size_t size, int mode) {
return call(SC_MMAP, (uint32_t)addr, size, mode, 0, 0);
}
bool mmap_file(fd_t file, size_t offset, void* addr, size_t size, int mode) {
return call(SC_MMAP_FILE, file, offset, (uint32_t)addr, size, mode);
}
bool mchmap(void* addr, int mode) {
return call(SC_MCHMAP, (uint32_t)addr, mode, 0, 0, 0);
}
bool munmap(void* addr) {
return call(SC_MUNMAP, (uint32_t)addr, 0, 0, 0, 0);
}
bool create(const char* name, int type) {
return call(SC_CREATE, (uint32_t)name, strlen(name), type, 0, 0);
}
bool delete(const char* name) {
return call(SC_CREATE, (uint32_t)name, strlen(name), 0, 0, 0);
}
bool move(const char* oldname, const char* newname) {
return call(SC_MOVE, (uint32_t)oldname, strlen(oldname), (uint32_t)newname, strlen(newname), 0);
}
bool stat(const char* name, stat_t *s) {
return call(SC_STAT, (uint32_t)name, strlen(name), (uint32_t)s, 0, 0);
}
int ioctl(const char* filename, int command, void* data) {
return call(SC_IOCTL, (uint32_t)filename, strlen(filename), command, (uint32_t)data, 0);
}
fd_t open(const char* name, int mode) {
return call(SC_OPEN, (uint32_t)name, strlen(name), mode, 0, 0);
}
void close(fd_t file) {
call(SC_CLOSE, file, 0, 0, 0, 0);
}
size_t read(fd_t file, size_t offset, size_t len, char *buf) {
return call(SC_READ, file, offset, len, (uint32_t)buf, 0);
}
size_t write(fd_t file, size_t offset, size_t len, const char* buf) {
return call(SC_WRITE, file, offset, len, (uint32_t)buf, 0);
}
bool readdir(fd_t file, dirent_t *d) {
return call(SC_READDIR, file, (uint32_t)d, 0, 0, 0);
}
bool stat_open(fd_t file, stat_t *s) {
return call(SC_STAT_OPEN, file, (uint32_t)s, 0, 0, 0);
}
int ioctl_open(fd_t file, int command, void* data) {
return call(SC_IOCTL_OPEN, file, command, (uint32_t)data, 0, 0);
}
int get_mode(fd_t file) {
return call(SC_GET_MODE, file, 0, 0, 0, 0);
}
/* vim: set ts=4 sw=4 tw=0 noet :*/
|
