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
|
#include <Kernel/Syscall.h>
#include <errno.h>
#include <mman.h>
#include <stdio.h>
extern "C" {
void* mmap(void* addr, size_t size, int prot, int flags, int fd, off_t offset)
{
Syscall::SC_mmap_params params { (u32)addr, size, prot, flags, fd, offset, nullptr };
int rc = syscall(SC_mmap, ¶ms);
if (rc < 0 && -rc < EMAXERRNO) {
errno = -rc;
return (void*)-1;
}
return (void*)rc;
}
void* mmap_with_name(void* addr, size_t size, int prot, int flags, int fd, off_t offset, const char* name)
{
Syscall::SC_mmap_params params { (u32)addr, size, prot, flags, fd, offset, name };
int rc = syscall(SC_mmap, ¶ms);
if (rc < 0 && -rc < EMAXERRNO) {
errno = -rc;
return (void*)-1;
}
return (void*)rc;
}
int munmap(void* addr, size_t size)
{
int rc = syscall(SC_munmap, addr, size);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int set_mmap_name(void* addr, size_t size, const char* name)
{
int rc = syscall(SC_set_mmap_name, addr, size, name);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int shm_open(const char* name, int flags, mode_t mode)
{
int rc = syscall(SC_shm_open, name, flags, mode);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int shm_unlink(const char* name)
{
int rc = syscall(SC_unlink, name);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
}
|
