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
|
/* vi: set sw=4 ts=4: */
/*
* create_module syscall for uClibc
*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <features.h>
#define __need_size_t
#include <stddef.h>
#include <errno.h>
#include <sys/syscall.h>
#ifdef __NR_create_module
unsigned long create_module(const char *name, size_t size);
#if defined(__UCLIBC_BROKEN_CREATE_MODULE__)
# define __NR___create_module __NR_create_module
static __inline__ _syscall2(long, __create_module, const char *, name, size_t, size)
/* By checking the value of errno, we know if we have been fooled
* by the syscall2 macro making a very high address look like a
* negative, so we fix it up here. */
unsigned long create_module(const char *name, size_t size)
{
long ret = __create_module(name, size);
/* Jump through hoops to fixup error return codes */
if (ret == -1 && errno > 125) {
ret = -errno;
__set_errno(0);
}
return ret;
}
#elif defined(__UCLIBC_SLIGHTLY_BROKEN_CREATE_MODULE__)
# define __NR___create_module __NR_create_module
/* Alpha doesn't have the same problem, exactly, but a bug in older
kernels fails to clear the error flag. Clear it here explicitly. */
static __inline__ _syscall4(unsigned long, __create_module, const char *, name,
size_t, size, size_t, dummy, size_t, err)
unsigned long create_module(const char *name, size_t size)
{
return __create_module(name, size, 0, 0);
}
#else
/* Sparc, MIPS, etc don't mistake return values for errors. */
_syscall2(unsigned long, create_module, const char *, name, size_t, size)
#endif
#endif
|
