1 | #ifndef _ERRNO_H |
2 | |
3 | #include <stdlib/errno.h> |
4 | |
5 | #if defined _ERRNO_H && !defined _ISOMAC && !defined __cplusplus |
6 | |
7 | # if IS_IN (rtld) |
8 | # include <dl-sysdep.h> |
9 | # ifndef RTLD_PRIVATE_ERRNO |
10 | # error "dl-sysdep.h must define RTLD_PRIVATE_ERRNO!" |
11 | # endif |
12 | # else |
13 | # define RTLD_PRIVATE_ERRNO 0 |
14 | # endif |
15 | |
16 | # if RTLD_PRIVATE_ERRNO |
17 | /* The dynamic linker uses its own private errno variable. |
18 | All access to errno inside the dynamic linker is serialized, |
19 | so a single (hidden) global variable is all it needs. */ |
20 | |
21 | # undef errno |
22 | # define errno rtld_errno |
23 | extern int rtld_errno attribute_hidden; |
24 | |
25 | # elif IS_IN_LIB |
26 | |
27 | # include <tls.h> |
28 | |
29 | # undef errno |
30 | # if IS_IN (libc) |
31 | # define errno __libc_errno |
32 | # else |
33 | # define errno errno /* For #ifndef errno tests. */ |
34 | # endif |
35 | extern __thread int errno attribute_tls_model_ie; |
36 | |
37 | # endif /* IS_IN_LIB */ |
38 | |
39 | # define __set_errno(val) (errno = (val)) |
40 | |
41 | # ifndef __ASSEMBLER__ |
42 | extern int *__errno_location (void) __THROW __attribute__ ((__const__)) |
43 | # if RTLD_PRIVATE_ERRNO |
44 | attribute_hidden |
45 | # endif |
46 | ; |
47 | libc_hidden_proto (__errno_location) |
48 | # endif |
49 | |
50 | #endif /* _ERRNO_H */ |
51 | |
52 | #endif /* ! _ERRNO_H */ |
53 | |