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