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
21extern int rtld_errno attribute_hidden;
22
23# elif IS_IN_LIB && !IS_IN (rtld) && !defined LIBC_NONSHARED
24
25#  undef  errno
26#  if IS_IN (libc)
27#   define errno __libc_errno
28#  else
29#   define errno errno		/* For #ifndef errno tests.  */
30#  endif
31extern __thread int errno attribute_tls_model_ie;
32
33# endif	/* IS_IN_LIB */
34
35# define __set_errno(val) (errno = (val))
36
37extern int *__errno_location (void) __THROW __attribute_const__
38#  if RTLD_PRIVATE_ERRNO
39     attribute_hidden
40#  endif
41;
42libc_hidden_proto (__errno_location)
43
44#endif /* !_ISOMAC && !__ASSEMBLER__ */
45#endif /* !_ERRNO_H */