glibc/include/errno.h
Jakub Jelinek 0ecb606cb6 2.5-18.1
2007-07-12 18:26:36 +00:00

50 lines
1.0 KiB
C

#ifndef _ERRNO_H
#include <stdlib/errno.h>
#if defined _ERRNO_H && !defined _ISOMAC
# ifdef IS_IN_rtld
# include <dl-sysdep.h>
# endif
# if RTLD_PRIVATE_ERRNO
/* The dynamic linker uses its own private errno variable.
All access to errno inside the dynamic linker is serialized,
so a single (hidden) global variable is all it needs. */
# undef errno
# define errno rtld_errno
extern int rtld_errno attribute_hidden;
# else
# include <tls.h> /* Defines USE_TLS. */
# if USE___THREAD
# undef errno
# ifndef NOT_IN_libc
# define errno __libc_errno
# else
# define errno errno /* For #ifndef errno tests. */
# endif
extern __thread int errno attribute_tls_model_ie;
# endif
# endif /* RTLD_PRIVATE_ERRNO */
# define __set_errno(val) (errno = (val))
# ifndef __ASSEMBLER__
extern int *__errno_location (void) __THROW __attribute__ ((__const__))
# if RTLD_PRIVATE_ERRNO
attribute_hidden
# endif
;
libc_hidden_proto (__errno_location)
# endif
#endif /* _ERRNO_H */
#endif /* ! _ERRNO_H */