diff options
Diffstat (limited to 'include/errno.h')
| -rw-r--r-- | include/errno.h | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/include/errno.h b/include/errno.h index e9add9196a..eed947fd30 100644 --- a/include/errno.h +++ b/include/errno.h @@ -4,16 +4,34 @@ #if defined _ERRNO_H && !defined _ISOMAC -# include <tls.h> /* Defines USE_TLS. */ +# 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. */ -# if USE_TLS && HAVE___THREAD && (!defined NOT_IN_libc || defined IS_IN_rtld) # undef errno # define errno errno /* For #ifndef errno tests. */ -extern __thread int errno; +extern int errno attribute_hidden; # define __set_errno(val) (errno = (val)) + # else -# define __set_errno(val) (*__errno_location ()) = (val) -# endif + +# include <tls.h> /* Defines USE_TLS. */ + +# if USE___THREAD +# undef errno +# define errno errno /* For #ifndef errno tests. */ +extern __thread int errno; +# define __set_errno(val) (errno = (val)) +# else +# define __set_errno(val) (*__errno_location ()) = (val) +# endif + +# endif /* RTLD_PRIVATE_ERRNO */ #endif /* _ERRNO_H */ |