diff options
Diffstat (limited to 'sysdeps/mach/hurd/bits/libc-lock.h')
| -rw-r--r-- | sysdeps/mach/hurd/bits/libc-lock.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/sysdeps/mach/hurd/bits/libc-lock.h b/sysdeps/mach/hurd/bits/libc-lock.h index 28c69fa0b4..cc4afb1507 100644 --- a/sysdeps/mach/hurd/bits/libc-lock.h +++ b/sysdeps/mach/hurd/bits/libc-lock.h @@ -20,8 +20,10 @@ #define _BITS_LIBC_LOCK_H 1 #if (_LIBC - 0) || (_CTHREADS_ - 0) +# if (_LIBC - 0) +# include <tls.h> +# endif #include <cthreads.h> -#include <hurd/threadvar.h> typedef struct mutex __libc_lock_t; typedef struct @@ -32,7 +34,12 @@ typedef struct } __libc_lock_recursive_t; typedef __libc_lock_recursive_t __rtld_lock_recursive_t; -#define __libc_lock_owner_self() ((void *) __hurd_threadvar_location (0)) +extern char __libc_lock_self0[0]; +/* We have to hide the __libc_lock_self access behind a function call, + otherwise gcc >= 4.9 would try to prefetch the TLS dereference even before + the __LIBC_NO_TLS test is finished... */ +extern void *__libc_get_lock_self(void); +#define __libc_lock_owner_self() (__LIBC_NO_TLS() ? &__libc_lock_self0 : __libc_get_lock_self()) #else typedef struct __libc_lock_opaque__ __libc_lock_t; @@ -203,4 +210,10 @@ void *__libc_getspecific (__libc_key_t key); #endif /* _CTHREADS_ */ +/* Hide the definitions which are only supposed to be used inside libc in + a separate file. This file is not present in the installation! */ +#ifdef _LIBC +# include <bits/libc-lockP.h> +#endif + #endif /* bits/libc-lock.h */ |