diff options
Diffstat (limited to 'linuxthreads/sysdeps/i386/tls.h')
| -rw-r--r-- | linuxthreads/sysdeps/i386/tls.h | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/linuxthreads/sysdeps/i386/tls.h b/linuxthreads/sysdeps/i386/tls.h index 03d36de486..3e7e4c3302 100644 --- a/linuxthreads/sysdeps/i386/tls.h +++ b/linuxthreads/sysdeps/i386/tls.h @@ -122,8 +122,8 @@ typedef struct /* Code to initially initialize the thread pointer. This might need special attention since 'errno' is not yet available and if the operation can cause a failure 'errno' must not be touched. */ -# define TLS_INIT_TP(descr) \ - do { \ +# define TLS_INIT_TP(descr) \ + ({ \ void *_descr = (descr); \ tcbhead_t *head = _descr; \ int __gs; \ @@ -133,11 +133,13 @@ typedef struct head->self = _descr; \ \ __gs = TLS_SETUP_GS_SEGMENT (_descr); \ - if (__builtin_expect (__gs, 7) == -1) \ - /* Nothing else we can do. */ \ - asm ("hlt"); \ - asm ("movw %w0, %%gs" : : "q" (__gs)); \ - } while (0) + if (__builtin_expect (__gs, 7) != -1) \ + { \ + asm ("movw %w0, %%gs" : : "q" (__gs)); \ + __gs = 0; \ + } \ + __gs; \ + }) /* Return the address of the dtv for the current thread. */ |