diff options
Diffstat (limited to 'nptl/sysdeps/powerpc')
| -rw-r--r-- | nptl/sysdeps/powerpc/tls.h | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/nptl/sysdeps/powerpc/tls.h b/nptl/sysdeps/powerpc/tls.h index 136fe2a100..bd9c99e06e 100644 --- a/nptl/sysdeps/powerpc/tls.h +++ b/nptl/sysdeps/powerpc/tls.h @@ -63,11 +63,10 @@ typedef union dtv # include <nptl/descr.h> /* The stack_guard is accessed directly by GCC -fstack-protector code, - so it is a part of public ABI. The dtv, pointer_guard and gscope_flag - fields are private. */ + so it is a part of public ABI. The dtv and pointer_guard fields + are private. */ typedef struct { - int gscope_flag; uintptr_t pointer_guard; uintptr_t stack_guard; dtv_t *dtv; @@ -181,24 +180,26 @@ register void *__thread_register __asm__ ("r13"); different value to mean unset l_tls_offset. */ # define NO_TLS_OFFSET -1 -/* Get and set the global scope generation counter in the TCB head. */ +/* Get and set the global scope generation counter in struct pthread. */ #define THREAD_GSCOPE_FLAG_UNUSED 0 #define THREAD_GSCOPE_FLAG_USED 1 #define THREAD_GSCOPE_FLAG_WAIT 2 -#define THREAD_GSCOPE_GET_FLAG(descr) \ - (((tcbhead_t *) ((char *) (descr) \ - + TLS_PRE_TCB_SIZE))[-1].gscope_flag) #define THREAD_GSCOPE_RESET_FLAG() \ do \ { int __res \ - = atomic_exchange_rel (&THREAD_GSCOPE_GET_FLAG (THREAD_SELF), \ + = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \ THREAD_GSCOPE_FLAG_UNUSED); \ if (__res == THREAD_GSCOPE_FLAG_WAIT) \ - lll_futex_wake (&THREAD_GSCOPE_GET_FLAG (THREAD_SELF), 1); \ + lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1); \ } \ while (0) #define THREAD_GSCOPE_SET_FLAG() \ - (THREAD_GSCOPE_GET_FLAG (THREAD_SELF) = THREAD_GSCOPE_FLAG_USED) + do \ + { \ + THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \ + atomic_write_barrier (); \ + } \ + while (0) #define THREAD_GSCOPE_WAIT() \ GL(dl_wait_lookup_done) () |