diff options
Diffstat (limited to 'nptl/sysdeps/sparc')
| -rw-r--r-- | nptl/sysdeps/sparc/tls.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/nptl/sysdeps/sparc/tls.h b/nptl/sysdeps/sparc/tls.h index 4fbe426595..8a0c930b3e 100644 --- a/nptl/sysdeps/sparc/tls.h +++ b/nptl/sysdeps/sparc/tls.h @@ -141,6 +141,29 @@ register struct pthread *__thread_self __asm__("%g7"); # define THREAD_COPY_POINTER_GUARD(descr) \ ((descr)->header.pointer_guard = THREAD_GET_POINTER_GUARD ()) +/* 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_RESET_FLAG() \ + do \ + { int __res \ + = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \ + THREAD_GSCOPE_FLAG_UNUSED); \ + if (__res == THREAD_GSCOPE_FLAG_WAIT) \ + lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1); \ + } \ + while (0) +#define THREAD_GSCOPE_SET_FLAG() \ + do \ + { \ + THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \ + atomic_write_barrier (); \ + } \ + while (0) +#define THREAD_GSCOPE_WAIT() \ + GL(dl_wait_lookup_done) () + #endif /* !ASSEMBLER */ #endif /* tls.h */ |