diff options
Diffstat (limited to 'nptl/sysdeps/alpha/tls.h')
| -rw-r--r-- | nptl/sysdeps/alpha/tls.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/nptl/sysdeps/alpha/tls.h b/nptl/sysdeps/alpha/tls.h index be2430f676..9072e2d6fb 100644 --- a/nptl/sysdeps/alpha/tls.h +++ b/nptl/sysdeps/alpha/tls.h @@ -121,6 +121,29 @@ typedef struct #define THREAD_SETMEM_NC(descr, member, idx, value) \ descr->member[idx] = (value) +/* 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 */ |