diff options
Diffstat (limited to 'nptl/sysdeps/powerpc/tls.h')
| -rw-r--r-- | nptl/sysdeps/powerpc/tls.h | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/nptl/sysdeps/powerpc/tls.h b/nptl/sysdeps/powerpc/tls.h index ddaafe23d0..ad5698c6f8 100644 --- a/nptl/sysdeps/powerpc/tls.h +++ b/nptl/sysdeps/powerpc/tls.h @@ -1,5 +1,5 @@ /* Definition for thread-local data handling. NPTL/PowerPC version. - Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc. + Copyright (C) 2003, 2005, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -48,6 +48,9 @@ typedef union dtv # error "TLS support is required." #endif +/* Signal that TLS support is available. */ +# define USE_TLS 1 + #ifndef __ASSEMBLER__ /* Get system call information. */ @@ -180,6 +183,29 @@ 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 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 */ |