diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/arm/tls.h')
| -rw-r--r-- | libpthread/nptl/sysdeps/arm/tls.h | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/libpthread/nptl/sysdeps/arm/tls.h b/libpthread/nptl/sysdeps/arm/tls.h index 29200a1d2..0ca597ac8 100644 --- a/libpthread/nptl/sysdeps/arm/tls.h +++ b/libpthread/nptl/sysdeps/arm/tls.h @@ -1,5 +1,5 @@ /* Definition for thread-local data handling. NPTL/ARM version. - Copyright (C) 2005 Free Software Foundation, Inc. + Copyright (C) 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 @@ -50,9 +50,6 @@ typedef union dtv /* Signal that TLS support is available. */ #define USE_TLS 1 -/* Like all other modern NPTL ports, ARM uses forced unwinding. */ -#define HAVE_FORCED_UNWIND - #ifndef __ASSEMBLER__ /* Get system call information. */ @@ -134,6 +131,29 @@ typedef struct is not available. */ #define TLS_INIT_TP_EXPENSIVE 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, LLL_PRIVATE); \ + } \ + 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 */ |