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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 19:01:57 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 19:01:57 +0000 |
| commit | cab56836b146bc129f1ad43f0393d95a9deca63a (patch) | |
| tree | 4f4e655319bbac78fca170da05275c127429b460 /sysdeps/mach/hurd/tls.h | |
| parent | 04ac1241a4cd004872282c2c82ec37fa33925292 (diff) | |
| parent | 82dd75a7f436a19047325d62182590c9f9e23a78 (diff) | |
Merge branch 't/tls' into refs/top-bases/t/tls-threadvar
Diffstat (limited to 'sysdeps/mach/hurd/tls.h')
| -rw-r--r-- | sysdeps/mach/hurd/tls.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/sysdeps/mach/hurd/tls.h b/sysdeps/mach/hurd/tls.h index 67ed17d00d..67c657b655 100644 --- a/sysdeps/mach/hurd/tls.h +++ b/sysdeps/mach/hurd/tls.h @@ -1,5 +1,5 @@ /* Definitions for thread-local data handling. Hurd version. - Copyright (C) 2003-2016 Free Software Foundation, Inc. + Copyright (C) 2003-2018 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 @@ -27,6 +27,7 @@ # include <sysdep.h> # include <mach/mig_errors.h> # include <mach.h> +# include <atomic.h> /* This is the size of the initial TCB. */ @@ -51,6 +52,26 @@ # define GET_DTV(descr) \ (((tcbhead_t *) (descr))->dtv) +/* Global scope switch support. */ +#define THREAD_GSCOPE_IN_TCB 0 +#define THREAD_GSCOPE_GLOBAL +#define THREAD_GSCOPE_SET_FLAG() \ + atomic_exchange_and_add_acq (&GL(dl_thread_gscope_count), 1) +#define THREAD_GSCOPE_RESET_FLAG() \ + do \ + if (atomic_exchange_and_add_rel (&GL(dl_thread_gscope_count), -1) == 1) \ + lll_wake (&GL(dl_thread_gscope_count), 0); \ + while (0) +#define THREAD_GSCOPE_WAIT() \ + do \ + { \ + int count; \ + atomic_write_barrier (); \ + while ((count = GL(dl_thread_gscope_count))) \ + lll_wait (&GL(dl_thread_gscope_count), count, 0); \ + } \ + while (0) + #endif /* !ASSEMBLER */ |