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| author | Andreas Jaeger <aj@suse.de> | 2000-04-11 18:41:17 +0000 |
|---|---|---|
| committer | Andreas Jaeger <aj@suse.de> | 2000-04-11 18:41:17 +0000 |
| commit | 2a086df9ddfdd925cf81b67859bab5d882a3d8fb (patch) | |
| tree | a7d9db7c0a08f57c8c8059e1494c5d1804436ba5 /linuxthreads/sysdeps/mips | |
| parent | 25728f039799790439b3aaf7f321727a0abf5192 (diff) | |
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2000-04-11 Andreas Jaeger <aj@suse.de>
* sysdeps/mips/pt-machine.h (MEMORY_BARRIER): Define.
(__compare_and_swap): Mark as modifying memory.
2000-04-11 Andreas Jaeger <aj@suse.de>
* sysdeps/mips/pt-machine.h (MEMORY_BARRIER): Define.
(__compare_and_swap): Mark as modifying memory.
Diffstat (limited to 'linuxthreads/sysdeps/mips')
| -rw-r--r-- | linuxthreads/sysdeps/mips/pt-machine.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/linuxthreads/sysdeps/mips/pt-machine.h b/linuxthreads/sysdeps/mips/pt-machine.h index 5273923080..50765b183c 100644 --- a/linuxthreads/sysdeps/mips/pt-machine.h +++ b/linuxthreads/sysdeps/mips/pt-machine.h @@ -1,8 +1,8 @@ /* Machine-dependent pthreads configuration and inline functions. - Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. - Contributed by Ralf Baechle <ralf@gnu.ai.mit.edu>. + Contributed by Ralf Baechle <ralf@gnu.org>. Based on the Alpha version by Richard Henderson <rth@tamu.edu>. The GNU C Library is free software; you can redistribute it and/or @@ -30,6 +30,9 @@ # define PT_EI extern inline #endif +/* Memory barrier. */ +#define MEMORY_BARRIER() __asm__ ("" : : : "memory") + /* Spinlock implementation; required. */ PT_EI long int @@ -84,7 +87,8 @@ __compare_and_swap (long int *p, long int oldval, long int newval) "2:\t.set\tmips0\n\t" "/* End compare & swap */" : "=&r"(ret), "=m"(*p) - : "r"(oldval), "r"(newval), "m"(*p)); + : "r"(oldval), "r"(newval), "m"(*p) + : "memory"); return ret; } |