|
|
|
@ -6,7 +6,7 @@ |
|
|
|
|
* |
|
|
|
|
* Copyright (c) 1994, Regents of the University of California |
|
|
|
|
* |
|
|
|
|
* $Id: ipc.h,v 1.2 1996/10/02 20:40:17 scrappy Exp $ |
|
|
|
|
* $Id: ipc.h,v 1.3 1996/10/11 03:56:27 scrappy Exp $ |
|
|
|
|
* |
|
|
|
|
* NOTES |
|
|
|
|
* This file is very architecture-specific. This stuff should actually |
|
|
|
@ -29,6 +29,9 @@ |
|
|
|
|
* Many architectures have support for user-level spinlocks (i.e., an |
|
|
|
|
* atomic test-and-set instruction). However, we have only written |
|
|
|
|
* spinlock code for the architectures listed. |
|
|
|
|
* NB: for operating systems like NetBSD (covered by BSD44_derived), |
|
|
|
|
* we may in fact have different architectures, thus make the tests |
|
|
|
|
* based on portnames somewhat misleading. |
|
|
|
|
*/ |
|
|
|
|
#if defined(PORTNAME_aix) || \ |
|
|
|
|
defined(PORTNAME_alpha) || \
|
|
|
|
@ -45,6 +48,10 @@ |
|
|
|
|
#define HAS_TEST_AND_SET |
|
|
|
|
#endif |
|
|
|
|
|
|
|
|
|
#if defined(PORTNAME_BSD44_derived) && defined(__mips__) |
|
|
|
|
#undef HAS_TEST_AND_SET |
|
|
|
|
#endif |
|
|
|
|
|
|
|
|
|
#if defined(HAS_TEST_AND_SET) |
|
|
|
|
|
|
|
|
|
#if defined(PORTNAME_aix) |
|
|
|
|