rculfqueue: LGPL-ize

[urcu.git] / urcu / arch_x86.h

diff --git a/urcu/arch_x86.h b/urcu/arch_x86.h
index c4674de0d35adfbe3eaa19560ba3a4750583fecb..aad541e90e089edcb7f962e94a0c1ae58f7f5e5c 100644 (file)
--- a/urcu/arch_x86.h
+++ b/urcu/arch_x86.h
@@ -5,13 +5,13 @@
  * arch_x86.h: trivial definitions for the x86 architecture.
  *
  * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
-*
+ *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
@@ -47,16 +47,6 @@ extern "C" {
 
 #define cpu_relax()    asm volatile("rep; nop" : : : "memory");
 
-/*
- * Serialize core instruction execution. Also acts as a compiler barrier.
- * Cannot use cpuid on PIC because it clobbers the ebx register;
- * error: PIC register 'ebx' clobbered in 'asm'
- */
-#ifndef __PIC__
-#define sync_core()                                                      \
-       asm volatile("cpuid" : : : "memory", "eax", "ebx", "ecx", "edx");
-#endif
-
 #define rdtscll(val)                                                     \
        do {                                                              \
             unsigned int __a, __d;                                       \