1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _ASM_CPUVAR_H 28 #define _ASM_CPUVAR_H 29 30 #include <sys/ccompile.h> 31 #include <sys/types.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #if !defined(__lint) && defined(__GNUC__) 38 39 struct cpu; 40 41 extern __GNU_INLINE struct cpu * 42 curcpup(void) 43 { 44 struct cpu *__value; 45 46 #if defined(__amd64) 47 __asm__ __volatile__( 48 "movq %%gs:0x10,%0" /* CPU_SELF */ 49 : "=r" (__value)); 50 #elif defined(__i386) 51 __asm__ __volatile__( 52 "movl %%gs:0xc,%0" /* CPU_SELF */ 53 : "=r" (__value)); 54 #else 55 #error "port me" 56 #endif 57 return (__value); 58 } 59 60 #endif /* !__lint && __GNUC__ */ 61 62 #ifdef __cplusplus 63 } 64 #endif 65 66 #endif /* _ASM_CPUVAR_H */ 67