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 _SYS_ASM_LINKAGE_H 28 #define _SYS_ASM_LINKAGE_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 #ifdef _ASM /* The remainder of this file is only for assembly files */ 35 36 /* 37 * make annoying differences in assembler syntax go away 38 */ 39 40 #if defined(__i386__) || defined(__amd64__) 41 42 #define ASM_ENTRY_ALIGN 16 43 44 #elif defined(__sparc64__) 45 46 /* GCC uses 32-byte function alignment for UltraSPARC CPUs. */ 47 #define ASM_ENTRY_ALIGN 32 48 49 #else 50 51 #error Unsupported architecture. 52 53 #endif 54 55 /* 56 * ENTRY provides the standard procedure entry code and an easy way to 57 * insert the calls to mcount for profiling. ENTRY_NP is identical, but 58 * never calls mcount. 59 */ 60 #define ENTRY(x) \ 61 .text; \ 62 .align ASM_ENTRY_ALIGN; \ 63 .globl x; \ 64 .type x, @function; \ 65 x: 66 67 /* 68 * ALTENTRY provides for additional entry points. 69 */ 70 #define ALTENTRY(x) \ 71 .globl x; \ 72 .type x, @function; \ 73 x: 74 75 /* 76 * SET_SIZE trails a function and set the size for the ELF symbol table. 77 */ 78 #define SET_SIZE(x) \ 79 .size x, [.-x] 80 81 #endif /* _ASM */ 82 83 #ifdef __cplusplus 84 } 85 #endif 86 87 #endif /* _IA32_SYS_ASM_LINKAGE_H */ 88