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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SAVEARGS_H 27 #define _SAVEARGS_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #include <sys/types.h> 34 35 /* 36 * The longest instruction sequence in bytes before all 6 arguments are 37 * saved on the stack. This value depends on compiler implementation, 38 * therefore it should be examined periodically to guarantee accuracy. 39 */ 40 #define SAVEARGS_INSN_SEQ_LEN 256 41 42 #define SAVEARGS_NO_ARGS 0 /* no saved arguments */ 43 #define SAVEARGS_TRAD_ARGS 1 /* traditionally located arguments */ 44 #define SAVEARGS_STRUCT_ARGS 2 /* struct return addr pushed as arg0 */ 45 46 int saveargs_has_args(uint8_t *, size_t, uint_t, int); 47 48 #ifdef __cplusplus 49 } 50 #endif 51 52 #endif /* _SAVEARGS_H */ 53