1 /* $NetBSD: compat_util.h,v 1.1 1995/06/24 20:16:05 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Christos Zoulas 5 * Copyright (c) 1995 Frank van der Linden 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 */ 31 32 #ifndef _COMPAT_UTIL_H_ 33 #define _COMPAT_UTIL_H_ 34 35 #include <machine/vmparam.h> 36 #include <sys/exec.h> 37 #include <sys/cdefs.h> 38 #include <sys/proc.h> 39 40 static __inline caddr_t stackgap_init __P((struct emul *)); 41 static __inline void *stackgap_alloc __P((caddr_t *, size_t)); 42 43 static __inline caddr_t 44 stackgap_init(e) 45 struct emul *e; 46 { 47 #define szsigcode ((caddr_t)(e->e_esigcode - e->e_sigcode)) 48 return STACKGAPBASE; 49 } 50 51 52 static __inline void * 53 stackgap_alloc(sgp, sz) 54 caddr_t *sgp; 55 size_t sz; 56 { 57 void *p = (void *) *sgp; 58 *sgp += ALIGN(sz); 59 return p; 60 } 61 62 int emul_find __P((struct proc *, caddr_t *, const char *, char *, 63 char **, int)); 64 65 #define CHECK_ALT_EXIST(p, sgp, root, path) \ 66 emul_find(p, sgp, root, path, &(path), 0) 67 68 #define CHECK_ALT_CREAT(p, sgp, root, path) \ 69 emul_find(p, sgp, root, path, &(path), 1) 70 71 #endif /* !_COMPAT_UTIL_H_ */ 72