svr4_util.h revision 49267
1100966Siwasaki/* 2100966Siwasaki * Copyright (c) 1998 Mark Newton 3100966Siwasaki * Copyright (c) 1994 Christos Zoulas 4126372Snjl * All rights reserved. 5100966Siwasaki * 6100966Siwasaki * Redistribution and use in source and binary forms, with or without 7100966Siwasaki * modification, are permitted provided that the following conditions 8100966Siwasaki * are met: 9100966Siwasaki * 1. Redistributions of source code must retain the above copyright 10100966Siwasaki * notice, this list of conditions and the following disclaimer. 11100966Siwasaki * 2. Redistributions in binary form must reproduce the above copyright 12126372Snjl * notice, this list of conditions and the following disclaimer in the 13100966Siwasaki * documentation and/or other materials provided with the distribution. 14100966Siwasaki * 3. The name of the author may not be used to endorse or promote products 15100966Siwasaki * derived from this software without specific prior written permission 16100966Siwasaki * 17100966Siwasaki * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18100966Siwasaki * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19100966Siwasaki * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20100966Siwasaki * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21100966Siwasaki * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22100966Siwasaki * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23100966Siwasaki * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24100966Siwasaki * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25100966Siwasaki * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26100966Siwasaki * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27100966Siwasaki * 28100966Siwasaki * $Id$ 29100966Siwasaki */ 30100966Siwasaki 31100966Siwasaki#ifndef _SVR4_UTIL_H_ 32100966Siwasaki#define _SVR4_UTIL_H_ 33100966Siwasaki 34100966Siwasaki/*#include <compat/common/compat_util.h>*/ 35100966Siwasaki#include <vm/vm.h> 36100966Siwasaki#include <vm/vm_param.h> 37100966Siwasaki#include <vm/pmap.h> 38100966Siwasaki#include <machine/vmparam.h> 39100966Siwasaki#include <sys/exec.h> 40100966Siwasaki#include <sys/sysent.h> 41100966Siwasaki#include <sys/cdefs.h> 42100966Siwasaki 43100966Siwasaki#ifdef DEBUG_SVR4 44100966Siwasaki#define DPRINTF(a) uprintf a; 45100966Siwasaki#else 46100966Siwasaki#define DPRINTF(a) 47100966Siwasaki#endif 48100966Siwasaki 49100966Siwasaki 50100966Siwasakistatic __inline caddr_t stackgap_init(void); 51100966Siwasakistatic __inline void *stackgap_alloc(caddr_t *, size_t); 52100966Siwasaki 53100966Siwasakistatic __inline caddr_t 54100966Siwasakistackgap_init() 55100966Siwasaki{ 56100966Siwasaki#define szsigcode (*(curproc->p_sysent->sv_szsigcode)) 57100966Siwasaki return (caddr_t)(((caddr_t)PS_STRINGS) - szsigcode - SPARE_USRSPACE); 58100966Siwasaki} 59100966Siwasaki 60100966Siwasakistatic __inline void * 61100966Siwasakistackgap_alloc(sgp, sz) 62100966Siwasaki caddr_t *sgp; 63100966Siwasaki size_t sz; 64100966Siwasaki{ 65100966Siwasaki void *p = (void *) *sgp; 66100966Siwasaki *sgp += ALIGN(sz); 67100966Siwasaki return p; 68100966Siwasaki} 69100966Siwasaki 70100966Siwasakiextern const char svr4_emul_path[]; 71100966Siwasakiint svr4_emul_find __P((struct proc *, caddr_t *, const char *, char *, 72100966Siwasaki char **, int)); 73100966Siwasaki 74100966Siwasaki#define CHECKALTEXIST(p, sgp, path) \ 75100966Siwasaki svr4_emul_find(p, sgp, svr4_emul_path, path, &(path), 0) 76100966Siwasaki 77100966Siwasaki#define CHECKALTCREAT(p, sgp, path) \ 78100966Siwasaki svr4_emul_find(p, sgp, svr4_emul_path, path, &(path), 1) 79100966Siwasaki 80100966Siwasaki#endif /* !_SVR4_UTIL_H_ */ 81100966Siwasaki