ibcs2_util.h revision 14464
1 2/* 3 * Copyright (c) 1994 Christos Zoulas 4 * Copyright (c) 1995 Frank van der Linden 5 * Copyright (c) 1995 Scott Bartram 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 * from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp 31 * from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp 32 */ 33 34/* 35 * This file is pretty much the same as Christos' svr4_util.h 36 * (for now). 37 */ 38 39#ifndef _IBCS2_UTIL_H_ 40#define _IBCS2_UTIL_H_ 41 42#include <vm/vm.h> 43#include <vm/vm_param.h> 44#include <vm/pmap.h> 45#include <machine/vmparam.h> 46#include <sys/exec.h> 47#include <sys/cdefs.h> 48#include <sys/sysent.h> 49#include <sys/proc.h> 50 51#ifndef SCARG 52#define SCARG(p, x) (p)->x 53#endif 54 55static __inline caddr_t stackgap_init(void); 56static __inline void *stackgap_alloc(caddr_t *, size_t); 57 58static __inline caddr_t 59stackgap_init() 60{ 61#define szsigcode (*(curproc->p_sysent->sv_szsigcode)) 62 return (caddr_t)(((caddr_t)PS_STRINGS) - szsigcode - SPARE_USRSPACE); 63} 64 65 66static __inline void * 67stackgap_alloc(sgp, sz) 68 caddr_t *sgp; 69 size_t sz; 70{ 71 void *p = (void *) *sgp; 72 *sgp += ALIGN(sz); 73 return p; 74} 75 76#ifdef DEBUG_IBCS2 77#define DPRINTF(a) printf a; 78#else 79#define DPRINTF(a) 80#endif 81 82extern const char ibcs2_emul_path[]; 83 84int ibcs2_emul_find __P((struct proc *, caddr_t *, const char *, char *, 85 char **, int)); 86 87#define CHECKALTEXIST(p, sgp, path) \ 88 ibcs2_emul_find(p, sgp, ibcs2_emul_path, path, &(path), 0) 89 90#define CHECKALTCREAT(p, sgp, path) \ 91 ibcs2_emul_find(p, sgp, ibcs2_emul_path, path, &(path), 1) 92 93#endif /* !_IBCS2_UTIL_H_ */ 94