mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
/*
|
|
* Copyright (c) 1994 Christos Zoulas
|
|
* Copyright (c) 1995 Frank van der Linden
|
|
* Copyright (c) 1995 Scott Bartram
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp
|
|
* from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* This file is pretty much the same as Christos' svr4_util.h
|
|
* (for now).
|
|
*/
|
|
|
|
#ifndef _LINUX_UTIL_H_
|
|
#define _LINUX_UTIL_H_
|
|
|
|
#include "opt_linux.h"
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_param.h>
|
|
#include <vm/pmap.h>
|
|
#include <machine/vmparam.h>
|
|
#include <sys/exec.h>
|
|
#include <sys/sysent.h>
|
|
#include <sys/cdefs.h>
|
|
|
|
#ifndef SCARG
|
|
#define SCARG(p, x) (p)->x
|
|
#endif
|
|
|
|
static __inline caddr_t stackgap_init(void);
|
|
static __inline void *stackgap_alloc(caddr_t *, size_t);
|
|
|
|
static __inline caddr_t
|
|
stackgap_init()
|
|
{
|
|
#define szsigcode (*(curproc->p_sysent->sv_szsigcode))
|
|
return (caddr_t)(PS_STRINGS - szsigcode - SPARE_USRSPACE);
|
|
}
|
|
|
|
|
|
static __inline void *
|
|
stackgap_alloc(sgp, sz)
|
|
caddr_t *sgp;
|
|
size_t sz;
|
|
{
|
|
void *p = (void *) *sgp;
|
|
*sgp += ALIGN(sz);
|
|
return p;
|
|
}
|
|
|
|
#ifdef DEBUG_LINUX
|
|
#define DPRINTF(a) printf a;
|
|
#else
|
|
#define DPRINTF(a)
|
|
#endif
|
|
|
|
int linux_emul_find __P((struct proc *, caddr_t *, const char *, char *,
|
|
char **, int));
|
|
|
|
#define CHECKALT(p, sgp, path, i) \
|
|
do { \
|
|
int _error; \
|
|
\
|
|
_error = linux_emul_find(p, sgp, linux_emul_path, path, \
|
|
&path, i); \
|
|
if (_error == EFAULT) \
|
|
return (_error); \
|
|
} while (0)
|
|
|
|
#define CHECKALTEXIST(p, sgp, path) CHECKALT(p, sgp, path, 0)
|
|
#define CHECKALTCREAT(p, sgp, path) CHECKALT(p, sgp, path, 1)
|
|
|
|
#endif /* !_LINUX_UTIL_H_ */
|