freebsd-skq/sys/compat/freebsd32/freebsd32_util.h
peter 04289884a4 Eliminate stackgap usage for the (woefully incomplete) path translations
since it isn't needed here anymore.
Use standard open(2)/access(2) and chflags(2) syscalls now.
2003-12-23 02:48:11 +00:00

77 lines
2.5 KiB
C

/*-
* Copyright (c) 1998-1999 Andrew Gallatin
* 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
* in this position and unchanged.
* 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 withough 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.
*
* $FreeBSD$
*/
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <sys/exec.h>
#include <sys/sysent.h>
#include <sys/cdefs.h>
struct freebsd32_ps_strings {
u_int32_t ps_argvstr; /* first of 0 or more argument strings */
int ps_nargvstr; /* the number of argument strings */
u_int32_t ps_envstr; /* first of 0 or more environment strings */
int ps_nenvstr; /* the number of environment strings */
};
#if defined(__amd64__) || defined(__ia64__)
#include <compat/ia32/ia32_util.h>
#endif
#define FREEBSD32_PS_STRINGS \
(FREEBSD32_USRSTACK - sizeof(struct freebsd32_ps_strings))
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)(((caddr_t)FREEBSD32_PS_STRINGS) - szsigcode -
SPARE_USRSPACE);
#undef szsigcode
}
static __inline void *
stackgap_alloc(sgp, sz)
caddr_t *sgp;
size_t sz;
{
void *p;
p = (void *) *sgp;
*sgp += ALIGN(sz);
return p;
}