diff options
Diffstat (limited to 'sys/i386/linux/linux_util.h')
-rw-r--r-- | sys/i386/linux/linux_util.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/sys/i386/linux/linux_util.h b/sys/i386/linux/linux_util.h new file mode 100644 index 0000000..46edfc5 --- /dev/null +++ b/sys/i386/linux/linux_util.h @@ -0,0 +1,92 @@ +/* + * 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 + * $Id$ + */ + +/* + * This file is pretty much the same as Christos' svr4_util.h + * (for now). + */ + +#ifndef _LINUX_UTIL_H_ +#define _LINUX_UTIL_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), sizeof(char *)) + return (caddr_t)(((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 + +extern const char linux_emul_path[]; + +int linux_emul_find __P((struct proc *, caddr_t *, const char *, char *, + char **, int)); + +#define CHECKALTEXIST(p, sgp, path) \ + linux_emul_find(p, sgp, linux_emul_path, path, &(path), 0) + +#define CHECKALTCREAT(p, sgp, path) \ + linux_emul_find(p, sgp, linux_emul_path, path, &(path), 1) + +#endif /* !_LINUX_UTIL_H_ */ |