kernel - Optimize the x86-64 lwbuf API
[dragonfly.git] / sys / sys / imgact.h
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1/*-
2 * Copyright (c) 1993, David Greenman
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * $FreeBSD: src/sys/sys/imgact.h,v 1.22.2.2 2001/12/22 01:21:44 jwd Exp $
18f40545 34 * $DragonFly: src/sys/sys/imgact.h,v 1.6 2004/04/11 00:10:34 dillon Exp $
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35 */
36
37#ifndef _SYS_IMGACT_H_
38#define _SYS_IMGACT_H_
39
246693ac 40#include <sys/mount.h>
7a683a24 41#include <cpu/lwbuf.h>
246693ac 42
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43#define MAXSHELLCMDLEN 128
44
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45struct image_args {
46 char *buf; /* pointer to string buffer */
47 char *begin_argv; /* beginning of argv in buf */
48 char *begin_envv; /* beginning of envv in buf */
49 char *endp; /* current `end' pointer of arg & env strings */
50 char *fname; /* beginning of file name */
51 int space; /* space left in arg & env buffer */
52 int argc; /* count of argument strings */
53 int envc; /* count of environment strings */
54};
55
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56struct image_params {
57 struct proc *proc; /* our process struct */
2bd9d75c 58 struct image_args *args; /* syscall arguments */
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59 struct vnode *vp; /* pointer to vnode of file to exec */
60 struct vattr *attr; /* attributes of file */
61 const char *image_header; /* head of file to exec */
984263bc 62 unsigned long entry_addr; /* entry address of target executable */
29802dbb 63 char resident; /* flag - resident image */
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64 char vmspace_destroyed; /* flag - we've blown away original vm space */
65 char interpreted; /* flag - this executable is interpreted */
66 char interpreter_name[MAXSHELLCMDLEN]; /* name of the interpreter */
67 void *auxargs; /* ELF Auxinfo structure pointer */
5c5185ae 68 struct lwbuf *firstpage; /* first page that we mapped */
7a683a24 69 struct lwbuf firstpage_cache;
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70 unsigned long ps_strings; /* PS_STRINGS for BSD/OS binaries */
71};
72
73#ifdef _KERNEL
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74enum exec_path_segflg {PATH_SYSSPACE, PATH_USERSPACE};
75
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76struct vmspace;
77int exec_resident_imgact (struct image_params *);
246693ac 78int exec_check_permissions (struct image_params *, struct mount *);
29802dbb 79int exec_new_vmspace (struct image_params *, struct vmspace *vmres);
b153f746 80int exec_shell_imgact (struct image_params *);
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81int exec_copyin_args(struct image_args *, char *, enum exec_path_segflg,
82 char **, char **);
83void exec_free_args(struct image_args *);
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84#endif
85
86#endif /* !_SYS_IMGACT_H_ */