1/* $NetBSD: netbsd32_exec.h,v 1.32 2014/10/24 21:07:55 christos Exp $ */
2
3/*
4 * Copyright (c) 1998, 2001 Matthew R. Green
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _NETBSD32_EXEC_H_
30#define _NETBSD32_EXEC_H_
31
32#include <compat/netbsd32/netbsd32.h>
33
34#ifdef EXEC_AOUT
35#include <sys/exec_aout.h>
36#endif
37
38/* from <sys/exec_aout.h> */
39/*
40 * Header prepended to each a.out file.
41 * only manipulate the a_midmag field via the
42 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros below.
43 */
44struct netbsd32_exec {
45 netbsd32_u_long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
46 netbsd32_u_long a_text; /* text segment size */
47 netbsd32_u_long a_data; /* initialized data size */
48 netbsd32_u_long a_bss; /* uninitialized data size */
49 netbsd32_u_long a_syms; /* symbol table size */
50 netbsd32_u_long a_entry; /* entry point */
51 netbsd32_u_long a_trsize; /* text relocation size */
52 netbsd32_u_long a_drsize; /* data relocation size */
53};
54
55extern struct emul emul_netbsd32;
56
57#ifdef EXEC_AOUT
58int netbsd32_exec_aout_prep_zmagic(struct lwp *, struct exec_package *);
59int netbsd32_exec_aout_prep_nmagic(struct lwp *, struct exec_package *);
60int netbsd32_exec_aout_prep_omagic(struct lwp *, struct exec_package *);
61int exec_netbsd32_makecmds(struct lwp *, struct exec_package *);
62#endif
63#ifdef EXEC_ELF32
64int netbsd32_elf32_probe(struct lwp *, struct exec_package *, void *,
65 char *, vaddr_t *);
66int netbsd32_elf32_probe_noteless(struct lwp *, struct exec_package *,
67 void *, char *, vaddr_t *);
68int netbsd32_elf32_copyargs(struct lwp *, struct exec_package *,
69 struct ps_strings *, char **, void *);
70#endif /* EXEC_ELF32 */
71
72static __inline int netbsd32_copyargs(struct lwp *, struct exec_package *,
73 struct ps_strings *, char **, void *);
74
75void netbsd32_setregs (struct lwp *, struct exec_package *, vaddr_t stack);
76int netbsd32_sigreturn (struct proc *, void *, register_t *);
77void netbsd32_sendsig (const ksiginfo_t *, const sigset_t *);
78
79extern char netbsd32_esigcode[], netbsd32_sigcode[];
80
81/*
82 * We need to copy out all pointers as 32-bit values.
83 */
84static __inline int
85netbsd32_copyargs(struct lwp *l, struct exec_package *pack,
86 struct ps_strings *arginfo, char **stackp, void *argp)
87{
88 u_int32_t *cpp = (u_int32_t *)*stackp;
89 netbsd32_pointer_t dp;
90 u_int32_t nullp = 0;
91 char *sp;
92 size_t len;
93 int argc = arginfo->ps_nargvstr;
94 int envc = arginfo->ps_nenvstr;
95 int error;
96
97 NETBSD32PTR32(dp, cpp +
98 1 + /* int argc */
99 argc + /* char *argv[] */
100 1 + /* \0 */
101 envc + /* char *env[] */
102 1 + /* \0 */
103 /* XXX auxinfo multiplied by ptr size? */
104 pack->ep_esch->es_arglen); /* auxinfo */
105 sp = argp;
106
107 if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0)
108 return error;
109
110 /* XXX don't copy them out, remap them! */
111 /* remember location of argv for later */
112 arginfo->ps_argvstr = (char **)(u_long)cpp;
113
114 for (; --argc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
115 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0)
116 return error;
117 if ((error = copyoutstr(sp, NETBSD32PTR64(dp),
118 ARG_MAX, &len)) != 0)
119 return error;
120 }
121 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
122 return error;
123
124 /* remember location of envp for later */
125 arginfo->ps_envstr = (char **)(u_long)cpp;
126
127 for (; --envc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
128 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0)
129 return error;
130 if ((error = copyoutstr(sp, NETBSD32PTR64(dp),
131 ARG_MAX, &len)) != 0)
132 return error;
133 }
134 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
135 return error;
136
137 *stackp = (char *)cpp;
138 return 0;
139}
140
141#endif /* !_NETBSD32_EXEC_H_ */
142