1/* $NetBSD: netbsd32_exec.h,v 1.34 2019/01/27 02:08:40 pgoyette 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
55#ifdef EXEC_AOUT
56int netbsd32_exec_aout_prep_zmagic(struct lwp *, struct exec_package *);
57int netbsd32_exec_aout_prep_nmagic(struct lwp *, struct exec_package *);
58int netbsd32_exec_aout_prep_omagic(struct lwp *, struct exec_package *);
59int exec_netbsd32_makecmds(struct lwp *, struct exec_package *);
60#endif
61#ifdef EXEC_ELF32
62int netbsd32_elf32_probe(struct lwp *, struct exec_package *, void *,
63 char *, vaddr_t *);
64int netbsd32_elf32_probe_noteless(struct lwp *, struct exec_package *,
65 void *, char *, vaddr_t *);
66int netbsd32_elf32_copyargs(struct lwp *, struct exec_package *,
67 struct ps_strings *, char **, void *);
68#endif /* EXEC_ELF32 */
69
70static __inline int netbsd32_copyargs(struct lwp *, struct exec_package *,
71 struct ps_strings *, char **, void *);
72
73void netbsd32_setregs (struct lwp *, struct exec_package *, vaddr_t stack);
74int netbsd32_sigreturn (struct proc *, void *, register_t *);
75void netbsd32_sendsig (const ksiginfo_t *, const sigset_t *);
76
77extern char netbsd32_esigcode[], netbsd32_sigcode[];
78
79/*
80 * We need to copy out all pointers as 32-bit values.
81 */
82static __inline int
83netbsd32_copyargs(struct lwp *l, struct exec_package *pack,
84 struct ps_strings *arginfo, char **stackp, void *argp)
85{
86 u_int32_t *cpp = (u_int32_t *)*stackp;
87 netbsd32_pointer_t dp;
88 u_int32_t nullp = 0;
89 char *sp;
90 size_t len;
91 int argc = arginfo->ps_nargvstr;
92 int envc = arginfo->ps_nenvstr;
93 int error;
94
95 NETBSD32PTR32(dp, (char *)(cpp +
96 1 + /* int argc */
97 argc + /* char *argv[] */
98 1 + /* \0 */
99 envc + /* char *env[] */
100 1) + /* \0 */
101 pack->ep_esch->es_arglen); /* auxinfo */
102 sp = argp;
103
104 if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0)
105 return error;
106
107 /* XXX don't copy them out, remap them! */
108 /* remember location of argv for later */
109 arginfo->ps_argvstr = (char **)(u_long)cpp;
110
111 for (; --argc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
112 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0)
113 return error;
114 if ((error = copyoutstr(sp, NETBSD32PTR64(dp),
115 ARG_MAX, &len)) != 0)
116 return error;
117 }
118 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
119 return error;
120
121 /* remember location of envp for later */
122 arginfo->ps_envstr = (char **)(u_long)cpp;
123
124 for (; --envc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
125 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0)
126 return error;
127 if ((error = copyoutstr(sp, NETBSD32PTR64(dp),
128 ARG_MAX, &len)) != 0)
129 return error;
130 }
131 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
132 return error;
133
134 *stackp = (char *)cpp;
135 return 0;
136}
137
138#endif /* !_NETBSD32_EXEC_H_ */
139