1 /* $NetBSD: netbsd32_exec.h,v 1.37 2021/11/06 20:42:56 thorpej 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 */
44 struct 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
56 int netbsd32_exec_aout_prep_zmagic(struct lwp *, struct exec_package *);
57 int netbsd32_exec_aout_prep_nmagic(struct lwp *, struct exec_package *);
58 int netbsd32_exec_aout_prep_omagic(struct lwp *, struct exec_package *);
59 int exec_netbsd32_makecmds(struct lwp *, struct exec_package *);
60 #endif
61 #ifdef EXEC_ELF32
62 int netbsd32_elf32_probe(struct lwp *, struct exec_package *, void *,
63 char *, vaddr_t *);
64 int netbsd32_elf32_probe_noteless(struct lwp *, struct exec_package *,
65 void *, char *, vaddr_t *);
66 int netbsd32_elf32_copyargs(struct lwp *, struct exec_package *,
67 struct ps_strings *, char **, void *);
68 #endif /* EXEC_ELF32 */
69
70 static __inline int netbsd32_copyargs(struct lwp *, struct exec_package *,
71 struct ps_strings *, char **, void *);
72
73 void netbsd32_setregs(struct lwp *, struct exec_package *, vaddr_t stack);
74 int netbsd32_sigreturn(struct proc *, void *, register_t *);
75 void netbsd32_sendsig(const ksiginfo_t *, const sigset_t *);
76 void netbsd32_sendsig_siginfo(const ksiginfo_t *, const sigset_t *);
77
78 extern char netbsd32_esigcode[], netbsd32_sigcode[];
79
80 /*
81 * We need to copy out all pointers as 32-bit values.
82 */
83 static __inline int
netbsd32_copyargs(struct lwp * l,struct exec_package * pack,struct ps_strings * arginfo,char ** stackp,void * argp)84 netbsd32_copyargs(struct lwp *l, struct exec_package *pack,
85 struct ps_strings *arginfo, char **stackp, void *argp)
86 {
87 uint32_t *cpp = (uint32_t *)*stackp;
88 netbsd32_pointer_t dp;
89 uint32_t nullp = 0;
90 char *sp;
91 size_t len;
92 int argc = arginfo->ps_nargvstr;
93 int envc = arginfo->ps_nenvstr;
94 int error;
95
96 NETBSD32PTR32(dp, (char *)(cpp +
97 1 + /* int argc */
98 argc + /* char *argv[] */
99 1 + /* \0 */
100 envc + /* char *env[] */
101 1) + /* \0 */
102 pack->ep_esch->es_arglen); /* auxinfo */
103 sp = argp;
104
105 if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0)
106 return error;
107
108 /* XXX don't copy them out, remap them! */
109 /* remember location of argv for later */
110 arginfo->ps_argvstr = (char **)(u_long)cpp;
111
112 for (; --argc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
113 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0)
114 return error;
115 if ((error = copyoutstr(sp, NETBSD32PTR64(dp),
116 ARG_MAX, &len)) != 0)
117 return error;
118 }
119 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
120 return error;
121
122 /* remember location of envp for later */
123 arginfo->ps_envstr = (char **)(u_long)cpp;
124
125 for (; --envc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
126 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0)
127 return error;
128 if ((error = copyoutstr(sp, NETBSD32PTR64(dp),
129 ARG_MAX, &len)) != 0)
130 return error;
131 }
132 if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
133 return error;
134
135 *stackp = (char *)cpp;
136 return 0;
137 }
138
139 #endif /* !_NETBSD32_EXEC_H_ */
140