1/* $NetBSD: linux_exec.h,v 1.51 2014/02/21 07:53:53 maxv Exp $ */
2
3/*-
4 * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Frank van der Linden and Eric Haszlakiewicz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _LINUX_EXEC_H
33#define _LINUX_EXEC_H
34
35#if defined(EXEC_AOUT)
36#include <sys/exec_aout.h>
37#endif
38
39#if defined(EXEC_ELF32) || defined(EXEC_ELF64)
40#include <sys/exec_elf.h>
41#endif
42
43#if defined(__i386__)
44#include <compat/linux/arch/i386/linux_exec.h>
45#elif defined(__m68k__)
46#include <compat/linux/arch/m68k/linux_exec.h>
47#elif defined(__alpha__)
48#include <compat/linux/arch/alpha/linux_exec.h>
49#elif defined(__powerpc__)
50#include <compat/linux/arch/powerpc/linux_exec.h>
51#elif defined(__mips__)
52#include <compat/linux/arch/mips/linux_exec.h>
53#elif defined(__arm__)
54#include <compat/linux/arch/arm/linux_exec.h>
55#elif defined(__amd64__)
56#include <compat/linux/arch/amd64/linux_exec.h>
57#endif
58
59
60/* Defines for a.out executables */
61#define LINUX_AOUT_HDR_SIZE (sizeof (struct exec))
62#define LINUX_AOUT_AUX_ARGSIZ 2
63
64#define LINUX_N_MAGIC(ep) ((ep)->a_midmag & 0xffff)
65#define LINUX_N_MACHTYPE(ep) (((ep)->a_midmag >> 16) & 0xff)
66
67#define LINUX_N_TXTOFF(x,m) \
68 ((m) == ZMAGIC ? 1024 : ((m) == QMAGIC ? 0 : sizeof (struct exec)))
69
70#define LINUX_N_DATOFF(x,m) (LINUX_N_TXTOFF(x,m) + (x).a_text)
71
72#define LINUX_N_TXTADDR(x,m) ((m) == QMAGIC ? PAGE_SIZE : 0)
73
74#define LINUX__N_SEGMENT_ROUND(x) (((x) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
75
76#define LINUX__N_TXTENDADDR(x,m) (LINUX_N_TXTADDR(x,m)+(x).a_text)
77
78#define LINUX_N_DATADDR(x,m) \
79 ((m)==OMAGIC? (LINUX__N_TXTENDADDR(x,m)) \
80 : (LINUX__N_SEGMENT_ROUND (LINUX__N_TXTENDADDR(x,m))))
81
82#define LINUX_N_BSSADDR(x,m) (LINUX_N_DATADDR(x,m) + (x).a_data)
83
84#ifndef LINUX_MACHDEP_ELF_COPYARGS
85/* Counted from linux_exec_elf32.c */
86#define LINUX_ELF_AUX_ENTRIES 14
87#endif
88
89/*
90 * From Linux's include/linux/elf.h
91 */
92#define LINUX_AT_UID 11 /* real uid */
93#define LINUX_AT_EUID 12 /* effective uid */
94#define LINUX_AT_GID 13 /* real gid */
95#define LINUX_AT_EGID 14 /* effective gid */
96#define LINUX_AT_PLATFORM 15 /* CPU string for optimizations */
97#define LINUX_AT_HWCAP 16 /* arch dependent CPU capabilities */
98#define LINUX_AT_CLKTCK 17 /* frequency times() increments */
99#define LINUX_AT_SECURE 23 /* secure mode boolean */
100#define LINUX_AT_RANDOM 25 /* address of 16 random bytes */
101#define LINUX_AT_SYSINFO 32 /* pointer to __kernel_vsyscall */
102#define LINUX_AT_SYSINFO_EHDR 33 /* pointer to ELF header */
103
104#define LINUX_RANDOM_BYTES 16 /* 16 bytes for AT_RANDOM */
105
106/*
107 * Emulation specific sysctls.
108 */
109#define EMUL_LINUX_KERN 1
110#define EMUL_LINUX_MAXID 2
111
112#define EMUL_LINUX_NAMES { \
113 { 0, 0 }, \
114 { "kern", CTLTYPE_NODE }, \
115}
116
117#define EMUL_LINUX_KERN_OSTYPE 1
118#define EMUL_LINUX_KERN_OSRELEASE 2
119#define EMUL_LINUX_KERN_VERSION 3
120#define EMUL_LINUX_KERN_MAXID 4
121
122#define EMUL_LINUX_KERN_NAMES { \
123 { 0, 0 }, \
124 { "ostype", CTLTYPE_STRING }, \
125 { "osrelease", CTLTYPE_STRING }, \
126 { "osversion", CTLTYPE_STRING }, \
127}
128
129#ifdef _KERNEL
130__BEGIN_DECLS
131extern struct emul emul_linux;
132
133int linux_sysctl(int *, u_int, void *, size_t *, void *, size_t,
134 struct lwp *);
135void linux_setregs(struct lwp *, struct exec_package *, vaddr_t);
136#ifdef EXEC_AOUT
137int exec_linux_aout_makecmds(struct lwp *, struct exec_package *);
138int linux_aout_copyargs(struct lwp *, struct exec_package *,
139 struct ps_strings *, char **, void *);
140#endif
141void linux_trapsignal(struct lwp *, ksiginfo_t *);
142int linux_usertrap(struct lwp *, vaddr_t, void *);
143int linux_lwp_setprivate(struct lwp *, void *);
144
145void linux_e_proc_exec(struct proc *, struct exec_package *);
146void linux_e_proc_fork(struct proc *, struct lwp *, int);
147void linux_e_proc_exit(struct proc *);
148void linux_e_lwp_fork(struct lwp *, struct lwp *);
149void linux_e_lwp_exit(struct lwp *);
150
151#ifdef EXEC_ELF32
152int linux_elf32_probe(struct lwp *, struct exec_package *, void *,
153 char *, vaddr_t *);
154int linux_elf32_copyargs(struct lwp *, struct exec_package *,
155 struct ps_strings *, char **, void *);
156int linux_elf32_signature(struct lwp *, struct exec_package *,
157 Elf32_Ehdr *, char *);
158#ifdef LINUX_GCC_SIGNATURE
159int linux_elf32_gcc_signature(struct lwp *l,
160 struct exec_package *, Elf32_Ehdr *);
161#endif
162#ifdef LINUX_DEBUGLINK_SIGNATURE
163int linux_elf32_debuglink_signature(struct lwp *l,
164 struct exec_package *, Elf32_Ehdr *);
165#endif
166#ifdef LINUX_ATEXIT_SIGNATURE
167int linux_elf32_atexit_signature(struct lwp *l,
168 struct exec_package *, Elf32_Ehdr *);
169#endif
170#endif
171#ifdef EXEC_ELF64
172int linux_elf64_probe(struct lwp *, struct exec_package *, void *,
173 char *, vaddr_t *);
174int linux_elf64_copyargs(struct lwp *, struct exec_package *,
175 struct ps_strings *, char **, void *);
176int linux_elf64_signature(struct lwp *, struct exec_package *,
177 Elf64_Ehdr *, char *);
178#ifdef LINUX_GCC_SIGNATURE
179int linux_elf64_gcc_signature(struct lwp *l,
180 struct exec_package *, Elf64_Ehdr *);
181#endif
182#ifdef LINUX_DEBUGLINK_SIGNATURE
183int linux_elf64_debuglink_signature(struct lwp *l,
184 struct exec_package *, Elf64_Ehdr *);
185#endif
186#ifdef LINUX_ATEXIT_SIGNATURE
187int linux_elf64_atexit_signature(struct lwp *l,
188 struct exec_package *, Elf64_Ehdr *);
189#endif
190#endif
191__END_DECLS
192#endif /* !_KERNEL */
193
194#endif /* !_LINUX_EXEC_H */
195