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linux_exec.h revision 1.21
      1 /*	$NetBSD: linux_exec.h,v 1.21 2002/04/02 20:23:44 jdolecek 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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _LINUX_EXEC_H
     40 #define _LINUX_EXEC_H
     41 
     42 #if defined(__i386__)
     43 #include <compat/linux/arch/i386/linux_exec.h>
     44 #elif defined(__m68k__)
     45 #include <compat/linux/arch/m68k/linux_exec.h>
     46 #elif defined(__alpha__)
     47 #include <compat/linux/arch/alpha/linux_exec.h>
     48 #elif defined(__powerpc__)
     49 #include <compat/linux/arch/powerpc/linux_exec.h>
     50 #elif defined(__mips__)
     51 #include <compat/linux/arch/mips/linux_exec.h>
     52 #elif defined(__arm__)
     53 #include <compat/linux/arch/arm/linux_exec.h>
     54 #endif
     55 
     56 
     57 /* Defines for a.out executables */
     58 #define LINUX_AOUT_HDR_SIZE (sizeof (struct exec))
     59 #define	LINUX_AOUT_AUX_ARGSIZ	2
     60 
     61 #define LINUX_N_MAGIC(ep)    ((ep)->a_midmag & 0xffff)
     62 #define LINUX_N_MACHTYPE(ep) (((ep)->a_midmag >> 16) & 0xff)
     63 
     64 #define LINUX_N_TXTOFF(x,m) \
     65  ((m) == ZMAGIC ? 1024 : ((m) == QMAGIC ? 0 : sizeof (struct exec)))
     66 
     67 #define LINUX_N_DATOFF(x,m) (LINUX_N_TXTOFF(x,m) + (x).a_text)
     68 
     69 #define LINUX_N_TXTADDR(x,m) ((m) == QMAGIC ? PAGE_SIZE : 0)
     70 
     71 #define LINUX__N_SEGMENT_ROUND(x) (((x) + NBPG - 1) & ~(NBPG - 1))
     72 
     73 #define LINUX__N_TXTENDADDR(x,m) (LINUX_N_TXTADDR(x,m)+(x).a_text)
     74 
     75 #define LINUX_N_DATADDR(x,m) \
     76     ((m)==OMAGIC? (LINUX__N_TXTENDADDR(x,m)) \
     77      : (LINUX__N_SEGMENT_ROUND (LINUX__N_TXTENDADDR(x,m))))
     78 
     79 #define LINUX_N_BSSADDR(x,m) (LINUX_N_DATADDR(x,m) + (x).a_data)
     80 
     81 /*
     82  * From Linux's include/linux/elf.h
     83  */
     84 #define LINUX_AT_UID		11	/* real uid */
     85 #define LINUX_AT_EUID		12	/* effective uid */
     86 #define LINUX_AT_GID		13	/* real gid */
     87 #define LINUX_AT_EGID		14	/* effective gid */
     88 #define LINUX_AT_PLATFORM	15	/* CPU string for optimizations */
     89 #define LINUX_AT_HWCAP		16	/* arch dependent CPU capabilities */
     90 #define LINUX_AT_CLKTCK		17	/* frequency times() increments */
     91 
     92 /*
     93  * Emulation specific sysctls.
     94  */
     95 #define EMUL_LINUX_KERN			1
     96 #define EMUL_LINUX_MAXID		2
     97 
     98 #define EMUL_LINUX_NAMES { \
     99 	{ 0, 0 }, \
    100 	{ "kern", CTLTYPE_NODE }, \
    101 }
    102 
    103 #define EMUL_LINUX_KERN_OSTYPE		1
    104 #define EMUL_LINUX_KERN_OSRELEASE	2
    105 #define EMUL_LINUX_KERN_VERSION		3
    106 #define EMUL_LINUX_KERN_MAXID		4
    107 
    108 #define EMUL_LINUX_KERN_NAMES { \
    109 	{ 0, 0 }, \
    110 	{ "ostype", CTLTYPE_STRING }, \
    111 	{ "osrelease", CTLTYPE_STRING }, \
    112 	{ "osversion", CTLTYPE_STRING }, \
    113 }
    114 
    115 #ifdef _KERNEL
    116 __BEGIN_DECLS
    117 extern const struct emul emul_linux;
    118 
    119 int linux_sysctl __P((int *, u_int, void *, size_t *, void *, size_t,
    120     struct proc *));
    121 void linux_setregs __P((struct proc *, struct exec_package *, u_long));
    122 int exec_linux_aout_makecmds __P((struct proc *, struct exec_package *));
    123 int linux_aout_copyargs __P((struct exec_package *, struct ps_strings *,
    124     char **, void *));
    125 void linux_trapsignal __P((struct proc *, int, u_long));
    126 
    127 #ifdef EXEC_ELF32
    128 int linux_elf32_probe __P((struct proc *, struct exec_package *, void *,
    129     char *, vaddr_t *));
    130 #endif
    131 #ifdef EXEC_ELF64
    132 int linux_elf64_probe __P((struct proc *, struct exec_package *, void *,
    133     char *, vaddr_t *));
    134 #endif
    135 __END_DECLS
    136 #endif /* !_KERNEL */
    137 
    138 #endif /* !_LINUX_EXEC_H */
    139