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linux_exec.h revision 1.17 
      1 /*	$NetBSD: linux_exec.h,v 1.17 2001/09/22 21:24:16 manu 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 #else
     53 #error Undefined linux_exec.h machine type.
     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  /* string identifying CPU for optimizations */
     89   #define LINUX_AT_HWCAP  16    /* arch dependent hints at CPU capabilities */
     90   #define LINUX_AT_CLKTCK 17 /* frequency at which times() increments */
     91 
     92 #ifdef _KERNEL
     93 __BEGIN_DECLS
     94 extern const struct emul emul_linux;
     95 
     96 void linux_setregs __P((struct proc *, struct exec_package *, u_long));
     97 int exec_linux_aout_makecmds __P((struct proc *, struct exec_package *));
     98 int linux_aout_copyargs __P((struct exec_package *, struct ps_strings *,
     99     char **, void *));
    100 void linux_trapsignal __P((struct proc *, int, u_long));
    101 
    102 #ifdef EXEC_ELF32
    103 int linux_elf32_probe __P((struct proc *, struct exec_package *, void *,
    104     char *, vaddr_t *));
    105 #endif
    106 #ifdef EXEC_ELF64
    107 int linux_elf64_probe __P((struct proc *, struct exec_package *, void *,
    108     char *, vaddr_t *));
    109 #endif
    110 __END_DECLS
    111 #endif /* !_KERNEL */
    112 
    113 #endif /* !_LINUX_EXEC_H */
    114