FreeBSD/Linux Kernel Cross Reference
sys/compat/linux/common/linux_exec.h

     /*      $NetBSD: linux_exec.h,v 1.32 2004/03/26 15:01:16 drochner Exp $ */
     
     /*-
      * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Frank van der Linden and Eric Haszlakiewicz.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the NetBSD
     *      Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    #ifndef _LINUX_EXEC_H
    #define _LINUX_EXEC_H
    
    #if defined(__i386__)
    #include <compat/linux/arch/i386/linux_exec.h>
    #elif defined(__m68k__)
    #include <compat/linux/arch/m68k/linux_exec.h>
    #elif defined(__alpha__)
    #include <compat/linux/arch/alpha/linux_exec.h>
    #elif defined(__powerpc__)
    #include <compat/linux/arch/powerpc/linux_exec.h>
    #elif defined(__mips__)
    #include <compat/linux/arch/mips/linux_exec.h>
    #elif defined(__arm__)
    #include <compat/linux/arch/arm/linux_exec.h>
    #endif
    
    
    /* Defines for a.out executables */
    #define LINUX_AOUT_HDR_SIZE (sizeof (struct exec))
    #define LINUX_AOUT_AUX_ARGSIZ   2
    
    #define LINUX_N_MAGIC(ep)    ((ep)->a_midmag & 0xffff)
    #define LINUX_N_MACHTYPE(ep) (((ep)->a_midmag >> 16) & 0xff)
    
    #define LINUX_N_TXTOFF(x,m) \
     ((m) == ZMAGIC ? 1024 : ((m) == QMAGIC ? 0 : sizeof (struct exec)))
    
    #define LINUX_N_DATOFF(x,m) (LINUX_N_TXTOFF(x,m) + (x).a_text)
    
    #define LINUX_N_TXTADDR(x,m) ((m) == QMAGIC ? PAGE_SIZE : 0)
    
    #define LINUX__N_SEGMENT_ROUND(x) (((x) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
    
    #define LINUX__N_TXTENDADDR(x,m) (LINUX_N_TXTADDR(x,m)+(x).a_text)
    
    #define LINUX_N_DATADDR(x,m) \
        ((m)==OMAGIC? (LINUX__N_TXTENDADDR(x,m)) \
         : (LINUX__N_SEGMENT_ROUND (LINUX__N_TXTENDADDR(x,m))))
    
    #define LINUX_N_BSSADDR(x,m) (LINUX_N_DATADDR(x,m) + (x).a_data)
    
    #ifndef LINUX_MACHDEP_ELF_COPYARGS
    #define LINUX_ELF_AUX_ENTRIES   13      /* we push 13 parameters */
    #endif
    
    /* 
     * From Linux's include/linux/elf.h
     */
    #define LINUX_AT_UID            11      /* real uid */
    #define LINUX_AT_EUID           12      /* effective uid */
    #define LINUX_AT_GID            13      /* real gid */
    #define LINUX_AT_EGID           14      /* effective gid */ 
    #define LINUX_AT_PLATFORM       15      /* CPU string for optimizations */
    #define LINUX_AT_HWCAP          16      /* arch dependent CPU capabilities */
    #define LINUX_AT_CLKTCK         17      /* frequency times() increments */
    
    /*
     * Emulation specific sysctls.
     */
    #define EMUL_LINUX_KERN                 1
   #define EMUL_LINUX_MAXID                2
   
   #define EMUL_LINUX_NAMES { \
           { 0, 0 }, \
           { "kern", CTLTYPE_NODE }, \
   }
   
   #define EMUL_LINUX_KERN_OSTYPE          1
   #define EMUL_LINUX_KERN_OSRELEASE       2
   #define EMUL_LINUX_KERN_VERSION         3
   #define EMUL_LINUX_KERN_MAXID           4
   
   #define EMUL_LINUX_KERN_NAMES { \
           { 0, 0 }, \
           { "ostype", CTLTYPE_STRING }, \
           { "osrelease", CTLTYPE_STRING }, \
           { "osversion", CTLTYPE_STRING }, \
   }
   
   #ifdef _KERNEL
   __BEGIN_DECLS
   extern const struct emul emul_linux;
   
   int linux_sysctl __P((int *, u_int, void *, size_t *, void *, size_t,
       struct proc *));
   void linux_setregs __P((struct lwp *, struct exec_package *, u_long));
   int exec_linux_aout_makecmds __P((struct proc *, struct exec_package *));
   int linux_aout_copyargs __P((struct proc *, struct exec_package *,
       struct ps_strings *, char **, void *));
   void linux_trapsignal __P((struct lwp *, const ksiginfo_t *));
   
   #ifdef EXEC_ELF32
   int linux_elf32_probe __P((struct proc *, struct exec_package *, void *,
       char *, vaddr_t *));
   int linux_elf32_copyargs __P((struct proc *, struct exec_package *,
       struct ps_strings *, char **, void *));
   #endif
   #ifdef EXEC_ELF64
   int linux_elf64_probe __P((struct proc *, struct exec_package *, void *,
       char *, vaddr_t *));
   int linux_elf64_copyargs __P((struct proc *, struct exec_package *,
       struct ps_strings *, char **, void *));
   #endif
   __END_DECLS
   #endif /* !_KERNEL */
   
   #endif /* !_LINUX_EXEC_H */

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