usr/src/cmd/sgs/rtld.4.x/elf_boot.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 1990 Sun Microsystems, Inc.
  24  */
  25
  26 #ifndef _ELF_BOOT_H
  27 #define _ELF_BOOT_H
  28
  29 #ident  "%Z%%M% %I%     %E% SMI"
  30
  31 /*
  32  * Attribute/value structures used to bootstrap ELF-based dynamic linker.
  33  */
  34
  35 #ifndef _ASM
  36 typedef struct {
  37         Elf32_Sword eb_tag;             /* what this one is */
  38         union {                         /* possible values */
  39                 Elf32_Word eb_val;
  40                 Elf32_Addr eb_ptr;
  41                 Elf32_Off  eb_off;
  42         } eb_un;
  43 } Elf32_Boot;
  44 #endif  /* _ASM */
  45
  46 /*
  47  * Attributes
  48  */
  49 #define EB_NULL         0               /* (void) last entry */
  50 #define EB_DYNAMIC      1               /* (*) dynamic structure of subject */
  51 #define EB_LDSO_BASE    2               /* (caddr_t) base address of ld.so */
  52 #define EB_ARGV         3               /* (caddr_t) argument vector */
  53 #define EB_ENVP         4               /* (char **) environment strings */
  54 #define EB_AUXV         5               /* (auxv_t *) auxiliary vector */
  55 #define EB_DEVZERO      6               /* (int) fd for /dev/zero */
  56 #define EB_PAGESIZE     7               /* (int) page size */
  57 #define EB_MAX          8               /* number of "EBs" */
  58
  59 #endif  /* _ELF_BOOT_H */