The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/arm/include/elf.h

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    1 /*-
    2  * Copyright (c) 2001 David E. O'Brien
    3  * Copyright (c) 1996-1997 John D. Polstra.
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  * $FreeBSD: releng/8.0/sys/arm/include/elf.h 198283 2009-10-20 13:32:28Z kib $
   28  */
   29 
   30 #ifndef _MACHINE_ELF_H_
   31 #define _MACHINE_ELF_H_ 1
   32 
   33 /*
   34  * EABI ELF definitions for the StrongARM architecture.
   35  * See "ARM ELF", document no. `SWS ESPC 0003 A-08' for details.
   36  */
   37 
   38 #include <sys/elf32.h>  /* Definitions common to all 32 bit architectures. */
   39 
   40 #define __ELF_WORD_SIZE 32      /* Used by <sys/elf_generic.h> */
   41 #include <sys/elf_generic.h>
   42 
   43 typedef struct {        /* Auxiliary vector entry on initial stack */
   44         int     a_type;                 /* Entry type. */
   45         union {
   46                 long    a_val;          /* Integer value. */
   47                 void    *a_ptr;         /* Address. */
   48                 void    (*a_fcn)(void); /* Function pointer (not used). */
   49         } a_un;
   50 } Elf32_Auxinfo;
   51 
   52 __ElfType(Auxinfo);
   53 
   54 #define ELF_ARCH        EM_ARM
   55 
   56 #define ELF_MACHINE_OK(x) ((x) == EM_ARM)
   57 
   58 /*
   59  * Relocation types.
   60  */
   61 
   62 /* Values for a_type. */
   63 #define AT_NULL         0       /* Terminates the vector. */
   64 #define AT_IGNORE       1       /* Ignored entry. */
   65 #define AT_EXECFD       2       /* File descriptor of program to load. */
   66 #define AT_PHDR         3       /* Program header of program already loaded. */
   67 #define AT_PHENT        4       /* Size of each program header entry. */
   68 #define AT_PHNUM        5       /* Number of program header entries. */
   69 #define AT_PAGESZ       6       /* Page size in bytes. */
   70 #define AT_BASE         7       /* Interpreter's base address. */
   71 #define AT_FLAGS        8       /* Flags (unused). */
   72 #define AT_ENTRY        9       /* Where interpreter should transfer control. */
   73 #define AT_NOTELF       10      /* Program is not ELF ?? */
   74 #define AT_UID          11      /* Real uid. */
   75 #define AT_EUID         12      /* Effective uid. */
   76 #define AT_GID          13      /* Real gid. */
   77 #define AT_EGID         14      /* Effective gid. */
   78 #define AT_EXECPATH     15      /* Path to the executable. */
   79 
   80 #define AT_COUNT        16      /* Count of defined aux entry types. */
   81 
   82 #define R_ARM_COUNT             33      /* Count of defined relocation types. */
   83 
   84 
   85 /* Define "machine" characteristics */
   86 #define ELF_TARG_CLASS  ELFCLASS32
   87 #ifdef __ARMEB__
   88 #define ELF_TARG_DATA   ELFDATA2MSB
   89 #else
   90 #define ELF_TARG_DATA   ELFDATA2LSB
   91 #endif
   92 #define ELF_TARG_MACH   EM_ARM
   93 #define ELF_TARG_VER    1
   94 
   95 /* 
   96  * Magic number for the elf trampoline, chosen wisely to be an immediate 
   97  * value.
   98  */
   99 #define MAGIC_TRAMP_NUMBER      0x5c000003
  100 
  101 #define ET_DYN_LOAD_ADDR 0x12000
  102 
  103 #endif /* !_MACHINE_ELF_H_ */

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