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  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2001 David E. O'Brien
    5  * Copyright (c) 1996-1997 John D. Polstra.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * $FreeBSD$
   30  */
   31 
   32 #ifndef _MACHINE_ELF_H_
   33 #define _MACHINE_ELF_H_ 1
   34 
   35 /*
   36  * EABI ELF definitions for the StrongARM architecture.
   37  * See "ARM ELF", document no. `SWS ESPC 0003 A-08' for details.
   38  */
   39 
   40 #include <sys/elf32.h>  /* Definitions common to all 32 bit architectures. */
   41 
   42 #define __ELF_WORD_SIZE 32      /* Used by <sys/elf_generic.h> */
   43 #include <sys/elf_generic.h>
   44 
   45 typedef struct {        /* Auxiliary vector entry on initial stack */
   46         int     a_type;                 /* Entry type. */
   47         union {
   48                 long    a_val;          /* Integer value. */
   49                 void    *a_ptr;         /* Address. */
   50                 void    (*a_fcn)(void); /* Function pointer (not used). */
   51         } a_un;
   52 } Elf32_Auxinfo;
   53 
   54 __ElfType(Auxinfo);
   55 
   56 #define ELF_ARCH        EM_ARM
   57 
   58 #define ELF_MACHINE_OK(x) ((x) == EM_ARM)
   59 
   60 /*
   61  * Relocation types.
   62  */
   63 
   64 #define R_ARM_COUNT     33      /* Count of defined relocation types. */
   65 
   66 /* Define "machine" characteristics */
   67 #define ELF_TARG_CLASS  ELFCLASS32
   68 #ifdef __ARMEB__
   69 #define ELF_TARG_DATA   ELFDATA2MSB
   70 #else
   71 #define ELF_TARG_DATA   ELFDATA2LSB
   72 #endif
   73 #define ELF_TARG_MACH   EM_ARM
   74 #define ELF_TARG_VER    1
   75 
   76 /* Defines specific for arm headers */
   77 #define EF_ARM_EABI_VERSION(x) (((x) & EF_ARM_EABIMASK) >> 24)
   78 #define EF_ARM_EABI_VERSION_UNKNOWN 0
   79 #define EF_ARM_EABI_FREEBSD_MIN 4
   80 
   81 #define ET_DYN_LOAD_ADDR        0x500000
   82 
   83 /* Flags passed in AT_HWCAP. */
   84 #define HWCAP_SWP               0x00000001      /* Unsupported, never set.    */
   85 #define HWCAP_HALF              0x00000002      /* Always set.                */
   86 #define HWCAP_THUMB             0x00000004
   87 #define HWCAP_26BIT             0x00000008      /* Unsupported, never set.    */
   88 #define HWCAP_FAST_MULT         0x00000010      /* Always set.                */
   89 #define HWCAP_FPA               0x00000020      /* Unsupported, never set.    */
   90 #define HWCAP_VFP               0x00000040
   91 #define HWCAP_EDSP              0x00000080      /* Always set for ARMv6+.     */
   92 #define HWCAP_JAVA              0x00000100      /* Unsupported, never set.    */
   93 #define HWCAP_IWMMXT            0x00000200      /* Unsupported, never set.    */
   94 #define HWCAP_CRUNCH            0x00000400      /* Unsupported, never set.    */
   95 #define HWCAP_THUMBEE           0x00000800
   96 #define HWCAP_NEON              0x00001000
   97 #define HWCAP_VFPv3             0x00002000
   98 #define HWCAP_VFPv3D16          0x00004000
   99 #define HWCAP_TLS               0x00008000      /* Always set for ARMv6+.     */
  100 #define HWCAP_VFPv4             0x00010000
  101 #define HWCAP_IDIVA             0x00020000
  102 #define HWCAP_IDIVT             0x00040000
  103 #define HWCAP_VFPD32            0x00080000
  104 #define HWCAP_IDIV              (HWCAP_IDIVA | HWCAP_IDIVT)
  105 #define HWCAP_LPAE              0x00100000
  106 #define HWCAP_EVTSTRM           0x00200000      /* Not implemented yet.       */
  107 
  108 /* Flags passed in AT_HWCAP2. */
  109 #define HWCAP2_AES              0x00000001
  110 #define HWCAP2_PMULL            0x00000002
  111 #define HWCAP2_SHA1             0x00000004
  112 #define HWCAP2_SHA2             0x00000008
  113 #define HWCAP2_CRC32            0x00000010
  114 
  115 #endif /* !_MACHINE_ELF_H_ */

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