EXTERNAL_HEADERS/mach-o/arm/reloc.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * Relocation types used in the arm implementation.  Relocation entries for
  25  * things other than instructions use the same generic relocation as discribed
  26  * in <mach-o/reloc.h> and their r_type is ARM_RELOC_VANILLA, one of the
  27  * *_SECTDIFF or the *_PB_LA_PTR types.  The rest of the relocation types are
  28  * for instructions.  Since they are for instructions the r_address field
  29  * indicates the 32 bit instruction that the relocation is to be preformed on.
  30  */
  31 enum reloc_type_arm
  32 {
  33     ARM_RELOC_VANILLA,  /* generic relocation as discribed above */
  34     ARM_RELOC_PAIR,     /* the second relocation entry of a pair */
  35     ARM_RELOC_SECTDIFF, /* a PAIR follows with subtract symbol value */
  36     ARM_RELOC_LOCAL_SECTDIFF, /* like ARM_RELOC_SECTDIFF, but the symbol
  37                                  referenced was local.  */
  38     ARM_RELOC_PB_LA_PTR,/* prebound lazy pointer */
  39     ARM_RELOC_BR24,     /* 24 bit branch displacement (to a word address) */
  40     ARM_THUMB_RELOC_BR22, /* 22 bit branch displacement (to a half-word
  41                              address) */
  42 };