cctools/include/mach-o/arm64/reloc.h

   1 /*
   2  * Copyright (c) 2010 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 arm64 implementation.
  25  */
  26 enum reloc_type_arm64
  27 {
  28     ARM64_RELOC_UNSIGNED,         // for pointers
  29     ARM64_RELOC_SUBTRACTOR,       // must be followed by a ARM64_RELOC_UNSIGNED
  30     ARM64_RELOC_BRANCH26,         // a B/BL instruction with 26-bit displacement
  31     ARM64_RELOC_PAGE21,           // pc-rel distance to page of target
  32     ARM64_RELOC_PAGEOFF12,        // offset within page, scaled by r_length
  33     ARM64_RELOC_GOT_LOAD_PAGE21,  // pc-rel distance to page of GOT slot
  34     ARM64_RELOC_GOT_LOAD_PAGEOFF12, // offset within page of GOT slot,
  35                                     //  scaled by r_length
  36     ARM64_RELOC_POINTER_TO_GOT,   // for pointers to GOT slots
  37     ARM64_RELOC_TLVP_LOAD_PAGE21, // pc-rel distance to page of TLVP slot
  38     ARM64_RELOC_TLVP_LOAD_PAGEOFF12, // offset within page of TLVP slot,
  39                                      //  scaled by r_length
  40     ARM64_RELOC_ADDEND            // must be followed by PAGE21 or PAGEOFF12
  41 };