include/elf/arm.h

   1 /* ARM ELF support for BFD.
   2    Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
   3
   4    This file is part of BFD, the Binary File Descriptor library.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software Foundation,
  18    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef _ELF_ARM_H
  21 #define _ELF_ARM_H
  22
  23 #include "elf/reloc-macros.h"
  24
  25 /* Processor specific flags for the ELF header e_flags field.  */
  26 #define EF_ARM_RELEXEC     0x01
  27 #define EF_ARM_HASENTRY    0x02
  28 #define EF_INTERWORK       0x04
  29 #define EF_APCS_26         0x08
  30 #define EF_APCS_FLOAT      0x10
  31 #define EF_PIC             0x20
  32 #define EF_ALIGN8          0x40         /* 8-bit structure alignment is in use.  */
  33 #define EF_NEW_ABI         0x80
  34 #define EF_OLD_ABI         0x100
  35 #define EF_SOFT_FLOAT      0x200
  36
  37 /* Local aliases for some flags to match names used by COFF port.  */
  38 #define F_INTERWORK        EF_INTERWORK
  39 #define F_APCS26           EF_APCS_26
  40 #define F_APCS_FLOAT       EF_APCS_FLOAT
  41 #define F_PIC              EF_PIC
  42 #define F_SOFT_FLOAT       EF_SOFT_FLOAT
  43
  44 /* Additional symbol types for Thumb.  */
  45 #define STT_ARM_TFUNC      STT_LOPROC   /* A Thumb function.  */
  46 #define STT_ARM_16BIT      STT_HIPROC   /* A Thumb label.  */
  47
  48 /* ARM-specific values for sh_flags.  */
  49 #define SHF_ENTRYSECT      0x10000000   /* Section contains an entry point.  */
  50 #define SHF_COMDEF         0x80000000   /* Section may be multiply defined in the input to a link step.  */
  51
  52 /* ARM-specific program header flags.  */
  53 #define PF_ARM_SB          0x10000000   /* Segment contains the location addressed by the static base.  */
  54
  55 /* Relocation types.  */
  56 START_RELOC_NUMBERS (elf_arm_reloc_type)
  57   RELOC_NUMBER (R_ARM_NONE,         0)
  58   RELOC_NUMBER (R_ARM_PC24,         1)
  59   RELOC_NUMBER (R_ARM_ABS32,        2)
  60   RELOC_NUMBER (R_ARM_REL32,        3)
  61   RELOC_NUMBER (R_ARM_PC13,         4)
  62   RELOC_NUMBER (R_ARM_ABS16,        5)
  63   RELOC_NUMBER (R_ARM_ABS12,        6)
  64   RELOC_NUMBER (R_ARM_THM_ABS5,     7)
  65   RELOC_NUMBER (R_ARM_ABS8,         8)
  66   RELOC_NUMBER (R_ARM_SBREL32,      9)
  67   RELOC_NUMBER (R_ARM_THM_PC22,    10)
  68   RELOC_NUMBER (R_ARM_THM_PC8,     11)
  69   RELOC_NUMBER (R_ARM_AMP_VCALL9,  12)
  70   RELOC_NUMBER (R_ARM_SWI24,       13)
  71   RELOC_NUMBER (R_ARM_THM_SWI8,    14)
  72   RELOC_NUMBER (R_ARM_XPC25,       15)
  73   RELOC_NUMBER (R_ARM_THM_XPC22,   16)
  74   RELOC_NUMBER (R_ARM_COPY,        20)       /* copy symbol at runtime */
  75   RELOC_NUMBER (R_ARM_GLOB_DAT,    21)       /* create GOT entry */
  76   RELOC_NUMBER (R_ARM_JUMP_SLOT,   22)       /* create PLT entry */
  77   RELOC_NUMBER (R_ARM_RELATIVE,    23)       /* adjust by program base */
  78   RELOC_NUMBER (R_ARM_GOTOFF,      24)       /* 32 bit offset to GOT */
  79   RELOC_NUMBER (R_ARM_GOTPC,       25)       /* 32 bit PC relative offset to GOT */
  80   RELOC_NUMBER (R_ARM_GOT32,       26)       /* 32 bit GOT entry */
  81   RELOC_NUMBER (R_ARM_PLT32,       27)       /* 32 bit PLT address */
  82   FAKE_RELOC   (FIRST_INVALID_RELOC1, 28)
  83   FAKE_RELOC   (LAST_INVALID_RELOC1,  99)
  84   RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100)
  85   RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101)
  86   RELOC_NUMBER (R_ARM_THM_PC11,    102)       /* Cygnus extension to abi: Thumb unconditional branch */
  87   RELOC_NUMBER (R_ARM_THM_PC9,     103)       /* Cygnus extension to abi: Thumb conditional branch */
  88   FAKE_RELOC   (FIRST_INVALID_RELOC2, 104)
  89   FAKE_RELOC   (LAST_INVALID_RELOC2,  248)
  90   RELOC_NUMBER (R_ARM_RXPC25,     249)
  91   RELOC_NUMBER (R_ARM_RSBREL32,   250)
  92   RELOC_NUMBER (R_ARM_THM_RPC22,  251)
  93   RELOC_NUMBER (R_ARM_RREL32,     252)
  94   RELOC_NUMBER (R_ARM_RABS32,     253)
  95   RELOC_NUMBER (R_ARM_RPC24,      254)
  96   RELOC_NUMBER (R_ARM_RBASE,      255)
  97 END_RELOC_NUMBERS
  98
  99 #endif