include/coff/i860.h

   1 /* COFF information for the Intel i860.
   2
   3    Copyright (C) 2001-2017 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  18    MA 02110-1301, USA.  */
  19
  20 /* This file was hacked from i386.h   [dolan@ssd.intel.com] */
  21
  22 #define L_LNNO_SIZE 2
  23 #include "coff/external.h"
  24
  25 /* Bits for f_flags:
  26         F_RELFLG        relocation info stripped from file
  27         F_EXEC          file is executable (no unresolved external references)
  28         F_LNNO          line numbers stripped from file
  29         F_LSYMS         local symbols stripped from file
  30         F_AR32WR        file has byte ordering of an AR32WR machine (e.g. vax).  */
  31
  32 #define F_RELFLG        (0x0001)
  33 #define F_EXEC          (0x0002)
  34 #define F_LNNO          (0x0004)
  35 #define F_LSYMS         (0x0008)
  36
  37 #define I860MAGIC       0x14d
  38
  39 #define I860BADMAG(x)   ((x).f_magic != I860MAGIC)
  40
  41 #undef AOUTSZ
  42 #define AOUTSZ 36
  43
  44 /* FIXME: What are the a.out magic numbers?  */
  45
  46 #define _ETEXT  "etext"
  47
  48 /********************** RELOCATION DIRECTIVES **********************/
  49
  50 struct external_reloc
  51 {
  52   char r_vaddr[4];
  53   char r_symndx[4];
  54   char r_type[2];
  55 };
  56
  57 #define RELOC struct external_reloc
  58 #define RELSZ 10
  59
  60 /* The relocation directory entry types.
  61      PAIR   : The low half that follows relates to the preceding HIGH[ADJ].
  62      HIGH   : The high half of a 32-bit constant.
  63      LOWn   : The low half, insn bits 15..(n-1), 2^n-byte aligned.
  64      SPLITn : The low half, insn bits 20..16 and 10..(n-1), 2^n-byte aligned.
  65      HIGHADJ: Similar to HIGH, but with adjustment.
  66      BRADDR : 26-bit branch displacement.
  67
  68    Note: The Intel assembler manual lists LOW4 as one of the
  69    relocation types, but it appears to be useless for the i860.
  70    We will recognize it anyway, just in case it actually appears in
  71    any object files.  */
  72
  73 enum {
  74   COFF860_R_PAIR        = 0x1c,
  75   COFF860_R_HIGH        = 0x1e,
  76   COFF860_R_LOW0        = 0x1f,
  77   COFF860_R_LOW1        = 0x20,
  78   COFF860_R_LOW2        = 0x21,
  79   COFF860_R_LOW3        = 0x22,
  80   COFF860_R_LOW4        = 0x23,
  81   COFF860_R_SPLIT0      = 0x24,
  82   COFF860_R_SPLIT1      = 0x25,
  83   COFF860_R_SPLIT2      = 0x26,
  84   COFF860_R_HIGHADJ     = 0x27,
  85   COFF860_R_BRADDR      = 0x28
  86 };
  87