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      1 /* BFD back-end for Apollo 68000 COFF binaries.
      2    Copyright (C) 1990-2014 Free Software Foundation, Inc.
      3    By Troy Rollo (troy (at) cbme.unsw.edu.au)
      4    Based on m68k standard COFF version Written by Cygnus Support.
      5 
      6    This file is part of BFD, the Binary File Descriptor library.
      7 
      8    This program is free software; you can redistribute it and/or modify
      9    it under the terms of the GNU General Public License as published by
     10    the Free Software Foundation; either version 3 of the License, or
     11    (at your option) any later version.
     12 
     13    This program is distributed in the hope that it will be useful,
     14    but WITHOUT ANY WARRANTY; without even the implied warranty of
     15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16    GNU General Public License for more details.
     17 
     18    You should have received a copy of the GNU General Public License
     19    along with this program; if not, write to the Free Software
     20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     21    MA 02110-1301, USA.  */
     22 
     23 #include "sysdep.h"
     24 #include "bfd.h"
     25 #include "libbfd.h"
     26 #include "coff/apollo.h"
     27 #include "coff/internal.h"
     28 #include "libcoff.h"
     29 
     30 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
     31 
     32 #ifdef ONLY_DECLARE_RELOCS
     33 extern reloc_howto_type apollocoff_howto_table[];
     34 #else
     35 reloc_howto_type apollocoff_howto_table[] =
     36   {
     37     HOWTO (R_RELBYTE,	       0,  0,  	8,  FALSE, 0, complain_overflow_bitfield, 0, "8",	TRUE, 0x000000ff,0x000000ff, FALSE),
     38     HOWTO (R_RELWORD,	       0,  1, 	16, FALSE, 0, complain_overflow_bitfield, 0, "16",	TRUE, 0x0000ffff,0x0000ffff, FALSE),
     39     HOWTO (R_RELLONG,	       0,  2, 	32, FALSE, 0, complain_overflow_bitfield, 0, "32",	TRUE, 0xffffffff,0xffffffff, FALSE),
     40     HOWTO (R_PCRBYTE,	       0,  0, 	8,  TRUE,  0, complain_overflow_signed,   0, "DISP8",   TRUE, 0x000000ff,0x000000ff, FALSE),
     41     HOWTO (R_PCRWORD,	       0,  1, 	16, TRUE,  0, complain_overflow_signed,   0, "DISP16",  TRUE, 0x0000ffff,0x0000ffff, FALSE),
     42     HOWTO (R_PCRLONG,	       0,  2, 	32, TRUE,  0, complain_overflow_signed,   0, "DISP32",  TRUE, 0xffffffff,0xffffffff, FALSE),
     43     HOWTO (R_RELLONG_NEG,      0,  -2, 	32, FALSE, 0, complain_overflow_bitfield, 0, "-32",	TRUE, 0xffffffff,0xffffffff, FALSE),
     44   };
     45 #endif /* not ONLY_DECLARE_RELOCS */
     46 
     47 #ifndef BADMAG
     48 #define BADMAG(x) M68KBADMAG(x)
     49 #endif
     50 #define APOLLO_M68 1		/* Customize coffcode.h */
     51 
     52 /* Turn a howto into a reloc number.  */
     53 
     54 extern void apollo_rtype2howto (arelent *, int);
     55 extern int  apollo_howto2rtype (reloc_howto_type *);
     56 #ifndef ONLY_DECLARE_RELOCS
     57 
     58 void
     59 apollo_rtype2howto (arelent *internal, int relocentry)
     60 {
     61   switch (relocentry)
     62     {
     63     case R_RELBYTE:	internal->howto = apollocoff_howto_table + 0; break;
     64     case R_RELWORD:	internal->howto = apollocoff_howto_table + 1; break;
     65     case R_RELLONG:	internal->howto = apollocoff_howto_table + 2; break;
     66     case R_PCRBYTE:	internal->howto = apollocoff_howto_table + 3; break;
     67     case R_PCRWORD:	internal->howto = apollocoff_howto_table + 4; break;
     68     case R_PCRLONG:	internal->howto = apollocoff_howto_table + 5; break;
     69     case R_RELLONG_NEG:	internal->howto = apollocoff_howto_table + 6; break;
     70     }
     71 }
     72 
     73 int
     74 apollo_howto2rtype (reloc_howto_type *internal)
     75 {
     76   if (internal->pc_relative)
     77     {
     78       switch (internal->bitsize)
     79 	{
     80 	case 32: return R_PCRLONG;
     81 	case 16: return R_PCRWORD;
     82 	case 8: return R_PCRBYTE;
     83 	}
     84     }
     85   else
     86     {
     87       switch (internal->bitsize)
     88 	{
     89 	case 32: return R_RELLONG;
     90 	case 16: return R_RELWORD;
     91 	case 8: return R_RELBYTE;
     92 	}
     93     }
     94   return R_RELLONG;
     95 }
     96 #endif /* not ONLY_DECLARE_RELOCS */
     97 
     98 #define RTYPE2HOWTO(internal, relocentry) \
     99   apollo_rtype2howto (internal, (relocentry)->r_type)
    100 
    101 #define SELECT_RELOC(external, internal) \
    102   external.r_type = apollo_howto2rtype (internal);
    103 
    104 #define bfd_pe_print_pdata	NULL
    105 
    106 #include "coffcode.h"
    107 
    108 #ifndef TARGET_SYM
    109 #define TARGET_SYM m68k_coff_apollo_vec
    110 #endif
    111 
    112 #ifndef TARGET_NAME
    113 #define TARGET_NAME "apollo-m68k"
    114 #endif
    115 
    116 #ifdef NAMES_HAVE_UNDERSCORE
    117 CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, '_', NULL, COFF_SWAP_TABLE)
    118 #else
    119 CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL, COFF_SWAP_TABLE)
    120 #endif
    121