bfd/cpu-h8300.c

   1 /* BFD library support routines for the Hitachi H8/300 architecture.
   2    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 2000, 2001, 2002
   3    Free Software Foundation, Inc.
   4    Hacked by Steve Chamberlain of 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22 #include "bfd.h"
  23 #include "sysdep.h"
  24 #include "libbfd.h"
  25
  26 static boolean h8300_scan
  27   PARAMS ((const struct bfd_arch_info *, const char *));
  28 static const bfd_arch_info_type * compatible
  29   PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
  30
  31 static boolean
  32 h8300_scan (info, string)
  33      const struct bfd_arch_info *info;
  34      const char *string;
  35 {
  36   if (*string != 'h' && *string != 'H')
  37     return false;
  38
  39   string++;
  40   if (*string != '8')
  41     return false;
  42
  43   string++;
  44   if (*string == '/')
  45     string++;
  46
  47   if (*string != '3')
  48     return false;
  49   string++;
  50   if (*string != '0')
  51     return false;
  52   string++;
  53   if (*string != '0')
  54     return false;
  55   string++;
  56   if (*string == '-')
  57     string++;
  58
  59   /* In ELF linker scripts, we typically express the architecture/machine
  60      as architecture:machine.
  61
  62      So if we've matched so far and encounter a colon, try to match the
  63      string following the colon.  */
  64   if (*string == ':')
  65     {
  66       string++;
  67       return h8300_scan (info, string);
  68     }
  69
  70   if (*string == 'h' || *string == 'H')
  71     {
  72       return (info->mach == bfd_mach_h8300h);
  73     }
  74   else if (*string == 's' || *string == 'S')
  75     {
  76       return (info->mach == bfd_mach_h8300s);
  77     }
  78   else
  79     {
  80       return info->mach == bfd_mach_h8300;
  81     }
  82 }
  83
  84 /* This routine is provided two arch_infos and works out the machine
  85    which would be compatible with both and returns a pointer to its
  86    info structure.  */
  87
  88 static const bfd_arch_info_type *
  89 compatible (in, out)
  90      const bfd_arch_info_type *in;
  91      const bfd_arch_info_type *out;
  92 {
  93   /* It's really not a good idea to mix and match modes.  */
  94   if (in->arch != out->arch || in->mach != out->mach)
  95     return 0;
  96   else
  97     return in;
  98 }
  99
 100 static const bfd_arch_info_type h8300s_info_struct =
 101 {
 102   32,                           /* 32 bits in a word */
 103   32,                           /* 32 bits in an address */
 104   8,                            /* 8 bits in a byte */
 105   bfd_arch_h8300,
 106   bfd_mach_h8300s,
 107   "h8300s",                     /* arch_name  */
 108   "h8300s",                     /* printable name */
 109   1,
 110   false,                        /* the default machine */
 111   compatible,
 112   h8300_scan,
 113   0
 114 };
 115
 116 static const bfd_arch_info_type h8300h_info_struct =
 117 {
 118   32,                           /* 32 bits in a word */
 119   32,                           /* 32 bits in an address */
 120   8,                            /* 8 bits in a byte */
 121   bfd_arch_h8300,
 122   bfd_mach_h8300h,
 123   "h8300h",                     /* arch_name  */
 124   "h8300h",                     /* printable name */
 125   1,
 126   false,                        /* the default machine */
 127   compatible,
 128   h8300_scan,
 129   &h8300s_info_struct
 130 };
 131
 132 const bfd_arch_info_type bfd_h8300_arch =
 133 {
 134   16,                           /* 16 bits in a word */
 135   16,                           /* 16 bits in an address */
 136   8,                            /* 8 bits in a byte */
 137   bfd_arch_h8300,
 138   bfd_mach_h8300,
 139   "h8300",                      /* arch_name  */
 140   "h8300",                      /* printable name */
 141   1,
 142   true,                         /* the default machine */
 143   compatible,
 144   h8300_scan,
 145   &h8300h_info_struct
 146 };