256 lines
6.1 KiB
C
256 lines
6.1 KiB
C
/* BFD library support routines for the Hitachi H8/300 architecture.
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Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc.
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Hacked by Steve Chamberlain of Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#if 0 /* not used currently */
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/*
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Relocations for the H8
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*/
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static bfd_reloc_status_type
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howto16_callback (abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd)
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bfd * abfd;
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arelent * reloc_entry;
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struct symbol_cache_entry *symbol_in;
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PTR data;
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asection * ignore_input_section;
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bfd * ignore_bfd;
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{
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long relocation = 0;
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bfd_vma addr = reloc_entry->address;
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long x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
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HOWTO_PREPARE (relocation, symbol_in);
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x = (x + relocation + reloc_entry->addend);
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bfd_put_16 (abfd, x, (bfd_byte *) data + addr);
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return bfd_reloc_ok;
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}
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static bfd_reloc_status_type
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howto8_callback (abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd)
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bfd * abfd;
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arelent * reloc_entry;
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struct symbol_cache_entry *symbol_in;
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PTR data;
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asection * ignore_input_section;
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bfd * ignore_bfd;
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{
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long relocation = 0;
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bfd_vma addr = reloc_entry->address;
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long x = bfd_get_8 (abfd, (bfd_byte *) data + addr);
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HOWTO_PREPARE (relocation, symbol_in);
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x = (x + relocation + reloc_entry->addend);
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bfd_put_8 (abfd, x, (bfd_byte *) data + addr);
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return bfd_reloc_ok;
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}
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static bfd_reloc_status_type
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howto8_FFnn_callback (abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd)
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bfd * abfd;
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arelent * reloc_entry;
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struct symbol_cache_entry *symbol_in;
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PTR data;
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asection * ignore_input_section;
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bfd * ignore_bfd;
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{
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long relocation = 0;
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bfd_vma addr = reloc_entry->address;
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long x = bfd_get_8 (abfd, (bfd_byte *) data + addr);
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abort ();
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HOWTO_PREPARE (relocation, symbol_in);
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x = (x + relocation + reloc_entry->addend);
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bfd_put_8 (abfd, x, (bfd_byte *) data + addr);
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return bfd_reloc_ok;
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}
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static bfd_reloc_status_type
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howto8_pcrel_callback (abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd)
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bfd * abfd;
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arelent * reloc_entry;
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struct symbol_cache_entry *symbol_in;
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PTR data;
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asection * ignore_input_section;
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bfd * ignore_bfd;
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{
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long relocation = 0;
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bfd_vma addr = reloc_entry->address;
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long x = bfd_get_8 (abfd, (bfd_byte *) data + addr);
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abort ();
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HOWTO_PREPARE (relocation, symbol_in);
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x = (x + relocation + reloc_entry->addend);
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bfd_put_8 (abfd, x, (bfd_byte *) data + addr);
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return bfd_reloc_ok;
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}
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static reloc_howto_type howto_16
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= NEWHOWTO (howto16_callback, "abs16", 1, false, false);
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static reloc_howto_type howto_8
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= NEWHOWTO (howto8_callback, "abs8", 0, false, false);
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static reloc_howto_type howto_8_FFnn
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= NEWHOWTO (howto8_FFnn_callback, "ff00+abs8", 0, false, false);
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static reloc_howto_type howto_8_pcrel
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= NEWHOWTO (howto8_pcrel_callback, "pcrel8", 0, false, true);
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static reloc_howto_type *
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local_bfd_reloc_type_lookup (arch, code)
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CONST struct bfd_arch_info *arch;
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bfd_reloc_code_real_type code;
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{
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switch (code)
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{
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case BFD_RELOC_16:
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return &howto_16;
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case BFD_RELOC_8_FFnn:
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return &howto_8_FFnn;
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case BFD_RELOC_8:
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return &howto_8;
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case BFD_RELOC_8_PCREL:
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return &howto_8_pcrel;
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default:
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return (reloc_howto_type *) NULL;
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}
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}
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#endif
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int bfd_default_scan_num_mach ();
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static boolean
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h8300_scan (info, string)
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CONST struct bfd_arch_info *info;
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CONST char *string;
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{
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if (*string != 'h' && *string != 'H')
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return false;
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string++;
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if (*string != '8')
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return false;
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string++;
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if (*string == '/')
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string++;
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if (*string != '3')
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return false;
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string++;
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if (*string != '0')
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return false;
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string++;
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if (*string != '0')
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return false;
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string++;
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if (*string == '-')
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string++;
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if (*string == 'h' || *string == 'H')
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{
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return (info->mach == bfd_mach_h8300h);
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}
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else
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{
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return info->mach == bfd_mach_h8300;
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}
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}
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/* This routine is provided two arch_infos and works out the
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machine which would be compatible with both and returns a pointer
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to its info structure */
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static CONST bfd_arch_info_type *
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compatible (in, out)
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CONST bfd_arch_info_type * in;
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CONST bfd_arch_info_type * out;
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{
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/* If the output is non-H and the input is -H, that's bad */
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if (in->mach == bfd_mach_h8300h &&
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out->mach == bfd_mach_h8300)
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return 0;
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/* If either is an -H, the answer is -H */
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if (in->mach == bfd_mach_h8300h)
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return in;
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return out;
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}
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static bfd_arch_info_type h8300_info_struct =
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{
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16, /* 16 bits in a word */
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16, /* 16 bits in an address */
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8, /* 8 bits in a byte */
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bfd_arch_h8300,
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bfd_mach_h8300,
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"H8/300", /* arch_name */
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"H8/300", /* printable name */
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1,
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true, /* the default machine */
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compatible,
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h8300_scan,
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0,
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/* local_bfd_reloc_type_lookup, */
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0,
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};
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static bfd_arch_info_type h8300h_info_struct =
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{
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32, /* 32 bits in a word */
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32, /* 32 bits in an address */
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8, /* 8 bits in a byte */
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bfd_arch_h8300,
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bfd_mach_h8300h,
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"H8/300H", /* arch_name */
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"H8/300H", /* printable name */
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1,
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false, /* the default machine */
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compatible,
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h8300_scan,
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0,
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/* local_bfd_reloc_type_lookup, */
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0,
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};
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void
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bfd_h8300_arch()
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{
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bfd_arch_linkin (&h8300_info_struct);
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bfd_arch_linkin (&h8300h_info_struct);
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}
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