diff options
Diffstat (limited to 'bfd/cpu-z8k.c')
| -rw-r--r-- | bfd/cpu-z8k.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/bfd/cpu-z8k.c b/bfd/cpu-z8k.c new file mode 100644 index 00000000000..5cce8eb0689 --- /dev/null +++ b/bfd/cpu-z8k.c @@ -0,0 +1,198 @@ +/* BFD library support routines for the Z800n architecture. + Copyright (C) 1992 Free Software Foundation, Inc. + Hacked by Steve Chamberlain of Cygnus Support. + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "bfd.h" +#include "sysdep.h" +#include "libbfd.h" + + +#if 0 /* not used currently */ +/* +Relocations for the Z8K + +*/ +static bfd_reloc_status_type +howto16_callback (abfd, reloc_entry, symbol_in, data, + ignore_input_section, ignore_bfd) + bfd *abfd; + arelent *reloc_entry; + struct symbol_cache_entry *symbol_in; + PTR data; + asection *ignore_input_section; + bfd *ignore_bfd; +{ + long relocation = 0; + bfd_vma addr = reloc_entry->address; + long x = bfd_get_16 (abfd, (bfd_byte *) data + addr); + + HOWTO_PREPARE (relocation, symbol_in); + + x = (x + relocation + reloc_entry->addend); + + bfd_put_16 (abfd, x, (bfd_byte *) data + addr); + return bfd_reloc_ok; +} + + +static bfd_reloc_status_type +howto8_callback (abfd, reloc_entry, symbol_in, data, + ignore_input_section, ignore_bfd) + bfd *abfd; + arelent *reloc_entry; + struct symbol_cache_entry *symbol_in; + PTR data; + asection *ignore_input_section; + bfd *ignore_bfd; +{ + long relocation = 0; + bfd_vma addr = reloc_entry->address; + long x = bfd_get_8 (abfd, (bfd_byte *) data + addr); + + HOWTO_PREPARE (relocation, symbol_in); + + x = (x + relocation + reloc_entry->addend); + + bfd_put_8 (abfd, x, (bfd_byte *) data + addr); + return bfd_reloc_ok; +} + + +static bfd_reloc_status_type +howto8_FFnn_callback (abfd, reloc_entry, symbol_in, data, + ignore_input_section, ignore_bfd) + bfd *abfd; + arelent *reloc_entry; + struct symbol_cache_entry *symbol_in; + PTR data; + asection *ignore_input_section; + bfd *ignore_bfd; +{ + long relocation = 0; + bfd_vma addr = reloc_entry->address; + + long x = bfd_get_8 (abfd, (bfd_byte *) data + addr); + abort (); + HOWTO_PREPARE (relocation, symbol_in); + + x = (x + relocation + reloc_entry->addend); + + bfd_put_8 (abfd, x, (bfd_byte *) data + addr); + return bfd_reloc_ok; +} + +static bfd_reloc_status_type +howto8_pcrel_callback (abfd, reloc_entry, symbol_in, data, + ignore_input_section, ignore_bfd) + bfd *abfd; + arelent *reloc_entry; + struct symbol_cache_entry *symbol_in; + PTR data; + asection *ignore_input_section; + bfd *ignore_bfd; +{ + long relocation = 0; + bfd_vma addr = reloc_entry->address; + long x = bfd_get_8 (abfd, (bfd_byte *) data + addr); + abort (); + HOWTO_PREPARE (relocation, symbol_in); + + x = (x + relocation + reloc_entry->addend); + + bfd_put_8 (abfd, x, (bfd_byte *) data + addr); + return bfd_reloc_ok; +} + + + +static reloc_howto_type howto_16 += NEWHOWTO (howto16_callback, "abs16", 1, false, false); +static reloc_howto_type howto_8 += NEWHOWTO (howto8_callback, "abs8", 0, false, false); + +static reloc_howto_type howto_8_FFnn += NEWHOWTO (howto8_FFnn_callback, "ff00+abs8", 0, false, false); + +static reloc_howto_type howto_8_pcrel += NEWHOWTO (howto8_pcrel_callback, "pcrel8", 0, false, true); + + +static reloc_howto_type * +local_bfd_reloc_type_lookup (arch, code) + const struct bfd_arch_info *arch; + bfd_reloc_code_real_type code; +{ + switch (code) + { + case BFD_RELOC_16: + return &howto_16; + case BFD_RELOC_8_FFnn: + return &howto_8_FFnn; + case BFD_RELOC_8: + return &howto_8; + case BFD_RELOC_8_PCREL: + return &howto_8_pcrel; + default: + return (reloc_howto_type *) NULL; + } +} +#endif + +int bfd_default_scan_num_mach (); + +static boolean +scan_mach (info, string) + const struct bfd_arch_info *info; + const char *string; +{ + if (strcmp (string, "z8001") == 0 || strcmp (string, "z8k") == 0) + { + return bfd_mach_z8001 == info->mach; + } + if (strcmp (string, "z8002") == 0) + { + return bfd_mach_z8002 == info->mach; + } + return false; +} + + +/* This routine is provided two arch_infos and returns whether + they'd be compatible */ + +static const bfd_arch_info_type * +compatible (a, b) + const bfd_arch_info_type *a; + const bfd_arch_info_type *b; +{ + if (a->arch != b->arch || a->mach != b->mach) + return NULL; + return a; +} + + +static const bfd_arch_info_type arch_info_struct[] = +{ + {32, 32, 8, bfd_arch_z8k, bfd_mach_z8001, "z8k", "z8001", 1, false, compatible, scan_mach, 0,}, +}; + +const bfd_arch_info_type bfd_z8k_arch = +{ + 32, 16, 8, bfd_arch_z8k, bfd_mach_z8002, "z8k", "z8002", 1, true, compatible, scan_mach, &arch_info_struct[0], +}; |