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https://github.com/darlinghq/darling-gdb.git
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H8/500 support
This commit is contained in:
Steve Chamberlain
parent
4e72fdc05e
commit
ff975a2c4c
@ -48,6 +48,7 @@ cache.c
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ctor.c
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coff-a29k.c
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coff-h8300.c
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coff-h8500.c
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coff-i386.c
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coff-i960.c
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coff-m68k.c
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@ -85,6 +86,7 @@ cpu-m68k.c
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cpu-mips.c
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cpu-vax.c
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cpu-h8300.c
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cpu-h8500.c
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cpu-hppa.c
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cpu-i960.c
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cpu-m88k.c
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@ -1,3 +1,9 @@
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Thu Feb 4 12:52:40 1993 Steve Chamberlain (sac@thepub.cygnus.com)
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Add support for the H8/500
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* coff-h8500.c, cpu-h8500.c, archures.c, coffcode.h, targets.c
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Thu Feb 4 12:35:02 1993 Ian Lance Taylor (ian@cygnus.com)
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* libecoff.h: New file. Defines ECOFF backend data for gdb.
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208
bfd/cpu-h8500.c
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208
bfd/cpu-h8500.c
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@ -0,0 +1,208 @@
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/* BFD library support routines for the H8/500 architecture.
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Copyright (C) 1993 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
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/*
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Relocations for the Z8K
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*/
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static bfd_reloc_status_type
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DEFUN(howto16_callback,(abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd),
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bfd *abfd AND
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arelent *reloc_entry AND
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struct symbol_cache_entry *symbol_in AND
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PTR data AND
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asection *ignore_input_section AND
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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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DEFUN(howto8_callback,(abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd),
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bfd *abfd AND
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arelent *reloc_entry AND
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struct symbol_cache_entry *symbol_in AND
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PTR data AND
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asection *ignore_input_section AND
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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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DEFUN(howto8_FFnn_callback,(abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd),
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bfd *abfd AND
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arelent *reloc_entry AND
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struct symbol_cache_entry *symbol_in AND
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PTR data AND
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asection *ignore_input_section AND
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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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DEFUN(howto8_pcrel_callback,(abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd),
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bfd *abfd AND
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arelent *reloc_entry AND
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struct symbol_cache_entry *symbol_in AND
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PTR data AND
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asection *ignore_input_section AND
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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 CONST struct reloc_howto_struct *
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DEFUN(local_bfd_reloc_type_lookup,(arch, code),
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CONST struct bfd_arch_info *arch AND
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bfd_reloc_code_real_type code)
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{
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switch (code) {
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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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}
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return (reloc_howto_type *)NULL;
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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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DEFUN(scan_mach,(info, string),
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CONST struct bfd_arch_info *info AND
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CONST char *string)
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{
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if (strcmp(string,"h8/500") == 0) return true;
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if (strcmp(string,"H8/500") == 0) return true;
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if (strcmp(string,"h8500") == 0) return true;
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if (strcmp(string,"H8500") == 0) return true;
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}
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/* This routine is provided two arch_infos and returns whether
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they'd be compatible */
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static CONST bfd_arch_info_type *
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DEFUN(compatible,(a,b),
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CONST bfd_arch_info_type *a AND
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CONST bfd_arch_info_type *b)
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{
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if (a->arch != b->arch || a->mach != b->mach)
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return NULL;
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return a;
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}
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static bfd_arch_info_type arch_info_struct[] =
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{
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16, /* 16 bits in a word */
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24, /* 24 bits in an address */
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8, /* 8 bits in a byte */
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bfd_arch_h8500,
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0, /* only 1 machine */
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"H8/500", /* arch_name */
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"H8/500", /* printable name */
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1,
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true, /* the default machine */
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bfd_default_compatible,
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scan_mach,
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0,
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0,
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};
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void
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DEFUN_VOID(bfd_h8500_arch)
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{
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bfd_arch_linkin(&arch_info_struct[0]);
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}
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@ -27,6 +27,7 @@ ChangeLog
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a29k.h
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ecoff-ext.h
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h8300.h
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h8500.h
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i386.h
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i960.h
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internal.h
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206
include/coff/h8500.h
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206
include/coff/h8500.h
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@ -0,0 +1,206 @@
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/*** coff information for Hitachi H8/500 */
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/********************** FILE HEADER **********************/
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struct external_filehdr {
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char f_magic[2]; /* magic number */
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char f_nscns[2]; /* number of sections */
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char f_timdat[4]; /* time & date stamp */
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char f_symptr[4]; /* file pointer to symtab */
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char f_nsyms[4]; /* number of symtab entries */
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char f_opthdr[2]; /* sizeof(optional hdr) */
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char f_flags[2]; /* flags */
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};
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#define H8500MAGIC 0x8500
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#define H8500BADMAG(x) (((x).f_magic!=H8500MAGIC))
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#define FILHDR struct external_filehdr
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#define FILHSZ sizeof(FILHDR)
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/********************** AOUT "OPTIONAL HEADER" **********************/
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typedef struct
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{
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char magic[2]; /* type of file */
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char vstamp[2]; /* version stamp */
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char tsize[4]; /* text size in bytes, padded to FW bdry*/
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char dsize[4]; /* initialized data " " */
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char bsize[4]; /* uninitialized data " " */
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char entry[4]; /* entry pt. */
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char text_start[4]; /* base of text used for this file */
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char data_start[4]; /* base of data used for this file */
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}
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AOUTHDR;
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#define AOUTHDRSZ (sizeof(AOUTHDR))
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#define AOUTSZ (sizeof(AOUTHDR))
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/********************** SECTION HEADER **********************/
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struct external_scnhdr {
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char s_name[8]; /* section name */
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char s_paddr[4]; /* physical address, aliased s_nlib */
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char s_vaddr[4]; /* virtual address */
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char s_size[4]; /* section size */
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char s_scnptr[4]; /* file ptr to raw data for section */
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char s_relptr[4]; /* file ptr to relocation */
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char s_lnnoptr[4]; /* file ptr to line numbers */
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char s_nreloc[2]; /* number of relocation entries */
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char s_nlnno[2]; /* number of line number entries*/
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char s_flags[4]; /* flags */
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};
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/*
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* names of "special" sections
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*/
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#define _TEXT ".text"
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#define _DATA ".data"
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#define _BSS ".bss"
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#define SCNHDR struct external_scnhdr
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#define SCNHSZ sizeof(SCNHDR)
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/********************** LINE NUMBERS **********************/
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/* 1 line number entry for every "breakpointable" source line in a section.
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* Line numbers are grouped on a per function basis; first entry in a function
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* grouping will have l_lnno = 0 and in place of physical address will be the
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* symbol table index of the function name.
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*/
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struct external_lineno {
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union {
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char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
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char l_paddr[4]; /* (physical) address of line number */
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} l_addr;
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char l_lnno[4]; /* line number */
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};
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#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno));
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#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32(abfd,val, (bfd_byte *) (ext->l_lnno));
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#define LINENO struct external_lineno
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#define LINESZ sizeof(LINENO)
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/********************** SYMBOLS **********************/
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#define E_SYMNMLEN 8 /* # characters in a symbol name */
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#define E_FILNMLEN 14 /* # characters in a file name */
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#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
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struct external_syment
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{
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union {
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char e_name[E_SYMNMLEN];
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struct {
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char e_zeroes[4];
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char e_offset[4];
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} e;
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} e;
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char e_value[4];
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char e_scnum[2];
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char e_type[2];
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char e_sclass[1];
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char e_numaux[1];
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};
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#define N_BTMASK (017)
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#define N_TMASK (060)
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#define N_BTSHFT (4)
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#define N_TSHIFT (2)
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union external_auxent {
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struct {
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char x_tagndx[4]; /* str, un, or enum tag indx */
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union {
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struct {
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char x_lnno[2]; /* declaration line number */
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char x_size[2]; /* str/union/array size */
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} x_lnsz;
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char x_fsize[4]; /* size of function */
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} x_misc;
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union {
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struct { /* if ISFCN, tag, or .bb */
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char x_lnnoptr[4]; /* ptr to fcn line # */
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char x_endndx[4]; /* entry ndx past block end */
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} x_fcn;
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struct { /* if ISARY, up to 4 dimen. */
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char x_dimen[E_DIMNUM][2];
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} x_ary;
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} x_fcnary;
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char x_tvndx[2]; /* tv index */
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} x_sym;
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union {
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char x_fname[E_FILNMLEN];
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struct {
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char x_zeroes[4];
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char x_offset[4];
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} x_n;
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} x_file;
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struct {
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char x_scnlen[4]; /* section length */
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char x_nreloc[2]; /* # relocation entries */
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char x_nlinno[2]; /* # line numbers */
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} x_scn;
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struct {
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char x_tvfill[4]; /* tv fill value */
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char x_tvlen[2]; /* length of .tv */
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char x_tvran[2][2]; /* tv range */
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} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
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};
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#define SYMENT struct external_syment
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#define SYMESZ 18
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#define AUXENT union external_auxent
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#define AUXESZ 18
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/********************** RELOCATION DIRECTIVES **********************/
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/* The external reloc has an offset field, because some of the reloc
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types on the h8 don't have room in the instruction for the entire
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offset - eg the strange jump and high page addressing modes */
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struct external_reloc {
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char r_vaddr[4];
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char r_symndx[4];
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char r_offset[4];
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char r_type[2];
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char r_stuff[2];
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};
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#define RELOC struct external_reloc
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#define RELSZ 16
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#define DEFAULT_DATA_SECTION_ALIGNMENT 4
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#define DEFAULT_BSS_SECTION_ALIGNMENT 4
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#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
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/* For new sections we havn't heard of before */
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#define DEFAULT_SECTION_ALIGNMENT 4
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