mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-25 05:00:01 +00:00
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/* BFD library support routines for the AVR architecture.
|
|
Copyright 1999, 2000 Free Software Foundation, Inc.
|
|
Contributed by Denis Chertykov <denisc@overta.ru>
|
|
|
|
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"
|
|
|
|
static const bfd_arch_info_type *compatible
|
|
PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
|
|
|
|
#define N(addr_bits, machine, print, default, next) \
|
|
{ \
|
|
8, /* 8 bits in a word */ \
|
|
addr_bits, /* bits in an address */ \
|
|
8, /* 8 bits in a byte */ \
|
|
bfd_arch_avr, \
|
|
machine, /* machine */ \
|
|
"avr", /* arch_name */ \
|
|
print, /* printable name */ \
|
|
1, /* section align power */ \
|
|
default, /* the default machine */ \
|
|
compatible, \
|
|
bfd_default_scan, \
|
|
next \
|
|
}
|
|
|
|
static const bfd_arch_info_type arch_info_struct[] =
|
|
{
|
|
/* AT90S1200, ATtiny1x, ATtiny28 */
|
|
N (16, bfd_mach_avr1, "avr:1", false, & arch_info_struct[1]),
|
|
|
|
/* AT90S2xxx, AT90S4xxx, AT90S8xxx, ATtiny22 */
|
|
N (16, bfd_mach_avr2, "avr:2", false, & arch_info_struct[2]),
|
|
|
|
/* ATmega103, ATmega603 */
|
|
N (22, bfd_mach_avr3, "avr:3", false, & arch_info_struct[3]),
|
|
|
|
/* ATmega83, ATmega85 */
|
|
N (16, bfd_mach_avr4, "avr:4", false, & arch_info_struct[4]),
|
|
|
|
/* ATmega161, ATmega163, ATmega32, AT94K */
|
|
N (22, bfd_mach_avr5, "avr:5", false, NULL)
|
|
};
|
|
|
|
const bfd_arch_info_type bfd_avr_arch =
|
|
N (16, bfd_mach_avr2, "avr", true, & arch_info_struct[0]);
|
|
|
|
/* This routine is provided two arch_infos and works out which AVR
|
|
machine which would be compatible with both and returns a pointer
|
|
to its info structure. */
|
|
|
|
static const bfd_arch_info_type *
|
|
compatible (a,b)
|
|
const bfd_arch_info_type * a;
|
|
const bfd_arch_info_type * b;
|
|
{
|
|
/* If a & b are for different architectures we can do nothing. */
|
|
if (a->arch != b->arch)
|
|
return NULL;
|
|
|
|
/* Special case for ATmega[16]03 (avr:3) and ATmega83 (avr:4). */
|
|
if ((a->mach == 3 && b->mach == 4)
|
|
|| (a->mach == 4 && b->mach == 3))
|
|
return NULL;
|
|
|
|
/* So far all newer AVR architecture cores are supersets of previous
|
|
cores. */
|
|
if (a->mach <= b->mach)
|
|
return b;
|
|
|
|
if (a->mach >= b->mach)
|
|
return a;
|
|
|
|
/* Never reached! */
|
|
return NULL;
|
|
}
|