/* BFD library support routines for the AVR architecture.
- Copyright 1999, 2000, 2002, 2006 Free Software Foundation, Inc.
+ Copyright 1999, 2000, 2002, 2005, 2006, 2007, 2008
+ 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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
/* This routine is provided two arch_infos and works out which AVR
if (a->arch != b->arch)
return NULL;
- /* Special case for ATmega[16]03 (avr:3) and ATmega83 (avr:4). */
- if ((a->mach == bfd_mach_avr3 && b->mach == bfd_mach_avr4)
- || (a->mach == bfd_mach_avr4 && b->mach == bfd_mach_avr3))
+ if (a->mach == b->mach)
+ return a;
+
+ /* avr-6 is compatible only with itself as its call convention is not
+ compatible with other avr (the mcu saves the return address on 3 bytes
+ instead of 2). */
+ if (a->mach == bfd_mach_avr6 || b->mach == bfd_mach_avr6)
return NULL;
- /* So far all newer AVR architecture cores are supersets of previous
- cores. */
- if (a->mach <= b->mach)
+ if (a->mach < bfd_mach_avr6 && b->mach < bfd_mach_avr6)
+ {
+ /* Special case for ATmega[16]03 (avr:3) and ATmega83 (avr:4). */
+ if ((a->mach == bfd_mach_avr3 && b->mach == bfd_mach_avr4)
+ || (a->mach == bfd_mach_avr4 && b->mach == bfd_mach_avr3))
+ return NULL;
+
+ if (a->mach <= b->mach)
+ return b;
+
+ if (a->mach >= b->mach)
+ return a;
+ }
+
+ if (a->mach == bfd_mach_avr2 && b->mach == bfd_mach_avr25)
+ return a;
+ if (a->mach == bfd_mach_avr25 && b->mach == bfd_mach_avr2)
+ return b;
+
+ if (a->mach == bfd_mach_avr3 && b->mach == bfd_mach_avr31)
+ return a;
+ if (a->mach == bfd_mach_avr31 && b->mach == bfd_mach_avr3)
return b;
- if (a->mach >= b->mach)
+ if (a->mach == bfd_mach_avr3 && b->mach == bfd_mach_avr35)
return a;
+ if (a->mach == bfd_mach_avr35 && b->mach == bfd_mach_avr3)
+ return b;
+
+ if (a->mach == bfd_mach_avr5 && b->mach == bfd_mach_avr51)
+ return a;
+ if (a->mach == bfd_mach_avr51 && b->mach == bfd_mach_avr5)
+ return b;
+
- /* Never reached! */
return NULL;
}
static const bfd_arch_info_type arch_info_struct[] =
{
- /* AT90S1200, ATtiny1x, ATtiny28. */
+ /* Assembler only. */
N (16, bfd_mach_avr1, "avr:1", FALSE, & arch_info_struct[1]),
- /* AT90S2xxx, AT90S4xxx, AT90S8xxx, ATtiny22. */
+ /* Classic, <= 8K. */
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]),
+ /* Classic + MOVW, <= 8K. */
+ N (16, bfd_mach_avr25, "avr:25", FALSE, & arch_info_struct[3]),
+
+ /* Classic, > 8K, <= 64K. */
+ /* TODO: addr_bits should be 16, but set to 22 for some following
+ version of GCC (from 4.3) for backward compatibility. */
+ N (22, bfd_mach_avr3, "avr:3", FALSE, & arch_info_struct[4]),
+
+ /* Classic, == 128K. */
+ N (22, bfd_mach_avr31, "avr:31", FALSE, & arch_info_struct[5]),
+
+ /* Classic + MOVW + JMP/CALL, > 8K, <= 64K. */
+ N (16, bfd_mach_avr35, "avr:35", FALSE, & arch_info_struct[6]),
- /* ATmega83, ATmega85. */
- N (16, bfd_mach_avr4, "avr:4", FALSE, & arch_info_struct[4]),
+ /* Enhanced, <= 8K. */
+ N (16, bfd_mach_avr4, "avr:4", FALSE, & arch_info_struct[7]),
- /* ATmega161, ATmega163, ATmega32, AT94K. */
- N (22, bfd_mach_avr5, "avr:5", FALSE, & arch_info_struct[5]),
+ /* Enhanced, > 8K, <= 64K. */
+ /* TODO: addr_bits should be 16, but set to 22 for some following
+ version of GCC (from 4.3) for backward compatibility. */
+ N (22, bfd_mach_avr5, "avr:5", FALSE, & arch_info_struct[8]),
+
+ /* Enhanced, == 128K. */
+ N (22, bfd_mach_avr51, "avr:51", FALSE, & arch_info_struct[9]),
- /* ATmega256x. */
+ /* 3-Byte PC. */
N (22, bfd_mach_avr6, "avr:6", FALSE, NULL)
};