/* BFD library support routines for the AVR architecture.
- Copyright 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1999-2020 Free Software Foundation, Inc.
Contributed by Denis Chertykov <denisc@overta.ru>
-This file is part of BFD, the Binary File Descriptor library.
+ 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 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 3 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.
+ 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. */
+ 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. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
-static const bfd_arch_info_type *compatible
- PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
+/* 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 (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;
+
+ 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;
+
+ 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 == 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;
+
+ return NULL;
+}
#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 */ \
+ 8, /* Bits in a word. */ \
+ addr_bits, /* Bits in an address. */ \
+ 8, /* Bits in a byte. */ \
bfd_arch_avr, \
- machine, /* machine */ \
- "avr", /* arch_name */ \
- print, /* printable name */ \
- 1, /* section align power */ \
- default, /* the default machine */ \
+ machine, /* Machine number. */ \
+ "avr", /* Architecture name. */ \
+ print, /* Printable name. */ \
+ 1, /* Section align power. */ \
+ default, /* Is this the default ? */ \
compatible, \
bfd_default_scan, \
- next \
+ bfd_arch_default_fill, \
+ next, \
+ 0 /* Maximum offset of a reloc from the start of an insn. */ \
}
static const bfd_arch_info_type arch_info_struct[] =
{
- /* AT90S1200, ATtiny1x, ATtiny28 */
- N (16, bfd_mach_avr1, "avr:1", false, & arch_info_struct[1]),
+ /* Assembler only. */
+ 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]),
+ /* 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]),
- /* ATmega83, ATmega85 */
- N (16, bfd_mach_avr4, "avr:4", false, & arch_info_struct[4]),
+ /* 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]),
- /* ATmega161, ATmega163, ATmega32, AT94K */
- N (22, bfd_mach_avr5, "avr:5", false, NULL)
-};
+ /* Classic, == 128K. */
+ N (22, bfd_mach_avr31, "avr:31", FALSE, & arch_info_struct[5]),
-const bfd_arch_info_type bfd_avr_arch =
- N (16, bfd_mach_avr2, "avr", true, & arch_info_struct[0]);
+ /* Classic + MOVW + JMP/CALL, > 8K, <= 64K. */
+ N (16, bfd_mach_avr35, "avr:35", FALSE, & arch_info_struct[6]),
-/* 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. */
+ /* Enhanced, <= 8K. */
+ N (16, bfd_mach_avr4, "avr:4", FALSE, & arch_info_struct[7]),
-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;
+ /* 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]),
- /* 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;
+ /* Enhanced, == 128K. */
+ N (22, bfd_mach_avr51, "avr:51", FALSE, & arch_info_struct[9]),
- /* So far all newer AVR architecture cores are supersets of previous
- cores. */
- if (a->mach <= b->mach)
- return b;
+ /* 3-Byte PC. */
+ N (22, bfd_mach_avr6, "avr:6", FALSE, & arch_info_struct[10]),
- if (a->mach >= b->mach)
- return a;
+ /* Tiny core (AVR Tiny). */
+ N (16, bfd_mach_avrtiny, "avr:100", FALSE, & arch_info_struct[11]),
- /* Never reached! */
- return NULL;
-}
+ /* Xmega 1. */
+ N (24, bfd_mach_avrxmega1, "avr:101", FALSE, & arch_info_struct[12]),
+
+ /* Xmega 2. */
+ N (24, bfd_mach_avrxmega2, "avr:102", FALSE, & arch_info_struct[13]),
+
+ /* Xmega 3. */
+ N (24, bfd_mach_avrxmega3, "avr:103", FALSE, & arch_info_struct[14]),
+
+ /* Xmega 4. */
+ N (24, bfd_mach_avrxmega4, "avr:104", FALSE, & arch_info_struct[15]),
+
+ /* Xmega 5. */
+ N (24, bfd_mach_avrxmega5, "avr:105", FALSE, & arch_info_struct[16]),
+
+ /* Xmega 6. */
+ N (24, bfd_mach_avrxmega6, "avr:106", FALSE, & arch_info_struct[17]),
+
+ /* Xmega 7. */
+ N (24, bfd_mach_avrxmega7, "avr:107", FALSE, NULL)
+
+};
+
+const bfd_arch_info_type bfd_avr_arch =
+ N (16, bfd_mach_avr2, "avr", TRUE, & arch_info_struct[0]);
projects / deliverable / binutils-gdb.git / blobdiff