X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fcpu-avr.c;h=029b416e186f00157f3225a53c75c60a3ebddc5a;hb=735fc2ca685b55bf1debbfcea6d2ab544e58a530;hp=c83017a985b4656c5e05d2be8e8c873e637f254b;hpb=28c9d252b48e5c262359910389f157de087060d6;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/cpu-avr.c b/bfd/cpu-avr.c
index c83017a985..029b416e18 100644
--- a/bfd/cpu-avr.c
+++ b/bfd/cpu-avr.c
@@ -1,12 +1,12 @@
 /* BFD library support routines for the AVR architecture.
-   Copyright 1999, 2000, 2002, 2006 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 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,
@@ -16,10 +16,11 @@
 
    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
@@ -34,28 +35,56 @@ compatible (const bfd_arch_info_type * a,
   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 >= b->mach)
+  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;
 
-  /* Never reached!  */
   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 number.  */		\
   "avr",			/* Architecture name.   */	\
@@ -64,28 +93,71 @@ compatible (const bfd_arch_info_type * a,
   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.  */
+  /* 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]),
+
+  /* Enhanced, <= 8K.  */
+  N (16, bfd_mach_avr4, "avr:4", FALSE, & arch_info_struct[7]),
+
+  /* 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]),
+
+  /* 3-Byte PC.  */
+  N (22, bfd_mach_avr6, "avr:6", FALSE, & arch_info_struct[10]),
+
+  /* Tiny core (AVR Tiny).  */
+  N (16, bfd_mach_avrtiny, "avr:100", FALSE, & arch_info_struct[11]),
+
+  /* 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]),
 
-  /* ATmega83, ATmega85.  */
-  N (16, bfd_mach_avr4, "avr:4", FALSE, & arch_info_struct[4]),
+  /* Xmega 6.  */
+  N (24, bfd_mach_avrxmega6, "avr:106", FALSE, & arch_info_struct[17]),
 
-  /* ATmega161, ATmega163, ATmega32, AT94K.  */
-  N (22, bfd_mach_avr5, "avr:5", FALSE, & arch_info_struct[5]),
+  /* Xmega 7.  */
+  N (24, bfd_mach_avrxmega7, "avr:107", FALSE, NULL)
 
-  /* ATmega256x.  */
-  N (22, bfd_mach_avr6, "avr:6", FALSE, NULL)
 };
 
 const bfd_arch_info_type bfd_avr_arch =