X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fcpu-m68k.c;h=bfd32e3b20bbf21afc428bc698de96e9590fb8df;hb=2480b6fa946bb2d2dc993b1c4a83a8e1258a75e8;hp=83aaa254c1fcebce9a2ef4a4c9212d1fafd28758;hpb=0b2e31dc3b568d10386bcfc3e2c75e21a72be568;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/cpu-m68k.c b/bfd/cpu-m68k.c index 83aaa254c1..bfd32e3b20 100644 --- a/bfd/cpu-m68k.c +++ b/bfd/cpu-m68k.c @@ -1,13 +1,12 @@ /* BFD library support routines for architectures. - Copyright 1990, 1991, 1992, 1993, 1994, 1997, 1998, 2000, 2001, 2002, - 2003, 2004, 2006 Free Software Foundation, Inc. + Copyright (C) 1990-2019 Free Software Foundation, Inc. Hacked by Steve Chamberlain of Cygnus Support. 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, @@ -17,19 +16,22 @@ 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" #include "opcode/m68k.h" +#include "cpu-m68k.h" static const bfd_arch_info_type * bfd_m68k_compatible (const bfd_arch_info_type *a, const bfd_arch_info_type *b); #define N(name, print,d,next) \ -{ 32, 32, 8, bfd_arch_m68k, name, "m68k",print,2,d,bfd_m68k_compatible,bfd_default_scan, next, } +{ 32, 32, 8, bfd_arch_m68k, name, "m68k",print,2,d,bfd_m68k_compatible, \ + bfd_default_scan, bfd_arch_default_fill, next, 0 } static const bfd_arch_info_type arch_info_struct[] = { @@ -41,53 +43,66 @@ static const bfd_arch_info_type arch_info_struct[] = N(bfd_mach_m68040, "m68k:68040", FALSE, &arch_info_struct[6]), N(bfd_mach_m68060, "m68k:68060", FALSE, &arch_info_struct[7]), N(bfd_mach_cpu32, "m68k:cpu32", FALSE, &arch_info_struct[8]), + N(bfd_mach_fido, "m68k:fido", FALSE, &arch_info_struct[9]), /* Various combinations of CF architecture features */ N(bfd_mach_mcf_isa_a_nodiv, "m68k:isa-a:nodiv", - FALSE, &arch_info_struct[9]), - N(bfd_mach_mcf_isa_a, "m68k:isa-a", FALSE, &arch_info_struct[10]), - N(bfd_mach_mcf_isa_a_mac, "m68k:isa-a:mac", + N(bfd_mach_mcf_isa_a, "m68k:isa-a", FALSE, &arch_info_struct[11]), - N(bfd_mach_mcf_isa_a_emac, "m68k:isa-a:emac", + N(bfd_mach_mcf_isa_a_mac, "m68k:isa-a:mac", FALSE, &arch_info_struct[12]), - N(bfd_mach_mcf_isa_aplus, "m68k:isa-aplus", + N(bfd_mach_mcf_isa_a_emac, "m68k:isa-a:emac", FALSE, &arch_info_struct[13]), - N(bfd_mach_mcf_isa_aplus_mac, "m68k:isa-aplus:mac", + N(bfd_mach_mcf_isa_aplus, "m68k:isa-aplus", FALSE, &arch_info_struct[14]), - N(bfd_mach_mcf_isa_aplus_emac, "m68k:isa-aplus:emac", + N(bfd_mach_mcf_isa_aplus_mac, "m68k:isa-aplus:mac", FALSE, &arch_info_struct[15]), - N(bfd_mach_mcf_isa_b_nousp, "m68k:isa-b:nousp", + N(bfd_mach_mcf_isa_aplus_emac, "m68k:isa-aplus:emac", FALSE, &arch_info_struct[16]), - N(bfd_mach_mcf_isa_b_nousp_mac, "m68k:isa-b:nousp:mac", + N(bfd_mach_mcf_isa_b_nousp, "m68k:isa-b:nousp", FALSE, &arch_info_struct[17]), - N(bfd_mach_mcf_isa_b_nousp_emac, "m68k:isa-b:nousp:emac", + N(bfd_mach_mcf_isa_b_nousp_mac, "m68k:isa-b:nousp:mac", FALSE, &arch_info_struct[18]), - N(bfd_mach_mcf_isa_b, "m68k:isa-b", + N(bfd_mach_mcf_isa_b_nousp_emac, "m68k:isa-b:nousp:emac", FALSE, &arch_info_struct[19]), - N(bfd_mach_mcf_isa_b_mac, "m68k:isa-b:mac", + N(bfd_mach_mcf_isa_b, "m68k:isa-b", FALSE, &arch_info_struct[20]), - N(bfd_mach_mcf_isa_b_emac, "m68k:isa-b:emac", + N(bfd_mach_mcf_isa_b_mac, "m68k:isa-b:mac", FALSE, &arch_info_struct[21]), - N(bfd_mach_mcf_isa_b_float, "m68k:isa-b:float", + N(bfd_mach_mcf_isa_b_emac, "m68k:isa-b:emac", FALSE, &arch_info_struct[22]), - N(bfd_mach_mcf_isa_b_float_mac, "m68k:isa-b:float:mac", + N(bfd_mach_mcf_isa_b_float, "m68k:isa-b:float", FALSE, &arch_info_struct[23]), - N(bfd_mach_mcf_isa_b_float_emac, "m68k:isa-b:float:emac", + N(bfd_mach_mcf_isa_b_float_mac, "m68k:isa-b:float:mac", FALSE, &arch_info_struct[24]), + N(bfd_mach_mcf_isa_b_float_emac, "m68k:isa-b:float:emac", + FALSE, &arch_info_struct[25]), + N(bfd_mach_mcf_isa_c, "m68k:isa-c", + FALSE, &arch_info_struct[26]), + N(bfd_mach_mcf_isa_c_mac, "m68k:isa-c:mac", + FALSE, &arch_info_struct[27]), + N(bfd_mach_mcf_isa_c_emac, "m68k:isa-c:emac", + FALSE, &arch_info_struct[28]), + N(bfd_mach_mcf_isa_c_nodiv, "m68k:isa-c:nodiv", + FALSE, &arch_info_struct[29]), + N(bfd_mach_mcf_isa_c_nodiv_mac, "m68k:isa-c:nodiv:mac", + FALSE, &arch_info_struct[30]), + N(bfd_mach_mcf_isa_c_nodiv_emac, "m68k:isa-c:nodiv:emac", + FALSE, &arch_info_struct[31]), /* Legacy names for CF architectures */ - N(bfd_mach_mcf_isa_a_nodiv, "m68k:5200", FALSE, &arch_info_struct[25]), - N(bfd_mach_mcf_isa_a_mac,"m68k:5206e", FALSE, &arch_info_struct[26]), - N(bfd_mach_mcf_isa_a_mac, "m68k:5307", FALSE, &arch_info_struct[27]), - N(bfd_mach_mcf_isa_b_nousp_mac, "m68k:5407", FALSE, &arch_info_struct[28]), - N(bfd_mach_mcf_isa_aplus_emac, "m68k:528x", FALSE, &arch_info_struct[29]), - N(bfd_mach_mcf_isa_aplus_emac, "m68k:521x", FALSE, &arch_info_struct[30]), - N(bfd_mach_mcf_isa_a_emac, "m68k:5249", FALSE, &arch_info_struct[31]), + N(bfd_mach_mcf_isa_a_nodiv, "m68k:5200", FALSE, &arch_info_struct[32]), + N(bfd_mach_mcf_isa_a_mac,"m68k:5206e", FALSE, &arch_info_struct[33]), + N(bfd_mach_mcf_isa_a_mac, "m68k:5307", FALSE, &arch_info_struct[34]), + N(bfd_mach_mcf_isa_b_nousp_mac, "m68k:5407", FALSE, &arch_info_struct[35]), + N(bfd_mach_mcf_isa_aplus_emac, "m68k:528x", FALSE, &arch_info_struct[36]), + N(bfd_mach_mcf_isa_aplus_emac, "m68k:521x", FALSE, &arch_info_struct[37]), + N(bfd_mach_mcf_isa_a_emac, "m68k:5249", FALSE, &arch_info_struct[38]), N(bfd_mach_mcf_isa_b_float_emac, "m68k:547x", - FALSE, &arch_info_struct[32]), + FALSE, &arch_info_struct[39]), N(bfd_mach_mcf_isa_b_float_emac, "m68k:548x", - FALSE, &arch_info_struct[33]), + FALSE, &arch_info_struct[40]), N(bfd_mach_mcf_isa_b_float_emac, "m68k:cfv4e", FALSE, 0), }; @@ -96,7 +111,7 @@ const bfd_arch_info_type bfd_m68k_arch = /* Table indexed by bfd_mach_arch number indicating which architectural features are supported. */ -static const unsigned m68k_arch_features[] = +static const unsigned m68k_arch_features[] = { 0, m68000|m68881|m68851, @@ -107,6 +122,7 @@ static const unsigned m68k_arch_features[] = m68040|m68881|m68851, m68060|m68881|m68851, cpu32|m68881, + fido_a|m68881, mcfisa_a, mcfisa_a|mcfhwdiv, mcfisa_a|mcfhwdiv|mcfmac, @@ -123,6 +139,12 @@ static const unsigned m68k_arch_features[] = mcfisa_a|mcfhwdiv|mcfisa_b|mcfusp|cfloat, mcfisa_a|mcfhwdiv|mcfisa_b|mcfusp|cfloat|mcfmac, mcfisa_a|mcfhwdiv|mcfisa_b|mcfusp|cfloat|mcfemac, + mcfisa_a|mcfhwdiv|mcfisa_c|mcfusp, + mcfisa_a|mcfhwdiv|mcfisa_c|mcfusp|mcfmac, + mcfisa_a|mcfhwdiv|mcfisa_c|mcfusp|mcfemac, + mcfisa_a|mcfisa_c|mcfusp, + mcfisa_a|mcfisa_c|mcfusp|mcfmac, + mcfisa_a|mcfisa_c|mcfusp|mcfemac, }; /* Return the count of bits set in MASK */ @@ -164,7 +186,7 @@ int bfd_m68k_features_to_mach (unsigned features) ix++) { unsigned this_extra, this_missing; - + if (m68k_arch_features[ix] == features) return ix; this_extra = bit_count (m68k_arch_features[ix] & ~features); @@ -173,7 +195,7 @@ int bfd_m68k_features_to_mach (unsigned features) extra = this_extra; superset = ix; } - + this_missing = bit_count (features & ~m68k_arch_features[ix]); if (this_missing < missing) { @@ -198,19 +220,53 @@ bfd_m68k_compatible (const bfd_arch_info_type *a, return b; if (!b->mach) return a; - + if (a->mach <= bfd_mach_m68060 && b->mach <= bfd_mach_m68060) /* Merge m68k machine. */ return a->mach > b->mach ? a : b; - else if (a->mach >= bfd_mach_mcf_isa_a_nodiv - && b->mach >= bfd_mach_mcf_isa_a_nodiv) + else if (a->mach >= bfd_mach_cpu32 && b->mach >= bfd_mach_cpu32) { - /* Merge cf machine. */ + /* Merge the machine features. */ unsigned features = (bfd_m68k_mach_to_features (a->mach) | bfd_m68k_mach_to_features (b->mach)); - unsigned machine = bfd_m68k_features_to_mach (features); - return bfd_lookup_arch (a->arch, machine); + /* CPU32 and Coldfire are incompatible. */ + if ((~features & (cpu32 | mcfisa_a)) == 0) + return NULL; + + /* Fido and Coldfire are incompatible. */ + if ((~features & (fido_a | mcfisa_a)) == 0) + return NULL; + + /* ISA A+ and ISA B are incompatible. */ + if ((~features & (mcfisa_aa | mcfisa_b)) == 0) + return NULL; + + /* ISA B and ISA C are incompatible. */ + if ((~features & (mcfisa_b | mcfisa_c)) == 0) + return NULL; + + /* MAC and EMAC code cannot be merged. */ + if ((~features & (mcfmac | mcfemac)) == 0) + return NULL; + + /* CPU32 is compatible with Fido except that Fido does not + support tbl instructions. Warn when the user wants to mix + the two. */ + if ((a->mach == bfd_mach_cpu32 && b->mach == bfd_mach_fido) + || (a->mach == bfd_mach_fido && b->mach == bfd_mach_cpu32)) + { + static int cpu32_fido_mix_warning; + if (!cpu32_fido_mix_warning) + { + cpu32_fido_mix_warning = 1; + _bfd_error_handler ("warning: linking CPU32 objects with fido objects"); + } + return bfd_lookup_arch (a->arch, + bfd_m68k_features_to_mach (fido_a | m68881)); + } + + return bfd_lookup_arch (a->arch, bfd_m68k_features_to_mach (features)); } else /* They are incompatible. */