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      1 /* bfd back-end for mips support
      2    Copyright (C) 1990-2016 Free Software Foundation, Inc.
      3    Written by Steve Chamberlain of Cygnus Support.
      4 
      5    This file is part of BFD, the Binary File Descriptor library.
      6 
      7    This program is free software; you can redistribute it and/or modify
      8    it under the terms of the GNU General Public License as published by
      9    the Free Software Foundation; either version 3 of the License, or
     10    (at your option) any later version.
     11 
     12    This program is distributed in the hope that it will be useful,
     13    but WITHOUT ANY WARRANTY; without even the implied warranty of
     14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15    GNU General Public License for more details.
     16 
     17    You should have received a copy of the GNU General Public License
     18    along with this program; if not, write to the Free Software
     19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     20    MA 02110-1301, USA.  */
     21 
     22 #include "sysdep.h"
     23 #include "bfd.h"
     24 #include "libbfd.h"
     25 
     26 static const bfd_arch_info_type *mips_compatible
     27   (const bfd_arch_info_type *, const bfd_arch_info_type *);
     28 
     29 /* The default routine tests bits_per_word, which is wrong on mips as
     30    mips word size doesn't correlate with reloc size.  */
     31 
     32 static const bfd_arch_info_type *
     33 mips_compatible (const bfd_arch_info_type *a, const bfd_arch_info_type *b)
     34 {
     35   if (a->arch != b->arch)
     36     return NULL;
     37 
     38   /* Machine compatibility is checked in
     39      _bfd_mips_elf_merge_private_bfd_data.  */
     40 
     41   return a;
     42 }
     43 
     44 #define N(BITS_WORD, BITS_ADDR, NUMBER, PRINT, DEFAULT, NEXT)		\
     45   {							\
     46     BITS_WORD, /*  bits in a word */			\
     47     BITS_ADDR, /* bits in an address */			\
     48     8,	/* 8 bits in a byte */				\
     49     bfd_arch_mips,					\
     50     NUMBER,						\
     51     "mips",						\
     52     PRINT,						\
     53     3,							\
     54     DEFAULT,						\
     55     mips_compatible,					\
     56     bfd_default_scan,					\
     57     bfd_arch_default_fill,				\
     58     NEXT,						\
     59   }
     60 
     61 enum
     62 {
     63   I_mips3000,
     64   I_mips3900,
     65   I_mips4000,
     66   I_mips4010,
     67   I_mips4100,
     68   I_mips4111,
     69   I_mips4120,
     70   I_mips4300,
     71   I_mips4400,
     72   I_mips4600,
     73   I_mips4650,
     74   I_mips5000,
     75   I_mips5400,
     76   I_mips5500,
     77   I_mips5900,
     78   I_mips6000,
     79   I_mips7000,
     80   I_mips8000,
     81   I_mips9000,
     82   I_mips10000,
     83   I_mips12000,
     84   I_mips14000,
     85   I_mips16000,
     86   I_mips16,
     87   I_mips5,
     88   I_mipsisa32,
     89   I_mipsisa32r2,
     90   I_mipsisa32r3,
     91   I_mipsisa32r5,
     92   I_mipsisa32r6,
     93   I_mipsisa64,
     94   I_mipsisa64r2,
     95   I_mipsisa64r3,
     96   I_mipsisa64r5,
     97   I_mipsisa64r6,
     98   I_sb1,
     99   I_loongson_2e,
    100   I_loongson_2f,
    101   I_loongson_3a,
    102   I_mipsocteon,
    103   I_mipsocteonp,
    104   I_mipsocteon2,
    105   I_mipsocteon3,
    106   I_xlr,
    107   I_micromips
    108 };
    109 
    110 #define NN(index) (&arch_info_struct[(index) + 1])
    111 
    112 static const bfd_arch_info_type arch_info_struct[] =
    113 {
    114   N (32, 32, bfd_mach_mips3000, "mips:3000",      FALSE, NN(I_mips3000)),
    115   N (32, 32, bfd_mach_mips3900, "mips:3900",      FALSE, NN(I_mips3900)),
    116   N (64, 64, bfd_mach_mips4000, "mips:4000",      FALSE, NN(I_mips4000)),
    117   N (64, 64, bfd_mach_mips4010, "mips:4010",      FALSE, NN(I_mips4010)),
    118   N (64, 64, bfd_mach_mips4100, "mips:4100",      FALSE, NN(I_mips4100)),
    119   N (64, 64, bfd_mach_mips4111, "mips:4111",      FALSE, NN(I_mips4111)),
    120   N (64, 64, bfd_mach_mips4120, "mips:4120",      FALSE, NN(I_mips4120)),
    121   N (64, 64, bfd_mach_mips4300, "mips:4300",      FALSE, NN(I_mips4300)),
    122   N (64, 64, bfd_mach_mips4400, "mips:4400",      FALSE, NN(I_mips4400)),
    123   N (64, 64, bfd_mach_mips4600, "mips:4600",      FALSE, NN(I_mips4600)),
    124   N (64, 64, bfd_mach_mips4650, "mips:4650",      FALSE, NN(I_mips4650)),
    125   N (64, 64, bfd_mach_mips5000, "mips:5000",      FALSE, NN(I_mips5000)),
    126   N (64, 64, bfd_mach_mips5400, "mips:5400",      FALSE, NN(I_mips5400)),
    127   N (64, 64, bfd_mach_mips5500, "mips:5500",      FALSE, NN(I_mips5500)),
    128   N (64, 32, bfd_mach_mips5900, "mips:5900",      FALSE, NN(I_mips5900)),
    129   N (32, 32, bfd_mach_mips6000, "mips:6000",      FALSE, NN(I_mips6000)),
    130   N (64, 64, bfd_mach_mips7000, "mips:7000",      FALSE, NN(I_mips7000)),
    131   N (64, 64, bfd_mach_mips8000, "mips:8000",      FALSE, NN(I_mips8000)),
    132   N (64, 64, bfd_mach_mips9000, "mips:9000",      FALSE, NN(I_mips9000)),
    133   N (64, 64, bfd_mach_mips10000,"mips:10000",     FALSE, NN(I_mips10000)),
    134   N (64, 64, bfd_mach_mips12000,"mips:12000",     FALSE, NN(I_mips12000)),
    135   N (64, 64, bfd_mach_mips14000,"mips:14000",     FALSE, NN(I_mips14000)),
    136   N (64, 64, bfd_mach_mips16000,"mips:16000",     FALSE, NN(I_mips16000)),
    137   N (64, 64, bfd_mach_mips16,   "mips:16",        FALSE, NN(I_mips16)),
    138   N (64, 64, bfd_mach_mips5,    "mips:mips5",     FALSE, NN(I_mips5)),
    139   N (32, 32, bfd_mach_mipsisa32,  "mips:isa32",   FALSE, NN(I_mipsisa32)),
    140   N (32, 32, bfd_mach_mipsisa32r2,"mips:isa32r2", FALSE, NN(I_mipsisa32r2)),
    141   N (32, 32, bfd_mach_mipsisa32r3,"mips:isa32r3", FALSE, NN(I_mipsisa32r3)),
    142   N (32, 32, bfd_mach_mipsisa32r5,"mips:isa32r5", FALSE, NN(I_mipsisa32r5)),
    143   N (32, 32, bfd_mach_mipsisa32r6,"mips:isa32r6", FALSE, NN(I_mipsisa32r6)),
    144   N (64, 64, bfd_mach_mipsisa64,  "mips:isa64",   FALSE, NN(I_mipsisa64)),
    145   N (64, 64, bfd_mach_mipsisa64r2,"mips:isa64r2", FALSE, NN(I_mipsisa64r2)),
    146   N (64, 64, bfd_mach_mipsisa64r3,"mips:isa64r3", FALSE, NN(I_mipsisa64r3)),
    147   N (64, 64, bfd_mach_mipsisa64r5,"mips:isa64r5", FALSE, NN(I_mipsisa64r5)),
    148   N (64, 64, bfd_mach_mipsisa64r6,"mips:isa64r6", FALSE, NN(I_mipsisa64r6)),
    149   N (64, 64, bfd_mach_mips_sb1, "mips:sb1",       FALSE, NN(I_sb1)),
    150   N (64, 64, bfd_mach_mips_loongson_2e, "mips:loongson_2e",       FALSE, NN(I_loongson_2e)),
    151   N (64, 64, bfd_mach_mips_loongson_2f, "mips:loongson_2f",       FALSE, NN(I_loongson_2f)),
    152   N (64, 64, bfd_mach_mips_loongson_3a, "mips:loongson_3a",       FALSE, NN(I_loongson_3a)),
    153   N (64, 64, bfd_mach_mips_octeon,"mips:octeon",  FALSE, NN(I_mipsocteon)),
    154   N (64, 64, bfd_mach_mips_octeonp,"mips:octeon+",  FALSE, NN(I_mipsocteonp)),
    155   N (64, 64, bfd_mach_mips_octeon2,"mips:octeon2",  FALSE, NN(I_mipsocteon2)),
    156   N (64, 64, bfd_mach_mips_octeon3, "mips:octeon3",  FALSE, NN(I_mipsocteon3)),
    157   N (64, 64, bfd_mach_mips_xlr, "mips:xlr",       FALSE, NN(I_xlr)),
    158   N (64, 64, bfd_mach_mips_micromips,"mips:micromips",FALSE,0)
    159 };
    160 
    161 /* The default architecture is mips:3000, but with a machine number of
    162    zero.  This lets the linker distinguish between a default setting
    163    of mips, and an explicit setting of mips:3000.  */
    164 
    165 const bfd_arch_info_type bfd_mips_arch =
    166 N (32, 32, 0, "mips", TRUE, &arch_info_struct[0]);
    167