bfd/cpu-mips.c

/* bfd back-end for mips support
   Copyright (C) 1990-2025 Free Software Foundation, Inc.
   Written 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 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.

   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 "sysdep.h"
#include "bfd.h"
#include "libbfd.h"

static const bfd_arch_info_type *mips_compatible
  (const bfd_arch_info_type *, const bfd_arch_info_type *);

/* The default routine tests bits_per_word, which is wrong on mips as
   mips word size doesn't correlate with reloc size.  */

static const bfd_arch_info_type *
mips_compatible (const bfd_arch_info_type *a, const bfd_arch_info_type *b)
{
  if (a->arch != b->arch)
    return NULL;

  /* Machine compatibility is checked in
     _bfd_mips_elf_merge_private_bfd_data.  */

  return a;
}

#define N(BITS_WORD, BITS_ADDR, NUMBER, PRINT, DEFAULT, NEXT)		\
  {							\
    BITS_WORD,  /* Bits in a word.  */			\
    BITS_ADDR,  /* Bits in an address.  */		\
    8,	        /* Bits in a byte.  */			\
    bfd_arch_mips,					\
    NUMBER,						\
    "mips",						\
    PRINT,						\
    3,							\
    DEFAULT,						\
    mips_compatible,					\
    bfd_default_scan,					\
    bfd_arch_default_fill,				\
    NEXT,						\
    0 /* Maximum offset of a reloc from the start of an insn.  */ \
  }

enum
{
  I_mips3000,
  I_mips3900,
  I_mips4000,
  I_mips4010,
  I_mips4100,
  I_mips4111,
  I_mips4120,
  I_mips4300,
  I_mips4400,
  I_mips4600,
  I_mips4650,
  I_mips5000,
  I_mips5400,
  I_mips5500,
  I_mips5900,
  I_mips6000,
  I_mips7000,
  I_mips8000,
  I_mips9000,
  I_mips10000,
  I_mips12000,
  I_mips14000,
  I_mips16000,
  I_mips16,
  I_mips5,
  I_mipsisa32,
  I_mipsisa32r2,
  I_mipsisa32r3,
  I_mipsisa32r5,
  I_mipsisa32r6,
  I_mipsisa64,
  I_mipsisa64r2,
  I_mipsisa64r3,
  I_mipsisa64r5,
  I_mipsisa64r6,
  I_sb1,
  I_loongson_2e,
  I_loongson_2f,
  I_gs464,
  I_gs464e,
  I_gs264e,
  I_mipsocteon,
  I_mipsocteonp,
  I_mipsocteon2,
  I_mipsocteon3,
  I_xlr,
  I_interaptiv_mr2,
  I_allegrex,
  I_micromips
};

#define NN(index) (&arch_info_struct[(index) + 1])

static const bfd_arch_info_type arch_info_struct[] =
{
  N (32, 32, bfd_mach_mips3000, "mips:3000",	  false, NN(I_mips3000)),
  N (32, 32, bfd_mach_mips3900, "mips:3900",	  false, NN(I_mips3900)),
  N (64, 64, bfd_mach_mips4000, "mips:4000",	  false, NN(I_mips4000)),
  N (32, 32, bfd_mach_mips4010, "mips:4010",	  false, NN(I_mips4010)),
  N (64, 64, bfd_mach_mips4100, "mips:4100",	  false, NN(I_mips4100)),
  N (64, 64, bfd_mach_mips4111, "mips:4111",	  false, NN(I_mips4111)),
  N (64, 64, bfd_mach_mips4120, "mips:4120",	  false, NN(I_mips4120)),
  N (64, 64, bfd_mach_mips4300, "mips:4300",	  false, NN(I_mips4300)),
  N (64, 64, bfd_mach_mips4400, "mips:4400",	  false, NN(I_mips4400)),
  N (64, 64, bfd_mach_mips4600, "mips:4600",	  false, NN(I_mips4600)),
  N (64, 64, bfd_mach_mips4650, "mips:4650",	  false, NN(I_mips4650)),
  N (64, 64, bfd_mach_mips5000, "mips:5000",	  false, NN(I_mips5000)),
  N (64, 64, bfd_mach_mips5400, "mips:5400",	  false, NN(I_mips5400)),
  N (64, 64, bfd_mach_mips5500, "mips:5500",	  false, NN(I_mips5500)),
  N (64, 32, bfd_mach_mips5900, "mips:5900",	  false, NN(I_mips5900)),
  N (32, 32, bfd_mach_mips6000, "mips:6000",	  false, NN(I_mips6000)),
  N (64, 64, bfd_mach_mips7000, "mips:7000",	  false, NN(I_mips7000)),
  N (64, 64, bfd_mach_mips8000, "mips:8000",	  false, NN(I_mips8000)),
  N (64, 64, bfd_mach_mips9000, "mips:9000",	  false, NN(I_mips9000)),
  N (64, 64, bfd_mach_mips10000,"mips:10000",	  false, NN(I_mips10000)),
  N (64, 64, bfd_mach_mips12000,"mips:12000",	  false, NN(I_mips12000)),
  N (64, 64, bfd_mach_mips14000,"mips:14000",	  false, NN(I_mips14000)),
  N (64, 64, bfd_mach_mips16000,"mips:16000",	  false, NN(I_mips16000)),
  N (64, 64, bfd_mach_mips16,	"mips:16",	  false, NN(I_mips16)),
  N (64, 64, bfd_mach_mips5,	"mips:mips5",	  false, NN(I_mips5)),
  N (32, 32, bfd_mach_mipsisa32,  "mips:isa32",	  false, NN(I_mipsisa32)),
  N (32, 32, bfd_mach_mipsisa32r2,"mips:isa32r2", false, NN(I_mipsisa32r2)),
  N (32, 32, bfd_mach_mipsisa32r3,"mips:isa32r3", false, NN(I_mipsisa32r3)),
  N (32, 32, bfd_mach_mipsisa32r5,"mips:isa32r5", false, NN(I_mipsisa32r5)),
  N (32, 32, bfd_mach_mipsisa32r6,"mips:isa32r6", false, NN(I_mipsisa32r6)),
  N (64, 64, bfd_mach_mipsisa64,  "mips:isa64",	  false, NN(I_mipsisa64)),
  N (64, 64, bfd_mach_mipsisa64r2,"mips:isa64r2", false, NN(I_mipsisa64r2)),
  N (64, 64, bfd_mach_mipsisa64r3,"mips:isa64r3", false, NN(I_mipsisa64r3)),
  N (64, 64, bfd_mach_mipsisa64r5,"mips:isa64r5", false, NN(I_mipsisa64r5)),
  N (64, 64, bfd_mach_mipsisa64r6,"mips:isa64r6", false, NN(I_mipsisa64r6)),
  N (64, 64, bfd_mach_mips_sb1, "mips:sb1",	  false, NN(I_sb1)),
  N (64, 64, bfd_mach_mips_loongson_2e, "mips:loongson_2e", false, NN(I_loongson_2e)),
  N (64, 64, bfd_mach_mips_loongson_2f, "mips:loongson_2f", false, NN(I_loongson_2f)),
  N (64, 64, bfd_mach_mips_gs464, "mips:gs464",	  false, NN(I_gs464)),
  N (64, 64, bfd_mach_mips_gs464e, "mips:gs464e", false, NN(I_gs464e)),
  N (64, 64, bfd_mach_mips_gs264e, "mips:gs264e", false, NN(I_gs264e)),
  N (64, 64, bfd_mach_mips_octeon,"mips:octeon",  false, NN(I_mipsocteon)),
  N (64, 64, bfd_mach_mips_octeonp,"mips:octeon+", false, NN(I_mipsocteonp)),
  N (64, 64, bfd_mach_mips_octeon2,"mips:octeon2", false, NN(I_mipsocteon2)),
  N (64, 64, bfd_mach_mips_octeon3, "mips:octeon3", false, NN(I_mipsocteon3)),
  N (64, 64, bfd_mach_mips_xlr, "mips:xlr",	   false, NN(I_xlr)),
  N (32, 32, bfd_mach_mips_interaptiv_mr2, "mips:interaptiv-mr2", false,
     NN(I_interaptiv_mr2)),
  N (32, 32, bfd_mach_mips_allegrex, "mips:allegrex", false, NN(I_allegrex)),
  N (64, 64, bfd_mach_mips_micromips, "mips:micromips", false, NULL)
};

/* The default architecture is mips:3000, but with a machine number of
   zero.  This lets the linker distinguish between a default setting
   of mips, and an explicit setting of mips:3000.  */

const bfd_arch_info_type bfd_mips_arch =
N (32, 32, 0, "mips", true, &arch_info_struct[0]);