/* MC68k ELF support for BFD.
Copyright (C) 1998-2024 Free Software Foundation, Inc.
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. */
#ifndef _ELF_M68K_H
#define _ELF_M68K_H
#include "elf/reloc-macros.h"
/* Relocation types. */
START_RELOC_NUMBERS (elf_m68k_reloc_type)
RELOC_NUMBER (R_68K_NONE, 0) /* No reloc */
RELOC_NUMBER (R_68K_32, 1) /* Direct 32 bit */
RELOC_NUMBER (R_68K_16, 2) /* Direct 16 bit */
RELOC_NUMBER (R_68K_8, 3) /* Direct 8 bit */
RELOC_NUMBER (R_68K_PC32, 4) /* PC relative 32 bit */
RELOC_NUMBER (R_68K_PC16, 5) /* PC relative 16 bit */
RELOC_NUMBER (R_68K_PC8, 6) /* PC relative 8 bit */
RELOC_NUMBER (R_68K_GOT32, 7) /* 32 bit PC relative GOT entry */
RELOC_NUMBER (R_68K_GOT16, 8) /* 16 bit PC relative GOT entry */
RELOC_NUMBER (R_68K_GOT8, 9) /* 8 bit PC relative GOT entry */
RELOC_NUMBER (R_68K_GOT32O, 10) /* 32 bit GOT offset */
RELOC_NUMBER (R_68K_GOT16O, 11) /* 16 bit GOT offset */
RELOC_NUMBER (R_68K_GOT8O, 12) /* 8 bit GOT offset */
RELOC_NUMBER (R_68K_PLT32, 13) /* 32 bit PC relative PLT address */
RELOC_NUMBER (R_68K_PLT16, 14) /* 16 bit PC relative PLT address */
RELOC_NUMBER (R_68K_PLT8, 15) /* 8 bit PC relative PLT address */
RELOC_NUMBER (R_68K_PLT32O, 16) /* 32 bit PLT offset */
RELOC_NUMBER (R_68K_PLT16O, 17) /* 16 bit PLT offset */
RELOC_NUMBER (R_68K_PLT8O, 18) /* 8 bit PLT offset */
RELOC_NUMBER (R_68K_COPY, 19) /* Copy symbol at runtime */
RELOC_NUMBER (R_68K_GLOB_DAT, 20) /* Create GOT entry */
RELOC_NUMBER (R_68K_JMP_SLOT, 21) /* Create PLT entry */
RELOC_NUMBER (R_68K_RELATIVE, 22) /* Adjust by program base */
/* These are GNU extensions to enable C++ vtable garbage collection. */
RELOC_NUMBER (R_68K_GNU_VTINHERIT, 23)
RELOC_NUMBER (R_68K_GNU_VTENTRY, 24)
/* TLS static relocations. */
RELOC_NUMBER (R_68K_TLS_GD32, 25)
RELOC_NUMBER (R_68K_TLS_GD16, 26)
RELOC_NUMBER (R_68K_TLS_GD8, 27)
RELOC_NUMBER (R_68K_TLS_LDM32, 28)
RELOC_NUMBER (R_68K_TLS_LDM16, 29)
RELOC_NUMBER (R_68K_TLS_LDM8, 30)
RELOC_NUMBER (R_68K_TLS_LDO32, 31)
RELOC_NUMBER (R_68K_TLS_LDO16, 32)
RELOC_NUMBER (R_68K_TLS_LDO8, 33)
RELOC_NUMBER (R_68K_TLS_IE32, 34)
RELOC_NUMBER (R_68K_TLS_IE16, 35)
RELOC_NUMBER (R_68K_TLS_IE8, 36)
RELOC_NUMBER (R_68K_TLS_LE32, 37)
RELOC_NUMBER (R_68K_TLS_LE16, 38)
RELOC_NUMBER (R_68K_TLS_LE8, 39)
RELOC_NUMBER (R_68K_TLS_DTPMOD32, 40)
RELOC_NUMBER (R_68K_TLS_DTPREL32, 41)
RELOC_NUMBER (R_68K_TLS_TPREL32, 42)
END_RELOC_NUMBERS (R_68K_max)
/* We use the top 24 bits to encode information about the
architecture variant. */
#define EF_M68K_CPU32 0x00810000
#define EF_M68K_M68000 0x01000000
#define EF_M68K_CFV4E 0x00008000
#define EF_M68K_FIDO 0x02000000
#define EF_M68K_ARCH_MASK \
(EF_M68K_M68000 | EF_M68K_CPU32 | EF_M68K_CFV4E | EF_M68K_FIDO)
/* We use the bottom 8 bits to encode information about the
coldfire variant. If we use any of these bits, the top 24 bits are
either 0 or EF_M68K_CFV4E. */
#define EF_M68K_CF_ISA_MASK 0x0F /* Which ISA */
#define EF_M68K_CF_ISA_A_NODIV 0x01 /* ISA A except for div */
#define EF_M68K_CF_ISA_A 0x02
#define EF_M68K_CF_ISA_A_PLUS 0x03
#define EF_M68K_CF_ISA_B_NOUSP 0x04 /* ISA_B except for USP */
#define EF_M68K_CF_ISA_B 0x05
#define EF_M68K_CF_ISA_C 0x06
#define EF_M68K_CF_ISA_C_NODIV 0x07 /* ISA C except for div */
#define EF_M68K_CF_MAC_MASK 0x30
#define EF_M68K_CF_MAC 0x10 /* MAC */
#define EF_M68K_CF_EMAC 0x20 /* EMAC */
#define EF_M68K_CF_EMAC_B 0x30 /* EMAC_B */
#define EF_M68K_CF_FLOAT 0x40 /* Has float insns */
#define EF_M68K_CF_MASK 0xFF
/* GNU object attribute tags. */
enum
{
/* 0-3 are generic. */
/* FP ABI, low 2 bits:
1 for double precision hard-float,
2 for soft-float,
0 for not tagged or not using any ABIs affected by the differences. */
Tag_GNU_M68K_ABI_FP = 4,
};
