114 lines
4.5 KiB
C
114 lines
4.5 KiB
C
|
/* MC68k ELF support for BFD.
|
||
|
|
Copyright (C) 1998-2022 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,
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|