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      1 /* MC68k ELF support for BFD.
      2    Copyright (C) 1998-2014 Free Software Foundation, Inc.
      3 
      4    This file is part of BFD, the Binary File Descriptor library.
      5 
      6    This program is free software; you can redistribute it and/or modify
      7    it under the terms of the GNU General Public License as published by
      8    the Free Software Foundation; either version 3 of the License, or
      9    (at your option) any later version.
     10 
     11    This program is distributed in the hope that it will be useful,
     12    but WITHOUT ANY WARRANTY; without even the implied warranty of
     13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14    GNU General Public License for more details.
     15 
     16    You should have received a copy of the GNU General Public License
     17    along with this program; if not, write to the Free Software Foundation,
     18    Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
     19 
     20 #ifndef _ELF_M68K_H
     21 #define _ELF_M68K_H
     22 
     23 #include "elf/reloc-macros.h"
     24 
     25 /* Relocation types.  */
     26 START_RELOC_NUMBERS (elf_m68k_reloc_type)
     27   RELOC_NUMBER (R_68K_NONE, 0)		/* No reloc */
     28   RELOC_NUMBER (R_68K_32, 1)		/* Direct 32 bit  */
     29   RELOC_NUMBER (R_68K_16, 2)		/* Direct 16 bit  */
     30   RELOC_NUMBER (R_68K_8, 3)		/* Direct 8 bit  */
     31   RELOC_NUMBER (R_68K_PC32, 4)		/* PC relative 32 bit */
     32   RELOC_NUMBER (R_68K_PC16, 5)		/* PC relative 16 bit */
     33   RELOC_NUMBER (R_68K_PC8, 6)		/* PC relative 8 bit */
     34   RELOC_NUMBER (R_68K_GOT32, 7)		/* 32 bit PC relative GOT entry */
     35   RELOC_NUMBER (R_68K_GOT16, 8)		/* 16 bit PC relative GOT entry */
     36   RELOC_NUMBER (R_68K_GOT8, 9)		/* 8 bit PC relative GOT entry */
     37   RELOC_NUMBER (R_68K_GOT32O, 10)	/* 32 bit GOT offset */
     38   RELOC_NUMBER (R_68K_GOT16O, 11)	/* 16 bit GOT offset */
     39   RELOC_NUMBER (R_68K_GOT8O, 12)	/* 8 bit GOT offset */
     40   RELOC_NUMBER (R_68K_PLT32, 13)	/* 32 bit PC relative PLT address */
     41   RELOC_NUMBER (R_68K_PLT16, 14)	/* 16 bit PC relative PLT address */
     42   RELOC_NUMBER (R_68K_PLT8, 15)		/* 8 bit PC relative PLT address */
     43   RELOC_NUMBER (R_68K_PLT32O, 16)	/* 32 bit PLT offset */
     44   RELOC_NUMBER (R_68K_PLT16O, 17)	/* 16 bit PLT offset */
     45   RELOC_NUMBER (R_68K_PLT8O, 18)	/* 8 bit PLT offset */
     46   RELOC_NUMBER (R_68K_COPY, 19)		/* Copy symbol at runtime */
     47   RELOC_NUMBER (R_68K_GLOB_DAT, 20)	/* Create GOT entry */
     48   RELOC_NUMBER (R_68K_JMP_SLOT, 21)	/* Create PLT entry */
     49   RELOC_NUMBER (R_68K_RELATIVE, 22)	/* Adjust by program base */
     50   /* These are GNU extensions to enable C++ vtable garbage collection.  */
     51   RELOC_NUMBER (R_68K_GNU_VTINHERIT, 23)
     52   RELOC_NUMBER (R_68K_GNU_VTENTRY, 24)
     53   /* TLS static relocations.  */
     54   RELOC_NUMBER (R_68K_TLS_GD32, 25)
     55   RELOC_NUMBER (R_68K_TLS_GD16, 26)
     56   RELOC_NUMBER (R_68K_TLS_GD8, 27)
     57   RELOC_NUMBER (R_68K_TLS_LDM32, 28)
     58   RELOC_NUMBER (R_68K_TLS_LDM16, 29)
     59   RELOC_NUMBER (R_68K_TLS_LDM8, 30)
     60   RELOC_NUMBER (R_68K_TLS_LDO32, 31)
     61   RELOC_NUMBER (R_68K_TLS_LDO16, 32)
     62   RELOC_NUMBER (R_68K_TLS_LDO8, 33)
     63   RELOC_NUMBER (R_68K_TLS_IE32, 34)
     64   RELOC_NUMBER (R_68K_TLS_IE16, 35)
     65   RELOC_NUMBER (R_68K_TLS_IE8, 36)
     66   RELOC_NUMBER (R_68K_TLS_LE32, 37)
     67   RELOC_NUMBER (R_68K_TLS_LE16, 38)
     68   RELOC_NUMBER (R_68K_TLS_LE8, 39)
     69   RELOC_NUMBER (R_68K_TLS_DTPMOD32, 40)
     70   RELOC_NUMBER (R_68K_TLS_DTPREL32, 41)
     71   RELOC_NUMBER (R_68K_TLS_TPREL32, 42)
     72 END_RELOC_NUMBERS (R_68K_max)
     73 
     74 /* We use the top 24 bits to encode information about the
     75    architecture variant.  */
     76 #define EF_M68K_CPU32    0x00810000
     77 #define EF_M68K_M68000   0x01000000
     78 #define EF_M68K_CFV4E    0x00008000
     79 #define EF_M68K_FIDO     0x02000000
     80 #define EF_M68K_ARCH_MASK						\
     81   (EF_M68K_M68000 | EF_M68K_CPU32 | EF_M68K_CFV4E | EF_M68K_FIDO)
     82 
     83 /* We use the bottom 8 bits to encode information about the
     84    coldfire variant.  If we use any of these bits, the top 24 bits are
     85    either 0 or EF_M68K_CFV4E.  */
     86 #define EF_M68K_CF_ISA_MASK	0x0F  /* Which ISA */
     87 #define EF_M68K_CF_ISA_A_NODIV	0x01  /* ISA A except for div */
     88 #define EF_M68K_CF_ISA_A	0x02
     89 #define EF_M68K_CF_ISA_A_PLUS	0x03
     90 #define EF_M68K_CF_ISA_B_NOUSP	0x04  /* ISA_B except for USP */
     91 #define EF_M68K_CF_ISA_B	0x05
     92 #define EF_M68K_CF_ISA_C	0x06
     93 #define EF_M68K_CF_ISA_C_NODIV	0x07  /* ISA C except for div */
     94 #define EF_M68K_CF_MAC_MASK	0x30
     95 #define EF_M68K_CF_MAC		0x10  /* MAC */
     96 #define EF_M68K_CF_EMAC		0x20  /* EMAC */
     97 #define EF_M68K_CF_EMAC_B	0x30  /* EMAC_B */
     98 #define EF_M68K_CF_FLOAT	0x40  /* Has float insns */
     99 #define EF_M68K_CF_MASK		0xFF
    100 
    101 #endif
    102