1 /* MC68k ELF support for BFD.
2 Copyright 1998, 1999, 2000, 2002, 2005, 2006 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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 2 of the License, or
9 (at your option) any later version.
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.
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. */
23 #include "elf/reloc-macros.h"
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 END_RELOC_NUMBERS (R_68K_max)
55 /* We use the top 24 bits to encode information about the
56 architecture variant. */
57 #define EF_M68K_CPU32 0x00810000
58 #define EF_M68K_M68000 0x01000000
59 #define EF_M68K_CFV4E 0x00008000
60 #define EF_M68K_ARCH_MASK (EF_M68K_M68000 | EF_M68K_CPU32 | EF_M68K_CFV4E)
62 /* We use the bottom 8 bits to encode information about the
63 coldfire variant. If we use any of these bits, the top 24 bits are
64 either 0 or EF_M68K_CFV4E. */
65 #define EF_M68K_CF_ISA_MASK 0x0F /* Which ISA */
66 #define EF_M68K_CF_ISA_A_NODIV 0x01 /* ISA A except for div */
67 #define EF_M68K_CF_ISA_A 0x02
68 #define EF_M68K_CF_ISA_A_PLUS 0x03
69 #define EF_M68K_CF_ISA_B_NOUSP 0x04 /* ISA_B except for USP */
70 #define EF_M68K_CF_ISA_B 0x05
71 #define EF_M68K_CF_ISA_C 0x06
72 #define EF_M68K_CF_MAC_MASK 0x30
73 #define EF_M68K_CF_MAC 0x10 /* MAC */
74 #define EF_M68K_CF_EMAC 0x20 /* EMAC */
75 #define EF_M68K_CF_EMAC_B 0x30 /* EMAC_B */
76 #define EF_M68K_CF_FLOAT 0x40 /* Has float insns */
77 #define EF_M68K_CF_MASK 0xFF
79 /* We use the bottom 8 bits to encode information about the
80 CPU32 variant. If we use any of these bits, the top 24 bits must
82 #define EF_M68K_CPU32_FIDO_A 0x01
83 #define EF_M68K_CPU32_MASK 0xFF