1 /* MC68k ELF support for BFD. 2 Copyright (C) 1998-2020 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