| /* 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, |
| }; |
| |
| #endif |
