1 /* m68hc11 & m68hc12 ELF support for BFD. 2 Copyright (C) 1999-2016 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_M68HC11_H 21 #define _ELF_M68HC11_H 22 23 #include "elf/reloc-macros.h" 24 25 /* Relocation types. */ 26 START_RELOC_NUMBERS (elf_m68hc11_reloc_type) 27 RELOC_NUMBER (R_M68HC11_NONE, 0) 28 RELOC_NUMBER (R_M68HC11_8, 1) 29 RELOC_NUMBER (R_M68HC11_HI8, 2) 30 RELOC_NUMBER (R_M68HC11_LO8, 3) 31 RELOC_NUMBER (R_M68HC11_PCREL_8, 4) 32 RELOC_NUMBER (R_M68HC11_16, 5) 33 RELOC_NUMBER (R_M68HC11_32, 6) 34 RELOC_NUMBER (R_M68HC11_3B, 7) 35 RELOC_NUMBER (R_M68HC11_PCREL_16, 8) 36 37 /* These are GNU extensions to enable C++ vtable garbage collection. */ 38 RELOC_NUMBER (R_M68HC11_GNU_VTINHERIT, 9) 39 RELOC_NUMBER (R_M68HC11_GNU_VTENTRY, 10) 40 41 RELOC_NUMBER (R_M68HC11_24, 11) 42 RELOC_NUMBER (R_M68HC11_LO16, 12) 43 RELOC_NUMBER (R_M68HC11_PAGE, 13) 44 45 RELOC_NUMBER (R_M68HC12_16B, 15) 46 RELOC_NUMBER (R_M68HC12_PCREL_9, 16) 47 RELOC_NUMBER (R_M68HC12_PCREL_10, 17) 48 RELOC_NUMBER (R_M68HC12_HI8XG, 18) 49 RELOC_NUMBER (R_M68HC12_LO8XG, 19) 50 51 /* GNU extension for linker relaxation. 52 Mark beginning of a jump instruction (any form). */ 53 RELOC_NUMBER (R_M68HC11_RL_JUMP, 20) 54 55 /* Mark beginning of Gcc relaxation group instruction. */ 56 RELOC_NUMBER (R_M68HC11_RL_GROUP, 21) 57 END_RELOC_NUMBERS (R_M68HC11_max) 58 59 /* Processor specific flags for the ELF header e_flags field. */ 60 61 /* ABI identification. */ 62 #define EF_M68HC11_ABI 0x00000000F 63 64 /* Integers are 32-bit long. */ 65 #define E_M68HC11_I32 0x000000001 66 67 /* Doubles are 64-bit long. */ 68 #define E_M68HC11_F64 0x000000002 69 70 /* Uses 68HC12 memory banks. */ 71 #define E_M68HC12_BANKS 0x000000004 72 73 /* XGATE ram offsetting. */ 74 #define E_M68HC11_XGATE_RAMOFFSET 0x000000100 75 76 /* Suppress warnings */ 77 #define E_M68HC11_NO_BANK_WARNING 0x000000200 78 79 #define EF_M68HC11_MACH_MASK 0xF0 80 #define EF_M68HC11_GENERIC 0x00 /* Generic 68HC12/backward compatibility. */ 81 #define EF_M68HC12_MACH 0x10 /* 68HC12 microcontroller. */ 82 #define EF_M68HCS12_MACH 0x20 /* 68HCS12 microcontroller. */ 83 #define EF_M68HC11_MACH(mach) ((mach) & EF_M68HC11_MACH_MASK) 84 85 /* True if we can merge machines. A generic HC12 can work on any proc 86 but once we have specific code, merge is not possible. */ 87 #define EF_M68HC11_CAN_MERGE_MACH(mach1, mach2) \ 88 ((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \ 89 || (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC) \ 90 || (EF_M68HC11_MACH (mach2) == EF_M68HC11_GENERIC)) 91 92 #define EF_M68HC11_MERGE_MACH(mach1, mach2) \ 93 (((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \ 94 || (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC)) ? \ 95 EF_M68HC11_MACH (mach2) : EF_M68HC11_MACH (mach1)) 96 97 98 /* Special values for the st_other field in the symbol table. These 99 are used for 68HC12 to identify far functions (must be called with 100 'call' and returns with 'rtc'). */ 101 #define STO_M68HC12_FAR 0x80 102 103 /* Identify interrupt handlers. This is used by the debugger to 104 correctly compute the stack frame. */ 105 #define STO_M68HC12_INTERRUPT 0x40 106 107 #endif 108