| 1 | /* m68hc11 & m68hc12 ELF support for BFD. |
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| 2 | Copyright 1999, 2000, 2001, 2002, 2010, 2012 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of BFD, the Binary File Descriptor library. |
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| 5 | |
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| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 3 of the License, or |
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| 9 | (at your option) any later version. |
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| 10 | |
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| 11 | This program is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with this program; if not, write to the Free Software Foundation, |
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| 18 | Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
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| 19 | |
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| 20 | #ifndef _ELF_M68HC11_H |
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| 21 | #define _ELF_M68HC11_H |
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| 22 | |
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| 23 | #include "elf/reloc-macros.h" |
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| 24 | |
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| 25 | /* Relocation types. */ |
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| 26 | START_RELOC_NUMBERS (elf_m68hc11_reloc_type) |
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| 27 | RELOC_NUMBER (R_M68HC11_NONE, 0) |
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| 28 | RELOC_NUMBER (R_M68HC11_8, 1) |
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| 29 | RELOC_NUMBER (R_M68HC11_HI8, 2) |
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| 30 | RELOC_NUMBER (R_M68HC11_LO8, 3) |
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| 31 | RELOC_NUMBER (R_M68HC11_PCREL_8, 4) |
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| 32 | RELOC_NUMBER (R_M68HC11_16, 5) |
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| 33 | RELOC_NUMBER (R_M68HC11_32, 6) |
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| 34 | RELOC_NUMBER (R_M68HC11_3B, 7) |
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| 35 | RELOC_NUMBER (R_M68HC11_PCREL_16, 8) |
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| 36 | |
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| 37 | /* These are GNU extensions to enable C++ vtable garbage collection. */ |
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| 38 | RELOC_NUMBER (R_M68HC11_GNU_VTINHERIT, 9) |
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| 39 | RELOC_NUMBER (R_M68HC11_GNU_VTENTRY, 10) |
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| 40 | |
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| 41 | RELOC_NUMBER (R_M68HC11_24, 11) |
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| 42 | RELOC_NUMBER (R_M68HC11_LO16, 12) |
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| 43 | RELOC_NUMBER (R_M68HC11_PAGE, 13) |
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| 44 | |
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| 45 | RELOC_NUMBER (R_M68HC12_16B, 15) |
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| 46 | RELOC_NUMBER (R_M68HC12_PCREL_9, 16) |
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| 47 | RELOC_NUMBER (R_M68HC12_PCREL_10, 17) |
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| 48 | RELOC_NUMBER (R_M68HC12_HI8XG, 18) |
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| 49 | RELOC_NUMBER (R_M68HC12_LO8XG, 19) |
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| 50 | |
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| 51 | /* GNU extension for linker relaxation. |
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| 52 | Mark beginning of a jump instruction (any form). */ |
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| 53 | RELOC_NUMBER (R_M68HC11_RL_JUMP, 20) |
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| 54 | |
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| 55 | /* Mark beginning of Gcc relaxation group instruction. */ |
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| 56 | RELOC_NUMBER (R_M68HC11_RL_GROUP, 21) |
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| 57 | END_RELOC_NUMBERS (R_M68HC11_max) |
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| 58 | |
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| 59 | /* Processor specific flags for the ELF header e_flags field. */ |
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| 60 | |
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| 61 | /* ABI identification. */ |
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| 62 | #define EF_M68HC11_ABI 0x00000000F |
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| 63 | |
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| 64 | /* Integers are 32-bit long. */ |
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| 65 | #define E_M68HC11_I32 0x000000001 |
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| 66 | |
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| 67 | /* Doubles are 64-bit long. */ |
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| 68 | #define E_M68HC11_F64 0x000000002 |
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| 69 | |
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| 70 | /* Uses 68HC12 memory banks. */ |
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| 71 | #define E_M68HC12_BANKS 0x000000004 |
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| 72 | |
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| 73 | /* XGATE ram offsetting. */ |
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| 74 | #define E_M68HC11_XGATE_RAMOFFSET 0x000000100 |
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| 75 | |
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| 76 | /* Suppress warnings */ |
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| 77 | #define E_M68HC11_NO_BANK_WARNING 0x000000200 |
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| 78 | |
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| 79 | #define EF_M68HC11_MACH_MASK 0xF0 |
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| 80 | #define EF_M68HC11_GENERIC 0x00 /* Generic 68HC12/backward compatibility. */ |
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| 81 | #define EF_M68HC12_MACH 0x10 /* 68HC12 microcontroller. */ |
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| 82 | #define EF_M68HCS12_MACH 0x20 /* 68HCS12 microcontroller. */ |
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| 83 | #define EF_M68HC11_MACH(mach) ((mach) & EF_M68HC11_MACH_MASK) |
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| 84 | |
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| 85 | /* True if we can merge machines. A generic HC12 can work on any proc |
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| 86 | but once we have specific code, merge is not possible. */ |
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| 87 | #define EF_M68HC11_CAN_MERGE_MACH(mach1, mach2) \ |
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| 88 | ((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \ |
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| 89 | || (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC) \ |
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| 90 | || (EF_M68HC11_MACH (mach2) == EF_M68HC11_GENERIC)) |
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| 91 | |
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| 92 | #define EF_M68HC11_MERGE_MACH(mach1, mach2) \ |
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| 93 | (((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \ |
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| 94 | || (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC)) ? \ |
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| 95 | EF_M68HC11_MACH (mach2) : EF_M68HC11_MACH (mach1)) |
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| 96 | |
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| 97 | |
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| 98 | /* Special values for the st_other field in the symbol table. These |
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| 99 | are used for 68HC12 to identify far functions (must be called with |
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| 100 | 'call' and returns with 'rtc'). */ |
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| 101 | #define STO_M68HC12_FAR 0x80 |
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| 102 | |
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| 103 | /* Identify interrupt handlers. This is used by the debugger to |
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| 104 | correctly compute the stack frame. */ |
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| 105 | #define STO_M68HC12_INTERRUPT 0x40 |
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| 106 | |
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| 107 | #endif |
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