| 1 | /* m68hc11 & m68hc12 ELF support for BFD.
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| 2 | Copyright 1999, 2000, 2001, 2002 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 | /* GNU extension for linker relaxation.
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| 46 | Mark beginning of a jump instruction (any form). */
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| 47 | RELOC_NUMBER (R_M68HC11_RL_JUMP, 20)
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| 48 |
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| 49 | /* Mark beginning of Gcc relaxation group instruction. */
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| 50 | RELOC_NUMBER (R_M68HC11_RL_GROUP, 21)
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| 51 | END_RELOC_NUMBERS (R_M68HC11_max)
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| 52 |
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| 53 | /* Processor specific flags for the ELF header e_flags field. */
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| 54 |
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| 55 | /* ABI identification. */
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| 56 | #define EF_M68HC11_ABI 0x00000000F
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| 57 |
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| 58 | /* Integers are 32-bit long. */
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| 59 | #define E_M68HC11_I32 0x000000001
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| 60 |
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| 61 | /* Doubles are 64-bit long. */
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| 62 | #define E_M68HC11_F64 0x000000002
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| 63 |
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| 64 | /* Uses 68HC12 memory banks. */
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| 65 | #define E_M68HC12_BANKS 0x000000004
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| 66 |
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| 67 | #define EF_M68HC11_MACH_MASK 0xF0
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| 68 | #define EF_M68HC11_GENERIC 0x00 /* Generic 68HC12/backward compatibility. */
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| 69 | #define EF_M68HC12_MACH 0x10 /* 68HC12 microcontroller. */
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| 70 | #define EF_M68HCS12_MACH 0x20 /* 68HCS12 microcontroller. */
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| 71 | #define EF_M68HC11_MACH(mach) ((mach) & EF_M68HC11_MACH_MASK)
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| 72 |
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| 73 | /* True if we can merge machines. A generic HC12 can work on any proc
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| 74 | but once we have specific code, merge is not possible. */
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| 75 | #define EF_M68HC11_CAN_MERGE_MACH(mach1, mach2) \
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| 76 | ((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \
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| 77 | || (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC) \
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| 78 | || (EF_M68HC11_MACH (mach2) == EF_M68HC11_GENERIC))
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| 79 |
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| 80 | #define EF_M68HC11_MERGE_MACH(mach1, mach2) \
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| 81 | (((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \
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| 82 | || (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC)) ? \
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| 83 | EF_M68HC11_MACH (mach2) : EF_M68HC11_MACH (mach1))
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| 84 |
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| 85 | |
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| 86 |
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| 87 | /* Special values for the st_other field in the symbol table. These
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| 88 | are used for 68HC12 to identify far functions (must be called with
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| 89 | 'call' and returns with 'rtc'). */
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| 90 | #define STO_M68HC12_FAR 0x80
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| 91 |
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| 92 | /* Identify interrupt handlers. This is used by the debugger to
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| 93 | correctly compute the stack frame. */
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| 94 | #define STO_M68HC12_INTERRUPT 0x40
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| 95 |
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| 96 | #endif
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