m68hc11.h revision 302408
1/* m68hc11 & m68hc12 ELF support for BFD. 2 Copyright 1999, 2000, 2001, 2002 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 2 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. */ 26START_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 /* GNU extension for linker relaxation. 46 Mark beginning of a jump instruction (any form). */ 47 RELOC_NUMBER (R_M68HC11_RL_JUMP, 20) 48 49 /* Mark beginning of Gcc relaxation group instruction. */ 50 RELOC_NUMBER (R_M68HC11_RL_GROUP, 21) 51END_RELOC_NUMBERS (R_M68HC11_max) 52 53/* Processor specific flags for the ELF header e_flags field. */ 54 55/* ABI identification. */ 56#define EF_M68HC11_ABI 0x00000000F 57 58/* Integers are 32-bit long. */ 59#define E_M68HC11_I32 0x000000001 60 61/* Doubles are 64-bit long. */ 62#define E_M68HC11_F64 0x000000002 63 64/* Uses 68HC12 memory banks. */ 65#define E_M68HC12_BANKS 0x000000004 66 67#define EF_M68HC11_MACH_MASK 0xF0 68#define EF_M68HC11_GENERIC 0x00 /* Generic 68HC12/backward compatibility. */ 69#define EF_M68HC12_MACH 0x10 /* 68HC12 microcontroller. */ 70#define EF_M68HCS12_MACH 0x20 /* 68HCS12 microcontroller. */ 71#define EF_M68HC11_MACH(mach) ((mach) & EF_M68HC11_MACH_MASK) 72 73/* True if we can merge machines. A generic HC12 can work on any proc 74 but once we have specific code, merge is not possible. */ 75#define EF_M68HC11_CAN_MERGE_MACH(mach1, mach2) \ 76 ((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \ 77 || (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC) \ 78 || (EF_M68HC11_MACH (mach2) == EF_M68HC11_GENERIC)) 79 80#define EF_M68HC11_MERGE_MACH(mach1, mach2) \ 81 (((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \ 82 || (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC)) ? \ 83 EF_M68HC11_MACH (mach2) : EF_M68HC11_MACH (mach1)) 84 85 86/* Special values for the st_other field in the symbol table. These 87 are used for 68HC12 to identify far functions (must be called with 88 'call' and returns with 'rtc'). */ 89#define STO_M68HC12_FAR 0x80 90 91/* Identify interrupt handlers. This is used by the debugger to 92 correctly compute the stack frame. */ 93#define STO_M68HC12_INTERRUPT 0x40 94 95#endif 96