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jeremybenn |
/* m68hc11 & m68hc12 ELF support for BFD.
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Copyright 1999, 2000, 2001, 2002, 2010 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifndef _ELF_M68HC11_H
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#define _ELF_M68HC11_H
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#include "elf/reloc-macros.h"
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/* Relocation types. */
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START_RELOC_NUMBERS (elf_m68hc11_reloc_type)
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RELOC_NUMBER (R_M68HC11_NONE, 0)
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RELOC_NUMBER (R_M68HC11_8, 1)
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RELOC_NUMBER (R_M68HC11_HI8, 2)
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RELOC_NUMBER (R_M68HC11_LO8, 3)
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RELOC_NUMBER (R_M68HC11_PCREL_8, 4)
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RELOC_NUMBER (R_M68HC11_16, 5)
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RELOC_NUMBER (R_M68HC11_32, 6)
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RELOC_NUMBER (R_M68HC11_3B, 7)
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RELOC_NUMBER (R_M68HC11_PCREL_16, 8)
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/* These are GNU extensions to enable C++ vtable garbage collection. */
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RELOC_NUMBER (R_M68HC11_GNU_VTINHERIT, 9)
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RELOC_NUMBER (R_M68HC11_GNU_VTENTRY, 10)
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RELOC_NUMBER (R_M68HC11_24, 11)
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RELOC_NUMBER (R_M68HC11_LO16, 12)
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RELOC_NUMBER (R_M68HC11_PAGE, 13)
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/* GNU extension for linker relaxation.
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Mark beginning of a jump instruction (any form). */
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RELOC_NUMBER (R_M68HC11_RL_JUMP, 20)
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/* Mark beginning of Gcc relaxation group instruction. */
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RELOC_NUMBER (R_M68HC11_RL_GROUP, 21)
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END_RELOC_NUMBERS (R_M68HC11_max)
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/* Processor specific flags for the ELF header e_flags field. */
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/* ABI identification. */
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#define EF_M68HC11_ABI 0x00000000F
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/* Integers are 32-bit long. */
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#define E_M68HC11_I32 0x000000001
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/* Doubles are 64-bit long. */
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#define E_M68HC11_F64 0x000000002
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/* Uses 68HC12 memory banks. */
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#define E_M68HC12_BANKS 0x000000004
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#define EF_M68HC11_MACH_MASK 0xF0
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#define EF_M68HC11_GENERIC 0x00 /* Generic 68HC12/backward compatibility. */
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#define EF_M68HC12_MACH 0x10 /* 68HC12 microcontroller. */
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#define EF_M68HCS12_MACH 0x20 /* 68HCS12 microcontroller. */
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#define EF_M68HC11_MACH(mach) ((mach) & EF_M68HC11_MACH_MASK)
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/* True if we can merge machines. A generic HC12 can work on any proc
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but once we have specific code, merge is not possible. */
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#define EF_M68HC11_CAN_MERGE_MACH(mach1, mach2) \
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((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \
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|| (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC) \
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|| (EF_M68HC11_MACH (mach2) == EF_M68HC11_GENERIC))
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#define EF_M68HC11_MERGE_MACH(mach1, mach2) \
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(((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \
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|| (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC)) ? \
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EF_M68HC11_MACH (mach2) : EF_M68HC11_MACH (mach1))
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/* Special values for the st_other field in the symbol table. These
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are used for 68HC12 to identify far functions (must be called with
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'call' and returns with 'rtc'). */
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#define STO_M68HC12_FAR 0x80
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/* Identify interrupt handlers. This is used by the debugger to
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correctly compute the stack frame. */
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#define STO_M68HC12_INTERRUPT 0x40
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#endif
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