/* m68hc11 & m68hc12 ELF support for BFD.
Copyright (C) 1999-2020 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _ELF_M68HC11_H
#define _ELF_M68HC11_H
#include "elf/reloc-macros.h"
/* Relocation types. */
START_RELOC_NUMBERS (elf_m68hc11_reloc_type)
RELOC_NUMBER (R_M68HC11_NONE, 0)
RELOC_NUMBER (R_M68HC11_8, 1)
RELOC_NUMBER (R_M68HC11_HI8, 2)
RELOC_NUMBER (R_M68HC11_LO8, 3)
RELOC_NUMBER (R_M68HC11_PCREL_8, 4)
RELOC_NUMBER (R_M68HC11_16, 5)
RELOC_NUMBER (R_M68HC11_32, 6)
RELOC_NUMBER (R_M68HC11_3B, 7)
RELOC_NUMBER (R_M68HC11_PCREL_16, 8)
/* These are GNU extensions to enable C++ vtable garbage collection. */
RELOC_NUMBER (R_M68HC11_GNU_VTINHERIT, 9)
RELOC_NUMBER (R_M68HC11_GNU_VTENTRY, 10)
RELOC_NUMBER (R_M68HC11_24, 11)
RELOC_NUMBER (R_M68HC11_LO16, 12)
RELOC_NUMBER (R_M68HC11_PAGE, 13)
RELOC_NUMBER (R_M68HC12_16B, 15)
RELOC_NUMBER (R_M68HC12_PCREL_9, 16)
RELOC_NUMBER (R_M68HC12_PCREL_10, 17)
RELOC_NUMBER (R_M68HC12_HI8XG, 18)
RELOC_NUMBER (R_M68HC12_LO8XG, 19)
/* GNU extension for linker relaxation.
Mark beginning of a jump instruction (any form). */
RELOC_NUMBER (R_M68HC11_RL_JUMP, 20)
/* Mark beginning of Gcc relaxation group instruction. */
RELOC_NUMBER (R_M68HC11_RL_GROUP, 21)
END_RELOC_NUMBERS (R_M68HC11_max)
/* Processor specific flags for the ELF header e_flags field. */
/* ABI identification. */
#define EF_M68HC11_ABI 0x00000000F
/* Integers are 32-bit long. */
#define E_M68HC11_I32 0x000000001
/* Doubles are 64-bit long. */
#define E_M68HC11_F64 0x000000002
/* Uses 68HC12 memory banks. */
#define E_M68HC12_BANKS 0x000000004
/* XGATE ram offsetting. */
#define E_M68HC11_XGATE_RAMOFFSET 0x000000100
/* Suppress warnings */
#define E_M68HC11_NO_BANK_WARNING 0x000000200
#define EF_M68HC11_MACH_MASK 0xF0
#define EF_M68HC11_GENERIC 0x00 /* Generic 68HC12/backward compatibility. */
#define EF_M68HC12_MACH 0x10 /* 68HC12 microcontroller. */
#define EF_M68HCS12_MACH 0x20 /* 68HCS12 microcontroller. */
#define EF_M68HC11_MACH(mach) ((mach) & EF_M68HC11_MACH_MASK)
/* True if we can merge machines. A generic HC12 can work on any proc
but once we have specific code, merge is not possible. */
#define EF_M68HC11_CAN_MERGE_MACH(mach1, mach2) \
((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \
|| (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC) \
|| (EF_M68HC11_MACH (mach2) == EF_M68HC11_GENERIC))
#define EF_M68HC11_MERGE_MACH(mach1, mach2) \
(((EF_M68HC11_MACH (mach1) == EF_M68HC11_MACH (mach2)) \
|| (EF_M68HC11_MACH (mach1) == EF_M68HC11_GENERIC)) ? \
EF_M68HC11_MACH (mach2) : EF_M68HC11_MACH (mach1))
/* Special values for the st_other field in the symbol table. These
are used for 68HC12 to identify far functions (must be called with
'call' and returns with 'rtc'). */
#define STO_M68HC12_FAR 0x80
/* Identify interrupt handlers. This is used by the debugger to
correctly compute the stack frame. */
#define STO_M68HC12_INTERRUPT 0x40
#endif