/* RL78 ELF support for BFD.
Copyright (C) 2008-2024 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_RL78_H
#define _ELF_RL78_H
#include "elf/reloc-macros.h"
/* Note that there are a few internal relocation types used by the
linker to do link-time relaxation. If you update this file, please
check elf32-rl78.c to see if any of the internal relocations need to
be, er, relocated. */
/* These are for fields in the instructions. */
RELOC_NUMBER (R_RL78_DIR16UL, 0x0c)
RELOC_NUMBER (R_RL78_DIR16UW, 0x0d)
RELOC_NUMBER (R_RL78_DIR8UL, 0x0e)
RELOC_NUMBER (R_RL78_DIR8UW, 0x0f)
RELOC_NUMBER (R_RL78_DIR32_REV, 0x10)
RELOC_NUMBER (R_RL78_DIR16_REV, 0x11)
RELOC_NUMBER (R_RL78_DIR3U_PCREL, 0x12)
/* These are extensions added by Red Hat. */
RELOC_NUMBER (R_RL78_RH_RELAX, 0x2d) /* Marks opcodes suitable for linker relaxation. */
RELOC_NUMBER (R_RL78_RH_SFR, 0x2e) /* SFR addresses - internal use only. */
RELOC_NUMBER (R_RL78_RH_SADDR, 0x2f) /* SADDR addresses - internal use only.. */
#define EF_RL78_CPU_RL78 0x00000079 /* FIXME: correct value? */
#define EF_RL78_CPU_MASK 0x0000007F /* specific cpu bits. */
#define EF_RL78_ALL_FLAGS (EF_RL78_CPU_MASK)
/* Values for the e_flags field in the ELF header. */
#define E_FLAG_RL78_64BIT_DOUBLES (1 << 0)
#define E_FLAG_RL78_DSP (1 << 1) /* Defined in the RL78 CPU Object file specification, but not explained. */
#define E_FLAG_RL78_CPU_MASK 0x0c
#define E_FLAG_RL78_ANY_CPU 0x00 /* CPU not specified. Assume no CPU specific code usage. */
#define E_FLAG_RL78_G10 0x04 /* CPU is missing register banks 1-3, so uses different ABI. */
#define E_FLAG_RL78_G13 0x08 /* CPU uses a peripheral for multiply/divide. */
#define E_FLAG_RL78_G14 0x0c /* CPU has multiply/divide instructions. */
/* These define the addend field of R_RL78_RH_RELAX relocations. */
#define RL78_RELAXA_MASK 0x000000f0 /* Mask for relax types */
#define RL78_RELAXA_BRA 0x00000010 /* Any type of branch (must be decoded). */
#define RL78_RELAXA_ADDR16 0x00000020 /* addr16->sfr/saddr opportunity */
#define RL78_RELAXA_RNUM 0x0000000f /* Number of associated relocations. */
/* These mark the place where alignment is requested, and the place where the filler bytes end. */
#define RL78_RELAXA_ALIGN 0x10000000 /* Start alignment; the remaining bits are the alignment value. */
#define RL78_RELAXA_ELIGN 0x20000000 /* End alignment; the remaining bits are the alignment value. */
#define RL78_RELAXA_ANUM 0x00ffffff /* Alignment amount, in bytes (i.e. .balign). */
