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/* RL78 ELF support for BFD.
Copyright (C) 2008-2014 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. */
/* Preliminary relocations. */
START_RELOC_NUMBERS (elf_rl78_reloc_type)
RELOC_NUMBER (R_RL78_NONE, 0x00)
/* These are for data, and are bi-endian. */
RELOC_NUMBER (R_RL78_DIR32, 0x01) /* Was: R_RL78_32. */
RELOC_NUMBER (R_RL78_DIR24S, 0x02) /* Was: R_RL78_24. */
RELOC_NUMBER (R_RL78_DIR16, 0x03)
RELOC_NUMBER (R_RL78_DIR16U, 0x04) /* Was: R_RL78_16_UNS. */
RELOC_NUMBER (R_RL78_DIR16S, 0x05) /* Was: R_RL78_16. */
RELOC_NUMBER (R_RL78_DIR8, 0x06)
RELOC_NUMBER (R_RL78_DIR8U, 0x07) /* Was: R_RL78_8_UNS. */
RELOC_NUMBER (R_RL78_DIR8S, 0x08) /* Was: R_RL78_8. */
/* Signed pc-relative values. */
RELOC_NUMBER (R_RL78_DIR24S_PCREL, 0x09) /* Was: R_RL78_24_PCREL. */
RELOC_NUMBER (R_RL78_DIR16S_PCREL, 0x0a) /* Was: R_RL78_16_PCREL. */
RELOC_NUMBER (R_RL78_DIR8S_PCREL, 0x0b) /* Was: R_RL78_8_PCREL. */
/* 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.. */
/* These are for complex relocs. */
RELOC_NUMBER (R_RL78_ABS32, 0x41)
RELOC_NUMBER (R_RL78_ABS24S, 0x42)
RELOC_NUMBER (R_RL78_ABS16, 0x43)
RELOC_NUMBER (R_RL78_ABS16U, 0x44)
RELOC_NUMBER (R_RL78_ABS16S, 0x45)
RELOC_NUMBER (R_RL78_ABS8, 0x46)
RELOC_NUMBER (R_RL78_ABS8U, 0x47)
RELOC_NUMBER (R_RL78_ABS8S, 0x48)
RELOC_NUMBER (R_RL78_ABS24S_PCREL, 0x49)
RELOC_NUMBER (R_RL78_ABS16S_PCREL, 0x4a)
RELOC_NUMBER (R_RL78_ABS8S_PCREL, 0x4b)
RELOC_NUMBER (R_RL78_ABS16UL, 0x4c)
RELOC_NUMBER (R_RL78_ABS16UW, 0x4d)
RELOC_NUMBER (R_RL78_ABS8UL, 0x4e)
RELOC_NUMBER (R_RL78_ABS8UW, 0x4f)
RELOC_NUMBER (R_RL78_ABS32_REV, 0x50)
RELOC_NUMBER (R_RL78_ABS16_REV, 0x51)
RELOC_NUMBER (R_RL78_SYM, 0x80)
RELOC_NUMBER (R_RL78_OPneg, 0x81)
RELOC_NUMBER (R_RL78_OPadd, 0x82)
RELOC_NUMBER (R_RL78_OPsub, 0x83)
RELOC_NUMBER (R_RL78_OPmul, 0x84)
RELOC_NUMBER (R_RL78_OPdiv, 0x85)
RELOC_NUMBER (R_RL78_OPshla, 0x86)
RELOC_NUMBER (R_RL78_OPshra, 0x87)
RELOC_NUMBER (R_RL78_OPsctsize, 0x88)
RELOC_NUMBER (R_RL78_OPscttop, 0x8d)
RELOC_NUMBER (R_RL78_OPand, 0x90)
RELOC_NUMBER (R_RL78_OPor, 0x91)
RELOC_NUMBER (R_RL78_OPxor, 0x92)
RELOC_NUMBER (R_RL78_OPnot, 0x93)
RELOC_NUMBER (R_RL78_OPmod, 0x94)
RELOC_NUMBER (R_RL78_OPromtop, 0x95)
RELOC_NUMBER (R_RL78_OPramtop, 0x96)
END_RELOC_NUMBERS (R_RL78_max)
#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_G10 (1 << 2) /* CPU is missing register banks 1-3, so uses different ABI. */
/* 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). */
#endif /* _ELF_RL78_H */
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