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/* ARC ELF support for BFD.
Copyright (C) 1995-2020 Free Software Foundation, Inc.
Contributed by Doug Evans, (dje@cygnus.com)
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. */
/* This file holds definitions specific to the ARC ELF ABI. */
#ifndef _ELF_ARC_H
#define _ELF_ARC_H
#include "elf/reloc-macros.h"
/* Relocations. */
#define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
RELOC_NUMBER(R_##TYPE, VALUE)
START_RELOC_NUMBERS (elf_arc_reloc_type)
#include "arc-reloc.def"
END_RELOC_NUMBERS (R_ARC_max)
#undef ARC_RELOC_HOWTO
/* Processor specific flags for the ELF header e_flags field. */
#define EF_ARC_MACH_MSK 0x000000ff
#define EF_ARC_OSABI_MSK 0x00000f00
#define EF_ARC_ALL_MSK (EF_ARC_MACH_MSK | EF_ARC_OSABI_MSK)
/* Various CPU types. These numbers are exposed in the ELF header flags
(e_flags field), and so must never change. */
#define E_ARC_MACH_ARC600 0x00000002
#define E_ARC_MACH_ARC601 0x00000004
#define E_ARC_MACH_ARC700 0x00000003
#define EF_ARC_CPU_ARCV2EM 0x00000005
#define EF_ARC_CPU_ARCV2HS 0x00000006
/* ARC Linux specific ABIs. */
#define E_ARC_OSABI_ORIG 0x00000000 /* MUST be 0 for back-compat. */
#define E_ARC_OSABI_V2 0x00000200
#define E_ARC_OSABI_V3 0x00000300
#define E_ARC_OSABI_V4 0x00000400
#define E_ARC_OSABI_CURRENT E_ARC_OSABI_V4
/* Leave bits 0xf0 alone in case we ever have more than 16 cpu types. */
/* File contains position independent code. */
#define EF_ARC_PIC 0x00000100
/* Additional section types. */
#define SHT_ARC_ATTRIBUTES 0x70000001 /* Section holds attributes. */
/* ARC ABI object attributes. */
enum {
/* 0-3 are generic. */
Tag_ARC_PCS_config = 4,
Tag_ARC_CPU_base,
Tag_ARC_CPU_variation,
Tag_ARC_CPU_name,
Tag_ARC_ABI_rf16,
Tag_ARC_ABI_osver,
Tag_ARC_ABI_sda,
Tag_ARC_ABI_pic,
Tag_ARC_ABI_tls,
Tag_ARC_ABI_enumsize,
Tag_ARC_ABI_exceptions,
Tag_ARC_ABI_double_size,
Tag_ARC_ISA_config,
Tag_ARC_ISA_apex,
Tag_ARC_ISA_mpy_option,
Tag_ARC_ATR_version = 20
};
/* Values for the Tag_ARC_cpu_base attribute. */
#define TAG_CPU_NONE 0
#define TAG_CPU_ARC6xx 1
#define TAG_CPU_ARC7xx 2
#define TAG_CPU_ARCEM 3
#define TAG_CPU_ARCHS 4
#endif /* _ELF_ARC_H */
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