/* ARC ELF support for BFD.

   Copyright (C) 1995-2025 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 */