1 /* ARC ELF support for BFD. 2 Copyright (C) 1995-2020 Free Software Foundation, Inc. 3 Contributed by Doug Evans, (dje@cygnus.com) 4 5 This file is part of BFD, the Binary File Descriptor library. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 /* This file holds definitions specific to the ARC ELF ABI. */ 23 24 #ifndef _ELF_ARC_H 25 #define _ELF_ARC_H 26 27 #include "elf/reloc-macros.h" 28 29 /* Relocations. */ 30 31 #define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \ 32 RELOC_NUMBER(R_##TYPE, VALUE) 33 34 START_RELOC_NUMBERS (elf_arc_reloc_type) 35 #include "arc-reloc.def" 36 END_RELOC_NUMBERS (R_ARC_max) 37 38 #undef ARC_RELOC_HOWTO 39 40 /* Processor specific flags for the ELF header e_flags field. */ 41 42 #define EF_ARC_MACH_MSK 0x000000ff 43 #define EF_ARC_OSABI_MSK 0x00000f00 44 #define EF_ARC_ALL_MSK (EF_ARC_MACH_MSK | EF_ARC_OSABI_MSK) 45 46 /* Various CPU types. These numbers are exposed in the ELF header flags 47 (e_flags field), and so must never change. */ 48 #define E_ARC_MACH_ARC600 0x00000002 49 #define E_ARC_MACH_ARC601 0x00000004 50 #define E_ARC_MACH_ARC700 0x00000003 51 #define EF_ARC_CPU_ARCV2EM 0x00000005 52 #define EF_ARC_CPU_ARCV2HS 0x00000006 53 54 /* ARC Linux specific ABIs. */ 55 #define E_ARC_OSABI_ORIG 0x00000000 /* MUST be 0 for back-compat. */ 56 #define E_ARC_OSABI_V2 0x00000200 57 #define E_ARC_OSABI_V3 0x00000300 58 #define E_ARC_OSABI_V4 0x00000400 59 #define E_ARC_OSABI_CURRENT E_ARC_OSABI_V4 60 /* Leave bits 0xf0 alone in case we ever have more than 16 cpu types. */ 61 62 /* File contains position independent code. */ 63 64 #define EF_ARC_PIC 0x00000100 65 66 /* Additional section types. */ 67 #define SHT_ARC_ATTRIBUTES 0x70000001 /* Section holds attributes. */ 68 69 /* ARC ABI object attributes. */ 70 enum { 71 /* 0-3 are generic. */ 72 Tag_ARC_PCS_config = 4, 73 Tag_ARC_CPU_base, 74 Tag_ARC_CPU_variation, 75 Tag_ARC_CPU_name, 76 Tag_ARC_ABI_rf16, 77 Tag_ARC_ABI_osver, 78 Tag_ARC_ABI_sda, 79 Tag_ARC_ABI_pic, 80 Tag_ARC_ABI_tls, 81 Tag_ARC_ABI_enumsize, 82 Tag_ARC_ABI_exceptions, 83 Tag_ARC_ABI_double_size, 84 Tag_ARC_ISA_config, 85 Tag_ARC_ISA_apex, 86 Tag_ARC_ISA_mpy_option, 87 Tag_ARC_ATR_version = 20 88 }; 89 90 /* Values for the Tag_ARC_cpu_base attribute. */ 91 #define TAG_CPU_NONE 0 92 #define TAG_CPU_ARC6xx 1 93 #define TAG_CPU_ARC7xx 2 94 #define TAG_CPU_ARCEM 3 95 #define TAG_CPU_ARCHS 4 96 97 #endif /* _ELF_ARC_H */ 98