1/* TI C6X ELF support for BFD. 2 Copyright (C) 2010-2022 Free Software Foundation, Inc. 3 4 This file is part of BFD, the Binary File Descriptor library. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 19 MA 02110-1301, USA. */ 20 21#ifndef _ELF_TIC6X_H 22#define _ELF_TIC6X_H 23 24#include "elf/reloc-macros.h" 25 26/* Relocation types. */ 27START_RELOC_NUMBERS (elf_tic6x_reloc_type) 28 RELOC_NUMBER (R_C6000_NONE, 0) 29 RELOC_NUMBER (R_C6000_ABS32, 1) 30 RELOC_NUMBER (R_C6000_ABS16, 2) 31 RELOC_NUMBER (R_C6000_ABS8, 3) 32 RELOC_NUMBER (R_C6000_PCR_S21, 4) 33 RELOC_NUMBER (R_C6000_PCR_S12, 5) 34 RELOC_NUMBER (R_C6000_PCR_S10, 6) 35 RELOC_NUMBER (R_C6000_PCR_S7, 7) 36 RELOC_NUMBER (R_C6000_ABS_S16, 8) 37 RELOC_NUMBER (R_C6000_ABS_L16, 9) 38 RELOC_NUMBER (R_C6000_ABS_H16, 10) 39 RELOC_NUMBER (R_C6000_SBR_U15_B, 11) 40 RELOC_NUMBER (R_C6000_SBR_U15_H, 12) 41 RELOC_NUMBER (R_C6000_SBR_U15_W, 13) 42 RELOC_NUMBER (R_C6000_SBR_S16, 14) 43 RELOC_NUMBER (R_C6000_SBR_L16_B, 15) 44 RELOC_NUMBER (R_C6000_SBR_L16_H, 16) 45 RELOC_NUMBER (R_C6000_SBR_L16_W, 17) 46 RELOC_NUMBER (R_C6000_SBR_H16_B, 18) 47 RELOC_NUMBER (R_C6000_SBR_H16_H, 19) 48 RELOC_NUMBER (R_C6000_SBR_H16_W, 20) 49 RELOC_NUMBER (R_C6000_SBR_GOT_U15_W, 21) 50 RELOC_NUMBER (R_C6000_SBR_GOT_L16_W, 22) 51 RELOC_NUMBER (R_C6000_SBR_GOT_H16_W, 23) 52 RELOC_NUMBER (R_C6000_DSBT_INDEX, 24) 53 RELOC_NUMBER (R_C6000_PREL31, 25) 54 RELOC_NUMBER (R_C6000_COPY, 26) 55 RELOC_NUMBER (R_C6000_JUMP_SLOT, 27) 56 RELOC_NUMBER (R_C6000_EHTYPE, 28) 57 RELOC_NUMBER (R_C6000_PCR_H16, 29) 58 RELOC_NUMBER (R_C6000_PCR_L16, 30) 59 RELOC_NUMBER (R_C6000_ALIGN, 253) 60 RELOC_NUMBER (R_C6000_FPHEAD, 254) 61 RELOC_NUMBER (R_C6000_NOCMP, 255) 62END_RELOC_NUMBERS (R_TIC6X_max) 63 64/* Processor-specific flags. */ 65 66/* File contains static relocation information. */ 67#define EF_C6000_REL 0x1 68 69/* Processor-specific section types. */ 70 71/* Unwind function table for stack unwinding. */ 72#define SHT_C6000_UNWIND 0x70000001 73 74/* DLL dynamic linking pre-emption map. */ 75#define SHT_C6000_PREEMPTMAP 0x70000002 76 77/* Object file compatibility attributes. */ 78#define SHT_C6000_ATTRIBUTES 0x70000003 79 80/* Intermediate code for link-time optimization. */ 81#define SHT_TI_ICODE 0x7F000000 82 83/* Symbolic cross reference information. */ 84#define SHT_TI_XREF 0x7F000001 85 86/* Reserved. */ 87#define SHT_TI_HANDLER 0x7F000002 88 89/* Compressed data for initializing C variables. */ 90#define SHT_TI_INITINFO 0x7F000003 91 92/* Extended program header attributes. */ 93#define SHT_TI_PHATTRS 0x7F000004 94 95/* Processor specific section indices. These sections do not actually 96 exist. Symbols with a st_shndx field corresponding to one of these 97 values have a special meaning. */ 98 99/* Small data area common symbol. */ 100#define SHN_TIC6X_SCOMMON SHN_LORESERVE 101 102/* Processor-specific segment types. */ 103 104/* Extended Segment Attributes. */ 105#define PT_C6000_PHATTR 0x70000000 106 107/* Processor-specific dynamic tags. */ 108 109/* Undocumented. */ 110#define DT_C6000_GSYM_OFFSET 0x6000000D 111 112/* Undocumented. */ 113#define DT_C6000_GSTR_OFFSET 0x6000000F 114 115/* Statically linked base address of data segment. */ 116#define DT_C6000_DSBT_BASE 0x70000000 117 118/* Number of entries in this module's DSBT. */ 119#define DT_C6000_DSBT_SIZE 0x70000001 120 121/* Undocumented. */ 122#define DT_C6000_PREEMPTMAP 0x70000002 123 124/* The hard-coded DSBT index for this module, if any. */ 125#define DT_C6000_DSBT_INDEX 0x70000003 126 127/* Extended program header attributes. */ 128 129/* Terminate a segment. */ 130#define PHA_NULL 0x0 131 132/* Segment's address bound to the final address. */ 133#define PHA_BOUND 0x1 134 135/* Segment cannot be further relocated. */ 136#define PHA_READONLY 0x2 137 138/* Build attributes. */ 139enum 140 { 141#define TAG(tag, value) tag = value, 142#include "elf/tic6x-attrs.h" 143#undef TAG 144 Tag_C6XABI_last 145 }; 146 147/* Values for Tag_ISA. GNU-specific names; the ABI does not specify 148 names for these values. */ 149enum 150 { 151 C6XABI_Tag_ISA_none = 0, 152 C6XABI_Tag_ISA_C62X = 1, 153 C6XABI_Tag_ISA_C67X = 3, 154 C6XABI_Tag_ISA_C67XP = 4, 155 C6XABI_Tag_ISA_C64X = 6, 156 C6XABI_Tag_ISA_C64XP = 7, 157 C6XABI_Tag_ISA_C674X = 8 158 }; 159 160/* Special section names. */ 161#define ELF_STRING_C6000_unwind ".c6xabi.exidx" 162#define ELF_STRING_C6000_unwind_info ".c6xabi.extab" 163#define ELF_STRING_C6000_unwind_once ".gnu.linkonce.c6xabi.exidx." 164#define ELF_STRING_C6000_unwind_info_once ".gnu.linkonce.c6xabi.extab." 165 166#endif /* _ELF_TIC6X_H */ 167