1 //===------------------------------- dwarf2.h -----------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 10 /* 11 These constants were taken from version 3 of the DWARF standard, 12 which is Copyright (c) 2005 Free Standards Group, and 13 Copyright (c) 1992, 1993 UNIX International, Inc. 14 */ 15 16 #ifndef __DWARF2__ 17 #define __DWARF2__ 18 19 // DWARF unwind instructions 20 enum { 21 DW_CFA_nop = 0x0, 22 DW_CFA_set_loc = 0x1, 23 DW_CFA_advance_loc1 = 0x2, 24 DW_CFA_advance_loc2 = 0x3, 25 DW_CFA_advance_loc4 = 0x4, 26 DW_CFA_offset_extended = 0x5, 27 DW_CFA_restore_extended = 0x6, 28 DW_CFA_undefined = 0x7, 29 DW_CFA_same_value = 0x8, 30 DW_CFA_register = 0x9, 31 DW_CFA_remember_state = 0xA, 32 DW_CFA_restore_state = 0xB, 33 DW_CFA_def_cfa = 0xC, 34 DW_CFA_def_cfa_register = 0xD, 35 DW_CFA_def_cfa_offset = 0xE, 36 DW_CFA_def_cfa_expression = 0xF, 37 DW_CFA_expression = 0x10, 38 DW_CFA_offset_extended_sf = 0x11, 39 DW_CFA_def_cfa_sf = 0x12, 40 DW_CFA_def_cfa_offset_sf = 0x13, 41 DW_CFA_val_offset = 0x14, 42 DW_CFA_val_offset_sf = 0x15, 43 DW_CFA_val_expression = 0x16, 44 DW_CFA_advance_loc = 0x40, // high 2 bits are 0x1, lower 6 bits are delta 45 DW_CFA_offset = 0x80, // high 2 bits are 0x2, lower 6 bits are register 46 DW_CFA_restore = 0xC0, // high 2 bits are 0x3, lower 6 bits are register 47 48 // GNU extensions 49 DW_CFA_GNU_window_save = 0x2D, 50 DW_CFA_GNU_args_size = 0x2E, 51 DW_CFA_GNU_negative_offset_extended = 0x2F, 52 53 // AARCH64 extensions 54 DW_CFA_AARCH64_negate_ra_state = 0x2D 55 }; 56 57 58 // FSF exception handling Pointer-Encoding constants 59 // Used in CFI augmentation by GCC 60 enum { 61 DW_EH_PE_ptr = 0x00, 62 DW_EH_PE_uleb128 = 0x01, 63 DW_EH_PE_udata2 = 0x02, 64 DW_EH_PE_udata4 = 0x03, 65 DW_EH_PE_udata8 = 0x04, 66 DW_EH_PE_signed = 0x08, 67 DW_EH_PE_sleb128 = 0x09, 68 DW_EH_PE_sdata2 = 0x0A, 69 DW_EH_PE_sdata4 = 0x0B, 70 DW_EH_PE_sdata8 = 0x0C, 71 DW_EH_PE_absptr = 0x00, 72 DW_EH_PE_pcrel = 0x10, 73 DW_EH_PE_textrel = 0x20, 74 DW_EH_PE_datarel = 0x30, 75 DW_EH_PE_funcrel = 0x40, 76 DW_EH_PE_aligned = 0x50, 77 DW_EH_PE_indirect = 0x80, 78 DW_EH_PE_omit = 0xFF 79 }; 80 81 82 // DWARF expressions 83 enum { 84 DW_OP_addr = 0x03, // constant address (size target specific) 85 DW_OP_deref = 0x06, 86 DW_OP_const1u = 0x08, // 1-byte constant 87 DW_OP_const1s = 0x09, // 1-byte constant 88 DW_OP_const2u = 0x0A, // 2-byte constant 89 DW_OP_const2s = 0x0B, // 2-byte constant 90 DW_OP_const4u = 0x0C, // 4-byte constant 91 DW_OP_const4s = 0x0D, // 4-byte constant 92 DW_OP_const8u = 0x0E, // 8-byte constant 93 DW_OP_const8s = 0x0F, // 8-byte constant 94 DW_OP_constu = 0x10, // ULEB128 constant 95 DW_OP_consts = 0x11, // SLEB128 constant 96 DW_OP_dup = 0x12, 97 DW_OP_drop = 0x13, 98 DW_OP_over = 0x14, 99 DW_OP_pick = 0x15, // 1-byte stack index 100 DW_OP_swap = 0x16, 101 DW_OP_rot = 0x17, 102 DW_OP_xderef = 0x18, 103 DW_OP_abs = 0x19, 104 DW_OP_and = 0x1A, 105 DW_OP_div = 0x1B, 106 DW_OP_minus = 0x1C, 107 DW_OP_mod = 0x1D, 108 DW_OP_mul = 0x1E, 109 DW_OP_neg = 0x1F, 110 DW_OP_not = 0x20, 111 DW_OP_or = 0x21, 112 DW_OP_plus = 0x22, 113 DW_OP_plus_uconst = 0x23, // ULEB128 addend 114 DW_OP_shl = 0x24, 115 DW_OP_shr = 0x25, 116 DW_OP_shra = 0x26, 117 DW_OP_xor = 0x27, 118 DW_OP_skip = 0x2F, // signed 2-byte constant 119 DW_OP_bra = 0x28, // signed 2-byte constant 120 DW_OP_eq = 0x29, 121 DW_OP_ge = 0x2A, 122 DW_OP_gt = 0x2B, 123 DW_OP_le = 0x2C, 124 DW_OP_lt = 0x2D, 125 DW_OP_ne = 0x2E, 126 DW_OP_lit0 = 0x30, // Literal 0 127 DW_OP_lit1 = 0x31, // Literal 1 128 DW_OP_lit2 = 0x32, // Literal 2 129 DW_OP_lit3 = 0x33, // Literal 3 130 DW_OP_lit4 = 0x34, // Literal 4 131 DW_OP_lit5 = 0x35, // Literal 5 132 DW_OP_lit6 = 0x36, // Literal 6 133 DW_OP_lit7 = 0x37, // Literal 7 134 DW_OP_lit8 = 0x38, // Literal 8 135 DW_OP_lit9 = 0x39, // Literal 9 136 DW_OP_lit10 = 0x3A, // Literal 10 137 DW_OP_lit11 = 0x3B, // Literal 11 138 DW_OP_lit12 = 0x3C, // Literal 12 139 DW_OP_lit13 = 0x3D, // Literal 13 140 DW_OP_lit14 = 0x3E, // Literal 14 141 DW_OP_lit15 = 0x3F, // Literal 15 142 DW_OP_lit16 = 0x40, // Literal 16 143 DW_OP_lit17 = 0x41, // Literal 17 144 DW_OP_lit18 = 0x42, // Literal 18 145 DW_OP_lit19 = 0x43, // Literal 19 146 DW_OP_lit20 = 0x44, // Literal 20 147 DW_OP_lit21 = 0x45, // Literal 21 148 DW_OP_lit22 = 0x46, // Literal 22 149 DW_OP_lit23 = 0x47, // Literal 23 150 DW_OP_lit24 = 0x48, // Literal 24 151 DW_OP_lit25 = 0x49, // Literal 25 152 DW_OP_lit26 = 0x4A, // Literal 26 153 DW_OP_lit27 = 0x4B, // Literal 27 154 DW_OP_lit28 = 0x4C, // Literal 28 155 DW_OP_lit29 = 0x4D, // Literal 29 156 DW_OP_lit30 = 0x4E, // Literal 30 157 DW_OP_lit31 = 0x4F, // Literal 31 158 DW_OP_reg0 = 0x50, // Contents of reg0 159 DW_OP_reg1 = 0x51, // Contents of reg1 160 DW_OP_reg2 = 0x52, // Contents of reg2 161 DW_OP_reg3 = 0x53, // Contents of reg3 162 DW_OP_reg4 = 0x54, // Contents of reg4 163 DW_OP_reg5 = 0x55, // Contents of reg5 164 DW_OP_reg6 = 0x56, // Contents of reg6 165 DW_OP_reg7 = 0x57, // Contents of reg7 166 DW_OP_reg8 = 0x58, // Contents of reg8 167 DW_OP_reg9 = 0x59, // Contents of reg9 168 DW_OP_reg10 = 0x5A, // Contents of reg10 169 DW_OP_reg11 = 0x5B, // Contents of reg11 170 DW_OP_reg12 = 0x5C, // Contents of reg12 171 DW_OP_reg13 = 0x5D, // Contents of reg13 172 DW_OP_reg14 = 0x5E, // Contents of reg14 173 DW_OP_reg15 = 0x5F, // Contents of reg15 174 DW_OP_reg16 = 0x60, // Contents of reg16 175 DW_OP_reg17 = 0x61, // Contents of reg17 176 DW_OP_reg18 = 0x62, // Contents of reg18 177 DW_OP_reg19 = 0x63, // Contents of reg19 178 DW_OP_reg20 = 0x64, // Contents of reg20 179 DW_OP_reg21 = 0x65, // Contents of reg21 180 DW_OP_reg22 = 0x66, // Contents of reg22 181 DW_OP_reg23 = 0x67, // Contents of reg23 182 DW_OP_reg24 = 0x68, // Contents of reg24 183 DW_OP_reg25 = 0x69, // Contents of reg25 184 DW_OP_reg26 = 0x6A, // Contents of reg26 185 DW_OP_reg27 = 0x6B, // Contents of reg27 186 DW_OP_reg28 = 0x6C, // Contents of reg28 187 DW_OP_reg29 = 0x6D, // Contents of reg29 188 DW_OP_reg30 = 0x6E, // Contents of reg30 189 DW_OP_reg31 = 0x6F, // Contents of reg31 190 DW_OP_breg0 = 0x70, // base register 0 + SLEB128 offset 191 DW_OP_breg1 = 0x71, // base register 1 + SLEB128 offset 192 DW_OP_breg2 = 0x72, // base register 2 + SLEB128 offset 193 DW_OP_breg3 = 0x73, // base register 3 + SLEB128 offset 194 DW_OP_breg4 = 0x74, // base register 4 + SLEB128 offset 195 DW_OP_breg5 = 0x75, // base register 5 + SLEB128 offset 196 DW_OP_breg6 = 0x76, // base register 6 + SLEB128 offset 197 DW_OP_breg7 = 0x77, // base register 7 + SLEB128 offset 198 DW_OP_breg8 = 0x78, // base register 8 + SLEB128 offset 199 DW_OP_breg9 = 0x79, // base register 9 + SLEB128 offset 200 DW_OP_breg10 = 0x7A, // base register 10 + SLEB128 offset 201 DW_OP_breg11 = 0x7B, // base register 11 + SLEB128 offset 202 DW_OP_breg12 = 0x7C, // base register 12 + SLEB128 offset 203 DW_OP_breg13 = 0x7D, // base register 13 + SLEB128 offset 204 DW_OP_breg14 = 0x7E, // base register 14 + SLEB128 offset 205 DW_OP_breg15 = 0x7F, // base register 15 + SLEB128 offset 206 DW_OP_breg16 = 0x80, // base register 16 + SLEB128 offset 207 DW_OP_breg17 = 0x81, // base register 17 + SLEB128 offset 208 DW_OP_breg18 = 0x82, // base register 18 + SLEB128 offset 209 DW_OP_breg19 = 0x83, // base register 19 + SLEB128 offset 210 DW_OP_breg20 = 0x84, // base register 20 + SLEB128 offset 211 DW_OP_breg21 = 0x85, // base register 21 + SLEB128 offset 212 DW_OP_breg22 = 0x86, // base register 22 + SLEB128 offset 213 DW_OP_breg23 = 0x87, // base register 23 + SLEB128 offset 214 DW_OP_breg24 = 0x88, // base register 24 + SLEB128 offset 215 DW_OP_breg25 = 0x89, // base register 25 + SLEB128 offset 216 DW_OP_breg26 = 0x8A, // base register 26 + SLEB128 offset 217 DW_OP_breg27 = 0x8B, // base register 27 + SLEB128 offset 218 DW_OP_breg28 = 0x8C, // base register 28 + SLEB128 offset 219 DW_OP_breg29 = 0x8D, // base register 29 + SLEB128 offset 220 DW_OP_breg30 = 0x8E, // base register 30 + SLEB128 offset 221 DW_OP_breg31 = 0x8F, // base register 31 + SLEB128 offset 222 DW_OP_regx = 0x90, // ULEB128 register 223 DW_OP_fbreg = 0x91, // SLEB128 offset 224 DW_OP_bregx = 0x92, // ULEB128 register followed by SLEB128 offset 225 DW_OP_piece = 0x93, // ULEB128 size of piece addressed 226 DW_OP_deref_size = 0x94, // 1-byte size of data retrieved 227 DW_OP_xderef_size = 0x95, // 1-byte size of data retrieved 228 DW_OP_nop = 0x96, 229 DW_OP_push_object_addres = 0x97, 230 DW_OP_call2 = 0x98, // 2-byte offset of DIE 231 DW_OP_call4 = 0x99, // 4-byte offset of DIE 232 DW_OP_call_ref = 0x9A, // 4- or 8-byte offset of DIE 233 DW_OP_lo_user = 0xE0, 234 DW_OP_APPLE_uninit = 0xF0, 235 DW_OP_hi_user = 0xFF 236 }; 237 238 239 #endif 240