Path: blob/main/contrib/llvm-project/libunwind/src/dwarf2.h
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//===----------------------------------------------------------------------===//1//2// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.3// See https://llvm.org/LICENSE.txt for license information.4// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception5//6//===----------------------------------------------------------------------===//789/*10These constants were taken from version 3 of the DWARF standard,11which is Copyright (c) 2005 Free Standards Group, and12Copyright (c) 1992, 1993 UNIX International, Inc.13*/1415#ifndef __DWARF2__16#define __DWARF2__1718// DWARF unwind instructions19enum {20DW_CFA_nop = 0x0,21DW_CFA_set_loc = 0x1,22DW_CFA_advance_loc1 = 0x2,23DW_CFA_advance_loc2 = 0x3,24DW_CFA_advance_loc4 = 0x4,25DW_CFA_offset_extended = 0x5,26DW_CFA_restore_extended = 0x6,27DW_CFA_undefined = 0x7,28DW_CFA_same_value = 0x8,29DW_CFA_register = 0x9,30DW_CFA_remember_state = 0xA,31DW_CFA_restore_state = 0xB,32DW_CFA_def_cfa = 0xC,33DW_CFA_def_cfa_register = 0xD,34DW_CFA_def_cfa_offset = 0xE,35DW_CFA_def_cfa_expression = 0xF,36DW_CFA_expression = 0x10,37DW_CFA_offset_extended_sf = 0x11,38DW_CFA_def_cfa_sf = 0x12,39DW_CFA_def_cfa_offset_sf = 0x13,40DW_CFA_val_offset = 0x14,41DW_CFA_val_offset_sf = 0x15,42DW_CFA_val_expression = 0x16,43DW_CFA_advance_loc = 0x40, // high 2 bits are 0x1, lower 6 bits are delta44DW_CFA_offset = 0x80, // high 2 bits are 0x2, lower 6 bits are register45DW_CFA_restore = 0xC0, // high 2 bits are 0x3, lower 6 bits are register4647// GNU extensions48DW_CFA_GNU_window_save = 0x2D,49DW_CFA_GNU_args_size = 0x2E,50DW_CFA_GNU_negative_offset_extended = 0x2F,5152// AARCH64 extensions53DW_CFA_AARCH64_negate_ra_state = 0x2D54};555657// FSF exception handling Pointer-Encoding constants58// Used in CFI augmentation by GCC59enum {60DW_EH_PE_ptr = 0x00,61DW_EH_PE_uleb128 = 0x01,62DW_EH_PE_udata2 = 0x02,63DW_EH_PE_udata4 = 0x03,64DW_EH_PE_udata8 = 0x04,65DW_EH_PE_signed = 0x08,66DW_EH_PE_sleb128 = 0x09,67DW_EH_PE_sdata2 = 0x0A,68DW_EH_PE_sdata4 = 0x0B,69DW_EH_PE_sdata8 = 0x0C,70DW_EH_PE_absptr = 0x00,71DW_EH_PE_pcrel = 0x10,72DW_EH_PE_textrel = 0x20,73DW_EH_PE_datarel = 0x30,74DW_EH_PE_funcrel = 0x40,75DW_EH_PE_aligned = 0x50,76DW_EH_PE_indirect = 0x80,77DW_EH_PE_omit = 0xFF78};798081// DWARF expressions82enum {83DW_OP_addr = 0x03, // constant address (size target specific)84DW_OP_deref = 0x06,85DW_OP_const1u = 0x08, // 1-byte constant86DW_OP_const1s = 0x09, // 1-byte constant87DW_OP_const2u = 0x0A, // 2-byte constant88DW_OP_const2s = 0x0B, // 2-byte constant89DW_OP_const4u = 0x0C, // 4-byte constant90DW_OP_const4s = 0x0D, // 4-byte constant91DW_OP_const8u = 0x0E, // 8-byte constant92DW_OP_const8s = 0x0F, // 8-byte constant93DW_OP_constu = 0x10, // ULEB128 constant94DW_OP_consts = 0x11, // SLEB128 constant95DW_OP_dup = 0x12,96DW_OP_drop = 0x13,97DW_OP_over = 0x14,98DW_OP_pick = 0x15, // 1-byte stack index99DW_OP_swap = 0x16,100DW_OP_rot = 0x17,101DW_OP_xderef = 0x18,102DW_OP_abs = 0x19,103DW_OP_and = 0x1A,104DW_OP_div = 0x1B,105DW_OP_minus = 0x1C,106DW_OP_mod = 0x1D,107DW_OP_mul = 0x1E,108DW_OP_neg = 0x1F,109DW_OP_not = 0x20,110DW_OP_or = 0x21,111DW_OP_plus = 0x22,112DW_OP_plus_uconst = 0x23, // ULEB128 addend113DW_OP_shl = 0x24,114DW_OP_shr = 0x25,115DW_OP_shra = 0x26,116DW_OP_xor = 0x27,117DW_OP_skip = 0x2F, // signed 2-byte constant118DW_OP_bra = 0x28, // signed 2-byte constant119DW_OP_eq = 0x29,120DW_OP_ge = 0x2A,121DW_OP_gt = 0x2B,122DW_OP_le = 0x2C,123DW_OP_lt = 0x2D,124DW_OP_ne = 0x2E,125DW_OP_lit0 = 0x30, // Literal 0126DW_OP_lit1 = 0x31, // Literal 1127DW_OP_lit2 = 0x32, // Literal 2128DW_OP_lit3 = 0x33, // Literal 3129DW_OP_lit4 = 0x34, // Literal 4130DW_OP_lit5 = 0x35, // Literal 5131DW_OP_lit6 = 0x36, // Literal 6132DW_OP_lit7 = 0x37, // Literal 7133DW_OP_lit8 = 0x38, // Literal 8134DW_OP_lit9 = 0x39, // Literal 9135DW_OP_lit10 = 0x3A, // Literal 10136DW_OP_lit11 = 0x3B, // Literal 11137DW_OP_lit12 = 0x3C, // Literal 12138DW_OP_lit13 = 0x3D, // Literal 13139DW_OP_lit14 = 0x3E, // Literal 14140DW_OP_lit15 = 0x3F, // Literal 15141DW_OP_lit16 = 0x40, // Literal 16142DW_OP_lit17 = 0x41, // Literal 17143DW_OP_lit18 = 0x42, // Literal 18144DW_OP_lit19 = 0x43, // Literal 19145DW_OP_lit20 = 0x44, // Literal 20146DW_OP_lit21 = 0x45, // Literal 21147DW_OP_lit22 = 0x46, // Literal 22148DW_OP_lit23 = 0x47, // Literal 23149DW_OP_lit24 = 0x48, // Literal 24150DW_OP_lit25 = 0x49, // Literal 25151DW_OP_lit26 = 0x4A, // Literal 26152DW_OP_lit27 = 0x4B, // Literal 27153DW_OP_lit28 = 0x4C, // Literal 28154DW_OP_lit29 = 0x4D, // Literal 29155DW_OP_lit30 = 0x4E, // Literal 30156DW_OP_lit31 = 0x4F, // Literal 31157DW_OP_reg0 = 0x50, // Contents of reg0158DW_OP_reg1 = 0x51, // Contents of reg1159DW_OP_reg2 = 0x52, // Contents of reg2160DW_OP_reg3 = 0x53, // Contents of reg3161DW_OP_reg4 = 0x54, // Contents of reg4162DW_OP_reg5 = 0x55, // Contents of reg5163DW_OP_reg6 = 0x56, // Contents of reg6164DW_OP_reg7 = 0x57, // Contents of reg7165DW_OP_reg8 = 0x58, // Contents of reg8166DW_OP_reg9 = 0x59, // Contents of reg9167DW_OP_reg10 = 0x5A, // Contents of reg10168DW_OP_reg11 = 0x5B, // Contents of reg11169DW_OP_reg12 = 0x5C, // Contents of reg12170DW_OP_reg13 = 0x5D, // Contents of reg13171DW_OP_reg14 = 0x5E, // Contents of reg14172DW_OP_reg15 = 0x5F, // Contents of reg15173DW_OP_reg16 = 0x60, // Contents of reg16174DW_OP_reg17 = 0x61, // Contents of reg17175DW_OP_reg18 = 0x62, // Contents of reg18176DW_OP_reg19 = 0x63, // Contents of reg19177DW_OP_reg20 = 0x64, // Contents of reg20178DW_OP_reg21 = 0x65, // Contents of reg21179DW_OP_reg22 = 0x66, // Contents of reg22180DW_OP_reg23 = 0x67, // Contents of reg23181DW_OP_reg24 = 0x68, // Contents of reg24182DW_OP_reg25 = 0x69, // Contents of reg25183DW_OP_reg26 = 0x6A, // Contents of reg26184DW_OP_reg27 = 0x6B, // Contents of reg27185DW_OP_reg28 = 0x6C, // Contents of reg28186DW_OP_reg29 = 0x6D, // Contents of reg29187DW_OP_reg30 = 0x6E, // Contents of reg30188DW_OP_reg31 = 0x6F, // Contents of reg31189DW_OP_breg0 = 0x70, // base register 0 + SLEB128 offset190DW_OP_breg1 = 0x71, // base register 1 + SLEB128 offset191DW_OP_breg2 = 0x72, // base register 2 + SLEB128 offset192DW_OP_breg3 = 0x73, // base register 3 + SLEB128 offset193DW_OP_breg4 = 0x74, // base register 4 + SLEB128 offset194DW_OP_breg5 = 0x75, // base register 5 + SLEB128 offset195DW_OP_breg6 = 0x76, // base register 6 + SLEB128 offset196DW_OP_breg7 = 0x77, // base register 7 + SLEB128 offset197DW_OP_breg8 = 0x78, // base register 8 + SLEB128 offset198DW_OP_breg9 = 0x79, // base register 9 + SLEB128 offset199DW_OP_breg10 = 0x7A, // base register 10 + SLEB128 offset200DW_OP_breg11 = 0x7B, // base register 11 + SLEB128 offset201DW_OP_breg12 = 0x7C, // base register 12 + SLEB128 offset202DW_OP_breg13 = 0x7D, // base register 13 + SLEB128 offset203DW_OP_breg14 = 0x7E, // base register 14 + SLEB128 offset204DW_OP_breg15 = 0x7F, // base register 15 + SLEB128 offset205DW_OP_breg16 = 0x80, // base register 16 + SLEB128 offset206DW_OP_breg17 = 0x81, // base register 17 + SLEB128 offset207DW_OP_breg18 = 0x82, // base register 18 + SLEB128 offset208DW_OP_breg19 = 0x83, // base register 19 + SLEB128 offset209DW_OP_breg20 = 0x84, // base register 20 + SLEB128 offset210DW_OP_breg21 = 0x85, // base register 21 + SLEB128 offset211DW_OP_breg22 = 0x86, // base register 22 + SLEB128 offset212DW_OP_breg23 = 0x87, // base register 23 + SLEB128 offset213DW_OP_breg24 = 0x88, // base register 24 + SLEB128 offset214DW_OP_breg25 = 0x89, // base register 25 + SLEB128 offset215DW_OP_breg26 = 0x8A, // base register 26 + SLEB128 offset216DW_OP_breg27 = 0x8B, // base register 27 + SLEB128 offset217DW_OP_breg28 = 0x8C, // base register 28 + SLEB128 offset218DW_OP_breg29 = 0x8D, // base register 29 + SLEB128 offset219DW_OP_breg30 = 0x8E, // base register 30 + SLEB128 offset220DW_OP_breg31 = 0x8F, // base register 31 + SLEB128 offset221DW_OP_regx = 0x90, // ULEB128 register222DW_OP_fbreg = 0x91, // SLEB128 offset223DW_OP_bregx = 0x92, // ULEB128 register followed by SLEB128 offset224DW_OP_piece = 0x93, // ULEB128 size of piece addressed225DW_OP_deref_size = 0x94, // 1-byte size of data retrieved226DW_OP_xderef_size = 0x95, // 1-byte size of data retrieved227DW_OP_nop = 0x96,228DW_OP_push_object_addres = 0x97,229DW_OP_call2 = 0x98, // 2-byte offset of DIE230DW_OP_call4 = 0x99, // 4-byte offset of DIE231DW_OP_call_ref = 0x9A, // 4- or 8-byte offset of DIE232DW_OP_lo_user = 0xE0,233DW_OP_APPLE_uninit = 0xF0,234DW_OP_hi_user = 0xFF235};236237238#endif239240241