dwarf.h revision a9dce3c06e6ffcb83957e734d960505415118f00
1eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm/* libunwind - a platform-independent unwind library 2f9b7af51ed3e2facd519a9bfd243ea367a242d35hp.com!davidm Copyright (c) 2003-2005 Hewlett-Packard Development Company, L.P. 3eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm Contributed by David Mosberger-Tang <davidm@hpl.hp.com> 4eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 5eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmThis file is part of libunwind. 6eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 7eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmPermission is hereby granted, free of charge, to any person obtaining 8eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidma copy of this software and associated documentation files (the 9eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm"Software"), to deal in the Software without restriction, including 10eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmwithout limitation the rights to use, copy, modify, merge, publish, 11eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmdistribute, sublicense, and/or sell copies of the Software, and to 12eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmpermit persons to whom the Software is furnished to do so, subject to 13eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmthe following conditions: 14eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 15eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmThe above copyright notice and this permission notice shall be 16eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmincluded in all copies or substantial portions of the Software. 17eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 18eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmNONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 22eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmLIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmOF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmWITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 25eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 26eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#ifndef dwarf_h 27eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_h 28eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 29be02d9ac0d97879fc9b75a9067fa6480bfb588acArun Sharma#ifdef HAVE_CONFIG_H 30b3f25f65af04014385ebc4aee8d7d993cb3c0ca8David Mosberger-Tang#include <config.h> 31be02d9ac0d97879fc9b75a9067fa6480bfb588acArun Sharma#endif 32be02d9ac0d97879fc9b75a9067fa6480bfb588acArun Sharma 33be02d9ac0d97879fc9b75a9067fa6480bfb588acArun Sharma#ifdef HAVE_ATOMIC_OPS_H 34be02d9ac0d97879fc9b75a9067fa6480bfb588acArun Sharma# include <atomic_ops.h> 35be02d9ac0d97879fc9b75a9067fa6480bfb588acArun Sharma#endif 36be02d9ac0d97879fc9b75a9067fa6480bfb588acArun Sharma 37f9b7af51ed3e2facd519a9bfd243ea367a242d35hp.com!davidm#include <libunwind.h> 38eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 39eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmstruct dwarf_cursor; /* forward-declaration */ 40eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 41eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#include "dwarf-config.h" 42eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 43eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm/* DWARF expression opcodes. */ 44eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 45eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmtypedef enum 46eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm { 47eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_addr = 0x03, 48eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_deref = 0x06, 49eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_const1u = 0x08, 50eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_const1s = 0x09, 51eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_const2u = 0x0a, 52eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_const2s = 0x0b, 53eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_const4u = 0x0c, 54eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_const4s = 0x0d, 55eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_const8u = 0x0e, 56eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_const8s = 0x0f, 57eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_constu = 0x10, 58eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_consts = 0x11, 59eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_dup = 0x12, 60eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_drop = 0x13, 61eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_over = 0x14, 62eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_pick = 0x15, 63eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_swap = 0x16, 64eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_rot = 0x17, 65eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_xderef = 0x18, 66eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_abs = 0x19, 67eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_and = 0x1a, 68eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_div = 0x1b, 69eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_minus = 0x1c, 70eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_mod = 0x1d, 71eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_mul = 0x1e, 72eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_neg = 0x1f, 73eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_not = 0x20, 74eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_or = 0x21, 75eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_plus = 0x22, 76eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_plus_uconst = 0x23, 77eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_shl = 0x24, 78eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_shr = 0x25, 79eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_shra = 0x26, 80eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_xor = 0x27, 81eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_skip = 0x2f, 82eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_bra = 0x28, 83eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_eq = 0x29, 84eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_ge = 0x2a, 85eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_gt = 0x2b, 86eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_le = 0x2c, 87eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lt = 0x2d, 88eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_ne = 0x2e, 89eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lit0 = 0x30, 90eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lit1, DW_OP_lit2, DW_OP_lit3, DW_OP_lit4, DW_OP_lit5, 91eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lit6, DW_OP_lit7, DW_OP_lit8, DW_OP_lit9, DW_OP_lit10, 92eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lit11, DW_OP_lit12, DW_OP_lit13, DW_OP_lit14, DW_OP_lit15, 93eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lit16, DW_OP_lit17, DW_OP_lit18, DW_OP_lit19, DW_OP_lit20, 94eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lit21, DW_OP_lit22, DW_OP_lit23, DW_OP_lit24, DW_OP_lit25, 95eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lit26, DW_OP_lit27, DW_OP_lit28, DW_OP_lit29, DW_OP_lit30, 96eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lit31, 97eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_reg0 = 0x50, 98eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_reg1, DW_OP_reg2, DW_OP_reg3, DW_OP_reg4, DW_OP_reg5, 99eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_reg6, DW_OP_reg7, DW_OP_reg8, DW_OP_reg9, DW_OP_reg10, 100eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_reg11, DW_OP_reg12, DW_OP_reg13, DW_OP_reg14, DW_OP_reg15, 101eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_reg16, DW_OP_reg17, DW_OP_reg18, DW_OP_reg19, DW_OP_reg20, 102eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_reg21, DW_OP_reg22, DW_OP_reg23, DW_OP_reg24, DW_OP_reg25, 103eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_reg26, DW_OP_reg27, DW_OP_reg28, DW_OP_reg29, DW_OP_reg30, 104eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_reg31, 105eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_breg0 = 0x70, 106eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_breg1, DW_OP_breg2, DW_OP_breg3, DW_OP_breg4, DW_OP_breg5, 107eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_breg6, DW_OP_breg7, DW_OP_breg8, DW_OP_breg9, DW_OP_breg10, 108eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_breg11, DW_OP_breg12, DW_OP_breg13, DW_OP_breg14, DW_OP_breg15, 109eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_breg16, DW_OP_breg17, DW_OP_breg18, DW_OP_breg19, DW_OP_breg20, 110eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_breg21, DW_OP_breg22, DW_OP_breg23, DW_OP_breg24, DW_OP_breg25, 111eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_breg26, DW_OP_breg27, DW_OP_breg28, DW_OP_breg29, DW_OP_breg30, 112eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_breg31, 113eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_regx = 0x90, 114eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_fbreg = 0x91, 115eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_bregx = 0x92, 116eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_piece = 0x93, 117eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_deref_size = 0x94, 118eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_xderef_size = 0x95, 119eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_nop = 0x96, 120eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_push_object_address = 0x97, 121eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_call2 = 0x98, 122eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_call4 = 0x99, 123eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_call_ref = 0x9a, 124eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_lo_user = 0xe0, 125eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_OP_hi_user = 0xff 126eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm } 127eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmdwarf_expr_op_t; 128eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 129eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DWARF_CIE_VERSION 3 /* GCC emits version 1??? */ 130eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 131eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DWARF_CFA_OPCODE_MASK 0xc0 132eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DWARF_CFA_OPERAND_MASK 0x3f 133eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 134eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmtypedef enum 135eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm { 136eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_advance_loc = 0x40, 137eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_offset = 0x80, 138eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_restore = 0xc0, 139eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_nop = 0x00, 140eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_set_loc = 0x01, 141eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_advance_loc1 = 0x02, 142eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_advance_loc2 = 0x03, 143eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_advance_loc4 = 0x04, 144eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_offset_extended = 0x05, 145eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_restore_extended = 0x06, 146eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_undefined = 0x07, 147eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_same_value = 0x08, 148eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_register = 0x09, 149eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_remember_state = 0x0a, 150eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_restore_state = 0x0b, 151eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_def_cfa = 0x0c, 152eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_def_cfa_register = 0x0d, 153eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_def_cfa_offset = 0x0e, 154eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_def_cfa_expression = 0x0f, 155adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm DW_CFA_expression = 0x10, 156eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_offset_extended_sf = 0x11, 157eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_def_cfa_sf = 0x12, 158eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_def_cfa_offset_sf = 0x13, 159eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_lo_user = 0x1c, 160eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_MIPS_advance_loc8 = 0x1d, 161eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_GNU_window_save = 0x2d, 162eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_GNU_args_size = 0x2e, 163eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_GNU_negative_offset_extended = 0x2f, 164eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DW_CFA_hi_user = 0x3c 165eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm } 166eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmdwarf_cfa_t; 167eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 168eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm/* DWARF Pointer-Encoding (PEs). 169eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 170eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm Pointer-Encodings were invented for the GCC exception-handling 171eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm support for C++, but they represent a rather generic way of 172eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm describing the format in which an address/pointer is stored and 173eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm hence we include the definitions here, in the main dwarf.h file. 174eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm The Pointer-Encoding format is partially documented in Linux Base 175eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm Spec v1.3 (http://www.linuxbase.org/spec/). The rest is reverse 176eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm engineered from GCC. 177eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 178eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm*/ 179eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_FORMAT_MASK 0x0f /* format of the encoded value */ 180eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_APPL_MASK 0x70 /* how the value is to be applied */ 181eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm/* Flag bit. If set, the resulting pointer is the address of the word 182eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm that contains the final address. */ 183eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_indirect 0x80 184eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 185eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm/* Pointer-encoding formats: */ 186eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_omit 0xff 187eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_ptr 0x00 /* pointer-sized unsigned value */ 188eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_uleb128 0x01 /* unsigned LE base-128 value */ 189eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_udata2 0x02 /* unsigned 16-bit value */ 190eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_udata4 0x03 /* unsigned 32-bit value */ 191eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_udata8 0x04 /* unsigned 64-bit value */ 192eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_sleb128 0x09 /* signed LE base-128 value */ 193eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_sdata2 0x0a /* signed 16-bit value */ 194eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_sdata4 0x0b /* signed 32-bit value */ 195eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_sdata8 0x0c /* signed 64-bit value */ 196eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 197eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm/* Pointer-encoding application: */ 198eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_absptr 0x00 /* absolute value */ 199eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_pcrel 0x10 /* rel. to addr. of encoded value */ 200eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_textrel 0x20 /* text-relative (GCC-specific???) */ 201eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_datarel 0x30 /* data-relative */ 202eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm/* The following are not documented by LSB v1.3, yet they are used by 203eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm GCC, presumably they aren't documented by LSB since they aren't 204eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm used on Linux: */ 205eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_funcrel 0x40 /* start-of-procedure-relative */ 206eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DW_EH_PE_aligned 0x50 /* aligned pointer */ 207eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 2081fdb08e5fc427b54b54214e3b3fbdda73d369f4dDavid Mosberger-Tangextern struct mempool dwarf_reg_state_pool; 2091fdb08e5fc427b54b54214e3b3fbdda73d369f4dDavid Mosberger-Tangextern struct mempool dwarf_cie_info_pool; 2101fdb08e5fc427b54b54214e3b3fbdda73d369f4dDavid Mosberger-Tang 211eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmtypedef enum 212eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm { 213eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DWARF_WHERE_UNDEF, /* register isn't saved at all */ 214eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DWARF_WHERE_SAME, /* register has same value as in prev. frame */ 215eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DWARF_WHERE_CFAREL, /* register saved at CFA-relative address */ 216eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DWARF_WHERE_REG, /* register saved in another register */ 217eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm DWARF_WHERE_EXPR, /* register saved */ 218eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm } 219eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmdwarf_where_t; 220eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 221eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmtypedef struct 222eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm { 223eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm dwarf_where_t where; /* how is the register saved? */ 224eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unw_word_t val; /* where it's saved */ 225eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm } 226eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmdwarf_save_loc_t; 227eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 228eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm/* For uniformity, we'd like to treat the CFA save-location like any 229eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm other register save-location, but this doesn't quite work, because 230eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm the CFA can be expressed as a (REGISTER,OFFSET) pair. To handle 231eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm this, we use two dwarf_save_loc structures to describe the CFA. 232eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm The first one (CFA_REG_COLUMN), tells us where the CFA is saved. 233eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm In the case of DWARF_WHERE_EXPR, the CFA is defined by a DWARF 234eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm location expression whose address is given by member "val". In the 235eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm case of DWARF_WHERE_REG, member "val" gives the number of the 236eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm base-register and the "val" member of DWARF_CFA_OFF_COLUMN gives 237eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm the offset value. */ 238eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DWARF_CFA_REG_COLUMN DWARF_NUM_PRESERVED_REGS 239eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define DWARF_CFA_OFF_COLUMN (DWARF_NUM_PRESERVED_REGS + 1) 240eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 241eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmtypedef struct dwarf_reg_state 242eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm { 243eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm struct dwarf_reg_state *next; /* for rs_stack */ 244eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm dwarf_save_loc_t reg[DWARF_NUM_PRESERVED_REGS + 2]; 24500db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma unw_word_t ip; /* ip this rs is for */ 246c5dc3c150a4fab2962f8d32f78d80ce857e662a5Arun Sharma unw_word_t ret_addr_column; /* indicates which column in the rule table represents return address */ 24700db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma unsigned short lru_chain; /* used for least-recently-used chain */ 24800db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma unsigned short coll_chain; /* used for hash collisions */ 24900db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma unsigned short hint; /* hint for next rs to try (or -1) */ 250dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura unsigned short signal_frame; /* optional machine-dependent signal info */ 251eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm } 252eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmdwarf_reg_state_t; 253eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 254adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidmtypedef struct dwarf_cie_info 255adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm { 256adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t cie_instr_start; /* start addr. of CIE "initial_instructions" */ 257adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t cie_instr_end; /* end addr. of CIE "initial_instructions" */ 258adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t fde_instr_start; /* start addr. of FDE "instructions" */ 259adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t fde_instr_end; /* end addr. of FDE "instructions" */ 260adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t code_align; /* code-alignment factor */ 261adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t data_align; /* data-alignment factor */ 262adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t ret_addr_column; /* column of return-address register */ 263adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t handler; /* address of personality-routine */ 264adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm uint16_t abi; 265adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm uint16_t tag; 266adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm uint8_t fde_encoding; 267adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm uint8_t lsda_encoding; 268adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unsigned int sized_augmentation : 1; 269adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unsigned int have_abi_marker : 1; 270dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura unsigned int signal_frame : 1; 271adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm } 272adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidmdwarf_cie_info_t; 273adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm 274eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmtypedef struct dwarf_state_record 275eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm { 276eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unsigned char fde_encoding; 277eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unw_word_t args_size; 278eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 279eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm dwarf_reg_state_t rs_initial; /* reg-state after CIE instructions */ 280eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm dwarf_reg_state_t rs_current; /* current reg-state */ 281eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm } 282eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmdwarf_state_record_t; 283eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 284eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmtypedef struct dwarf_cursor 285eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm { 286eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm void *as_arg; /* argument to address-space callbacks */ 287eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unw_addr_space_t as; /* reference to per-address-space info */ 288eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 289eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unw_word_t cfa; /* canonical frame address; aka frame-/stack-pointer */ 290eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unw_word_t ip; /* instruction pointer */ 291eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unw_word_t args_size; /* size of arguments */ 292eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unw_word_t ret_addr_column; /* column for return-address */ 293adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t eh_args[UNW_TDEP_NUM_EH_REGS]; 294adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unsigned int eh_valid_mask; 295eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 296eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm dwarf_loc_t loc[DWARF_NUM_PRESERVED_REGS]; 297eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 298a9dce3c06e6ffcb83957e734d960505415118f00Lassi Tuura unsigned int use_prev_instr :1; /* use previous (= call) or current (= signal) instruction? */ 299eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unsigned int pi_valid :1; /* is proc_info valid? */ 300eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unsigned int pi_is_dynamic :1; /* proc_info found via dynamic proc info? */ 301eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm unw_proc_info_t pi; /* info about current procedure */ 30200db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma 30300db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma short hint; /* faster lookup of the rs cache */ 30400db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma short prev_rs; 305eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm } 306eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidmdwarf_cursor_t; 307eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 30800db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma#define DWARF_LOG_UNW_CACHE_SIZE 7 30900db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma#define DWARF_UNW_CACHE_SIZE (1 << DWARF_LOG_UNW_CACHE_SIZE) 31000db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma 31100db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma#define DWARF_LOG_UNW_HASH_SIZE (DWARF_LOG_UNW_CACHE_SIZE + 1) 31200db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma#define DWARF_UNW_HASH_SIZE (1 << DWARF_LOG_UNW_HASH_SIZE) 31300db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma 31400db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharmatypedef unsigned char unw_hash_index_t; 31500db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma 31600db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharmastruct dwarf_rs_cache 31700db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma { 31800db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma pthread_mutex_t lock; 31900db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma unsigned short lru_head; /* index of lead-recently used rs */ 32000db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma unsigned short lru_tail; /* index of most-recently used rs */ 32100db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma 32200db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma /* hash table that maps instruction pointer to rs index: */ 32300db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma unsigned short hash[DWARF_UNW_HASH_SIZE]; 32400db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma 32500db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma uint32_t generation; /* generation number */ 32600db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma 32700db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma /* rs cache: */ 32800db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma dwarf_reg_state_t buckets[DWARF_UNW_CACHE_SIZE]; 32900db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma }; 33000db7f752ac26c5aab6b4ca03531a2c3e212b135Arun Sharma 3313842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz/* A list of descriptors for loaded .debug_frame sections. */ 3323842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 3333842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstruct unw_debug_frame_list 3343842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz { 3353842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz /* The start (inclusive) and end (exclusive) of the described region. */ 3363842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t start; 3373842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t end; 3383842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz /* The debug frame itself. */ 3393842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz char *debug_frame; 3403842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz size_t debug_frame_size; 3413842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz /* Index (for binary search). */ 3423842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct table_entry *index; 3433842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz size_t index_size; 3443842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz /* Pointer to next descriptor. */ 3453842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct unw_debug_frame_list *next; 3463842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz }; 3473842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 348eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm/* Convenience macros: */ 349eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_init UNW_ARCH_OBJ (dwarf_init) 350eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_find_proc_info UNW_OBJ (dwarf_find_proc_info) 351eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_search_unwind_table UNW_OBJ (dwarf_search_unwind_table) 352eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_put_unwind_info UNW_OBJ (dwarf_put_unwind_info) 353eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_put_unwind_info UNW_OBJ (dwarf_put_unwind_info) 354eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_eval_expr UNW_OBJ (dwarf_eval_expr) 355adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm#define dwarf_extract_proc_info_from_fde \ 356adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm UNW_OBJ (dwarf_extract_proc_info_from_fde) 357eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_find_save_locs UNW_OBJ (dwarf_find_save_locs) 358eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_create_state_record UNW_OBJ (dwarf_create_state_record) 359eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_make_proc_info UNW_OBJ (dwarf_make_proc_info) 360eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_read_encoded_pointer UNW_OBJ (dwarf_read_encoded_pointer) 361eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#define dwarf_step UNW_OBJ (dwarf_step) 362eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 363b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern int dwarf_init (void); 364b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern int dwarf_find_proc_info (unw_addr_space_t as, unw_word_t ip, 365b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unw_proc_info_t *pi, 366b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm int need_unwind_info, void *arg); 367b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern int dwarf_search_unwind_table (unw_addr_space_t as, 368b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unw_word_t ip, 369b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unw_dyn_info_t *di, 370b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unw_proc_info_t *pi, 371b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm int need_unwind_info, void *arg); 372b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern void dwarf_put_unwind_info (unw_addr_space_t as, 373b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unw_proc_info_t *pi, void *arg); 374b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern int dwarf_eval_expr (struct dwarf_cursor *c, unw_word_t *addr, 375b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unw_word_t len, unw_word_t *valp, 376b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm int *is_register); 377adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidmextern int dwarf_extract_proc_info_from_fde (unw_addr_space_t as, 378adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_accessors_t *a, 379adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_word_t *fde_addr, 380adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm unw_proc_info_t *pi, 381adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm int need_unwind_info, 3823842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t base, 383adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm void *arg); 384b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern int dwarf_find_save_locs (struct dwarf_cursor *c); 385b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern int dwarf_create_state_record (struct dwarf_cursor *c, 386b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm dwarf_state_record_t *sr); 387b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern int dwarf_make_proc_info (struct dwarf_cursor *c); 388b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern int dwarf_read_encoded_pointer (unw_addr_space_t as, 389b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unw_accessors_t *a, 390b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unw_word_t *addr, 391b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unsigned char encoding, 392adeb9b598452963f25808f5c338ea0c5f2eaf2b7mostang.com!davidm const unw_proc_info_t *pi, 393b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidm unw_word_t *valp, void *arg); 394b9d2cc7919cf343596fd007506492621311b1c43mostang.com!davidmextern int dwarf_step (struct dwarf_cursor *c); 395eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm 396eb51b4294aa18ab13c9496378abb25162688235bhp.com!davidm#endif /* dwarf_h */ 397