1 /* 2 3 Copyright (C) 2000,2004 Silicon Graphics, Inc. All Rights Reserved. 4 Portions Copyright 2007-2010 Sun Microsystems, Inc. All rights reserved. 5 Portions Copyright 2017 David Anderson All rights reserved. 6 7 This program is free software; you can redistribute it 8 and/or modify it under the terms of version 2.1 of the 9 GNU Lesser General Public License as published by the Free 10 Software Foundation. 11 12 This program is distributed in the hope that it would be 13 useful, but WITHOUT ANY WARRANTY; without even the implied 14 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 15 PURPOSE. 16 17 Further, this software is distributed without any warranty 18 that it is free of the rightful claim of any third person 19 regarding infringement or the like. Any license provided 20 herein, whether implied or otherwise, applies only to this 21 software file. Patent licenses, if any, provided herein 22 do not apply to combinations of this program with other 23 software, or any other product whatsoever. 24 25 You should have received a copy of the GNU Lesser General 26 Public License along with this program; if not, write the 27 Free Software Foundation, Inc., 51 Franklin Street - Fifth 28 Floor, Boston MA 02110-1301, USA. 29 30 */ 31 32 33 #define DW_LINE_VERSION2 2 34 #define DW_LINE_VERSION3 3 35 #define DW_LINE_VERSION4 4 36 37 #if defined(__i386) || defined(__x86_64) 38 #define MIN_INST_LENGTH 1 39 #elif defined(__s390__) || defined(__s390x__) 40 /* Correct value unknown. This is temporary 41 as we need a better way to set this (in 42 dwarfgen). This at least works for dwarfgen testing 43 at this point, avoids an error. */ 44 #define MIN_INST_LENGTH 1 45 #else 46 /* 1 is not necessarily the most efficient (space-wise) for various 47 architectures, but will allow line tables to be generated 48 without error if the input expects the min length to be 1. 49 When using dwarfgen the setting should be that of the 50 output arch, not the host (unless the two essentially match). */ 51 #define MIN_INST_LENGTH 4 52 #endif 53 #define DEFAULT_IS_STMT false 54 /* line base and range are temporarily defines. 55 They need to be calculated later. */ 56 #define LINE_BASE -1 57 #define LINE_RANGE 4 58 59 #define OPCODE_BASE 10 /* DWARF2. 13 in DWARF3, 4, 5 */ 60 #define MAX_OPCODE 255 61 62 63 64 /* This struct holds file or include_dir 65 entries for the statement prologue. 66 Defined in pro_line.h */ 67 struct Dwarf_P_F_Entry_s { 68 char *dfe_name; 69 Dwarf_P_F_Entry dfe_next; 70 71 /* DWARF 2,3,4, files only not inc dirs */ 72 char *dfe_args; /* has dir index, time of modification, 73 length in bytes. Encodes as leb128 */ 74 int dfe_nbytes; /* number of bytes in args */ 75 76 /* Dwarf5 Use or not depends on file_name_entry_format 77 actually used. */ 78 unsigned dfe_index; 79 Dwarf_Unsigned dfe_timestamp; 80 unsigned dfe_size; 81 unsigned char dfe_md5[16]; 82 83 }; 84 85 86 /* 87 Struct holding line number information for each of the producer 88 line entries 89 */ 90 struct Dwarf_P_Line_s { 91 /* code address */ 92 Dwarf_Addr dpl_address; 93 94 /* file index, index into file entry */ 95 Dwarf_Unsigned dpl_file; 96 97 /* line number */ 98 Dwarf_Unsigned dpl_line; 99 100 /* column number */ 101 Dwarf_Unsigned dpl_column; 102 103 /* whether its a beginning of a stmt */ 104 Dwarf_Ubyte dpl_is_stmt; 105 106 /* whether its a beginning of basic blk */ 107 Dwarf_Ubyte dpl_basic_block; 108 109 /* used to store opcodes set_address, and end_seq */ 110 Dwarf_Ubyte dpl_opc; 111 112 /* Used only for relocations. Has index of symbol relative to 113 which relocation has to be done (the S part in S + A) */ 114 Dwarf_Unsigned dpl_r_symidx; 115 116 Dwarf_P_Line dpl_next; 117 118 Dwarf_Ubyte dpl_prologue_end; /* DWARF3 */ 119 Dwarf_Ubyte dpl_epilogue_begin; /* DWARF3 */ 120 Dwarf_Unsigned dpl_isa; /* DWARF3 */ 121 Dwarf_Unsigned dpl_discriminator; /* DWARF4 */ 122 123 }; 124 125 /* 126 to initialize state machine registers, definition in 127 pro_line.c 128 */ 129 void _dwarf_pro_reg_init(Dwarf_P_Debug dbg,Dwarf_P_Line); 130 131 void _dwarf_init_default_line_header_vals(Dwarf_P_Debug dbg); 132