1 /*- 2 * Copyright (c) 2010 Kai Wang 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include "_libdwarf.h" 28 29 ELFTC_VCSID("$Id: dwarf_pro_lineno.c 2973 2013-12-23 06:46:16Z kaiwang27 $"); 30 31 Dwarf_Unsigned 32 dwarf_add_line_entry(Dwarf_P_Debug dbg, Dwarf_Unsigned file, 33 Dwarf_Addr off, Dwarf_Unsigned lineno, Dwarf_Signed column, 34 Dwarf_Bool is_stmt, Dwarf_Bool basic_block, Dwarf_Error *error) 35 { 36 Dwarf_LineInfo li; 37 Dwarf_Line ln; 38 39 if (dbg == NULL) { 40 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 41 return (DW_DLV_NOCOUNT); 42 } 43 44 li = dbg->dbgp_lineinfo; 45 46 ln = STAILQ_LAST(&li->li_lnlist, _Dwarf_Line, ln_next); 47 48 if (ln == NULL || ln->ln_addr > off) { 49 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 50 return (DW_DLV_NOCOUNT); 51 } 52 53 if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) { 54 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 55 return (DW_DLV_NOCOUNT); 56 } 57 ln->ln_li = li; 58 ln->ln_addr = off; 59 ln->ln_symndx = 0; 60 ln->ln_fileno = file; 61 ln->ln_lineno = lineno; 62 ln->ln_column = column; 63 ln->ln_bblock = basic_block != 0; 64 ln->ln_stmt = is_stmt != 0; 65 ln->ln_endseq = 0; 66 STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next); 67 li->li_lnlen++; 68 69 return (DW_DLV_OK); 70 } 71 72 Dwarf_Unsigned 73 dwarf_lne_set_address(Dwarf_P_Debug dbg, Dwarf_Addr offs, Dwarf_Unsigned symndx, 74 Dwarf_Error *error) 75 { 76 Dwarf_LineInfo li; 77 Dwarf_Line ln; 78 79 if (dbg == NULL || symndx == 0) { 80 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 81 return (DW_DLV_NOCOUNT); 82 } 83 84 li = dbg->dbgp_lineinfo; 85 86 if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) { 87 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 88 return (DW_DLV_NOCOUNT); 89 } 90 ln->ln_li = li; 91 ln->ln_addr = offs; 92 ln->ln_symndx = symndx; 93 STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next); 94 li->li_lnlen++; 95 96 return (DW_DLV_OK); 97 } 98 99 Dwarf_Unsigned 100 dwarf_lne_end_sequence(Dwarf_P_Debug dbg, Dwarf_Addr addr, Dwarf_Error *error) 101 { 102 Dwarf_LineInfo li; 103 Dwarf_Line ln; 104 105 if (dbg == NULL) { 106 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 107 return (DW_DLV_NOCOUNT); 108 } 109 110 li = dbg->dbgp_lineinfo; 111 112 ln = STAILQ_LAST(&li->li_lnlist, _Dwarf_Line, ln_next); 113 if (ln && ln->ln_addr >= addr) { 114 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 115 return (DW_DLV_NOCOUNT); 116 } 117 118 if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) { 119 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 120 return (DW_DLV_NOCOUNT); 121 } 122 ln->ln_li = li; 123 ln->ln_addr = addr; 124 ln->ln_endseq = 1; 125 STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next); 126 li->li_lnlen++; 127 128 return (DW_DLV_OK); 129 } 130 131 Dwarf_Unsigned 132 dwarf_add_directory_decl(Dwarf_P_Debug dbg, char *name, Dwarf_Error *error) 133 { 134 Dwarf_LineInfo li; 135 136 if (dbg == NULL || name == NULL || strlen(name) == 0) { 137 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 138 return (DW_DLV_NOCOUNT); 139 } 140 141 li = dbg->dbgp_lineinfo; 142 143 li->li_incdirs = realloc(li->li_incdirs, (li->li_inclen + 1) * 144 sizeof(char *)); 145 if (li->li_incdirs == NULL) { 146 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 147 return (DW_DLV_NOCOUNT); 148 } 149 if ((li->li_incdirs[li->li_inclen] = strdup(name)) == NULL) { 150 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 151 return (DW_DLV_NOCOUNT); 152 } 153 154 return (++li->li_inclen); 155 } 156 157 Dwarf_Unsigned 158 dwarf_add_file_decl(Dwarf_P_Debug dbg, char *name, Dwarf_Unsigned dirndx, 159 Dwarf_Unsigned mtime, Dwarf_Unsigned size, Dwarf_Error *error) 160 { 161 Dwarf_LineInfo li; 162 Dwarf_LineFile lf; 163 164 if (dbg == NULL || name == NULL || strlen(name) == 0) { 165 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 166 return (DW_DLV_NOCOUNT); 167 } 168 169 li = dbg->dbgp_lineinfo; 170 171 if ((lf = malloc(sizeof(struct _Dwarf_LineFile))) == NULL) { 172 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 173 return (DW_DLE_MEMORY); 174 } 175 176 if ((lf->lf_fname = strdup(name)) == NULL) { 177 free(lf); 178 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 179 return (DW_DLE_MEMORY); 180 } 181 lf->lf_dirndx = dirndx; 182 lf->lf_mtime = mtime; 183 lf->lf_size = size; 184 STAILQ_INSERT_TAIL(&li->li_lflist, lf, lf_next); 185 186 return (++li->li_lflen); 187 } 188