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_macinfo.c 2074 2011-10-27 03:34:33Z jkoshy $"); 30 31 static int 32 _dwarf_add_macro(Dwarf_P_Debug dbg, int type, Dwarf_Unsigned lineno, 33 Dwarf_Signed fileindex, char *str1, char *str2, Dwarf_Error *error) 34 { 35 Dwarf_Macro_Details *md; 36 int len; 37 38 dbg->dbgp_mdlist = realloc(dbg->dbgp_mdlist, 39 (size_t) dbg->dbgp_mdcnt + 1); 40 if (dbg->dbgp_mdlist == NULL) { 41 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 42 return (DW_DLV_ERROR); 43 } 44 45 md = &dbg->dbgp_mdlist[dbg->dbgp_mdcnt]; 46 dbg->dbgp_mdcnt++; 47 48 md->dmd_offset = 0; 49 md->dmd_type = type; 50 md->dmd_lineno = lineno; 51 md->dmd_fileindex = fileindex; 52 md->dmd_macro = NULL; 53 54 if (str1 == NULL) 55 return (DW_DLV_OK); 56 else if (str2 == NULL) { 57 if ((md->dmd_macro = strdup(str1)) == NULL) { 58 dbg->dbgp_mdcnt--; 59 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 60 return (DW_DLV_ERROR); 61 } 62 return (DW_DLV_OK); 63 } else { 64 len = strlen(str1) + strlen(str2) + 2; 65 if ((md->dmd_macro = malloc(len)) == NULL) { 66 dbg->dbgp_mdcnt--; 67 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY); 68 return (DW_DLV_ERROR); 69 } 70 snprintf(md->dmd_macro, len, "%s %s", str1, str2); 71 return (DW_DLV_OK); 72 } 73 } 74 75 int 76 dwarf_def_macro(Dwarf_P_Debug dbg, Dwarf_Unsigned lineno, char *name, 77 char *value, Dwarf_Error *error) 78 { 79 80 if (dbg == NULL || name == NULL) { 81 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 82 return (DW_DLV_ERROR); 83 } 84 85 return (_dwarf_add_macro(dbg, DW_MACINFO_define, lineno, -1, name, 86 value, error)); 87 } 88 89 int 90 dwarf_undef_macro(Dwarf_P_Debug dbg, Dwarf_Unsigned lineno, char *name, 91 Dwarf_Error *error) 92 { 93 94 if (dbg == NULL || name == NULL) { 95 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 96 return (DW_DLV_ERROR); 97 } 98 99 return (_dwarf_add_macro(dbg, DW_MACINFO_undef, lineno, -1, name, 100 NULL, error)); 101 } 102 103 int 104 dwarf_start_macro_file(Dwarf_P_Debug dbg, Dwarf_Unsigned lineno, 105 Dwarf_Unsigned fileindex, Dwarf_Error *error) 106 { 107 108 if (dbg == NULL) { 109 DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); 110 return (DW_DLV_ERROR); 111 } 112 113 return (_dwarf_add_macro(dbg, DW_MACINFO_start_file, lineno, fileindex, 114 NULL, NULL, error)); 115 } 116 117 int 118 dwarf_end_macro_file(Dwarf_P_Debug dbg, Dwarf_Error *error) 119 { 120 121 if (dbg == NULL) { 122 DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT); 123 return (DW_DLV_ERROR); 124 } 125 126 return (_dwarf_add_macro(dbg, DW_MACINFO_end_file, 0, -1, 127 NULL, NULL, error)); 128 } 129 130 int 131 dwarf_vendor_ext(Dwarf_P_Debug dbg, Dwarf_Unsigned constant, char *string, 132 Dwarf_Error *error) 133 { 134 135 if (dbg == NULL || string == NULL) { 136 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 137 return (DW_DLV_ERROR); 138 } 139 140 return (_dwarf_add_macro(dbg, DW_MACINFO_vendor_ext, constant, -1, 141 string, NULL, error)); 142 } 143