1 /* Test program for dwarf_getscopes. 2 Copyright (C) 2005 Red Hat, Inc. 3 This file is part of Red Hat elfutils. 4 5 Red Hat elfutils is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by the 7 Free Software Foundation; version 2 of the License. 8 9 Red Hat elfutils is distributed in the hope that it will be useful, but 10 WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 General Public License for more details. 13 14 You should have received a copy of the GNU General Public License along 15 with Red Hat elfutils; if not, write to the Free Software Foundation, 16 Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. 17 18 Red Hat elfutils is an included package of the Open Invention Network. 19 An included package of the Open Invention Network is a package for which 20 Open Invention Network licensees cross-license their patents. No patent 21 license is granted, either expressly or impliedly, by designation as an 22 included package. Should you wish to participate in the Open Invention 23 Network licensing program, please visit www.openinventionnetwork.com 24 <http://www.openinventionnetwork.com>. */ 25 26 #include <config.h> 27 #include <assert.h> 28 #include <inttypes.h> 29 #include ELFUTILS_HEADER(dwfl) 30 #include <dwarf.h> 31 #include <argp.h> 32 #include <stdio.h> 33 #include <stdio_ext.h> 34 #include <locale.h> 35 #include <stdlib.h> 36 #include <error.h> 37 #include <string.h> 38 #include <fnmatch.h> 39 40 41 static void 42 paddr (const char *prefix, Dwarf_Addr addr, Dwfl_Line *line) 43 { 44 const char *src; 45 int lineno, linecol; 46 if (line != NULL 47 && (src = dwfl_lineinfo (line, &addr, &lineno, &linecol, 48 NULL, NULL)) != NULL) 49 { 50 if (linecol != 0) 51 printf ("%s%#" PRIx64 " (%s:%d:%d)", 52 prefix, addr, src, lineno, linecol); 53 else 54 printf ("%s%#" PRIx64 " (%s:%d)", 55 prefix, addr, src, lineno); 56 } 57 else 58 printf ("%s%#" PRIx64, prefix, addr); 59 } 60 61 62 static void 63 print_vars (unsigned int indent, Dwarf_Die *die) 64 { 65 Dwarf_Die child; 66 if (dwarf_child (die, &child) == 0) 67 do 68 switch (dwarf_tag (&child)) 69 { 70 case DW_TAG_variable: 71 case DW_TAG_formal_parameter: 72 printf ("%*s%-30s[%6" PRIx64 "]\n", indent, "", 73 dwarf_diename (&child), 74 (uint64_t) dwarf_dieoffset (&child)); 75 break; 76 default: 77 break; 78 } 79 while (dwarf_siblingof (&child, &child) == 0); 80 81 Dwarf_Attribute attr_mem; 82 Dwarf_Die origin; 83 if (dwarf_hasattr (die, DW_AT_abstract_origin) 84 && dwarf_formref_die (dwarf_attr (die, DW_AT_abstract_origin, &attr_mem), 85 &origin) != NULL 86 && dwarf_child (&origin, &child) == 0) 87 do 88 switch (dwarf_tag (&child)) 89 { 90 case DW_TAG_variable: 91 case DW_TAG_formal_parameter: 92 printf ("%*s%s (abstract)\n", indent, "", 93 dwarf_diename (&child)); 94 break; 95 default: 96 break; 97 } 98 while (dwarf_siblingof (&child, &child) == 0); 99 } 100 101 102 #define INDENT 4 103 104 struct args 105 { 106 Dwfl *dwfl; 107 Dwarf_Die *cu; 108 Dwarf_Addr dwbias; 109 char **argv; 110 }; 111 112 static int 113 handle_function (Dwarf_Die *funcdie, void *arg) 114 { 115 struct args *a = arg; 116 117 const char *name = dwarf_diename (funcdie); 118 char **argv = a->argv; 119 if (argv[0] != NULL) 120 { 121 bool match; 122 do 123 match = fnmatch (*argv, name, 0) == 0; 124 while (!match && *++argv); 125 if (!match) 126 return 0; 127 } 128 129 Dwarf_Die *scopes; 130 int n = dwarf_getscopes_die (funcdie, &scopes); 131 if (n <= 0) 132 error (EXIT_FAILURE, 0, "dwarf_getscopes_die: %s", dwarf_errmsg (-1)); 133 else 134 { 135 Dwarf_Addr start, end; 136 const char *fname; 137 const char *modname = dwfl_module_info (dwfl_cumodule (a->cu), NULL, 138 &start, &end, 139 NULL, NULL, 140 &fname, NULL); 141 if (modname == NULL) 142 error (EXIT_FAILURE, 0, "dwfl_module_info: %s", dwarf_errmsg (-1)); 143 if (modname[0] == '\0') 144 modname = fname; 145 printf ("%s: %#" PRIx64 " .. %#" PRIx64 "\n", modname, start, end); 146 147 unsigned int indent = 0; 148 while (n-- > 0) 149 { 150 Dwarf_Die *const die = &scopes[n]; 151 152 indent += INDENT; 153 printf ("%*s%s (%#x)", indent, "", 154 dwarf_diename (die) ?: "<unnamed>", 155 dwarf_tag (die)); 156 157 Dwarf_Addr lowpc, highpc; 158 if (dwarf_lowpc (die, &lowpc) == 0 159 && dwarf_highpc (die, &highpc) == 0) 160 { 161 lowpc += a->dwbias; 162 highpc += a->dwbias; 163 Dwfl_Line *loline = dwfl_getsrc (a->dwfl, lowpc); 164 Dwfl_Line *hiline = dwfl_getsrc (a->dwfl, highpc); 165 paddr (": ", lowpc, loline); 166 if (highpc != lowpc) 167 paddr (" .. ", lowpc, hiline == loline ? NULL : hiline); 168 } 169 puts (""); 170 171 print_vars (indent + INDENT, die); 172 } 173 } 174 175 return 0; 176 } 177 178 179 int 180 main (int argc, char *argv[]) 181 { 182 int remaining; 183 184 /* Set locale. */ 185 (void) setlocale (LC_ALL, ""); 186 187 struct args a = { .dwfl = NULL, .cu = NULL }; 188 189 (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &remaining, 190 &a.dwfl); 191 assert (a.dwfl != NULL); 192 a.argv = &argv[remaining]; 193 194 int result = 0; 195 196 while ((a.cu = dwfl_nextcu (a.dwfl, a.cu, &a.dwbias)) != NULL) 197 dwarf_getfuncs (a.cu, &handle_function, &a, 0); 198 199 dwfl_end (a.dwfl); 200 201 return result; 202 } 203
