1 /* Copyright (C) 2002, 2004 Red Hat, Inc. 2 This file is part of elfutils. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 2002. 4 5 This file is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 elfutils is distributed in the hope that it will be useful, but 11 WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #ifdef HAVE_CONFIG_H 19 # include <config.h> 20 #endif 21 22 #include <fcntl.h> 23 #include <inttypes.h> 24 #include <libelf.h> 25 #include ELFUTILS_HEADER(dw) 26 #include <stdio.h> 27 #include <unistd.h> 28 29 30 int 31 main (int argc, char *argv[]) 32 { 33 int result = 0; 34 int cnt; 35 36 for (cnt = 1; cnt < argc; ++cnt) 37 { 38 int fd = open (argv[cnt], O_RDONLY); 39 40 Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); 41 if (dbg == NULL) 42 { 43 printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1)); 44 close (fd); 45 continue; 46 } 47 48 Dwarf_Off cuoff = 0; 49 Dwarf_Off old_cuoff = 0; 50 size_t hsize; 51 Dwarf_Off ao; 52 uint8_t asz; 53 uint8_t osz; 54 while (dwarf_nextcu (dbg, cuoff, &cuoff, &hsize, &ao, &asz, &osz) == 0) 55 { 56 printf ("cuhl = %zu, o = %llu, asz = %hhu, osz = %hhu, ncu = %llu\n", 57 hsize, (unsigned long long int) ao, 58 asz, osz, (unsigned long long int) cuoff); 59 60 /* Get the DIE for the CU. */ 61 Dwarf_Die die; 62 if (dwarf_offdie (dbg, old_cuoff + hsize, &die) == NULL) 63 { 64 /* Something went wrong. */ 65 printf ("%s: cannot get CU die\n", argv[cnt]); 66 result = 1; 67 break; 68 } 69 old_cuoff = cuoff; 70 71 Dwarf_Lines *lb; 72 size_t nlb; 73 if (dwarf_getsrclines (&die, &lb, &nlb) != 0) 74 { 75 printf ("%s: cannot get lines\n", argv[cnt]); 76 result = 1; 77 break; 78 } 79 80 printf (" %zu lines\n", nlb); 81 82 for (size_t i = 0; i < nlb; ++i) 83 { 84 Dwarf_Line *l = dwarf_onesrcline (lb, i); 85 if (l == NULL) 86 { 87 printf ("%s: cannot get individual line\n", argv[cnt]); 88 result = 1; 89 break; 90 } 91 92 Dwarf_Addr addr; 93 if (dwarf_lineaddr (l, &addr) != 0) 94 addr = 0; 95 const char *file = dwarf_linesrc (l, NULL, NULL); 96 int line; 97 if (dwarf_lineno (l, &line) != 0) 98 line = 0; 99 100 printf ("%" PRIx64 ": %s:%d:", (uint64_t) addr, 101 file ?: "???", line); 102 103 int column; 104 if (dwarf_linecol (l, &column) != 0) 105 column = 0; 106 if (column >= 0) 107 printf ("%d:", column); 108 109 bool is_stmt; 110 if (dwarf_linebeginstatement (l, &is_stmt) != 0) 111 is_stmt = false; 112 bool end_sequence; 113 if (dwarf_lineendsequence (l, &end_sequence) != 0) 114 end_sequence = false; 115 bool basic_block; 116 if (dwarf_lineblock (l, &basic_block) != 0) 117 basic_block = false; 118 bool prologue_end; 119 if (dwarf_lineprologueend (l, &prologue_end) != 0) 120 prologue_end = false; 121 bool epilogue_begin; 122 if (dwarf_lineepiloguebegin (l, &epilogue_begin) != 0) 123 epilogue_begin = false; 124 125 printf (" is_stmt:%s, end_seq:%s, bb:%s, prologue:%s, epilogue:%s\n", 126 is_stmt ? "yes" : "no", end_sequence ? "yes" : "no", 127 basic_block ? "yes" : "no", prologue_end ? "yes" : "no", 128 epilogue_begin ? "yes" : "no"); 129 } 130 } 131 132 dwarf_end (dbg); 133 close (fd); 134 } 135 136 return result; 137 } 138
