1 /* Copyright (C) 2002, 2004 Red Hat, Inc. 2 This file is part of Red Hat elfutils. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 2002. 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 #ifdef HAVE_CONFIG_H 27 # include <config.h> 28 #endif 29 30 #include <fcntl.h> 31 #include <inttypes.h> 32 #include <libelf.h> 33 #include ELFUTILS_HEADER(dw) 34 #include <stdio.h> 35 #include <unistd.h> 36 37 38 int 39 main (int argc, char *argv[]) 40 { 41 int result = 0; 42 int cnt; 43 44 for (cnt = 1; cnt < argc; ++cnt) 45 { 46 int fd = open (argv[cnt], O_RDONLY); 47 48 Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); 49 if (dbg == NULL) 50 { 51 printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1)); 52 close (fd); 53 continue; 54 } 55 56 Dwarf_Off cuoff = 0; 57 Dwarf_Off old_cuoff = 0; 58 size_t hsize; 59 Dwarf_Off ao; 60 uint8_t asz; 61 uint8_t osz; 62 while (dwarf_nextcu (dbg, cuoff, &cuoff, &hsize, &ao, &asz, &osz) == 0) 63 { 64 printf ("cuhl = %zu, o = %llu, asz = %hhu, osz = %hhu, ncu = %llu\n", 65 hsize, (unsigned long long int) ao, 66 asz, osz, (unsigned long long int) cuoff); 67 68 /* Get the DIE for the CU. */ 69 Dwarf_Die die; 70 if (dwarf_offdie (dbg, old_cuoff + hsize, &die) == NULL) 71 { 72 /* Something went wrong. */ 73 printf ("%s: cannot get CU die\n", argv[cnt]); 74 result = 1; 75 break; 76 } 77 old_cuoff = cuoff; 78 79 Dwarf_Lines *lb; 80 size_t nlb; 81 if (dwarf_getsrclines (&die, &lb, &nlb) != 0) 82 { 83 printf ("%s: cannot get lines\n", argv[cnt]); 84 result = 1; 85 break; 86 } 87 88 printf (" %zu lines\n", nlb); 89 90 for (size_t i = 0; i < nlb; ++i) 91 { 92 Dwarf_Line *l = dwarf_onesrcline (lb, i); 93 if (l == NULL) 94 { 95 printf ("%s: cannot get individual line\n", argv[cnt]); 96 result = 1; 97 break; 98 } 99 100 Dwarf_Addr addr; 101 if (dwarf_lineaddr (l, &addr) != 0) 102 addr = 0; 103 const char *file = dwarf_linesrc (l, NULL, NULL); 104 int line; 105 if (dwarf_lineno (l, &line) != 0) 106 line = 0; 107 108 printf ("%" PRIx64 ": %s:%d:", (uint64_t) addr, 109 file ?: "???", line); 110 111 int column; 112 if (dwarf_linecol (l, &column) != 0) 113 column = 0; 114 if (column >= 0) 115 printf ("%d:", column); 116 117 bool is_stmt; 118 if (dwarf_linebeginstatement (l, &is_stmt) != 0) 119 is_stmt = false; 120 bool end_sequence; 121 if (dwarf_lineendsequence (l, &end_sequence) != 0) 122 end_sequence = false; 123 bool basic_block; 124 if (dwarf_lineblock (l, &basic_block) != 0) 125 basic_block = false; 126 bool prologue_end; 127 if (dwarf_lineprologueend (l, &prologue_end) != 0) 128 prologue_end = false; 129 bool epilogue_begin; 130 if (dwarf_lineepiloguebegin (l, &epilogue_begin) != 0) 131 epilogue_begin = false; 132 133 printf (" is_stmt:%s, end_seq:%s, bb:%s, prologue:%s, epilogue:%s\n", 134 is_stmt ? "yes" : "no", end_sequence ? "yes" : "no", 135 basic_block ? "yes" : "no", prologue_end ? "yes" : "no", 136 epilogue_begin ? "yes" : "no"); 137 } 138 } 139 140 dwarf_end (dbg); 141 close (fd); 142 } 143 144 return result; 145 } 146
