1/* Copyright (C) 2002, 2004 Red Hat, Inc.
2   This file is part of elfutils.
3   Written by Ulrich Drepper <drepper@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
30int
31main (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