summaryrefslogtreecommitdiff
path: root/tests/line2addr.c
blob: 8a983bd1bb69b39d25e96f2fa9107ef76a74c3ed (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/* Copyright (C) 2005 Red Hat, Inc.

   This program is Open Source software; you can redistribute it and/or
   modify it under the terms of the Open Software License version 1.0 as
   published by the Open Source Initiative.

   You should have received a copy of the Open Software License along
   with this program; if not, you may obtain a copy of the Open Software
   License version 1.0 from http://www.opensource.org/licenses/osl.php or
   by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
   3001 King Ranch Road, Ukiah, CA 95482.   */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <inttypes.h>
#include <assert.h>
#include ELFUTILS_HEADER(dwfl)
#include <argp.h>
#include <stdio.h>
#include <locale.h>
#include <stdlib.h>
#include <string.h>
#include <error.h>


static void
print_address (Dwfl_Module *mod, Dwarf_Addr address)
{
  int n = dwfl_module_relocations (mod);
  if (n < 0)
    error (0, 0, "dwfl_module_relocations: %s", dwfl_errmsg (-1));
  else if (n > 0)
    {
      int i = dwfl_module_relocate_address (mod, &address);
      if (i < 0)
	error (0, 0, "dwfl_module_relocate_address: %s", dwfl_errmsg (-1));
      else
	{
	  const char *modname = dwfl_module_info (mod, NULL, NULL, NULL,
						  NULL, NULL, NULL, NULL);
	  const char *secname = dwfl_module_relocation_info (mod, i, NULL);
	  if (n > 1 || secname[0] != '\0')
	    printf ("%s(%s)+%#" PRIx64, modname, secname, address);
	  else
	    printf ("%s+%#" PRIx64, modname, address);
	  return;
	}
    }

  printf ("%#" PRIx64, address);
}


struct args
{
  const char *arg;
  char *file;
  int line;
};

static int
handle_module (Dwfl_Module *mod __attribute__ ((unused)),
	       void **udata __attribute__ ((unused)),
	       const char *modname, Dwarf_Addr base __attribute__ ((unused)),
	       Dwarf *dbg __attribute__ ((unused)),
	       Dwarf_Addr bias __attribute__ ((unused)), void *arg)
{
  const struct args *const a = arg;

  Dwfl_Line **lines = NULL;
  size_t nlines = 0;

  if (dwfl_module_getsrc_file (mod, a->file, a->line, 0, &lines, &nlines) == 0)
    {
      for (size_t inner = 0; inner < nlines; ++inner)
	{
	  Dwarf_Addr addr;
	  int line = a->line, col = 0;
	  const char *file = dwfl_lineinfo (lines[inner], &addr, &line, &col,
					    NULL, NULL);
	  if (file != NULL)
	    {
	      printf ("%s -> ", a->arg);
	      print_address (mod, addr);
	      if (modname[0] != '\0')
		printf (" (%s:", modname);
	      if (strcmp (file, a->file) || line != a->line || col != 0)
		printf (" %s%s:%d", modname[0] != '\0' ? "" : "(",
			file, line);
	      if (col != 0)
		printf (":%d", col);
	      if (modname[0] != '\0'
		  || strcmp (file, a->file) || line != a->line || col != 0)
		puts (")");
	      else
		puts ("");
	    }
	}
      free (lines);
    }

  return DWARF_CB_OK;
}

int
main (int argc, char *argv[])
{
  int cnt;

  /* Set locale.  */
  (void) setlocale (LC_ALL, "");

  Dwfl *dwfl = NULL;
  (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &cnt, &dwfl);
  assert (dwfl != NULL);

  for (; cnt < argc; ++cnt)
    {
      struct args a = { .arg = argv[cnt] };

      switch (sscanf (a.arg, "%a[^:]:%d", &a.file, &a.line))
	{
	default:
	case 0:
	  printf ("ignored %s\n", argv[cnt]);
	  continue;
	case 1:
	  a.line = 0;
	  break;
	case 2:
	  break;
	}

      (void) dwfl_getdwarf (dwfl, &handle_module, &a, 0);

      free (a.file);
    }

  dwfl_end (dwfl);

  return 0;
}