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
|
#include <inttypes.h>
#include <assert.h>
#include <libdwfl.h>
#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(%s)+%#" PRIx64, modname, secname, 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");
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);
}
return 0;
}
|
