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/* Copyright (C) 2011 Red Hat, Inc.
This file is part of elfutils.
Written by Marek Polacek <mpolacek@redhat.com>, 2011.
This file is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include ELFUTILS_HEADER(dwfl)
#include <assert.h>
#include <dwarf.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
int
main (int argc, char *argv[])
{
int cnt;
for (cnt = 1; cnt < argc; ++cnt)
{
Dwarf_Off offset = 0;
size_t len;
int fd = open (argv[cnt], O_RDONLY);
if (fd == -1)
{
printf ("cannot open '%s': %m\n", argv[cnt]);
return 1;
}
Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1));
close (fd);
return 1;
}
/* Try to use NULL Dwarf object. */
const char *str = dwarf_getstring (NULL, offset, &len);
assert (str == NULL);
/* Use insane offset. */
str = dwarf_getstring (dbg, ~0UL, &len);
assert (str == NULL);
/* Now do some real work. */
for (int i = 0; i < 100; ++i)
{
str = dwarf_getstring (dbg, offset, &len);
puts (str);
/* Advance. */
offset += len + 1;
}
dwarf_end (dbg);
close (fd);
}
return 0;
}
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