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/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2005 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 1998.
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/>. */
#include <config.h>
#include <fcntl.h>
#include <inttypes.h>
#include ELFUTILS_HEADER(dw)
#include <stdio.h>
#include <unistd.h>
int
main (int argc, char *argv[])
{
int cnt;
for (cnt = 1; cnt < argc; ++cnt)
{
int fd = open (argv[cnt], O_RDONLY);
Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1));
close (fd);
continue;
}
Dwarf_Off cuoff = 0;
Dwarf_Off old_cuoff = 0;
size_t hsize;
while (dwarf_nextcu (dbg, cuoff, &cuoff, &hsize, NULL, NULL, NULL) == 0)
{
/* Get the DIE for the CU. */
Dwarf_Die die;
if (dwarf_offdie (dbg, old_cuoff + hsize, &die) == NULL)
/* Something went wrong. */
break;
/* Test something obviously wrong. */
Dwarf_Abbrev *a = dwarf_getabbrev (&die, (Dwarf_Off) -1, NULL);
if (a != NULL)
{
printf ("dwarf_getabbrev -1 succeeded?\n");
break;
}
Dwarf_Off offset = 0;
while (1)
{
size_t length;
Dwarf_Abbrev *abbrev = dwarf_getabbrev (&die, offset, &length);
if (abbrev == NULL || abbrev == DWARF_END_ABBREV)
/* End of the list. */
break;
unsigned tag = dwarf_getabbrevtag (abbrev);
if (tag == 0)
{
printf ("dwarf_getabbrevtag at offset %llu returned error: %s\n",
(unsigned long long int) offset,
dwarf_errmsg (-1));
break;
}
unsigned code = dwarf_getabbrevcode (abbrev);
if (code == 0)
{
printf ("dwarf_getabbrevcode at offset %llu returned error: %s\n",
(unsigned long long int) offset,
dwarf_errmsg (-1));
break;
}
int children = dwarf_abbrevhaschildren (abbrev);
if (children < 0)
{
printf ("dwarf_abbrevhaschildren at offset %llu returned error: %s\n",
(unsigned long long int) offset,
dwarf_errmsg (-1));
break;
}
printf ("abbrev[%llu]: code = %u, tag = %u, children = %d\n",
(unsigned long long int) offset, code, tag, children);
size_t attrcnt;
if (dwarf_getattrcnt (abbrev, &attrcnt) != 0)
{
printf ("dwarf_getattrcnt at offset %llu returned error: %s\n",
(unsigned long long int) offset,
dwarf_errmsg (-1));
break;
}
unsigned int attr_num;
unsigned int attr_form;
Dwarf_Off aboffset;
size_t j;
for (j = 0; j < attrcnt; ++j)
if (dwarf_getabbrevattr (abbrev, j, &attr_num, &attr_form,
&aboffset))
printf ("dwarf_getabbrevattr for abbrev[%llu] and index %zu failed\n",
(unsigned long long int) offset, j);
else
printf ("abbrev[%llu]: attr[%zu]: code = %u, form = %u, offset = %" PRIu64 "\n",
(unsigned long long int) offset, j, attr_num,
attr_form, (uint64_t) aboffset);
offset += length;
}
old_cuoff = cuoff;
}
if (dwarf_end (dbg) != 0)
printf ("dwarf_end failed for %s: %s\n", argv[cnt],
dwarf_errmsg (-1));
close (fd);
}
return 0;
}
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