Retro68/elfutils/tests/aggregate_size.c
Wolfgang Thaller d21be3b4e1 Add elfutils-0.170
(from https://sourceware.org/elfutils/, GPL/LGPL licensed)
2017-09-21 21:04:42 +02:00

84 lines
2.1 KiB
C

/* Test program for dwarf_aggregate_size. Prints size of top-level vars.
Copyright (C) 2014 Red Hat, Inc.
This file is part of elfutils.
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 <assert.h>
#include <argp.h>
#include <inttypes.h>
#include <fcntl.h>
#include ELFUTILS_HEADER(dw)
#include ELFUTILS_HEADER(dwfl)
#include <stdio.h>
#include <unistd.h>
#include <dwarf.h>
void
print_var_type_size (Dwarf_Die *var)
{
Dwarf_Attribute attr_mem;
Dwarf_Die type_mem;
Dwarf_Die *type;
const char *name = dwarf_diename (var);
type = dwarf_formref_die (dwarf_attr (var, DW_AT_type, &attr_mem),
&type_mem);
if (type != NULL)
{
Dwarf_Word size;
if (dwarf_aggregate_size (type, &size) < 0)
printf ("%s no size: %s\n", name, dwarf_errmsg (-1));
else
printf ("%s size %" PRIu64 "\n", name, size);
}
else
printf ("%s has no type.\n", name);
}
int
main (int argc, char *argv[])
{
int remaining;
Dwfl *dwfl;
(void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &remaining,
&dwfl);
assert (dwfl != NULL);
Dwarf_Die *cu = NULL;
Dwarf_Addr dwbias;
while ((cu = dwfl_nextcu (dwfl, cu, &dwbias)) != NULL)
{
Dwarf_Die die_mem;
Dwarf_Die *die = &die_mem;
dwarf_child (cu, &die_mem);
while (1)
{
if (dwarf_tag (die) == DW_TAG_variable)
print_var_type_size (die);
if (dwarf_siblingof (die, &die_mem) != 0)
break;
}
}
dwfl_end (dwfl);
}