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84 lines
2.1 KiB
84 lines
2.1 KiB
4 months ago
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/* Test program for dwarf_aggregate_size. Prints size of top-level vars.
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Copyright (C) 2014 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <assert.h>
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#include <argp.h>
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#include <inttypes.h>
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#include <fcntl.h>
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#include ELFUTILS_HEADER(dw)
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#include ELFUTILS_HEADER(dwfl)
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#include <stdio.h>
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#include <unistd.h>
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#include <dwarf.h>
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void
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print_var_type_size (Dwarf_Die *var)
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{
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Dwarf_Attribute attr_mem;
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Dwarf_Die type_mem;
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Dwarf_Die *type;
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const char *name = dwarf_diename (var);
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type = dwarf_formref_die (dwarf_attr (var, DW_AT_type, &attr_mem),
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&type_mem);
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if (type != NULL)
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{
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Dwarf_Word size;
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if (dwarf_aggregate_size (type, &size) < 0)
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printf ("%s no size: %s\n", name, dwarf_errmsg (-1));
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else
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printf ("%s size %" PRIu64 "\n", name, size);
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}
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else
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printf ("%s has no type.\n", name);
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}
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int
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main (int argc, char *argv[])
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{
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int remaining;
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Dwfl *dwfl;
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(void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &remaining,
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&dwfl);
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assert (dwfl != NULL);
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Dwarf_Die *cu = NULL;
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Dwarf_Addr dwbias;
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while ((cu = dwfl_nextcu (dwfl, cu, &dwbias)) != NULL)
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{
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Dwarf_Die die_mem;
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Dwarf_Die *die = &die_mem;
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dwarf_child (cu, &die_mem);
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while (1)
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{
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if (dwarf_tag (die) == DW_TAG_variable)
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print_var_type_size (die);
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if (dwarf_siblingof (die, &die_mem) != 0)
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break;
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}
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}
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dwfl_end (dwfl);
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}
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