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/* Test program for dwarf_decl_file
Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
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 <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <dwarf.h>
#include ELFUTILS_HEADER(dw)
static void
walk_tree (Dwarf_Die *dwarf_die, int indent)
{
Dwarf_Die die = *dwarf_die;
do
{
int child_indent = indent;
const char *file = dwarf_decl_file (&die);
if (file != NULL)
{
printf("%*s", indent, "");
const char *name = dwarf_diename (&die) ?: "???";
int line, column;
if (dwarf_decl_line (&die, &line) == 0)
{
if (dwarf_decl_column (&die, &column) == 0)
printf ("%s@%s:%d:%d\n", name, file, line, column);
else
printf ("%s@%s:%d\n", name, file, line);
}
else
printf ("%s@%s\n", name, file);
child_indent++;
}
Dwarf_Die child;
if (dwarf_child (&die, &child) == 0)
walk_tree (&child, child_indent);
}
while (dwarf_siblingof (&die, &die) == 0);
}
int
main (int argc, char *argv[])
{
for (int i = 1; i < argc; i++)
{
printf ("file: %s\n", argv[i]);
int fd = open (argv[i], O_RDONLY);
Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable: %s\n", argv[i], dwarf_errmsg (-1));
return -1;
}
Dwarf_CU *cu = NULL;
Dwarf_Die cudie, subdie;
uint8_t unit_type;
while (dwarf_get_units (dbg, cu, &cu, NULL, &unit_type, &cudie, &subdie)
== 0)
{
Dwarf_Die *die = unit_type == DW_UT_skeleton ? &subdie : &cudie;
printf (" cu: %s\n", dwarf_diename (die) ?: "???");
walk_tree (die, 2);
}
dwarf_end (dbg);
close (fd);
}
return 0;
}
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