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/* Copyright (C) 2002, 2004, 2005, 2007 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2002.
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 <libelf.h>
#include ELFUTILS_HEADER(dw)
#include <stdio.h>
#include <unistd.h>
#include "../libdw/libdwP.h"
static void
print_dirs_and_files (Dwarf_Files *files, const char *const *dirs,
size_t nfiles, size_t ndirs)
{
if (dirs[0] == NULL)
puts (" dirs[0] = (null)");
else
printf (" dirs[0] = \"%s\"\n", dirs[0]);
for (size_t i = 1; i < ndirs; ++i)
printf (" dirs[%zu] = \"%s\"\n", i, dirs[i]);
for (size_t i = 0; i < nfiles; ++i)
printf (" file[%zu] = \"%s\"\n", i,
dwarf_filesrc (files, i, NULL, NULL));
}
int
main (int argc, char *argv[])
{
int result = 0;
int cnt = argc - 1;
int fd = open (argv[cnt], O_RDONLY);
Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable\n", argv[cnt]);
result = 1;
if (fd != -1)
close (fd);
goto out;
}
Dwarf_Off o = 0;
Dwarf_Off ncu;
size_t cuhl;
/* Just inspect the first CU. */
if (dwarf_nextcu (dbg, o, &ncu, &cuhl, NULL, NULL, NULL) != 0)
{
printf ("%s: cannot get CU\n", argv[cnt]);
result = 1;
goto out;
}
Dwarf_Die die_mem;
Dwarf_Die *die = dwarf_offdie (dbg, o + cuhl, &die_mem);
if (die == NULL)
{
printf ("%s: cannot get CU die\n", argv[cnt]);
result = 1;
goto out;
}
Dwarf_Files *files;
size_t nfiles;
/* The files from DW_LNE_define_file should not be included
until dwarf_getsrclines is called. */
if (dwarf_getsrcfiles (die, &files, &nfiles) != 0)
{
printf ("%s: cannot get files\n", argv[cnt]);
result = 1;
goto out;
}
if (die->cu->lines != NULL)
{
printf ("%s: dwarf_getsrcfiles should not get lines\n", argv[cnt]);
result = 1;
goto out;
}
const char *const *dirs;
size_t ndirs;
if (dwarf_getsrcdirs (files, &dirs, &ndirs) != 0)
{
printf ("%s: cannot get include directories\n", argv[cnt]);
result = 1;
goto out;
}
/* Print file info without files from DW_LNE_define_file. */
print_dirs_and_files (files, dirs, nfiles, ndirs);
Dwarf_Lines *lines;
size_t nlines;
/* Reading the line program should add the new files. */
if (dwarf_getsrclines (die, &lines, &nlines) != 0)
{
printf ("%s: cannot get lines\n", argv[cnt]);
result = 1;
goto out;
}
Dwarf_Files *updated_files;
size_t num_updated_files;
/* Get the new files. */
if (dwarf_getsrcfiles (die, &updated_files, &num_updated_files) != 0)
{
printf ("%s: cannot get files\n", argv[cnt]);
result = 1;
goto out;
}
const char *const *updated_dirs;
size_t num_updated_dirs;
/* The dirs shouldn't change but verify that getsrcdirs still works. */
if (dwarf_getsrcdirs (updated_files, &updated_dirs, &num_updated_dirs) != 0)
{
printf ("%s: cannot get include directories\n", argv[cnt]);
result = 1;
goto out;
}
/* Verify that we didn't invalidate the old file info. */
print_dirs_and_files (files, dirs, nfiles, ndirs);
/* Print all files including those from DW_LNE_define_file. */
print_dirs_and_files (updated_files, updated_dirs,
num_updated_files, num_updated_dirs);
out:
dwarf_end (dbg);
close (fd);
return result;
}
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