Squashed 'third_party/elfutils/' content from commit 555e15e

Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/tests/get-files.c b/tests/get-files.c
new file mode 100644
index 0000000..0409173
--- /dev/null
+++ b/tests/get-files.c
@@ -0,0 +1,107 @@
+/* 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>
+
+
+int
+main (int argc, char *argv[])
+{
+  int result = 0;
+  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\n", argv[cnt]);
+	  result = 1;
+	  if (fd != -1)
+	    close (fd);
+	  continue;
+	}
+
+      Dwarf_Off o = 0;
+      Dwarf_Off ncu;
+      Dwarf_Off ao;
+      size_t cuhl;
+      uint8_t asz;
+      uint8_t osz;
+      while (dwarf_nextcu (dbg, o, &ncu, &cuhl, &ao, &asz, &osz) == 0)
+	{
+	  printf ("cuhl = %zu, o = %llu, asz = %hhu, osz = %hhu, ncu = %llu\n",
+		  cuhl, (unsigned long long int) ao,
+		  asz, osz, (unsigned long long int) ncu);
+
+	  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;
+	      break;
+	    }
+
+	  Dwarf_Files *files;
+	  size_t nfiles;
+	  if (dwarf_getsrcfiles (die, &files, &nfiles) != 0)
+	    {
+	      printf ("%s: cannot get files\n", argv[cnt]);
+	      result = 1;
+	      break;
+	    }
+
+	  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;
+	      break;
+	    }
+
+	  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));
+
+	  o = ncu;
+	}
+
+      dwarf_end (dbg);
+      close (fd);
+    }
+
+  return result;
+}