am 7401a30e: am 36e62782: Merge "Upgrade to elfutils 0.161."

* commit '7401a30e8b3a0de25d7e8a6b635fc33f45894118':
  Upgrade to elfutils 0.161.

1 files changed, 102 insertions, 0 deletions

diff --git a/src/tests/dwfl-bug-fd-leak.c b/src/tests/dwfl-bug-fd-leak.c
new file mode 100644
index 00000000..170a61a7
--- /dev/null
+++ b/src/tests/dwfl-bug-fd-leak.c
@@ -0,0 +1,102 @@
+/* Test program for libdwfl file decriptors leakage.
+   Copyright (C) 2007, 2008 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/>.  */
+
+#include <config.h>
+#include <assert.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <locale.h>
+#include <dirent.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <error.h>
+#include <unistd.h>
+#include <dwarf.h>
+#include <sys/resource.h>
+#include ELFUTILS_HEADER(dwfl)
+
+
+static Dwfl *
+elfutils_open (pid_t pid, Dwarf_Addr address)
+{
+  static char *debuginfo_path;
+  static const Dwfl_Callbacks proc_callbacks =
+    {
+      .find_debuginfo = dwfl_standard_find_debuginfo,
+      .debuginfo_path = &debuginfo_path,
+
+      .find_elf = dwfl_linux_proc_find_elf,
+    };
+  Dwfl *dwfl = dwfl_begin (&proc_callbacks);
+  if (dwfl == NULL)
+    error (2, 0, "dwfl_begin: %s", dwfl_errmsg (-1));
+
+  int result = dwfl_linux_proc_report (dwfl, pid);
+  if (result < 0)
+    error (2, 0, "dwfl_linux_proc_report: %s", dwfl_errmsg (-1));
+  else if (result > 0)
+    error (2, result, "dwfl_linux_proc_report");
+
+  if (dwfl_report_end (dwfl, NULL, NULL) != 0)
+    error (2, 0, "dwfl_report_end: %s", dwfl_errmsg (-1));
+
+  Dwarf_Addr bias;
+  Dwarf *dbg = dwfl_addrdwarf (dwfl, address, &bias);
+  if (dbg != NULL)
+    {
+      Elf *elf = dwarf_getelf (dbg);
+      if (elf == NULL)
+	error (2, 0, "dwarf_getelf: %s", dwarf_errmsg (-1));
+    }
+  else
+    {
+      Elf *elf = dwfl_module_getelf (dwfl_addrmodule (dwfl, address), &bias);
+      if (elf == NULL)
+	error (2, 0, "dwfl_module_getelf: %s", dwfl_errmsg (-1));
+    }
+
+  return dwfl;
+}
+
+static void
+elfutils_close (Dwfl *dwfl)
+{
+  dwfl_end (dwfl);
+}
+
+int
+main (void)
+{
+  /* We use no threads here which can interfere with handling a stream.  */
+  (void) __fsetlocking (stdout, FSETLOCKING_BYCALLER);
+
+  /* Set locale.  */
+  (void) setlocale (LC_ALL, "");
+
+  struct rlimit fd_limit = { .rlim_cur = 32, .rlim_max = 32 };
+  if (setrlimit (RLIMIT_NOFILE, &fd_limit) < 0)
+    error (2, errno, "setrlimit");
+
+  for (int i = 0; i < 5000; ++i)
+    {
+      Dwfl *dwfl = elfutils_open (getpid (), (Dwarf_Addr) (uintptr_t) &main);
+      elfutils_close (dwfl);
+    }
+
+  return 0;
+}