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/dwfl-bug-fd-leak.c b/tests/dwfl-bug-fd-leak.c
new file mode 100644
index 0000000..689cdd7
--- /dev/null
+++ b/tests/dwfl-bug-fd-leak.c
@@ -0,0 +1,116 @@
+/* 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>
+
+#ifndef __linux__
+int
+main (void)
+{
+ return 77; /* dwfl_linux_proc_report is linux specific. */
+}
+#else
+
+#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
+ {
+ Dwfl_Module *module = dwfl_addrmodule (dwfl, address);
+ if (module == NULL)
+ error (2, 0, "dwfl_addrmodule: no module available for 0x%" PRIx64 "",
+ address);
+ Elf *elf = dwfl_module_getelf (module, &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;
+}
+#endif