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authorMike Frysinger <vapier@gentoo.org>2013-08-26 00:21:26 -0400
committerMike Frysinger <vapier@gentoo.org>2013-08-27 15:47:13 -0400
commit3b813b29653a3ebfd78c2529127a9967d8f2857d (patch)
treebb6c6ae204f8d88666e501c7732c7bf6115b4761 /dlfcn/bug-dl-leaf.c
parent7f9d00341057eb80b43fa83956b8d7798b4dabea (diff)
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[BZ #15897] dlfcn: do not mark dlopen/dlclose as leaf functions
Since the dlopen funcs might invoke a constructor that calls a func
that is in the same compilation unit as the caller, we cannot mark
them as leaf funcs.

Similarly, dlclose might invoke a destructor that calls a func that
is in the same compilation unit as the caller.

URL: https://sourceware.org/bugzilla/show_bug.cgi?id=15897
Reportedy-by: Fabrice Bauzac <libnoon@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'dlfcn/bug-dl-leaf.c')
-rw-r--r--dlfcn/bug-dl-leaf.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/dlfcn/bug-dl-leaf.c b/dlfcn/bug-dl-leaf.c
new file mode 100644
index 0000000000..c3fbe757fb
--- /dev/null
+++ b/dlfcn/bug-dl-leaf.c
@@ -0,0 +1,25 @@
+/* Make sure dlopen/dlclose are not marked as leaf functions.
+   See bug-dl-leaf-lib.c for details.
+
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Mike Frysinger <vapier@gentoo.org>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_FUNCTION lib_main ()
+extern int lib_main (void);
+
+#include "../test-skeleton.c"