1 files changed, 49 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/pt-fork.c b/REORG.TODO/nptl/pt-fork.c
new file mode 100644
index 0000000000..a1493a0159
--- /dev/null
+++ b/REORG.TODO/nptl/pt-fork.c
@@ -0,0 +1,49 @@
+/* ABI compatibility for 'fork' symbol in libpthread ABI.
+   Copyright (C) 2002-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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/>.  */
+
+#include <unistd.h>
+#include <shlib-compat.h>
+
+/* libpthread once had its own fork, though there was no apparent reason
+   for it.  There is no use in having a separate symbol in libpthread, but
+   the historical ABI requires it.  For static linking, there is no need to
+   provide anything here--the libc version will be linked in.  For shared
+   library ABI compatibility, there must be __fork and fork symbols in
+   libpthread.so.
+
+   With an IFUNC resolver, it would be possible to avoid the
+   indirection, but the IFUNC resolver might run before the
+   __libc_fork symbol has been relocated, in which case the IFUNC
+   resolver would not be able to provide the correct address.  */
+
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_22)
+
+static pid_t __attribute__ ((used))
+fork_compat (void)
+{
+  return __libc_fork ();
+}
+
+strong_alias (fork_compat, fork_alias)
+compat_symbol (libpthread, fork_alias, fork, GLIBC_2_0);
+
+strong_alias (fork_compat, __fork_alias)
+compat_symbol (libpthread, __fork_alias, __fork, GLIBC_2_0);
+
+#endif