/* ABI compatibility for 'fork' symbol in libpthread ABI.

   Copyright (C) 2002-2018 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