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/* vfork ABI-compatibility entry points for libpthread.
Copyright (C) 2014-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 <shlib-compat.h>
/* libpthread used to have its own vfork implementation that differed
from libc's only in having a pointless micro-optimization. There
is no longer any use to having a separate copy 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 __vfork and
vfork symbols in libpthread.so. */
#if HAVE_IFUNC
# include <nptl/pt-vfork.c>
#elif (SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_20) \
|| SHLIB_COMPAT (libpthread, GLIBC_2_1_2, GLIBC_2_20))
/* Thankfully, on AArch64 we can rely on the compiler generating
a tail call here. */
extern void __libc_vfork (void);
void
vfork_compat (void)
{
__libc_vfork ();
}
# if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_20)
compat_symbol (libpthread, vfork_compat, vfork, GLIBC_2_0);
# endif
# if SHLIB_COMPAT (libpthread, GLIBC_2_1_2, GLIBC_2_20)
strong_alias (vfork_compat, vfork_compat2)
compat_symbol (libpthread, vfork_compat2, __vfork, GLIBC_2_1_2);
# endif
#endif
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