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-rw-r--r--nptl/pt-vfork.c65
1 files changed, 0 insertions, 65 deletions
diff --git a/nptl/pt-vfork.c b/nptl/pt-vfork.c
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--- a/nptl/pt-vfork.c
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-/* vfork ABI-compatibility entry points for libpthread.
- Copyright (C) 2014-2019 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 <unistd.h>
-#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; so we define them using IFUNC to
- redirect to the libc function. */
-
-/* Note! If the architecture doesn't support IFUNC, then we need an
- alternate target-specific mechanism to implement this. So we just
- assume IFUNC here and require that the target override this file
- if necessary.
-
- If the architecture can assume all supported versions of gcc will
- produce a tail-call to __libc_vfork, consider including the version
- in sysdeps/unix/sysv/linux/aarch64/pt-vfork.c. */
-
-#if !HAVE_IFUNC
-# error "must write pt-vfork for this machine or get IFUNC support"
-#endif
-
-#if (SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_20) \
- || SHLIB_COMPAT (libpthread, GLIBC_2_1_2, GLIBC_2_20))
-
-extern __typeof (vfork) __libc_vfork; /* Defined in libc. */
-
-# undef INIT_ARCH
-# define INIT_ARCH()
-# define DEFINE_VFORK(name) libc_ifunc (name, &__libc_vfork)
-
-#endif
-
-#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_20)
-extern __typeof(vfork) vfork_ifunc;
-DEFINE_VFORK (vfork_ifunc)
-compat_symbol (libpthread, vfork_ifunc, vfork, GLIBC_2_0);
-#endif
-
-#if SHLIB_COMPAT (libpthread, GLIBC_2_1_2, GLIBC_2_20)
-extern __typeof(vfork) __vfork_ifunc;
-DEFINE_VFORK (__vfork_ifunc)
-compat_symbol (libpthread, __vfork_ifunc, __vfork, GLIBC_2_1_2);
-#endif