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Diffstat (limited to 'nptl/pt-vfork.c')
-rw-r--r-- | nptl/pt-vfork.c | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/nptl/pt-vfork.c b/nptl/pt-vfork.c deleted file mode 100644 index 3676977669..0000000000 --- a/nptl/pt-vfork.c +++ /dev/null @@ -1,65 +0,0 @@ -/* 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 |