/* Set flags signalling availability of kernel features based on given

   kernel version number.  SPARC version.

   Copyright (C) 1999-2018 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/>.  */

/* SPARC uses socketcall.  */

#define __ASSUME_SOCKETCALL		1

#include_next <kernel-features.h>

/* 32-bit SPARC kernels do not support

   futex_atomic_cmpxchg_inatomic.  */

#if !defined __arch64__ && !defined __sparc_v9__

# undef __ASSUME_SET_ROBUST_LIST

#endif

#if !defined __arch64__

# undef __ASSUME_ACCEPT_SYSCALL

# undef __ASSUME_CONNECT_SYSCALL

# undef __ASSUME_RECVFROM_SYSCALL

#else

/* sparc64 defines __NR_pause,  however it is not supported (ENOSYS).

   Undefine so pause.c can use a correct alternative.  */

# undef __NR_pause

#endif

/* sparc only supports ipc syscall.  */

#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS

/* Support for the renameat2 syscall was added in 3.16.  */

#if __LINUX_KERNEL_VERSION < 0x031000

# undef __ASSUME_RENAMEAT2

#endif

/* SPARC kernel Kconfig does not define CONFIG_CLONE_BACKWARDS, however it

   has the same ABI as if it did, implemented by sparc-specific code

   (sparc_do_fork).

   It also has a unique return value convention:

     Parent -->  %o0 == child's  pid, %o1 == 0

     Child  -->  %o0 == parent's pid, %o1 == 1

   Which required a special macro to correct issue the syscall

   (INLINE_CLONE_SYSCALL).  */

#undef __ASSUME_CLONE_DEFAULT

#define __ASSUME_CLONE_BACKWARDS	1