[PATCH 3/6] Split sparc out of main Linux kernel-features.h.

This patch splits sparc out of the main Linux kernel-features.h.

Not tested.

	* sysdeps/unix/sysv/linux/sparc/kernel-features.h: New file.
	* sysdeps/unix/sysv/linux/kernel-features.h [__sparc__]
	(__ASSUME_SOCKETCALL): Do not define.
	(__ASSUME_SET_ROBUST_LIST): Define unconditionally.
	(__ASSUME_FUTEX_LOCK_PI): Likewise.
	[__sparc__] (__ASSUME_ACCEPT4_SYSCALL): Do not define.
	[__sparc__] (__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL): Likewise.
	(__ASSUME_REQUEUE_PI): Define unconditionally.
	[__LINUX_KERNEL_VERSION >= 0x020621 && __sparc__]
	(__ASSUME_RECVMMSG_SYSCALL): Do not define.
	[__sparc__] (__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	[__LINUX_KERNEL_VERSION >= 0x030000 && __sparc__]
	(__ASSUME_SENDMMSG_SYSCALL): Likewise.
	[__sparc__] (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.

1 files changed, 47 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/sparc/kernel-features.h b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
new file mode 100644
index 0000000000..1754d36e03
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/kernel-features.h
@@ -0,0 +1,47 @@
+/* Set flags signalling availability of kernel features based on given
+   kernel version number.  SPARC version.
+   Copyright (C) 1999-2014 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
+
+/* The accept4 syscall was added for SPARC in 2.6.28.  */
+#define __ASSUME_ACCEPT4_SYSCALL	1
+#define __ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL	1
+
+/* The recvmmsg syscall was added for SPARC in 2.6.33.  */
+#if __LINUX_KERNEL_VERSION >= 0x020621
+# define __ASSUME_RECVMMSG_SYSCALL	1
+#endif
+#define __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL	1
+
+/* The sendmmsg syscall was added for SPARC in 3.0.  */
+#if __LINUX_KERNEL_VERSION >= 0x030000
+# define __ASSUME_SENDMMSG_SYSCALL	1
+#endif
+#define __ASSUME_SENDMMSG_SYSCALL_WITH_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_FUTEX_LOCK_PI
+# undef __ASSUME_REQUEUE_PI
+# undef __ASSUME_SET_ROBUST_LIST
+#endif