sendmmsg for ARM and MIPS

["Joseph S. Myers" <joseph at codesourcery dot com>]

I've applied these patches to update the ARM and MIPS ports for the 
addition of sendmmsg for libc, similar to 
<http://sourceware.org/ml/libc-ports/2010-05/msg00023.html> for recvmmsg.

diff --git a/ChangeLog.arm b/ChangeLog.arm
index 6a9bdde..30405dd 100644
--- a/ChangeLog.arm
+++ b/ChangeLog.arm
@@ -1,3 +1,7 @@
+2010-06-20  Joseph Myers  <joseph@codesourcery.com>
+
+	* sysdeps/unix/sysv/linux/arm/eabi/internal_sendmmsg.S: New.
+
 2011-05-07  Konstantinos Margaritis  <markos@genesi-usa.com>
 
 	* sysdeps/arm/preconfigure: Detect arm-linux-gnueabi* as ARM EABI.
diff --git a/ChangeLog.mips b/ChangeLog.mips
index 2ead239..9abc018 100644
--- a/ChangeLog.mips
+++ b/ChangeLog.mips
@@ -1,5 +1,10 @@
 2011-06-20  Joseph Myers  <joseph@codesourcery.com>
 
+	* sysdeps/unix/sysv/linux/mips/mips32/sendmmsg.c,
+	sysdeps/unix/sysv/linux/mips/mips32/internal_sendmmsg.S: New.
+
+2011-06-20  Joseph Myers  <joseph@codesourcery.com>
+
 	* sysdeps/unix/sysv/linux/mips/bits/siginfo.h (SI_USER): Don't
 	mention raise in the comment.
 
diff --git a/sysdeps/unix/sysv/linux/arm/eabi/internal_sendmmsg.S b/sysdeps/unix/sysv/linux/arm/eabi/internal_sendmmsg.S
new file mode 100644
index 0000000..eeb5f50
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arm/eabi/internal_sendmmsg.S
@@ -0,0 +1,6 @@
+/* Tag_ABI_align8_preserved: This code preserves 8-byte
+   alignment in any callee.  */
+	.eabi_attribute 25, 1
+/* Tag_ABI_align8_needed: This code may require 8-byte alignment from
+   the caller.  */
+	.eabi_attribute 24, 1
diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket.h b/sysdeps/unix/sysv/linux/mips/bits/socket.h
index 91af8b2..698d508 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/socket.h
@@ -415,7 +415,7 @@ struct linger
 
 __BEGIN_DECLS
 
-/* Receive a message as described by MESSAGE from socket FD.
+/* Receive up to VLEN messages as described by VMESSAGES from socket FD.
    Returns the number of bytes read or -1 for errors.
 
    This function is a cancellation point and therefore not marked with
@@ -424,6 +424,13 @@ extern int recvmmsg (int __fd, struct mmsghdr *__vmessages,
 		     unsigned int __vlen, int __flags,
 		     __const struct timespec *__tmo);
 
+/* Send a VLEN messages as described by VMESSAGES to socket FD.
+   Return the number of datagrams successfully written or -1 for errors.
+This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int sendmmsg (int __fd, struct mmsghdr *__vmessages,
+		     unsigned int __vlen, int __flags);
+
 __END_DECLS
 
 #endif	/* bits/socket.h */
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/internal_sendmmsg.S b/sysdeps/unix/sysv/linux/mips/mips32/internal_sendmmsg.S
new file mode 100644
index 0000000..30434d7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/mips32/internal_sendmmsg.S
@@ -0,0 +1,2 @@
+/* MIPS does not have socket.S and the socketcall syscall should
+   generally be avoided, though it exists.  */
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/sendmmsg.c b/sysdeps/unix/sysv/linux/mips/mips32/sendmmsg.c
new file mode 100644
index 0000000..c4f9a9f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/mips32/sendmmsg.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2011 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* Avoid sendmmsg.c trying to use a definition based on the socketcall
+   syscall and internal_sendmmsg.S.  */
+
+#include <errno.h>
+#include <sys/socket.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+#include <kernel-features.h>
+
+#undef __NR_socketcall
+
+#include <sysdeps/unix/sysv/linux/sendmmsg.c>

-- 
Joseph S. Myers
joseph@codesourcery.com