ipc.c: split into separate files

In preparation for upcoming mpers-related changes,
split ipc.c into independent groups of parsers.

* ipc_defs.h: New file.
* ipc_msg.c: Likewise.
* ipc_msgctl.c: Likewise.
* ipc_sem.c: Likewise.
* ipc_shm.c: Likewise.
* ipc_shmctl.c: Likewise.
* mq.c: Likewise.
* print_mq_attr.c: Likewise.
* print_msgbuf.c: Likewise.
* ipc.c: Remove.
(sys_mq_open, sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify,
sys_mq_getsetattr): Move to mq.c.
(sys_msgget, tprint_msgsnd, sys_msgsnd, tprint_msgrcv, sys_msgrcv): Move
to ipc_msg.c.
(sys_msgctl): Move to ipc_msgctl.c.
(tprint_sembuf, tprint_sembuf_array, sys_semop, sys_semtimedop,
sys_semget, syssemctl): Move to ipc_sem.c.
(sys_shmget, sys_shmat, sys_shmdt): Move to ipc_shm.c.
(sys_shmctl): Move to ipc_shmctl.c.
(printmqattr): Move to print_mq_attr.c.
(tprint_msgbuf): Move to print_msgbuf.c.
(IPC_64, PRINTCTL): Move to ipc_defs.h.
* defs.h (struct xlat resource_flags): New prototype.
* Makefile.am (strace_SOURCES): Remove ipc.c.  Add ipc_defs.h, mq.c,
ipc_msg.c, ipc_msgctl.c, ipc_sem.c, ipc_shm.c, ipc_shmctl.c,
print_mq_attr.c, and print_msgbuf.c.
diff --git a/print_mq_attr.c b/print_mq_attr.c
new file mode 100644
index 0000000..184fff1
--- /dev/null
+++ b/print_mq_attr.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2004 Ulrich Drepper <drepper@redhat.com>
+ * Copyright (c) 2005-2015 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "defs.h"
+
+#ifdef HAVE_MQUEUE_H
+# include <mqueue.h>
+#endif
+
+void
+printmqattr(struct tcb *tcp, const long addr)
+{
+# ifndef HAVE_MQUEUE_H
+	printaddr(addr);
+# else
+	struct mq_attr attr;
+	if (umove_or_printaddr(tcp, addr, &attr))
+		return;
+	tprints("{mq_flags=");
+	tprint_open_modes(attr.mq_flags);
+	tprintf(", mq_maxmsg=%ld, mq_msgsize=%ld, mq_curmsg=%ld}",
+		(long) attr.mq_maxmsg, (long) attr.mq_msgsize,
+		(long) attr.mq_curmsgs);
+# endif
+}