ia64: Hook up POSIX-timer syscalls. Take advantage of ptrace_notify().

arch/ia64/kernel/entry.S

@@ -1281,15 +1281,15 @@ sys_call_table:
 	data8 sys_epoll_wait			// 1245
 	data8 sys_restart_syscall
 	data8 sys_semtimedop
-	data8 ia64_ni_syscall
-	data8 ia64_ni_syscall
-	data8 ia64_ni_syscall			// 1250
-	data8 ia64_ni_syscall
-	data8 ia64_ni_syscall
-	data8 ia64_ni_syscall
-	data8 ia64_ni_syscall
-	data8 ia64_ni_syscall			// 1255
-	data8 ia64_ni_syscall
+	data8 sys_timer_create
+	data8 sys_timer_settime
+	data8 sys_timer_gettime			// 1250
+	data8 sys_timer_getoverrun
+	data8 sys_timer_delete
+	data8 sys_clock_settime
+	data8 sys_clock_gettime
+	data8 sys_clock_getres			// 1255
+	data8 sys_clock_nanosleep
 	data8 ia64_ni_syscall
 	data8 ia64_ni_syscall
 	data8 ia64_ni_syscall

arch/ia64/kernel/ptrace.c

@@ -1342,15 +1342,12 @@ syscall_trace (void)
 	 * The 0x80 provides a way for the tracing parent to distinguish between a syscall
 	 * stop and SIGTRAP delivery.
 	 */
-	current->exit_code = SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-					? 0x80 : 0);
-	set_current_state(TASK_STOPPED);
-	notify_parent(current, SIGCHLD);
-	schedule();
+	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80 : 0));
+
 	/*
-	 * This isn't the same as continuing with a signal, but it
-	 * will do for normal use.  strace only continues with a
-	 * signal if the stopping signal is not SIGTRAP.  -brl
+	 * This isn't the same as continuing with a signal, but it will do for normal use.
+	 * strace only continues with a signal if the stopping signal is not SIGTRAP.
+	 * -brl
 	 */
 	if (current->exit_code) {
 		send_sig(current->exit_code, current, 1);

include/asm-ia64/unistd.h

@@ -237,6 +237,15 @@
 #define __NR_epoll_wait			1245
 #define __NR_restart_syscall		1246
 #define __NR_semtimedop			1247
+#define __NR_sys_timer_create		1248
+#define __NR_sys_timer_settime		1249
+#define __NR_sys_timer_gettime		1250
+#define __NR_sys_timer_getoverrun	1251
+#define __NR_sys_timer_delete		1252
+#define __NR_sys_clock_settime		1253
+#define __NR_sys_clock_gettime		1254
+#define __NR_sys_clock_getres		1255
+#define __NR_sys_clock_nanosleep	1256
 
 #if !defined(__ASSEMBLY__) && !defined(ASSEMBLER)