[PATCH] ia64: POSIX timer fixes

Here is a patch to have the POSIX timer interface completly integrated
in ia64 (2.5.64). The programs in userland can now access the siginfo
structure. With that patch the test programs of the high resolution
timers pass without error but one which seems to also be triggered on
ix86: nanosleeps too short.

arch/ia64/ia32/ia32_signal.c

@@ -148,6 +148,11 @@ copy_siginfo_to_user32 (siginfo_t32 *to, siginfo_t *from)
 			err |= __put_user(from->si_band, &to->si_band);
 			err |= __put_user(from->si_fd, &to->si_fd);
 			break;
+		case __SI_TIMER >> 16:
+			err |= __put_user(from->si_tid, &to->si_tid);
+			err |= __put_user(from->si_overrun, &to->si_overrun);
+			err |= __put_user(from->si_ptr, &to->si_ptr); /*XXX eric: not sure the size is correct because it contains pointer*/
+			break;
 		/* case __SI_RT: This is not generated by the kernel as of now.  */
 		}
 	}

arch/ia64/kernel/fsys.S

@@ -533,15 +533,15 @@ fsyscall_table:
 	data8 fsys_fallback_syscall	// epoll_wait		// 1245
 	data8 fsys_fallback_syscall	// restart_syscall
 	data8 fsys_fallback_syscall	// semtimedop
-	data8 fsys_fallback_syscall
-	data8 fsys_fallback_syscall
-	data8 fsys_fallback_syscall				// 1250
-	data8 fsys_fallback_syscall
-	data8 fsys_fallback_syscall
-	data8 fsys_fallback_syscall
-	data8 fsys_fallback_syscall
-	data8 fsys_fallback_syscall				// 1255
-	data8 fsys_fallback_syscall
+	data8 fsys_fallback_syscall	// timer_create
+	data8 fsys_fallback_syscall	// timer_settime
+	data8 fsys_fallback_syscall	// timer_gettime 	// 1250
+	data8 fsys_fallback_syscall	// timer_getoverrun
+	data8 fsys_fallback_syscall	// timer_delete
+	data8 fsys_fallback_syscall	// clock_settime
+	data8 fsys_fallback_syscall	// clock_gettime
+	data8 fsys_fallback_syscall	// clock_getres		// 1255
+	data8 fsys_fallback_syscall	// clock_nanosleep
 	data8 fsys_fallback_syscall
 	data8 fsys_fallback_syscall
 	data8 fsys_fallback_syscall

arch/ia64/kernel/signal.c

@@ -191,6 +191,10 @@ copy_siginfo_to_user (siginfo_t *to, siginfo_t *from)
 				err |= __put_user(from->si_pfm_ovfl[2], &to->si_pfm_ovfl[2]);
 				err |= __put_user(from->si_pfm_ovfl[3], &to->si_pfm_ovfl[3]);
 			}
+		      case __SI_TIMER >> 16:
+			err |= __put_user(from->si_tid, &to->si_tid);
+			err |= __put_user(from->si_overrun, &to->si_overrun);
+			err |= __put_user(from->si_value, &to->si_value);
 			break;
 		      default:
 			err |= __put_user(from->si_uid, &to->si_uid);

arch/ia64/kernel/time.c

@@ -113,6 +113,7 @@ do_settimeofday (struct timeval *tv)
 		time_esterror = NTP_PHASE_LIMIT;
 	}
 	write_sequnlock_irq(&xtime_lock);
+	clock_was_set();
 }
 
 void

include/asm-ia64/ia32.h

@@ -214,8 +214,11 @@ typedef struct siginfo32 {
 
 		/* POSIX.1b timers */
 		struct {
-			unsigned int _timer1;
-			unsigned int _timer2;
+			timer_t _tid;		/* timer id */
+			int _overrun;		/* overrun count */
+			char _pad[sizeof(unsigned int) - sizeof(int)];
+			sigval_t32 _sigval;	/* same as below */
+			int _sys_private;       /* not to be passed to user */
 		} _timer;
 
 		/* POSIX.1b signals */