fix unnecessary lack of portability.

Reference: /n/atom/patch/applied/386trapclean
Date: Thu Jun  5 14:19:29 CES 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/src/9/pc/trap.c	Thu Jun  5 14:19:06 2014
+++ /sys/src/9/pc/trap.c	Thu Jun  5 14:19:07 2014
@@ -547,9 +547,9 @@
 	iprint("dumpstack\n");
 
 	x = 0;
-	x += iprint("ktrace /kernel/path %.8lux %.8lux <<EOF\n", ureg->pc, ureg->sp);
+	x += iprint("ktrace /kernel/path %#p %#p <<EOF\n", ureg->pc, ureg->sp);
 	i = 0;
-	if(up
+	if(up != nil
 	&& (uintptr)&l >= (uintptr)up->kstack
 	&& (uintptr)&l <= (uintptr)up->kstack+KSTACK)
 		estack = (uintptr)up->kstack+KSTACK;
@@ -645,12 +645,12 @@
 		if(vmapsync(addr))
 			return;
 		if(addr >= TSTKTOP)
-			panic("kernel fault: bad address pc=0x%.8lux addr=0x%.8lux", ureg->pc, addr);
+			panic("kernel fault: bad address pc=%#p addr=%#p", ureg->pc, addr);
 		if(up == nil)
-			panic("kernel fault: no user process pc=0x%.8lux addr=0x%.8lux", ureg->pc, addr);
+			panic("kernel fault: no user process pc=%#p addr=%#p", ureg->pc, addr);
 	}
 	if(up == nil)
-		panic("user fault: up=0 pc=0x%.8lux addr=0x%.8lux", ureg->pc, addr);
+		panic("user fault: up=0 pc=%#p addr=%#p", ureg->pc, addr);
 
 	insyscall = up->insyscall;
 	up->insyscall = 1;
@@ -662,7 +662,7 @@
 		}
 		checkpages();
 		checkfault(addr, ureg->pc);
-		sprint(buf, "sys: trap: fault %s addr=0x%lux",
+		sprint(buf, "sys: trap: fault %s addr=%#p",
 			read ? "read" : "write", addr);
 		postnote(up, 1, buf, NDebug);
 	}
@@ -731,7 +731,7 @@
 	ret = -1;
 	if(!waserror()){
 		if(scallnr >= nsyscall || systab[scallnr] == 0){
-			pprint("bad sys call number %lud pc %lux\n",
+			pprint("bad sys call number %lud pc %#p\n",
 				scallnr, ureg->pc);
 			postnote(up, 1, "sys: bad sys call", NDebug);
 			error(Ebadarg);
@@ -854,7 +854,7 @@
 	sp = ureg->sp;
 	sp -= 256;	/* debugging: preserve context causing problem */
 	sp -= sizeof(Ureg);
-if(0) print("%s %lud: notify %.8lux %.8lux %.8lux %s\n",
+if(0) print("%s %lud: notify %#p %#p %#p %s\n",
 	up->text, up->pid, ureg->pc, ureg->sp, sp, n->msg);
 
 	if(!okaddr((ulong)up->notify, 1, 0)
@@ -938,7 +938,7 @@
 	switch(arg0){
 	case NCONT:
 	case NRSTR:
-if(0) print("%s %lud: noted %.8lux %.8lux\n",
+if(0) print("%s %lud: noted %#p %#p\n",
 	up->text, up->pid, nureg->pc, nureg->sp);
 		if(!okaddr(nureg->pc, 1, 0) || !okaddr(nureg->sp, BY2WD, 0)){
 			qunlock(&up->debug);
@@ -973,7 +973,7 @@
 		qunlock(&up->debug);
 		if(up->lastnote.flag == NDebug){
 			if(unk != NCONT)
-				pprint("unknown noted arg 0x%lux\n", arg0);
+				pprint("unknown noted arg %#p\n", arg0);
 			pprint("suicide: %s\n", up->lastnote.msg);
 		}
 		pexit(up->lastnote.msg, up->lastnote.flag!=NDebug);
--- /sys/src/9/pcpae/trap.c	Thu Jun  5 14:19:09 2014
+++ /sys/src/9/pcpae/trap.c	Thu Jun  5 14:19:10 2014
@@ -547,9 +547,9 @@
 	iprint("dumpstack\n");
 
 	x = 0;
-	x += iprint("ktrace /kernel/path %.8lux %.8lux <<EOF\n", ureg->pc, ureg->sp);
+	x += iprint("ktrace /kernel/path %#p %#p <<EOF\n", ureg->pc, ureg->sp);
 	i = 0;
-	if(up
+	if(up != nil
 	&& (uintptr)&l >= (uintptr)up->kstack
 	&& (uintptr)&l <= (uintptr)up->kstack+KSTACK)
 		estack = (uintptr)up->kstack+KSTACK;
@@ -645,12 +645,12 @@
 		if(vmapsync(addr))
 			return;
 		if(addr >= TSTKTOP)
-			panic("kernel fault: bad address pc=0x%.8lux addr=0x%.8lux", ureg->pc, addr);
+			panic("kernel fault: bad address pc=%#p addr=%#p", ureg->pc, addr);
 		if(up == nil)
-			panic("kernel fault: no user process pc=0x%.8lux addr=0x%.8lux", ureg->pc, addr);
+			panic("kernel fault: no user process pc=%#p addr=%#p", ureg->pc, addr);
 	}
 	if(up == nil)
-		panic("user fault: up=0 pc=0x%.8lux addr=0x%.8lux", ureg->pc, addr);
+		panic("user fault: up=0 pc=%#p addr=%#p", ureg->pc, addr);
 
 	insyscall = up->insyscall;
 	up->insyscall = 1;
@@ -662,7 +662,7 @@
 		}
 		checkpages();
 		checkfault(addr, ureg->pc);
-		sprint(buf, "sys: trap: fault %s addr=0x%lux",
+		sprint(buf, "sys: trap: fault %s addr=%#p",
 			read ? "read" : "write", addr);
 		postnote(up, 1, buf, NDebug);
 	}
@@ -731,7 +731,7 @@
 	ret = -1;
 	if(!waserror()){
 		if(scallnr >= nsyscall || systab[scallnr] == 0){
-			pprint("bad sys call number %lud pc %lux\n",
+			pprint("bad sys call number %lud pc %#p\n",
 				scallnr, ureg->pc);
 			postnote(up, 1, "sys: bad sys call", NDebug);
 			error(Ebadarg);
@@ -854,7 +854,7 @@
 	sp = ureg->sp;
 	sp -= 256;	/* debugging: preserve context causing problem */
 	sp -= sizeof(Ureg);
-if(0) print("%s %lud: notify %.8lux %.8lux %.8lux %s\n",
+if(0) print("%s %lud: notify %#p %#p %#p %s\n",
 	up->text, up->pid, ureg->pc, ureg->sp, sp, n->msg);
 
 	if(!okaddr((ulong)up->notify, 1, 0)
@@ -938,7 +938,7 @@
 	switch(arg0){
 	case NCONT:
 	case NRSTR:
-if(0) print("%s %lud: noted %.8lux %.8lux\n",
+if(0) print("%s %lud: noted %#p %#p\n",
 	up->text, up->pid, nureg->pc, nureg->sp);
 		if(!okaddr(nureg->pc, 1, 0) || !okaddr(nureg->sp, BY2WD, 0)){
 			qunlock(&up->debug);
@@ -973,7 +973,7 @@
 		qunlock(&up->debug);
 		if(up->lastnote.flag == NDebug){
 			if(unk != NCONT)
-				pprint("unknown noted arg 0x%lux\n", arg0);
+				pprint("unknown noted arg %#p\n", arg0);
 			pprint("suicide: %s\n", up->lastnote.msg);
 		}
 		pexit(up->lastnote.msg, up->lastnote.flag!=NDebug);