liblink: fix Plan 9 warnings

warning: src/liblink/asm5.c:485 non-interruptable temporary
warning: src/liblink/asm5.c:565 set and not used: c
warning: src/liblink/asm5.c:622 format mismatch ux VLONG, arg 2
warning: src/liblink/asm5.c:1218 overspecified class: asmout GLOBL STATIC
warning: src/liblink/asm5.c:2088 overspecified class: oprrr GLOBL STATIC
warning: src/liblink/asm5.c:2202 overspecified class: opbra GLOBL STATIC
warning: src/liblink/asm5.c:2237 overspecified class: olr GLOBL STATIC
warning: src/liblink/asm5.c:2266 overspecified class: olhr GLOBL STATIC
warning: src/liblink/asm5.c:2291 overspecified class: osr GLOBL STATIC
warning: src/liblink/asm5.c:2302 overspecified class: oshr GLOBL STATIC
warning: src/liblink/asm5.c:2312 overspecified class: osrr GLOBL STATIC
warning: src/liblink/asm5.c:2319 overspecified class: oshrr GLOBL STATIC
warning: src/liblink/asm5.c:2325 overspecified class: olrr GLOBL STATIC
warning: src/liblink/asm5.c:2332 overspecified class: olhrr GLOBL STATIC
warning: src/liblink/asm5.c:2338 overspecified class: ofsr GLOBL STATIC
warning: src/liblink/asm5.c:2375 overspecified class: omvl GLOBL STATIC
warning: src/liblink/asm8.c:1261 format mismatch d VLONG, arg 3
warning: src/liblink/asm8.c:1274 format mismatch +d VLONG, arg 5
warning: src/liblink/list5.c:153 format mismatch d VLONG, arg 3
warning: src/liblink/list5.c:310 format mismatch d VLONG, arg 3
warning: src/liblink/obj6.c:665 set and not used: q
warning: src/liblink/pcln.c:32 set and not used: p

R=golang-dev, jas, gobot, rsc
CC=golang-dev
https://golang.org/cl/40370043

src/liblink/asm5.c

@@ -479,8 +479,10 @@ span5(Link *ctxt, LSym *cursym)
 		m = o->size;
 		// must check literal pool here in case p generates many instructions
 		if(ctxt->blitrl){
-			if(checkpool(ctxt, op, p->as == ACASE ? casesz(ctxt, p) : m))
-				c = p->pc = scan(ctxt, op, p, c);
+			if(checkpool(ctxt, op, p->as == ACASE ? casesz(ctxt, p) : m)) {
+				p->pc = scan(ctxt, op, p, c);
+				c = p->pc;
+			}
 		}
 		if(m == 0 && (p->as != AFUNCDATA && p->as != APCDATA)) {
 			ctxt->diag("zero-width instruction\n%P", p);
@@ -560,8 +562,6 @@ span5(Link *ctxt, LSym *cursym)
 		cursym->size = c;
 	} while(bflag);
 
-	c += c&4;
-
 	/*
 	 * lay out the code.  all the pc-relative code references,
 	 * even cross-function, are resolved now;
@@ -617,7 +617,7 @@ flushpool(Link *ctxt, Prog *p, int skip, int force)
 
 	if(ctxt->blitrl) {
 		if(skip){
-			if(0 && skip==1)print("note: flush literal pool at %ux: len=%ud ref=%ux\n", p->pc+4, pool.size, pool.start);
+			if(0 && skip==1)print("note: flush literal pool at %llux: len=%ud ref=%ux\n", p->pc+4, pool.size, pool.start);
 			q = ctxt->arch->prg();
 			q->as = AB;
 			q->to.type = D_BRANCH;
@@ -1212,7 +1212,7 @@ buildop(Link *ctxt)
 	}
 }
 
-void
+static void
 asmout(Link *ctxt, Prog *p, Optab *o, int32 *out, LSym *gmsym)
 {
 	int32 o1, o2, o3, o4, o5, o6, v;
@@ -2082,7 +2082,7 @@ if(0 /*debug['G']*/) print("%ux: %s: arm %d\n", (uint32)(p->pc), p->from.sym->na
 #endif
 }
 
-int32
+static int32
 oprrr(Link *ctxt, int a, int sc)
 {
 	int32 o;
@@ -2196,7 +2196,7 @@ oprrr(Link *ctxt, int a, int sc)
 	return 0;
 }
 
-int32
+static int32
 opbra(Link *ctxt, int a, int sc)
 {
 
@@ -2231,7 +2231,7 @@ opbra(Link *ctxt, int a, int sc)
 	return 0;
 }
 
-int32
+static int32
 olr(Link *ctxt, int32 v, int b, int r, int sc)
 {
 	int32 o;
@@ -2260,7 +2260,7 @@ olr(Link *ctxt, int32 v, int b, int r, int sc)
 	return o;
 }
 
-int32
+static int32
 olhr(Link *ctxt, int32 v, int b, int r, int sc)
 {
 	int32 o;
@@ -2285,7 +2285,7 @@ olhr(Link *ctxt, int32 v, int b, int r, int sc)
 	return o;
 }
 
-int32
+static int32
 osr(Link *ctxt, int a, int r, int32 v, int b, int sc)
 {
 	int32 o;
@@ -2296,7 +2296,7 @@ osr(Link *ctxt, int a, int r, int32 v, int b, int sc)
 	return o;
 }
 
-int32
+static int32
 oshr(Link *ctxt, int r, int32 v, int b, int sc)
 {
 	int32 o;
@@ -2306,33 +2306,33 @@ oshr(Link *ctxt, int r, int32 v, int b, int sc)
 }
 
 
-int32
+static int32
 osrr(Link *ctxt, int r, int i, int b, int sc)
 {
 
 	return olr(ctxt, i, b, r, sc) ^ ((1<<25) | (1<<20));
 }
 
-int32
+static int32
 oshrr(Link *ctxt, int r, int i, int b, int sc)
 {
 	return olhr(ctxt, i, b, r, sc) ^ ((1<<22) | (1<<20));
 }
 
-int32
+static int32
 olrr(Link *ctxt, int i, int b, int r, int sc)
 {
 
 	return olr(ctxt, i, b, r, sc) ^ (1<<25);
 }
 
-int32
+static int32
 olhrr(Link *ctxt, int i, int b, int r, int sc)
 {
 	return olhr(ctxt, i, b, r, sc) ^ (1<<22);
 }
 
-int32
+static int32
 ofsr(Link *ctxt, int a, int r, int32 v, int b, int sc, Prog *p)
 {
 	int32 o;
@@ -2369,7 +2369,7 @@ ofsr(Link *ctxt, int a, int r, int32 v, int b, int sc, Prog *p)
 	return o;
 }
 
-int32
+static int32
 omvl(Link *ctxt, Prog *p, Addr *a, int dr)
 {
 	int32 v, o1;

src/liblink/asm8.c

@@ -1263,7 +1263,7 @@ span8(Link *ctxt, LSym *s)
 	s->size = c;
 
 	if(0 /* debug['a'] > 1 */) {
-		print("span1 %s %d (%d tries)\n %.6ux", s->name, s->size, n, 0);
+		print("span1 %s %lld (%d tries)\n %.6ux", s->name, s->size, n, 0);
 		for(i=0; i<s->np; i++) {
 			print(" %.2ux", s->p[i]);
 			if(i%16 == 15)
@@ -1276,7 +1276,7 @@ span8(Link *ctxt, LSym *s)
 			Reloc *r;
 			
 			r = &s->r[i];
-			print(" rel %#.4ux/%d %s%+d\n", r->off, r->siz, r->sym->name, r->add);
+			print(" rel %#.4ux/%d %s%+lld\n", r->off, r->siz, r->sym->name, r->add);
 		}
 	}
 }

src/liblink/list5.c

@@ -150,7 +150,7 @@ Dconv(Fmt *fp)
 		break;
 
 	case D_CONST2:
-		sprint(str, "$%d-%d", a->offset, a->offset2);
+		sprint(str, "$%lld-%d", a->offset, a->offset2);
 		break;
 
 	case D_SHIFT:
@@ -307,7 +307,7 @@ Nconv(Fmt *fp)
 		break;
 
 	case D_NONE:
-		sprint(str, "%d", a->offset);
+		sprint(str, "%lld", a->offset);
 		break;
 
 	case D_EXTERN:

src/liblink/obj6.c

@@ -647,7 +647,6 @@ stacksplit(Link *ctxt, Prog *p, int32 framesize, int32 textarg, Prog **jmpok)
 		q1->pcond = p;
 	}
 
-	q = nil;
 	q1 = nil;
 	if(framesize <= StackSmall) {
 		// small stack: SP <= stackguard

src/liblink/pcln.c

@@ -29,7 +29,7 @@ addvarint(Link *ctxt, Pcdata *d, uint32 val)
 	p = d->p + d->n;
 	for(v = val; v >= 0x80; v >>= 7)
 		*p++ = v | 0x80;
-	*p++ = v;
+	*p = v;
 	d->n += n;
 }