stack offset

SVN=123521
diff --git a/src/cmd/6l/obj.c b/src/cmd/6l/obj.c
index 47339fe..83fae2e 100644
--- a/src/cmd/6l/obj.c
+++ b/src/cmd/6l/obj.c
@@ -400,6 +400,7 @@
 			doprof1();
 		else
 			doprof2();
+	addstackmark();
 	span();
 	doinit();
 	asmb();
@@ -925,9 +926,9 @@
 			sig = 1729;
 		if(sig != 0){
 			if(s->sig != 0 && s->sig != sig)
-				diag("incompatible type signatures %lux(%s)"
-					"and %lux(%s) for %s", s->sig,
-					filen[s->file], sig, pn, s->name);
+				diag("incompatible type signatures"
+					"%lux(%s) and %lux(%s) for %s",
+					s->sig, filen[s->file], sig, pn, s->name);
 			s->sig = sig;
 			s->file = files-1;
 		}