shithub: loong

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ref: a2ad59b340bf3339dbba105310002474b98d0184
parent: 8287e0cd29d9afdb41efa029705644f8427cf53a
author: kws <kws@cirno>
date: Tue Jan 2 21:14:53 EST 2024 

libmach: handle VCONST


--- a/sys/src/libmach/zobj.c
+++ b/sys/src/libmach/zobj.c
@@ -81,7 +81,8 @@
 addr(Biobuf *bp)
 {
 	Addr a;
-	long off;
+	vlong off;
+	long l;
 
 	a.type = Bgetc(bp);	/* a.type */
 	skip(bp,1);		/* reg */
@@ -98,10 +99,20 @@
 	case D_OREG:
 	case D_CONST:
 	case D_BRANCH:
-		off = Bgetc(bp);
-		off |= Bgetc(bp) << 8;
-		off |= Bgetc(bp) << 16;
-		off |= Bgetc(bp) << 24;
+	case D_VCONST:
+		l = Bgetc(bp);
+		l |= Bgetc(bp) << 8;
+		l |= Bgetc(bp) << 16;
+		l |= Bgetc(bp) << 24;
+		off = l;
+		if(a.type == D_VCONST){
+			l = Bgetc(bp);
+			l |= Bgetc(bp) << 8;
+			l |= Bgetc(bp) << 16;
+			l |= Bgetc(bp) << 24;
+			off = ((vlong)l << 32) | (off & 0xFFFFFFFF);
+			a.type = D_CONST;		/* perhaps */
+		}
 		if(off < 0)
 			off = -off;
 		if(a.sym && (a.name==D_PARAM || a.name==D_AUTO))