feat(asm): emit the loong64 stack-split guard for big frames

asm/goobj.go

@@ -156,6 +156,16 @@ const goobjBuiltinMorestackNoctxt = 246
 // stack-guard call.
 var goobjBuiltinMorestack = "runtime\u00b7morestack_noctxt"
 
+// isCallReloc reports whether k is one of the per-arch call relocations a
+// direct branch to a TEXT symbol carries.
+func isCallReloc(k RelocKind) bool {
+	switch k {
+	case RelCall, RelRISCVJal, RelArm64Branch, RelLoong64Branch:
+		return true
+	}
+	return false
+}
+
 const goobjMagic = "\x00go120ld"
 
 // goSym is one symbol definition under construction.
@@ -436,7 +446,7 @@ func (img *Image) emitGOObject(pkgPath, srcPath string, pre []byte, minLC int, r
 				// A call to a TEXT function of the same file references the
 				// non-package definition table.
 				ni, isText := textNpIdx[r.Name]
-				if !isText || r.Kind != RelCall {
+				if !isText || !isCallReloc(r.Kind) {
 					return nil, fmt.Errorf("GOOBJ emission: reference to unknown symbol %q", r.Name)
 				}
 				pkg = pkgIdxNone