Fix custom labels for node v25 (#165)

Author: umanwizard

interpreter/customlabels/integrationtests/node_test.go

@@ -56,13 +56,14 @@ func TestIntegration(t *testing.T) {
 	}
 
 	for _, nodeVersion := range []string{
-		// As of today, node:latest is v24.6.0
+		// As of today, node:latest is v25.0.0
 		// Eventually, it will be something where the offsets have changed,
 		// and start failing. At that point, update the list of offsets
-		// so this passes, and also add a test for the latest v24 if latest
-		// is on v25 by then.
+		// so this passes, and also add a test for the latest v25 if latest
+		// is on v26 by then.
 		"latest",
 		"22.19.0",
+		"24.10.0",
 	} {
 		name := "node-" + nodeVersion
 		t.Run(name, func(t *testing.T) {

interpreter/nodev8/v8.go

@@ -2127,13 +2127,19 @@ func (d *v8Data) loadNodeClData(ef *pfelf.File) error {
 
 	major := binary.LittleEndian.Uint32(versBuf[0:4])
 
+	// These offsets are computed by pointing a libclang script at a Node build directory
+	// with a valid compile_commands.json:
+	// see e.g. https://gist.github.com/umanwizard/a9e055a7cc1b81248bbf17501c749481 .
 	if major >= 22 {
 		if major < 24 {
 			d.cpedOffset = 576
 			d.wrappedObjectOffset = 24
-		} else {
+		} else if major < 25 {
 			d.cpedOffset = 632
 			d.wrappedObjectOffset = 32
+		} else {
+			d.cpedOffset = 640
+			d.wrappedObjectOffset = 32
 		}
 		return nil
 	}