switch to using runner instead of preload_tracer

src/runner.ts

@@ -203,18 +203,16 @@ program
         );
       }
 
-      // On macos include the path to preload_tracer in the env as that
-      // executable is needed to trace when System Integrity Protection is enabled.
-      if (process.platform === "darwin") {
-        const codeqlDist = tracerConfig.env["CODEQL_DIST"];
-        const codeqlPlatform = tracerConfig.env["CODEQL_PLATFORM"];
-        tracerConfig.env["CODEQL_PRELOAD_TRACER"] = path.join(
-          codeqlDist,
-          "tools",
-          codeqlPlatform,
-          "preload_tracer"
-        );
-      }
+      // On macos it's necessary to prefix the build command with the runner exectuable
+      // on order to trace when System Integrity Protection is enabled.
+      // The exectuable also exists and works for other platforms so we output this env
+      // var with a path to the runner regardless so it's always available.
+      tracerConfig.env["CODEQL_RUNNER"] = path.join(
+        tracerConfig.env["CODEQL_DIST"],
+        "tools",
+        tracerConfig.env["CODEQL_PLATFORM"],
+        "runner"
+      );
 
       // Always output a json file of the env that can be consumed programmatically
       const jsonEnvFile = path.join(config.tempDir, codeqlEnvJsonFilename);