src: support stub frames

src/llv8-constants.cc

@@ -522,6 +522,7 @@ void Frame::Load() {
   kConstructFrame = LoadConstant("frametype_ConstructFrame");
   kJSFrame = LoadConstant("frametype_JavaScriptFrame");
   kOptimizedFrame = LoadConstant("frametype_OptimizedFrame");
+  kStubFrame = LoadConstant("frametype_StubFrame");
 }
 
 

src/llv8-constants.h

@@ -452,6 +452,7 @@ class Frame : public Module {
   int64_t kConstructFrame;
   int64_t kJSFrame;
   int64_t kOptimizedFrame;
+  int64_t kStubFrame;
 
  protected:
   void Load();

src/llv8.cc

@@ -269,6 +269,8 @@ std::string JSFrame::Inspect(bool with_args, Error& err) {
       return "<internal>";
     } else if (value == v8()->frame()->kConstructFrame) {
       return "<constructor>";
+    } else if (value == v8()->frame()->kStubFrame) {
+      return "<stub>";
     } else if (value != v8()->frame()->kJSFrame &&
                value != v8()->frame()->kOptimizedFrame) {
       err = Error::Failure("Unknown frame marker");

test/frame-test.js

@@ -18,7 +18,7 @@ tape('v8 stack', (t) => {
     // FIXME(bnoordhuis) This can fail with versions of lldb that don't
     // support the GetMemoryRegions() API; llnode won't be able to identify
     // V8 builtins stack frames, it just prints them as anonymous frames.
-    lines = lines.filter((s) => !/<builtin>/.test(s));
+    lines = lines.filter((s) => !/<builtin>|<stub>/.test(s));
     const eyecatcher = lines[0];
     const adapter = lines[1];
     const crasher = lines[2];