[lldb-dap] support moduleId in the stackTrace response (#149774)

This PR resolves #149316

---------

Co-authored-by: Ebuka Ezike <[email protected]>

Author: woruyu

lldb/test/API/tools/lldb-dap/coreFile/TestDAP_coreFile.py

@@ -26,6 +26,7 @@ def test_core_file(self):
                 "column": 0,
                 "id": 524288,
                 "line": 4,
+                "moduleId": "01DF54A6-045E-657D-3F8F-FB9CE1118789-14F8BD6D",
                 "name": "bar",
                 "source": {"name": "main.c", "path": "/home/labath/test/main.c"},
                 "instructionPointerReference": "0x40011C",
@@ -34,6 +35,7 @@ def test_core_file(self):
                 "column": 0,
                 "id": 524289,
                 "line": 10,
+                "moduleId": "01DF54A6-045E-657D-3F8F-FB9CE1118789-14F8BD6D",
                 "name": "foo",
                 "source": {"name": "main.c", "path": "/home/labath/test/main.c"},
                 "instructionPointerReference": "0x400142",
@@ -42,6 +44,7 @@ def test_core_file(self):
                 "column": 0,
                 "id": 524290,
                 "line": 16,
+                "moduleId": "01DF54A6-045E-657D-3F8F-FB9CE1118789-14F8BD6D",
                 "name": "_start",
                 "source": {"name": "main.c", "path": "/home/labath/test/main.c"},
                 "instructionPointerReference": "0x40015F",

lldb/test/API/tools/lldb-dap/stackTrace/TestDAP_stackTrace.py

@@ -242,3 +242,36 @@ def test_StackFrameFormat(self):
 
         frame = self.get_stackFrames(format={"parameters": False, "module": True})[0]
         self.assertEqual(frame["name"], "a.out recurse")
+
+    @skipIfWindows
+    def test_stack_frame_module_id(self):
+        program = self.getBuildArtifact("a.out")
+        self.build_and_launch(program)
+        source = "main.c"
+        lines = [line_number(source, "recurse end")]
+        breakpoint_ids = self.set_source_breakpoints(source, lines)
+        self.assertEqual(
+            len(breakpoint_ids), len(lines), "expect correct number of breakpoints"
+        )
+
+        self.continue_to_breakpoints(breakpoint_ids)
+
+        modules = self.dap_server.get_modules()
+        name_to_id = {
+            name: info["id"] for name, info in modules.items() if "id" in info
+        }
+
+        stack_frames = self.get_stackFrames()
+        for frame in stack_frames:
+            module_id = frame.get("moduleId")
+            source_name = frame.get("source", {}).get("name")
+            if module_id is None or source_name is None:
+                continue
+
+            if source_name in name_to_id:
+                expected_id = name_to_id[source_name]
+                self.assertEqual(
+                    module_id,
+                    expected_id,
+                    f"Expected moduleId '{expected_id}' for {source_name}, got: {module_id}",
+                )

lldb/tools/lldb-dap/JSONUtils.cpp

@@ -550,6 +550,13 @@ llvm::json::Value CreateStackFrame(DAP &dap, lldb::SBFrame &frame,
   if (frame.IsArtificial() || frame.IsHidden())
     object.try_emplace("presentationHint", "subtle");
 
+  lldb::SBModule module = frame.GetModule();
+  if (module.IsValid()) {
+    std::string uuid = module.GetUUIDString();
+    if (!uuid.empty())
+      object.try_emplace("moduleId", uuid);
+  }
+
   return llvm::json::Value(std::move(object));
 }