================
@@ -314,3 +314,69 @@ def get_frame_at_index(self, index):
# Pass through original frames
return index - 3
return None
+
+
+class ValidPCNoModuleFrame(ScriptedFrame):
+ """Scripted frame with a valid PC but no associated module."""
+
+ def __init__(self, thread, idx, pc, function_name):
+ args = lldb.SBStructuredData()
+ super().__init__(thread, args)
+
+ self.idx = idx
+ self.pc = pc
+ self.function_name = function_name
+
+ def get_id(self):
+ """Return the frame index."""
+ return self.idx
+
+ def get_pc(self):
+ """Return the program counter."""
+ return self.pc
+
+ def get_function_name(self):
+ """Return the function name."""
+ return self.function_name
+
+ def is_artificial(self):
+ """Not artificial."""
+ return False
+
+ def is_hidden(self):
+ """Not hidden."""
+ return False
+
+ def get_register_context(self):
+ """No register context."""
+ return None
+
+
+class ValidPCNoModuleFrameProvider(ScriptedFrameProvider):
+ """
+ Provider that demonstrates frames with valid PC but no module.
+
+ This tests that backtrace output handles frames that have a valid
+ program counter but cannot be resolved to any loaded module.
+ """
+
+ def __init__(self, input_frames, args):
+ super().__init__(input_frames, args)
+
+ @staticmethod
+ def get_description():
+ """Return a description of this provider."""
+ return "Provider that prepends frames with valid PC but no module"
+
+ def get_frame_at_index(self, index):
+ """Return frames with valid PCs but no module information."""
+ if index == 0:
+ # Frame with valid PC (0x1234000) but no module
+ return ValidPCNoModuleFrame(self.thread, 0, 0x1234000,
"unknown_function_1")
+ elif index == 1:
+ # Another frame with valid PC (0x5678000) but no module
+ return ValidPCNoModuleFrame(self.thread, 1, 0x5678000,
"unknown_function_2")
+ elif index - 2 < len(self.input_frames):
+ # Pass through original frames
+ return index - 2
----------------
DavidSpickett wrote:
Not familiar with the details, but I'd expect to return some frame object here
to follow the pattern of the rest.
If it returns a number does something else look that up in the real frames?
https://github.com/llvm/llvm-project/pull/172767
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