7066584491
This patch adds the ability for ScriptedThread to load artificial stack frames. To do so, the interpreter instance can create a list that will contain the frame index and its pc address. Then, when the Scripted Process plugin stops, it will refresh its Scripted Threads state by invalidating their register context and load to list from the interpreter object and reconstruct each frame. This patch also removes all of the default implementation for `get_stackframes` from the derived ScriptedThread classes, and add the interface code for the Scripted Thread Interface. rdar://88721095 Differential Revision: https://reviews.llvm.org/D119388 Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
78 lines
2.4 KiB
Python
78 lines
2.4 KiB
Python
import os,struct, signal
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from typing import Any, Dict
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import lldb
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from lldb.plugins.scripted_process import ScriptedProcess
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from lldb.plugins.scripted_process import ScriptedThread
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class DummyScriptedProcess(ScriptedProcess):
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def __init__(self, target: lldb.SBTarget, args : lldb.SBStructuredData):
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super().__init__(target, args)
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self.threads[0] = DummyScriptedThread(self, None)
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def get_memory_region_containing_address(self, addr: int) -> lldb.SBMemoryRegionInfo:
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return None
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def get_thread_with_id(self, tid: int):
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return {}
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def get_registers_for_thread(self, tid: int):
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return {}
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def read_memory_at_address(self, addr: int, size: int) -> lldb.SBData:
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data = lldb.SBData().CreateDataFromCString(
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self.target.GetByteOrder(),
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self.target.GetCodeByteSize(),
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"Hello, world!")
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return data
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def get_loaded_images(self):
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return self.loaded_images
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def get_process_id(self) -> int:
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return 42
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def should_stop(self) -> bool:
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return True
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def is_alive(self) -> bool:
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return True
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def get_scripted_thread_plugin(self):
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return DummyScriptedThread.__module__ + "." + DummyScriptedThread.__name__
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class DummyScriptedThread(ScriptedThread):
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def __init__(self, process, args):
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super().__init__(process, args)
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self.frames.append({"pc": 0x0100001b00 })
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def get_thread_id(self) -> int:
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return 0x19
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def get_name(self) -> str:
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return DummyScriptedThread.__name__ + ".thread-1"
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def get_state(self) -> int:
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return lldb.eStateStopped
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def get_stop_reason(self) -> Dict[str, Any]:
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return { "type": lldb.eStopReasonSignal, "data": {
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"signal": signal.SIGINT
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} }
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def get_register_context(self) -> str:
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return struct.pack(
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'21Q', 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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def __lldb_init_module(debugger, dict):
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if not 'SKIP_SCRIPTED_PROCESS_LAUNCH' in os.environ:
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debugger.HandleCommand(
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"process launch -C %s.%s" % (__name__,
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DummyScriptedProcess.__name__))
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else:
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print("Name of the class that will manage the scripted process: '%s.%s'"
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% (__name__, DummyScriptedProcess.__name__))
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