a3d4f739ee
This patch should address a bug when a user have multiple scripted processes in the same debugging session. In order for the scripted process plugin to be able to call into the scripted object instance methods to fetch the necessary data to reconstruct its state, the scripted process plugin calls into a scripted process interface, that has a reference to the created script object instance. However, prior to this patch, we only had a single instance of the scripted process interface, living the script interpreter. So every time a new scripted process plugin was created, it would overwrite the script object instance that was held by the single scripted process interface in the script interpreter. That would cause all the method calls made to the scripted process interface to be dispatched by the last instanciated script object instance, which is wrong. In order to prevent that, this patch moves the scripted process interface reference to be help by the scripted process plugin itself. rdar://104882562 Differential Revision: https://reviews.llvm.org/D143308 Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
import os,struct, signal
|
|
|
|
from typing import Any, Dict
|
|
|
|
import lldb
|
|
from lldb.plugins.scripted_process import ScriptedProcess
|
|
from lldb.plugins.scripted_process import ScriptedThread
|
|
|
|
class DummyScriptedProcess(ScriptedProcess):
|
|
def __init__(self, exe_ctx: lldb.SBExecutionContext, args : lldb.SBStructuredData):
|
|
super().__init__(exe_ctx, args)
|
|
self.threads[0] = DummyScriptedThread(self, None)
|
|
|
|
def get_memory_region_containing_address(self, addr: int) -> lldb.SBMemoryRegionInfo:
|
|
return None
|
|
|
|
def get_thread_with_id(self, tid: int):
|
|
return {}
|
|
|
|
def get_registers_for_thread(self, tid: int):
|
|
return {}
|
|
|
|
def read_memory_at_address(self, addr: int, size: int, error: lldb.SBError) -> lldb.SBData:
|
|
debugger = self.target.GetDebugger()
|
|
index = debugger.GetIndexOfTarget(self.target)
|
|
data = lldb.SBData().CreateDataFromCString(
|
|
self.target.GetByteOrder(),
|
|
self.target.GetCodeByteSize(),
|
|
"Hello, target " + str(index))
|
|
|
|
return data
|
|
|
|
def get_loaded_images(self):
|
|
return self.loaded_images
|
|
|
|
def get_process_id(self) -> int:
|
|
return 42
|
|
|
|
def should_stop(self) -> bool:
|
|
return True
|
|
|
|
def is_alive(self) -> bool:
|
|
return True
|
|
|
|
def get_scripted_thread_plugin(self):
|
|
return DummyScriptedThread.__module__ + "." + DummyScriptedThread.__name__
|
|
|
|
def my_super_secret_method(self):
|
|
if hasattr(self, 'my_super_secret_member'):
|
|
return self.my_super_secret_member
|
|
else:
|
|
return None
|
|
|
|
|
|
class DummyScriptedThread(ScriptedThread):
|
|
def __init__(self, process, args):
|
|
super().__init__(process, args)
|
|
self.frames.append({"pc": 0x0100001b00 })
|
|
|
|
def get_thread_id(self) -> int:
|
|
return 0x19
|
|
|
|
def get_name(self) -> str:
|
|
return DummyScriptedThread.__name__ + ".thread-1"
|
|
|
|
def get_state(self) -> int:
|
|
return lldb.eStateStopped
|
|
|
|
def get_stop_reason(self) -> Dict[str, Any]:
|
|
return { "type": lldb.eStopReasonSignal, "data": {
|
|
"signal": signal.SIGINT
|
|
} }
|
|
|
|
def get_register_context(self) -> str:
|
|
return struct.pack(
|
|
'21Q', 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
|
|
|
|
|
|
def __lldb_init_module(debugger, dict):
|
|
if not 'SKIP_SCRIPTED_PROCESS_LAUNCH' in os.environ:
|
|
debugger.HandleCommand(
|
|
"process launch -C %s.%s" % (__name__,
|
|
DummyScriptedProcess.__name__))
|
|
else:
|
|
print("Name of the class that will manage the scripted process: '%s.%s'"
|
|
% (__name__, DummyScriptedProcess.__name__))
|