werat created this revision. werat requested review of this revision. Herald added a project: LLDB. Herald added a subscriber: lldb-commits.
Use `GetSelectedExecutionContext()` instead of `GetCommandInterpreter().GetExecutionContext()` in `SBDebugger::GetInternalVariableValue/SBDebugger::SetInternalVariable`. The execution context in the command interpreter might be empty, if no commands has been executed yet (it is updated only when handling commands or completions -- e.g. https://github.com/llvm/llvm-project/blob/main/lldb/source/Interpreter/CommandInterpreter.cpp#L1855). Repository: rG LLVM Github Monorepo https://reviews.llvm.org/D95761 Files: lldb/source/API/SBDebugger.cpp lldb/test/API/python_api/debugger/TestDebuggerAPI.py Index: lldb/test/API/python_api/debugger/TestDebuggerAPI.py =================================================================== --- lldb/test/API/python_api/debugger/TestDebuggerAPI.py +++ lldb/test/API/python_api/debugger/TestDebuggerAPI.py @@ -43,3 +43,35 @@ target = lldb.SBTarget() self.assertFalse(target.IsValid()) self.dbg.DeleteTarget(target) + + @add_test_categories(['pyapi']) + def test_debugger_internal_variables(self): + debugger_name = self.dbg.GetInstanceName() + + # Set a variable and check it was written successfully. + error = lldb.SBDebugger.SetInternalVariable( + 'target.prefer-dynamic-value', 'no-dynamic-values', debugger_name) + self.assertTrue(error.Success()) + ret = lldb.SBDebugger.GetInternalVariableValue( + 'target.prefer-dynamic-value', debugger_name) + self.assertEqual(ret.GetSize(), 1) + self.assertEqual(ret.GetStringAtIndex(0), 'no-dynamic-values') + + # Set a variable with a different value. + error = lldb.SBDebugger.SetInternalVariable( + 'target.prefer-dynamic-value', 'no-run-target', debugger_name) + self.assertTrue(error.Success()) + ret = lldb.SBDebugger.GetInternalVariableValue( + 'target.prefer-dynamic-value', debugger_name) + self.assertEqual(ret.GetSize(), 1) + self.assertEqual(ret.GetStringAtIndex(0), 'no-run-target') + + # Try setting invalid value, check for error. + error = lldb.SBDebugger.SetInternalVariable( + 'target.prefer-dynamic-value', 'dummy-value', debugger_name) + self.assertTrue(error.Fail()) + # Check that the value didn't change. + ret = lldb.SBDebugger.GetInternalVariableValue( + 'target.prefer-dynamic-value', debugger_name) + self.assertEqual(ret.GetSize(), 1) + self.assertEqual(ret.GetStringAtIndex(0), 'no-run-target') Index: lldb/source/API/SBDebugger.cpp =================================================================== --- lldb/source/API/SBDebugger.cpp +++ lldb/source/API/SBDebugger.cpp @@ -1278,8 +1278,7 @@ ConstString(debugger_instance_name))); Status error; if (debugger_sp) { - ExecutionContext exe_ctx( - debugger_sp->GetCommandInterpreter().GetExecutionContext()); + ExecutionContext exe_ctx(debugger_sp->GetSelectedExecutionContext()); error = debugger_sp->SetPropertyValue(&exe_ctx, eVarSetOperationAssign, var_name, value); } else { @@ -1303,8 +1302,7 @@ ConstString(debugger_instance_name))); Status error; if (debugger_sp) { - ExecutionContext exe_ctx( - debugger_sp->GetCommandInterpreter().GetExecutionContext()); + ExecutionContext exe_ctx(debugger_sp->GetSelectedExecutionContext()); lldb::OptionValueSP value_sp( debugger_sp->GetPropertyValue(&exe_ctx, var_name, false, error)); if (value_sp) {
Index: lldb/test/API/python_api/debugger/TestDebuggerAPI.py =================================================================== --- lldb/test/API/python_api/debugger/TestDebuggerAPI.py +++ lldb/test/API/python_api/debugger/TestDebuggerAPI.py @@ -43,3 +43,35 @@ target = lldb.SBTarget() self.assertFalse(target.IsValid()) self.dbg.DeleteTarget(target) + + @add_test_categories(['pyapi']) + def test_debugger_internal_variables(self): + debugger_name = self.dbg.GetInstanceName() + + # Set a variable and check it was written successfully. + error = lldb.SBDebugger.SetInternalVariable( + 'target.prefer-dynamic-value', 'no-dynamic-values', debugger_name) + self.assertTrue(error.Success()) + ret = lldb.SBDebugger.GetInternalVariableValue( + 'target.prefer-dynamic-value', debugger_name) + self.assertEqual(ret.GetSize(), 1) + self.assertEqual(ret.GetStringAtIndex(0), 'no-dynamic-values') + + # Set a variable with a different value. + error = lldb.SBDebugger.SetInternalVariable( + 'target.prefer-dynamic-value', 'no-run-target', debugger_name) + self.assertTrue(error.Success()) + ret = lldb.SBDebugger.GetInternalVariableValue( + 'target.prefer-dynamic-value', debugger_name) + self.assertEqual(ret.GetSize(), 1) + self.assertEqual(ret.GetStringAtIndex(0), 'no-run-target') + + # Try setting invalid value, check for error. + error = lldb.SBDebugger.SetInternalVariable( + 'target.prefer-dynamic-value', 'dummy-value', debugger_name) + self.assertTrue(error.Fail()) + # Check that the value didn't change. + ret = lldb.SBDebugger.GetInternalVariableValue( + 'target.prefer-dynamic-value', debugger_name) + self.assertEqual(ret.GetSize(), 1) + self.assertEqual(ret.GetStringAtIndex(0), 'no-run-target') Index: lldb/source/API/SBDebugger.cpp =================================================================== --- lldb/source/API/SBDebugger.cpp +++ lldb/source/API/SBDebugger.cpp @@ -1278,8 +1278,7 @@ ConstString(debugger_instance_name))); Status error; if (debugger_sp) { - ExecutionContext exe_ctx( - debugger_sp->GetCommandInterpreter().GetExecutionContext()); + ExecutionContext exe_ctx(debugger_sp->GetSelectedExecutionContext()); error = debugger_sp->SetPropertyValue(&exe_ctx, eVarSetOperationAssign, var_name, value); } else { @@ -1303,8 +1302,7 @@ ConstString(debugger_instance_name))); Status error; if (debugger_sp) { - ExecutionContext exe_ctx( - debugger_sp->GetCommandInterpreter().GetExecutionContext()); + ExecutionContext exe_ctx(debugger_sp->GetSelectedExecutionContext()); lldb::OptionValueSP value_sp( debugger_sp->GetPropertyValue(&exe_ctx, var_name, false, error)); if (value_sp) {
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