From 4e3a03078a222b6d37c597bf4e619b0713c85e30 Mon Sep 17 00:00:00 2001 From: Joran Honig Date: Wed, 23 Oct 2019 15:21:29 +0200 Subject: [PATCH] change hooks used by function summarisation and provide necessary implementation --- .../plugins/implementations/summary/core.py | 28 ++++++++++++++----- 1 file changed, 21 insertions(+), 7 deletions(-) diff --git a/mythril/laser/ethereum/plugins/implementations/summary/core.py b/mythril/laser/ethereum/plugins/implementations/summary/core.py index 4cf30600..ad180add 100644 --- a/mythril/laser/ethereum/plugins/implementations/summary/core.py +++ b/mythril/laser/ethereum/plugins/implementations/summary/core.py @@ -1,5 +1,6 @@ from mythril.laser.ethereum.svm import LaserEVM from mythril.laser.ethereum.plugins.plugin import LaserPlugin +from mythril.laser.ethereum.transaction.transaction_models import ContractCreationTransaction, BaseTransaction from mythril.laser.ethereum.state.annotation import StateAnnotation from mythril.laser.ethereum.state.global_state import GlobalState from mythril.laser.ethereum.state.account import Account @@ -68,13 +69,26 @@ class SymbolicSummaryPlugin(LaserPlugin): # Print results log.info("Generated 0 summaries") - @symbolic_vm.laser_hook("start_sym_trans") - def execute_start_sym_trans_hook(): - pass - - @symbolic_vm.laser_hook("stop_sym_trans") - def execute_stop_sym_trans_hook(): - pass + @symbolic_vm.laser_hook("execute_state") + def execute_start_sym_trans_hook(global_state: GlobalState): + if global_state.mstate.pc == 0: + self.summary_entry(global_state) + + @symbolic_vm.laser_hook("transaction_end") + def execute_transaction_end_hook( + global_state: GlobalState, + transaction: BaseTransaction, + return_global_state:Optional[GlobalState], + revert: bool, + ): + if return_global_state is not None: + return + + if ( + not isinstance(transaction, ContractCreationTransaction) + or transaction.return_data + ) and not revert: + self.summary_exit(global_state) def summary_entry(self, global_state: GlobalState): """ Handles logic for when the analysis reaches an entry point of a to-be recorded symbolic summary