mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
b8ad2b2718
Model revert in yul interpreter. Add logTrace for a few more instructions and clear trace on revert.
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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// SPDX-License-Identifier: GPL-3.0
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#include <test/tools/yulInterpreter/Interpreter.h>
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#include <libyul/backends/evm/EVMDialect.h>
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namespace solidity::yul::test::yul_fuzzer
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{
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struct yulFuzzerUtil
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{
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enum class TerminationReason
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{
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ExplicitlyTerminated,
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StepLimitReached,
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TraceLimitReached,
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ExpresionNestingLimitReached,
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None
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};
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/// Interprets the Yul AST pointed to by @param _ast. Flag @param _outputStorageOnly
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/// (unset by default) outputs an execution trace of both memory and storage;
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/// if set, only storage contents are output as part of the execution trace. The
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/// latter avoids false positives that will be produced by the fuzzer when certain
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/// optimizer steps are activated e.g., Redundant store eliminator, Equal store
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/// eliminator.
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static TerminationReason interpret(
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std::ostream& _os,
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std::shared_ptr<yul::Block> _ast,
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Dialect const& _dialect,
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bool _disableMemoryTracing = false,
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bool _outputStorageOnly = false,
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size_t _maxSteps = maxSteps,
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size_t _maxTraceSize = maxTraceSize,
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size_t _maxExprNesting = maxExprNesting
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);
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/// @returns true if @param _reason for Yul interpreter terminating is
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/// resource exhaustion of some form e.g., exceeded maximum time-out
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/// threshold, number of nested expressions etc.
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static bool resourceLimitsExceeded(TerminationReason _reason);
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static size_t constexpr maxSteps = 100;
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static size_t constexpr maxTraceSize = 75;
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static size_t constexpr maxExprNesting = 64;
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};
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}
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