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| author | Jared Wasinger <j-wasinger@hotmail.com> | 2018-07-31 08:54:43 +0800 |
|---|---|---|
| committer | Alex Beregszaszi <alex@rtfs.hu> | 2018-09-26 23:11:02 +0800 |
| commit | c6bd2979b1265cb81d35124a2785e3828658f7cc (patch) | |
| tree | d2c57db0ac0509eba0342ce71ac819758fb62664 /libevmasm | |
| parent | a86e1d187b929124c27365a8f2e185545c4157b1 (diff) | |
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Add assembly support for EXTCODEHASH (EIP-1052)
Diffstat (limited to 'libevmasm')
| -rw-r--r-- | libevmasm/GasMeter.cpp | 1 | ||||
| -rw-r--r-- | libevmasm/Instruction.cpp | 2 | ||||
| -rw-r--r-- | libevmasm/Instruction.h | 1 | ||||
| -rw-r--r-- | libevmasm/SemanticInformation.cpp | 3 |
4 files changed, 7 insertions, 0 deletions
diff --git a/libevmasm/GasMeter.cpp b/libevmasm/GasMeter.cpp index b40617c1..59afc4da 100644 --- a/libevmasm/GasMeter.cpp +++ b/libevmasm/GasMeter.cpp @@ -112,6 +112,7 @@ GasMeter::GasConsumption GasMeter::estimateMax(AssemblyItem const& _item, bool _ gas += wordGas(GasCosts::copyGas, m_state->relativeStackElement(-2)); break; case Instruction::EXTCODESIZE: + case Instruction::EXTCODEHASH: gas = GasCosts::extCodeGas(m_evmVersion); break; case Instruction::EXTCODECOPY: diff --git a/libevmasm/Instruction.cpp b/libevmasm/Instruction.cpp index d5b82e75..46f6c628 100644 --- a/libevmasm/Instruction.cpp +++ b/libevmasm/Instruction.cpp @@ -73,6 +73,7 @@ const std::map<std::string, Instruction> dev::solidity::c_instructions = { "EXTCODECOPY", Instruction::EXTCODECOPY }, { "RETURNDATASIZE", Instruction::RETURNDATASIZE }, { "RETURNDATACOPY", Instruction::RETURNDATACOPY }, + { "EXTCODEHASH", Instruction::EXTCODEHASH }, { "BLOCKHASH", Instruction::BLOCKHASH }, { "COINBASE", Instruction::COINBASE }, { "TIMESTAMP", Instruction::TIMESTAMP }, @@ -216,6 +217,7 @@ static const std::map<Instruction, InstructionInfo> c_instructionInfo = { Instruction::EXTCODECOPY, { "EXTCODECOPY", 0, 4, 0, true, Tier::ExtCode } }, { Instruction::RETURNDATASIZE, {"RETURNDATASIZE", 0, 0, 1, false, Tier::Base } }, { Instruction::RETURNDATACOPY, {"RETURNDATACOPY", 0, 3, 0, true, Tier::VeryLow } }, + { Instruction::EXTCODEHASH, { "EXTCODEHASH", 0, 1, 1, false, Tier::ExtCode } }, { Instruction::BLOCKHASH, { "BLOCKHASH", 0, 1, 1, false, Tier::Ext } }, { Instruction::COINBASE, { "COINBASE", 0, 0, 1, false, Tier::Base } }, { Instruction::TIMESTAMP, { "TIMESTAMP", 0, 0, 1, false, Tier::Base } }, diff --git a/libevmasm/Instruction.h b/libevmasm/Instruction.h index 50c1f47d..63424eeb 100644 --- a/libevmasm/Instruction.h +++ b/libevmasm/Instruction.h @@ -82,6 +82,7 @@ enum class Instruction: uint8_t EXTCODECOPY, ///< copy external code (from another contract) RETURNDATASIZE = 0x3d, ///< get size of return data buffer RETURNDATACOPY = 0x3e, ///< copy return data in current environment to memory + EXTCODEHASH = 0x3f, ///< get external code hash (from another contract) BLOCKHASH = 0x40, ///< get hash of most recent complete block COINBASE, ///< get the block's coinbase address diff --git a/libevmasm/SemanticInformation.cpp b/libevmasm/SemanticInformation.cpp index 71267ee8..78f3c9c7 100644 --- a/libevmasm/SemanticInformation.cpp +++ b/libevmasm/SemanticInformation.cpp @@ -151,6 +151,7 @@ bool SemanticInformation::isDeterministic(AssemblyItem const& _item) case Instruction::MSIZE: // depends on previous writes and reads, not only on content case Instruction::BALANCE: // depends on previous calls case Instruction::EXTCODESIZE: + case Instruction::EXTCODEHASH: case Instruction::RETURNDATACOPY: // depends on previous calls case Instruction::RETURNDATASIZE: return false; @@ -172,6 +173,7 @@ bool SemanticInformation::movable(Instruction _instruction) case Instruction::KECCAK256: case Instruction::BALANCE: case Instruction::EXTCODESIZE: + case Instruction::EXTCODEHASH: case Instruction::RETURNDATASIZE: case Instruction::SLOAD: case Instruction::PC: @@ -233,6 +235,7 @@ bool SemanticInformation::invalidInPureFunctions(Instruction _instruction) case Instruction::GASPRICE: case Instruction::EXTCODESIZE: case Instruction::EXTCODECOPY: + case Instruction::EXTCODEHASH: case Instruction::BLOCKHASH: case Instruction::COINBASE: case Instruction::TIMESTAMP: |