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core/vm: fixed statdb issue for copy & return

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This commit is contained in:
Jeffrey Wilcke 2016-10-04 12:00:31 +02:00
parent 4573773a91
commit a80800f56b
1 changed files with 4 additions and 5 deletions
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9
core/vm/vm.go
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@ -113,10 +113,9 @@ func (evm *EVM) Run(contract *Contract, input []byte) (ret []byte, err error) {
code = contract.Code code = contract.Code
instrCount = 0 instrCount = 0
op OpCode // current opcode op OpCode // current opcode
mem = NewMemory() // bound memory mem = NewMemory() // bound memory
stack = newstack() // local stack stack = newstack() // local stack
statedb = evm.env.Db() // current state
// For optimisation reason we're using uint64 as the program counter. // For optimisation reason we're using uint64 as the program counter.
// It's theoretically possible to go above 2^64. The YP defines the PC to be uint256. Practically much less so feasible. // It's theoretically possible to go above 2^64. The YP defines the PC to be uint256. Practically much less so feasible.
pc = uint64(0) // program counter pc = uint64(0) // program counter
@ -169,7 +168,7 @@ func (evm *EVM) Run(contract *Contract, input []byte) (ret []byte, err error) {
// Get the memory location of pc // Get the memory location of pc
op = contract.GetOp(pc) op = contract.GetOp(pc)
// calculate the new memory size and gas price for the current executing opcode // calculate the new memory size and gas price for the current executing opcode
newMemSize, cost, err = calculateGasAndSize(evm.env, contract, caller, op, statedb, mem, stack) newMemSize, cost, err = calculateGasAndSize(evm.env, contract, caller, op, evm.env.Db(), mem, stack)
if err != nil { if err != nil {
return nil, err return nil, err
} }