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| author | Péter Szilágyi <peterke@gmail.com> | 2018-11-08 20:26:04 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-11-08 20:26:04 +0800 |
| commit | d0675e9d9cf847070c1e422faf15e66b6af74781 (patch) | |
| tree | a2aea44d4022657297049b1ed9f4aaeab0d901ac /core | |
| parent | bd519ab8aec7c82b28fb2a7e7edc428d8a38e781 (diff) | |
| parent | 1b6fd032e3def058133161a45a000dae4d0db729 (diff) | |
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Merge pull request #17982 from holiman/polish_contantinople_extcodehash
core/vm: check empty in extcodehash
Diffstat (limited to 'core')
| -rw-r--r-- | core/vm/instructions.go | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/core/vm/instructions.go b/core/vm/instructions.go index b7c3ca532..6696c6e3d 100644 --- a/core/vm/instructions.go +++ b/core/vm/instructions.go @@ -544,7 +544,12 @@ func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, contract *Contract, // this account should be regarded as a non-existent account and zero should be returned. func opExtCodeHash(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { slot := stack.peek() - slot.SetBytes(interpreter.evm.StateDB.GetCodeHash(common.BigToAddress(slot)).Bytes()) + address := common.BigToAddress(slot) + if interpreter.evm.StateDB.Empty(address) { + slot.SetUint64(0) + } else { + slot.SetBytes(interpreter.evm.StateDB.GetCodeHash(address).Bytes()) + } return nil, nil } |