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Verkle EXTCODECOPY implementation (#55)

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* core/vm: verkle extcodecopy naive way (do jumpdest analysis on target contract every EXTCODECOPY)

* no double-charge

* address edge-case in touchEachChunksAndChargeGas

* simplify line

Co-authored-by: Guillaume Ballet <3272758+gballet@users.noreply.github.com>
This commit is contained in:
jwasinger
2022-01-13 02:06:21 -10:00
committed by GitHub
parent d761880fd2
commit 952be80177
5 changed files with 29 additions and 22 deletions
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2
core/vm/interpreter.go
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@ -194,7 +194,7 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
if in.evm.TxContext.Accesses != nil && !contract.IsDeployment {
// if the PC ends up in a new "page" of verkleized code, charge the
// associated witness costs.
contract.Gas -= touchEachChunksAndChargeGas(pc, 1, contract.Address().Bytes()[:], contract, in.evm.TxContext.Accesses)
contract.Gas -= touchEachChunksAndChargeGas(pc, 1, contract.Address().Bytes()[:], contract.Code, contract, in.evm.TxContext.Accesses)
}
// TODO how can we tell if we are in stateless mode here and need to get the op from the witness