Missing EIP-4399 RANDOM opcode info

[fedekunze]

The EVM is currently missing the Random field on the vm.BlockContext that provides information for the RANDOM opcode as defined in EIP-4399

// NewEVM generates a go-ethereum VM from the provided Message fields and the chain parameters
// (ChainConfig and module Params). It additionally sets the validator operator address as the
// coinbase address to make it available for the COINBASE opcode, even though there is no
// beneficiary of the coinbase transaction (since we're not mining).
func (k *Keeper) NewEVM(
	ctx sdk.Context,
	msg core.Message,
	cfg *types.EVMConfig,
	tracer vm.EVMLogger,
	stateDB vm.StateDB,
) evm.EVM {
	blockCtx := vm.BlockContext{
		CanTransfer: core.CanTransfer,
		Transfer:    core.Transfer,
		GetHash:     k.GetHashFn(ctx),
		Coinbase:    cfg.CoinBase,
		GasLimit:    ethermint.BlockGasLimit(ctx),
		BlockNumber: big.NewInt(ctx.BlockHeight()),
		Time:        big.NewInt(ctx.BlockHeader().Time.Unix()),
		Difficulty:  big.NewInt(0), // unused. Only required in PoW context
		BaseFee:     cfg.BaseFee,
		Random:      nil,		 // <--- missing 
	}

	txCtx := core.NewEVMTxContext(msg)
	if tracer == nil {
		tracer = k.Tracer(ctx, msg, cfg.ChainConfig)
	}
	vmConfig := k.VMConfig(ctx, msg, cfg, tracer)
	return k.evmConstructor(blockCtx, txCtx, stateDB, cfg.ChainConfig, vmConfig, k.customPrecompiles)
}

Ref: ethereum/go-ethereum#24141

[VictorTrustyDev]

Btw: evm proto ChainConfig is currently missing merge_fork_block, which defined in genesis.json, is one of the bugs that block evmos validate-genesis command

[github-actions]

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