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authorgary rong <garyrong0905@gmail.com>2018-07-24 22:22:03 +0800
committerPéter Szilágyi <peterke@gmail.com>2018-07-24 22:22:03 +0800
commitcab1cff11cbcd4ff60f1a149deb71ec87413b487 (patch)
tree2e7c89b0a541a03e23294d4b444892a9420cbc9c /core/vm/instructions.go
parent2909f6d7a2ceb5b1cdeb4cc3966531018a0b8334 (diff)
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core, crypto, params: implement CREATE2 evm instrction (#17196)
* core, crypto, params: implement CREATE2 evm instrction * core/vm: add opcode to string mapping * core: remove past fork checking * core, crypto: use option2 to generate new address
Diffstat (limited to 'core/vm/instructions.go')
-rw-r--r--core/vm/instructions.go28
1 files changed, 28 insertions, 0 deletions
diff --git a/core/vm/instructions.go b/core/vm/instructions.go
index 1ec13ba35..b25c0111a 100644
--- a/core/vm/instructions.go
+++ b/core/vm/instructions.go
@@ -665,6 +665,34 @@ func opCreate(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *S
return nil, nil
}
+func opCreate2(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
+ var (
+ endowment = stack.pop()
+ offset, size = stack.pop(), stack.pop()
+ salt = stack.pop()
+ input = memory.Get(offset.Int64(), size.Int64())
+ gas = contract.Gas
+ )
+
+ // Apply EIP150
+ gas -= gas / 64
+ contract.UseGas(gas)
+ res, addr, returnGas, suberr := evm.Create2(contract, input, gas, endowment, salt)
+ // Push item on the stack based on the returned error.
+ if suberr != nil {
+ stack.push(evm.interpreter.intPool.getZero())
+ } else {
+ stack.push(addr.Big())
+ }
+ contract.Gas += returnGas
+ evm.interpreter.intPool.put(endowment, offset, size, salt)
+
+ if suberr == errExecutionReverted {
+ return res, nil
+ }
+ return nil, nil
+}
+
func opCall(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
// Pop gas. The actual gas in in evm.callGasTemp.
evm.interpreter.intPool.put(stack.pop())