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221 changes: 221 additions & 0 deletions
221
zkevm-circuits/src/evm_circuit/execution/error_oog_dynamic_memory.rs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,221 @@ | ||
| use crate::{ | ||
| evm_circuit::{ | ||
| execution::ExecutionGadget, | ||
| param::{N_BYTES_GAS, N_BYTES_MEMORY_ADDRESS}, | ||
| step::ExecutionState, | ||
| util::{ | ||
| common_gadget::CommonErrorGadget, | ||
| constraint_builder::{ConstrainBuilderCommon, EVMConstraintBuilder}, | ||
| math_gadget::LtGadget, | ||
| memory_gadget::{ | ||
| CommonMemoryAddressGadget, MemoryExpandedAddressGadget, MemoryExpansionGadget, | ||
| }, | ||
| CachedRegion, Cell, | ||
| }, | ||
| }, | ||
| witness::{Block, Call, ExecStep, Transaction}, | ||
| }; | ||
| use eth_types::{evm_types::OpcodeId, Field}; | ||
| use gadgets::util::{or, Expr}; | ||
| use halo2_proofs::{circuit::Value, plonk::Error}; | ||
|
|
||
| #[derive(Clone, Debug)] | ||
| pub(crate) struct ErrorOOGDynamicMemoryGadget<F> { | ||
| opcode: Cell<F>, | ||
|
|
||
| memory_expansion: MemoryExpansionGadget<F, 1, N_BYTES_MEMORY_ADDRESS>, | ||
| memory_address: MemoryExpandedAddressGadget<F>, | ||
| insufficient_gas: LtGadget<F, N_BYTES_GAS>, | ||
| common_error_gadget: CommonErrorGadget<F>, | ||
| } | ||
|
|
||
| impl<F: Field> ExecutionGadget<F> for ErrorOOGDynamicMemoryGadget<F> { | ||
| const NAME: &'static str = "ErrorOutOfGasDynamicMemoryExpansion"; | ||
| const EXECUTION_STATE: ExecutionState = ExecutionState::ErrorOutOfGasDynamicMemoryExpansion; | ||
|
|
||
| // Support other OOG due to pure memory including RETURN and REVERT | ||
| fn configure(cb: &mut EVMConstraintBuilder<F>) -> Self { | ||
| let opcode = cb.query_cell(); | ||
|
|
||
| cb.require_in_set( | ||
| "ErrorOutOfGasDynamicMemoryExpansion opcode must be RETURN or REVERT", | ||
| opcode.expr(), | ||
| vec![OpcodeId::RETURN.expr(), OpcodeId::REVERT.expr()], | ||
| ); | ||
|
|
||
| let memory_address = MemoryExpandedAddressGadget::construct_self(cb); | ||
| cb.stack_pop(memory_address.offset_word()); | ||
| cb.stack_pop(memory_address.length_word()); | ||
| let memory_expansion = MemoryExpansionGadget::construct(cb, [memory_address.address()]); | ||
|
|
||
| // constant gas of RETURN and REVERT is zero. | ||
| let insufficient_gas = LtGadget::construct( | ||
| cb, | ||
| cb.curr.state.gas_left.expr(), | ||
| memory_expansion.gas_cost(), | ||
| ); | ||
| cb.require_equal( | ||
| "Memory address is overflow or gas left is less than required", | ||
| or::expr([memory_address.overflow(), insufficient_gas.expr()]), | ||
| 1.expr(), | ||
| ); | ||
|
|
||
| let common_error_gadget = | ||
| CommonErrorGadget::construct(cb, opcode.expr(), cb.rw_counter_offset()); | ||
|
|
||
| Self { | ||
| opcode, | ||
| memory_address, | ||
| memory_expansion, | ||
| insufficient_gas, | ||
| common_error_gadget, | ||
| } | ||
| } | ||
|
|
||
| fn assign_exec_step( | ||
| &self, | ||
| region: &mut CachedRegion<'_, '_, F>, | ||
| offset: usize, | ||
| block: &Block<F>, | ||
| _: &Transaction, | ||
| call: &Call, | ||
| step: &ExecStep, | ||
| ) -> Result<(), Error> { | ||
| let opcode = step.opcode().unwrap(); | ||
| self.opcode | ||
| .assign(region, offset, Value::known(F::from(opcode.as_u64())))?; | ||
|
|
||
| let [memory_offset, length] = [0, 1].map(|idx| block.get_rws(step, idx).stack_value()); | ||
|
|
||
| let expanded_address = self | ||
| .memory_address | ||
| .assign(region, offset, memory_offset, length)?; | ||
|
|
||
| let (_, memory_expansion_cost) = self.memory_expansion.assign( | ||
| region, | ||
| offset, | ||
| step.memory_word_size(), | ||
| [expanded_address], | ||
| )?; | ||
|
|
||
| // constant gas of RETURN and REVERT is zero | ||
| self.insufficient_gas.assign( | ||
| region, | ||
| offset, | ||
| F::from(step.gas_left), | ||
| F::from(memory_expansion_cost), | ||
| )?; | ||
|
|
||
| self.common_error_gadget | ||
| .assign(region, offset, block, call, step, 4)?; | ||
| Ok(()) | ||
| } | ||
| } | ||
|
|
||
| #[cfg(test)] | ||
| mod tests { | ||
| use crate::test_util::CircuitTestBuilder; | ||
| use eth_types::{bytecode, word, Bytecode, ToWord, U256}; | ||
| use mock::{ | ||
| eth, test_ctx::helpers::account_0_code_account_1_no_code, TestContext, MOCK_ACCOUNTS, | ||
| }; | ||
|
|
||
| #[test] | ||
| fn test_oog_dynamic_memory_simple() { | ||
| for code in testing_bytecodes(0x40_u64.into(), 0x14.into()).iter() { | ||
| test_root(code); | ||
| test_internal(code); | ||
| } | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_oog_dynamic_memory_max_expanded_address() { | ||
| // 0xffffffff1 + 0xffffffff0 = 0x1fffffffe1 | ||
| // > MAX_EXPANDED_MEMORY_ADDRESS (0x1fffffffe0) | ||
| for code in testing_bytecodes(0xffffffff1_u64.into(), 0xffffffff0_u64.into()).iter() { | ||
| test_root(code); | ||
| test_internal(code); | ||
| } | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_oog_dynamic_memory_max_u64_address() { | ||
| for code in testing_bytecodes(u64::MAX.into(), u64::MAX.into()).iter() { | ||
| test_root(code); | ||
| test_internal(code); | ||
| } | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_oog_dynamic_memory_max_word_address() { | ||
| for code in testing_bytecodes(U256::MAX, U256::MAX).iter() { | ||
| test_root(code); | ||
| test_internal(code); | ||
| } | ||
| } | ||
|
|
||
| fn test_root(code: &Bytecode) { | ||
| let ctx = TestContext::<2, 1>::new( | ||
| None, | ||
| account_0_code_account_1_no_code(code.clone()), | ||
| |mut txs, accs| { | ||
| txs[0] | ||
| .from(accs[1].address) | ||
| .to(accs[0].address) | ||
| .gas(word!("0x5FFF")); | ||
| }, | ||
| |block, _tx| block, | ||
| ) | ||
| .unwrap(); | ||
|
|
||
| CircuitTestBuilder::new_from_test_ctx(ctx).run(); | ||
| } | ||
|
|
||
| fn test_internal(code: &Bytecode) { | ||
| let code_a = bytecode! { | ||
| PUSH1(0x00) // retLength | ||
| PUSH1(0x00) // retOffset | ||
| PUSH32(0x00) // argsLength | ||
| PUSH32(0x00) // argsOffset | ||
| PUSH1(0x00) // value | ||
| PUSH32(MOCK_ACCOUNTS[1].to_word()) // addr | ||
| PUSH32(0xFFFF) // gas | ||
| CALL | ||
| STOP | ||
| }; | ||
|
|
||
| let ctx = TestContext::<3, 1>::new( | ||
| None, | ||
| |accs| { | ||
| accs[0].address(MOCK_ACCOUNTS[0]).code(code_a); | ||
| accs[1].address(MOCK_ACCOUNTS[1]).code(code.clone()); | ||
| accs[2].address(MOCK_ACCOUNTS[2]).balance(eth(1)); | ||
| }, | ||
| |mut txs, accs| { | ||
| txs[0] | ||
| .from(accs[2].address) | ||
| .to(accs[0].address) | ||
| .gas(word!("0xFFFFF")); | ||
| }, | ||
| |block, _tx| block, | ||
| ) | ||
| .unwrap(); | ||
|
|
||
| CircuitTestBuilder::new_from_test_ctx(ctx).run(); | ||
| } | ||
|
|
||
| fn testing_bytecodes(offset: U256, size: U256) -> Vec<Bytecode> { | ||
| vec![ | ||
| bytecode! { | ||
| PUSH32(size) | ||
| PUSH32(offset) | ||
| RETURN | ||
| }, | ||
| bytecode! { | ||
| PUSH32(size) | ||
| PUSH32(offset) | ||
| REVERT | ||
| }, | ||
| ] | ||
| } | ||
| } |