core/vm,params: revert ECIP1086 implementation

This ECIP allowed an incorrect specification for EIP2200 which is no longer needed, since the incorrect spec was actually 'correct'. Signed-off-by: meows <b5c6@protonmail.com>
NoteGio · Feb 21, 2020 · db2e8c5 · db2e8c5
1 parent 1013657
commit db2e8c5
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Showing 13 changed files with 2 additions and 166 deletions.
diff --git a/core/vm/eips.go b/core/vm/eips.go
@@ -90,15 +90,6 @@ func opChainID(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memo
 	return nil, nil
 }
 
-// enable2200Sloppy applies EIP-2200 (Rebalance net-metered SSTORE)
-// WITHOUT IMPLEMENTING THE GAS REPRICING FOR SLOAD OPCODE.
-func enable2200Sloppy(jt *JumpTable) {
-	// This value is wrong on purpose; it makes the "sloppiness" explicit.
-	jt[SLOAD].constantGas = vars.SloadGasEIP150 // 200
-
-	jt[SSTORE].dynamicGas = gasSStoreEIP2200
-}
-
 // enable2200 applies EIP-2200 (Rebalance net-metered SSTORE)
 func enable2200(jt *JumpTable) {
 	jt[SSTORE].dynamicGas = gasSStoreEIP2200

diff --git a/core/vm/gas_table_test.go b/core/vm/gas_table_test.go
@@ -91,6 +91,7 @@ func TestEIP2200(t *testing.T) {
 			CanTransfer: func(StateDB, common.Address, *big.Int) bool { return true },
 			Transfer:    func(StateDB, common.Address, common.Address, *big.Int) {},
 		}
+
 		vmenv := NewEVM(vmctx, statedb, params.AllEthashProtocolChanges, Config{ExtraEips: []int{2200}})
 
 		_, gas, err := vmenv.Call(AccountRef(common.Address{}), address, nil, tt.gaspool, new(big.Int))

diff --git a/core/vm/jump_table.go b/core/vm/jump_table.go
@@ -190,16 +190,7 @@ func instructionSetForConfig(config ctypes.ChainConfigurator, bn *big.Int) JumpT
 		enableSelfBalance(&instructionSet)
 	}
 
-	// EIP2200 was originally implemented incorrectly (not meeting specifications) by ethereum/go-ethereum, multi-geth, and Parity
-	// clients.
-	// ECIP1086 is a specification to allow this "bad" implementation, which is useful for ETC testnets Kotti and Mordor.
-	//
-	is2200enabled := config.IsEnabled(config.GetEIP2200Transition, bn) && !config.IsEnabled(config.GetEIP2200DisableTransition, bn)
-	if is2200enabled &&
-		config.IsEnabled(config.GetECIP1086Transition, bn) &&
-		!config.IsEnabled(config.GetEIP1884Transition, bn) {
-		enable2200Sloppy(&instructionSet)
-	} else if is2200enabled {
+	if config.IsEnabled(config.GetEIP2200Transition, bn) && !config.IsEnabled(config.GetEIP2200DisableTransition, bn) {
 		enable2200(&instructionSet) // Net metered SSTORE - https://eips.ethereum.org/EIPS/eip-2200
 	}
 	return instructionSet

diff --git a/core/vm/jump_table_test.go b/core/vm/jump_table_test.go
diff --git a/params/config_kotti.go b/params/config_kotti.go
@@ -71,8 +71,6 @@ var (
 		EIP2028FBlock: big.NewInt(2058191),
 		EIP2200FBlock: big.NewInt(2058191), // RePetersburg (== re-1283)
 
-		ECIP1086FBlock: big.NewInt(2058191),
-
 		// ECIP-1078, aka Phoenix Fix
 		EIP2200DisableFBlock: big.NewInt(2_208_203),
 		EIP1283FBlock:        big.NewInt(2_208_203),

diff --git a/params/config_mordor.go b/params/config_mordor.go
@@ -65,8 +65,6 @@ var (
 		EIP2028FBlock: big.NewInt(778507),
 		EIP2200FBlock: big.NewInt(778507), // RePetersburg (== re-1283)
 
-		ECIP1086FBlock: big.NewInt(778507),
-
 		// ECIP-1078, aka Phoenix Fix
 		EIP2200DisableFBlock: big.NewInt(976_231),
 		EIP1283FBlock:        big.NewInt(976_231),

diff --git a/params/types/ctypes/configurator_iface.go b/params/types/ctypes/configurator_iface.go
@@ -120,9 +120,6 @@ type ProtocolSpecifier interface {
 	SetECIP1080Transition(n *uint64) error
 	GetEIP1706Transition() *uint64
 	SetEIP1706Transition(n *uint64) error
-
-	GetECIP1086Transition() *uint64
-	SetECIP1086Transition(n *uint64) error
 }
 
 type Forker interface {

diff --git a/params/types/genesisT/genesis.go b/params/types/genesisT/genesis.go
@@ -536,14 +536,6 @@ func (g Genesis) SetEIP1706Transition(n *uint64) error {
 	return g.Config.SetEIP1706Transition(n)
 }
 
-func (g Genesis) GetECIP1086Transition() *uint64 {
-	return g.Config.GetECIP1086Transition()
-}
-
-func (g Genesis) SetECIP1086Transition(n *uint64) error {
-	return g.Config.SetECIP1086Transition(n)
-}
-
 func (g *Genesis) IsEnabled(fn func() *uint64, n *big.Int) bool {
 	return g.Config.IsEnabled(fn, n)
 }

diff --git a/params/types/goethereum/goethereum_configurator.go b/params/types/goethereum/goethereum_configurator.go
@@ -382,17 +382,6 @@ func (c *ChainConfig) SetEIP1706Transition(n *uint64) error {
 	return nil
 }
 
-func (c *ChainConfig) GetECIP1086Transition() *uint64 {
-	return nil
-}
-
-func (c *ChainConfig) SetECIP1086Transition(n *uint64) error {
-	if n == nil {
-		return nil
-	}
-	return ctypes.ErrUnsupportedConfigFatal
-}
-
 func (c *ChainConfig) IsEnabled(fn func() *uint64, n *big.Int) bool {
 	f := fn()
 	if f == nil || n == nil {

diff --git a/params/types/multigeth/chain_config.go b/params/types/multigeth/chain_config.go
@@ -170,8 +170,6 @@ type MultiGethChainConfig struct {
 	ECIP1017EraRounds  *big.Int `json:"ecip1017EraRounds,omitempty"` // ECIP1017 era rounds
 	ECIP1080FBlock     *big.Int `json:"ecip1080FBlock,omitempty"`
 
-	ECIP1086FBlock *big.Int `json:"ecip1086FBlock,omitempty"`
-
 	DisposalBlock    *big.Int `json:"disposalBlock,omitempty"`    // Bomb disposal HF block
 	SocialBlock      *big.Int `json:"socialBlock,omitempty"`      // Ethereum Social Reward block
 	EthersocialBlock *big.Int `json:"ethersocialBlock,omitempty"` // Ethersocial Reward block

diff --git a/params/types/multigeth/chain_config_configurator.go b/params/types/multigeth/chain_config_configurator.go
@@ -372,15 +372,6 @@ func (c *MultiGethChainConfig) SetEIP1706Transition(n *uint64) error {
 	return nil
 }
 
-func (c *MultiGethChainConfig) GetECIP1086Transition() *uint64 {
-	return bigNewU64(c.ECIP1086FBlock)
-}
-
-func (c *MultiGethChainConfig) SetECIP1086Transition(n *uint64) error {
-	c.ECIP1086FBlock = setBig(c.ECIP1086FBlock, n)
-	return nil
-}
-
 func (c *MultiGethChainConfig) IsEnabled(fn func() *uint64, n *big.Int) bool {
 	f := fn()
 	if f == nil || n == nil {

diff --git a/params/types/multigethv0/multigethv0_chain_config_configurator.go b/params/types/multigethv0/multigethv0_chain_config_configurator.go
@@ -385,17 +385,6 @@ func (c *ChainConfig) SetEIP1706Transition(n *uint64) error {
 	return ctypes.ErrUnsupportedConfigFatal
 }
 
-func (c *ChainConfig) GetECIP1086Transition() *uint64 {
-	return nil
-}
-
-func (c *ChainConfig) SetECIP1086Transition(n *uint64) error {
-	if n == nil {
-		return nil
-	}
-	return ctypes.ErrUnsupportedConfigFatal
-}
-
 func (c *ChainConfig) IsEnabled(fn func() *uint64, n *big.Int) bool {
 	f := fn()
 	if f == nil || n == nil {

diff --git a/params/types/parity/parity_configurator.go b/params/types/parity/parity_configurator.go
@@ -477,17 +477,6 @@ func (c *ParityChainSpec) SetEIP1706Transition(n *uint64) error {
 	return nil
 }
 
-func (c *ParityChainSpec) GetECIP1086Transition() *uint64 {
-	return nil
-}
-
-func (c *ParityChainSpec) SetECIP1086Transition(n *uint64) error {
-	if n == nil {
-		return nil
-	}
-	return ctypes.ErrUnsupportedConfigFatal
-}
-
 func (spec *ParityChainSpec) IsEnabled(fn func() *uint64, n *big.Int) bool {
 	f := fn()
 	if f == nil || n == nil {