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core/vm: simplify error handling in interpreter loop (#23952)

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* core/vm: break loop on any error

* core/vm: move ErrExecutionReverted to opRevert()

* core/vm: use "stop token" to stop the loop

* core/vm: unconditionally pc++ in the loop

* core/vm: set return data in instruction impls
This commit is contained in:
Paweł Bylica
2021-11-29 14:46:24 +01:00
committed by GitHub
parent 86fe359a56
commit 1fa91729f2
4 changed files with 29 additions and 41 deletions
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19
core/vm/jump_table.go
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@ -41,11 +41,7 @@ type operation struct {
// memorySize returns the memory size required for the operation
memorySize memorySizeFunc
halts bool // indicates whether the operation should halt further execution
jumps bool // indicates whether the program counter should not increment
writes bool // determines whether this a state modifying operation
reverts bool // determines whether the operation reverts state (implicitly halts)
returns bool // determines whether the operations sets the return data content
writes bool // determines whether this a state modifying operation
}
var (
@ -128,7 +124,6 @@ func newConstantinopleInstructionSet() JumpTable {
maxStack: maxStack(4, 1),
memorySize: memoryCreate2,
writes: true,
returns: true,
}
return instructionSet
}
@ -144,7 +139,6 @@ func newByzantiumInstructionSet() JumpTable {
minStack: minStack(6, 1),
maxStack: maxStack(6, 1),
memorySize: memoryStaticCall,
returns: true,
}
instructionSet[RETURNDATASIZE] = &operation{
execute: opReturnDataSize,
@ -166,8 +160,6 @@ func newByzantiumInstructionSet() JumpTable {
minStack: minStack(2, 0),
maxStack: maxStack(2, 0),
memorySize: memoryRevert,
reverts: true,
returns: true,
}
return instructionSet
}
@ -204,7 +196,6 @@ func newHomesteadInstructionSet() JumpTable {
minStack: minStack(6, 1),
maxStack: maxStack(6, 1),
memorySize: memoryDelegateCall,
returns: true,
}
return instructionSet
}
@ -218,7 +209,6 @@ func newFrontierInstructionSet() JumpTable {
constantGas: 0,
minStack: minStack(0, 0),
maxStack: maxStack(0, 0),
halts: true,
},
ADD: {
execute: opAdd,
@ -528,14 +518,12 @@ func newFrontierInstructionSet() JumpTable {
constantGas: GasMidStep,
minStack: minStack(1, 0),
maxStack: maxStack(1, 0),
jumps: true,
},
JUMPI: {
execute: opJumpi,
constantGas: GasSlowStep,
minStack: minStack(2, 0),
maxStack: maxStack(2, 0),
jumps: true,
},
PC: {
execute: opPc,
@ -993,7 +981,6 @@ func newFrontierInstructionSet() JumpTable {
maxStack: maxStack(3, 1),
memorySize: memoryCreate,
writes: true,
returns: true,
},
CALL: {
execute: opCall,
@ -1002,7 +989,6 @@ func newFrontierInstructionSet() JumpTable {
minStack: minStack(7, 1),
maxStack: maxStack(7, 1),
memorySize: memoryCall,
returns: true,
},
CALLCODE: {
execute: opCallCode,
@ -1011,7 +997,6 @@ func newFrontierInstructionSet() JumpTable {
minStack: minStack(7, 1),
maxStack: maxStack(7, 1),
memorySize: memoryCall,
returns: true,
},
RETURN: {
execute: opReturn,
@ -1019,14 +1004,12 @@ func newFrontierInstructionSet() JumpTable {
minStack: minStack(2, 0),
maxStack: maxStack(2, 0),
memorySize: memoryReturn,
halts: true,
},
SELFDESTRUCT: {
execute: opSuicide,
dynamicGas: gasSelfdestruct,
minStack: minStack(1, 0),
maxStack: maxStack(1, 0),
halts: true,
writes: true,
},
}