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core/vm: implement RETURNDATA metropolis opcodes

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This commit is contained in:
Jeffrey Wilcke
2017-08-16 13:07:33 +03:00
committed by Péter Szilágyi
parent 76069eef38
commit 9bd6068fef
6 changed files with 253 additions and 171 deletions
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50
core/vm/jump_table.go
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@ -53,6 +53,8 @@ type operation struct {
valid bool
// reverts determined whether the operation reverts state
reverts bool
// clearsReturndata determines whether the opertions clears the return data
clearsReturndata bool
}
var (
@ -73,6 +75,19 @@ func NewMetropolisInstructionSet() [256]operation {
memorySize: memoryStaticCall,
valid: true,
}
instructionSet[RETURNDATASIZE] = operation{
execute: opReturnDataSize,
gasCost: constGasFunc(GasQuickStep),
validateStack: makeStackFunc(0, 1),
valid: true,
}
instructionSet[RETURNDATACOPY] = operation{
execute: opReturnDataCopy,
gasCost: gasReturnDataCopy,
validateStack: makeStackFunc(3, 0),
memorySize: memoryReturnDataCopy,
valid: true,
}
return instructionSet
}
@ -861,26 +876,29 @@ func NewFrontierInstructionSet() [256]operation {
writes: true,
},
CREATE: {
execute: opCreate,
gasCost: gasCreate,
validateStack: makeStackFunc(3, 1),
memorySize: memoryCreate,
valid: true,
writes: true,
execute: opCreate,
gasCost: gasCreate,
validateStack: makeStackFunc(3, 1),
memorySize: memoryCreate,
valid: true,
writes: true,
clearsReturndata: true,
},
CALL: {
execute: opCall,
gasCost: gasCall,
validateStack: makeStackFunc(7, 1),
memorySize: memoryCall,
valid: true,
execute: opCall,
gasCost: gasCall,
validateStack: makeStackFunc(7, 1),
memorySize: memoryCall,
valid: true,
clearsReturndata: true,
},
CALLCODE: {
execute: opCallCode,
gasCost: gasCallCode,
validateStack: makeStackFunc(7, 1),
memorySize: memoryCall,
valid: true,
execute: opCallCode,
gasCost: gasCallCode,
validateStack: makeStackFunc(7, 1),
memorySize: memoryCall,
valid: true,
clearsReturndata: true,
},
RETURN: {
execute: opReturn,