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Fixed most of the tests

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This commit is contained in:
obscuren
2014-10-16 18:27:05 +02:00
parent bb5038699e
commit 93fcabd251
9 changed files with 116 additions and 71 deletions
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ethvm/environment.go
+1
View File
@@ -17,6 +17,7 @@ type Environment interface {
Time() int64
Difficulty() *big.Int
BlockHash() []byte
GasLimit() *big.Int
}
type Object interface {
ethvm/execution.go
+24 -14
View File
@@ -10,21 +10,27 @@ import (
type Execution struct {
vm VirtualMachine
closure *Closure
address, input []byte
gas, price, value *big.Int
Gas, price, value *big.Int
object *ethstate.StateObject
}
func NewExecution(vm VirtualMachine, address, input []byte, gas, gasPrice, value *big.Int) *Execution {
return &Execution{vm: vm, address: address, input: input, gas: gas, price: gasPrice, value: value}
return &Execution{vm: vm, address: address, input: input, Gas: gas, price: gasPrice, value: value}
}
func (self *Execution) Addr() []byte {
return self.address
}
func (self *Execution) Exec(codeAddr []byte, caller ClosureRef) (ret []byte, err error) {
func (self *Execution) Exec(codeAddr []byte, caller ClosureRef) ([]byte, error) {
// Retrieve the executing code
code := self.vm.Env().State().GetCode(codeAddr)
return self.exec(code, codeAddr, caller)
}
func (self *Execution) exec(code, caddr []byte, caller ClosureRef) (ret []byte, err error) {
env := self.vm.Env()
snapshot := env.State().Copy()
@@ -44,7 +50,7 @@ func (self *Execution) Exec(codeAddr []byte, caller ClosureRef) (ret []byte, err
object := caller.Object()
if object.Balance.Cmp(self.value) < 0 {
caller.ReturnGas(self.gas, self.price)
caller.ReturnGas(self.Gas, self.price)
err = fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, object.Balance)
} else {
@@ -55,23 +61,23 @@ func (self *Execution) Exec(codeAddr []byte, caller ClosureRef) (ret []byte, err
stateObject.AddAmount(self.value)
// Pre-compiled contracts (address.go) 1, 2 & 3.
naddr := ethutil.BigD(codeAddr).Uint64()
naddr := ethutil.BigD(caddr).Uint64()
if p := Precompiled[naddr]; p != nil {
if self.gas.Cmp(p.Gas) >= 0 {
if self.Gas.Cmp(p.Gas) >= 0 {
ret = p.Call(self.input)
self.vm.Printf("NATIVE_FUNC(%x) => %x", naddr, ret)
}
} else {
// Create a new callable closure
c := NewClosure(msg, caller, stateObject, code, self.Gas, self.price)
c.exe = self
if self.vm.Depth() == MaxCallDepth {
return nil, fmt.Errorf("Max call depth exceeded (%d)", MaxCallDepth)
c.UseGas(c.Gas)
return c.Return(nil), fmt.Errorf("Max call depth exceeded (%d)", MaxCallDepth)
}
// Retrieve the executing code
code := env.State().GetCode(codeAddr)
// Create a new callable closure
c := NewClosure(msg, caller, stateObject, code, self.gas, self.price)
c.exe = self
// Executer the closure and get the return value (if any)
ret, _, err = c.Call(self.vm, self.input)
@@ -81,3 +87,7 @@ func (self *Execution) Exec(codeAddr []byte, caller ClosureRef) (ret []byte, err
return
}
func (self *Execution) Create(caller ClosureRef) (ret []byte, err error) {
return self.exec(self.input, nil, caller)
}
ethvm/vm_debug.go
+36 -24
View File
@@ -54,6 +54,25 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
panic(fmt.Sprintf("%04v (%v) stack err size = %d, required = %d", pc, op, stack.Len(), m))
}
}
jump = func(pos *big.Int) {
p := int(pos.Int64())
self.Printf(" ~> %v", pos)
// Return to start
if p == 0 {
pc = big.NewInt(0)
} else {
nop := OpCode(closure.GetOp(p - 1))
if nop != JUMPDEST {
panic(fmt.Sprintf("JUMP missed JUMPDEST (%v) %v", nop, p))
}
pc = pos
}
self.Endl()
}
)
if self.Recoverable {
@@ -440,14 +459,18 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
case BYTE:
require(2)
val, th := stack.Popn()
if th.Cmp(big.NewInt(32)) < 0 && th.Cmp(big.NewInt(int64(len(val.Bytes())))) < 0 {
byt := big.NewInt(int64(ethutil.LeftPadBytes(val.Bytes(), 32)[th.Int64()]))
stack.Push(byt)
self.Printf(" => 0x%x", byt.Bytes())
if th.Cmp(big.NewInt(32)) < 0 {
byt := big.NewInt(int64(ethutil.LeftPadBytes(val.Bytes(), 32)[th.Int64()]))
base.Set(byt)
} else {
stack.Push(ethutil.BigFalse)
base.Set(ethutil.BigFalse)
}
self.Printf(" => 0x%x", base.Bytes())
stack.Push(base)
case ADDMOD:
require(3)
@@ -562,7 +585,7 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
mem.Set(mOff, l, code)
case CODESIZE, EXTCODESIZE:
var code []byte
if op == EXTCODECOPY {
if op == EXTCODESIZE {
addr := stack.Pop().Bytes()
code = state.GetCode(addr)
@@ -638,8 +661,7 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
self.Printf(" => 0x%x", difficulty.Bytes())
case GASLIMIT:
// TODO
stack.Push(big.NewInt(0))
stack.Push(self.env.GasLimit())
// 0x50 range
case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
@@ -713,32 +735,21 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
case JUMP:
require(1)
pc = stack.Pop()
if OpCode(closure.Get(pc).Uint()) != JUMPDEST {
panic(fmt.Sprintf("JUMP missed JUMPDEST %v", pc))
}
// Reduce pc by one because of the increment that's at the end of this for loop
self.Printf(" ~> %v", pc).Endl()
jump(stack.Pop())
continue
case JUMPI:
require(2)
cond, pos := stack.Popn()
if cond.Cmp(ethutil.BigTrue) >= 0 {
pc = pos
if OpCode(closure.Get(pc).Uint()) != JUMPDEST {
panic(fmt.Sprintf("JUMP missed JUMPDEST %v", pc))
}
if cond.Cmp(ethutil.BigTrue) >= 0 {
jump(pos)
continue
} else {
self.Printf(" (f)")
}
case JUMPDEST:
self.Printf(" ~> %v (t)", pc).Endl()
case PC:
stack.Push(pc)
case MSIZE:
@@ -771,7 +782,7 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
closure.UseGas(closure.Gas)
msg := NewExecution(self, addr, input, gas, closure.Price, value)
ret, err := msg.Exec(addr, closure)
ret, err := msg.Create(closure)
if err != nil {
stack.Push(ethutil.BigFalse)
@@ -857,6 +868,7 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
vmlogger.Debugf("(pc) %-3v Invalid opcode %x\n", pc, op)
//panic(fmt.Sprintf("Invalid opcode %x", op))
closure.ReturnGas(big.NewInt(1), nil)
return closure.Return(nil), fmt.Errorf("Invalid opcode %x", op)
}