diff options
Diffstat (limited to 'core/vm/interpreter.go')
| -rw-r--r-- | core/vm/interpreter.go | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/core/vm/interpreter.go b/core/vm/interpreter.go index b0d796a44..94b922c79 100644 --- a/core/vm/interpreter.go +++ b/core/vm/interpreter.go @@ -137,12 +137,17 @@ func (in *Interpreter) Run(snapshot int, contract *Contract, input []byte) (ret // to be uint256. Practically much less so feasible. pc = uint64(0) // program counter cost uint64 + // copies used by tracer + stackCopy = newstack() // stackCopy needed for Tracer since stack is mutated by 63/64 gas rule + pcCopy uint64 // needed for the deferred Tracer + gasCopy uint64 // for Tracer to log gas remaining before execution + logged bool // deferred Tracer should ignore already logged steps ) contract.Input = input defer func() { - if err != nil && in.cfg.Debug { - in.cfg.Tracer.CaptureState(in.evm, pc, op, contract.Gas, cost, mem, stack, contract, in.evm.depth, err) + if err != nil && !logged && in.cfg.Debug { + in.cfg.Tracer.CaptureState(in.evm, pcCopy, op, gasCopy, cost, mem, stackCopy, contract, in.evm.depth, err) } }() @@ -154,6 +159,16 @@ func (in *Interpreter) Run(snapshot int, contract *Contract, input []byte) (ret // Get the memory location of pc op = contract.GetOp(pc) + if in.cfg.Debug { + logged = false + pcCopy = uint64(pc) + gasCopy = uint64(contract.Gas) + stackCopy = newstack() + for _, val := range stack.data { + stackCopy.push(val) + } + } + // get the operation from the jump table matching the opcode operation := in.cfg.JumpTable[op] if err := in.enforceRestrictions(op, operation, stack); err != nil { @@ -199,7 +214,8 @@ func (in *Interpreter) Run(snapshot int, contract *Contract, input []byte) (ret } if in.cfg.Debug { - in.cfg.Tracer.CaptureState(in.evm, pc, op, contract.Gas, cost, mem, stack, contract, in.evm.depth, err) + in.cfg.Tracer.CaptureState(in.evm, pc, op, gasCopy, cost, mem, stackCopy, contract, in.evm.depth, err) + logged = true } // execute the operation |