cd57d5cd38
* core/vm: implement EIP 2315, subroutines for the EVM * core/vm: eip 2315 - lintfix + check jump dest validity + check ret stack size constraints logger: markdown-friendly traces, validate jumpdest, more testcase, correct opcodes * core/vm: update subroutines acc to eip: disallow walk-into * core/vm/eips: gas cost changes for subroutines * core/vm: update opcodes for EIP-2315 * core/vm: define RETURNSUB as a 'jumping' operation + review concerns Co-authored-by: Martin Holst Swende <martin@swende.se>
72 lines
2.7 KiB
Go
72 lines
2.7 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package vm
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import (
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"errors"
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"fmt"
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)
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// List evm execution errors
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var (
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// ErrInvalidSubroutineEntry means that a BEGINSUB was reached via iteration,
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// as opposed to from a JUMPSUB instruction
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ErrInvalidSubroutineEntry = errors.New("invalid subroutine entry")
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ErrOutOfGas = errors.New("out of gas")
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ErrCodeStoreOutOfGas = errors.New("contract creation code storage out of gas")
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ErrDepth = errors.New("max call depth exceeded")
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ErrInsufficientBalance = errors.New("insufficient balance for transfer")
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ErrContractAddressCollision = errors.New("contract address collision")
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ErrExecutionReverted = errors.New("execution reverted")
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ErrMaxCodeSizeExceeded = errors.New("max code size exceeded")
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ErrInvalidJump = errors.New("invalid jump destination")
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ErrWriteProtection = errors.New("write protection")
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ErrReturnDataOutOfBounds = errors.New("return data out of bounds")
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ErrGasUintOverflow = errors.New("gas uint64 overflow")
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ErrInvalidRetsub = errors.New("invalid retsub")
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ErrReturnStackExceeded = errors.New("return stack limit reached")
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)
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// ErrStackUnderflow wraps an evm error when the items on the stack less
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// than the minimal requirement.
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type ErrStackUnderflow struct {
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stackLen int
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required int
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}
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func (e *ErrStackUnderflow) Error() string {
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return fmt.Sprintf("stack underflow (%d <=> %d)", e.stackLen, e.required)
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}
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// ErrStackOverflow wraps an evm error when the items on the stack exceeds
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// the maximum allowance.
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type ErrStackOverflow struct {
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stackLen int
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limit int
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}
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func (e *ErrStackOverflow) Error() string {
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return fmt.Sprintf("stack limit reached %d (%d)", e.stackLen, e.limit)
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}
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// ErrInvalidOpCode wraps an evm error when an invalid opcode is encountered.
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type ErrInvalidOpCode struct {
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opcode OpCode
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}
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func (e *ErrInvalidOpCode) Error() string { return fmt.Sprintf("invalid opcode: %s", e.opcode) }
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