56c4f2bfd4
The bulk of this PR is authored by @lightclient , in the original EOF-work. More recently, the code has been picked up and reworked for the new EOF specification, by @MariusVanDerWijden , in https://github.com/ethereum/go-ethereum/pull/29518, and also @shemnon has contributed with fixes. This PR is an attempt to start eating the elephant one small bite at a time, by selecting only the eof-validation as a standalone piece which can be merged without interfering too much in the core stuff. In this PR: - [x] Validation of eof containers, lifted from #29518, along with test-vectors from consensus-tests and fuzzing, to ensure that the move did not lose any functionality. - [x] Definition of eof opcodes, which is a prerequisite for validation - [x] Addition of `undefined` to a jumptable entry item. I'm not super-happy with this, but for the moment it seems the least invasive way to do it. A better way might be to go back and allowing nil-items or nil execute-functions to denote "undefined". - [x] benchmarks of eof validation speed --------- Co-authored-by: lightclient <lightclient@protonmail.com> Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de> Co-authored-by: Danno Ferrin <danno.ferrin@shemnon.com>
139 lines
3.6 KiB
Go
139 lines
3.6 KiB
Go
// Copyright 2017 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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func memoryKeccak256(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(0), stack.Back(1))
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}
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func memoryCallDataCopy(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(0), stack.Back(2))
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}
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func memoryReturnDataCopy(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(0), stack.Back(2))
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}
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func memoryCodeCopy(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(0), stack.Back(2))
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}
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func memoryExtCodeCopy(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(1), stack.Back(3))
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}
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func memoryMLoad(stack *Stack) (uint64, bool) {
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return calcMemSize64WithUint(stack.Back(0), 32)
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}
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func memoryMStore8(stack *Stack) (uint64, bool) {
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return calcMemSize64WithUint(stack.Back(0), 1)
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}
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func memoryMStore(stack *Stack) (uint64, bool) {
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return calcMemSize64WithUint(stack.Back(0), 32)
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}
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func memoryMcopy(stack *Stack) (uint64, bool) {
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mStart := stack.Back(0) // stack[0]: dest
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if stack.Back(1).Gt(mStart) {
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mStart = stack.Back(1) // stack[1]: source
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}
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return calcMemSize64(mStart, stack.Back(2)) // stack[2]: length
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}
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func memoryCreate(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(1), stack.Back(2))
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}
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func memoryCreate2(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(1), stack.Back(2))
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}
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func memoryCall(stack *Stack) (uint64, bool) {
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x, overflow := calcMemSize64(stack.Back(5), stack.Back(6))
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if overflow {
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return 0, true
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}
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y, overflow := calcMemSize64(stack.Back(3), stack.Back(4))
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if overflow {
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return 0, true
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}
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if x > y {
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return x, false
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}
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return y, false
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}
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func memoryDelegateCall(stack *Stack) (uint64, bool) {
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x, overflow := calcMemSize64(stack.Back(4), stack.Back(5))
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if overflow {
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return 0, true
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}
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y, overflow := calcMemSize64(stack.Back(2), stack.Back(3))
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if overflow {
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return 0, true
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}
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if x > y {
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return x, false
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}
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return y, false
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}
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func memoryStaticCall(stack *Stack) (uint64, bool) {
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x, overflow := calcMemSize64(stack.Back(4), stack.Back(5))
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if overflow {
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return 0, true
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}
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y, overflow := calcMemSize64(stack.Back(2), stack.Back(3))
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if overflow {
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return 0, true
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}
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if x > y {
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return x, false
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}
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return y, false
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}
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func memoryReturn(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(0), stack.Back(1))
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}
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func memoryRevert(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(0), stack.Back(1))
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}
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func memoryLog(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(0), stack.Back(1))
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}
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func memoryExtCall(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(1), stack.Back(2))
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}
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func memoryDataCopy(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(0), stack.Back(2))
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}
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func memoryEOFCreate(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(2), stack.Back(3))
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}
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func memoryReturnContract(stack *Stack) (uint64, bool) {
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return calcMemSize64(stack.Back(0), stack.Back(1))
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}
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