This pull request refactors the EVM constructor by removing the
TxContext parameter.
The EVM object is frequently overused. Ideally, only a single EVM
instance should be created and reused throughout the entire state
transition of a block, with the transaction context switched as needed
by calling evm.SetTxContext.
Unfortunately, in some parts of the code, the EVM object is repeatedly
created, resulting in unnecessary complexity. This pull request is the
first step towards gradually improving and simplifying this setup.
---------
Co-authored-by: Martin Holst Swende <martin@swende.se>
In many cases, there is a need to create somewhat nontrivial bytecode. A
recent example is the verkle statetests, where we want a `CREATE2`- op
to create a contract, which can then be invoked, and when invoked does a
selfdestruct-to-self.
It is overkill to go full solidity, but it is also a bit tricky do
assemble this by concatenating bytes. This PR takes an approach that
has been used in in goevmlab for several years.
Using this utility, the case can be expressed as:
```golang
// Some runtime code
runtime := program.New().Ops(vm.ADDRESS, vm.SELFDESTRUCT).Bytecode()
// A constructor returning the runtime code
initcode := program.New().ReturnData(runtime).Bytecode()
// A factory invoking the constructor
outer := program.New().Create2AndCall(initcode, nil).Bytecode()
```
We have a lot of places in the codebase where we concatenate bytes, cast
from `vm.OpCode` . By taking tihs approach instead, thos places can be made a
bit more maintainable/robust.
I think the core code should generally be agnostic about the witness and
the statedb layer should determine what elements need to be included in
the witness. Because code is accessed via `GetCode`, and
`GetCodeLength`, the statedb will always know when it needs to add that
code into the witness.
The edge case is block hashes, so we continue to add them manually in
the implementation of `BLOCKHASH`.
It probably makes sense to refactor statedb so we have a wrapped
implementation that accumulates the witness, but this is a simpler
change that makes #30078 less aggressive.
Looking at the cpu profile of a burntpix benchmark, I noticed that a lot
of time was spent in gas-used, in the interpreter loop. It's an actual
call (not inlined), which explicitly wants to be ignored by tracing
("tracing.GasChangeIgnored"), so it can be safely and simply inlined.
The other change is in `pushX`. These also do a call to
`common.RightPadBytes`. I replaced that by a doing a corresponding `Lsh`
on the `u256` if needed. Note: it's needed only to make the stack output
look right, for fuzzers. It technically doesn't matter what we put
there: if code ends on a pushdata immediate, nothing will consume the
stack element. We could just as well just ignore it, if we didn't care
about fuzzers (which I do).
Seems quite a lot faster on burntpix, according to my runs.
This PR:
```
EVM gas used: 5642735088
execution time: 34.84609475s
allocations: 915683
allocated bytes: 175334088
```
```
EVM gas used: 5642735088
execution time: 36.671958278s
allocations: 915701
allocated bytes: 175340528
```
Master
```
EVM gas used: 5642735088
execution time: 49.349209526s
allocations: 915684
allocated bytes: 175333368
```
```
EVM gas used: 5642735088
execution time: 46.581006598s
allocations: 915681
allocated bytes: 175330728
```
---------
Co-authored-by: Sina M <1591639+s1na@users.noreply.github.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
rebased https://github.com/ethereum/go-ethereum/pull/29766 . The
downstream branch appears to have been deleted and I don't have perms to
push to that fork.
`TerminalTotalDifficultyPassed` is removed. `TerminalTotalDifficulty`
must now be non-nil, and it is expected that networks are already
merged: we can only import PoW/Clique chains, not produce blocks on
them.
---------
Co-authored-by: stevemilk <wangpeculiar@gmail.com>
This PR moves the logging/tracing-facilities out of `*state.StateDB`,
in to a wrapping struct which implements `vm.StateDB` instead.
In most places, it is a pretty straight-forward change:
- First, hoisting the invocations from state objects up to the statedb.
- Then making the mutation-methods simply return the previous value, so
that the external logging layer could log everything.
Some internal code uses the direct object-accessors to mutate the state,
particularly in testing and in setting up state overrides, which means
that these changes are unobservable for the hooked layer. Thus, configuring
the overrides are not necessarily part of the API we want to publish.
The trickiest part about the layering is that when the selfdestructs are
finally deleted during `Finalise`, there's the possibility that someone
sent some ether to it, which is burnt at that point, and thus needs to
be logged. The hooked layer reaches into the inner layer to figure out
these events.
In package `vm`, the conversion from `state.StateDB + hooks` into a
hooked `vm.StateDB` is performed where needed.
---------
Co-authored-by: Gary Rong <garyrong0905@gmail.com>
Way back we've added `common.math.BigMin` and `common.math.BigMax`.
These were kind of cute helpers, but unfortunate ones, because package
all over out codebase added dependencies to this package just to avoid
having to write out 3 lines of code.
Because of this, we've also started having package name clashes with the
stdlib `math`, which got solves even more badly by moving some helpers
over ***from*** the stdlib into our custom lib (e.g. MaxUint64). The
latter ones were nuked out in a previous PR and this PR nukes out BigMin
and BigMax, inlining them at all call sites.
As we're transitioning to uint256, if need be, we can add a min and max
to that.
Breaking changes:
- The ChainConfig was exposed to tracers via VMContext passed in
`OnTxStart`. This is unnecessary specially looking through the lens of
live tracers as chain config remains the same throughout the lifetime of
the program. It was there so that native API-invoked tracers could
access it. So instead we moved it to the constructor of API tracers.
Non-breaking:
- Change the default config of the tracers to be `{}` instead of nil.
This way an extra nil check can be avoided.
Refactoring:
- Rename `supply` struct to `supplyTracer`.
- Un-export some hook definitions.
Changelog: https://golangci-lint.run/product/changelog/#1610
Removes `exportloopref` (no longer needed), replaces it with
`copyloopvar` which is basically the opposite.
Also adds:
- `durationcheck`
- `gocheckcompilerdirectives`
- `reassign`
- `mirror`
- `tenv`
---------
Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
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>
Extends the opcontext interface to include accessor for code being executed in current context. While it is possible to get the code via `statedb.GetCode`, that approach doesn't work for initcode.
This PR integrates witness-enabled block production, witness-creating
payload execution and stateless cross-validation into the `engine` API.
The purpose of the PR is to enable the following use-cases (for API
details, please see next section):
- Cross validating locally created blocks:
- Call `forkchoiceUpdatedWithWitness` instead of `forkchoiceUpdated` to
trigger witness creation too.
- Call `getPayload` as before to retrieve the new block and also the
above created witness.
- Call `executeStatelessPayload` against another client to
cross-validate the block.
- Cross validating locally processed blocks:
- Call `newPayloadWithWitness` instead of `newPayload` to trigger
witness creation too.
- Call `executeStatelessPayload` against another client to
cross-validate the block.
- Block production for stateless clients (local or MEV builders):
- Call `forkchoiceUpdatedWithWitness` instead of `forkchoiceUpdated` to
trigger witness creation too.
- Call `getPayload` as before to retrieve the new block and also the
above created witness.
- Propagate witnesses across the consensus libp2p network for stateless
Ethereum.
- Stateless validator validation:
- Call `executeStatelessPayload` with the propagated witness to
statelessly validate the block.
*Note, the various `WithWitness` methods could also *just be* an
additional boolean flag on the base methods, but this PR wanted to keep
the methods separate until a final consensus is reached on how to
integrate in production.*
---
The following `engine` API types are introduced:
```go
// StatelessPayloadStatusV1 is the result of a stateless payload execution.
type StatelessPayloadStatusV1 struct {
Status string `json:"status"`
StateRoot common.Hash `json:"stateRoot"`
ReceiptsRoot common.Hash `json:"receiptsRoot"`
ValidationError *string `json:"validationError"`
}
```
- Add `forkchoiceUpdatedWithWitnessV1,2,3` with same params and returns
as `forkchoiceUpdatedV1,2,3`, but triggering a stateless witness
building if block production is requested.
- Extend `getPayloadV2,3` to return `executionPayloadEnvelope` with an
additional `witness` field of type `bytes` iff created via
`forkchoiceUpdatedWithWitnessV2,3`.
- Add `newPayloadWithWitnessV1,2,3,4` with same params and returns as
`newPayloadV1,2,3,4`, but triggering a stateless witness creation during
payload execution to allow cross validating it.
- Extend `payloadStatusV1` with a `witness` field of type `bytes` if
returned by `newPayloadWithWitnessV1,2,3,4`.
- Add `executeStatelessPayloadV1,2,3,4` with same base params as
`newPayloadV1,2,3,4` and one more additional param (`witness`) of type
`bytes`. The method returns `statelessPayloadStatusV1`, which mirrors
`payloadStatusV1` but replaces `latestValidHash` with `stateRoot` and
`receiptRoot`.
Remove redundant address presence check in `makeGasSStoreFunc`.
This PR simplifies the `makeGasSStoreFunc` function by removing the
redundant check for address presence in the access list. The updated
code now only checks for slot presence, streamlining the logic and
eliminating unnecessary panic conditions.
This change removes the unnecessary address presence check, simplifying
the code and improving maintainability without affecting functionality.
The previous panic condition was intended as a canary during the testing
phases (i.e. _YOLOv2_) and is no longer needed.
This is a successor PR to #25743. This PR is based on a new iteration of
the spec: https://github.com/ethereum/execution-apis/pull/484.
`eth_multicall` takes in a list of blocks, each optionally overriding
fields like number, timestamp, etc. of a base block. Each block can
include calls. At each block users can override the state. There are
extra features, such as:
- Include ether transfers as part of the logs
- Overriding precompile codes with evm bytecode
- Redirecting accounts to another address
## Breaking changes
This PR includes the following breaking changes:
- Block override fields of eth_call and debug_traceCall have had the
following fields renamed
- `coinbase` -> `feeRecipient`
- `random` -> `prevRandao`
- `baseFee` -> `baseFeePerGas`
---------
Co-authored-by: Gary Rong <garyrong0905@gmail.com>
Co-authored-by: Martin Holst Swende <martin@swende.se>
This pull request introduces a state.Reader interface for state
accessing.
The interface could be implemented in various ways. It can be pure trie
only reader, or the combination of trie and state snapshot. What's more,
this interface allows us to have more flexibility in the future, e.g.
the
archive reader (for accessing archive state).
Additionally, this pull request removes the following metrics
- `chain/snapshot/account/reads`
- `chain/snapshot/storage/reads`
This PR implements changes related to
[EIP-6800](https://eips.ethereum.org/EIPS/eip-6800) and
[EIP-4762](https://eips.ethereum.org/EIPS/eip-4762) spec updates.
A TL;DR of the changes is that `Version`, `Balance`, `Nonce` and
`CodeSize` are encoded in a single leaf named `BasicData`. For more
details, see the [_Header Values_ table in
EIP-6800](https://eips.ethereum.org/EIPS/eip-6800#header-values).
The motivation for this was simplifying access event patterns, reducing
code complexity, and, as a side effect, saving gas since fewer leaf
nodes must be accessed.
---------
Co-authored-by: Guillaume Ballet <3272758+gballet@users.noreply.github.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
To allow all error paths in `vm.EVM.create()` to consume the necessary
gas, there is currently a pattern of gating code on `if err == nil`
instead of returning as soon as the error occurs. The same behaviour can
be achieved by abstracting the gated code into a method that returns
immediately on error, improving readability and thus making it easier to
understand and maintain.
Consistently use `uint64` for indices in `Memory` and drop lots of type
conversions from `uint64` to `int64`.
---------
Co-authored-by: lmittmann <lmittmann@users.noreply.github.com>
The struct-based tracing added in #29189 seems to have caused an issue
with the benchmark `BenchmarkTracerStepVsCallFrame`. On master we see
the following panic:
```console
BenchmarkTracerStepVsCallFrame
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x40 pc=0x1019782f0]
goroutine 37 [running]:
github.com/ethereum/go-ethereum/eth/tracers/js.(*jsTracer).OnOpcode(0x140004c4000, 0x0, 0x10?, 0x989680, 0x1, {0x101ea2298, 0x1400000e258}, {0x1400000e258?, 0x14000155928?, 0x10173020c?}, ...)
/Users/matt/dev/go-ethereum/eth/tracers/js/goja.go:328 +0x140
github.com/ethereum/go-ethereum/core/vm.(*EVMInterpreter).Run(0x14000307da0, 0x140003cc0d0, {0x0, 0x0, 0x0}, 0x0)
...
FAIL github.com/ethereum/go-ethereum/core/vm/runtime 0.420s
FAIL
```
The issue seems to be that `OnOpcode` expects that `OnTxStart` has
already been called to initialize the `env` value in the tracer. The JS
tracer uses it in `OnOpcode` for the `GetRefund()` method.
This patch resolves the issue by reusing the `Call` method already
defined in `runtime_test.go` which correctly calls `OnTxStart`.
* all: add stateless verifications
* all: simplify witness and integrate it into live geth
---------
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
This PR updates the bls contracts from our internal implementation which is an unmaintained fork of the kilic library to the gnark-crypto library that is actively maintained by consensys.
It also updates the gas-costs according to the EIP
Here we add a Go API for running tracing plugins within the main block import process.
As an advanced user of geth, you can now create a Go file in eth/tracers/live/, and within
that file register your custom tracer implementation. Then recompile geth and select your tracer
on the command line. Hooks defined in the tracer will run whenever a block is processed.
The hook system is defined in package core/tracing. It uses a struct with callbacks, instead of
requiring an interface, for several reasons:
- We plan to keep this API stable long-term. The core/tracing hook API does not depend on
on deep geth internals.
- There are a lot of hooks, and tracers will only need some of them. Using a struct allows you
to implement only the hooks you want to actually use.
All existing tracers in eth/tracers/native have been rewritten to use the new hook system.
This change breaks compatibility with the vm.EVMLogger interface that we used to have.
If you are a user of vm.EVMLogger, please migrate to core/tracing, and sorry for breaking
your stuff. But we just couldn't have both the old and new tracing APIs coexist in the EVM.
---------
Co-authored-by: Matthieu Vachon <matthieu.o.vachon@gmail.com>
Co-authored-by: Delweng <delweng@gmail.com>
Co-authored-by: Martin HS <martin@swende.se>
wangjingcun
rjl493456442
Martin HS
lightclient
jwasinger
Péter Szilágyi
Sina M
Karol Chojnowski
Guillaume Ballet
Dylan Vassallo
Ignacio Hagopian
lmittmann
Arran Schlosberg
gitglorythegreat
Hteev Oli
Aaron Chen
Marius van der Wijden
Mario Vega
Devon Bear
Abirdcfly
cui