traceBlockParallel replays transactions from the parent state to build per-tx prestate for tracers. In the previous flow, Prague's parent-hash system contract processing was not applied before replay, so the prepared state could diverge from canonical block execution semantics.
This commit keeps the parallel tracing path consistent with block processing rules by applying ProcessParentBlockHash before tx replay when Prague is active.
The regression test TestTraceBlockParallelPragueParentHashSystemCall is strengthened to assert the actual EIP-2935 history slot value (ring-buffer key for block-1) equals block.ParentHash(), instead of relying on an indirect EXTCODESIZE side effect. This makes the test deterministic and directly tied to the bug.
Validation: go test ./eth/tracers -run TestTraceBlockParallelPragueParentHashSystemCall
- Fix "invalid transaction v, r, s values" error when calling debug_traceCall
on BlockSigners contract (0x89)
- Fix "nonce too low" error by respecting Message.SkipNonceChecks flag
- ApplySignTransaction now accepts *Message and uses msg.From directly
- Add fallback to signature recovery for real transactions
- Skip nonce validation when SkipNonceChecks=true (for traceCall)
- Add comprehensive unit tests for both scenarios
Root cause: BlockSigners uses special fast-path that calls
ApplySignTransaction directly, which previously attempted signature
recovery on unsigned transactions from debug_traceCall.
Fixes#1870
Implement https://github.com/ethereum/go-ethereum/issues/32078
Parse and lookup the delegation account if EIP7702 is enabled.
---------
Signed-off-by: jsvisa <delweng@gmail.com>
Co-authored-by: Delweng <delweng@gmail.com>
* Detect non-EVM special transactions and construct a synthetic top level callFrame in OnTxStart.
* GetResult returns the virtual frame for non-EVM txs to preserve debug API compatibility.
* Add bounds checks in OnTxEnd and OnLog to avoid panics when callstack is empty.
* Add unit tests to verify the fix
* p2p: using testing.B.Loop
* core/state: using testing.B.Loop
* eth: using testing.B.Loop
* log: using testing.B.Loop
* core: using testing.B.Loop
* core/vm: using testing.B.Loop
* core/types: using testing.B.Loop
* crypto: using testing.B.Loop
`flatCallTracer` will now specify the type of a create in the action
via the `creationMethod` field.
---------
Signed-off-by: jsvisa <delweng@gmail.com>
Co-authored-by: Delweng <delweng@gmail.com>
Co-authored-by: Sina Mahmoodi <itz.s1na@gmail.com>
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.
Co-authored-by: Sina M <1591639+s1na@users.noreply.github.com>
Introduces the first built-in live tracer. The supply tracer tracks ETH supply changes across blocks
and writes the output to disk. This will need to be enabled through CLI using the `--vmtrace supply` flag.
Co-authored-by: Chris Ziogas <ziogaschr@gmail.com>
Co-authored-by: Sina Mahmoodi <itz.s1na@gmail.com>
This PR improves the output of the markdown logger a bit.
- Remove `RStack` field,
- Move `Stack` last, since it may have very large vertical expansion
- Make the pre- and post-exec metadata structured into a bullet-list
Co-authored-by: Martin HS <martin@swende.se>
When using the prestateTracer, in some cases users are only concerned
with balances or nonce information, and are not interested in the lengthy
contract code or storage data.
Therefore, this PR introduces two new configuration options in the
`prestateTracerConfig` structure:
- `disableCode`
- `disableStorage`
These options allow users to control whether the tracer returns contract
code and storage data during execution tracing. By setting these
options, users can more flexibly customize their needs and focus on
obtaining information that is more critical and relevant to their
specific use cases.
These options work with the default mode as well as `diffMode: true`.
---------
Signed-off-by: jsvisa <delweng@gmail.com>
Co-authored-by: Delweng <delweng@gmail.com>
Co-authored-by: Sina M <1591639+s1na@users.noreply.github.com>
While looking at some mem profiles from `evm` runs, I noticed that
`goja` compilation of the bigint library was present. The bigint library
compilation happens in a package `init`, whenever the package
`eth/tracers/js` is loaded. This PR changes it to load lazily when
needed.
It becomes slightly faster with this change, and slightly less alloc:y.
Non-scientific benchmark with 100 executions:
```
time for i in {1..100}; do ./evm --code 6040 run; done;
```
current `master`:
```
real 0m6.634s
user 0m5.213s
sys 0m2.277s
```
Without compiling bigint
```
real 0m5.802s
user 0m4.191s
sys 0m1.965s
```
Co-authored-by: Martin HS <martin@swende.se>
Make tracers more robust by handling `nil` receipt as input.
Also pass in a receipt with gas used in the state test runner.
Closes https://github.com/ethereum/go-ethereum/issues/30117.
---------
Co-authored-by: Martin HS <martin@swende.se>
Co-authored-by: Sina Mahmoodi <itz.s1na@gmail.com>
Add coinbase address to javascript tracer context.
This PR adds the `coinbase` address to `jsTracer.ctx`, allowing access
to the coinbase address (fee receipient) in custom JavaScript tracers.
Example usage:
```javascript
result: function(ctx) {
return toAddress(ctx.coinbase);
}
```
This change enables custom tracers to access coinbase address,
previously unavailable, enhancing their capabilities to match built-in
tracers.
Co-authored-by: Dylan Vassallo <dylan.vassallo@hotmail.com>
