Reorder initialization in eth.New so the effective chain config is resolved and persisted via core.SetupGenesisBlock before creating the consensus engine.
Background:
- On first sync from genesis, LoadChainConfig could return a stored/incomplete config (notably with XDPoS.V2 unset in legacy testnet setups).
- Creating XDPoS before finalizing genesis config could trigger mainnet V2 fallback and log/behavior mismatches around SwitchBlock.
What changed:
- Replace early LoadChainConfig usage with SetupGenesisBlock in eth.New.
- Keep ConfigCompatError semantics consistent with core/blockchain initialization: fail only on non-compat errors.
- Initialize consensus engine after finalized chainConfig is available.
Result:
- Consensus engine now starts with finalized network config on first boot.
- Avoids incorrect V2 fallback parameters (e.g. wrong SwitchBlock) during initial testnet sync.
Tests:
- Added regression tests in eth/backend_test.go to cover legacy missing-V2 repair and SetupGenesisBlock idempotency.
Drop Ethereum.chainConfig and consistently read chain configuration from blockchain.Config() to avoid dual sources of truth.
Changes include API/backend call sites and DebugAPI constructor cleanup. No functional behavior change is intended.
Miner configuration is unified under [Eth.Miner] (GasCeil/GasPrice/Etherbase/ExtraData), replacing legacy top-level [Eth] miner keys.
Operational impact: existing config files using [Eth].GasPrice/[Eth].Etherbase/[Eth].ExtraData must be migrated before upgrade.
Behavior update: gasprice=0 remains valid; only negative gas prices are sanitized at startup.
Default change: XDCGenesisGasLimit is reduced to 42,000,000 and now feeds miner default GasCeil (including default --miner-gaslimit), so nodes relying on defaults should review capacity expectations.
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>
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: Sina M <1591639+s1na@users.noreply.github.com>
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>
The name of a method’s receiver should be a reflection of its identity;
often a one or two letter abbreviation of its type suffices (such as
“c” or “cl” for “Client”). Don’t use generic names such as “me”, “this”
or “self”, identifiers typical of object-oriented languages that place
more emphasis on methods as opposed to functions. The name need not be
as descriptive as that of a method argument, as its role is obvious and
serves no documentary purpose. It can be very short as it will appear
on almost every line of every method of the type; familiarity admits
brevity. Be consistent, too: if you call the receiver “c” in one method,
don’t call it “cl” in another.
