* ethclient/gethclient: improve time-sensitive flaky test

* eth/catalyst: fix (?) flaky test

* core: stop blockchains in tests after use

* core: fix dangling blockchain instances

* core: rm whitespace

* eth/gasprice, eth/tracers, consensus/clique: stop dangling blockchains in tests

* all: address review concerns

* core: goimports

* eth/catalyst: fix another time-sensitive test

* consensus/clique: add snapshot test run function

* core: rename stop() to stopWithoutSaving()
Co-authored-by: Felix Lange <fjl@twurst.com>

core/bloombits: remove micro-sleep

This PR introduces a new mechanism in chain tracer for preventing creating too many trace states.

The workflow of chain tracer can be divided into several parts:

- state creator generates trace state in a thread
- state tracer retrieves the trace state and applies the tracing on top in another thread
- state collector gathers all result from state tracer and stream to users

It's basically a producer-consumer model here, while if we imagine that the state producer generates states too fast, then it will lead to accumulate lots of unused states in memory. Even worse, in path-based state scheme it will only keep the latest 128 states in memory, and the newly generated state will invalidate the oldest one by marking it as stale.

The solution for fixing it is to limit the speed of state generation. If there are over 128 states un-consumed in memory, then the creation will be paused until the states are be consumed properly.

Backwards compatibility warning: The result will from now on omit empty fields instead
of including a zero value (e.g. no more `balance: '0x'`).

The prestateTracer will now take an option `diffMode: bool`. In this mode
the tracer will output the pre state and post data for the modified parts of state.
Read-only accesses will be completely omitted. Creations (be it account or slot)
will be signified by omission in the `pre` list and inclusion in `post`. Whereas
deletion (be it account or slot) will be signified by inclusion in `pre` and omission
in `post` list.
Signed-off-by: Delweng <delweng@gmail.com>

all: fix docstrings

* eth, miner: add timeout for building sealing block

* eth, cmd, miner: add newpayloadtimeout flag

* eth, miner, cmd: address comments

* eth, miner: minor fixes
Co-authored-by: Martin Holst Swende <martin@swende.se>

This PR makes it so that the snap server responds to trie heal requests when possible, even if the snapshot does not exist. The idea being that it might prolong the lifetime of a state root, so we don't have to pivot quite as often.

add a testcase to TestLegacyReceiptDecoding

This PR makes it possible to set custom headers, in particular for two scenarios: 

- geth attach
- geth commands which can use --remotedb, e..g geth db inspect

The ability to use custom headers is typically useful for connecting to cloud-apis, e.g. providing an infura- or alchemy key, or for that matter access-keys for environments behind cloudflare.  
Co-authored-by: Felix Lange <fjl@twurst.com>

This fixes a cornercase bug where the flag migration would mess
up the value of StringSlice flags.

* accounts/abi/bind: parse ABI once on bind

* accounts/abi/bind: suppress 'imported and not used' error for abi package

* eth/tracers: add revertReason to callTracer

* update callframe gen json

* add revertal to calltrace test

This PR reworks tx indexer a bit. Compared to the original version, one scenario is no longer handled - upgrading  from legacy geth without indexer support. 

The tx indexer was introduced in 2020 and have been present through hardforks, so it can be assumed that all Geth nodes have tx indexer already. So we can simplify the tx indexer logic a bit:

-    If the tail flag is not present, it means node is just initialized may or may not with an ancient store attached. In this case all blocks are regarded as unindexed
-   If the tail flag is present, it means blocks below tail are unindexed, blocks above tail are indexed

This change also address some weird cornercases that could make the indexer not work after a crash.

This change adds zero-padding (prefix) of odd nibbles in the decodeHash function. 
Co-authored-by: ty <ty@oncoder.com>

* dropped `vm.keccakState` for `crypto.KeccakState`

* cleaned up `OpCode.IsPush()`

* test(state): report mgas/s metric in EVM benchmark

* revert testdata submodule update

* aggregate mgas/s results

* calculate elapsed time better

* tests: benchmarks - handle access list + take refund into account
Co-authored-by: Martin Holst Swende <martin@swende.se>

This PR prevent making tiny writes during state healing, by only performing the batch-write if the accumulated data is large enough to be meaningful.

This fixes a bug where contract code would be overridden to empty code ("0x")
when the Code field of OverrideAccount was left nil. The change also cleans up
the encoding of overrides to only send necessary fields, and improves documentation.

Fixes #25615
Co-authored-by: Felix Lange <fjl@twurst.com>
Co-authored-by: Martin Holst Swende <martin@swende.se>

* make vmError more useful

* fix for review

* Update api.go

* revert calling site
Co-authored-by: rjl493456442 <garyrong0905@gmail.com>

* cmd, core, eth, les, light: track deleted nodes

* trie: add docs

* trie: address comments

* cmd, core, eth, les, light, trie: trie id

* trie: add tests

* trie, core: updates

* trie: fix imports

* trie: add utility print-method for nodeset

* trie: import err

* trie: fix go vet warnings
Co-authored-by: Martin Holst Swende <martin@swende.se>

The call tracer and prestate tracer store data JSON-encoded in memory. In order to support alternative encodings (specifically RLP), it's better to keep data a native format during tracing. This PR does marshalling at the end, using gencodec.

OBS! 
This PR changes the call tracer result slightly:

-  Order of type and value fields are changed (should not matter). 
-  Output fields are completely omitted when they're empty (no more output: "0x"). Previously, this was only _sometimes_ omitted (e.g. when call ended in a non-revert error) and otherwise 0x when the output was actually empty. 

Some tests define an 'expectException' error but the tests runner does not check for conditions where this test value is filled (error expected) but in which no error is returned by the test runner.

An example of this scenario is GeneralStateTests/stTransactionTest/HighGasPrice.json, which expects a 'TR_NoFunds' error, but the test runner does not return any error.
Signed-off-by: meows <b5c6@protonmail.com>

`geth dumpgenesis` currently does not respect the content of the data directory. Instead, it outputs the genesis block created by command-line flags. This PR fixes it to read the genesis from the database, if the database already exists.
Co-authored-by: Martin Holst Swende <martin@swende.se>

* core/vm: correct logic for eip check of NewEVMInterpreter

* refactor

* fix queue.deliver

* les/downloader: fix queue.deliver
Co-authored-by: Martin Holst Swende <martin@swende.se>

core: fix datarace in txpool pendingnoce, fixes #25870

* Fix: typos

Fix: typos

* Undo change

Undo change

* eth/tracers: pad memory slice on oob case

* eth/tracers/js: fix testfailure due to err msg capitalization
Co-authored-by: Martin Holst Swende <martin@swende.se>

The header.Size() method did not take the basefee into account. 

This PR fully removes the --miner.gastarget flag, as previously it was only hidden from the geth --help command, but could still be used.

This PR cleans up the configurations for pruner and snapshotter by passing a config struct.

And also, this PR disables the snapshot background generation if the chain is opened in "read-only" mode. The read-only mode is necessary in some cases. For example, we have a list of commands to open the etheruem node in "read-only" mode, like export-chain. In these cases, the snapshot background generation is non expected and should be banned explicitly.

* remove morden

* Update commons.go

* Update handler.go

* empty commit to make appveyor happy

The abigen exclusion pattern, previously on the form "path:type", now supports wildcards. Examples "*:type" to exclude a named type in all files, or "/path/to/foo.sol:*" all types in foo.sol.

This changes the CI build to store the git commit and date into package
internal/version instead of package main. Doing this essentially merges our
two ways of tracking the go-ethereum version into a single place, achieving
two objectives:

- Bad block reports, which use version.Info(), will now have the git commit
  information even when geth is built in an environment such as
  launchpad.net where git access is unavailable.

- For geth builds created by `go build ./cmd/geth` (i.e. not using `go run
  build/ci.go install`), git information stored by the go tool is now used
  in the p2p node name as well as in `geth version` and `geth
  version-check`.