* done

* removed sleep

* f

* errors.Is(err, io.EOF) instead of err == io.EOF

Co-authored-by: yperbasis <andrey.ashikhmin@gmail.com>

* change: expose callCtx as ScopeContext

* change: update tracer API

* change: logger API
update: jst tracer

* add: port jst tracer 2

* add: port jst tracer 3

* add: access list tracer

* chore: lint

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* eip 1559_tx_constraints

* eip 1559_tx_constraints

* return error on uint256 overflow

* up uint256 version

* merge master

* fix master

Co-authored-by: ledgerwatch <akhounov@gmail.com>

* rename

* rename "make grpc"

* rename "abi bindings templates"

* rename "abi bindings templates"

* remove uneeded convertion type

* remove redundant type in composite literal

* omit explicit type where implicit

* remove unused redundant parenthesis

* remove redundant import alias duktape
# Conflicts:
#	core/state/snapshot/conversion.go
#	eth/tracers/tracer.go
#	metrics/cpu_syscall.go
#	trie/trie_test.go

Squashed from the following commits:

core/state: lazily init snapshot storage map
core/state: fix flawed meter on storage reads
core/state: make statedb/stateobjects reuse a hasher
core/blockchain, core/state: implement new trie prefetcher
core: make trie prefetcher deliver tries to statedb
core/state: refactor trie_prefetcher, export storage tries
blockchain: re-enable the next-block-prefetcher
state: remove panics in trie prefetcher
core/state/trie_prefetcher: address some review concerns

sq

# Conflicts:
#	core/blockchain.go
#	core/state/database.go
#	core/state/state_object.go
#	core/state/statedb.go

* crypto/bls12381: fixed ineffectual assignment

* crypto/signify: fix ineffectual assignment

* common,crypto: move fuzzers out of core

* fuzzers: move vm fuzzer out from core

* fuzzing: rework cover package logic

* fuzzers: lint

This fixes some issues in crypto/signify and makes release signing work.

The archive signing step in ci.go used getenvBase64, which decodes the key data.
This is incorrect here because crypto/signify already base64-decodes the key.
# Conflicts:
#	build/ci.go

Go won't vendor C files if there are no Go files present in the directory.
Workaround is to add dummy Go files.

Fixes: #20232

* internal/build: implement signify's signing func
* Add signify to the ci utility
* fix output file format
* Add unit test for signify
* holiman's + travis' feedback
* internal/build: verify signify's output
* crypto: move signify to common dir
* use go-minisign to verify binaries
* more holiman feedback
* crypto, ci: support minisign output
* only accept one-line trusted comments
* configurable untrusted comments
* code cleanup in tests
* revert to use ed25519 from the stdlib
* bug: fix for empty untrusted comments
* write timestamp as comment if trusted comment isn't present
* rename line checker to commentHasManyLines
* crypto: added signify fuzzer (#6)
* crypto: added signify fuzzer
* stuff
* crypto: updated signify fuzzer to fuzz comments
* crypto: repro signify crashes
* rebased fuzzer on build-signify branch
* hide fuzzer behind gofuzz build flag
* extract key data inside a single function
* don't treat \r as a newline
* travis: fix signing command line
* do not use an external binary in tests
* crypto: move signify to crypto/signify
* travis: fix formatting issue
* ci: fix linter build after package move

Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
# Conflicts:
#	build/ci.go
#	go.mod
#	go.sum

Changes:

    Simplify nested complexity
    If an if blocks ends with a return statement then remove the else nesting.

Most of the changes has also been reported in golint https://goreportcard.com/report/github.com/ethereum/go-ethereum#golint
# Conflicts:
#	cmd/utils/flags.go
#	console/bridge.go
#	crypto/bls12381/g2.go
#	les/benchmark.go
#	les/lespay/server/balance.go
#	les/lespay/server/balance_tracker.go
#	les/lespay/server/prioritypool.go
#	les/odr_requests.go
#	les/serverpool.go
#	les/serverpool_test.go
#	p2p/nodestate/nodestate_test.go
#	trie/committer.go

* added bls fuzzer

* crypto/bls12381: revert bls-changes, fixup fuzzer tests

* fuzzers: split bls fuzzing into 8 different units

* fuzzers/bls: remove (now stale) corpus

* crypto/bls12381: added blsfuzz corpus

* fuzzers/bls12381: fix the bls corpus

* fuzzers: fix oss-fuzz script

* tests/fuzzers: fixups on bls corpus

* test/fuzzers: remove leftover corpus

Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
# Conflicts:
#	crypto/bls12381/fp_test.go

* crypto/bn256: fix bn256Mul fuzzer to not hang on large input

* Update crypto/bn256/bn256_fuzz.go

Co-authored-by: ligi <ligi@ligi.de>

Co-authored-by: ligi <ligi@ligi.de>

The z == 0 check is hit whenever we Add two points with the same x1/x2
coordinate. crypto/elliptic uses the same check in their affineFromJacobian
function. This change does not affect block processing or tx signature verification
in any way, because it does not use the Add or Double methods.

* crypto/cloudflare: fix nil deref in random G1/G2 reading

* crypto/bn256: improve fuzzer

* crypto/bn256: fix some flaws in fuzzer

* fix parallel context creation

* fix a typo

* core, crypto: various allocation savings regarding tx handling

* core: reduce allocs for gas price comparison

This change reduces the allocations needed for comparing different transactions to each other.
A call to `tx.GasPrice()` copies the gas price as it has to be safe against modifications and
also needs to be threadsafe. For comparing and ordering different transactions we don't need
these guarantees

* core: added tx.GasPriceIntCmp for comparison without allocation

adds a method to remove unneeded allocation in comparison to tx.gasPrice

* core/types: pool legacykeccak256 objects in rlpHash

rlpHash is by far the most used function in core that allocates a legacyKeccak256 object on each call.
Since it is so widely used it makes sense to add pooling here so we relieve the GC.
On my machine these changes result in > 100 MILLION less allocations and > 30 GB less allocated memory.

* reverted some changes

* reverted some changes

* trie: use crypto.KeccakState instead of replicating code

Co-authored-by: Martin Holst Swende <martin@swende.se>
# Conflicts:
#	core/tx_list.go
#	core/tx_pool.go
#	core/types/block.go
#	core/types/transaction.go
#	trie/committer.go
#	trie/hasher.go

* crypto/secp256k1: enable use of __int128

This speeds up scalar & field calculations a lot.

* crypto/secp256k1: enable endomorphism optimization

speicifc -> specific
assigened -> assigned
frobenious -> frobenius

* core/vm: crypto/bls12381: minor code comments

* crypto/bls12381: fix comment

* crypto: add bls12-381 elliptic curve wrapper

* params: add bls12-381 precompile gas parameters

* core/vm: add bls12-381 precompiles

* core/vm: add bls12-381 precompile tests

* go.mod, go.sum: use latest bls12381 lib

* core/vm: move point encode/decode functions to base library

* crypto/bls12381: introduce bls12-381 library init function

* crypto/bls12381: import bls12381 elliptic curve implementation

* go.mod, go.sum: remove bls12-381 library

* remove unsued frobenious coeffs

supress warning for inp that used in asm

* add mappings tests for zero inputs

fix swu g2 minus z inverse constant

* crypto/bls12381: fix typo

* crypto/bls12381: better comments for bls12381 constants

* crypto/bls12381: swu, use single conditional for e2

* crypto/bls12381: utils, delete empty line

* crypto/bls12381: utils, use FromHex for string to big

* crypto/bls12381: g1, g2, strict length check for FromBytes

* crypto/bls12381: field_element, comparision changes

* crypto/bls12381: change swu, isogeny constants with hex values

* core/vm: fix point multiplication comments

* core/vm: fix multiexp gas calculation and lookup for g1 and g2

* core/vm: simpler imput length check for multiexp and pairing precompiles

* core/vm: rm empty multiexp result declarations

* crypto/bls12381: remove modulus type definition

* crypto/bls12381: use proper init function

* crypto/bls12381: get rid of new lines at fatal desciprtions

* crypto/bls12-381: fix no-adx assembly multiplication

* crypto/bls12-381: remove old config function

* crypto/bls12381: update multiplication backend

this commit changes mul backend to 6limb eip1962 backend

mul assign operations are dropped

* core/vm/contracts_tests: externalize test vectors for precompiles

* core/vm/contracts_test: externalize failure-cases for precompiles

* core/vm: linting

* go.mod: tiny up sum file

* core/vm: fix goimports linter issues

* crypto/bls12381: build tags for plain ASM or ADX implementation

Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
# Conflicts:
#	core/vm/contracts.go
#	core/vm/contracts_test.go
#	go.sum

* prevent slice make and copy in Pushes

* do not pad if the same length

* after CR

* linters

* linters

* linters

* uint256 in rlp

* uint256 rather than big.Int in Transation

* linters

* more linters

* still linters

* Reduce garbage in writeUint256

* Experiment with GC in writeByteArray