Commit Graph

192 Commits

Author SHA1 Message Date
Iskander (Alex) Sharipov 778ff94794
all: fix some go-critic linter warnings (#23709)
This doesn't fix all go-critic warnings, just the most serious ones.

Co-authored-by: Felix Lange <fjl@twurst.com>
Co-authored-by: Martin Holst Swende <martin@swende.se>
2021-10-13 17:31:02 +02:00
Martin Holst Swende 64da037e99
cmd/evm: stricter transaction validation (#23694)
* cmd/evm: t9n: validate transaction intrinsic gas

* cmd/evm: t9n: stricter tx validation
2021-10-11 12:30:13 +02:00
Marius van der Wijden b8d7c662cd
core, rpc: disable memory output by default in traces (#23558)
* core: cmd: invert disableMemory

* core: fix missed inversion

* cmd/evm: preserve Flags but change default value

* Apply suggestions from code review

Co-authored-by: Martin Holst Swende <martin@swende.se>

Co-authored-by: Martin Holst Swende <martin@swende.se>
2021-09-13 18:59:52 +02:00
Martin Holst Swende babe9b993e
cmd/evm: transaction validation tool (#23494)
* cmd/evm: transaction validation tool

* cmd/evm: add hash to t9n tool

* cmd/evm: lint nits

* cmd/evm: nitpicks
2021-09-13 13:57:40 +02:00
Martin Holst Swende 4d88974864
cmd/evm: add tests for evm t8n (#23507) 2021-09-02 09:22:43 +02:00
Martin Holst Swende 84c51bc5ec
cmd/evm: add difficulty calculation to t8n tool (#23353)
This PR adds functionality to the evm t8n to calculate ethash difficulty. If the caller does not provide a currentDifficulty, but instead provides the parentTimestamp (well, semi-optional, will default to 0 if not given), and parentDifficulty, we can calculate it for him.

The caller can also provide a parentUncleHash. In most, but not all cases, the parent uncle hash also affects the formula. If no such hash is provided (or, if the empty all-zero hash is provided), it's assumed that there were no uncles.
2021-08-25 15:04:26 +02:00
Martin Holst Swende 8a24b56331
cmd/evm: implement input txs via rlp in t8n tool (#23138)
In many cases, it's desireable to use already-signed transactions as input to the state transition, instead of having the evm sign them internally (for example to use malformed or not-yet-valid transactions). This PR adds support + docs for that feature.
2021-08-07 23:04:34 +02:00
Marius van der Wijden 97aacd9b35
core: fix pre-check for account balance under EIP-1559 (#23244)
When processing a transaction with London fork rules, EIP-1559 mandates
checking that the sender must have sufficient balance to cover gas * gasFeeCap.

In the EIP's pseudocode, this check happens after the value transferred by the
transaction has already been deducted. However, in go-ethereum, the balance
has not yet been updated when the check happens, and therefore needs to be
added explicitly.

Co-authored-by: Martin Holst Swende <martin@swende.se>
2021-07-22 15:39:40 +02:00
Sina Mahmoodi 5441a8fa47
all: remove noop vm config flags (#23111)
* all: rm external interpreter and ewasm config

* core/vm: rm Interpreter interface

* cmd/geth: deprecate interpreter config fields
2021-07-06 22:03:09 +02:00
ucwong 3b05318525
cmd/evm, eth/ethconfig: regenerate struct codecs (#23140) 2021-07-02 11:08:53 +02:00
Marius van der Wijden 686b2884ee
all: removed blockhash from statedb (#23126)
This PR removes the blockhash from the statedb
2021-06-30 15:17:01 +02:00
Péter Szilágyi c503f98f6d
all: rename internal 1559 gas fields, add support for graphql (#23010)
* all: rename internal 1559 gas fields, add support for graphql

* cmd/evm/testdata, core: use public 1559 gas names on API surfaces
2021-06-08 12:05:41 +02:00
Martin Holst Swende 0e9c7d564d
tests: update for London (#22976)
This updates the tests submodule to the London fork tests, and
also updates the test runner to support the new EIP-1559 fields in
test JSON.
2021-06-07 14:37:56 +02:00
Martin Holst Swende 94451c2788
all: implement EIP-1559 (#22837)
This is the initial implementation of EIP-1559 in packages core/types and core.
Mining, RPC, etc. will be added in subsequent commits.

Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
Co-authored-by: lightclient@protonmail.com <lightclient@protonmail.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
2021-05-17 15:13:22 +02:00
lightclient 597ecb39cc
cmd/evm: return json error if unmarshalling from stdin fails (#22871)
* cmd/evm: return json error if unmarshalling from stdin fails

* cmd/evm: make error capitalizations uniform (all lowercase starts)

* cmd/evm: capitalize error sent directly to stderror
2021-05-17 08:52:32 +02:00
Martin Holst Swende addd8824cf
cmd/geth, eth, core: snapshot dump + unify with trie dump (#22795)
* cmd/geth, eth, core: snapshot dump + unify with trie dump

* cmd/evm: dump API fixes

* cmd/geth, core, eth: fix some remaining errors

* cmd/evm: dump - add limit, support address startkey, address review concerns

* cmd, core/state, eth: minor polishes, fix snap dump crash, unify format

Co-authored-by: Péter Szilágyi <peterke@gmail.com>
2021-05-12 11:05:39 +03:00
Péter Szilágyi 1e207342b5
all: make logs a bit easier on the eye to digest (#22665)
* all: add thousandths separators for big numbers on log messages

* p2p/sentry: drop accidental file

* common, log: add fast number formatter

* common, eth/protocols/snap: simplifty fancy num types

* log: handle nil big ints
2021-04-15 20:35:00 +03:00
lightclient bbfb1e4008
all: add support for EIP-2718, EIP-2930 transactions (#21502)
This adds support for EIP-2718 typed transactions as well as EIP-2930
access list transactions (tx type 1). These EIPs are scheduled for the
Berlin fork.

There very few changes to existing APIs in core/types, and several new APIs
to deal with access list transactions. In particular, there are two new
constructor functions for transactions: types.NewTx and types.SignNewTx.
Since the canonical encoding of typed transactions is not RLP-compatible,
Transaction now has new methods for encoding and decoding: MarshalBinary
and UnmarshalBinary.

The existing EIP-155 signer does not support the new transaction types.
All code dealing with transaction signatures should be updated to use the
newer EIP-2930 signer. To make this easier for future updates, we have
added new constructor functions for types.Signer: types.LatestSigner and
types.LatestSignerForChainID. 

This change also adds support for the YoloV3 testnet.

Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Felix Lange <fjl@twurst.com>
Co-authored-by: Ryan Schneider <ryanleeschneider@gmail.com>
2021-02-25 15:26:57 +01:00
ucwong 83e4c49e2b
trie : use trie.NewStackTrie instead of new(trie.Trie) (#22246)
The PR makes use of the stacktrie, which is is more lenient on resource consumption, than the regular trie, in cases where we only need it for DeriveSha
2021-02-02 13:09:23 +01:00
Sina Mahmoodi eb21c652c0
cmd,core,eth,params,tests: define yolov3 + enable EIP-2565 (#22213)
Removes the yolov2 definition, adds yolov3, including EIP-2565. This PR also disables some of the erroneously generated blockchain and statetests, and adds the new genesis hash + alloc for yolov3. 
This PR disables the CLI switches for yolo, since it's not complete until we merge support for 2930.
2021-01-28 21:19:07 +01:00
Alex Prut 810f9e057d
all: remove redundant conversions and import names (#21903) 2020-11-25 21:00:23 +01:00
Marius van der Wijden 2045a2bba3
core, all: split vm.Context into BlockContext and TxContext (#21672)
* all: core: split vm.Config into BlockConfig and TxConfig

* core: core/vm: reset EVM between tx in block instead of creating new

* core/vm: added docs
2020-11-13 13:42:19 +01:00
Martin Holst Swende 6487c002f6
all: implement EIP-2929 (gas cost increases for state access opcodes) + yolo-v2 (#21509)
* core/vm, core/state: implement EIP-2929 + YOLOv2

* core/state, core/vm: fix some review concerns

* core/state, core/vm: address review concerns

* core/vm: address review concerns

* core/vm: better documentation

* core/vm: unify sload cost as fully dynamic

* core/vm: fix typo

* core/vm/runtime: fix compilation flaw

* core/vm/runtime: fix renaming-err leftovers

* core/vm: renaming

* params/config: use correct yolov2 chainid for config

* core, params: use a proper new genesis for yolov2

* core/state/tests: golinter nitpicks
2020-10-23 08:26:57 +02:00
gary rong 87c0ba9213
core, eth, les, trie: add a prefix to contract code (#21080) 2020-08-21 15:10:40 +03:00
Martin Holst Swende 7ebc6c43ff
cmd/evm: statet8n output folder + tx hashes on trace filenames (#21406)
* t8ntool: add output basedir

* t8ntool: add txhash to trace filename

* t8ntool: don't default to '.' basedir, allow absolute paths
2020-08-19 11:31:13 +02:00
Martin Holst Swende 295693759e
core/vm: less allocations for various call variants (#21222)
* core/vm/runtime/tests: add more benchmarks

* core/vm: initial work on improving alloc count for calls to precompiles

name                                  old time/op    new time/op    delta
SimpleLoop/identity-precompile-10M-6     117ms ±75%      43ms ± 1%  -63.09%  (p=0.008 n=5+5)
SimpleLoop/loop-10M-6                   79.6ms ± 4%    70.5ms ± 1%  -11.42%  (p=0.008 n=5+5)

name                                  old alloc/op   new alloc/op   delta
SimpleLoop/identity-precompile-10M-6    24.4MB ± 0%     4.9MB ± 0%  -79.94%  (p=0.008 n=5+5)
SimpleLoop/loop-10M-6                   13.2kB ± 0%    13.2kB ± 0%     ~     (p=0.357 n=5+5)

name                                  old allocs/op  new allocs/op  delta
SimpleLoop/identity-precompile-10M-6      382k ± 0%      153k ± 0%  -59.99%  (p=0.000 n=5+4)
SimpleLoop/loop-10M-6                     40.0 ± 0%      40.0 ± 0%     ~     (all equal)

* core/vm: don't allocate big.int for touch

name                                  old time/op    new time/op    delta
SimpleLoop/identity-precompile-10M-6    43.3ms ± 1%    42.4ms ± 7%     ~     (p=0.151 n=5+5)
SimpleLoop/loop-10M-6                   70.5ms ± 1%    76.7ms ± 1%   +8.67%  (p=0.008 n=5+5)

name                                  old alloc/op   new alloc/op   delta
SimpleLoop/identity-precompile-10M-6    4.90MB ± 0%    2.46MB ± 0%  -49.83%  (p=0.008 n=5+5)
SimpleLoop/loop-10M-6                   13.2kB ± 0%    13.2kB ± 1%     ~     (p=0.571 n=5+5)

name                                  old allocs/op  new allocs/op  delta
SimpleLoop/identity-precompile-10M-6      153k ± 0%       76k ± 0%  -49.98%  (p=0.029 n=4+4)
SimpleLoop/loop-10M-6                     40.0 ± 0%      40.0 ± 0%     ~     (all equal)

* core/vm: reduce allocs in staticcall

name                                  old time/op    new time/op    delta
SimpleLoop/identity-precompile-10M-6    42.4ms ± 7%    37.5ms ± 6%  -11.68%  (p=0.008 n=5+5)
SimpleLoop/loop-10M-6                   76.7ms ± 1%    69.1ms ± 1%   -9.82%  (p=0.008 n=5+5)

name                                  old alloc/op   new alloc/op   delta
SimpleLoop/identity-precompile-10M-6    2.46MB ± 0%    0.02MB ± 0%  -99.35%  (p=0.008 n=5+5)
SimpleLoop/loop-10M-6                   13.2kB ± 1%    13.2kB ± 0%     ~     (p=0.143 n=5+5)

name                                  old allocs/op  new allocs/op  delta
SimpleLoop/identity-precompile-10M-6     76.4k ± 0%      0.1k ± 0%     ~     (p=0.079 n=4+5)
SimpleLoop/loop-10M-6                     40.0 ± 0%      40.0 ± 0%     ~     (all equal)

* trie: better use of hasher keccakState

* core/state/statedb: reduce allocations in getDeletedStateObject

* core/vm: reduce allocations in all call derivates

* core/vm: reduce allocations in call variants

- Make returnstack `uint32`
- Use a `sync.Pool` of `stack`s

* core/vm: fix tests

* core/vm: goimports

* core/vm: tracer fix + staticcall gas fix

* core/vm: add back snapshot to staticcall

* core/vm: review concerns + make returnstack pooled + enable returndata in traces

* core/vm: fix some test tracer method signatures

* core/vm: run gencodec, minor comment polish

Co-authored-by: Péter Szilágyi <peterke@gmail.com>
2020-07-16 15:06:19 +03:00
rene 5b081ab214
cmd/clef: change --rpcport to --http.port and update flags in docs (#21318) 2020-07-14 10:35:32 +02:00
Martin Holst Swende e376d2fb31
cmd/evm: add state transition tool for testing (#20958)
This PR implements the EVM state transition tool, which is intended
to be the replacement for our retesteth client implementation.
Documentation is present in the cmd/evm/README.md file.

Co-authored-by: Felix Lange <fjl@twurst.com>
2020-06-30 10:12:51 +02:00
Péter Szilágyi 65cd28aa0e
tests: cleanup snapshot generator goroutine leak 2020-05-04 12:10:02 +03:00
Paweł Bylica d56dc038d2
cmd/evm: Rework execution stats (#20792)
- Dump stats also for --bench flag.
- From memory stats only show number and size of allocations. This is what `test -bench` shows. I doubt others like number of GC runs are any useful, but can be added if requested.
- Now the mem stats are for single execution in case of --bench.
2020-04-01 12:40:07 +02:00
Péter Szilágyi 6e05ccd845
core/state/snapshot, tests: sync snap gen + snaps in consensus tests 2020-03-03 09:17:13 +02:00
Péter Szilágyi 542df8898e
core: initial version of state snapshots 2020-02-25 12:51:04 +02:00
Guillaume Ballet 60deeb103e cmd/evm: accept --input for disasm command (#20548) 2020-01-27 10:05:21 +01:00
Paweł Bylica 49cf000df7 cmd/evm: Add --bench flag for benchmarking (#20330)
The --bench flag uses the testing.B to execute the EVM bytecode many times and get the average exeuction time out of it.
2019-12-18 09:43:18 +01:00
zaccoding 23c8c74131 cmd: fix command help messages in modules (#20203) 2019-11-26 11:46:39 +01:00
Michael Forney 9e71f55bfa cmd/evm: Allow loading input from file (#20273)
Make it possible to load input from a file. Simlar to `--code` / `--codefile`, have `--input`/`--inputfile`.
2019-11-17 15:45:54 +01:00
Michael Forney 9c81387bef cmd/evm: remove surrounding whitespace in hex input code (#20211)
This way, the output of `evm compile` can be used directly in `evm
--codefile code.txt run`, without stripping the trailing newline first.
2019-10-28 14:55:20 +01:00
Martin Holst Swende 16f0fb70f1
cmd/evm: make evm default to all ethash protocol changes 2019-09-13 22:32:20 +02:00
Martin Holst Swende 2ca89ea479 cmd/evm: evm input minor fixes (#19740)
* cmd/evm: evm input minor fixes, handle prefix, validate length, fixes #18041

* cmd/evm: remove whitespace
2019-06-25 11:03:04 +03:00
Martin Holst Swende 1da5e0ebb0 core/state, cmd/geth: streaming json output for dump command (#15475)
* core/state, cmd/geth: streaming json output dump cmd + optional code+storage

* dump: add option to continue even if preimages are missing

* core, evm: lint nits

* cmd: use local flags for dump, omit empty code/storage

* core/state: fix state dump test
2019-06-24 17:16:44 +03:00
C. Brown be4d74f8d2 cmd, internal/build, docker: advertise commit date in unstable build versions (#19522)
* add-date-to unstable

* fields-insteadof-split

* internal/build: support building with missing git

* docker: add git history back to support commit date in version

* internal/build: use PR commits hashes for PR builds
2019-05-08 16:44:28 +03:00
Corey Lin 768b4c2e6b asm: remove unused parameter for function Lex (#18058) 2019-03-14 10:35:55 +01:00
Péter Szilágyi 054412e335
all: clean up and proerly abstract database access 2019-03-06 13:35:03 +02:00
Paweł Bylica d37f987639 cmd/evm: Add --vm.evm flag to support EVMC (#18457) 2019-01-16 11:43:41 +01:00
Martin Holst Swende 42a914a84f
cmd/evm, core/vm, eth: implement api methods to do stdjson dump to local filesystem 2018-12-10 12:33:50 +02:00
Matthew Di Ferrante 3d21d455dc cmd/evm: commit statedb if dump is requested (#18208)
Add a call `statedb.Commit(true)` if the `Dump` flag is on, as otherwise the `storage` output in the dump is always empty.
2018-11-29 09:29:12 +01:00
Martin Holst Swende 4c0883e20d core/vm: adds refund as part of the json standard trace (#17910)
This adds the global accumulated refund counter to the standard
json output as a numeric json value. Previously this was not very
interesting since it was not used much, but with the new sstore
gas changes the value is a lot more interesting from a consensus
investigation perspective.
2018-10-23 16:28:18 +02:00
cdetrio bfa0f96822 cmd/evm: fix state dump (#17832) 2018-10-04 10:22:41 +02:00
Kevin 3fec73500b cmd/evm: EVM prestate initialization (#17685)
* Bugfix #17216: evm loads prestate file properly now

* code gofmted
2018-09-20 08:24:53 +02:00
Emil 86a03f97d3 all: simplify s[:] to s where s is a slice (#17673) 2018-09-14 22:07:13 +02:00
Péter Szilágyi 83e2761c3a
Revert "cmd/evm: change error msg output to stderr (#17118)"
This reverts commit fb9f7261ec.
2018-08-01 19:09:08 +03:00
Chen Quan fb9f7261ec cmd/evm: change error msg output to stderr (#17118)
* cmd/evm: change error msg output to stderr

* cmd/evm: fix some linter error
2018-07-31 10:48:27 +03:00
gary rong 7beccb29be all: get rid of error when creating memory database (#16716)
* all: get rid of error when create mdb

* core: clean up variables definition

* all: inline mdb definition
2018-05-09 15:24:25 +03:00
kiel barry 4ea493e7eb cmd: various golint fixes (#16700)
* cmd: various golint fixes

* cmd: update to pr change request

* cmd: update to pr change request
2018-05-09 10:38:03 +03:00
Martin Holst Swende 8dfa4f46a9
evm/main: use blocknumber from genesis 2018-05-02 10:17:00 +02:00
Felix Lange c7ab3e5544 common: delete StringToAddress, StringToHash (#16436)
* common: delete StringToAddress, StringToHash

These functions are confusing because they don't parse hex, but use the
bytes of the string. This change removes them, replacing all uses of
StringToAddress(s) by BytesToAddress([]byte(s)).

* eth/filters: remove incorrect use of common.BytesToAddress
2018-04-10 14:12:07 +03:00
dm4 3ebcf92b42 cmd/evm: print vm output when debug flag is on (#16326) 2018-04-06 12:43:36 +02:00
Péter Szilágyi b7e57ca1d0
cmd/evm, core/vm, internal/ethapi: don't disable call gas metering 2018-03-05 14:01:13 +02:00
Felix Lange a5c0bbb4f4
all: update license information (#16089) 2018-02-14 13:49:11 +01:00
Péter Szilágyi 55599ee95d core, trie: intermediate mempool between trie and database (#15857)
This commit reduces database I/O by not writing every state trie to disk.
2018-02-05 17:40:32 +01:00
Péter Szilágyi 5258785c81
cmd, core, eth/tracers: support fancier js tracing (#15516)
* cmd, core, eth/tracers: support fancier js tracing

* eth, internal/web3ext: rework trace API, concurrency, chain tracing

* eth/tracers: add three more JavaScript tracers

* eth/tracers, vendor: swap ottovm to duktape for tracing

* core, eth, internal: finalize call tracer and needed extras

* eth, tests: prestate tracer, call test suite, rewinding

* vendor: fix windows builds for tracer js engine

* vendor: temporary duktape fix

* eth/tracers: fix up 4byte and evmdis tracer

* vendor: pull in latest duktape with my upstream fixes

* eth: fix some review comments

* eth: rename rewind to reexec to make it more obvious

* core/vm: terminate tracing using defers
2017-12-21 13:56:11 +02:00
Martin Holst Swende 0900aae412 cmd/evm: print stateroot in evm utility (#15341) 2017-10-20 13:22:06 +03:00
cdetrio 673007d7ae core/vm: standard vm traces (#15035) 2017-09-22 10:22:56 +02:00
Martin Holst Swende 8cab3ab435 cmd/evm: adds ability to run individual state test file (#14998)
* cmd/evm: adds ability to run individual state test file

* cmd/evm: Fix statetest runner to be more json friendly

* cmd/evm, tests: minor polishes, dump state on fail
2017-09-05 12:24:26 +03:00
Martin Holst Swende 286ec5df40 cmd/evm, core/vm, internal/ethapi: Show error when exiting (#14985)
* cmd/evm, core/vm, internal/ethapi: Add 'err' to tracer interface CaptureEnd

* cmd/evm: fix nullpointer when there is no error
2017-08-23 14:37:18 +03:00
Martin Holst Swende 3040243042 cmd/evm: add --receiver, support code from stdin (#14873) 2017-08-15 11:31:36 +02:00
Egon Elbre 85454e7678 cmd: fix megacheck warnings (#14912)
* cmd: fix megacheck warnings

* cmd: revert time.Until changes, keep readFloat
2017-08-07 14:34:21 +03:00
Felix Lange 9e5f03b6c4 core/state: access trie through Database interface, track errors (#14589)
With this commit, core/state's access to the underlying key/value database is
mediated through an interface. Database errors are tracked in StateDB and
returned by CommitTo or the new Error method.

Motivation for this change: We can remove the light client's duplicated copy of
core/state. The light client now supports node iteration, so tracing and storage
enumeration can work with the light client (not implemented in this commit).
2017-06-27 15:57:06 +02:00
Martin Holst Swende 9a44e1035e cmd/evm, core/vm: add --nomemory, --nostack to evm (#14617) 2017-06-21 14:52:31 +02:00
Martin Holst Swende 80f7c6c299 cmd/evm: add --prestate, --sender, --json flags for fuzzing (#14476) 2017-06-07 17:09:08 +02:00
Jeffrey Wilcke 3ee75bec9f cmd/evm: added mem/cpu profiling 2017-05-23 10:17:55 +02:00
Péter Szilágyi 09777952ee core, consensus: pluggable consensus engines (#3817)
This commit adds pluggable consensus engines to go-ethereum. In short, it
introduces a generic consensus interface, and refactors the entire codebase to
use this interface.
2017-04-05 00:16:29 +02:00
Péter Szilágyi 82e7c1d124 Merge pull request #3728 from obscuren/format-trace
core/evm, core/vm: improved evm trace output
2017-03-02 13:01:01 +02:00
Valentin Wüstholz c52ab932e6 cmd/disasm, cmd/evm: integrate disasm tool into evm tool. (#3729) 2017-03-01 13:34:50 +01:00
Jeffrey Wilcke f30733c806
cmd/evm: removed -sysstat and moved content to -debug flag
Added the ability to directly compile and run ethereum assembly using
the evm utility: `evm run <file>`. This is equivalant to `evm compile
<file> | evm run`.
2017-03-01 11:52:57 +01:00
Jeffrey Wilcke bf4155846c
core/evm, core/vm: improved evm trace output
* Improved the standard evm tracer output and renamed it to WriteTrace
which now takes an io.Writer to write the logs to.
* Added WriteLogs which writes logs to the given writer in a readable
format.
* evm utility now also prints logs generated during the execution.
2017-03-01 11:20:25 +01:00
Jeffrey Wilcke 230cf2ec91 cmd/evm, core/asm: add EVM assembler (#3686)
The evm compile command implements a simple assembly language that compiles to
EVM bytecode.
2017-03-01 01:11:24 +01:00
Felix Lange d0eba23af3 all: disable log message colors outside of geth
Also tweak behaviour so colors are only enabled when stderr is a terminal.
2017-02-27 15:33:12 +01:00
Felix Lange 5c8fe28b72 common: move big integer math to common/math (#3699)
* common: remove CurrencyToString

Move denomination values to params instead.

* common: delete dead code

* common: move big integer operations to common/math

This commit consolidates all big integer operations into common/math and
adds tests and documentation.

There should be no change in semantics for BigPow, BigMin, BigMax, S256,
U256, Exp and their behaviour is now locked in by tests.

The BigD, BytesToBig and Bytes2Big functions don't provide additional
value, all uses are replaced by new(big.Int).SetBytes().

BigToBytes is now called PaddedBigBytes, its minimum output size
parameter is now specified as the number of bytes instead of bits. The
single use of this function is in the EVM's MSTORE instruction.

Big and String2Big are replaced by ParseBig, which is slightly stricter.
It previously accepted leading zeros for hexadecimal inputs but treated
decimal inputs as octal if a leading zero digit was present.

ParseUint64 is used in places where String2Big was used to decode a
uint64.

The new functions MustParseBig and MustParseUint64 are now used in many
places where parsing errors were previously ignored.

* common: delete unused big integer variables

* accounts/abi: replace uses of BytesToBig with use of encoding/binary

* common: remove BytesToBig

* common: remove Bytes2Big

* common: remove BigTrue

* cmd/utils: add BigFlag and use it for error-checked integer flags

While here, remove environment variable processing for DirectoryFlag
because we don't use it.

* core: add missing error checks in genesis block parser

* common: remove String2Big

* cmd/evm: use utils.BigFlag

* common/math: check for 256 bit overflow in ParseBig

This is supposed to prevent silent overflow/truncation of values in the
genesis block JSON. Without this check, a genesis block that set a
balance larger than 256 bits would lead to weird behaviour in the VM.

* cmd/utils: fixup import
2017-02-26 22:21:51 +01:00
Péter Szilágyi d4fd06c3dc
all: blidly swap out glog to our log15, logs need rework 2017-02-23 12:16:44 +02:00
Jeffrey Wilcke 024d41d0c2 core, core/state, core/vm: remove exported account getters (#3618)
Removed exported statedb object accessors, reducing the chance for nasty
bugs to creep in. It's also ugly and unnecessary to have these methods.
2017-02-22 23:29:59 +01:00
Jeffrey Wilcke c12f4df910 params: core, core/vm, miner: 64bit gas instructions
Reworked the EVM gas instructions to use 64bit integers rather than
arbitrary size big ints. All gas operations, be it additions,
multiplications or divisions, are checked and guarded against 64 bit
integer overflows.

In additon, most of the protocol paramaters in the params package have
been converted to uint64 and are now constants rather than variables.

* common/math: added overflow check ops
* core: vmenv, env renamed to evm
* eth, internal/ethapi, les: unmetered eth_call and cancel methods
* core/vm: implemented big.Int pool for evm instructions
* core/vm: unexported intPool methods & verification methods
* core/vm: added memoryGasCost overflow check and test
2017-02-13 21:44:25 +01:00
Jeffrey Wilcke 57f4e90257 Revert "params: core, core/vm, miner: 64bit gas instructions (#3514)"
This reverts commit 8b57c49490.
2017-02-13 15:15:12 +01:00
Jeffrey Wilcke 8b57c49490 params: core, core/vm, miner: 64bit gas instructions (#3514)
Reworked the EVM gas instructions to use 64bit integers rather than
arbitrary size big ints. All gas operations, be it additions,
multiplications or divisions, are checked and guarded against 64 bit
integer overflows.

In additon, most of the protocol paramaters in the params package have
been converted to uint64 and are now constants rather than variables.

* common/math: added overflow check ops
* core: vmenv, env renamed to evm
* eth, internal/ethapi, les: unmetered eth_call and cancel methods
* core/vm: implemented big.Int pool for evm instructions
* core/vm: unexported intPool methods & verification methods
* core/vm: added memoryGasCost overflow check and test
2017-02-02 15:25:42 +01:00
Martin Holst Swende 935d891e9d cmd/evm: added debug flag (back) (#3554)
* evm: added debug flag (back)

* cmd/evm: gofmt
2017-01-22 22:14:09 +01:00
Jeffrey Wilcke bbc4ea4ae8 core/vm: improved EVM run loop & instruction calling (#3378)
The run loop, which previously contained custom opcode executes have been
removed and has been simplified to a few checks.

Each operation consists of 4 elements: execution function, gas cost function,
stack validation function and memory size function. The execution function
implements the operation's runtime behaviour, the gas cost function implements
the operation gas costs function and greatly depends on the memory and stack,
the stack validation function validates the stack and makes sure that enough
items can be popped off and pushed on and the memory size function calculates
the memory required for the operation and returns it.

This commit also allows the EVM to go unmetered. This is helpful for offline
operations such as contract calls.
2017-01-05 11:52:10 +01:00
Jeffrey Wilcke 3fc7c97827 core, core/vm: implemented a generic environment (#3348)
Environment is now a struct (not an interface). This
reduces a lot of tech-debt throughout the codebase where a virtual
machine environment had to be implemented in order to test or run it.

The new environment is suitable to be used en the json tests, core
consensus and light client.
2016-12-06 02:16:03 +01:00
Jeffrey Wilcke 445feaeef5 core, core/state, trie: EIP158, reprice & skip empty account write
This commit implements EIP158 part 1, 2, 3 & 4

1. If an account is empty it's no longer written to the trie. An empty
  account is defined as (balance=0, nonce=0, storage=0, code=0).
2. Delete an empty account if it's touched
3. An empty account is redefined as either non-existent or empty.
4. Zero value calls and zero value suicides no longer consume the 25k
  reation costs.

params: moved core/config to params

Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
2016-11-13 10:44:04 +01:00
Felix Lange 87670a7ac1 all: remove weird files 2016-10-30 11:02:34 +01:00
Nick Johnson 00665a0b72 cmd/evm: Allow stdin and files as sources of bytecode (#3172)
* cmd/evm: Allow stdin and files as sources of bytecode

* cmd/evm: Print and exit instead of panicing

* cmd/evm: fix compile and vet errors
2016-10-29 12:07:38 +03:00
Jeffrey Wilcke 64af2aafda core, core/vm: added gas price variance table
This implements 1b & 1c of EIP150 by adding a new GasTable which must be
returned from the RuleSet config method. This table is used to determine
the gas prices for the current epoch.

Please note that when the CreateBySuicide gas price is set it is assumed
that we're in the new epoch phase.

In addition this PR will serve as temporary basis while refactorisation
in being done in the EVM64 PR, which will substentially overhaul the gas
price code.
2016-10-14 18:09:17 +02:00
Felix Lange 1f1ea18b54 core/state: implement reverts by journaling all changes
This commit replaces the deep-copy based state revert mechanism with a
linear complexity journal. This commit also hides several internal
StateDB methods to limit the number of ways in which calling code can
use the journal incorrectly.

As usual consultation and bug fixes to the initial implementation were
provided by @karalabe, @obscuren and @Arachnid. Thank you!
2016-10-06 15:32:16 +02:00
Péter Szilágyi cb84e3f029 cmd, core, internal, light, tests: avoid hashing the code in the VM 2016-10-01 16:01:58 +03:00
Felix Lange 6b727c0440 cmd/evm, cmd/geth, cmd/utils: move version handling to cmd/utils 2016-09-05 13:24:11 +02:00
Nick Johnson 781915f183 core/vm: Refactor tracing to make Tracer the main interface
This CL makes several refactors:
 - Define a Tracer interface, implementing the `CaptureState` method
 - Add the VM environment as the first argument of
   `Tracer.CaptureState`
 - Rename existing functionality `StructLogger` an make it an
   implementation of `Tracer`
 - Delete `StructLogCollector` and make `StructLogger` collect the logs
   directly
 - Change all callers to use the new `StructLogger` where necessary and
   extract logs from that.
 - Deletes the apparently obsolete and likely nonfunctional 'TraceCall'
   from the eth API.

Callers that only wish accumulated logs can use the `StructLogger`
implementation straightforwardly. Callers that wish to efficiently
capture VM traces and operate on them without excessive copying can now
implement the `Tracer` interface to receive VM state at each step and
do with it as they wish.

This CL also removes the accumulation of logs from the vm.Environment;
this was necessary as part of the refactor, but also simplifies it by
removing a responsibility that doesn't directly belong to the
Environment.
2016-08-22 09:26:15 +01:00
Péter Szilágyi 6362a9d610 Revert "test, cmd/evm, core, core/vm: illegal code hash implementation"
This reverts commit 7a5b571c67.
2016-06-29 11:44:51 +03:00
Jeffrey Wilcke 7a5b571c67 test, cmd/evm, core, core/vm: illegal code hash implementation
This implements a generic approach to enabling soft forks by allowing
anyone to put in hashes of contracts that should not be interacted from.
This will help "The DAO" in their endevour to stop any whithdrawals from
any DAO contract by convincing the mining community to accept their code
hash.
2016-06-22 11:38:25 +03:00
Jeffrey Wilcke e5165aeb27 cmd/evm: added --create flag indicating the exec code is to be created
This fixes an issue if you wanted to test out code deployment rather
than running a piece of code with an argument. This solves it by adding
a --create flag that indicates the Create function should be used rather
than the Call function.

This also adds a statedb.commit call so that the proper state can be
dumped when requested using the --dump flag.
2016-06-14 17:11:33 +02:00
Péter Szilágyi 90e07b19ab cmd: fix CLI package deprecation warnings 2016-06-10 11:23:00 +03:00
Bas van Kervel 861add3d72 cmd/geth: codegansta/cli package renamed to urfave/cli 2016-06-09 15:37:13 +02:00