Commit Graph

62 Commits

Author SHA1 Message Date
Alex Sharov
52fd0d0e8b
Aggregator22.Unwind() (#5039)
* save

* save
2022-08-13 18:51:25 +07:00
sudeep
e13a318e0b
evm t8n to use ExecuteBlockEphemerally api (#4642)
* evm t8n tool to use ExecuteBlockEphemerally api (#4512)

* fix to set V, R, S in legacy transaction

* fix to dump post-execution alloc for evm t8n

* close tx in evm t8n

* populate current difficulty and gas used in output result

- update the ExecutionResult to include corresponding info (like
  Difficulty/GasUsed)

* initial attempt at migrating 'evm t8n' to use ExecuteBlockEphemerally

* using ExecutionResult in ExecuteBlockEphemerally

* bypass validations and integrate with EphemeralExecResult

* fixing output of 'evm t8n'

- remaining bits are "stateRoot" in results.txt and "balance" field for one account in
  alloc.txt (for testdata=1)

* get ExecuteBlockEphemerally to accept getTracer lambda

* fix build failure

* test cases for evm t8n

* more test cases for evm t8n

* fix stateRoot computation in evm t8n

* remove reward argument, as EBE itself takes care of it

* final cleanups for migration to using ExecuteBlockEphemerally

* change EBEforBSC to match EBE

* fix linter issues

* manually revert an unwanted diff

* avoid calculating ReceiptHash twice

* linter check

* minor correction

* remove unnecessary logic in EBEforBsc

* fix integration tests

* fix build
2022-07-07 12:47:00 +01:00
ledgerwatch
77dc35bb85
Revert "evm t8n tool to use ExecuteBlockEphemerally api (#4512)" (#4610)
* Revert "evm t8n tool to use ExecuteBlockEphemerally api (#4512)"

This reverts commit db93d2ea37.

* Fix compilation

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>
2022-07-02 23:24:20 +01:00
sudeep
db93d2ea37
evm t8n tool to use ExecuteBlockEphemerally api (#4512)
* fix to set V, R, S in legacy transaction

* fix to dump post-execution alloc for evm t8n

* close tx in evm t8n

* populate current difficulty and gas used in output result

- update the ExecutionResult to include corresponding info (like
  Difficulty/GasUsed)

* initial attempt at migrating 'evm t8n' to use ExecuteBlockEphemerally

* using ExecutionResult in ExecuteBlockEphemerally

* bypass validations and integrate with EphemeralExecResult

* fixing output of 'evm t8n'

- remaining bits are "stateRoot" in results.txt and "balance" field for one account in
  alloc.txt (for testdata=1)

* get ExecuteBlockEphemerally to accept getTracer lambda

* fix build failure

* test cases for evm t8n

* more test cases for evm t8n

* fix stateRoot computation in evm t8n

* remove reward argument, as EBE itself takes care of it

* final cleanups for migration to using ExecuteBlockEphemerally

* change EBEforBSC to match EBE

* fix linter issues

* manually revert an unwanted diff

* avoid calculating ReceiptHash twice

* linter check

* minor correction

* remove unnecessary logic in EBEforBsc
2022-07-02 06:52:23 +01:00
Frojdi Dymylja
499c27d2e1
change: port js tracer changes (#3128)
* 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
2021-12-15 13:19:58 +00:00
Alexandr Borodulin
bbb3cc978f
Starknet getcode (#3038)
* deploy_cairo_smartcontract

* deploy_cairo_smartcontract / 2

Add new transaction type for cairo and vm factory

* starknet_getcode

* deploy_cairo_smartcontract / 3

* deploy_cairo_smartcontract / 4

* deploy_cairo_smartcontract / 5

Co-authored-by: Aleksandr Borodulin <a.borodulin@axioma.lv>
2021-12-06 14:58:53 +00:00
ledgerwatch
350d7fe7a9
Adding support for vmTrace into trace_ routines (#2497)
* VmTrace

* Fixes to gasCall, beginning of vmTrace

* Fix opcode tracer

* Add mem and store, enable vmTrace for all methods

* Fix lint

* More nuances and debugging|

* More fixes

* Fix for trace_callMany

* Fix for trace_callMany

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>
2021-08-08 13:28:03 +01:00
Evgeny Danilenko
de26634d8d
TEVM status pruning (#2034)
* use trace for TEVM status

* restore testdata

* fix getting contract from plain state

* unwind

* linters

* reproducible build debug

* debug

* debug

* remove debug
2021-06-11 09:34:25 +01:00
Alex Sharov
0be3044b7e
rename (#1978)
* rename

* rename "make grpc"

* rename "abi bindings templates"

* rename "abi bindings templates"
2021-05-20 19:25:53 +01:00
ledgerwatch
59e5502744
Initial work on RPC streaming (#1880)
* Initial work on RPC streaming

* Create the stream and pass it on

* trace_filter expressed as streamable (not finished)

* Reenable call trace index

* Add new line

* Remove storage mode override

* Tool for overriding storage mode

* Diagnostics

* Make trace_filter more streamy

* Streaming debug_traceTransaction and debug_traceCall

* Fix test

* Log error on stream flush

* Enable streaming for http

* Flush the stream too

* Make trace_filter flush too

* Stop streaming if client is not interested

* Try to quiet annoying test|

* Revert "Try to quiet annoying test|"

This reverts commit 42849257bfa52e90140aa535af34b957cd97a222.

* Debug log for test

* Proceed with handshake regardless of whether peer notification worked

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>
Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>
2021-05-06 18:37:38 +01:00
Alexey Sharp
519b19f8aa Compilation fixes 2021-03-14 08:00:37 +00:00
Péter Szilágyi
d00a121246 core, eth: unship EIP 2315
# Conflicts:
#	core/vm/contract.go
#	core/vm/gen_structlog.go
#	core/vm/instructions.go
#	core/vm/instructions_test.go
#	core/vm/interpreter.go
#	core/vm/logger.go
#	core/vm/logger_json.go
#	core/vm/logger_test.go
#	core/vm/stack/stack.go
#	eth/tracers/tracer.go
#	eth/tracers/tracer_test.go
2021-03-12 16:05:37 +01:00
ledgerwatch
0953fd42cb
WIP trace_call implementation (#1399)
* trace_call initial

* Fix tests

* More tracing

* Add more fields to the action

* Completed first example query

* Add initial bench11 to compare trace_call with OpenEthereum

* Exclude precompile calls from call traces

* Add self-destruct, call types, more comparison in rpctest

* Support for execution errors

* Stack underflow error and delegatecall value

* Fix lint

* Fix suicide traceAddress, Bad instruction error

* Fix lint

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>
2020-12-14 11:27:52 +00:00
Igor Mandrigin
5d98f8d40d post-rebase. fix imports 2020-12-03 17:37:38 +01:00
Martin Holst Swende
ca3d54a32c 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
# Conflicts:
#	cmd/evm/internal/t8ntool/execution.go
#	cmd/geth/chaincmd.go
#	cmd/geth/consolecmd.go
#	cmd/geth/main.go
#	cmd/geth/usage.go
#	cmd/utils/flags.go
#	core/state/statedb.go
#	core/state/statedb_test.go
#	core/vm/evm.go
#	core/vm/interpreter.go
#	core/vm/logger.go
#	core/vm/runtime/runtime.go
#	eth/api_tracer.go
2020-12-03 17:37:38 +01:00
Marius van der Wijden
f68ac9d1c3 core/vm: marshall returnData as hexstring in trace logs (#21715)
* core/vm: marshall returnData as hexstring in trace logs

* core/vm: marshall returnData as hexstring in trace logs
# Conflicts:
#	core/vm/gen_structlog.go
2020-12-03 17:37:38 +01:00
Igor Mandrigin
0f1b2f3595 geth-1.9.23: post-rebase fixups 2020-10-26 17:16:00 +01:00
Guillaume Ballet
6ae9473675 core/vm: dedup config check in markdown logger (#21655)
* core/vm: dedup config check

* review feedback: reuse buffer
# Conflicts:
#	core/vm/logger.go
2020-10-26 17:16:00 +01:00
Igor Mandrigin
8600616c3d geth 1.9.18 post-rebase fixups 2020-08-08 17:33:35 +02:00
Martin Holst Swende
a4b70f9ee9 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>
# Conflicts:
#	core/state/statedb.go
#	core/vm/contracts_test.go
#	core/vm/evm.go
#	core/vm/instructions.go
#	core/vm/interpreter.go
#	core/vm/logger.go
#	core/vm/logger_json.go
#	core/vm/logger_test.go
#	core/vm/runtime/runtime_test.go
#	core/vm/stack/stack.go
#	eth/tracers/tracer.go
#	eth/tracers/tracer_test.go
#	trie/secure_trie.go
2020-08-07 13:46:26 +02:00
gary rong
f5b6ae0da1 core, eth, internal: include read storage entries in structlog output (#21204)
* core, eth, internal: extend structLog tracer

* core/vm, internal: add storage view

* core, internal: add slots to storage directly

* core: remove useless

* core: address martin's comment

* core/vm: fix tests
# Conflicts:
#	core/vm/logger.go
#	core/vm/logger_test.go
2020-08-07 11:17:27 +02:00
Paweł Bylica
924c03abf9 core/vm: use uint256 in EVM implementation (#20787)
* core/vm: use fixed uint256 library instead of big

* core/vm: remove intpools

* core/vm: upgrade uint256, fixes uint256.NewFromBig

* core/vm: use uint256.Int by value in Stack

* core/vm: upgrade uint256 to v1.0.0

* core/vm: don't preallocate space for 1024 stack items (only 16)

Co-authored-by: Martin Holst Swende <martin@swende.se>
# Conflicts:
#	core/vm/common.go
#	core/vm/contract.go
#	core/vm/eips.go
#	core/vm/evm.go
#	core/vm/gas_table.go
#	core/vm/instructions.go
#	core/vm/instructions_test.go
#	core/vm/interpreter.go
#	core/vm/logger.go
#	core/vm/logger_json.go
#	core/vm/logger_test.go
#	core/vm/stack/stack.go
#	go.mod
#	go.sum
2020-08-07 11:04:19 +02:00
Igor Mandrigin
93f6c4c01a post-rebase fixups 2020-06-15 19:38:54 +03:00
Greg Colvin
57e88afcd4 core/vm: EIP-2315, JUMPSUB for the EVM (#20619)
* core/vm: implement EIP 2315, subroutines for the EVM

* core/vm: eip 2315 - lintfix + check jump dest validity + check ret stack size constraints

  logger: markdown-friendly traces, validate jumpdest, more testcase, correct opcodes

* core/vm: update subroutines acc to eip: disallow walk-into

* core/vm/eips: gas cost changes for subroutines

* core/vm: update opcodes for EIP-2315

* core/vm: define RETURNSUB as a 'jumping' operation + review concerns

Co-authored-by: Martin Holst Swende <martin@swende.se>
# Conflicts:
#	core/vm/contract.go
#	core/vm/instructions_test.go
#	core/vm/interpreter.go
#	core/vm/logger.go
#	core/vm/logger_json.go
#	core/vm/logger_test.go
#	core/vm/runtime/runtime_test.go
#	eth/tracers/tracer.go
2020-06-15 19:38:13 +03:00
Evgeny Danilenko
8d7e603f07
stack pool (#627) 2020-06-05 17:45:56 +03:00
gary rong
ad9e4241b1 all: seperate consensus error and evm internal error (#20830)
* all: seperate consensus error and evm internal error

There are actually two types of error will be returned when
a tranaction/message call is executed: (a) consensus error
(b) evm internal error. The former should be converted to
a consensus issue, e.g. The sender doesn't enough asset to
purchase the gas it specifies. The latter is allowed since
evm itself is a blackbox and internal error is allowed to happen.

This PR emphasizes the difference by introducing a executionResult
structure. The evm error is embedded inside. So if any error
returned, it indicates consensus issue happens.

And also this PR improve the `EstimateGas` API to return the concrete
revert reason if the transaction always fails

* all: polish

* accounts/abi/bind/backends: add tests

* accounts/abi/bind/backends, internal: cleanup error message

* all: address comments

* core: fix lint

* accounts, core, eth, internal: address comments

* accounts, internal: resolve revert reason if possible

* accounts, internal: address comments
# Conflicts:
#	accounts/abi/abi.go
#	accounts/abi/bind/backends/simulated.go
#	cmd/geth/retesteth.go
#	core/state/snapshot/difflayer_test.go
#	core/state/snapshot/disklayer_test.go
#	core/state/snapshot/iterator_test.go
#	core/state_processor.go
#	core/state_transition.go
#	core/vm/evm.go
#	core/vm/instructions.go
#	core/vm/jump_table.go
#	eth/api_tracer.go
#	internal/ethapi/api.go
#	les/odr_test.go
#	light/odr_test.go
#	tests/state_test_util.go
2020-05-20 15:26:22 +03:00
Andrew Ashikhmin
5bc45f2426
Use uint256 in EVM implementation (kudos to Pawel Bylica) (#551)
* core/vm: improve jumpdest lookup

* Use uint256 in EVM implementation (kudos to Pawel Bylica)

* Safety precaution in opMulmod

Co-authored-by: Martin Holst Swende <martin@swende.se>
2020-05-18 08:10:59 +01:00
nebojsa94
7b91786136 core/vm: fix tracer interface parameter name (#20294) 2019-12-03 13:32:21 +01:00
Alexey Akhunov
fe01bccbb8 Apply Turbo-Geth modifications to go-ethereum codebase 2019-11-01 21:52:03 +01:00
hydai
9b3601cfce core/vm: fix typos in comments (#19391) 2019-04-04 12:30:10 +02:00
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
Guillaume Ballet
598f786aab core/vm: clear linter warnings (#17057)
* core/vm: clear linter warnings

* core/vm: review input

* core/vm.go: revert lint in noop as per request
2018-06-26 15:56:25 +03:00
kiel barry
a7720b5926 core: golint updates for this or self warning (#16633) 2018-05-02 11:27:59 +03:00
dm4
3ebcf92b42 cmd/evm: print vm output when debug flag is on (#16326) 2018-04-06 12:43:36 +02:00
Felix Lange
5c2f1e0014 all: update generated code (#15808)
* core/types, core/vm, eth, tests: regenerate gencodec files

* Makefile: update devtools target

Install protoc-gen-go and print reminders about npm, solc and protoc.
Also switch to github.com/kevinburke/go-bindata because it's more
maintained.

* contracts/ens: update contracts and regenerate with solidity v0.4.19

The newer upstream version of the FIFSRegistrar contract doesn't set the
resolver anymore. The resolver is now deployed separately.

* contracts/release: regenerate with solidity v0.4.19

* contracts/chequebook: fix fallback and regenerate with solidity v0.4.19

The contract didn't have a fallback function, payments would be rejected
when compiled with newer solidity. References to 'mortal' and 'owned'
use the local file system so we can compile without network access.

* p2p/discv5: regenerate with recent stringer

* cmd/faucet: regenerate

* dashboard: regenerate

* eth/tracers: regenerate

* internal/jsre/deps: regenerate

* dashboard: avoid sed -i because it's not portable

* accounts/usbwallet/internal/trezor: fix go generate warnings
2018-01-08 14:15:57 +02:00
Felix Lange
1c2378b926
tests: update to upstream commit 2bb0c3da3b (#15806)
Also raise traceLimit once again and print the VM
error and output on failure.
2018-01-04 13:18:30 +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
Péter Szilágyi
b0190189a3
core/vm, internal/ethapi: tracer no full storage, nicer json output (#15499)
* core/vm, internal/ethapi: tracer no full storage, nicer json output

* core/vm, internal/ethapi: omit disabled trace fields
2017-11-16 18:53:18 +02:00
Péter Szilágyi
b872961ec8
consensus, core, tests: implement Metropolis EIP 649 2017-08-24 17:16:39 +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
Felix Lange
3e0dbe0eaa core/vm: remove logging and add section labels to struct logs (#14782) 2017-07-19 14:32:45 +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
Yohann Leon
6742fc526f core/vm: use uint64 instead of *big.Int in tracer (#3805) 2017-03-22 15:32:51 +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
5f7826270c all: unify big.Int zero checks, use common/math in more places (#3716)
* common/math: optimize PaddedBigBytes, use it more

name              old time/op    new time/op    delta
PaddedBigBytes-8    71.1ns ± 5%    46.1ns ± 1%  -35.15%  (p=0.000 n=20+19)

name              old alloc/op   new alloc/op   delta
PaddedBigBytes-8     48.0B ± 0%     32.0B ± 0%  -33.33%  (p=0.000 n=20+20)

* all: unify big.Int zero checks

Various checks were in use. This commit replaces them all with Int.Sign,
which is cheaper and less code.

eg templates:

    func before(x *big.Int) bool { return x.BitLen() == 0 }
    func after(x *big.Int) bool  { return x.Sign() == 0 }

    func before(x *big.Int) bool { return x.BitLen() > 0 }
    func after(x *big.Int) bool  { return x.Sign() != 0 }

    func before(x *big.Int) int { return x.Cmp(common.Big0) }
    func after(x *big.Int) int  { return x.Sign() }

* common/math, crypto/secp256k1: make ReadBits public in package math
2017-02-28 15:09:11 +01:00
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
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