why:
these files provide part of the externally accessible interface
provided by vm_state*.nim. so the new filename indicates that the
source code belongs to vm2 (rather than vm).
why:
vm2 enabled by ENABLE_VM2=1 behaves as vm without ENABLE_EVMC=1 until
it doesn't in some future fatch set. this leaves some wiggle room
to work on a vm copy without degrading the original implementation.
details:
+ additional make flag ENABLE_VM2=1 (or ENABLE_VM2=0 to explicitely disable)
+ when both flags ENABLE_EVMC=1 and ENABLE_VM2=1 are present, the former
flag ENABLE_EVMC=1 takes precedence, this is implemented at the NIM
compiler level for -d:evmc_enabled and -d:vm2_enabled
why:
the nvm_ prefix was used inside the vm folder to hide them temporarily
from the outside world while writing export wrappers. now all
functionality is accessed via vm_*, rather than vm/* imports.
todo:
at a later stage the import headers of the vm modules need to get fixed
to meet style guide standards (as jacek kindly pointed out.)
This blindly changes logging to nim-chronicles - issues that ensue:
* keeps gas cost computation logs hidden behind flag
* unclear if logScope is practical - for example, since vm is split over
many files, topics get lost when using simple top-level per-module
topics
* when passing named object around, scope should incliude the name of
the object but this is caught neither by logScope nor by dynamicLogScope
* move forks constants, rename errors
* Move vm/utils to vm/interpreter/utils
* initial opcodes refactoring
* Add refactored Comparison & Bitwise Logic Operations
* Add sha3 and address, simplify macro, support pop 0
* balance, origin, caller, callValue
* fix gas copy opcodes gas costs, add callDataLoad/Size/Copy, CodeSize/Copy and gas price opcode
* Update with 30s, 40s, 50s opcodes + impl of balance + stack improvement
* add push, dup, swap, log, create and call operations
* finish opcode implementation
* Add the new dispatching logic
* Pass the opcode test
* Make test_vm_json compile
* halt execution without exceptions for Return, Revert, selfdestruct (fix#62)
* Properly catch and recover from EVM exceptions (stack underflow ...)
* Fix byte op
* Fix jump regressions
* Update for latest devel, don't import old dispatch code as quasiBoolean macro is broken by latest devel
* Fix sha3 regression on empty memory slice and until end of range slice
* Fix padding / range error on expXY_success (gas computation left)
* update logging procs
* Add tracing - expXY_success is not a regression, sload stub was accidentally passing the test
* Reuse the same stub as OO implementation
* Delete previous opcode implementation
* Delete object oriented fork code
* Delete exceptions that were used as control flows
* delete base.nim 🔥, yet another OO remnants
* Delete opcode table
* Enable omputed gotos and compile-time gas fees
* Revert const gasCosts -> generates SIGSEGV
* inline push, swap and dup opcodes
* loggers are now template again, why does this pass new tests?
* Trigger CI rebuild after rocksdb fix https://github.com/status-im/nim-rocksdb/pull/5
* Address review comment on "push" + VMTests in debug mode (not release)
* Address review comment: don't tag fork by default, make opcode impl grepable
* Static compilation fixes after rebasing
* fix the initialization of the VM database
* add a missing import
* Deactivate balance and sload test following #59
* Reactivate stack check (deactivated in #59, necessary to pass tests)
* Merge remaining opcodes implementation from #59
* Merge callDataLoad and codeCopy fixes, todo simplify see #67
Merge note: currently cannot compile due to `quasiBoolean` (#63). This will be solved by https://github.com/status-im/nimbus/pull/65
----
* Implemented most of the stubbed out state handling instructions
The code compiles, but still fails at the moment due to incorrect
initialization of the VM. Don't merge yet. More commits will be
pushed in the coming days.
* Fixed crash
* trie put and del are void now
* getBlockTransactionData and getReceipts
* Working code for extcodesize0.json
* fix origin.json
* fix calldatasize1
* fix calldataloadSizeTooHighPartial
* fix calldataloadSizeTooHigh
* more efficient PushX implementation
* fix and, or, xor
Some of the other clients don't bother to store block numbers as
256-bit integers (64 bits or even 32 bit are enough).
The changes here are based on helpers introduced in eth_common
that try to abstract away all conversion steps in the code between
VM words and block numbers in variables in fields. Unfortunately,
this turn out to be more work than anticipated and I've postponed
finishing the refactoring for now (Block numbers are still 256 bit).
* Move and cleanup interpreter files - prepare for redesign of VM
* fix call comment aobut recursive dependencies
* memory: use a template again and avoid (?) a cstring-> string conversion
* Fix stack test regression
* Fix recursive dependency on logging_ops, test_vm_json compiles but regression :/
* Fix signextend regression
* Fix 3 signed test and sha3 test
Jordan Hrycaj
jangko
Ștefan Talpalaru
Yuriy Glukhov
Zahary Karadjov
Jacek Sieka
Mamy Ratsimbazafy