Commit graph

14 commits

Author SHA1 Message Date
Arran Schlosberg
12b8aa5c2e
fix: pre-state tracer logging storage after call from precompile (#64)
## Why this should be merged

Fixes tracing when a stateful precompile calls another contract that
itself accesses storage.

## How this works

The pre-state tracer from `eth/tracers/native` doesn't implement
`CaptureEnter()` (entry of a new context), instead relying on
`CaptureState()` (per-opcode tracing) to detect that a new contract has
been entered. In doing so, it [maintains an
invariant](cb7eb89341/eth/tracers/native/prestate.go (L160))
that is expected when `CaptureState(vm.SLOAD, ...)` is called—breaking
the invariant results in a panic due to a nil map.

The fix involves (a) maintaining the invariant as part of
`CaptureEnter()` (previously a no-op); and (b) calling said method
inside `vm.PrecompileEnvironment.Call()`. The latter has the added
benefit of properly handling all tracing involving an outbound call from
precompiles.

## How this was tested

New integration test demonstrates that the tracer can log the retrieved
storage value.

---------

Co-authored-by: Darioush Jalali <darioush.jalali@avalabs.org>
2024-10-29 17:26:29 +11:00
Arran Schlosberg
4410f807c2
Merge branch 'auto-rename-module_source-2bd6bd01d2e8561dd7fc21b631f4a34ac16627a1_workflow-c1fc594f020d23958b641a4e5a856b6e52c49d3bece94b95594864db16c1b0fc-main' into arr4n/rename-module 2024-10-17 13:07:28 +11:00
Arran Schlosberg
51cd795878
fix: vm.WithUNSAFECallerAddressProxying under DELEGATECALL (#50)
* fix: `vm.WithUNSAFECallerAddressProxying` under `DELEGATECALL`

* test: `vm.WithUNSAFECallerAddressProxying()` effect on outgoing caller addr

* chore: mark `eth/tracers/js` test flaky

* feat: `vm.PrecompileEnvironment.IncomingCallType()`

* chore: minor documentation edit

* doc: `PrecompileEnvironment` example for determining actual caller

* chore: placate the linter
2024-10-07 12:46:14 +01:00
Arran Schlosberg
210f8ab8e1
feat: vm.PrecompiledStatefulContract can make CALLs (#40)
* feat: `vm.PrecompiledStatefulContract` can make `CALL`s

* fix: caller propagation

* feat: precompile can override default caller in `Call()`

* refactor: `WithUNSAFEForceDelegate()` replaces `WithCaller()`

* refactor: `WithUNSAFECallerAddressProxying()` instead of `ForceDelegate`

This matches the pattern used by `ava-labs/coreth` `NativeAssetCall`.

* refactor: `type callType` replaces `rwInheritance` + `delegation` types

* refactor: abstract return-data-proxy contract bytecode

* doc: fix comments from `46346f51`

* fix: `PrecompileEnvironment.Addresses()` for all call types

* chore: readability, linting & mark upstream test flaky

* test: `PrecompileEnvironment.Call()`

* refactor: improved {read,maintain}ability

* doc: fix `evmCallArgs` example

* test: `PrecompileEnvironment.Call()` input data

* fix: write protection for non-zero call value
2024-09-30 17:26:50 +01:00
Arran Schlosberg
f1dba53688
feat: params.RulesHooks.ActivePrecompiles override (#39) 2024-09-26 15:36:07 +01:00
Arran Schlosberg
dc619990f5
doc: licensing of libevm additions and modifications (#34)
* doc: licensing of libevm extensions and modifications

* chore: add license headers via linter

* chore: `golangci-lint run --fix`

* chore: `golangci-lint run --fix`

* chore: fix `libevm/libevm.go` header

* chore: `s/extensions/additions/`

* chore: add missing headers
2024-09-19 21:38:26 +00:00
Arran Schlosberg
81e109afcc
feat: PrecompileEnvironment.ChainConfig() (#32) 2024-09-18 12:29:56 -04:00
Arran Schlosberg
ab357e0279
feat: vm.PrecompileEnvironment access to block info (#27) 2024-09-17 13:08:42 -04:00
Arran Schlosberg
c5da3ca99e
refactor!: gas consumption for stateful precompiles (#26)
* refactor!: gas consumption for stateful precompiles

* chore: remove receiver & arg names on `statefulPrecompile.RequiredGas()`

* doc: `vm.statefulPrecompile`
2024-09-17 12:58:59 -04:00
Arran Schlosberg
38eaaab96c
feat!: RulesHooks.CanCreateContract() accepts and returns gas (#28)
* refactor!: `RulesHooks.CanCreateContract()` via `defer`

`TestCanCreateContract` is unchanged and merely moved to the appropriate file.

* feat!: `RulesHooks.CanCreateContract()` accepts and returns gas

* chore: move `TestCanCreateContract` to original file

Simplifies code review

* chore: pacify linter

* refactor!: revert to non-deferred call (not at start)
2024-09-17 12:14:17 -04:00
Arran Schlosberg
58f38836c0
feat: read-only stateful precompiles (#20)
* feat: read-only argument to stateful precompiles

* refactor: group `PrecompiledStatefulRun()` args except input

* test: read-only status of all `EVM.*Call*()` methods

* feat: `PrecompileEnvironment.ReadOnlyStateDB()`

* doc: warning about allowing recursive calling

* test: precompile call from within read-only env

* refactor: introduce `{inherit,force}ReadOnly` consts

* fix: `nolint` verbose if statement
2024-09-14 10:45:18 +01:00
Arran Schlosberg
04543ea837
chore: golangci-lint CI workflow (#16)
* chore: `golangci-lint` CI workflow

* fix: make `golangci-lint` happy

* chore: bump `actions/{checkout,setup-go}` versions

* chore: overhaul `.golanci.yml` config

* fix: all linter issues

* chore: exclude non-libevm linters + change deprecated option

* fix: add overflow check in example

* fix: try again; different local version?

* chore: this is trying my patience

* chore: enable `gci` and fix ordering

* chore: mark `ethclient/gethclient` test as flaky

* chore: mark `eth/catalyst` test as flaky
2024-09-12 20:31:04 +01:00
Arran Schlosberg
72744cebe7
refactor: abstract hookstest.Register() out of hookstest.Stub.Register() (#12) 2024-09-11 17:52:14 +01:00
Arran Schlosberg
5429fd87c8
chore: squash arr4n/libevm into libevm (#7)
* feat: pseudo-generic extra payloads in `params.ChainConfig` and `params.Rules`

* feat: `params.ExtraPayloadGetter` for end-user type safety

* refactor: payloads only available through `params.ExtraPayloadGetter`

* chore: make `libevm/examples/extraparams` a `params` testable example

* doc: `libevm/pseudo` package comments and improved readability

* doc: `params.*Extra*` comments and improved readability

* doc: `params.ExtraPayloadGetter` comments and improved readability

* doc: `params/config.libevm_test.go` comments and improved readability

* refactor: simplify `params.ChainConfig.UnmarshalJSON()`

* refactor: abstract new/nil-pointer creation into `pseudo.Constructor`s

* feat: precompile override via `params.Extras` hooks

* doc: flesh out `PrecompileOverride()` in example

* doc: complete commentary and improve readability

* refactor: `ChainConfig.Hooks()` + `Rules` equivalent

* chore: rename precompiles test file in keeping with geth equivalent

* feat: stateful precompiles + allowlist hooks

The allowlist hooks are included in this commit because they allow for the same functionality as stateful precompiles in `ava-labs/coreth` and `ava-labs/subnet-evm`.

* fix: `StateTransition.canExecuteTransaction()` used `msg.From` instead of `To`

* test: `params.RulesHooks.CanCreateContract` integration

* test: `params.RulesHooks.CanExecuteTransaction` integration

* test: `vm.NewStatefulPrecompile()` integration

* refactor: simplify test of `CanCreateContract`

* refactor: abstract generation of random `Address`/`Hash` values

* doc: full documentation + readability refactoring/renaming

* fix: remove circular dependency in tests
2024-09-10 19:20:32 +01:00