Commit Graph

19 Commits

Author SHA1 Message Date
Sergey Pepyakin f6657bace4
Flat Stack (#98)
* Define Instruction Set.

* WIP

* WIP 2

* Tests

* Working

* Bunch of other tests.

* WIP

* WIP

* Use Vec instead of VecDeque.

* Calibrate the limits.

* Clean

* Clean

* Another round of cleaning.

* Ignore traces.

* Optimize value stack

* Optimize a bit more.

* Cache memory index.

* Inline always instruction dispatch function.

* Comments.

* Clean

* Clean

* Use vector to keep unresolved references.

* Estimate resulting size.

* do refactoring

* Validate the locals count in the begging

* Introduce Keep and DropKeep structs in isa

* Rename/Split Validator into Reader

* Document stack layout

* Remove println!

* Fix typo.

* Use .last / .last_mut in stack

* Update docs for BrTable.

* Review fixes.

* Merge.

* Add an assert that stack is empty after the exec
2018-07-04 10:08:45 +03:00
Wei Tang f91dc92119 Update parity-wasm dependency to 0.31 (#105)
* Update parity-wasm dependency to 0.31
* Fix tests
2018-06-29 14:10:04 +03:00
Jef 3890dd379f Preserve signalling bit in NaNs (#87)
* Preserve signalling bit in NaNs

* Fix warnings
2018-04-25 10:18:14 +03:00
Sergey Pepyakin 5cda9a05da Check the signature of host function. (#84) 2018-04-18 17:44:10 +03:00
Sergey Pepyakin 6253dd6fdf Args refactor (#71)
* Refactor TryInto → FromRuntimeValue.

Replace `TryInto<T, E>` with `FromRuntimeValue`.

The main difference is that `FromRuntimeValue` is implemented for the concrete type of the value we create, rather than on `RuntimeValue`. This makes more sense to me and seems more clear.

The `try_into` method is now implemented on `RuntimeValue` itself.

And finally, `FromRuntimeValue` has been made public.

* Impl AsRef<[RuntimeValue]> for RuntimeArgs

This impl can be used as an escape hatch if the user wants to use the inner slice.

* Little doc fixes for RuntimeArgs.
2018-03-14 01:23:12 +03:00
Sergey Pepyakin 6cf6a31970
Merge signature mismatch traps (#57) 2018-02-14 18:27:22 +03:00
Sergey Pepyakin 435bae5898
Use wasmi ValueType for RuntimeValue instead pwasm (#52)
`RuntimeValue::default` takes `parity_wasm::elements::ValueType` as an input parameter. 

This change fixes it to be wasmi's `ValueType`.
2018-02-14 13:36:17 +03:00
Sergey Pepyakin e273b9e40a Just bump framestack limits. (#50)
These limits seems to be picked arbitrary, and I just made it arbitrary larger.

We need to reconsider these limits, ideally providing to user a way to customize the limits.

FWIW, When the last time I've tried to run gcc's torture testsuite with wasmi it also bumped into this limit.

Fixes #41.
2018-02-13 09:29:04 +03:00
Sergey Pepyakin 483736b1bd
Memory units (#42)
* Initial implementation

* Not use grow as it is makes debug builds very slow

* Use Pages::BYTE_SIZE for LINEAR_MEMORY_PAGE_SIZE

* Tidy docs.

* Use memory_units from git.
2018-02-09 16:45:21 +03:00
Sergey Pepyakin c0ed715b37
Update testsuite (#39)
* ok_or_else in stack + top_mut.

* Model polymorphic stack explicitly

* Upgrade wasm testsuite.

* Update fixtures.

* Validate duplicate exports.

* Fix and clean spec runner.

* with_capcity for HashSet
2018-02-08 17:52:16 +03:00
Sergey Pepyakin 367f17989b Refine errors (#36)
* Get rid of Stack error

* Add UnexpectedSignature error and remove Value err

* Publish FuncInstance::invoke

* Rename Trap to TrapKind

* Replace Trap with struct. Enum is now TrapKind

* Fixes

* Update value.rs

* Avoid reversing parameter types iter.

* Add impl From<TrapKind> for Trap

* Remove redundant clone in prepare_function_args.

* Use .into() to convert TrapKind into Trap
2018-02-06 14:14:57 +03:00
Sergey Pepyakin c96735d6d6 Wasm function can only trap (#29)
* Introduce Trap struct.

* get_local can't fail.

* Add MemoryOutOfBounds trap.

* from_little_endian use slice instead of vec.

* MemoryAccessOutOfBounds for mem get and set.

* from_little_endian conversion can't fail.

* call_indirect traps.

* DivisionByZero and InvalidConversionToInt

* Use traps in value to convey an error

* select: int condition on stack top

* if: int condition on stack top

* Assert pops.

* Another protions of assert pops

* Introduce ValueStack

Also, hide FunctionContext and remove some stale code

* Traps in execution

* Make it compile.

* Check args before invoke.

* Document RuntimeArgs.

* Update host.rs

* Add rustdoc for Trap.
2018-02-01 14:59:21 +03:00
Sergey Pepyakin a98852e62a Couple of fixes 2018-01-23 18:12:52 +03:00
Sergey Pepyakin bf2b2acbc5 Reintroduce FuncInstance; Hide internals 2018-01-22 20:07:30 +03:00
Sergey Pepyakin 730ff68599 FuncInstances hold WeakRef 2018-01-22 19:57:00 +03:00
Sergey Pepyakin 44f61251c1 Hide FuncInstance 2018-01-22 19:38:57 +03:00
Sergey Pepyakin ca6299ba53 Hide ValueType. 2018-01-18 17:13:56 +03:00
Sergey Pepyakin e9470373f7 Migrate on Signature type. 2018-01-18 15:48:43 +03:00
Sergey Pepyakin 49347a63ee Initial commit 2018-01-17 19:54:06 +03:00