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Embed runtime version as a custom section (#8688)

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* emit a custom section from impl_runtime_apis!

This change emits a custom section from the impl_runtime_apis! proc macro.

Each implemented API will result to emitting a link section `runtime_apis`.
During linking all sections with this name will be concatenated and
placed into the final wasm binary under the same name.

* Introduce `runtime_version` proc macro

This macro takes an existing `RuntimeVersion` const declaration, parses
it and emits the version information in form of a linking section.
Ultimately such a linking section will result into a custom wasm
section.

* Parse custom wasm section for runtime version

* Apply suggestions from code review

Co-authored-by: David <dvdplm@gmail.com>

* Fix sc-executor integration tests

* Nits

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Refactor apis section deserialization

* Fix version decoding

* Reuse uncompressed value for CallInWasm

* Log on decompression error

* Simplify if

* Reexport proc-macro from sp_version

* Merge ReadRuntimeVersionExt

* Export `read_embedded_version`

* Fix test

* Simplify searching for custom section

Co-authored-by: David <dvdplm@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
Sergei Shulepov
2021-05-12 15:39:08 +02:00
committed by GitHub
parent 4f7c1df31e
commit 0849bcce0e
27 changed files with 833 additions and 289 deletions
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substrate/client/executor/wasmi/src/lib.rs
+8 -13
View File
@@ -641,18 +641,18 @@ impl WasmModule for WasmiRuntime {
/// Create a new `WasmiRuntime` given the code. This function loads the module and
/// stores it in the instance.
pub fn create_runtime(
code: &[u8],
blob: RuntimeBlob,
heap_pages: u64,
host_functions: Vec<&'static dyn Function>,
allow_missing_func_imports: bool,
) -> Result<WasmiRuntime, WasmError> {
let module = Module::from_buffer(&code).map_err(|_| WasmError::InvalidModule)?;
let data_segments_snapshot = DataSegmentsSnapshot::take(&blob)
.map_err(|e| WasmError::Other(e.to_string()))?;
// Extract the data segments from the wasm code.
//
// A return of this error actually indicates that there is a problem in logic, since
// we just loaded and validated the `module` above.
let (data_segments_snapshot, global_vals_snapshot) = {
let module = Module::from_parity_wasm_module(blob.into_inner())
.map_err(|_| WasmError::InvalidModule)?;
let global_vals_snapshot = {
let (instance, _, _) = instantiate_module(
heap_pages as usize,
&module,
@@ -660,12 +660,7 @@ pub fn create_runtime(
allow_missing_func_imports,
)
.map_err(|e| WasmError::Instantiation(e.to_string()))?;
let data_segments_snapshot = DataSegmentsSnapshot::take(&RuntimeBlob::new(code)?)
.map_err(|e| WasmError::Other(e.to_string()))?;
let global_vals_snapshot = GlobalValsSnapshot::take(&instance);
(data_segments_snapshot, global_vals_snapshot)
GlobalValsSnapshot::take(&instance)
};
Ok(WasmiRuntime {