compiler: link .syso files found in Go package directories #4593
Conversation
Among other things, this enables WebAssembly programs to link in custom sections, which can be stored in a relocatable wasm module with a .syso suffix in a package directory. This will simplify the build process for WASI 0.2, removing the need to run 'wasm-tools component embed' with the original source WIT files.
|
While this is one option, I don't think we should be going for this solution. The reason is that Do you have any objections against a special-purpose pragma for this purpose? It would basically just add the file to the linker, nothing else. Also, since this is going to be generated code and the uglyness is hidden, I don't see any fundamental reason why the |
This is an experiment, driven by a need to link in custom sections into the resulting .wasm binary. Using a .syso file in a package directory is a well-known way to accomplish this with other architectures in big Go.
We have a POC that proves this works: ydnar/wasi-http-go#13
Another example: https://tip.golang.org/src/crypto/internal/boring/syso/
@dgryski co-authored this live at WasmCon.