[wasm][coreclr] Interpret everything on wasm

[radekdoulik]

Do not try to setup the jit and use it, instead use the interpreter

[Copilot]

Pull Request Overview

This PR ensures that on the WebAssembly (WASM) target, the runtime uses the interpreter exclusively and skips loading or invoking the JIT.

• Wraps JIT-loading calls in #ifndef TARGET_WASM to disable JIT on WASM
• Statically links interpreter startup and getJit entry points for WASM in codeman.cpp
• Defines INTERP_API for symbol visibility and forces interpretation of all methods in eeinterp.cpp when building for WASM

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
src/coreclr/vm/jitinterface.cpp	Add TARGET_WASM guards to bypass JIT loading and runtime paths
src/coreclr/vm/codeman.cpp	Conditionally include interpreter headers and stub JIT startup/getJit
src/coreclr/interpreter/interpretershared.h	Define INTERP_API macro for cross-platform symbol visibility
src/coreclr/interpreter/eeinterp.cpp	Force doInterpret = true on WASM builds

Comments suppressed due to low confidence (2)

src/coreclr/vm/jitinterface.cpp:13365

• The preprocessor directive #elif without a condition is invalid here. Replace it with #else or #elif !defined(TARGET_WASM) to properly handle the non-WASM branch.

#elif // !TARGET_WASM

src/coreclr/vm/codeman.cpp:1781

• This #elif directive is missing an expression and will not compile. Use #else to cover the non-WASM case.

#elif

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[radekdoulik]

The armel build was broken in main too and was fixed with #115767

[jkotas]

Could you please fix the merge conflicts?

[jkotas]

Nits

[jkotas]

LGTM once the CI is green