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[browser] fix trimming of LegacyExports with WasmEnableLegacyJsInterop #83664

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merged 3 commits into from
Apr 19, 2023
Merged

[browser] fix trimming of LegacyExports with WasmEnableLegacyJsInterop #83664

merged 3 commits into from
Apr 19, 2023

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pavelsavara
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@pavelsavara pavelsavara commented Mar 20, 2023 •
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This is 2nd attempt on enabling trimming of legacy interop, in which

  • there is visibility chain from JSFunctionBinding.BindJSFunction -> LegacyExportsTrimmingRoot -> LegacyExports by default.
  • there is ILLInk substitution file ILLink.Substitutions.LegacyJsInterop.xml which is cutting the chain at LegacyExportsTrimmingRoot.TrimWhenNotWasmEnableLegacyJsInterop
    • it is used only when there is wasm workload and the WasmEnableLegacyJsInterop is set to false

Other changes:

  • test in advanced sample
  • fix of #if DISABLE_LEGACY_JS_INTEROP in native code
  • new variable nativeLegacyJsInterop which could be set during link time with workload on customer machine
  • test in System.Runtime.InteropServices.JavaScript.Tests

@pavelsavara pavelsavara added this to the 8.0.0 milestone Mar 20, 2023
@pavelsavara pavelsavara requested a review from maraf March 20, 2023 10:15
@pavelsavara pavelsavara self-assigned this Mar 20, 2023
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ghost commented Mar 20, 2023

Tagging subscribers to 'arch-wasm': @lewing
See info in area-owners.md if you want to be subscribed.

Issue Details

There is problem with E2E test of blazor.
The reason is that the original implementation doesn't have logic nor the file ILLink.Descriptors.LegacyJsInterop.xml available when the workload is not available, when compiling Blazor.

This is alternate implementation, in which

  • there is visibility chain from JSFunctionBinding.BindJSFunction -> LegacyExportsTrimmingRoot.PreventTrimming -> LegacyExports.
  • there is ILLInk substitution which is cutting the chain at LegacyExportsTrimmingRoot.PreventTrimming, only when there is workload and the WasmEnableLegacyJsInterop is set to false
Author: pavelsavara
Assignees: pavelsavara
Labels:

arch-wasm, area-System.Runtime.InteropServices.JavaScript
Milestone: 8.0.0

This was referenced Mar 20, 2023
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@pavelsavara pavelsavara marked this pull request as ready for review March 20, 2023 12:44
maraf
maraf reviewed Mar 20, 2023
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My questions above are non-blocking

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@pavelsavara
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@vitek-karas is there nicer way how to create visibility chain (to multiple public methods) which could be easily trimmed with one substitution file ?
Please see LegacyExports.cs and ILLink.Substitutions.LegacyJsInterop.xml on this PR. Thank you.

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/azp run runtime-wasm

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amcasey commented Mar 20, 2023

Who's driving this now that @pavelsavara is (I understand) out?

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kg commented Mar 20, 2023

Who's driving this now that @pavelsavara is (I understand) out?

I don't know if a hand-off was arranged or not. I can kick off an email chain if necessary.

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amcasey commented Mar 20, 2023

Who's driving this now that @pavelsavara is (I understand) out?

I don't know if a hand-off was arranged or not. I can kick off an email chain if necessary.

Could you? aspnetcore is a little nervous about shipping without having taken an update in two weeks. Thanks!

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@maraf will take it from here tomorrow morning.
I could not figure out last failure on #83664 and I'm off in 2 hours.

The minimal #83637 is also acceptable way to unblock this.

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@maraf

Wasm.Console.Bench.Sample and Wasm.BrowserProfile.Sample are failing in wasm-ld to link mono_wasm_invoke_js_with_args_ref and other legacy symbols. I have no idea why

This was referenced Mar 21, 2023
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maraf commented Mar 21, 2023

We can't figure it out. It seems that emcc has some side effects on builds running in parallel. The order in which samples are compiled matters. Locally it runs even when compiling samples in parallel.

@maraf maraf marked this pull request as draft March 21, 2023 20:07
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maraf commented Mar 21, 2023

note: In the last run https://dev.azure.com/dnceng-public/public/_build/results?buildId=212475&view=results the advanced sample ran after bench and profile samples

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@vitek-karas is there nicer way how to create visibility chain (to multiple public methods) which could be easily trimmed with one substitution file ?

I think this is fine, given the requirements. It's not nice, but I can't think of a much better way. The ask is a bit weird though :-).

@pavelsavara pavelsavara force-pushed the browser_fix_WasmEnableLegacyJsInterop branch from c8fc59e to 8b7ea8c Compare April 13, 2023 09:38
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Merge branch 'main' into browser_fix_WasmEnableLegacyJsInterop
203111b 
# Conflicts:
#	src/mono/nuget/Microsoft.NET.Workload.Mono.Toolchain.Current.Manifest/WorkloadManifest.targets.in
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fix
a9bf333
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/azp run runtime-wasm

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CI failures are unrelated

@pavelsavara pavelsavara marked this pull request as ready for review April 18, 2023 14:33
@pavelsavara pavelsavara requested a review from maraf April 18, 2023 14:34
This was referenced Apr 18, 2023
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Looks good to me 👍

@pavelsavara pavelsavara merged commit c2663b5 into dotnet:main Apr 19, 2023
@ghost ghost locked as resolved and limited conversation to collaborators May 19, 2023
@pavelsavara pavelsavara deleted the browser_fix_WasmEnableLegacyJsInterop branch September 2, 2024 15:30
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