Is there any chance that this can be resurrected / implemented? I'd love to be able to snapshot large Emscripten apps (such as apps that use Pyodide <https://pyodide.org/en/stable/>).
Failing that, is there a way to detect if a Context has any WebAssembly hanging off of it anywhere, so I know to not even try to serialize it? Thanks, -Tudor. On Thursday, October 27, 2022 at 2:11:35 PM UTC-7 yul...@google.com wrote: > Thanks for your reply, Clemens. I opened the issue 13430 > <https://bugs.chromium.org/p/v8/issues/detail?id=13430>. Thanks! > > Best, > Yulan > > On Thursday, October 27, 2022 at 4:30:04 AM UTC-7 Clemens Backes wrote: > >> Wasm support in snapshots was never added (see issue 8176 >> <http://crbug.com/v8/8176>). Supporting it would be a non-trivial amount >> of work, as we have to make sure to serialize the compiled Wasm code >> (living outside the JS heap) on snapshot creation, and properly reconstruct >> all involved functions and objects from that when deserializing. >> >> Please go ahead and open an issue on http://crbug.com/v8/new and >> describe your use case, so we can include this in our planning for the >> upcoming quarters. >> >> Cheers, >> Clemens >> >> On Wed, Oct 26, 2022 at 8:07 AM 'Yulan Wang' via v8-users < >> v8-u...@googlegroups.com> wrote: >> >>> I'm trying to use snapshot to cache the context with compiled code (JS >>> source code and wasm bytes code) inside. I can go througth with JS code. >>> >>> But for wasm, I can compile the wasm code in regular isolate, but once I >>> declare SnapshotCreator in the code like follow line: >>> >>> `Isolate::CreateParams create_params; >>> create_params.array_buffer_allocator = >>> v8::ArrayBuffer::Allocator::NewDefaultAllocator(); >>> auto isolate = Isolate::New(create_params); >>> SnapshotCreator creator(isolate);` >>> >>> WasmModuleObject::Compile doesn't work and return a >>> non-WasmModuleObject. >>> >>> I also tried with v8::Script::Compile, and I got the same issue. The >>> code works without SnapshotCreator declare, but doesn't work with >>> SnapshotCreator. >>> >>> Is there any compiler restraint in SnapshotCreator that cannot compile >>> wasm code, or I miss any configs? Thanks! >>> >>> -- >>> -- >>> v8-users mailing list >>> v8-u...@googlegroups.com >>> http://groups.google.com/group/v8-users >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "v8-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to v8-users+u...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/v8-users/267acde6-1eb1-447b-b2f4-d0c8d2407992n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/v8-users/267acde6-1eb1-447b-b2f4-d0c8d2407992n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> >> >> -- >> >> Clemens Backes >> >> Software Engineer >> >> clem...@google.com >> >> Google Germany GmbH >> >> Erika-Mann-Straße 33 >> >> 80636 München >> >> Geschäftsführer: Paul Manicle, Liana Sebastian >> >> Registergericht und -nummer: Hamburg, HRB 86891 >> >> Sitz der Gesellschaft: Hamburg >> >> Diese E-Mail ist vertraulich. Falls sie diese fälschlicherweise erhalten >> haben sollten, leiten Sie diese bitte nicht an jemand anderes weiter, >> löschen Sie alle Kopien und Anhänge davon und lassen Sie mich bitte wissen, >> dass die E-Mail an die falsche Person gesendet wurde. >> >> >> This e-mail is confidential. If you received this communication by >> mistake, please don't forward it to anyone else, please erase all copies >> and attachments, and please let me know that it has gone to the wrong >> person. >> >> >> -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-users/560011c4-d752-4244-a5b6-fc29562a443en%40googlegroups.com.
