[PATCH] D81689: [WebAssembly] New-style command support

[YAMAMOTO Takashi via Phabricator via llvm-commits]

yamt added a comment.

In D81689#3621510 <https://reviews.llvm.org/D81689#3621510>, @sbc100 wrote:

> IIUC, with commands you can call back into the module, but only while the command entry point (`_start`) is running.  i.e. while `_start` is running it can call out, and you can callback in as much as you want.
>
> Once `_start` returns the instance is no longer in a valid state and can no longer called into (for example it would not be valid to call `malloc` after `_start` returns since the heap data structures may have been torn down).
>
> If you want to call into a module after `_start` returns (and have the state preserved between calls) then what you want is a reactor and you should use `_initialize` rather than `_start`.

sure.
but i'm not sure how it's related to this change.


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  https://reviews.llvm.org/D81689/new/

https://reviews.llvm.org/D81689