Does Rust allow calling a function with a new stack?

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#1

This is perhaps a silly question, but does Rust have a macro (I am guessing it needs to be a macro) to call a function with a different stack?
I am looking for something similar to the @call builtin from Zig, where we can simply pass a pointer a new stack.
Admittedly, this macro will require unsafe to run, but that is fine by me.

#2
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#3

Any idea if these are usable in a WASM module?

#4

Unfortunately not. Per psm's README.md:

This library is not applicable to the target. WASM hasn’t a specified C ABI, the callstack is not even in an address space and does not appear to be manipulatable.

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