rust/library/panic_unwind/src/dummy.rs
Alex Crichton 7f3ffbc8c2 std: Get the standard library compiling for wasm64
This commit goes through and updates various `#[cfg]` as appropriate to
get the wasm64-unknown-unknown target behaving similarly to the
wasm32-unknown-unknown target. Most of this is just updating various
conditions for `target_arch = "wasm32"` to also account for `target_arch
= "wasm64"` where appropriate. This commit also lists `wasm64` as an
allow-listed architecture to not have the `restricted_std` feature
enabled, enabling experimentation with `-Z build-std` externally.

The main goal of this commit is to enable playing around with
`wasm64-unknown-unknown` externally via `-Z build-std` in a way that's
similar to the `wasm32-unknown-unknown` target. These targets are
effectively the same and only differ in their pointer size, but wasm64
is much newer and has much less ecosystem/library support so it'll still
take time to get wasm64 fully-fledged.
2021-11-10 08:35:42 -08:00

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361 B
Rust

//! Unwinding for unsupported target.
//!
//! Stubs that simply abort for targets that don't support unwinding otherwise.
use alloc::boxed::Box;
use core::any::Any;
use core::intrinsics;
pub unsafe fn cleanup(_ptr: *mut u8) -> Box<dyn Any + Send> {
intrinsics::abort()
}
pub unsafe fn panic(_data: Box<dyn Any + Send>) -> u32 {
intrinsics::abort()
}