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std: Get the standard library compiling for wasm64

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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.
This commit is contained in:
Alex Crichton 2021-10-28 10:58:16 -07:00
parent 68ca579406
commit 7f3ffbc8c2
13 changed files with 41 additions and 22 deletions
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5
library/std/src/thread/mod.rs
View file

@ -200,7 +200,10 @@ pub use self::local::fast::Key as __FastLocalKeyInner;
#[doc(hidden)]
pub use self::local::os::Key as __OsLocalKeyInner;
#[unstable(feature = "libstd_thread_internals", issue = "none")]
#[cfg(all(target_arch = "wasm32", not(target_feature = "atomics")))]
#[cfg(all(
any(target_arch = "wasm32", target_arch = "wasm64"),
not(target_feature = "atomics")
))]
#[doc(hidden)]
pub use self::local::statik::Key as __StaticLocalKeyInner;