rust-lang
Stdarch support for `wasm32-wali-linux-musl` Tier-3 Linux target
To support the new Tier-3 target wasm32-wali-linux-musl within the rust compiler : rust-lang/rust#135651
Minimally, this just disables dynamic-linking related Linux features which is not supported yet in Wasm.
Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @Amanieu (or someone else) some time within the next two weeks.
Is there a reason wali doesn't provide getauxvval?
Wasm doesn't have a dynamic linking specification yet. These features can be added back in the future once supported
Directly linking to getauxval rather than using dlsym should work if libc for wali is guaranteed to support it, right? The only reason std_detect is using dlsym is because older libc versions for some targets don't support getauxval.
That's true, we could probably just disable std_detect_dlsym_getauxval when building stdarch for rustc. That should work right?
WALI libc does expose getauxval but support for it is not fully specified/handled yet (particularly architecture-specific types/values) As such, preventing it from being called for the time being is preferable.