Cross-compiling to s390x musl is missing __rdl_alloc when codegen-units-std is not set to 1

[jyn514]

I do not have the time or hardware to replicate this. The original error came up in zulip: https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/bootstrapping.20on.20s390x.2Fmips.20for.20musl/near/227436553

cc @Mark-Simulacrum @kaniini @nagisa

[kaniini]

This is because of musl actually. It’s because libc needed to be adapted for musl s390x i believe.

[jyn514]

This is because of musl actually. It’s because libc needed to be adapted for musl s390x i believe.

Does that mean you can replicate this on x86_64-musl? What changes does libc need?

[kaniini]

The libc crate did not have definitions for musl on s390x. I think the latest libc crate will be fine. And yes, it is reproducible when building a cross compiler.

[jyn514]

The libc crate did not have definitions for musl on s390x. I think the latest libc crate will be fine. And yes, it is reproducible when building a cross compiler.

I think this is fixed then? Or at least, this issue isn't tracking anything useful.