Reading issue
rust-lang / rust · Issue No. 160561
We recently added support for rust on powerpc64le and we want mma vsx hard-float and altivec disabled.
We did that but it's throwing warning
warning: unknown and unstable feature specified for `-Ctarget-feature`: `mma`
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= note: it is still passed through to the codegen backend, but use of this feature might be unsound and the behavior of this feature can change in the future
= help: consider filing a feature request
warning: unstable feature specified for `-Ctarget-feature`: `vsx`
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= note: this feature is not stably supported; its behavior can change in the future
warning: unknown and unstable feature specified for `-Ctarget-feature`: `hard-float`
|
= note: it is still passed through to the codegen backend, but use of this feature might be unsound and the behavior of this feature can change in the future
= help: consider filing a feature request
warning: unstable feature specified for `-Ctarget-feature`: `altivec`
|
= note: this feature is not stably supported; its behavior can change in the future
I tried this with latest linux next with rust for linux on powerpc64le support. Here's a link to the patch series.
https://lore.kernel.org/all/20260708082454.1254320-1-mkchauras@gmail.com/
rustc --version --verbose:
rustc 1.96.1 (31fca3adb 2026-06-26)
binary: rustc
commit-hash: 31fca3adb283cc9dfd56b49cdee9a96eb9c96ffd
commit-date: 2026-06-26
host: x86_64-unknown-linux-gnu
release: 1.96.1
LLVM version: 22.1.2
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