[libc-commits] [clang] [libc] [libc] Support opaque FILE* on baremetal (PR #168931)

[Petr Hosek via libc-commits]

petrhosek wrote:

> IIUC this is an interim change, not necessarily a step towards the 3 tier model described in https://discourse.llvm.org/t/rfc-implementation-of-stdio-on-baremetal/86944
> 
> In that assumed context, this looks good to me too. Looks like it will help with building libc++.

We already discussed this in the Embedded Toolchains WG, but for posterity this change effectively combines tier 1 and 2, we plan to tackle tier 3 in follow up changes.

https://github.com/llvm/llvm-project/pull/168931