Re: [PATCH v2] uapi/auxvec: Define AT_HWCAP3 and AT_HWCAP4 aux vector, entries

On Wed, 14 Feb 2024 16:34:06 -0600, Peter Bergner wrote:

Changes from v1:
- Add Acked-by lines.

The powerpc toolchain keeps a copy of the HWCAP bit masks in our TCB for fast
access by the __builtin_cpu_supports built-in function.  The TCB space for
the HWCAP entries - which are created in pairs - is an ABI extension, so
waiting to create the space for HWCAP3 and HWCAP4 until we need them is
problematical.  Define AT_HWCAP3 and AT_HWCAP4 in the generic uapi header
so they can be used in glibc to reserve space in the powerpc TCB for their
future use.

[...]

Applied to powerpc/next.

[1/1] uapi/auxvec: Define AT_HWCAP3 and AT_HWCAP4 aux vector, entries
      https://git.kernel.org/powerpc/c/3281366a8e79a512956382885091565db1036b64

cheers