[compiler-rt][builtins] Define AT_HWCAP2 for AArch64
authorXi Ruoyao <xry111@xry111.site>
Wed, 8 Mar 2023 15:26:57 +0000 (16:26 +0100)
committerNikita Popov <nikita.ppv@gmail.com>
Wed, 8 Mar 2023 15:26:57 +0000 (16:26 +0100)
commit23fcca822a3a3b9a14b6a1ad432814e2634cdb63
tree18339bc04adfbcb34c0e00964a7e1c3ab2950a22
parentcc6b86e175da1cf4fa7de98ee99bb9e55e16ac7d
[compiler-rt][builtins] Define AT_HWCAP2 for AArch64

Without the definition, build fails on AArch64 with

> error: 'AT_HWCAP2' undeclared (first use in this function);
> did you mean 'AT_HWCAP'?

with old Glibc versions.

Differential Revision: https://reviews.llvm.org/D145494
compiler-rt/lib/builtins/cpu_model.c