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GLIBC patch accepted: Add HWCAP bits to the TCB on Power

In order to get faster access to the HWCAP/HWCAP2 bits and platform number without the overhead of reading from the auxiliary vector, we now reserve space for them in the Thread Control Block (TCB). This is a TLS ABI change for GLIBC 2.23 added by commit 67385a0. New __builtin_cpu_is() / __builtin_cpu_supports() functions in GCC will be available (probably) in the next release, providing similar functionality to IntelContinue readingGLIBC patch accepted: Add HWCAP bits to the TCB on Power