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Date: Mon, 17 Nov 2014 15:11:23 +0100
From: Szabolcs Nagy <>
To: Catalin Marinas <>
Cc: Russell King - ARM Linux <>,
	Rich Felker <>,
	"" <>,
	Kees Cook <>,
	"" <>,
	Andy Lutomirski <>
Subject: Re: ARM atomics overhaul for musl

* Catalin Marinas <> [2014-11-17 13:54:13 +0000]:
> ARM11MPCore). ARM is trying to move away from architecture version
> numbers, which are rather useful for marketing, to proper feature
> detection based on CPUID. Whether there is an ARMv9 or not, it's
> irrelevant to what Linux should do (i.e. use CPUID rather than guess
> features based on architecture version numbers).

how to use cpuid from userspace?

should linux export those bits into hwcap?

(i assume all relevant info will be available in /proc/cpuinfo but
that does not work for libc)

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