RFR: 8264412: AArch64: CPU description should refer DMI [v5]

[Yasumasa Suenaga]

On Tue, 30 Mar 2021 16:20:40 GMT, Andrew Haley <aph at openjdk.org> wrote:

>> Yasumasa Suenaga has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Update conditions
>
> This patch is basically OK, except the question about a somewhat obscure bit of code.

> > @theRealAph The latest change uses `strncmp(buf, "\n", 2)` to check whether the content just has "\n". Are you ok this change?
> 
> No, that's obviously wrong. "\n" is only one character, so it makes no sense
> to use strncmp(). Please check for a file containing just "\n", which is
> 
> (read_sz == 1 && *buf == '\n')

I pushed new commit. @theRealAph Could you review again?

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PR: https://git.openjdk.java.net/jdk/pull/3259