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Re: [PATCH 0/2] Multiarch hooks for memcpy variants
On Friday 11 August 2017 11:36 PM, Zack Weinberg wrote:
>> may be the generic __memcpy_chk should call the ifunced
>> memcpy so it goes through an extra plt indirection, but
>> at least less target specific code is needed.
> I was thinking of making this suggestion myself. I think that would
> be a better maintainability/efficiency tradeoff. (Of course, I also
> think we shouldn't bypass ifuncs for intra-libc calls.)
That was my initial approach, but I was under the impression that PLTs
in internal calls were frowned upon, hence the ifuncs similar to what's
done in x86. If this is acceptable, I could do more tests to check
gains within the library if we were to call memcpy via ifunc.