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Re: [PATCH] x86-64: Implement strcpy family IFUNC selectors in C
On Sun, Jun 11, 2017 at 11:22 AM, Florian Weimer
> On 06/11/2017 03:50 PM, H.J. Lu wrote:
>> All internal calls within libc.so can use IFUNC on x86-64 since unlike
>> x86, x86-64 doesn't need to reserve a register to make a PLT call.
> Shouldn't this rather say, “because, unlike x86, x86-64 supports PC-relative
> addressing to access the GOT entry”? That's probably the root cause of the
Both are true. The end result is there is no extra needed for call
> performance difference.