[PATCH v2 1/4] riscv: Add multiarch scaffolding for str*/mem* routines

[Yao Zihong]

> So I think you need a dl-symbol-redir-ifunc file to handle static
> initialization.   Otherwise you can get an infinite loop during symbol
> resolution.  The testsuite will trip this issue which raises the
> question, how was this tested? I would expect to see a few tests hang.

At least memset triggers a hang in elf/tst-tls1-static-non-pie.
My earlier testing focused on the string routines and didn’t include the elf
subsuite, so I missed this case. My bad.

> As I mentioned in the V1 patch, this probably should be using the same
> mechansisms as ifunc-impl-list rather than querying out of hwcaps.  That
> was also the consensus at the RISC-V BOF last week -- don't use hwcaps
> use the probing interface.

Good to know, thanks for the clarification.
The next version will switch to using hwprobe as suggested.

Thanks,
Zihong