[stabbles]

Seems like this is not using glibc's hwcaps (where shared libraries were located in microarch specific subdirs).

To me hwcaps feels like a very unfortunate feature creep of glibc now. I don't see why it was ever added, given that it's hard to compile only shared libraries for a specific microarch, and it does not benefit executables. Distros seem to avoid it. All it does is causing unnecessary stat calls when running an executable.

[mwhudson]

No it's not using hwcaps. That would only allow optimization of code in shared libraries, would be irritating to implement in a way that didn't require touching each package that includes shared libraries and would (depending on details) waste a bunch of space on every users system. I think hwcaps would only make sense for a small number of shared libraries if at all, not a system wide thing.