V5 [PATCH 2/2] ldconfig/x86: Add ISA level check to glibc-hwcaps

H.J. Lu hjl.tools@gmail.com
Tue Dec 8 13:25:20 GMT 2020


On Mon, Dec 7, 2020 at 2:00 AM Florian Weimer <fweimer@redhat.com> wrote:
>
> * H. J. Lu via Libc-alpha:
>
> > Add ISA level check to detect misplaced shared objects with incompatible
> > ISA level requirement in glibc-hwcaps subdirectories:
> >
> > /sbin/ldconfig: /usr/lib64/glibc-hwcaps/x86-64-v2/libx86-64-isa-level.so: skipped, ISA level mismatch (x86-64-v4 > x86-64-v2)
>
> I think this is conceptually the wrong approach.  ldconfig should copy
> the notes into the cache (and aux cache), and ld.so should skip cache
> contents that doesn't match the run-time requirements during load.  Then
> directory place does not matter that much anymore.
>

Do we have space in cache for it?

-- 
H.J.


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