[Bug dynamic-link/27061] Incorrect values in __x86_rep_movsb_threshold

hjl.tools at gmail dot com sourceware-bugzilla@sourceware.org
Sun Dec 13 15:26:06 GMT 2020


https://sourceware.org/bugzilla/show_bug.cgi?id=27061

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Florian Weimer from comment #2)
> How do you run the test program?
> 
> One effect of putting CPU feature data (whose size changes frequently) is
> sensitivity to the internal GLIBC_PRIVATE ABI.

My program is linked against the newly built glibc:

[hjl@gnu-cfl-2 movsb-1]$ ldd test-dynamic 
        linux-vdso.so.1 (0x00007fff9f3ef000)
        libpthread.so.0 =>
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/nptl/libpthread.so.0
(0x00007efe0312b000)
        libc.so.6 =>
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/libc.so.6
(0x00007efe02f65000)
       
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/elf/ld-linux-x86-64.so.2
=> /lib64/ld-linux-x86-64.so.2 (0x00007efe0314e000)
[hjl@gnu-cfl-2 movsb-1]$ 

I have full access to glibc debug info.

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