[Bug dynamic-link/32810] Immediate crash on x86-64 when running with GLIBC_TUNABLES=glibc.cpu.hwcaps=-XSAVEC

[skpgkp2 at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=32810

--- Comment #7 from Sunil Pandey <skpgkp2 at gmail dot com> ---
(In reply to Florian Weimer from comment #2)
> With
> 
> commit 9b7091415af47082664717210ac49d51551456ab
> Author: H.J. Lu <hjl.tools@gmail.com>
> Date:   Wed Feb 28 12:08:03 2024 -0800
> 
>     x86-64: Update _dl_tlsdesc_dynamic to preserve AMX registers
> 
> we have
> 
> x86.cpu_features.xsave_state_full_size=0xb00
> 
> in ld.so --list-diagnostics output.  Before, it was
> 
> x86.cpu_features.xsave_state_full_size=0x3c0
> 
> and this commit does not change size requirements for XSAVE trampolines, so
> this is not good.
> 
> Sunil, would you please have a look?

Sure. Can you please provide small standalone test case?

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