[Bug libc/20305] x86: MINSIGSTKSZ too small for AVX-512F support

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=20305

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|MOVED                       |---
   Target Milestone|---                         |2.33

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
MINSIGSTKSZ is defined in <bits/sigstack.h>.  Changing it in the kernel
doesn't help.  However, for AT_MINSIGSTKSZ kernel, we can do

extern int getminsigstacksize (void);

#ifdef __USE_GNU
/* Minumum stack size for a signal handler.  */
# undef MINSIGSTKSZ
# define MINSIGSTKSZ (getminsigstacksize ())
#endif

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