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bpo-46968: Fix faulthandler for Sapphire Rapids Xeon (GH-31789)

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In Linux kernel 5.14 one can dynamically request size of altstacksize
based on hardware capabilities with getauxval(AT_MINSIGSTKSZ).

This changes allows for Python extension's request to Linux kernel
to use AMX_TILE instruction set on Sapphire Rapids Xeon processor
to succeed, unblocking use of the ISA in frameworks.

Introduced HAVE_LINUX_AUXVEC_H in configure.ac and pyconfig.h.in
Used cpython_autoconf:269 docker container to generate configure.
This commit is contained in:
Oleksandr Pavlyk 2022-03-11 16:19:35 -06:00 • committed by GitHub
parent dc374ac7b0
commit 3b128c0548
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5 changed files with 30 additions and 8 deletions
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3
pyconfig.h.in
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@ -661,6 +661,9 @@
/* Define to 1 if you have the `linkat' function. */
#undef HAVE_LINKAT
/* Define to 1 if you have the <linux/auxvec.h> header file. */
#undef HAVE_LINUX_AUXVEC_H
/* Define to 1 if you have the <linux/can/bcm.h> header file. */
#undef HAVE_LINUX_CAN_BCM_H