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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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configure generated vendored
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@ -8652,7 +8652,7 @@ $as_echo "#define STDC_HEADERS 1" >>confdefs.h
# checks for header files
for ac_header in \
alloca.h asm/types.h bluetooth.h conio.h crypt.h direct.h dlfcn.h endian.h errno.h fcntl.h grp.h \
ieeefp.h io.h langinfo.h libintl.h libutil.h linux/memfd.h linux/random.h linux/soundcard.h \
ieeefp.h io.h langinfo.h libintl.h libutil.h linux/auxvec.h linux/memfd.h linux/random.h linux/soundcard.h \
linux/tipc.h linux/wait.h netinet/in.h netpacket/packet.h poll.h process.h pthread.h pty.h \
sched.h setjmp.h shadow.h signal.h spawn.h stropts.h sys/audioio.h sys/bsdtty.h sys/devpoll.h \
sys/endian.h sys/epoll.h sys/event.h sys/eventfd.h sys/file.h sys/ioctl.h sys/kern_control.h \