[Bug 253335] emulators/qemu-user-static php segfault building devel/pear for armv7

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253335

--- Comment #16 from commit-hook at FreeBSD.org ---
A commit references this bug:

Author: kevans
Date: Fri Feb 26 04:53:22 UTC 2021
New revision: 566578
URL: https://svnweb.freebsd.org/changeset/ports/566578

Log:
  emulators/qemu-user-static: update to f7fd10d7677c

  This features a number of fixes; highlights:
  - Handle aarch64 YIELD instructions
  - Bump ARG_MAX to match the FreeBSD default on LP64 platforms
  - Implement __specialfd(2) and copy_file_range(2)
  - Style fixes
  - Fix an issue with binary execution[0]
  - Fix page fault handling for self-modifying binaries[1]
  - Suppress noise from CIOGSESSION usage and restore CRIOGET handling
  - Patch _umtx_op(2) through to the kernel where possible[2]

  [0] Attempting to execute a binary by name was broken when there was an
  unrelated entry by the same name in PWD.  The report below observed it in the
  cluster while building games/dobutsu, which tried to execute `xz` in a
directory
  that had an `xz` directory inside of it.

  [1] From the fixing commit, qemu mprotect()s pages contained translated code
  to PROT_READ | PROT_EXEC and upgrades protections as needed upon page fault.
  This was broken in a previous commit that misidentified by the trap # that
  should have been observed.  The observed issue a broken JIT compiler in
  libpcre.

  [2] _umtx_op can now be handled by the kernel in cases where the target long
  size is not longer than the host, and the target and host are the same
  endianness.  This is much more reliable than our previous emulation of these
  operations, and should reduce hangs sometimes observed in threaded
applications.
  Note that this requires a recent stable/12 or 13.x/-CURRENT.

  PR:           253375 [0]
  PR:           253335 [1]
  MFH:          2021Q1

Changes:
  head/emulators/qemu-user-static/Makefile
  head/emulators/qemu-user-static/distinfo

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