[issue17580] ctypes: ARM hardfloat argument corruption calling functions with many float arguments

[STINNER Victor]

STINNER Victor added the comment:

David Schneider: "A patch for this issue has been accepted into libffi."

fijal: "Can you please commit the upstream fix that has been committed 3 years ago (...)"

Which patch? Attached tar archive doesn't look like a patch and I see no reference to a fix.

Previous libffi upgrade:
---
changeset:   92061:4331fa01398e
branch:      2.7
parent:      92058:928135d0fa7d
user:        doko at ubuntu.com
date:        Sun Aug 10 11:15:28 2014 +0200
files:       Misc/NEWS Modules/_ctypes/libffi.diff Modules/_ctypes/libffi/.gitignore Modules/_ctypes/libffi/.travis.yml Modules/_ctypes/libffi/ChangeLog Modules/_ctypes/libffi/Change
description:
- Issue #22176: Update the ctypes module's libffi to v3.1.  This release
  adds support for the Linux AArch64 and POWERPC ELF ABIv2 little endian
  architectures.
---

This upgrade was made in august 2014, this issue was reported in march 2013. The upgrade didn't add the mentioned fix?

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<http://bugs.python.org/issue17580>
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