This bug was fixed in the package libffi - 3.1~rc1+r3.0.13-12ubuntu0.1
---------------
libffi (3.1~rc1+r3.0.13-12ubuntu0.1) trusty; urgency=medium
* Fix an AArch64 issue, taken from upstream:
For any 1-16 byte structure not passed in registers, we weren't copying
from the object to be passed, but from the array of objects.
(LP: #1513958)
-- dann frazier <[email protected]> Fri, 06 Nov 2015 13:33:54 -0700
** Changed in: libffi (Ubuntu Trusty)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1513958
Title:
arm64: failure with small objects passed on stack
Status in libffi package in Ubuntu:
Fix Released
Status in libffi source package in Trusty:
Fix Released
Bug description:
[Impact]
It isn't possible to build newer versions of python-cffi on trusty/arm64
because it's test cases will fail due to this bug. The thing that's biting me
is that cloud-archive:liberty is incomplete on arm64, making key packages
uninstallable on arm64 (e.g. nova-compute).
Additionally, libffi is used by several languages in Ubuntu (python,
ruby, haskell, etc), so this may also be causing issues in the closed
set of Ubuntu/trusty packages. I don't have evidence either way.
[TestCase]
Build python-cffi_1.1.2-1ubuntu2 from wily on trusty/arm64. With unfixed
libffi, the build will fail during dh_auto_test in the
"TestFFI.test_struct_by_value" test case.
[Regression Risk]
The fix is in the aarch64-specific code, so there's a negligible risk of
regression on other platforms. This exact fix was included in vivid and wily
and no regressions have been triaged to libffi in those releases.
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