New submission from David Schneider: This issue affects C functions with many float/double arguments called through ctypes on ARM using the hardfloat ABI (i.e. the standard distribution for the raspberry pi uses hard-float).
Calling a C function using ctypes on ARM hard-float that takes a large number of float arguments (more than 16 floats or more than 8 doubles) corrupts the first float/double arguments passed on the stack to the called function. To check the issue run the following commands on an ARM hard-float system: make python bug.py A patch for this issue has been accepted into libffi. ---------- components: ctypes files: ctypes_arm.tar messages: 185557 nosy: bivab priority: normal severity: normal status: open title: ctypes: ARM hardfloat argument corruption calling functions with many float arguments type: behavior versions: Python 2.7, Python 3.2 Added file: http://bugs.python.org/file29613/ctypes_arm.tar _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue17580> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
