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* Replace _Py_ALIGN_AS(V) by _Py_ALIGNED_DEF(N, T) This is now a common façade for the various `_Alignas` alternatives, which behave in interesting ways -- see the source comment. The new macro (and MSVC's `__declspec(align)`) should not be used on a variable/member declaration that includes a struct declaraton. A workaround is to separate the struct definition. Do that for `PyASCIIObject.state`. * Specify minimum PyGC_Head and PyObject alignment As documented in InternalDocs/garbage_collector.md, the garbage collector stores flags in the least significant two bits of the _gc_prev pointer in struct PyGC_Head. Consequently, this pointer is only capable of storing a location that's aligned to a 4-byte boundary. Encode this requirement using _Py_ALIGNED_DEF. This patch fixes a segfault in m68k, which was previously investigated by Adrian Glaubitz here: https://lists.debian.org/debian-68k/2024/11/msg00020.html https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1087600 Original patch (using the GCC-only Py_ALIGNED) by Finn Thain. Co-authored-by: Finn Thain <fthain@linux-m68k.org> Co-authored-by: Victor Stinner <vstinner@python.org> Co-authored-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> |
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| .. | ||
| cpython | ||
| internal | ||
| abstract.h | ||
| audit.h | ||
| bltinmodule.h | ||
| boolobject.h | ||
| bytearrayobject.h | ||
| bytesobject.h | ||
| ceval.h | ||
| codecs.h | ||
| compile.h | ||
| complexobject.h | ||
| critical_section.h | ||
| datetime.h | ||
| descrobject.h | ||
| dictobject.h | ||
| dynamic_annotations.h | ||
| enumobject.h | ||
| errcode.h | ||
| exports.h | ||
| fileobject.h | ||
| fileutils.h | ||
| floatobject.h | ||
| frameobject.h | ||
| genericaliasobject.h | ||
| import.h | ||
| intrcheck.h | ||
| iterobject.h | ||
| listobject.h | ||
| lock.h | ||
| longobject.h | ||
| marshal.h | ||
| memoryobject.h | ||
| methodobject.h | ||
| modsupport.h | ||
| moduleobject.h | ||
| monitoring.h | ||
| object.h | ||
| objimpl.h | ||
| opcode.h | ||
| opcode_ids.h | ||
| osdefs.h | ||
| osmodule.h | ||
| patchlevel.h | ||
| py_curses.h | ||
| pyatomic.h | ||
| pybuffer.h | ||
| pycapsule.h | ||
| pydtrace.d | ||
| pydtrace.h | ||
| pyerrors.h | ||
| pyexpat.h | ||
| pyframe.h | ||
| pyhash.h | ||
| pylifecycle.h | ||
| pymacconfig.h | ||
| pymacro.h | ||
| pymath.h | ||
| pymem.h | ||
| pyport.h | ||
| pystate.h | ||
| pystats.h | ||
| pystrcmp.h | ||
| pystrtod.h | ||
| Python.h | ||
| pythonrun.h | ||
| pythread.h | ||
| pytypedefs.h | ||
| rangeobject.h | ||
| README.rst | ||
| refcount.h | ||
| setobject.h | ||
| sliceobject.h | ||
| structmember.h | ||
| structseq.h | ||
| sysmodule.h | ||
| traceback.h | ||
| tupleobject.h | ||
| typeslots.h | ||
| unicodeobject.h | ||
| warnings.h | ||
| weakrefobject.h | ||
The Python C API ================ The C API is divided into these sections: 1. ``Include/``: Limited API 2. ``Include/cpython/``: CPython implementation details 3. ``Include/cpython/``, names with the ``PyUnstable_`` prefix: API that can change between minor releases 4. ``Include/internal/``, and any name with ``_`` prefix: The internal API Information on changing the C API is available `in the developer guide`_ .. _in the developer guide: https://devguide.python.org/c-api/