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Miss Islington (bot) 331b4b868c [3.14] gh-140815: Fix faulthandler for invalid/freed frame (GH-140921) (#140981) 
gh-140815: Fix faulthandler for invalid/freed frame (GH-140921)

faulthandler now detects if a frame or a code object is invalid or
freed.

Add helper functions:

* _PyCode_SafeAddr2Line()
* _PyFrame_SafeGetCode()
* _PyFrame_SafeGetLasti()

_PyMem_IsPtrFreed() now detects pointers in [-0xff, 0xff] range
as freed.
(cherry picked from commit a84181c31b)

Co-authored-by: Victor Stinner <vstinner@python.org>
2025-11-04 11:18:23 +00:00
..
cpython
[3.14] gh-139640: Fix swallowing syntax warnings in different modules (GH-139755) (GH-140117)
2025-10-14 15:56:01 +00:00
internal
[3.14] gh-140815: Fix faulthandler for invalid/freed frame (GH-140921) (#140981)
2025-11-04 11:18:23 +00:00
abstract.h
[3.14] gh-134989: Implement PyObject_DelAttr() as a macro in the limited C API (GH-135021) (#135133)
2025-06-04 13:33:20 +00:00
audit.h
[3.14] gh-135755: Use private names (_Py*) for header file guards new in 3.14 (GH-135921) (GH-135976)
2025-07-01 12:37:02 +02:00
bltinmodule.h
…
boolobject.h
[3.14] gh-134989: Fix Py_RETURN_NONE in the limited C API (GH-135165) (#135178)
2025-06-05 15:35:54 +02:00
bytearrayobject.h
gh-87347: Add parenthesis around PyXXX_Check() arguments (#92815)
2022-06-16 13:49:43 +02:00
bytesobject.h
gh-108765: Move standard includes to Python.h (#108769)
2023-09-01 21:03:20 +02:00
ceval.h
[3.14] gh-135755: Move SPECIAL_ constants to a private header (GH-135922) (GH-135926)
2025-06-25 13:36:46 +02:00
codecs.h
Remove private _PyCodec_Lookup() function (#106269)
2023-06-30 09:34:01 +00:00
compile.h
gh-109596: Ensure repeated rules in the grammar are not allowed and fix incorrect soft keywords (#109606)
2023-09-22 19:03:23 +01:00
complexobject.h
gh-87347: Add parenthesis around PyXXX_Check() arguments (#92815)
2022-06-16 13:49:43 +02:00
critical_section.h
gh-119344: Make critical section API public (#119353)
2024-06-21 15:50:18 -04:00
datetime.h
gh-87347: Add parenthesis around macro arguments (#93915)
2022-06-20 16:04:52 +02:00
descrobject.h
gh-103509: PEP 697 -- Limited C API for Extending Opaque Types (GH-103511)
2023-05-04 09:56:53 +02:00
dictobject.h
gh-106004: PyDict_GetItemRef() should only be in the limited API 3.13 (GH-107229)
2023-07-25 21:48:07 +03:00
dynamic_annotations.h
gh-96959: Update HTTP links which are redirected to HTTPS (GH-96961)
2022-09-24 14:38:53 +03:00
enumobject.h
…
errcode.h
gh-107450: Check for overflow in the tokenizer and fix overflow test (#110832)
2023-10-16 16:42:49 +02:00
exports.h
gh-121040: Use __attribute__((fallthrough)) (#121044)
2024-06-27 09:58:44 +00:00
fileobject.h
gh-106320: Remove _PyIsSelectable_fd() C API (#107142)
2023-07-23 19:07:12 +00:00
fileutils.h
gh-108765: Move stat() fiddling from pyport.h to fileutils.h (#108854)
2023-09-03 21:32:13 +00:00
floatobject.h
gh-120026: soft deprecate Py_HUGE_VAL macro (#120027)
2024-11-01 22:04:31 +00:00
frameobject.h
bpo-45434: Remove useless space in includes (GH-28963)
2021-10-15 01:50:04 +02:00
genericaliasobject.h
bpo-44654: Refactor and clean up the union type implementation (GH-27196)
2021-07-17 22:44:10 +03:00
import.h
gh-105922: Add PyImport_AddModuleRef() function (#105923)
2023-06-20 08:48:14 +02:00
intrcheck.h
gh-106320: Remove private _PyOS_IsMainThread() function (#108605)
2023-08-29 03:20:31 +00:00
iterobject.h
gh-106320: Remove _PyAnextAwaitable_Type from the public C API (#108597)
2023-08-29 02:05:11 +00:00
listobject.h
gh-114329: Fix PyList_GetItemRef() limited C API definition (#117520)
2024-04-03 21:02:42 +00:00
lock.h
gh-117511: Make PyMutex public in the non-limited API (#117731)
2024-06-20 11:29:08 -04:00
longobject.h
gh-132639: Adds PyLong_AsNativeBytes, PyLong_FromNativeBytes and PyLong_FromUnsignedNativeBytes to the limited API (GH-132640)
2025-04-21 15:59:03 +01:00
marshal.h
gh-125063: marshal: Add version 5, improve documentation (GH-126829)
2024-11-15 13:48:57 +01:00
memoryobject.h
gh-79315: Add Include/cpython/memoryobject.h header (#99723)
2022-11-23 15:44:42 +01:00
methodobject.h
gh-132097: use a macro for semantically casting function pointers (#132406)
2025-04-18 12:24:34 +02:00
modsupport.h
gh-112136: Restore removed _PyArg_Parser (#121262)
2024-07-03 18:36:57 +02:00
moduleobject.h
gh-116322: Rename PyModule_ExperimentalSetGIL to PyUnstable_Module_SetGIL (GH-118645)
2024-05-06 18:59:36 +02:00
monitoring.h
gh-111997: C-API for signalling monitoring events (#116413)
2024-05-04 08:23:50 +00:00
object.h
[3.14] gh-140487: Fix Py_RETURN_NOTIMPLEMENTED in limited C API 3.11 (GH-140636) (#140668)
2025-10-27 14:15:49 +01:00
objimpl.h
gh-102013: Move PyUnstable_GC_VisitObjects() to Include/cpython/objimpl.h (#115560)
2024-02-16 15:49:13 +01:00
opcode_ids.h
gh-100239: specialize BINARY_OP/SUBSCR for list-slice (#132626)
2025-05-01 10:28:52 +00:00
opcode.h
gh-100239: replace BINARY_SUBSCR & family by BINARY_OP with oparg NB_SUBSCR (#129700)
2025-02-07 22:39:54 +00:00
osdefs.h
gh-108765: Reformat Include/osdefs.h (#108766)
2023-09-01 14:35:39 +00:00
osmodule.h
Issue #29058: All stable API extensions added after Python 3.2 are now
2016-12-27 14:57:39 +02:00
patchlevel.h
Post 3.14.0
2025-10-07 17:15:20 +03:00
py_curses.h
bpo-44172: Keep reference to original window in curses subwindow objects (GH-26226)
2025-05-04 13:29:44 +03:00
pyatomic.h
gh-108724: Add PyMutex and _PyParkingLot APIs (gh-109344)
2023-09-19 09:54:29 -06:00
pybuffer.h
gh-102500: Implement PEP 688 (#102521)
2023-05-04 07:59:46 -07:00
pycapsule.h
gh-108240: Add pycore_capsule.h internal header file (#108596)
2023-08-29 01:20:02 +00:00
pydtrace.d
bpo-36842: Implement PEP 578 (GH-12613)
2019-05-23 08:45:22 -07:00
pydtrace.h
Fix pydtrace.d path comment in Include/pydtrace.h (#28539)
2022-12-31 22:40:25 +05:30
pyerrors.h
gh-119521: Rename IncompleteInputError to _IncompleteInputError and remove from public API/ABI (GH-119680)
2024-06-24 14:08:12 +02:00
pyexpat.h
[3.14] gh-90949: add Expat API to prevent XML deadly allocations (CVE-2025-59375) (GH-139234) (#139359)
2025-11-02 09:33:36 +00:00
pyframe.h
gh-93937, C API: Move PyFrame_GetBack() to Python.h (#93938)
2022-06-19 12:02:33 +02:00
pyhash.h
gh-111545: Add Include/cpython/pyhash.h header file (#112063)
2023-11-15 01:19:20 +01:00
pylifecycle.h
gh-117987: Restore several functions removed in Python 3.13 alpha 1 (GH-117993)
2024-04-18 15:20:38 +02:00
pymacconfig.h
gh-110820: Make sure processor specific defines are correct for Universal 2 build on macOS (#112828)
2023-12-08 10:09:34 +01:00
pymacro.h
gh-128972: Add _Py_ALIGN_AS and revert PyASCIIObject memory layout. (GH-133085)
2025-05-02 18:30:40 +02:00
pymath.h
gh-120026: soft deprecate Py_HUGE_VAL macro (#120027)
2024-11-01 22:04:31 +00:00
pymem.h
gh-85283: Add PyMem_RawMalloc() to the limited C API (#108570)
2023-10-17 02:41:51 +02:00
pyport.h
[3.14] gh-137058: Sync _Py_NULL macro with the main branch (#137409)
2025-10-07 18:41:45 +02:00
pystate.h
gh-108867: Add PyThreadState_GetUnchecked() function (#108870)
2023-10-03 16:53:51 +00:00
pystats.h
GH-124284: Add stats for refcount operations on immortal objects (GH-124288)
2024-09-23 19:10:55 +01:00
pystrcmp.h
…
pystrtod.h
gh-106320: Remove private float C API functions (#108430)
2023-08-24 19:09:49 +02:00
Python.h
[3.14] gh-136823: Update documentation on excluded headers in Python.h (GH-136824) (#137437)
2025-10-07 23:23:33 +05:30
pythonrun.h
[3.14] gh-130396: Move PYOS_LOG2_STACK_MARGIN to internal headers (GH-135928) (#136173)
2025-07-01 13:44:32 +00:00
pythread.h
gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805)
2024-10-02 09:17:49 -07:00
pytypedefs.h
bpo-45459: Fix PyModuleDef_Slot type in the limited C API (GH-31668)
2022-03-03 23:06:55 +01:00
rangeobject.h
gh-87347: Add parenthesis around PyXXX_Check() arguments (#92815)
2022-06-16 13:49:43 +02:00
README.rst
gh-101101: Unstable C API tier (PEP 689) (GH-101102)
2023-02-28 09:31:01 +01:00
refcount.h
[3.14] gh-140153: Fix Py_REFCNT() definition on limited C API 3.11-3.13 (GH-140158) (#140164)
2025-10-15 15:02:03 +00:00
setobject.h
gh-87347: Add parenthesis around PyXXX_Check() arguments (#92815)
2022-06-16 13:49:43 +02:00
sliceobject.h
gh-115754: Add Py_GetConstant() function (#116883)
2024-03-21 16:07:00 +00:00
structmember.h
Fix typos in comments (#120188)
2024-06-07 10:19:41 +02:00
structseq.h
gh-106168: PyTuple_SET_ITEM() now checks the index (#106164)
2023-06-28 03:45:57 +02:00
sysmodule.h
gh-125604: Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-125605)
2024-10-18 09:26:08 -06:00
traceback.h
gh-87347: Add parenthesis around PyXXX_Check() arguments (#92815)
2022-06-16 13:49:43 +02:00
tupleobject.h
gh-87347: Add parenthesis around PyXXX_Check() arguments (#92815)
2022-06-16 13:49:43 +02:00
typeslots.h
Revert "gh-133395: add option for extension modules to specialize BINARY_OP/SUBSCR, apply to arrays (#133396)" (#133498)
2025-05-06 13:12:26 +03:00
unicodeobject.h
gh-132798: Schedule removal of PyUnicode_AsDecoded/Encoded functions for 3.15 (#132799)
2025-04-25 15:07:41 +02:00
warnings.h
bpo-35134: Split warnings.h and weakrefobject.h (GH-29042)
2021-10-19 01:31:57 +02:00
weakrefobject.h
gh-105927: Limit PyWeakref_GetRef() to limited C API 3.13 (#117091)
2024-03-20 23:52:23 +01:00

README.rst 

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/
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