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Miss Islington (bot) 240c200cce
[3.13] gh-130115: fix thread identifiers for 32-bit musl (GH-130391) (GH-132089) 
CPython's pthread-based thread identifier relies on pthread_t being able
to be represented as an unsigned integer type.

This is true in most Linux libc implementations where it's defined as an
unsigned long, however musl typedefs it as a struct *.

If the pointer has the high bit set and is cast to PyThread_ident_t, the
resultant value can be sign-extended [0]. This can cause issues when
comparing against threading._MainThread's identifier. The main thread's
identifier value is retrieved via _get_main_thread_ident which is backed
by an unsigned long which truncates sign extended bits.

  >>> hex(threading.main_thread().ident)
  '0xb6f33f3c'
  >>> hex(threading.current_thread().ident)
  '0xffffffffb6f33f3c'

Work around this by conditionally compiling in some code for non-glibc
based Linux platforms that are at risk of sign-extension to return a
PyLong based on the main thread's unsigned long thread identifier if the
current thread is the main thread.

[0]: https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Arrays-and-pointers-implementation.html

---------
(cherry picked from commit 72123063dd)

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Co-authored-by: Vincent Fazio <vfazio@gmail.com>
2025-04-04 22:57:35 +02:00
..
clinic [3.13] gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520) (GH-120945) 2024-06-24 20:24:19 +02:00
frozen_modules gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
_warnings.c [3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556) 2025-02-25 22:50:26 +00:00
adaptive.md GH-98686: Get rid of "adaptive" and "quick" instructions (GH-99182) 2022-11-09 10:50:09 -08:00
asdl.c bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933) 2021-03-23 20:47:40 +01:00
asm_trampoline.S [3.13] gh-120400 ：Support Linux perf profile to see Python calls on RISC-V architecture (GH-120089) (#120413) 2024-06-14 17:03:24 +02:00
assemble.c [3.13] gh-128632: fix segfault on nested __classdict__ type param (GH-128744) (#132085) 2025-04-04 08:23:40 -07:00
ast.c gh-116126: Implement PEP 696 (#116129) 2024-05-03 06:17:32 -07:00
ast_opt.c [3.13] gh-123344: Add missing ast optimizations for PEP 696 (GH-123377) (#123427) 2024-08-28 14:02:34 +00:00
ast_unparse.c [3.13] gh-125268: Use static string for "1e309" in AST (GH-125272) (GH-125280) 2024-10-24 13:59:23 -04:00
bltinmodule.c [3.13] gh-131670: Fix crash in anext() when __anext__ is sync and raises (GH-131682) (#131686) 2025-03-24 19:27:01 +00:00
bootstrap_hash.c gh-110014: Fix bootstrap_hash.c: remove debug code (#110161) 2023-09-30 22:21:20 +00:00
brc.c gh-110481: Fix biased reference counting queue initialization. (#117271) 2024-03-28 09:28:39 -04:00
bytecodes.c [3.13] GH-123545: Remove duplicate Py_DECREF when handling _PyOptimizer_Optimize errors (GH-123759) 2024-09-06 09:02:32 -07:00
ceval.c [3.13] gh-130382: add missing _PyReftracerTrack to ceval Py_DECREF (GH-130689) (#131195) 2025-03-14 09:52:05 -04:00
ceval_gil.c [3.13] gh-122201: Lock mutex when setting handling_thread to NULL (GH-122204) (#122319) 2024-07-26 17:30:08 +00:00
ceval_macros.h [3.13] gh-117657: Avoid race in PAUSE_ADAPTIVE_COUNTER in free-threaded build (GH-122190) (#122475) 2024-07-30 18:18:25 +00:00
codecs.c [3.13] gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520) (GH-120945) 2024-06-24 20:24:19 +02:00
compile.c [3.13] Postpone <stdbool.h> inclusion after Python.h (#130641) (#130675) 2025-02-28 09:40:06 +00:00
condvar.h gh-104530: Enable native Win32 condition variables by default (GH-104531) 2024-02-02 13:50:51 +00:00
config_common.h gh-76785: Add PyInterpreterConfig Helpers (gh-117170) 2024-04-02 20:35:52 +00:00
context.c [3.13] gh-132002: Fix crash of ContextVar on unhashable str subtype (GH-132003) (#132007) 2025-04-02 12:15:44 +00:00
critical_section.c [3.13] gh-119344: Make critical section API public (GH-119353) (#120856) 2024-06-21 20:20:41 +00:00
crossinterp.c [3.13] gh-127165: Disallow embedded NULL characters in _interpreters (GH-127199) (#127463) 2024-12-01 06:55:55 +00:00
crossinterp_data_lookup.h gh-76785: Improved Subinterpreters Compatibility with 3.12 (gh-115424) 2024-02-13 14:56:49 -07:00
crossinterp_exceptions.h [3.13] gh-117398: Use Per-Interpreter State for the _datetime Static Types (gh-120009) 2024-06-03 23:37:28 +00:00
dtoa.c gh-91565: Replace bugs.python.org links with Devguide/GitHub ones (GH-91568) 2024-04-01 13:02:07 +00:00
dup2.c gh-108765: Python.h no longer includes <unistd.h> (#108783) 2023-09-02 16:50:18 +02:00
dynamic_annotations.c
dynload_hpux.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
dynload_shlib.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
dynload_stub.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
dynload_win.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
emscripten_signal.c GH-108614: Unbreak emscripten build (GH-109132) 2023-09-08 17:54:45 +01:00
emscripten_trampoline.c [3.13] gh-121698 Emscripten: Use updated WebAssembly type reflection proposal (GH-121699) (GH-121745) 2024-07-14 12:01:03 +02:00
errors.c [3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556) 2025-02-25 22:50:26 +00:00
executor_cases.c.h [3.13] GH-123545: Remove duplicate Py_DECREF when handling _PyOptimizer_Optimize errors (GH-123759) 2024-09-06 09:02:32 -07:00
fileutils.c gh-126780: Fix ntpath.normpath() for drive-relative paths (GH-126801) 2024-11-21 15:10:12 +00:00
flowgraph.c [3.13] gh-130740: Move some stdbool.h includes after Python.h (#130738) (#130756) 2025-03-03 13:09:59 +01:00
formatter_unicode.c gh-92536: Remove PyUnicode_READY() calls (#105210) 2023-06-02 01:33:17 +02:00
frame.c gh-118272: set stacktop to 0 before freeing contents, to avoid access to invalid objects during GC (#118478) 2024-05-01 21:51:40 +01:00
frozen.c gh-108716: Cleanup remaining deepfreeze infrastructure (#116919) 2024-03-18 11:13:11 -07:00
frozenmain.c gh-105716: Fix _PyInterpreterState_IsRunningMain() For Embedders (gh-117140) 2024-03-21 18:20:20 -06:00
future.c [3.13] gh-126139: Improve error message location for future statement with unknown feature (GH-126140) (#126155) 2024-10-30 00:36:06 +00:00
gc.c [3.13] gh-131740: Update PyUnstable_GC_VisitObjects to traverse perm … (gh-131754) 2025-03-27 02:43:16 +09:00
gc_free_threading.c [3.13] gh-129533: Update PyGC_Enable/Disable/IsEnabled to use atomic operat… (gh-129756) 2025-02-06 23:11:17 +00:00
gc_gil.c gh-111968: Rename freelist related struct names to Eric's suggestion (gh-115329) 2024-02-14 00:32:51 +00:00
generated_cases.c.h [3.13] gh-123091: Use _Py_IsImmortalLoose() (#123511) (#123600) 2024-09-02 15:23:29 +02:00
getargs.c [3.13] gh-118814: Fix the TypeVar constructor when name is passed by keyword (GH-122664) (GH-122806) 2024-08-08 09:49:21 +03:00
getcompiler.c closes bpo-43278: remove unnecessary leading '\n' from COMPILER when build with GCC/Clang (GH-24606) 2021-02-25 20:24:21 -08:00
getcopyright.c Update copyright years to 2024. (GH-113608) 2024-01-16 21:54:05 +01:00
getopt.c gh-110079: Remove extern "C" { ...} in C code (#110080) 2023-09-29 10:56:49 +02:00
getplatform.c
getversion.c [3.13] gh-119132: Update sys.version to identify free-threaded or not. (gh-119134) (#119153) 2024-05-18 16:49:11 -04:00
hamt.c gh-106320: Remove private PyLong C API functions (#108429) 2023-08-24 18:53:50 +02:00
hashtable.c gh-111545: Add Py_HashPointer() function (#112096) 2023-12-06 15:09:22 +01:00
import.c [3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556) 2025-02-25 22:50:26 +00:00
importdl.c [3.13] gh-122907: Fix Builds Without HAVE_DYNAMIC_LOADING Set (gh-122952) (#122984) 2024-12-03 16:46:30 +00:00
initconfig.c [3.13] gh-131818: Add imply -P in -I's help message (GH-131819) (#131822) 2025-03-28 08:13:00 +00:00
instruction_sequence.c [3.13] gh-130740: Move some stdbool.h includes after Python.h (#130738) (#130756) 2025-03-03 13:09:59 +01:00
instrumentation.c [3.13] gh-131141: fix data race in instrumentation while registering callback (#131166) 2025-03-13 09:41:26 +00:00
interpconfig.c gh-76785: Fix a Refleak in _interpreters.new_config() (gh-117491) 2024-04-03 01:10:26 +00:00
intrinsics.c [3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556) 2025-02-25 22:50:26 +00:00
jit.c [3.13] GH-118844: Fix build failures when combining --disable-gil with --enable-experimental-jit (GH-118959) 2024-05-13 04:53:30 +00:00
legacy_tracing.c [3.13] gh-117657: Fix TSAN data race in _PyEval_SetTrace assertion (gh-131561) (#131564) 2025-03-21 18:48:40 +00:00
lock.c [3.13] gh-131082: Add missing guards for WIN32_LEAN_AND_MEAN (GH-131044) (#131084) 2025-03-11 11:56:54 +00:00
marshal.c [3.13] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122012) 2024-07-19 09:13:08 +00:00
modsupport.c gh-84489: Properly handle trailing spaces in Py_BuildValue() format strings (GH-21158) 2023-10-11 14:44:06 +03:00
mysnprintf.c Add a warning message about PyOS_snprintf (#95993) 2022-10-07 11:49:53 -07:00
mystrtoul.c gh-108765: Python.h no longer includes <ctype.h> (#108831) 2023-09-03 18:54:27 +02:00
object_stack.c gh-111968: Split _Py_dictkeys_freelist out of _Py_dict_freelist (gh-115505) 2024-02-16 01:01:36 +00:00
opcode_targets.h GH-118095: Use broader specializations of CALL in tier 1, for better tier 2 support of calls. (GH-118322) 2024-05-04 12:11:11 +01:00
optimizer.c [3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643) (#121043) 2024-06-26 15:35:19 +02:00
optimizer_analysis.c [3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643) (#121043) 2024-06-26 15:35:19 +02:00
optimizer_bytecodes.c [3.13] gh-119258: Backport optimizer frame fixes in GH-119365 (GH-120699) 2024-06-20 23:55:20 +08:00
optimizer_cases.c.h [3.13] gh-119258: Backport optimizer frame fixes in GH-119365 (GH-120699) 2024-06-20 23:55:20 +08:00
optimizer_symbols.c [3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643) (#121043) 2024-06-26 15:35:19 +02:00
parking_lot.c [3.13] gh-112804: Clamping timeout value for _PySemaphore_PlatformWait (gh-124914) (gh-124991) 2024-10-07 16:53:32 +00:00
pathconfig.c gh-117987: Restore several functions removed in Python 3.13 alpha 1 (GH-117993) 2024-04-18 15:20:38 +02:00
perf_jit_trampoline.c [3.13] GH-118844: Fix build failures when combining --disable-gil with --enable-experimental-jit (GH-118959) 2024-05-13 04:53:30 +00:00
perf_trampoline.c gh-118518: Allow perf to work without frame pointers (#112254) 2024-05-05 03:07:29 +02:00
preconfig.c gh-106320: Remove private pylifecycle.h functions (#106400) 2023-07-04 09:41:43 +00:00
pyarena.c bpo-43244: Remove the pyarena.h header (GH-25007) 2021-03-24 02:23:01 +01:00
pyctype.c
pyfpe.c bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507) 2022-01-13 09:46:04 +01:00
pyhash.c [3.13] gh-111389: Add PyHASH_MULTIPLIER constant (GH-119214) (#119334) 2024-06-04 09:26:25 +02:00
pylifecycle.c [3.13] gh-130940: Remove PyConfig.use_system_logger (#131129) 2025-03-13 11:53:11 +08:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c [3.13] gh-126914: Store the Preallocated Thread State's Pointer in a PyInterpreterState Field (gh-127114) 2024-12-02 18:41:57 +00:00
pystrcmp.c gh-108767: Replace ctype.h functions with pyctype.h functions (#108772) 2023-09-01 18:36:53 +02:00
pystrhex.c gh-108765: pystrhex: Replace stdlib.h abs() with Py_ABS() (#108830) 2023-09-02 23:15:54 +02:00
pystrtod.c gh-108765: Cleanup #include in Python/*.c files (#108977) 2023-09-06 15:56:08 +02:00
Python-ast.c [3.13] gh-126105: Fix crash in ast module, when ._fields is deleted (GH-126115) (#126130) 2024-10-29 16:07:32 +00:00
Python-tokenize.c [3.13] gh-120317: Lock around global state in the tokenize module (GH-120318) (#121841) 2024-07-16 10:03:47 +00:00
pythonrun.c [3.13] gh-117174: Add a new route in linecache to fetch interactive source code (GH-117500) (#131060) 2025-03-10 23:11:24 +00:00
pytime.c gh-110850: Remove _PyTime_TimeUnchecked() function (#118552) 2024-05-05 12:15:19 +02:00
qsbr.c [3.13] gh-130794: Process interpreter QSBR queue in _PyMem_AbandonDelayed. (gh-130808) (#130857) 2025-03-04 23:35:22 +00:00
README
specialize.c [3.13] gh-125610: Fix STORE_ATTR_INSTANCE_VALUE specialization check (GH-125612) (GH-127698) 2024-12-06 16:14:26 +00:00
stdlib_module_names.h [3.13] gh-126925: Modify how iOS test results are gathered (GH-127592) (#127754) 2024-12-09 14:39:11 +08:00
structmember.c [3.13] gh-117657: Fix __slots__ thread safety in free-threaded build (GH-119368) (#120655) 2024-06-17 19:12:25 +00:00
suggestions.c gh-113845: Fix a compiler warning in Python/suggestions.c (GH-113949) 2024-01-11 20:31:24 +02:00
symtable.c [3.13] gh-128632: fix segfault on nested __classdict__ type param (GH-128744) (#132085) 2025-04-04 08:23:40 -07:00
sysmodule.c [3.13] gh-131082: Add missing guards for WIN32_LEAN_AND_MEAN (GH-131044) (#131084) 2025-03-11 11:56:54 +00:00
thread.c gh-110850: Cleanup PyTime API: PyTime_t are nanoseconds (#115753) 2024-02-21 11:46:00 +01:00
thread_nt.h gh-110850: Use _PyDeadline_Get() in EnterNonRecursiveMutex() (#118556) 2024-05-04 09:39:58 +02:00
thread_pthread.h [3.13] gh-130115: fix thread identifiers for 32-bit musl (GH-130391) (GH-132089) 2025-04-04 22:57:35 +02:00
thread_pthread_stubs.h GH-110829: Ensure Thread.join() joins the OS thread (#110848) 2023-11-04 13:59:24 +00:00
tier2_engine.md Docs: fix spelling of the word 'transferring' (#116641) 2024-03-13 23:53:32 +01:00
traceback.c [3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556) 2025-02-25 22:50:26 +00:00
tracemalloc.c [3.13] gh-128679: Clear the ref tracer in _PyTraceMalloc_Stop() (#129258) 2025-01-24 14:54:02 +01:00
vm-state.md High level docs for the VM state (#111621) 2023-11-01 22:55:10 +00:00

README 

Miscellaneous source files for the main Python shared library