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Vincent Fazio 72123063dd
gh-130115: fix thread identifiers for 32-bit musl (#130391) 
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

---------

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
2025-04-04 16:31:37 +02:00
..
clinic gh-131591: Implement PEP 768 (#131937) 2025-04-03 16:20:01 +01:00
frozen_modules gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
_warnings.c gh-131238: Move _Py_VISIT_STACKREF() to pycore_stackref.h (#131560) 2025-03-21 23:24:14 +01:00
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 gh-120400 ：Support Linux perf profile to see Python calls on RISC-V architecture (#120089) 2024-06-12 14:24:46 +01:00
assemble.c gh-128632: fix segfault on nested __classdict__ type param (#128744) 2025-04-04 06:23:35 -07:00
ast.c gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +01:00
ast_opt.c Fix PEP number in ast_opt.c for new finally check (#131928) 2025-03-31 16:29:23 +03:00
ast_unparse.c gh-119182: Use public PyUnicodeWriter in ast_unparse.c (#129208) 2025-01-23 01:44:43 +01:00
bltinmodule.c gh-131525: Cache the result of tuple_hash (#131529) 2025-03-27 09:57:06 -04:00
bootstrap_hash.c GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
brc.c Fix typos in documentation and comments (#119763) 2024-06-04 10:22:22 +00:00
bytecodes.c GH-131498: Cases generator: Parse down to C statement level. (GH-131948) 2025-04-02 16:31:59 +01:00
ceval.c GH-131770: increase assumed WASI stack size to 131072 (wasi-sdk default) (#131844) 2025-04-04 09:34:02 +01:00
ceval_gil.c gh-131591: Implement PEP 768 (#131937) 2025-04-03 16:20:01 +01:00
ceval_macros.h GH-127705: Use _PyStackRefs in the default build. (GH-127875) 2025-03-10 14:06:56 +00:00
codecs.c gh-131238: Remove more includes from pycore_interp.h (#131480) 2025-03-19 23:01:32 +01:00
codegen.c gh-131738: optimize builtin any/all/tuple calls with a generator expression arg (#131737) 2025-03-28 10:35:20 +00:00
compile.c gh-130881: Handle conditionally defined annotations (#130935) 2025-03-26 03:48:19 +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 gh-132002: Fix crash of ContextVar on unhashable str subtype (#132003) 2025-04-02 14:48:47 +03:00
critical_section.c gh-114203: Optimise simple recursive critical sections (#128126) 2024-12-23 13:31:33 +01:00
crossinterp.c gh-131238: Remove includes from pycore_interp.h (#131495) 2025-03-20 11:35:23 +00:00
crossinterp_data_lookup.h gh-76785: Improved Subinterpreters Compatibility with 3.12 (2/2) (gh-126707) 2024-11-12 10:41:51 -07:00
crossinterp_exceptions.h gh-76785: Minor Cleanup of Exception-related Cross-interpreter State (gh-126602) 2024-11-11 14:49:41 -07:00
dtoa.c gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +01:00
dup2.c gh-108765: Python.h no longer includes <unistd.h> (#108783) 2023-09-02 16:50:18 +02:00
dynamic_annotations.c bpo-32241: Add the const qualifire to declarations of umodifiable strings. (#4748) 2017-12-12 13:55:04 +02:00
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-131238: Remove more includes from pycore_interp.h (#131480) 2025-03-19 23:01:32 +01:00
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-131238: Remove pycore_runtime.h from pycore_pystate.h (#131356) 2025-03-19 17:33:24 +01:00
emscripten_signal.c GH-108614: Unbreak emscripten build (GH-109132) 2023-09-08 17:54:45 +01:00
emscripten_trampoline.c gh-128627: Skip wasm-gc on iOS Safari where it's broken (#130418) 2025-02-24 07:26:04 +08:00
errors.c gh-131401: fix data races in exception handling (#131447) 2025-03-20 12:02:05 +05:30
executor_cases.c.h GH-131498: Cases generator: Parse down to C statement level. (GH-131948) 2025-04-02 16:31:59 +01:00
fileutils.c Fix Windows build warnings (#131487) 2025-03-20 12:03:20 +01:00
flowgraph.c gh-130704: Strength reduce LOAD_FAST{_LOAD_FAST} (#130708) 2025-04-01 10:18:42 -07:00
formatter_unicode.c GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
frame.c gh-128421: Avoid TSAN warnings in sys._current_frames() (gh-131548) 2025-03-24 09:49:39 -04:00
frozen.c GH-89435: os.path should not be a frozen module (#126924) 2024-11-22 18:50:30 +00:00
frozenmain.c gh-105716: Fix _PyInterpreterState_IsRunningMain() For Embedders (gh-117140) 2024-03-21 18:20:20 -06:00
future.c gh-126139: Improve error message location for future statement with unknown feature (#126140) 2024-10-29 23:57:59 +00:00
gc.c gh-130704: Strength reduce LOAD_FAST{_LOAD_FAST} (#130708) 2025-04-01 10:18:42 -07:00
gc_free_threading.c gh-131586: Avoid refcount contention in some "special" calls (#131588) 2025-03-26 14:38:47 -04:00
gc_gil.c gh-100240: Use a consistent implementation for freelists (#121934) 2024-07-22 12:08:27 -04:00
generated_cases.c.h GH-131498: Cases generator: Parse down to C statement level. (GH-131948) 2025-04-02 16:31:59 +01:00
getargs.c GH-131238: More refactoring of core header files (GH-131351) 2025-03-17 14:41:05 +00:00
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 gh-126133: Only use start year in PSF copyright, remove end years (#126236) 2024-11-12 15:59:19 +02:00
getopt.c Make the Python CLI error message style more consistent (GH-128129) 2025-01-11 11:17:35 +02:00
getplatform.c bpo-32150: Expand tabs to spaces in C files. (#4583) 2017-11-28 17:56:10 +02:00
getversion.c gh-119132: Update sys.version to identify free-threaded or not. (gh-119134) 2024-05-18 19:44:40 +00:00
hamt.c gh-111178: remove redundant casts for functions with correct signatures (#131673) 2025-04-01 17:18:11 +02:00
hashtable.c gh-111545: Add Py_HashPointer() function (#112096) 2023-12-06 15:09:22 +01:00
import.c gh-131238: Remove more includes from pycore_interp.h (#131480) 2025-03-19 23:01:32 +01:00
importdl.c GH-131238: More refactoring of core header files (GH-131351) 2025-03-17 14:41:05 +00:00
index_pool.c gh-130740: Move some stdbool.h includes after Python.h (#130738) 2025-03-02 09:56:49 +00:00
initconfig.c gh-131591: Implement PEP 768 (#131937) 2025-04-03 16:20:01 +01:00
instruction_sequence.c gh-130080: move _Py_EnsureArrayLargeEnough to a separate header so it can be used outside of the compiler (#130930) 2025-03-13 16:02:58 +00:00
instrumentation.c gh-131763: Replace the redundant check with assert in remove_tools (#131765) 2025-03-26 18:36:04 -04:00
interpconfig.c GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
intrinsics.c gh-131238: Move _Py_VISIT_STACKREF() to pycore_stackref.h (#131560) 2025-03-21 23:24:14 +01:00
jit.c gh-131238: Add missing pycore_function.h includes for JIT compiler (#131571) 2025-03-21 23:37:49 +00:00
legacy_tracing.c gh-111178: fix UBSan failures for Python/legacy_tracing.c (#131611) 2025-03-24 11:00:32 +01:00
lock.c gh-111178: Fix function signatures to fix undefined behavior (#131191) 2025-03-14 09:52:15 +00:00
marshal.c gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +01:00
modsupport.c bpo-45325: Add a new 'p' parameter to Py_BuildValue to convert an integer into a Python bool (#28634) 2025-02-18 17:14:11 +00:00
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-100240: Use a consistent implementation for freelists (#121934) 2024-07-22 12:08:27 -04:00
opcode_targets.h gh-130704: Strength reduce LOAD_FAST{_LOAD_FAST} (#130708) 2025-04-01 10:18:42 -07:00
optimizer.c GH-131726: Split up _CHECK_VALIDITY_AND_SET_IP (GH-131810) 2025-04-01 16:55:05 -07:00
optimizer_analysis.c GH-131726: Split up _CHECK_VALIDITY_AND_SET_IP (GH-131810) 2025-04-01 16:55:05 -07:00
optimizer_bytecodes.c GH-131498: Cases generator: Parse down to C statement level. (GH-131948) 2025-04-02 16:31:59 +01:00
optimizer_cases.c.h GH-131498: Cases generator: Parse down to C statement level. (GH-131948) 2025-04-02 16:31:59 +01:00
optimizer_symbols.c GH-131331: Rename "not" to "invert" (GH-131334) 2025-03-20 16:59:41 -07:00
parking_lot.c gh-76785: Improved Subinterpreters Compatibility with 3.12 (1/2) (gh-126704) 2024-11-11 15:58:46 -07:00
pathconfig.c gh-111924: Fix data races when swapping allocators (gh-130287) 2025-02-20 11:31:15 -05:00
perf_jit_trampoline.c gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +01:00
perf_trampoline.c gh-131238: Remove includes from pycore_interp.h (#131495) 2025-03-20 11:35:23 +00:00
preconfig.c gh-106320: Remove private pylifecycle.h functions (#106400) 2023-07-04 09:41:43 +00:00
pyarena.c Chore: Fix typo in pyarena.c (#126527) 2024-11-07 16:37:41 +01:00
pyctype.c Include files missed in r72044. 2009-04-27 20:54:42 +00:00
pyfpe.c bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507) 2022-01-13 09:46:04 +01:00
pyhash.c gh-122854: Add Py_HashBuffer() function (#122855) 2024-08-30 15:42:27 +00:00
pylifecycle.c gh-131738: optimize builtin any/all/tuple calls with a generator expression arg (#131737) 2025-03-28 10:35:20 +00:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c gh-131238: Add pycore_interpframe_structs.h header (#131553) 2025-03-21 17:19:47 +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-120026: soft deprecate Py_HUGE_VAL macro (#120027) 2024-11-01 22:04:31 +00:00
Python-ast.c gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +01:00
Python-tokenize.c gh-111178: Fix function signatures for test_types (#131455) 2025-03-19 13:46:17 +00:00
pythonrun.c gh-131238: Remove more includes from pycore_interp.h (#131480) 2025-03-19 23:01:32 +01:00
pytime.c gh-131238: Remove pycore_runtime.h from pycore_pystate.h (#131356) 2025-03-19 17:33:24 +01:00
qsbr.c gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +01:00
README Issue #18093: Factor out the programs that embed the runtime 2014-07-25 21:52:14 +10:00
remote_debugging.c gh-131591: Implement PEP 768 (#131937) 2025-04-03 16:20:01 +01:00
specialize.c gh-130373: Avoid locking in _LOAD_ATTR_WITH_HINT (#130372) 2025-03-28 15:16:41 -07:00
stackrefs.c GH-131904: Fix Py_STACKREF_DEBUG build (GH-132022) 2025-04-03 09:40:37 +01:00
stdlib_module_names.h gh-118761: Optimise import time for ast (#131953) 2025-04-02 17:22:15 +01:00
structmember.c gh-117657: TSAN Fix races in PyMember_Get and PyMember_Set for C extensions (GH-123211) 2024-12-03 09:41:53 -05:00
suggestions.c GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
symtable.c gh-128632: fix segfault on nested __classdict__ type param (#128744) 2025-04-04 06:23:35 -07:00
sysmodule.c gh-131591: Implement PEP 768 (#131937) 2025-04-03 16:20:01 +01:00
thread.c gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +01:00
thread_nt.h GH-131296: Add missing UNREACHABLE mark in thread_nt.h (GH-131589) 2025-03-31 20:28:35 +01:00
thread_pthread.h gh-130115: fix thread identifiers for 32-bit musl (#130391) 2025-04-04 16:31:37 +02:00
thread_pthread_stubs.h gh-125161: return non zero value in pthread_self on wasi (#125303) 2024-10-13 20:59:41 +05:30
tier2_engine.md Docs: fix spelling of the word 'transferring' (#116641) 2024-03-13 23:53:32 +01:00
traceback.c gh-125434: Display thread name in faulthandler (#132016) 2025-04-04 12:24:41 +00:00
tracemalloc.c gh-131296: fix clang-cl warning in tracemalloc.c (#131514) 2025-03-22 10:38:47 +01:00
uniqueid.c gh-128923: Use zero to indicate unassigned unique id (#128925) 2025-01-17 16:42:27 +01:00
vm-state.md Fix typos in documentation and comments (#119763) 2024-06-04 10:22:22 +00:00

README 

Miscellaneous source files for the main Python shared library