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Ken Jin 22b0de2755
gh-117139: Convert the evaluation stack to stack refs (#118450) 
This PR sets up tagged pointers for CPython.

The general idea is to create a separate struct _PyStackRef for everything on the evaluation stack to store the bits. This forces the C compiler to warn us if we try to cast things or pull things out of the struct directly.

Only for free threading: We tag the low bit if something is deferred - that means we skip incref and decref operations on it. This behavior may change in the future if Mark's plans to defer all objects in the interpreter loop pans out.

This implies a strict stack reference discipline is required. ALL incref and decref operations on stackrefs must use the stackref variants. It is unsafe to untag something then do normal incref/decref ops on it.

The new incref and decref variants are called dup and close. They mimic a "handle" API operating on these stackrefs.

Please read Include/internal/pycore_stackref.h for more information!

---------

Co-authored-by: Mark Shannon <9448417+markshannon@users.noreply.github.com>
2024-06-27 03:10:43 +08:00
..
clinic gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520) 2024-06-21 17:19:31 +02:00
frozen_modules gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
_warnings.c gh-119049: Fix incorrect display of warning which is constructed by C API (GH-119063) 2024-05-16 20:27:59 +00:00
asdl.c
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-117494: extract the Instruction Sequence data structure into a separate file (#117496) 2024-04-04 15:47:26 +00:00
ast.c gh-116126: Implement PEP 696 (#116129) 2024-05-03 06:17:32 -07:00
ast_opt.c Fixes loop variables to be the same types as their limit (GH-120958) 2024-06-24 17:11:47 +01:00
ast_unparse.c gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520) 2024-06-21 17:19:31 +02:00
bltinmodule.c gh-120526: Correct signature of map() builtin (GH-120528) 2024-06-15 05:33:09 +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 Fix typos in documentation and comments (#119763) 2024-06-04 10:22:22 +00:00
bytecodes.c gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
ceval.c gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
ceval_gil.c gh-118727: Don't drop the GIL in drop_gil() unless the current thread holds it (#118745) 2024-05-23 16:59:35 -04:00
ceval_macros.h gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
codecs.c gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520) 2024-06-21 17:19:31 +02:00
compile.c Fixes loop variables to be the same types as their limit (GH-120958) 2024-06-24 17:11:47 +01:00
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-120811: Fix reference leak upon _PyContext_Exit failure (#120812) 2024-06-21 17:28:19 +00:00
critical_section.c gh-119344: Make critical section API public (#119353) 2024-06-21 15:50:18 -04:00
crossinterp.c gh-120838: Add _PyThreadState_WHENCE_FINI (gh-121010) 2024-06-25 14:35:12 -06:00
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 gh-117398: Use Per-Interpreter State for the _datetime Static Types (gh-119929) 2024-06-03 17:09:18 -06:00
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 gh-106213: Make Emscripten trampolines work with JSPI (GH-106219) 2023-09-15 15:04:21 -07:00
errors.c gh-118702: Implement vectorcall for BaseException (#118703) 2024-05-10 21:08:24 +02:00
executor_cases.c.h gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
fileutils.c gh-117657: Fix TSan reported data race on ioctl_works (#120175) 2024-06-17 13:23:40 -04:00
flowgraph.c Fixes loop variables to be the same types as their limit (GH-120958) 2024-06-24 17:11:47 +01:00
formatter_unicode.c gh-92536: Remove PyUnicode_READY() calls (#105210) 2023-06-02 01:33:17 +02:00
frame.c gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
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 Fixes loop variables to be the same types as their limit (GH-120958) 2024-06-24 17:11:47 +01:00
gc.c gh-83754: Use the Py_TYPE() macro (#120599) 2024-06-17 10:34:29 +02:00
gc_free_threading.c gh-117657: Fix race involving GC and heap initialization (#119923) 2024-06-04 09:42:13 -04:00
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 gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
getargs.c Fixes loop variables to be the same types as their limit (GH-120958) 2024-06-24 17:11:47 +01:00
getcompiler.c
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 gh-119132: Update sys.version to identify free-threaded or not. (gh-119134) 2024-05-18 19:44:40 +00:00
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 gh-120838: Add _PyThreadState_WHENCE_FINI (gh-121010) 2024-06-25 14:35:12 -06:00
importdl.c gh-117953: Imply Single-phase Init if the Init Function Fails (gh-118684) 2024-05-06 21:16:22 -06:00
initconfig.c gh-119574: Add some missing environment variables to '--help-env'. (GH-120006) 2024-06-18 17:12:58 +00:00
instruction_sequence.c gh-117680: Fix msvc warning in instruction_sequence.c (#118326) 2024-04-26 17:20:30 +01:00
instrumentation.c gh-117657: Fix some simple races in instrumentation.c (GH-120118) 2024-06-13 17:31:21 +08:00
interpconfig.c gh-76785: Fix a Refleak in _interpreters.new_config() (gh-117491) 2024-04-03 01:10:26 +00:00
intrinsics.c gh-74929: Implement PEP 667 (GH-115153) 2024-05-04 12:12:10 +01:00
jit.c GH-118844: Fix build failures when combining --disable-gil with --enable-experimental-jit (GH-118935) 2024-05-11 16:19:31 -07:00
legacy_tracing.c gh-107674: Lazy load line number to improve performance of tracing (GH-118127) 2024-04-29 09:54:52 +01:00
lock.c gh-117511: Make PyMutex public in the non-limited API (#117731) 2024-06-20 11:29:08 -04:00
marshal.c gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520) 2024-06-21 17:19:31 +02:00
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-120507: Lower the BEFORE_WITH and BEFORE_ASYNC_WITH instructions. (#120640) 2024-06-18 12:17:46 +01:00
optimizer.c gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
optimizer_analysis.c gh-120642: Move private PyCode APIs to the internal C API (#120643) 2024-06-26 13:54:03 +02:00
optimizer_bytecodes.c gh-120437: Fix _CHECK_STACK_SPACE optimization problems introduced in gh-118322 (GH-120712) 2024-06-19 23:34:39 +08:00
optimizer_cases.c.h gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
optimizer_symbols.c gh-120642: Move private PyCode APIs to the internal C API (#120643) 2024-06-26 13:54:03 +02:00
parking_lot.c gh-117657: Avoid sem_clockwait in TSAN (#119915) 2024-06-03 13:42:27 -04:00
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 GH-118844: Fix build failures when combining --disable-gil with --enable-experimental-jit (GH-118935) 2024-05-11 16:19:31 -07:00
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 gh-119219: Remove two obsolete TODOs. (#119223) 2024-05-20 16:54:16 +00:00
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 gh-119613: Use C99+ functions instead of Py_IS_NAN/INFINITY/FINITE (#119619) 2024-05-29 09:51:19 +02:00
pylifecycle.c gh-120642: Move private PyCode APIs to the internal C API (#120643) 2024-06-26 13:54:03 +02:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c gh-120838: Add _PyThreadState_WHENCE_FINI (gh-121010) 2024-06-25 14:35:12 -06:00
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-119613: Use C99+ functions instead of Py_IS_NAN/INFINITY/FINITE (#119619) 2024-05-29 09:51:19 +02:00
Python-ast.c gh-120108: Fix deepcopying of AST trees with .parent attributes (#120114) 2024-06-25 08:12:11 -07:00
Python-tokenize.c gh-120343: Fix column offsets of multiline tokens in tokenize (#120391) 2024-06-12 20:52:55 +02:00
pythonrun.c gh-111201: A new Python REPL (GH-111567) 2024-05-05 21:32:23 +02:00
pytime.c gh-119613: Use C99+ functions instead of Py_IS_NAN/INFINITY/FINITE (#119619) 2024-05-29 09:51:19 +02:00
qsbr.c Fix typos in comments (#120481) 2024-06-19 23:16:14 -04:00
README
specialize.c gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
stdlib_module_names.h gh-111201: A new Python REPL (GH-111567) 2024-05-05 21:32:23 +02:00
structmember.c gh-117657: Fix __slots__ thread safety in free-threaded build (#119368) 2024-06-17 18:44:54 +00:00
suggestions.c Fixes loop variables to be the same types as their limit (GH-120958) 2024-06-24 17:11:47 +01:00
symtable.c Fixes loop variables to be the same types as their limit (GH-120958) 2024-06-24 17:11:47 +01:00
sysmodule.c gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520) 2024-06-21 17:19:31 +02:00
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 gh-110850: Remove _PyTime_TimeUnchecked() function (#118552) 2024-05-05 12:15:19 +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 gh-117764: Fix and add signatures for many builtins (GH-117769) 2024-04-12 13:56:41 +03:00
tracemalloc.c gh-111389: Add PyHASH_MULTIPLIER constant (#119214) 2024-05-21 19:51:51 +02:00
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