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cpython/Python
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Eddie Elizondo ea2c001650
gh-84436: Implement Immortal Objects (gh-19474) 
This is the implementation of PEP683

Motivation:

The PR introduces the ability to immortalize instances in CPython which bypasses reference counting. Tagging objects as immortal allows up to skip certain operations when we know that the object will be around for the entire execution of the runtime.

Note that this by itself will bring a performance regression to the runtime due to the extra reference count checks. However, this brings the ability of having truly immutable objects that are useful in other contexts such as immutable data sharing between sub-interpreters.
2023-04-22 13:39:37 -06:00
..
clinic gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
deepfreeze gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
frozen_modules gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
_warnings.c gh-101758: Clean Up Uses of Import State (gh-101919) 2023-02-15 15:32:31 -07:00
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 gh-96143: Move the perf trampoline files to the Python directory (#98675) 2022-10-25 23:34:22 +01:00
assemble.c gh-87092: move assembler related code from compile.c to assemble.c (#103277) 2023-04-11 11:15:09 +01:00
ast_opt.c GH-101291: Rearrange the size bits in PyLongObject (GH-102464) 2023-03-22 14:49:51 +00:00
ast_unparse.c gh-100227: Move _str_replace_inf to PyInterpreterState (gh-102333) 2023-02-28 14:16:39 -07:00
ast.c GH-91079: Decouple C stack overflow checks from Python recursion checks. (GH-96510) 2022-10-05 01:34:03 +01:00
bltinmodule.c gh-102939: Fix "conversion from Py_ssize_t to long" warning in builtins (GH-102940) 2023-03-23 10:37:04 +00:00
bootstrap_hash.c gh-81057: Move More Globals in Core Code to _PyRuntimeState (gh-99516) 2022-11-16 09:37:14 -07:00
bytecodes.c GH-103488: Use return-offset, not yield-offset. (GH-103502) 2023-04-13 16:19:07 +01:00
ceval_gil.c gh-103167: Fix -Wstrict-prototypes warnings by using (void) for functions with no args (GH-103168) 2023-04-05 09:22:33 +02:00
ceval_macros.h GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
ceval.c gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
codecs.c gh-77757: replace exception wrapping by PEP-678 notes in typeobject's __set_name__ (#103402) 2023-04-11 11:53:06 +01:00
compile.c GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
condvar.h gh-74953: _PyThread_cond_after() uses _PyTime_t (#94056) 2022-06-21 15:45:49 +02:00
context.c gh-81057: Move contextvars-related Globals to _PyRuntimeState (gh-99400) 2022-11-16 09:54:28 -07:00
dtoa.c gh-100227: Move the dtoa State to PyInterpreterState (gh-102331) 2023-02-28 13:14:40 -07:00
dup2.c gh-95174: Handle missing dup() and constants in WASI (GH-95229) 2022-07-26 11:16:51 +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 bpo-44959: Add fallback to extension modules with '.sl' suffix on HP-UX (GH-27857) 2021-09-08 14:43:00 +02:00
dynload_shlib.c gh-101758: Clean Up Uses of Import State (gh-101919) 2023-02-15 15:32:31 -07:00
dynload_stub.c Issue #13959: Re-implement imp.get_suffixes() in Lib/imp.py. 2012-05-04 15:20:40 -04:00
dynload_win.c gh-102255: Improve build support for Windows API partitions (GH-102256) 2023-03-09 21:09:12 +00:00
emscripten_signal.c bpo-47176: Interrupt handling for wasm32-emscripten builds without pthreads (GH-32209) 2022-04-03 22:58:52 +02:00
errors.c gh-77757: replace exception wrapping by PEP-678 notes in typeobject's __set_name__ (#103402) 2023-04-11 11:53:06 +01:00
fileutils.c gh-99726: Improves correctness of stat results for Windows, and uses faster API when available (GH-102149) 2023-03-16 17:27:21 +00:00
flowgraph.c gh-91276: remove unused _PyOpcode_RelativeJump (#103156) 2023-04-11 11:20:39 +01:00
formatter_unicode.c gh-89653: Use int type for Unicode kind (#92704) 2022-05-13 12:41:05 +02:00
frame.c gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (in Python/) (#102193) 2023-02-28 11:50:52 +00:00
frozen.c gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
frozenmain.c gh-93103: Parser uses PyConfig.parser_debug instead of Py_DebugFlag (#93106) 2022-05-24 22:35:08 +02:00
future.c gh-87092: do not allocate PyFutureFeatures dynamically (GH-98913) 2022-11-02 15:13:07 +00:00
generated_cases.c.h GH-103488: Use return-offset, not yield-offset. (GH-103502) 2023-04-13 16:19:07 +01:00
getargs.c gh-99240: Reset pointer to NULL when the pointed memory is freed in argument parsing (#99890) 2022-12-17 12:07:44 +05:30
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 2023. (gh-100848) 2023-01-08 09:13:25 -06:00
getopt.c gh-90300: split --help output into separate options (#30331) 2022-06-01 05:50:01 -04:00
getplatform.c bpo-32150: Expand tabs to spaces in C files. (#4583) 2017-11-28 17:56:10 +02:00
getversion.c gh-81057: Move Globals in Core Code to _PyRuntimeState (gh-99496) 2022-11-15 09:45:11 -07:00
hamt.c gh-99537: Use Py_SETREF() function in C code (#99657) 2022-11-22 13:39:11 +01:00
hashtable.c bpo-41061: Fix incorrect expressions in hashtable (GH-21028) 2020-06-22 00:41:48 -07:00
import.c gh-102660: Fix is_core_module() (gh-103257) 2023-04-04 17:03:40 -06:00
importdl.c gh-98627: Add an Optional Check for Extension Module Subinterpreter Compatibility (gh-99040) 2023-02-15 18:16:00 -07:00
importdl.h bpo-47162: Add call trampoline to mitigate bad fpcasts on Emscripten (GH-32189) 2022-03-30 12:28:33 -07:00
initconfig.c gh-103167: Fix -Wstrict-prototypes warnings by using (void) for functions with no args (GH-103168) 2023-04-05 09:22:33 +02:00
instrumentation.c gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
intrinsics.c gh-90110: Fix the c-analyzer Tool (#102483) 2023-03-06 19:40:09 -07:00
legacy_tracing.c gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
makeopcodetargets.py GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
marshal.c GH-101291: Rearrange the size bits in PyLongObject (GH-102464) 2023-03-22 14:49:51 +00:00
modsupport.c gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (in Python/) (#102193) 2023-02-28 11:50:52 +00:00
mysnprintf.c Add a warning message about PyOS_snprintf (#95993) 2022-10-07 11:49:53 -07:00
mystrtoul.c bpo-35134: Add Include/cpython/longobject.h (GH-29044) 2021-10-19 02:04:52 +02:00
opcode_metadata.h GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
opcode_targets.h GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
pathconfig.c gh-98978: Fix Py_SetPythonHome(NULL) (#99066) 2022-11-03 18:34:32 +01:00
perf_trampoline.c gh-81057: Move Ceval Trampoline Globals to _PyRuntimeState (gh-100083) 2022-12-08 17:17:20 -07:00
preconfig.c gh-77782: Deprecate global configuration variable (#93943) 2022-06-17 16:12:00 +02:00
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 bpo-29410: Change the default hash algorithm to SipHash13. (GH-28752) 2021-10-10 17:29:46 +09:00
pylifecycle.c gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
pystrcmp.c bpo-41524: fix pointer bug in PyOS_mystr{n}icmp (GH-21845) 2020-08-27 14:45:25 +09:00
pystrhex.c gh-91768: C API no longer use "const PyObject*" type (#91769) 2022-04-21 22:07:19 +02:00
pystrtod.c bpo-45995: add "z" format specifer to coerce negative 0 to zero (GH-30049) 2022-04-11 15:34:18 +01:00
Python-ast.c gh-100227: Move _str_replace_inf to PyInterpreterState (gh-102333) 2023-02-28 14:16:39 -07:00
Python-tokenize.c gh-102856: Initial implementation of PEP 701 (#102855) 2023-04-19 11:18:16 -05:00
pythonrun.c gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (#102816) 2023-03-19 15:17:59 +00:00
pytime.c gh-97786: Fix compiler warnings in pytime.c (#101826) 2023-02-19 17:16:11 -08:00
README Issue #18093: Factor out the programs that embed the runtime 2014-07-25 21:52:14 +10:00
specialize.c GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
stdlib_module_names.h gh-99108: Refactor _sha256 & _sha512 into _sha2. (#101924) 2023-02-15 22:08:20 -08:00
structmember.c gh-99300: Replace Py_INCREF() with Py_NewRef() (#99530) 2022-11-16 18:34:24 +01:00
suggestions.c GH-81057: remove static state from suggestions.c (#99411) 2022-11-30 16:55:16 +05:30
symtable.c gh-102371: move _Py_Mangle from compile.c to symtable.c (#102372) 2023-03-02 18:38:22 +00:00
sysmodule.c gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
thread_nt.h gh-81057: Move Threading-Related Globals to _PyRuntimeState (#100084) 2022-12-08 17:50:58 -07:00
thread_pthread_stubs.h gh-81057: Move Threading-Related Globals to _PyRuntimeState (#100084) 2022-12-08 17:50:58 -07:00
thread_pthread.h gh-81057: Fix the wasm32-wasi Buildbot (gh-100139) 2022-12-09 10:17:54 -07:00
thread.c gh-81057: Move Threading-Related Globals to _PyRuntimeState (#100084) 2022-12-08 17:50:58 -07:00
traceback.c gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (#102760) 2023-03-16 19:03:52 +00:00

README 

Miscellaneous source files for the main Python shared library