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* gh-126255: Ignore warning about JIT being deactivated when perf support is ↵mpage2024-11-012-1/+7
| | | | | | | | | | | active in `test_embed.InitConfigTests.test_initconfig_api` (#126302) Temporarily ignore warnings about JIT deactivation when perf support is active. This will be reverted as soon as a way is found to determine at run time whether the interpreter was built with JIT. Currently, this is not possible on Windows. Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru> Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com> Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* gh-120026: soft deprecate Py_HUGE_VAL macro (#120027)Sergey B Kirpichev2024-11-011-2/+2
| | | Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
* gh-126072: do not add `None` to `co_consts` if there is no docstring (GH-126101)Xuanteng Huang2024-10-303-3/+15
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* gh-124855: Don't allow the JIT and perf support to be active at the same ↵Pablo Galindo Salgado2024-10-302-7/+22
| | | | time (#124856)
* gh-126139: Improve error message location for future statement with unknown ↵Brian Schubert2024-10-291-2/+10
| | | | feature (#126140)
* gh-118423: Add `INSTRUCTION_SIZE` macro to code generator (GH-125467)Tomas R.2024-10-293-28/+28
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* gh-126105: Fix crash in `ast` module, when `._fields` is deleted (#126115)sobolevn2024-10-291-10/+8
| | | | Previously, if the `ast.AST._fields` attribute was deleted, attempts to create a new `as`t node would crash due to the assumption that `_fields` always had a non-NULL value. Now it has been fixed by adding an extra check to ensure that `_fields` does not have a NULL value (this can happen when you manually remove `_fields` attribute).
* GH-125837: Split `LOAD_CONST` into three. (GH-125972)Mark Shannon2024-10-2910-139/+204
| | | | | | | | * Add LOAD_CONST_IMMORTAL opcode * Add LOAD_SMALL_INT opcode * Remove RETURN_CONST opcode
* GH-125912: Teach the JIT's optimizer about _BINARY_OP_INPLACE_ADD_UNICODE ↵Brandt Bucher2024-10-282-0/+37
| | | | (GH-125935)
* GH-125515: Reduce number of compiler warnings in generated code (GH-125697)Mark Shannon2024-10-282-5/+7
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* gh-126018: Avoid aborting due to unnecessary assert in `sys.audit` (#126020)devdanzin2024-10-271-1/+0
| | | | Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
* GH-125911: Call combine_symbol_mask on the initial trampoline of a trace ↵Nadeshiko Manju2024-10-251-0/+1
| | | | (GH-125973)
* gh-125900: Clean-up logic around immortalization in free-threading (#125901)Sam Gross2024-10-241-5/+13
| | | | | | | | | * Remove `@suppress_immortalization` decorator * Make suppression flag per-thread instead of per-interpreter * Suppress immortalization in `eval()` to avoid refleaks in three tests (test_datetime.test_roundtrip, test_logging.test_config8_ok, and test_random.test_after_fork). * frozenset() is constant, but not a singleton. When run multiple times, the test could fail due to constant interning.
* gh-123930: Better error for "from imports" when script shadows module (#123929)Shantanu2024-10-241-47/+103
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* gh-124218: Avoid refcount contention on builtins module (GH-125847)Sam Gross2024-10-241-2/+4
| | | | | | | This replaces `_PyEval_BuiltinsFromGlobals` with `_PyDict_LoadBuiltinsFromGlobals`, which returns a new reference instead of a borrowed reference. Internally, the new function uses per-thread reference counting when possible to avoid contention on the refcount fields on the builtins module.
* gh-125842: Fix `sys.exit(0xffff_ffff)` on Windows (#125896)Sam Gross2024-10-241-33/+47
| | | | | | | | | | On Windows, `long` is a signed 32-bit integer so it can't represent `0xffff_ffff` without overflow. Windows exit codes are unsigned 32-bit integers, so if a child process exits with `-1`, it will be represented as `0xffff_ffff`. Also fix a number of other possible cases where `_Py_HandleSystemExit` could return with an exception set, leading to a `SystemError` (or fatal error in debug builds) later on during shutdown.
* gh-125859: Fix crash when `gc.get_objects` is called during GC (#125882)Sam Gross2024-10-241-73/+64
| | | | | | | | | This fixes a crash when `gc.get_objects()` or `gc.get_referrers()` is called during a GC in the free threading build. Switch to `_PyObjectStack` to avoid corrupting the `struct worklist` linked list maintained by the GC. Also, don't return objects that are frozen (`gc.freeze()`) or in the process of being collected to more closely match the behavior of the default build.
* GH-125868: Fix STORE_ATTR_WITH_HINT specialization (GH-125876)Mark Shannon2024-10-243-12/+12
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* gh-125286: Share the Main Refchain With Legacy Interpreters (gh-125709)Eric Snow2024-10-232-4/+16
| | | | | They used to be shared, before 3.12. Returning to sharing them resolves a failure on Py_TRACE_REFS builds. Co-authored-by: Petr Viktorin <encukou@gmail.com>
* gh-125038: Fix crash after genexpr.gi_frame.f_locals manipulations (#125178)Mikhail Efimov2024-10-221-0/+1
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* GH-125521: Remove `if (true)` from generated output to reduce C compiler ↵Mark Shannon2024-10-221-34/+34
| | | | warnings (GH-125700)
* gh-121459: Fix a couple of uses of `PyStackRef_FromPyObjectSteal` (#125711)mpage2024-10-213-12/+18
| | | | | | | | | | | * Fix usage of PyStackRef_FromPyObjectSteal in CALL_TUPLE_1 This was missed in gh-124894 * Fix usage of PyStackRef_FromPyObjectSteal in _CALL_STR_1 This was missed in gh-124894 * Regenerate code
* gh-124218: Use per-thread reference counting for globals and builtins (#125713)Sam Gross2024-10-211-3/+9
| | | | Use per-thread refcounting for the reference from function objects to the globals and builtins dictionaries.
* gh-125703: Correctly honour tracemalloc hooks on more PyDECREF specialized ↵Pablo Galindo Salgado2024-10-211-0/+5
| | | | paths (#125712)
* gh-125207: Fix MSVC 1935 build with JIT (#125209)Michael Droettboom2024-10-181-1/+1
| | | | | | | * gh-125207: Use {0} array initializers * Simplify, as suggested in PR * Revert change to explicitly specify length
* gh-125604: Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-125605)Eric Snow2024-10-189-8/+15
| | | | | | | | | | | | This is essentially a cleanup, moving a handful of API declarations to the header files where they fit best, creating new ones when needed. We do the following: * add pycore_debug_offsets.h and move _Py_DebugOffsets, etc. there * inline struct _getargs_runtime_state and struct _gilstate_runtime_state in _PyRuntimeState * move struct _reftracer_runtime_state to the existing pycore_object_state.h * add pycore_audit.h and move to it _Py_AuditHookEntry , _PySys_Audit(), and _PySys_ClearAuditHooks * add audit.h and cpython/audit.h and move the existing audit-related API there *move the perfmap/trampoline API from cpython/sysmodule.h to cpython/ceval.h, and remove the now-empty cpython/sysmodule.h
* gh-125541: Make Ctrl-C interrupt `threading.Lock.acquire()` on Windows (#125546)Sam Gross2024-10-171-2/+15
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* gh-123153: Fix PGO builds with free-threading on Windows (#125607)Michael Droettboom2024-10-171-6/+14
| | | | | * gh-123153: Fix PGO builds with free-threading * Redo how the #define works
* gh-125217: Turn off optimization around_PyEval_EvalFrameDefault to avoid ↵Michael Droettboom2024-10-161-0/+14
| | | | MSVC crash (#125477)
* gh-124872: Replace enter/exit events with "switched" (#125532)Kirill Podoprigora2024-10-161-10/+21
| | | | | | | | | | | | | | | | | | | | | | | | | Users want to know when the current context switches to a different context object. Right now this happens when and only when a context is entered or exited, so the enter and exit events are synonymous with "switched". However, if the changes proposed for gh-99633 are implemented, the current context will also switch for reasons other than context enter or exit. Since users actually care about context switches and not enter or exit, replace the enter and exit events with a single switched event. The former exit event was emitted just before exiting the context. The new switched event is emitted after the context is exited to match the semantics users expect of an event with a past-tense name. If users need the ability to clean up before the switch takes effect, another event type can be added in the future. It is not added here because YAGNI. I skipped 0 in the enum as a matter of practice. Skipping 0 makes it easier to troubleshoot when code forgets to set zeroed memory, and it aligns with best practices for other tools (e.g., https://protobuf.dev/programming-guides/dos-donts/#unspecified-enum). Co-authored-by: Richard Hansen <rhansen@rhansen.org> Co-authored-by: Victor Stinner <vstinner@python.org>
* gh-124218: Use per-thread refcounts for code objects (#125216)Sam Gross2024-10-154-35/+49
| | | | | | | Use per-thread refcounting for the reference from function objects to their corresponding code object. This can be a source of contention when frequently creating nested functions. Deferred refcounting alone isn't a great fit here because these references are on the heap and may be modified by other libraries.
* gh-124375: Avoid calling `_PyMem_ProcessDelayed` on other thread states ↵Sam Gross2024-10-151-6/+12
| | | | | | | | | | | (#124459) This fixes a crash when running the PyO3 test suite on the free-threaded build. The `qsbr` field is initialized after the `PyThreadState` is added to the interpreter's linked list -- it might still be NULL. Instead, we "steal" the queue of to-be-freed memory blocks. This is always initialized (possibly empty) and protected by the stop the world pause.
* gh-125512: Revert "gh-124872: Replace enter/exit events with "switched" ↵Kirill Podoprigora2024-10-151-21/+10
| | | | (#124776)" (#125513)
* gh-125196: Use PyUnicodeWriter in HAMT (#125458)Victor Stinner2024-10-151-50/+31
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* gh-125234: Make PyInitConfig_Free(NULL) a no-op (#125266)RUANG (Roy James)2024-10-151-0/+3
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* gh-125470: Fix warning in `Python/generated_cases.c.h` (#125471)sobolevn2024-10-143-0/+6
| | | Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
* gh-124872: Replace enter/exit events with "switched" (#124776)Richard Hansen2024-10-141-10/+21
| | | | | | | | | | | | | | | | | | | | | | Users want to know when the current context switches to a different context object. Right now this happens when and only when a context is entered or exited, so the enter and exit events are synonymous with "switched". However, if the changes proposed for gh-99633 are implemented, the current context will also switch for reasons other than context enter or exit. Since users actually care about context switches and not enter or exit, replace the enter and exit events with a single switched event. The former exit event was emitted just before exiting the context. The new switched event is emitted after the context is exited to match the semantics users expect of an event with a past-tense name. If users need the ability to clean up before the switch takes effect, another event type can be added in the future. It is not added here because YAGNI. I skipped 0 in the enum as a matter of practice. Skipping 0 makes it easier to troubleshoot when code forgets to set zeroed memory, and it aligns with best practices for other tools (e.g., https://protobuf.dev/programming-guides/dos-donts/#unspecified-enum).
* GH-125323: Convert DECREF_INPUTS_AND_REUSE_FLOAT into a function that takes ↵Mark Shannon2024-10-144-38/+18
| | | | PyStackRefs. (GH-125439)
* gh-125139: use `_PyRecursiveMutex` in `_thread.RLock` (#125144)Kumar Aditya2024-10-141-3/+28
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* gh-125323: Remove some unsafe Py_DECREFs in bytecodes.c, replacing them with ↵Ken Jin2024-10-143-60/+60
| | | | PyStackRef_CLOSEs (GH-125324)
* gh-125161: return non zero value in pthread_self on wasi (#125303)Kumar Aditya2024-10-131-5/+5
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* gh-124872: Change PyContext_WatchCallback to take PyObject (#124737)Richard Hansen2024-10-121-3/+3
| | | | | The PyContext struct is not intended to be public, and users of the API don't need anything more specific than PyObject. Also see gh-78943.
* gh-124872: Move PyThreadState to first argument for consistency (#124774)Richard Hansen2024-10-121-3/+4
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* gh-111924: use atomics for interp id refcounting (#125321)Kumar Aditya2024-10-121-48/+6
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* gh-125268: Use static string for "1e309" in AST (#125272)Sam Gross2024-10-102-27/+4
| | | | | When formatting the AST as a string, infinite values are replaced by 1e309, which evaluates to infinity. The initialization of this string replacement was not thread-safe in the free threading build.
* GH-125174: Make immortal objects more robust, following design from PEP 683 ↵Mark Shannon2024-10-104-7/+7
| | | | (GH-125251)
* gh-125196: Use PyUnicodeWriter for repr(contextvars.Token) (#125220)Victor Stinner2024-10-091-28/+11
| | | Replace the private _PyUnicodeWriter with the public PyUnicodeWriter.
* gh-125196: Use PyUnicodeWriter in symtable.c (#125199)Victor Stinner2024-10-091-19/+16
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* gh-115999: Refactor `LOAD_GLOBAL` specializations to avoid reloading ↵mpage2024-10-096-40/+242
| | | | | | | | | | | | | | | | | | {globals, builtins} keys (gh-124953) Each of the `LOAD_GLOBAL` specializations is implemented roughly as: 1. Load keys version. 2. Load cached keys version. 3. Deopt if (1) and (2) don't match. 4. Load keys. 5. Load cached index into keys. 6. Load object from (4) at offset from (5). This is not thread-safe in free-threaded builds; the keys object may be replaced in between steps (3) and (4). This change refactors the specializations to avoid reloading the keys object and instead pass the keys object from guards to be consumed by downstream uops.
* gh-115754: Use Py_GetConstant(Py_CONSTANT_EMPTY_STR) (#125194)Victor Stinner2024-10-096-8/+8
| | | | | Replace PyUnicode_New(0, 0), PyUnicode_FromString("") and PyUnicode_FromStringAndSize("", 0) with Py_GetConstant(Py_CONSTANT_EMPTY_STR).
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