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* [3.12] gh-110241: Add missing error check to `record_eval` in ↵Miss Islington (bot)2023-10-021-1/+5
| | | | | | | | `_testinternalcapi` (GH-110242) (#110244) gh-110241: Add missing error check to `record_eval` in `_testinternalcapi` (GH-110242) (cherry picked from commit 4596c76d1a7650fd4650c814dc1d40d664cd8fb4) Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
* [3.12] gh-101524: Only Use Public C-API in the _xxsubinterpreters Module ↵Miss Islington (bot)2023-07-271-1/+1
| | | | | | | | (gh-105258) (gh-107303) The _xxsubinterpreters module was meant to only use public API. Some internal C-API usage snuck in over the last few years (e.g. gh-28969). This fixes that. (cherry picked from commit e6373c0d8b59512aa7f0dea7f3fb162b6ed10fa4) Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
* [3.12] gh-86493: Fix possible leaks in some modules initialization ↵Serhiy Storchaka2023-07-181-2/+2
| | | | | | (GH-106768) (GH-106855) Fix _ssl, _stat, _testinternalcapi, _threadmodule, cmath, math, posix, time. (cherry picked from commit 3e65baee72131b49f4ce8ca2da568a6f2001ce93)
* [3.12] gh-105235: Prevent reading outside buffer during mmap.find() ↵Miss Islington (bot)2023-07-151-0/+114
| | | | | | | | | | | | | | (GH-105252) (#106708) gh-105235: Prevent reading outside buffer during mmap.find() (GH-105252) * Add a special case for s[-m:] == p in _PyBytes_Find * Add tests for _PyBytes_Find * Make sure that start <= end in mmap.find (cherry picked from commit ab86426a3472ab68747815299d390b213793c3d1) Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
* [3.12] gh-104812: Run Pending Calls in any Thread (gh-104813) (gh-105752)Eric Snow2023-06-141-1/+120
| | | | For a while now, pending calls only run in the main thread (in the main interpreter). This PR changes things to allow any thread run a pending call, unless the pending call was explicitly added for the main thread to run. (cherry picked from commit 757b402)
* [3.12] gh-103295: fix stack overwrite on 32-bit in perf map test harness ↵Miss Islington (bot)2023-05-231-4/+9
| | | | | | | | (GH-104811) (#104823) gh-103295: fix stack overwrite on 32-bit in perf map test harness (GH-104811) (cherry picked from commit e0b3078705b271ff278dfbc788c2b061c92a9aa3) Co-authored-by: Carl Meyer <carl@oddbird.net>
* gh-103295: expose API for writing perf map files (#103546)gsallam2023-05-211-0/+27
| | | | | Co-authored-by: Aniket Panse <aniketpanse@fb.com> Co-authored-by: Gregory P. Smith <greg@krypto.org> Co-authored-by: Carl Meyer <carl@oddbird.net>
* gh-104615: don't make unsafe swaps in apply_static_swaps (#104620)Carl Meyer2023-05-181-3/+4
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* GH-96803: Document and test new unstable internal frame API functions ↵Mark Shannon2023-05-181-0/+36
| | | | | | (GH-104211) Weaken contract of PyUnstable_InterpreterFrame_GetCode to return PyObject*.
* gh-97933: (PEP 709) inline list/dict/set comprehensions (#101441)Carl Meyer2023-05-091-0/+2
| | | | Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com> Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* gh-104240: return code unit metadata from codegen (#104300)Irit Katriel2023-05-091-1/+1
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* gh-104240: make _PyCompile_CodeGen support different compilation modes (#104241)Irit Katriel2023-05-071-3/+5
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* gh-99113: Add PyInterpreterConfig.own_gil (gh-104204)Eric Snow2023-05-051-0/+7
| | | | | We also add PyInterpreterState.ceval.own_gil to record if the interpreter actually has its own GIL. Note that for now we don't actually respect own_gil; all interpreters still share the one GIL. However, PyInterpreterState.ceval.own_gil does reflect PyInterpreterConfig.own_gil. That lie is a temporary one that we will fix when the GIL really becomes per-interpreter.
* gh-99113: Add Py_MOD_PER_INTERPRETER_GIL_SUPPORTED (gh-104205)Eric Snow2023-05-051-0/+1
| | | Here we are doing no more than adding the value for Py_mod_multiple_interpreters and using it for stdlib modules. We will start checking for it in gh-104206 (once PyInterpreterState.ceval.own_gil is added in gh-104204).
* gh-87092: Expose assembler to unit tests (#103988)Irit Katriel2023-05-011-1/+64
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* gh-101758: Add a Test For Single-Phase Init Modules in Multiple Interpreters ↵Eric Snow2023-02-151-0/+15
| | | | | | | (gh-101920) The test verifies the behavior of single-phase init modules when loaded in multiple interpreters. https://github.com/python/cpython/issues/101758
* GH-100997: fix refleak in `_testinternalcapi.c` (#101058)Kumar Aditya2023-01-161-0/+1
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* GH-100997: Implement Multi-Phase Init for the _testinternalcapi Module ↵Eric Snow2023-01-121-30/+117
| | | | | | | (gh-100998) _testinternalcapi is an internal module used for testing. https://github.com/python/cpython/issues/100997
* gh-99537: Use Py_SETREF() function in C code (#99656)Victor Stinner2022-11-221-2/+1
| | | | | | | | | | | | | | | Fix potential race condition in code patterns: * Replace "Py_DECREF(var); var = new;" with "Py_SETREF(var, new);" * Replace "Py_XDECREF(var); var = new;" with "Py_XSETREF(var, new);" * Replace "Py_CLEAR(var); var = new;" with "Py_XSETREF(var, new);" Other changes: * Replace "old = var; var = new; Py_DECREF(var)" with "Py_SETREF(var, new);" * Replace "old = var; var = new; Py_XDECREF(var)" with "Py_XSETREF(var, new);" * And remove the "old" variable.
* gh-87092: expose the compiler's codegen to python for unit tests (GH-99111)Irit Katriel2022-11-141-1/+22
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* gh-99300: Use Py_NewRef() in Modules/ directory (#99440)Victor Stinner2022-11-131-2/+1
| | | | Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and Py_XNewRef() in test C files of the Modules/ directory.
* gh-98608: Change _Py_NewInterpreter() to _Py_NewInterpreterFromConfig() ↵Eric Snow2022-10-261-0/+46
| | | | | | | | | | | | | | | | | | | | | | | | | (gh-98609) (see https://github.com/python/cpython/issues/98608) This change does the following: 1. change the argument to a new `_PyInterpreterConfig` struct 2. rename the function to `_Py_NewInterpreterFromConfig()`, inspired by `Py_InitializeFromConfig()` (takes a `_PyInterpreterConfig` instead of `isolated_subinterpreter`) 3. split up the boolean `isolated_subinterpreter` into the corresponding multiple granular settings * allow_fork * allow_subprocess * allow_threads 4. add `PyInterpreterState.feature_flags` to store those settings 5. add a function for checking if a feature is enabled on an opaque `PyInterpreterState *` 6. drop `PyConfig._isolated_interpreter` The existing default (see `Py_NewInterpeter()` and `Py_Initialize*()`) allows fork, subprocess, and threads and the optional "isolated" interpreter (see the `_xxsubinterpreters` module) disables all three. None of that changes here; the defaults are preserved. Note that the given `_PyInterpreterConfig` will not be used outside `_Py_NewInterpreterFromConfig()`, nor preserved. This contrasts with how `PyConfig` is currently preserved, used, and even modified outside `Py_InitializeFromConfig()`. I'd rather just avoid that mess from the start for `_PyInterpreterConfig`. We can preserve it later if we find an actual need. This change allows us to follow up with a number of improvements (e.g. stop disallowing subprocess and support disallowing exec instead). (Note that this PR adds "private" symbols. We'll probably make them public, and add docs, in a separate change.)
* GH-91079: Decouple C stack overflow checks from Python recursion checks. ↵Mark Shannon2022-10-051-3/+1
| | | | (GH-96510)
* GH-96237: Allow non-functions as reference-holder in frames. (GH-96238)Mark Shannon2022-08-251-1/+3
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* gh-93678: add _testinternalcapi.optimize_cfg() and test utils for compiler ↵Irit Katriel2022-08-241-0/+26
| | | | optimization unit tests (GH-96007)
* Fix NULL test in _testinternalcapi (GH-92861)Dennis Sweeney2022-05-171-1/+1
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* GH-92239: Make sure that PEP 523 is supported, even when specializing first. ↵Mark Shannon2022-05-041-1/+36
| | | | (GH-92245)
* bpo-29882: Fix portability bug introduced in GH-30774 (#30794)Mark Dickinson2022-01-231-0/+1
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* bpo-46303: Move fileutils.h private functions to internal C API (GH-30484)Victor Stinner2022-01-111-0/+94
| | | | | | | | | | Move almost all private functions of Include/cpython/fileutils.h to the internal C API Include/internal/pycore_fileutils.h. Only keep _Py_fopen_obj() in Include/cpython/fileutils.h, since it's used by _testcapi which must not use the internal C API. Move EncodeLocaleEx() and DecodeLocaleEx() functions from _testcapi to _testinternalcapi, since the C API moved to the internal C API.
* bpo-45582: Port getpath[p].c to Python (GH-29041)Steve Dower2021-12-031-8/+19
| | | | | The getpath.py file is frozen at build time and executed as code over a namespace. It is never imported, nor is it meant to be importable or reusable. However, it should be easier to read, modify, and patch than the previous code. This commit attempts to preserve every previously tested quirk, but these may be changed in the future to better align platforms.
* bpo-45753: Make recursion checks more efficient. (GH-29524)Mark Shannon2021-11-161-1/+2
| | | | * Uses recursion remaining, instead of recursion depth to speed up check against recursion limit.
* bpo-45506: Normalize _PyPathConfig.stdlib_dir when calculated. (#29040)Eric Snow2021-10-221-0/+24
| | | | | The recently added PyConfig.stdlib_dir was being set with ".." entries. When __file__ was added for from modules this caused a problem on out-of-tree builds. This PR fixes that by normalizing "stdlib_dir" when it is calculated in getpath.c. https://bugs.python.org/issue45506
* bpo-43974: Move Py_BUILD_CORE_MODULE into module code (GH-29157)Christian Heimes2021-10-221-2/+2
| | | | | | | | | | | | | | setup.py no longer defines Py_BUILD_CORE_MODULE. Instead every module defines the macro before #include "Python.h" unless Py_BUILD_CORE_BUILTIN is already defined. Py_BUILD_CORE_BUILTIN is defined for every module that is built by Modules/Setup. The PR also simplifies Modules/Setup. Makefile and makesetup already define Py_BUILD_CORE_BUILTIN and include Modules/internal for us. Signed-off-by: Christian Heimes <christian@python.org>
* pycore_pystate.h no longer redefines PyThreadState_GET() (GH-28921)Victor Stinner2021-10-131-2/+3
| | | | | | | | | | | | | | | | | | | | | | Redefining the PyThreadState_GET() macro in pycore_pystate.h is useless since it doesn't affect files not including it. Either use _PyThreadState_GET() directly, or don't use pycore_pystate.h internal C API. For example, the _testcapi extension don't use the internal C API, but use the public PyThreadState_Get() function instead. Replace PyThreadState_Get() with _PyThreadState_GET(). The _PyThreadState_GET() macro is more efficient than PyThreadState_Get() and PyThreadState_GET() function calls which call fail with a fatal Python error. posixmodule.c and _ctypes extension now include <windows.h> before pycore header files (like pycore_call.h). _PyTraceback_Add() now uses _PyErr_Fetch()/_PyErr_Restore() instead of PyErr_Fetch()/PyErr_Restore(). The _decimal and _xxsubinterpreters extensions are now built with the Py_BUILD_CORE_MODULE macro defined to get access to the internal C API.
* bpo-38530: Refactor and improve AttributeError suggestions (GH-25776)Dennis Sweeney2021-05-031-0/+87
| | | | | | | | | | | | | | | | | | | | - Make case-swaps half the cost of any other edit - Refactor Levenshtein code to not use memory allocator, and to bail early on no match. - Add comments to Levenshtein distance code - Add test cases for Levenshtein distance behind a debug macro - Set threshold to `(name_size + item_size + 3) * MOVE_COST / 6`. - Reasoning: similar to `difflib.SequenceMatcher.ratio()` >= 2/3: ``` "Multiset Jaccard similarity" >= 2/3 matching letters / total letters >= 2/3 (name_size - distance + item_size - distance) / (name_size + item_size) >= 2/3 1 - (2*distance) / (name_size + item_size) >= 2/3 1/3 >= (2*distance) / (name_size + item_size) (name_size + item_size) / 6 >= distance With rounding: (name_size + item_size + 3) // 6 >= distance ``` Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* bpo-39465: Add pycore_atomic_funcs.h header (GH-20766)Victor Stinner2020-12-231-0/+13
| | | | | | Add pycore_atomic_funcs.h internal header file: similar to pycore_atomic.h but don't require to declare variables as atomic. Add _Py_atomic_size_get() and _Py_atomic_size_set() functions.
* bpo-42260: PyConfig_Read() only parses argv once (GH-23168)Victor Stinner2020-11-051-3/+6
| | | | | | | | | | | | The PyConfig_Read() function now only parses PyConfig.argv arguments once: PyConfig.parse_argv is set to 2 after arguments are parsed. Since Python arguments are strippped from PyConfig.argv, parsing arguments twice would parse the application options as Python options. * Rework the PyConfig documentation. * Fix _testinternalcapi.set_config() error handling. * SetConfigTests no longer needs parse_argv=0 when restoring the old configuration.
* bpo-42260: Add _PyConfig_FromDict() (GH-23167)Victor Stinner2020-11-051-2/+37
| | | | | | | * Rename config_as_dict() to _PyConfig_AsDict(). * Add 'module_search_paths_set' to _PyConfig_AsDict(). * Add _PyConfig_FromDict(). * Add get_config() and set_config() to _testinternalcapi. * Add config_check_consistency().
* bpo-29778: test_embed tests the path configuration (GH-21306)Victor Stinner2020-07-071-44/+1
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* bpo-29778: Ensure python3.dll is loaded from correct locations when Python ↵Steve Dower2020-07-061-1/+44
| | | | | | is embedded (GH-21297) Also enables using debug build of `python3_d.dll` Reference: CVE-2020-15523
* bpo-41061: Fix incorrect expressions in hashtable (GH-21028)Christian Heimes2020-06-221-2/+2
| | | Signed-off-by: Christian Heimes <christian@python.org>
* bpo-29782: Consolidate _Py_Bit_Length() (GH-20739)Niklas Fiekas2020-06-151-0/+40
| | | | | | | | | | In GH-2866, _Py_Bit_Length() was added to pymath.h for lack of a better location. GH-20518 added a more appropriate header file for bit utilities. It also shows how to properly use intrinsics. This allows reconsidering bpo-29782. * Move the function to the new header. * Changed return type to match __builtin_clzl() and reviewed usage. * Use intrinsics where available. * Pick a fallback implementation suitable for inlining.
* bpo-29882: Add _Py_popcount32() function (GH-20518)Victor Stinner2020-06-081-1/+41
| | | | | | * Rename pycore_byteswap.h to pycore_bitutils.h. * Move popcount_digit() to pycore_bitutils.h as _Py_popcount32(). * _Py_popcount32() uses GCC and clang builtin function if available. * Add unit tests to _Py_popcount32().
* bpo-40602: _Py_hashtable_set() reports rehash failure (GH-20077)Victor Stinner2020-05-141-5/+9
| | | | If _Py_hashtable_set() fails to grow the hash table (rehash), it now fails rather than ignoring the error.
* bpo-40602: Write unit tests for _Py_hashtable_t (GH-20091)Victor Stinner2020-05-141-0/+88
| | | | | | | Cleanup also hashtable.c. Rename _Py_hashtable_t members: * Rename entries to nentries * Rename num_buckets to nbuckets
* bpo-39849: Enable assertions in _testcapimodule.c and _testinternalcapi.c ↵Hai Shi2020-04-201-0/+3
| | | | (GH-19623)
* bpo-40302: Add pycore_byteswap.h header file (GH-19552)Victor Stinner2020-04-171-1/+31
| | | | | | | | | | | | | | Add a new internal pycore_byteswap.h header file with the following functions: * _Py_bswap16() * _Py_bswap32() * _Py_bswap64() Use these functions in _ctypes, sha256 and sha512 modules, and also use in the UTF-32 encoder. sha256, sha512 and _ctypes modules are now built with the internal C API.
* bpo-40241: Add pycore_gc.h header file (GH-19494)Victor Stinner2020-04-131-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | Move the PyGC_Head structure and the following private macros to the internal C API: * _PyGCHead_FINALIZED() * _PyGCHead_NEXT() * _PyGCHead_PREV() * _PyGCHead_SET_FINALIZED() * _PyGCHead_SET_NEXT() * _PyGCHead_SET_PREV() * _PyGC_FINALIZED() * _PyGC_PREV_MASK * _PyGC_PREV_MASK_COLLECTING * _PyGC_PREV_MASK_FINALIZED * _PyGC_PREV_SHIFT * _PyGC_SET_FINALIZED() * _PyObject_GC_IS_TRACKED() * _PyObject_GC_MAY_BE_TRACKED() * _Py_AS_GC(o) Keep the private _PyGC_FINALIZED() macro in the public C API for backward compatibility with Python 3.8: make it an alias to the new PyObject_GC_IsFinalized() function. Move the SIZEOF_PYGC_HEAD constant from _testcapi module to _testinternalcapi module.
* bpo-39947: Move get_recursion_depth() to _testinternalcapi (GH-18974)Victor Stinner2020-03-131-1/+12
| | | | | Move get_recursion_depth() function from _testcapi to _testinternalcapi to avoid accessing PyThreadState attributes directly in _testcapi.
* bpo-36763: Implement the PEP 587 (GH-13592)Victor Stinner2019-05-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add a whole new documentation page: "Python Initialization Configuration" * PyWideStringList_Append() return type is now PyStatus, instead of int * PyInterpreterState_New() now calls PyConfig_Clear() if PyConfig_InitPythonConfig() fails. * Rename files: * Python/coreconfig.c => Python/initconfig.c * Include/cpython/coreconfig.h => Include/cpython/initconfig.h * Include/internal/: pycore_coreconfig.h => pycore_initconfig.h * Rename structures * _PyCoreConfig => PyConfig * _PyPreConfig => PyPreConfig * _PyInitError => PyStatus * _PyWstrList => PyWideStringList * Rename PyConfig fields: * use_module_search_paths => module_search_paths_set * module_search_path_env => pythonpath_env * Rename PyStatus field: _func => func * PyInterpreterState: rename core_config field to config * Rename macros and functions: * _PyCoreConfig_SetArgv() => PyConfig_SetBytesArgv() * _PyCoreConfig_SetWideArgv() => PyConfig_SetArgv() * _PyCoreConfig_DecodeLocale() => PyConfig_SetBytesString() * _PyInitError_Failed() => PyStatus_Exception() * _Py_INIT_ERROR_TYPE_xxx enums => _PyStatus_TYPE_xxx * _Py_UnixMain() => Py_BytesMain() * _Py_ExitInitError() => Py_ExitStatusException() * _Py_PreInitializeFromArgs() => Py_PreInitializeFromBytesArgs() * _Py_PreInitializeFromWideArgs() => Py_PreInitializeFromArgs() * _Py_PreInitialize() => Py_PreInitialize() * _Py_RunMain() => Py_RunMain() * _Py_InitializeFromConfig() => Py_InitializeFromConfig() * _Py_INIT_XXX() => _PyStatus_XXX() * _Py_INIT_FAILED() => _PyStatus_EXCEPTION() * Rename 'err' PyStatus variables to 'status' * Convert RUN_CODE() macro to config_run_code() static inline function * Remove functions: * _Py_InitializeFromArgs() * _Py_InitializeFromWideArgs() * _PyInterpreterState_GetCoreConfig()
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