Commit Graph

79 Commits

Author SHA1 Message Date
Mark Shannon 76449350b3
GH-91079: Decouple C stack overflow checks from Python recursion checks. (GH-96510) 2022-10-05 01:34:03 +01:00
Mark Shannon c09fa7542c
GH-96237: Allow non-functions as reference-holder in frames. (GH-96238) 2022-08-25 10:16:55 +01:00
Irit Katriel 420f39f457
gh-93678: add _testinternalcapi.optimize_cfg() and test utils for compiler optimization unit tests (GH-96007) 2022-08-24 11:02:53 +01:00
Dennis Sweeney 702e0da000
Fix NULL test in _testinternalcapi (GH-92861) 2022-05-16 21:32:48 -04:00
Mark Shannon f8a2fab212
GH-92239: Make sure that PEP 523 is supported, even when specializing first. (GH-92245) 2022-05-04 09:31:21 -06:00
Mark Dickinson 83a0ef2162
bpo-29882: Fix portability bug introduced in GH-30774 (#30794) 2022-01-23 09:59:34 +00:00
Victor Stinner ea1a54506b
bpo-46303: Move fileutils.h private functions to internal C API (GH-30484)
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.
2022-01-11 11:56:16 +01:00
Steve Dower 99fcf15052
bpo-45582: Port getpath[p].c to Python (GH-29041)
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.
2021-12-03 00:08:42 +00:00
Mark Shannon b931077375
bpo-45753: Make recursion checks more efficient. (GH-29524)
* Uses recursion remaining, instead of recursion depth to speed up check against recursion limit.
2021-11-16 11:01:57 +00:00
Eric Snow 17c61045c5
bpo-45506: Normalize _PyPathConfig.stdlib_dir when calculated. (#29040)
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
2021-10-22 17:20:03 -06:00
Christian Heimes 03e9f5dc75
bpo-43974: Move Py_BUILD_CORE_MODULE into module code (GH-29157)
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>
2021-10-22 15:36:28 +02:00
Victor Stinner 7cdc2a0f4b
pycore_pystate.h no longer redefines PyThreadState_GET() (GH-28921)
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.
2021-10-13 14:09:13 +02:00
Dennis Sweeney 80a2a4ed7d
bpo-38530: Refactor and improve AttributeError suggestions (GH-25776)
- 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>
2021-05-03 16:47:27 +01:00
Victor Stinner 52a327c1cb
bpo-39465: Add pycore_atomic_funcs.h header (GH-20766)
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.
2020-12-23 03:41:08 +01:00
Victor Stinner dc42af8fd1
bpo-42260: PyConfig_Read() only parses argv once (GH-23168)
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.
2020-11-05 18:58:07 +01:00
Victor Stinner f3cb814315
bpo-42260: Add _PyConfig_FromDict() (GH-23167)
* 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().
2020-11-05 18:12:33 +01:00
Victor Stinner 8f42748ded
bpo-29778: test_embed tests the path configuration (GH-21306) 2020-07-08 00:20:37 +02:00
Steve Dower dcbaa1b49c
bpo-29778: Ensure python3.dll is loaded from correct locations when Python is embedded (GH-21297)
Also enables using debug build of `python3_d.dll`
Reference: CVE-2020-15523
2020-07-06 17:32:00 +01:00
Christian Heimes 4901ea9526
bpo-41061: Fix incorrect expressions in hashtable (GH-21028)
Signed-off-by: Christian Heimes <christian@python.org>
2020-06-22 00:41:48 -07:00
Niklas Fiekas 794e7d1ab2
bpo-29782: Consolidate _Py_Bit_Length() (GH-20739)
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.
2020-06-15 14:33:48 +02:00
Victor Stinner c6b292cdee
bpo-29882: Add _Py_popcount32() function (GH-20518)
* 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().
2020-06-08 16:30:33 +02:00
Victor Stinner d2dc827d16
bpo-40602: _Py_hashtable_set() reports rehash failure (GH-20077)
If _Py_hashtable_set() fails to grow the hash table (rehash), it now
fails rather than ignoring the error.
2020-05-14 22:44:32 +02:00
Victor Stinner a482dc500b
bpo-40602: Write unit tests for _Py_hashtable_t (GH-20091)
Cleanup also hashtable.c.
Rename _Py_hashtable_t members:

* Rename entries to nentries
* Rename num_buckets to nbuckets
2020-05-14 21:55:47 +02:00
Hai Shi 5dd21f5d1c
bpo-39849: Enable assertions in _testcapimodule.c and _testinternalcapi.c (GH-19623) 2020-04-21 01:49:13 +09:00
Victor Stinner 1ae035b7e8
bpo-40302: Add pycore_byteswap.h header file (GH-19552)
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.
2020-04-17 17:47:20 +02:00
Victor Stinner 0135598d72
bpo-40241: Add pycore_gc.h header file (GH-19494)
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.
2020-04-13 11:38:42 +02:00
Victor Stinner 3f2f4fefca
bpo-39947: Move get_recursion_depth() to _testinternalcapi (GH-18974)
Move get_recursion_depth() function from _testcapi to
_testinternalcapi to avoid accessing PyThreadState attributes
directly in _testcapi.
2020-03-13 13:07:31 +01:00
Victor Stinner 331a6a56e9
bpo-36763: Implement the PEP 587 (GH-13592)
* 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()
2019-05-27 16:39:22 +02:00
Victor Stinner 23bace26ec
bpo-36635: Add _testinternalcapi module (GH-12841)
Add a new _testinternalcapi module to test the internal C API.

Move _Py_GetConfigsAsDict() function to the internal C API:
_testembed now uses _testinternalcapi to access the function.
2019-04-18 11:37:26 +02:00