Commit Graph

144 Commits

Author SHA1 Message Date
Ammar Askar 4823d9a512
bpo-43950: Add option to opt-out of PEP-657 (GH-27023)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com>
Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
2021-07-07 20:07:12 +01:00
Gabriele N. Tornetta 2f180ce2cb
bpo-44530: Add co_qualname field to PyCodeObject (GH-26941) 2021-07-07 12:21:51 +01:00
Pablo Galindo 98eee94421
bpo-43950: Add code.co_positions (PEP 657) (GH-26955)
This PR is part of PEP 657 and augments the compiler to emit ending
line numbers as well as starting and ending columns from the AST
into compiled code objects. This allows bytecodes to be correlated
to the exact source code ranges that generated them.

This information is made available through the following public APIs:

* The `co_positions` method on code objects.
* The C API function `PyCode_Addr2Location`.

Co-authored-by: Batuhan Taskaya <isidentical@gmail.com>
Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
2021-07-02 15:10:11 +01:00
Batuhan Taskaya 1b28187a0e
bpo-44313: generate LOAD_ATTR/CALL_FUNCTION for top-level imported objects (GH-26677) 2021-06-30 23:53:36 +01:00
Victor Stinner 48e3a1d95a
bpo-44434: Remove useless calls to PyThread_exit_thread() (GH-26943)
Remove useless calls to PyThread_exit_thread() in two unit tests of
_testcapi and _testembed modules.

Co-authored-by: Alexey Izbyshev <izbyshev@ispras.ru>
2021-06-29 02:03:30 +02:00
Guido van Rossum 769d7d0c66
bpo-43693 Get rid of CO_NOFREE -- it's unused (GH-26839)
All uses of this flag are either setting it
or in doc or tests for it. So we should be
able to get rid of it completely.
2021-06-23 09:51:44 -07:00
Victor Stinner 489699ca05
bpo-44441: _PyImport_Fini2() resets PyImport_Inittab (GH-26874)
Py_RunMain() now resets PyImport_Inittab to its initial value at
exit. It must be possible to call PyImport_AppendInittab() or
PyImport_ExtendInittab() at each Python initialization.
2021-06-23 14:13:27 +02:00
Guido van Rossum 355f5dd36a
bpo-43693: Turn localspluskinds into an object (GH-26749)
Managing it as a bare pointer to malloc'ed bytes is just too awkward in a few places.
2021-06-21 13:53:04 -07:00
Eric Snow 2ab27c4af4
bpo-43693: Un-revert commits 2c1e258 and b2bf2bc. (gh-26577)
These were reverted in gh-26530 (commit 17c4edc) due to refleaks.

* 2c1e258 - Compute deref offsets in compiler (gh-25152)
* b2bf2bc - Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)

This change fixes the refleaks.

https://bugs.python.org/issue43693
2021-06-07 12:22:26 -06:00
Pablo Galindo 17c4edc4e0
bpo-43693: Revert commits 2c1e2583fd and b2bf2bc1ec (GH-26530)
* Revert "bpo-43693: Compute deref offsets in compiler (gh-25152)"

This reverts commit b2bf2bc1ec.

* Revert "bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)"

This reverts commit 2c1e2583fd.

These two commits are breaking the refleak buildbots.
2021-06-04 17:51:05 +01:00
Eric Snow 2c1e2583fd
bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)
A number of places in the code base (notably ceval.c and frameobject.c) rely on mapping variable names to indices in the frame "locals plus" array (AKA fast locals), and thus opargs.  Currently the compiler indirectly encodes that information on the code object as the tuples co_varnames, co_cellvars, and co_freevars.  At runtime the dependent code must calculate the proper mapping from those, which isn't ideal and impacts performance-sensitive sections.  This is something we can easily address in the compiler instead.

This change addresses the situation by replacing internal use of co_varnames, etc. with a single combined tuple of names in locals-plus order, along with a minimal array mapping each to its kind (local vs. cell vs. free).  These two new PyCodeObject fields, co_fastlocalnames and co_fastllocalkinds, are not exposed to Python code for now, but co_varnames, etc. are still available with the same values as before (though computed lazily).

Aside from the (mild) performance impact, there are a number of other benefits:

* there's now a clear, direct relationship between locals-plus and variables
* code that relies on the locals-plus-to-name mapping is simpler
* marshaled code objects are smaller and serialize/de-serialize faster

Also note that we can take this approach further by expanding the possible values in co_fastlocalkinds to include specific argument types (e.g. positional-only, kwargs).  Doing so would allow further speed-ups in _PyEval_MakeFrameVector(), which is where args get unpacked into the locals-plus array.  It would also allow us to shrink marshaled code objects even further.

https://bugs.python.org/issue43693
2021-06-03 10:28:27 -06:00
Eric Snow 9f494d4929
bpo-43693: Add _PyCode_New(). (gh-26375)
This is an internal-only API that helps us manage the many values used to create a code object.

https://bugs.python.org/issue43693
2021-05-27 09:54:34 -06:00
Victor Stinner 58a993957a
bpo-44131: Py_FrozenMain() uses PyConfig_SetBytesArgv() (GH-26201)
Moreover, Py_FrozenMain() relies on Py_InitializeFromConfig() to
handle the PYTHONUNBUFFERED environment variable and configure C
stdio streams like stdout (make the stream unbuffered).
2021-05-20 12:08:05 +02:00
Victor Stinner 834498e178
bpo-44131: Fix Makefile for test_frozenmain (GH-26203)
Remove Programs/test_frozenmain.h Makefile target: it ran make
in parallel which caused build errors on LTO+PGO builds.
2021-05-18 08:40:37 +02:00
Victor Stinner eaede0ded7
bpo-44131: Test Py_FrozenMain() (GH-26126)
* Add test_frozenmain to test_embed
* Add Programs/test_frozenmain.py
* Add Programs/freeze_test_frozenmain.py
* Add Programs/test_frozenmain.h
* Add make regen-test-frozenmain
* Add test_frozenmain command to Programs/_testembed
* _testembed.c: add error(msg) function
2021-05-17 23:48:35 +02:00
Victor Stinner 6cd0446ef7
bpo-44113: Deprecate old functions to config Python init (GH-26060)
Deprecate the following functions to configure the Python
initialization:

* PySys_AddWarnOption()
* PySys_AddWarnOptionUnicode()
* PySys_AddXOption()
* PySys_HasWarnOptions()
* Py_SetPath()
* Py_SetProgramName()
* Py_SetPythonHome()
* Py_SetStandardStreamEncoding()
* _Py_SetProgramFullPath()

Use the new PyConfig API of the Python Initialization Configuration
instead (PEP 587).
2021-05-12 23:59:25 +02:00
Victor Stinner 307745aa42
bpo-43445: Add frozen modules to sys.stdlib_module_names (GH-24798)
Add frozen modules to sys.stdlib_module_names. For example, add
"_frozen_importlib" and "_frozen_importlib_external" names.

Add "list_frozen" command to Programs/_testembed.
2021-03-10 11:14:07 +01:00
Victor Stinner 11d13e83ab
bpo-42882: Add test_embed.test_unicode_id_init() (GH-24198)
Test that _PyUnicode_FromId() works when Python is initialized
multiples times.
2021-01-12 11:26:26 +01:00
Victor Stinner 9e1b828265
bpo-42260: Compute the path config in the main init (GH-23211)
The path configuration is now computed in the "main" initialization.
The core initialization no longer computes it.

* Add _PyConfig_Read() function to read the configuration without
  computing the path configuration.
* pyinit_core() no longer computes the path configuration: it is now
  computed by init_interp_main().
* The path configuration output members of PyConfig are now optional:

  * executable
  * base_executable
  * prefix
  * base_prefix
  * exec_prefix
  * base_exec_prefix

* _PySys_UpdateConfig() now skips NULL strings in PyConfig.
* _testembed: Rename test_set_config() to test_init_set_config() for
  consistency with other tests.
2020-11-10 13:21:52 +01:00
Victor Stinner 048a35659a
bpo-42260: Add _PyInterpreterState_SetConfig() (GH-23158)
* Inline _PyInterpreterState_SetConfig(): replace it with
  _PyConfig_Copy().
* Add _PyErr_SetFromPyStatus()
* Add _PyInterpreterState_GetConfigCopy()
* Add a new _PyInterpreterState_SetConfig() function.
* Add an unit which gets, modifies, and sets the config.
2020-11-05 00:45:56 +01:00
Konge daa0fe03a5
bpo-41162: Clear audit hooks later during finalization (GH-21222) 2020-07-03 22:06:46 +01:00
Pablo Galindo 436b648910
bpo-40939: Remove some extra references to PYTHONOLDPARSER (GH-20815)
Automerge-Triggered-By: @pablogsal
2020-06-11 10:08:05 -07:00
Pablo Galindo 1ed83adb0e
bpo-40939: Remove the old parser (GH-20768)
This commit removes the old parser, the deprecated parser module, the old parser compatibility flags and environment variables and all associated support code and documentation.
2020-06-11 17:30:46 +01:00
Victor Stinner e81f6e687d
bpo-40910: Export Py_GetArgcArgv() function (GH-20721)
Export explicitly the Py_GetArgcArgv() function to the C API and
document the function. Previously, it was exported implicitly which
no longer works since Python is built with -fvisibility=hidden.

* Add PyConfig._orig_argv member.
* Py_InitializeFromConfig() no longer calls _PyConfig_Write() twice.
* PyConfig_Read() no longer initializes Py_GetArgcArgv(): it is now
  _PyConfig_Write() responsibility.
* _PyConfig_Write() result type becomes PyStatus instead of void.
* Write an unit test on Py_GetArgcArgv().
2020-06-08 18:12:59 +02:00
Sandro Mani 8f023a2f66
bpo-40854: Allow overriding sys.platlibdir via PYTHONPLATLIBDIR env-var (GH-20605) 2020-06-08 17:28:11 +02:00
Victor Stinner 252346acd9
bpo-40453: Add PyConfig._isolated_subinterpreter (GH-19820)
An isolated subinterpreter cannot spawn threads, spawn a child
process or call os.fork().

* Add private _Py_NewInterpreter(isolated_subinterpreter) function.
* Add isolated=True keyword-only parameter to
  _xxsubinterpreters.create().
* Allow again os.fork() in "non-isolated" subinterpreters.
2020-05-01 11:33:44 +02:00
Victor Stinner 1def7754b7
bpo-40334: Rename PyConfig.use_peg to _use_peg_parser (GH-19670)
* Rename PyConfig.use_peg to _use_peg_parser
* Document PyConfig._use_peg_parser and mark it a deprecated
* Mark -X oldparser option and PYTHONOLDPARSER env var as deprecated
  in the documentation.
* Add use_old_parser() and skip_if_new_parser() to test.support
* Remove sys.flags.use_peg: use_old_parser() uses
  _testinternalcapi.get_configs() instead.
* Enhance test_embed tests
* subprocess._args_from_interpreter_flags() copies -X oldparser
2020-04-23 03:03:24 +02:00
Pablo Galindo c5fc156852
bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)
Co-authored-by: Guido van Rossum <guido@python.org>
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
2020-04-22 23:29:27 +01:00
Victor Stinner 4f98f465f1
bpo-40268: Remove unused imports in pylifecycle.c (GH-19533)
Remove unused imports in files:

* initconfig.c
* main.c
* preconfig.h
* pylifecycle.c
* python.c
* pythonrun.c
2020-04-15 04:01:58 +02:00
Victor Stinner 62183b8d6d
bpo-40268: Remove explicit pythread.h includes (#19529)
Remove explicit pythread.h includes: it is always included
by Python.h.
2020-04-15 02:04:42 +02:00
Victor Stinner e5014be049
bpo-40268: Remove a few pycore_pystate.h includes (GH-19510) 2020-04-14 17:52:15 +02:00
Victor Stinner 3225b9f973
bpo-39877: Remove useless PyEval_InitThreads() calls (GH-18883)
Py_Initialize() calls PyEval_InitThreads() since Python 3.7. It's no
longer needed to call it explicitly.
2020-03-09 20:56:57 +01:00
Victor Stinner c6e5c1123b
bpo-39489: Remove COUNT_ALLOCS special build (GH-18259)
Remove:

* COUNT_ALLOCS macro
* sys.getcounts() function
* SHOW_ALLOC_COUNT code in listobject.c
* SHOW_TRACK_COUNT code in tupleobject.c
* PyConfig.show_alloc_count field
* -X showalloccount command line option
* @test.support.requires_type_collecting decorator
2020-02-03 15:17:15 +01:00
Victor Stinner 8462a4936b
bpo-38304: PyConfig_InitPythonConfig() cannot fail anymore (GH-16509)
PyConfig_InitPythonConfig() and PyConfig_InitIsolatedConfig() no
longer return PyStatus: they cannot fail anymore.
2019-10-01 12:06:16 +02:00
Victor Stinner 3c30a76f3d
bpo-38304: Remove PyConfig.struct_size (GH-16500) (GH-16508)
For now, we'll rely on the fact that the config structures aren't covered by the stable ABI.

We may revisit this in the future if we further explore the idea of offering a stable embedding API.

(cherry picked from commit bdace21b76)
2019-10-01 10:56:37 +02:00
Victor Stinner fb4ae152a9
bpo-38317: Fix PyConfig.warnoptions priority (GH-16478)
Fix warnings options priority: PyConfig.warnoptions has the highest
priority, as stated in the PEP 587.

* Document options order in PyConfig.warnoptions documentation.
* Make PyWideStringList_INIT macro private: replace "Py" prefix
  with "_Py".
* test_embed: add test_init_warnoptions().
2019-09-30 01:40:17 +02:00
Victor Stinner 441b10cf28
bpo-38304: Add PyConfig.struct_size (GH-16451)
Add a new struct_size field to PyPreConfig and PyConfig structures to
allow to modify these structures in the future without breaking the
backward compatibility.

* Replace private _config_version field with public struct_size field
  in PyPreConfig and PyConfig.
* Public PyPreConfig_InitIsolatedConfig() and
  PyPreConfig_InitPythonConfig()
  return type becomes PyStatus, instead of void.
* Internal _PyConfig_InitCompatConfig(),
  _PyPreConfig_InitCompatConfig(), _PyPreConfig_InitFromConfig(),
  _PyPreConfig_InitFromPreConfig() return type becomes PyStatus,
  instead of void.
* Remove _Py_CONFIG_VERSION
* Update the Initialization Configuration documentation.
2019-09-28 04:28:35 +02:00
Victor Stinner 49d99f01e6
bpo-38234: Fix test_embed.test_init_setpath_config() on FreeBSD (GH-16406)
Explicitly preinitializes with a Python preconfiguration to avoid
Py_SetPath() implicit preinitialization with a compat
preconfiguration.

Fix also test_init_setpath() and test_init_setpythonhome() on macOS:
use self.test_exe as the executable (and base_executable), rather
than shutil.which('python3').
2019-09-26 04:01:49 +02:00
Victor Stinner 8bf39b606e
bpo-38234: Add test_init_setpath_config() to test_embed (GH-16402)
* Add test_embed.test_init_setpath_config(): test Py_SetPath()
  with PyConfig.
* test_init_setpath() and test_init_setpythonhome() no longer call
  Py_SetProgramName(), but use the default program name.
* _PyPathConfig: isolated, site_import  and base_executable
  fields are now only available on Windows.
* If executable is set explicitly in the configuration, ignore
  calculated base_executable: _PyConfig_InitPathConfig() copies
  executable to base_executable.
* Complete path config documentation.
2019-09-26 02:22:35 +02:00
Victor Stinner bb6bf7d342
bpo-38234: Add tests for Python init path config (GH-16358) 2019-09-24 18:21:02 +02:00
Victor Stinner 120b707a6d
bpo-36763: PyConfig_Read() handles PySys_AddXOption() (GH-15431)
PyConfig_Read() is now responsible to handle early calls to
PySys_AddXOption() and PySys_AddWarnOption().

Options added by PySys_AddXOption() are now handled the same way than
PyConfig.xoptions and command line -X options.

For example, PySys_AddXOption(L"faulthandler") enables faulthandler
as expected.
2019-08-23 18:03:08 +01:00
Victor Stinner 3842f2997f
bpo-36763: Implement PyWideStringList_Insert() of PEP 587 (GH-15423) 2019-08-23 16:57:54 +01:00
Steve Dower e226e83d36
bpo-37363: Add audit events on startup for the run commands (GH-14524) 2019-07-01 16:03:53 -07:00
Victor Stinner 67310023f2
bpo-36763: Use PyConfig_Clear() (GH-14445)
Stop using "static PyConfig", PyConfig must now always use
dynamically allocated strings: use PyConfig_SetString(),
PyConfig_SetArgv() and PyConfig_Clear().
2019-07-01 19:52:45 +02:00
Victor Stinner 013a18a651
bpo-36763, _testembed: enable assert() in release mode (GH-13857) 2019-06-06 14:25:18 +02:00
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
Pablo Galindo cccc11b38e
Fix warning in _testembed.c (GH-13533) 2019-05-24 00:53:21 +01:00
Steve Dower b82e17e626
bpo-36842: Implement PEP 578 (GH-12613)
Adds sys.audit, sys.addaudithook, io.open_code, and associated C APIs.
2019-05-23 08:45:22 -07:00
Victor Stinner 20e1e2582e
bpo-36763: Fix _PyPreConfig_InitCompatConfig() utf8_mode (GH-13518)
* _PyPreConfig_InitCompatConfig() sets utf8_mode to 0.
* Change Py_UTF8Mode default value to 0.
* Fix _PyPreConfig_Copy(): copy also _config_init attrbibute.
* _PyPreConfig_AsDict() exports _config_init
* Fix _PyPreConfig_GetGlobalConfig(): use Py_UTF8Mode if it's greater
  than 0, even if utf8_mode >= 0.
* Add unit tests on environment variables using Python API.
2019-05-23 04:12:27 +02:00
Victor Stinner 5edcf26358
bpo-36763: Rename private Python initialization functions (GH-13511)
* Rename private C functions:

  * _Py_Initialize_ReconfigureCore => pyinit_core_reconfigure
  * _Py_InitializeCore_impl => pyinit_core_config
  * _Py_InitializeCore = > pyinit_core
  * _Py_InitializeMainInterpreter => pyinit_main
  * init_python => pyinit_python

* Rename _testembed.c commands: add "test_" prefix.
2019-05-23 00:57:57 +02:00