Commit Graph

236 Commits

Author SHA1 Message Date
Victor Stinner 3f12ac18a4
bpo-39164: Fix compiler warning in PyErr_GetExcInfo() (GH-18010)
The function has no return value.
2020-01-15 11:23:25 +01:00
Julien Danjou 3430c55417 bpo-39164: Add private _PyErr_GetExcInfo() function (GH-17752)
This adds a new function named _PyErr_GetExcInfo() that is a variation of the
original PyErr_GetExcInfo() taking a PyThreadState as its first argument.
That function allows to retrieve the exceptions information of any Python
thread -- not only the current one.
2020-01-13 17:30:14 +01:00
Steve Dower bea33f5e1d
bpo-38920: Add audit hooks for when sys.excepthook and sys.unraisable hooks are invoked (GH-17392)
Also fixes some potential segfaults in unraisable hook handling.
2019-11-28 08:46:11 -08:00
Victor Stinner d12d0e7c0f
bpo-38733: PyErr_Occurred() caller must hold the GIL (GH-17080)
bpo-3605, bpo-38733: Optimize _PyErr_Occurred(): remove "tstate ==
NULL" test.

Py_FatalError() no longer calls PyErr_Occurred() if called without
holding the GIL. So PyErr_Occurred() no longer has to support
tstate==NULL case.

_Py_CheckFunctionResult(): use directly _PyErr_Occurred() to avoid
explicit "!= NULL" test.
2019-11-07 12:42:07 +01:00
Victor Stinner 1726909094
bpo-38644: Pass tstate to _Py_CheckFunctionResult() (GH-17050)
* Add tstate parameter to _Py_CheckFunctionResult()
* Add _PyErr_FormatFromCauseTstate()
* Replace PyErr_XXX(...) with _PyErr_XXX(state, ...)
2019-11-05 01:22:12 +01:00
Jeroen Demeyer 762f93ff2e bpo-37337: Add _PyObject_CallMethodNoArgs() (GH-14267) 2019-07-08 17:19:25 +09:00
Jeroen Demeyer 196a530e00 bpo-37483: add _PyObject_CallOneArg() function (#14558) 2019-07-04 19:31:34 +09:00
Victor Stinner 838f26402d
bpo-36710: Pass explicitly tstate in sysmodule.c (GH-14060)
* Replace global var Py_VerboseFlag with interp->config.verbose.
* Add _PyErr_NoMemory(tstate) function.
* Add tstate parameter to _PyEval_SetCoroutineOriginTrackingDepth()
  and move the function to the internal API.
* Replace _PySys_InitMain(runtime, interp)
  with _PySys_InitMain(runtime, tstate).
2019-06-13 22:41:23 +02:00
Victor Stinner a85a1d337d
bpo-36829: sys.excepthook and sys.unraisablehook flush (GH-13620)
sys.excepthook() and sys.unraisablehook() now explicitly flush the
file (usually sys.stderr).

If file.flush() fails, sys.excepthook() silently ignores the error,
whereas sys.unraisablehook() logs the new exception.
2019-05-28 16:01:17 +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
Victor Stinner 71c52e3048
bpo-36829: Add _PyErr_WriteUnraisableMsg() (GH-13488)
* sys.unraisablehook: add 'err_msg' field to UnraisableHookArgs.
* Use _PyErr_WriteUnraisableMsg() in _ctypes _DictRemover_call()
  and gc delete_garbage().
2019-05-27 08:57:14 +02:00
Victor Stinner 438a12dd9d
bpo-36710: Add tstate parameter in ceval.c (GH-13547)
* Fix a possible reference leak in _PyErr_Print() if exception
  is NULL.
* PyErr_BadInternalCall(): replace PyErr_Format() with _PyErr_SetString().
* Add pycore_pyerrors.h header file.
* New functions:

  * _PyErr_Clear()
  * _PyErr_Fetch()
  * _PyErr_Print()
  * _PyErr_Restore()
  * _PyErr_SetObject()
  * _PyErr_SetString()

* Add 'tstate' parameter to _PyEval_AddPendingCall().
2019-05-24 17:01:38 +02:00
Victor Stinner b4bdecd0fc
bpo-36710: Add tstate parameter in errors.c (GH-13540)
Add 'PyThreadState *tstate' parameter to errors.c functions to avoid
relying on global variables (indirectly on _PyRuntime).
2019-05-24 13:44:24 +02:00
Victor Stinner df22c03b93
bpo-36829: PyErr_WriteUnraisable() normalizes exception (GH-13507)
PyErr_WriteUnraisable() now creates a traceback object if there is no
current traceback. Moreover, call PyErr_NormalizeException() and
PyException_SetTraceback() to normalize the exception value. Ignore
silently any error.
2019-05-23 01:00:58 +02:00
Victor Stinner ef9d9b6312
bpo-36829: Add sys.unraisablehook() (GH-13187)
Add new sys.unraisablehook() function which can be overridden to
control how "unraisable exceptions" are handled. It is called when an
exception has occurred but there is no way for Python to handle it.
For example, when a destructor raises an exception or during garbage
collection (gc.collect()).

Changes:

* Add an internal UnraisableHookArgs type used to pass arguments to
  sys.unraisablehook.
* Add _PyErr_WriteUnraisableDefaultHook().
* The default hook now ignores exception on writing the traceback.
* test_sys now uses unittest.main() to automatically discover tests:
  remove test_main().
* Add _PyErr_Init().
* Fix PyErr_WriteUnraisable(): hold a strong reference to sys.stderr
  while using it
2019-05-22 11:28:22 +02:00
Serhiy Storchaka a24107b04c
bpo-35459: Use PyDict_GetItemWithError() instead of PyDict_GetItem(). (GH-11112) 2019-02-25 17:59:46 +02:00
Victor Stinner 621cebe81b
bpo-35081: Rename internal headers (GH-10275)
Rename Include/internal/ headers:

* pycore_hash.h -> pycore_pyhash.h
* pycore_lifecycle.h -> pycore_pylifecycle.h
* pycore_mem.h -> pycore_pymem.h
* pycore_state.h -> pycore_pystate.h

Add missing headers to Makefile.pre.in and PCbuild:

* pycore_condvar.h.
* pycore_hamt.h
* pycore_pyhash.h
2018-11-12 16:53:38 +01:00
Victor Stinner 50b48572d9
bpo-35081: Add _PyThreadState_GET() internal macro (GH-10266)
If Py_BUILD_CORE is defined, the PyThreadState_GET() macro access
_PyRuntime which comes from the internal pycore_state.h header.
Public headers must not require internal headers.

Move PyThreadState_GET() and _PyInterpreterState_GET_UNSAFE() from
Include/pystate.h to Include/internal/pycore_state.h, and rename
PyThreadState_GET() to _PyThreadState_GET() there.

The PyThreadState_GET() macro of pystate.h is now redefined when
pycore_state.h is included, to use the fast _PyThreadState_GET().

Changes:

* Add _PyThreadState_GET() macro
* Replace "PyThreadState_GET()->interp" with
  _PyInterpreterState_GET_UNSAFE()
* Replace PyThreadState_GET() with _PyThreadState_GET() in internal C
  files (compiled with Py_BUILD_CORE defined), but keep
  PyThreadState_GET() in the public header files.
* _testcapimodule.c: replace PyThreadState_GET() with
  PyThreadState_Get(); the module is not compiled with Py_BUILD_CORE
  defined.
* pycore_state.h now requires Py_BUILD_CORE to be defined.
2018-11-01 01:51:40 +01:00
Victor Stinner 27e2d1f219
bpo-35081: Add pycore_ prefix to internal header files (GH-10263)
* Rename Include/internal/ header files:

  * pyatomic.h -> pycore_atomic.h
  * ceval.h -> pycore_ceval.h
  * condvar.h -> pycore_condvar.h
  * context.h -> pycore_context.h
  * pygetopt.h -> pycore_getopt.h
  * gil.h -> pycore_gil.h
  * hamt.h -> pycore_hamt.h
  * hash.h -> pycore_hash.h
  * mem.h -> pycore_mem.h
  * pystate.h -> pycore_state.h
  * warnings.h -> pycore_warnings.h

* PCbuild project, Makefile.pre.in, Modules/Setup: add the
  Include/internal/ directory to the search paths of header files.
* Update includes. For example, replace #include "internal/mem.h"
  with #include "pycore_mem.h".
2018-11-01 00:52:28 +01:00
Alexey Izbyshev a2eefa6754 bpo-34503: Fix refleak in PyErr_SetObject() (GH-8934) 2018-08-27 00:31:25 +08:00
Serhiy Storchaka ceeef10cdb
bpo-33818: PyExceptionClass_Name() will now return "const char *". (GH-7581) 2018-06-15 11:09:43 +03:00
Serhiy Storchaka cf296537f1
bpo-28994: PyErr_NormalizeException() no longer use C stack for recursion. (#2035)
MemoryError raised when normalizing a RecursionError raised during exception normalization now not always causes a fatal error.
2017-11-05 11:27:48 +02:00
xdegaye 56d1f5ca32 bpo-30697: Fix PyErr_NormalizeException() when no memory (GH-2327) 2017-10-26 15:09:06 +02:00
Mark Shannon ae3087c638 Move exc state to generator. Fixes bpo-25612 (#1773)
Move exception state information from frame objects to coroutine (generator/thread) object where it belongs.
2017-10-22 23:41:51 +02:00
Oren Milman f6e61df015 bpo-31418: Fix an assertion failure in PyErr_WriteUnraisable() in case of an exception with a bad __module__ attribute. (#3539) 2017-09-14 01:30:05 +03:00
Eric Snow 2ebc5ce42a bpo-30860: Consolidate stateful runtime globals. (#3397)
* group the (stateful) runtime globals into various topical structs
* consolidate the topical structs under a single top-level _PyRuntimeState struct
* add a check-c-globals.py script that helps identify runtime globals

Other globals are excluded (see globals.txt and check-c-globals.py).
2017-09-07 23:51:28 -06:00
scoder e4c06bcca3 bpo-31091: Remove dead code in PyErr_GivenExceptionMatches(). (#2963)
According to the comment, there was previously a call to PyObject_IsSubclass() involved which could fail, but since it was replaced with a call to PyType_IsSubtype(), it can no longer fail.
2017-07-31 23:27:46 +03:00
Martin Panter b46edf35f3 Issue #25677: Merge SyntaxError caret positioning from 3.6 2016-12-19 06:46:12 +00:00
Martin Panter 619555d77b Issue #25677: Merge SyntaxError caret positioning from 3.5 2016-12-19 06:46:01 +00:00
Serhiy Storchaka 26817a8490 Issue #28512: Fixed setting the offset attribute of SyntaxError by
PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
2016-12-11 14:44:21 +02:00
Serhiy Storchaka 8114f21668 Issue #28512: Fixed setting the offset attribute of SyntaxError by
PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
2016-12-11 14:43:18 +02:00
Serhiy Storchaka 8b58339eb2 Issue #28512: Fixed setting the offset attribute of SyntaxError by
PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
2016-12-11 14:39:01 +02:00
Martin Panter ca3263c50c Issue #25677: Correct syntax error caret for indented blocks.
Based on patch by Michael Layzell.
2016-12-11 00:18:36 +00:00
Victor Stinner 7bfb42d5b7 Issue #28858: Remove _PyObject_CallArg1() macro
Replace
   _PyObject_CallArg1(func, arg)
with
   PyObject_CallFunctionObjArgs(func, arg, NULL)

Using the _PyObject_CallArg1() macro increases the usage of the C stack, which
was unexpected and unwanted. PyObject_CallFunctionObjArgs() doesn't have this
issue.
2016-12-05 17:04:32 +01:00
Serhiy Storchaka 460bd0d284 Issue #19569: Compiler warnings are now emitted if use most of deprecated
functions.
2016-11-20 12:16:46 +02:00
Serhiy Storchaka 29a5447360 Issue #28701: Replace _PyUnicode_CompareWithId with _PyUnicode_EqualToASCIIId.
The latter function is more readable, faster and doesn't raise exceptions.

Based on patch by Xiang Zhang.
2016-11-16 15:41:31 +02:00
Serhiy Storchaka fab6acd9f5 Issue #28701: Replace _PyUnicode_CompareWithId with _PyUnicode_EqualToASCIIId.
The latter function is more readable, faster and doesn't raise exceptions.

Based on patch by Xiang Zhang.
2016-11-16 15:41:11 +02:00
Serhiy Storchaka f5894dd646 Issue #28701: Replace _PyUnicode_CompareWithId with _PyUnicode_EqualToASCIIId.
The latter function is more readable, faster and doesn't raise exceptions.

Based on patch by Xiang Zhang.
2016-11-16 15:40:39 +02:00
Victor Stinner c6944e7edc Issue #28618: Make hot functions using __attribute__((hot))
When Python is not compiled with PGO, the performance of Python on call_simple
and call_method microbenchmarks depend highly on the code placement. In the
worst case, the performance slowdown can be up to 70%.

The GCC __attribute__((hot)) attribute helps to keep hot code close to reduce
the risk of such major slowdown. This attribute is ignored when Python is
compiled with PGO.

The following functions are considered as hot according to statistics collected
by perf record/perf report:

* _PyEval_EvalFrameDefault()
* call_function()
* _PyFunction_FastCall()
* PyFrame_New()
* frame_dealloc()
* PyErr_Occurred()
2016-11-11 02:13:35 +01:00
Victor Stinner 0cae609847 Use PyThreadState_GET() in performance critical code
It seems like _PyThreadState_UncheckedGet() is not inlined as expected, even
when using gcc -O3.
2016-11-11 01:43:56 +01:00
Serhiy Storchaka 467ab194fc Issue #28410: Added _PyErr_FormatFromCause() -- the helper for raising
new exception with setting current exception as __cause__.

_PyErr_FormatFromCause(exception, format, args...) is equivalent to Python

    raise exception(format % args) from sys.exc_info()[1]
2016-10-21 17:09:17 +03:00
Serhiy Storchaka b0426cd8c4 Issue #28410: Keep the traceback of original exception in _PyErr_ChainExceptions(). 2016-10-21 16:20:43 +03:00
Serhiy Storchaka 9e373be1bc Issue #28410: Keep the traceback of original exception in _PyErr_ChainExceptions(). 2016-10-21 16:19:59 +03:00
Eric Snow 46f97b85a8 Issue #15767: Use ModuleNotFoundError. 2016-09-07 16:56:15 -07:00
Victor Stinner f45a56150b Issue #27809: PyErr_SetImportError() uses fast call 2016-08-23 00:04:41 +02:00
Victor Stinner 3a84097291 Add _PyErr_CreateException()
Issue #27809: Helper function optimized to create an exception: use fastcall
whenever possible.
2016-08-22 23:59:08 +02:00
Berker Peksag ec766d3c15 Issue #23960: Cleanup args and kwargs on error in PyErr_SetImportError
Patch by Ofer Schwarz.
2016-05-01 09:06:36 +03:00
Serhiy Storchaka 57a01d3a0e Issue #26200: Added Py_SETREF and replaced Py_XSETREF with Py_SETREF
in places where Py_DECREF was used.
2016-04-10 18:05:40 +03:00
Serhiy Storchaka 48842714b9 Issue #22570: Renamed Py_SETREF to Py_XSETREF. 2016-04-06 09:45:48 +03:00
Martin Panter 3263f6874a Issue #22836: Keep exception reports sensible despite errors 2016-02-28 03:16:11 +00:00