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* bpo-39877: Fix PyEval_RestoreThread() for daemon threads (GH-18811)Victor Stinner2020-03-081-20/+60
| | | | | | | | | | | | | | | | | | | | * exit_thread_if_finalizing() does now access directly _PyRuntime variable, rather than using tstate->interp->runtime since tstate can be a dangling pointer after Py_Finalize() has been called. * exit_thread_if_finalizing() is now called *before* calling take_gil(). _PyRuntime.finalizing is an atomic variable, we don't need to hold the GIL to access it. * Add ensure_tstate_not_null() function to check that tstate is not NULL at runtime. Check tstate earlier. take_gil() does not longer check if tstate is NULL. Cleanup: * PyEval_RestoreThread() no longer saves/restores errno: it's already done inside take_gil(). * PyEval_AcquireLock(), PyEval_AcquireThread(), PyEval_RestoreThread() and _PyEval_EvalFrameDefault() now check if tstate is valid with the new is_tstate_valid() function which uses _PyMem_IsPtrFreed().
* bpo-39882: Py_FatalError() logs the function name (GH-18819)Victor Stinner2020-03-061-6/+6
| | | | | | | | | | | | The Py_FatalError() function is replaced with a macro which logs automatically the name of the current function, unless the Py_LIMITED_API macro is defined. Changes: * Add _Py_FatalErrorFunc() function. * Remove the function name from the message of Py_FatalError() calls which included the function name. * Update tests.
* bpo-39877: _PyRuntimeState.finalizing becomes atomic (GH-18816)Victor Stinner2020-03-061-1/+2
| | | | | | | | | | | | Convert _PyRuntimeState.finalizing field to an atomic variable: * Rename it to _finalizing * Change its type to _Py_atomic_address * Add _PyRuntimeState_GetFinalizing() and _PyRuntimeState_SetFinalizing() functions * Remove _Py_CURRENTLY_FINALIZING() function: replace it with testing directly _PyRuntimeState_GetFinalizing() value Convert _PyRuntimeState_GetThreadState() to static inline function.
* bpo-39573: Finish converting to new Py_IS_TYPE() macro (GH-18601)Andy Lester2020-03-041-2/+2
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* Reuse identifier of PREDICT macros as PREDICT_ID (GH-17155)Denis Chernikov2020-02-211-5/+7
| | | | In function `_PyEval_EvalFrameDefault`, macros PREDICT and PREDICTED use the same identifier creation scheme, which may be shared between them, reducing code repetition, and do ensure that the same identifier is generated.
* closes bpo-39605: Fix some casts to not cast away const. (GH-18453)Andy Lester2020-02-121-3/+3
| | | | | | | | | | | | | | | gcc -Wcast-qual turns up a number of instances of casting away constness of pointers. Some of these can be safely modified, by either: Adding the const to the type cast, as in: - return _PyUnicode_FromUCS1((unsigned char*)s, size); + return _PyUnicode_FromUCS1((const unsigned char*)s, size); or, Removing the cast entirely, because it's not necessary (but probably was at one time), as in: - PyDTrace_FUNCTION_ENTRY((char *)filename, (char *)funcname, lineno); + PyDTrace_FUNCTION_ENTRY(filename, funcname, lineno); These changes will not change code, but they will make it much easier to check for errors in consts
* bpo-39245: Switch to public API for Vectorcall (GH-18460)Petr Viktorin2020-02-111-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The bulk of this patch was generated automatically with: for name in \ PyObject_Vectorcall \ Py_TPFLAGS_HAVE_VECTORCALL \ PyObject_VectorcallMethod \ PyVectorcall_Function \ PyObject_CallOneArg \ PyObject_CallMethodNoArgs \ PyObject_CallMethodOneArg \ ; do echo $name git grep -lwz _$name | xargs -0 sed -i "s/\b_$name\b/$name/g" done old=_PyObject_FastCallDict new=PyObject_VectorcallDict git grep -lwz $old | xargs -0 sed -i "s/\b$old\b/$new/g" and then cleaned up: - Revert changes to in docs & news - Revert changes to backcompat defines in headers - Nudge misaligned comments
* bpo-39573: Use Py_SET_SIZE() function (GH-18402)Victor Stinner2020-02-071-1/+1
| | | | Replace direct acccess to PyVarObject.ob_size with usage of the Py_SET_SIZE() function.
* bpo-39573: Use Py_TYPE() macro in Python and Include directories (GH-18391)Victor Stinner2020-02-071-7/+7
| | | Replace direct access to PyObject.ob_type with Py_TYPE().
* bpo-39487: Merge duplicated _Py_IDENTIFIER identifiers in C code (GH-18254)Hai Shi2020-01-301-2/+1
| | | Moving repetitive `_Py_IDENTIFIER` instances to a global location helps identify them more easily in regards to sub-interpreter support.
* bpo-38631: Replace Py_FatalError() with assert() in ceval.c (GH-18279)Victor Stinner2020-01-301-10/+4
| | | | | | | Replace a few Py_FatalError() calls if tstate is NULL with assert(tstate != NULL) in ceval.c. PyEval_AcquireThread(), PyEval_ReleaseThread() and PyEval_RestoreThread() must never be called with a NULL tstate.
* bpo-38960: DTrace build fix for FreeBSD. (GH-17451)David Carlier2020-01-281-3/+3
| | | | | | | | DTrace build fix for FreeBSD. - allowing passing an extra flag as it need to define the arch size. - casting some probe's arguments.
* bpo-38644: Pass tstate in ceval.c (GH-18222)Victor Stinner2020-01-281-6/+6
| | | Pass explicitly the Python thread state (tstate) in ceval.c.
* bpo-39320: Handle unpacking of **values in compiler (GH-18141)Mark Shannon2020-01-271-36/+19
| | | | | | | | | | | | | * Add DICT_UPDATE and DICT_MERGE bytecodes. Use them for ** unpacking. * Remove BUILD_MAP_UNPACK and BUILD_MAP_UNPACK_WITH_CALL, as they are now unused. * Update magic number for ** unpacking opcodes. * Update dis.rst to incorporate new bytecodes. * Add blurb entry.
* bpo-39320: Handle unpacking of *values in compiler (GH-17984)Mark Shannon2020-01-231-53/+34
| | | | | | | | * Add three new bytecodes: LIST_TO_TUPLE, LIST_EXTEND, SET_UPDATE. Use them to implement star unpacking expressions. * Remove four bytecodes BUILD_LIST_UNPACK, BUILD_TUPLE_UNPACK, BUILD_SET_UNPACK and BUILD_TUPLE_UNPACK_WITH_CALL opcodes as they are now unused. * Update magic number and dis.rst for new bytecodes.
* bpo-39048: Look up __aenter__ before __aexit__ in async with (GH-17609)Géry Ogam2020-01-141-9/+10
| | | | | | * Reorder the __aenter__ and __aexit__ checks for async with * Add assertions for async with body being skipped * Swap __aexit__ and __aenter__ loading in the documentation
* bpo-39156: Break up COMPARE_OP into four logically distinct opcodes. (GH-17754)Mark Shannon2020-01-141-59/+78
| | | | | | | | Break up COMPARE_OP into four logically distinct opcodes: * COMPARE_OP for rich comparisons * IS_OP for 'is' and 'is not' tests * CONTAINS_OP for 'in' and 'is not' tests * JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
* bpo-38644: Pass tstate to _Py_FinishPendingCalls() (GH-17990)Victor Stinner2020-01-131-2/+2
| | | | _Py_FinishPendingCalls() now expects a tstate argument, instead of a runtime argument.
* Cleanup exit code for interpreter. (GH-17756)Mark Shannon2020-01-131-6/+5
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* bpo-39166: Fix trace of last iteration of async for loops (#17800)Pablo Galindo2020-01-101-5/+9
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* bpo-39114: Fix tracing of except handlers with name binding (GH-17769)Pablo Galindo2020-01-021-1/+3
| | | When producing the bytecode of exception handlers with name binding (like `except Exception as e`) we need to produce a try-finally block to make sure that the name is deleted after the handler is executed to prevent cycles in the stack frame objects. The bytecode associated with this try-finally block does not have source lines associated and it was causing problems when the tracing functionality was running over it.
* Produce cleaner bytecode for 'with' and 'async with' by generating separate ↵Mark Shannon2019-11-211-192/+30
| | | | | | code for normal and exceptional paths. (#6641) Remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Implement finally blocks by code duplication. Reimplement frame.lineno setter using line numbers rather than bytecode offsets.
* bpo-36710: Add PyInterpreterState.runtime field (GH-17270)Victor Stinner2019-11-201-12/+16
| | | | | | | | | | | Add PyInterpreterState.runtime field: reference to the _PyRuntime global variable. This field exists to not have to pass runtime in addition to tstate to a function. Get runtime from tstate: tstate->interp->runtime. Remove "_PyRuntimeState *runtime" parameter from functions already taking a "PyThreadState *tstate" parameter. _PyGC_Init() first parameter becomes "PyThreadState *tstate".
* bpo-38644: Add _PyEval_EvalCode() (GH-17183)Victor Stinner2019-11-161-4/+24
| | | _PyFunction_Vectorcall() now pass tstate to function calls.
* bpo-38644: Add _PyObject_Call() (GH-17089)Victor Stinner2019-11-141-5/+6
| | | | | | | | | | * Add pycore_call.h internal header file. * Add _PyObject_Call(): PyObject_Call() with tstate * Add _PyObject_CallNoArgTstate(): _PyObject_CallNoArg() with tstate * Add _PyObject_FastCallDictTstate(): _PyObject_FastCallDict() with tstate * _PyObject_Call_Prepend() now takes tstate * Replace _PyObject_FastCall() calls with _PyObject_VectorcallTstate() calls
* bpo-38644: Add _PyEval_EvalFrame() with tstate (GH-17131)Victor Stinner2019-11-141-5/+7
| | | | Add _PyEval_EvalFrame() static inline function to get eval_frame from tstate->interp.
* bpo-37645: add new function _PyObject_FunctionStr() (GH-14890)Jeroen Demeyer2019-11-051-19/+30
| | | | | | | | | | | | Additional note: the `method_check_args` function in `Objects/descrobject.c` is written in such a way that it applies to all kinds of descriptors. In particular, a future re-implementation of `wrapper_descriptor` could use that code. CC @vstinner @encukou https://bugs.python.org/issue37645 Automerge-Triggered-By: @encukou
* bpo-38644: Pass tstate to _Py_CheckFunctionResult() (GH-17050)Victor Stinner2019-11-051-1/+1
| | | | | * Add tstate parameter to _Py_CheckFunctionResult() * Add _PyErr_FormatFromCauseTstate() * Replace PyErr_XXX(...) with _PyErr_XXX(state, ...)
* bpo-38644: Pass tstate to Py_EnterRecursiveCall() (GH-16997)Victor Stinner2019-11-041-7/+7
| | | | | | | | | | | | | * Add _Py_EnterRecursiveCall() and _Py_LeaveRecursiveCall() which require a tstate argument. * Pass tstate to _Py_MakeRecCheck() and _Py_CheckRecursiveCall(). * Convert Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() macros to static inline functions. _PyThreadState_GET() is the most efficient way to get the tstate, and so using it with _Py_EnterRecursiveCall() and _Py_LeaveRecursiveCall() should be a little bit more efficient than using Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() which use the "slower" PyThreadState_GET().
* bpo-38644: Add Py_EnterRecursiveCall() to the limited API (GH-17046)Victor Stinner2019-11-041-0/+18
| | | | | | | | | | Provide Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() as regular functions for the limited API. Previously, there were defined as macros, but these macros didn't work with the limited API which cannot access PyThreadState.recursion_depth field. Remove _Py_CheckRecursionLimit from the stable ABI. Add Include/cpython/ceval.h header file.
* bpo-38310: Predict BUILD_MAP_UNPACK_WITH_CALL -> CALL_FUNCTION_EX. (GH-16467)Brandt Bucher2019-09-291-0/+2
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* bpo-37151: remove special case for PyCFunction from PyObject_Call (GH-14684)Jeroen Demeyer2019-09-111-1/+1
| | | | | | | bpo-37151: remove special case for PyCFunction from PyObject_Call Alse, make the undocumented function PyCFunction_Call an alias of PyObject_Call and deprecate it.
* bpo-38090: Fix reference leak in ceval.c (GH-15848)Pablo Galindo2019-09-101-1/+0
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* bpo-20490: Improve circular import error message (GH-15308)Anthony Sottile2019-09-091-4/+11
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* bpo-15088 : Remove PyGen_NeedsFinalizing() (GH-15702)Joannah Nanjekye2019-09-061-5/+0
| | | | | Remove PyGen_NeedsFinalizing(): it was not documented, tested or used anywhere within CPython after the implementation of PEP 442.
* bpo-34880: Add the LOAD_ASSERTION_ERROR opcode. (GH-15073)Zackery Spytz2019-08-251-0/+7
| | | | Fix assert statement misbehavior if AssertionError is shadowed.
* bpo-37540: vectorcall: keyword names must be strings (GH-14682)Jeroen Demeyer2019-08-161-15/+9
| | | | | | | | The fact that keyword names are strings is now part of the vectorcall and `METH_FASTCALL` protocols. The biggest concrete change is that `_PyStack_UnpackDict` now checks that and raises `TypeError` if not. CC @markshannon @vstinner https://bugs.python.org/issue37540
* bpo-37547: add _PyObject_CallMethodOneArg (GH-14685)Jeroen Demeyer2019-07-111-1/+1
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* bpo-36974: separate vectorcall functions for each calling convention (GH-13781)Jeroen Demeyer2019-07-051-4/+4
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* bpo-37483: add _PyObject_CallOneArg() function (#14558)Jeroen Demeyer2019-07-041-1/+1
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* bpo-37484: use _PyObject_Vectorcall for __exit__ (GH-14557)Jeroen Demeyer2019-07-031-5/+3
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* bpo-35224: Reverse evaluation order of key: value in dict comprehensions ↵Jörn Heissler2019-06-221-2/+2
| | | | | | | | | | | (GH-14139) … as proposed in PEP 572; key is now evaluated before value. https://bugs.python.org/issue35224
* bpo-37151: remove _PyCFunction_FastCallDict (GH-14269)Jeroen Demeyer2019-06-201-4/+4
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* bpo-37249: add declaration of _PyObject_GetMethod (GH-14015)Jeroen Demeyer2019-06-141-4/+0
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* bpo-36710: Pass explicitly tstate in sysmodule.c (GH-14060)Victor Stinner2019-06-131-2/+1
| | | | | | | | * 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).
* Revert "bpo-36818: Add PyInterpreterState.runtime field. (gh-13129)" (GH-13795)Victor Stinner2019-06-041-15/+11
| | | This reverts commit 396e0a8d9dc65453cb9d53500d0a620602656cfe.
* bpo-37146: disable opcache when Py_DEBUG is defined (GH-13787)Inada Naoki2019-06-031-0/+7
| | | | | --with-pydebug is commonly used to find memory leaks. But opcache makes it harder. So disable opcache when Py_DEBUG is defined.
* Revert "bpo-33608: Factor out a private, per-interpreter ↵Victor Stinner2019-06-031-205/+130
| | | | | _Py_AddPendingCall(). (gh-13714)" (GH-13780) This reverts commit 6a150bcaeb190d1731b38ab9c7a5d1a352847ddc.
* bpo-26219: remove unused code (GH-13775)Inada Naoki2019-06-031-3/+0
| | | | This code was for deoptimization, which is removed from PR-12884.
* bpo-26219: per opcode cache for LOAD_GLOBAL (GH-12884)Inada Naoki2019-06-031-1/+142
| | | | | | This patch implements per opcode cache mechanism, and use it in only LOAD_GLOBAL opcode. Based on Yury's opcache3.patch in bpo-26219.
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