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* bpo-40302: Add pycore_byteswap.h header file (GH-19552)Victor Stinner2020-04-171-0/+8
| | | | | | | | | | | | | | 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-39984: _PyThreadState_DeleteCurrent() takes tstate (GH-19051)Victor Stinner2020-03-181-1/+2
| | | | | | | | | | * _PyThreadState_DeleteCurrent() now takes tstate rather than runtime. * Add ensure_tstate_not_null() helper to pystate.c. * Add _PyEval_ReleaseLock() function. * _PyThreadState_DeleteCurrent() now calls _PyEval_ReleaseLock(tstate) and frees PyThreadState memory after this call, not before. * PyGILState_Release(): rename "tcur" variable to "tstate".
* bpo-38643: Raise SystemError instead of crashing when PyNumber_ToBase is ↵Serhiy Storchaka2020-03-091-0/+14
| | | | called with invalid base. (GH-18863)
* bpo-39882: Py_FatalError() logs the function name (GH-18819)Victor Stinner2020-03-061-9/+11
| | | | | | | | | | | | 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-38875: test_capi: trashcan tests require cpu resource (GH-17314)Victor Stinner2019-11-211-0/+2
| | | test_capi: trashcan tests now require the test "cpu" resource.
* bpo-38417: Add umask support to subprocess (GH-16726)Gregory P. Smith2019-10-121-3/+3
| | | | On POSIX systems, allow the umask to be set in the child process before we exec.
* bpo-36389: _PyObject_CheckConsistency() available in release mode (GH-16612)Victor Stinner2019-10-071-0/+3
| | | | | | | | | | | | | | | | | | | | | bpo-36389, bpo-38376: The _PyObject_CheckConsistency() function is now also available in release mode. For example, it can be used to debug a crash in the visit_decref() function of the GC. Modify the following functions to also work in release mode: * _PyDict_CheckConsistency() * _PyObject_CheckConsistency() * _PyType_CheckConsistency() * _PyUnicode_CheckConsistency() Other changes: * _PyMem_IsPtrFreed(ptr) now also returns 1 if ptr is NULL (equals to 0). * _PyBytesWriter_CheckConsistency() now returns 1 and is only used with assert(). * Reorder _PyObject_Dump() to write safe fields first, and only attempt to render repr() at the end.
* bpo-38140: Make dict and weakref offsets opaque for C heap types (#16076)Eddie Elizondo2019-09-191-0/+27
| | | | | | * Make dict and weakref offsets opaque for C heap types * Add news
* bpo-38070: Py_FatalError() logs runtime state (GH-16246)Victor Stinner2019-09-171-0/+2
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* bpo-36046: Add user and group parameters to subprocess (GH-11950)Patrick McLean2019-09-121-3/+3
| | | | | | | | | | | | | | * subprocess: Add user, group and extra_groups paremeters to subprocess.Popen This adds a `user` parameter to the Popen constructor that will call setreuid() in the child before calling exec(). This allows processes running as root to safely drop privileges before running the subprocess without having to use a preexec_fn. This also adds a `group` parameter that will call setregid() in the child process before calling exec(). Finally an `extra_groups` parameter was added that will call setgroups() to set the supplimental groups.
* bpo-37879: Suppress subtype_dealloc decref when base type is a C heap type ↵Eddie Elizondo2019-09-111-0/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (GH-15323) The instance destructor for a type is responsible for preparing an instance for deallocation by decrementing the reference counts of its referents. If an instance belongs to a heap type, the type object of an instance has its reference count decremented while for static types, which are permanently allocated, the type object is unaffected by the instance destructor. Previously, the default instance destructor searched the class hierarchy for an inherited instance destructor and, if present, would invoke it. Then, if the instance type is a heap type, it would decrement the reference count of that heap type. However, this could result in the premature destruction of a type because the inherited instance destructor should have already decremented the reference count of the type object. This change avoids the premature destruction of the type object by suppressing the decrement of its reference count when an inherited, non-default instance destructor has been invoked. Finally, an assertion on the Py_SIZE of a type was deleted. Heap types have a non zero size, making this into an incorrect assertion. https://github.com/python/cpython/pull/15323
* Remove unused imports in tests (GH-14518)Victor Stinner2019-07-011-1/+0
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* bpo-37191: Move TestPEP590 from test_capi to test_call (GH-13892)Victor Stinner2019-06-071-115/+0
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* bpo-37169: Rewrite _PyObject_IsFreed() unit tests (GH-13888)Victor Stinner2019-06-071-14/+15
| | | | | Replace two Python function calls with a single one to ensure that no memory allocation is done between the invalid object is created and when _PyObject_IsFreed() is called.
* Revert "bpo-33608: Factor out a private, per-interpreter ↵Victor Stinner2019-06-031-1/+1
| | | | | _Py_AddPendingCall(). (gh-13714)" (GH-13780) This reverts commit 6a150bcaeb190d1731b38ab9c7a5d1a352847ddc.
* bpo-36974: Make tp_call=PyVectorcall_Call work for inherited types (GH-13699)Petr Viktorin2019-06-021-5/+25
| | | | | | | | | | | | | | | | | | When inheriting a heap subclass from a vectorcall class that sets `.tp_call=PyVectorcall_Call` (as recommended in PEP 590), the subclass does not inherit `_Py_TPFLAGS_HAVE_VECTORCALL`, and thus `PyVectorcall_Call` does not work for it. This attempts to solve the issue by: * always inheriting `tp_vectorcall_offset` unless `tp_call` is overridden in the subclass * inheriting _Py_TPFLAGS_HAVE_VECTORCALL for static types, unless `tp_call` is overridden * making `PyVectorcall_Call` ignore `_Py_TPFLAGS_HAVE_VECTORCALL` This means it'll be ever more important to only call `PyVectorcall_Call` on classes that support vectorcall. In `PyVectorcall_Call`'s intended role as `tp_call` filler, that's not a problem.
* bpo-33608: Factor out a private, per-interpreter _Py_AddPendingCall(). ↵Eric Snow2019-06-011-1/+1
| | | | (gh-13714)
* bpo-36379: __ipow__ must be a ternaryfunc, not a binaryfunc (GH-13546)Zackery Spytz2019-05-311-0/+7
| | | | | | | If a type's __ipow__ method was implemented in C, attempting to use the *modulo* parameter would cause crashes. https://bugs.python.org/issue36379
* bpo-36974: inherit the vectorcall protocol (GH-13498)Jeroen Demeyer2019-05-301-1/+26
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* bpo-36974: implement PEP 590 (GH-13185)Jeroen Demeyer2019-05-291-0/+47
| | | | | Co-authored-by: Jeroen Demeyer <J.Demeyer@UGent.be> Co-authored-by: Mark Shannon <mark@hotpy.org>
* bpo-36922: implement PEP-590 Py_TPFLAGS_METHOD_DESCRIPTOR (GH-13338)Jeroen Demeyer2019-05-281-0/+24
| | | Co-authored-by: Mark Shannon <mark@hotpy.org>
* bpo-31862: Port binascii to PEP 489 multiphase initialization (GH-4108)Marcel Plch2019-05-221-0/+13
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* bpo-35983: skip trashcan for subclasses (GH-11841)Jeroen Demeyer2019-05-101-0/+43
| | | | | Add new trashcan macros to deal with a double deallocation that could occur when the `tp_dealloc` of a subclass calls the `tp_dealloc` of a base class and that base class uses the trashcan mechanism. Patch by Jeroen Demeyer.
* bpo-36611: Disable serialno field of debug memory allocators (#12796)Victor Stinner2019-04-121-2/+2
| | | | | | | | | | | Omit serialno field from debug hooks on Python memory allocators to reduce the memory footprint by 5%. Enable tracemalloc to get the traceback where a memory block has been allocated when a fatal memory error is logged to decide where to put a breakpoint. Compile Python with PYMEM_DEBUG_SERIALNO defined to get back the field.
* bpo-33608: Revert "Factor out a private, per-interpreter ↵Eric Snow2019-04-121-1/+1
| | | | | _Py_AddPendingCall()." (gh-12806) This reverts commit f13c5c8b9401a9dc19e95d8b420ee100ac022208 (gh-12360).
* bpo-33608: Factor out a private, per-interpreter _Py_AddPendingCall(). ↵Eric Snow2019-04-121-1/+1
| | | | | (gh-12360) This is effectively an un-revert of #11617 and #12024 (reverted in #12159). Portions of those were merged in other PRs (with lower risk) and this represents the remainder. Note that I found 3 different bugs in the original PRs and have fixed them here.
* bpo-36389: Change PyMem_SetupDebugHooks() constants (GH-12782)Victor Stinner2019-04-111-4/+4
| | | | | Modify CLEANBYTE, DEADDYTE and FORBIDDENBYTE constants: use 0xCD, 0xDD and 0xFD, rather than 0xCB, 0xBB and 0xFB, to use the same byte patterns than Windows CRT debug malloc() and free().
* bpo-36389: _PyObject_IsFreed() now also detects uninitialized memory (GH-12770)Victor Stinner2019-04-111-0/+23
| | | | | | | | | Replace _PyMem_IsFreed() function with _PyMem_IsPtrFreed() inline function. The function is now way more efficient, it became a simple comparison on integers, rather than a short loop. It detects also uninitialized bytes and "forbidden bytes" filled by debug hooks on memory allocators. Add unit tests on _PyObject_IsFreed().
* bpo-35059: Enhance _PyObject_AssertFailed() (GH-10642)Victor Stinner2018-11-211-1/+1
| | | | | | Enhance _PyObject_AssertFailed() * Exchange 'expr' and 'msg' parameters * 'expr' and 'func' arguments can now be NULL
* bpo-29564:_PyMem_DumpTraceback() suggests enabling tracemalloc (GH-10510)Victor Stinner2018-11-131-0/+4
| | | | | If tracemalloc is not tracing Python memory allocations, _PyMem_DumpTraceback() now suggests to enable tracemalloc to get the traceback where the memory block has been allocated.
* bpo-9263: _Py_NegativeRefcount() use _PyObject_AssertFailed() (GH-10109)Victor Stinner2018-10-261-2/+3
| | | | _Py_NegativeRefcount() now uses _PyObject_AssertFailed() to dump the object to help debugging.
* bpo-35059: Add Py_STATIC_INLINE() macro (GH-10093)Victor Stinner2018-10-251-0/+17
| | | | | | | | | * Add Py_STATIC_INLINE() macro to declare a "static inline" function. If the compiler supports it, try to always inline the function even if no optimization level was specified. * Modify pydtrace.h to use Py_STATIC_INLINE() when WITH_DTRACE is not defined. * Add an unit test on Py_DECREF() to make sure that _Py_NegativeRefcount() reports the correct filename.
* bpo-34272: Move argument parsing tests from test_capi to test_getargs2. ↵Serhiy Storchaka2018-08-061-180/+3
| | | | (GH-8567)
* bpo-23927: Make getargs.c skipitem() skipping 'w*'. (GH-8192)Serhiy Storchaka2018-07-111-0/+32
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* bpo-32030: Rework memory allocators (#4625)Victor Stinner2017-11-291-2/+1
| | | | | | | | | | | | | | | | | | | | * Fix _PyMem_SetupAllocators("debug"): always restore allocators to the defaults, rather than only caling _PyMem_SetupDebugHooks(). * Add _PyMem_SetDefaultAllocator() helper to set the "default" allocator. * Add _PyMem_GetAllocatorsName(): get the name of the allocators * main() now uses debug hooks on memory allocators if Py_DEBUG is defined, rather than calling directly malloc() * Document default memory allocators in C API documentation * _Py_InitializeCore() now fails with a fatal user error if PYTHONMALLOC value is an unknown memory allocator, instead of failing with a fatal internal error. * Add new tests on the PYTHONMALLOC environment variable * Add support.with_pymalloc() * Add the _testcapi.WITH_PYMALLOC constant and expose it as support.with_pymalloc(). * sysconfig.get_config_var('WITH_PYMALLOC') doesn't work on Windows, so replace it with support.with_pymalloc(). * pythoninfo: add _testcapi collector for pymem
* bpo-32136: Separate embedding tests from C API tests (GH-4567)Nick Coghlan2017-11-271-186/+1
| | | | | | | | | Some parts of the C API are only relevant to larger applications embedding CPython as a runtime engine. The helpers to test those APIs are already separated out into Programs/_testembed.c, this update moves the associated test cases out into their own dedicated test file.
* bpo-32096: Remove obj and mem from _PyRuntime (#4532)Victor Stinner2017-11-241-0/+10
| | | | | | | | | | | | | | | | | bpo-32096, bpo-30860: Partially revert the commit 2ebc5ce42a8a9e047e790aefbf9a94811569b2b6: * Move structures back from Include/internal/mem.h to Objects/obmalloc.c * Remove _PyObject_Initialize() and _PyMem_Initialize() * Remove Include/internal/pymalloc.h * Add test_capi.test_pre_initialization_api(): Make sure that it's possible to call Py_DecodeLocale(), and then call Py_SetProgramName() with the decoded string, before Py_Initialize(). PyMem_RawMalloc() and Py_DecodeLocale() can be called again before _PyRuntimeState_Init(). Co-Authored-By: Eric Snow <ericsnowcurrently@gmail.com>
* test_capi.test__testcapi() becomes more verbose (#4197)Victor Stinner2017-10-311-4/+9
| | | | Write the name of each subtest on a new line to help debugging when a test does crash Python.
* bpo-28280: Make PyMapping_Keys(), PyMapping_Values() and PyMapping_Items() ↵Oren Milman2017-10-081-1/+45
| | | | always return a list (#3840)
* bpo-31370: Remove support for threads-less builds (#3385)Antoine Pitrou2017-09-071-8/+2
| | | | | | * Remove Setup.config * Always define WITH_THREAD for compatibility.
* bpo-30695: Add set_nomemory(start, stop) to _testcapi (GH-2406)xdegaye2017-07-011-1/+33
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* bpo-28180: Fix test_capi.test_forced_io_encoding() (#2155)Victor Stinner2017-06-131-1/+1
| | | | | Don't run Python in an empty environment, but copy the current environment and set PYTHONIOENCODING. So the test works also on Python compiled in shared mode (using libpython).
* bpo-28180: Implementation for PEP 538 (#659)Nick Coghlan2017-06-111-19/+16
| | | | | | | | | | - new PYTHONCOERCECLOCALE config setting - coerces legacy C locale to C.UTF-8, C.utf8 or UTF-8 by default - always uses C.UTF-8 on Android - uses `surrogateescape` on stdin and stdout in the coercion target locales - configure option to disable locale coercion at build time - configure option to disable C locale warning at build time
* bpo-30447: Fix/skip the subinterpreters test on some platforms. (#1791)Eric Snow2017-05-251-43/+42
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* bpo-29102: Add a unique ID to PyInterpreterState. (#1639)Eric Snow2017-05-231-5/+86
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* bpo-30184: Add tests for invalid use of PyArg_ParseTupleAndKeywords. (#1316)Serhiy Storchaka2017-05-031-18/+41
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* bpo-30065: Fixed arguments validation in _posixsubprocess.fork_exec(). (#1110)Serhiy Storchaka2017-04-191-3/+3
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* bpo-29951: Include function name for some error messages in ↵Michael Seifert2017-04-091-4/+4
| | | | | | | `PyArg_ParseTuple*` (#916) Also changed format specifier for function name from "%s" to "%.200s" and exception messages should start with lowercase letter.
* Issue #24932: Use proper command line parsing in _testembedSteve Dower2017-01-021-1/+1
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* Issue #28410: Added _PyErr_FormatFromCause() -- the helper for raisingSerhiy Storchaka2016-10-211-2/+2
| | | | | | | | 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]
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