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* gh-101430: Update tracemalloc to handle presize properly. (gh-101745)Dong-hee Na2023-02-091-16/+8
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* GH-100126: Skip incomplete frames in more places (GH-100613)Brandt Bucher2023-01-091-10/+3
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* gh-81057: Move tracemalloc Globals to _PyRuntimeState (gh-100151)Eric Snow2022-12-121-68/+14
| | | https://github.com/python/cpython/issues/81057
* gh-81057: Move Globals in Core Code to _PyRuntimeState (gh-99496)Eric Snow2022-11-151-24/+26
| | | | | This is the first of several changes to consolidate non-object globals in core code. https://github.com/python/cpython/issues/81057
* gh-99300: Use Py_NewRef() in Modules/ directory (#99468)Victor Stinner2022-11-141-6/+4
| | | | Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and Py_XNewRef() in test C files of the Modules/ directory.
* GH-96612: Skip incomplete frames in tracemalloc traces. (GH-96613)Mark Shannon2022-09-061-3/+8
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* bpo-47177: Replace `f_lasti` with `prev_instr` (GH-32208)Brandt Bucher2022-04-071-1/+1
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* bpo-46836: Rename InterpreterFrame to _PyInterpreterFrame (GH-31583)Victor Stinner2022-02-251-3/+3
| | | | | Rename also struct _interpreter_frame to struct _PyInterpreterFrame. Reduce risk of name conflicts if a project includes pycore_frame.h.
* bpo-46765: Replace Locally Cached Strings with Statically Initialized ↵Eric Snow2022-02-231-10/+5
| | | | | Objects (gh-31366) https://bugs.python.org/issue46765
* bpo-46280: Fix tracemalloc_copy_domain() (GH-30591)Victor Stinner2022-01-141-0/+3
| | | | Test if tracemalloc_copy_traces() failed to allocated memory in tracemalloc_copy_domain().
* bpo-46303: Move fileutils.h private functions to internal C API (GH-30484)Victor Stinner2022-01-111-1/+2
| | | | | | | | | | 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.
* bpo-45637: Store the frame pointer in the cframe (GH-29267)Mark Shannon2021-10-281-1/+1
| | | * Rename 'frame' to 'current_frame'
* bpo-45434: pyport.h no longer includes <stdlib.h> (GH-28914)Victor Stinner2021-10-131-0/+3
| | | | | Include <stdlib.h> explicitly in C files. Python.h includes <wchar.h>.
* Fix typos in the Modules directory (GH-28761)Christian Clauss2021-10-071-1/+1
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* bpo-45355: Use sizeof(_Py_CODEUNIT) instead of literal 2 for the size of the ↵Serhiy Storchaka2021-10-031-1/+1
| | | | code unit (GH-28711)
* bpo-44590: Lazily allocate frame objects (GH-27077)Mark Shannon2021-07-261-9/+6
| | | | | | | | | | | | | | * Convert "specials" array to InterpreterFrame struct, adding f_lasti, f_state and other non-debug FrameObject fields to it. * Refactor, calls pushing the call to the interpreter upward toward _PyEval_Vector. * Compute f_back when on thread stack, only filling in value when frame object outlives stack invocation. * Move ownership of InterpreterFrame in generator from frame object to generator object. * Do not create frame objects for Python calls. * Do not create frame objects for generators.
* bpo-41995: Fix null ptr deref in tracemalloc_copy_trace() (GH-22660)Yunlongs2020-10-131-1/+1
| | | | Fix a null pointer dereference in tracemalloc_copy_trace() of _tracemalloc.
* Remove dead code from tracemalloc (GH-21029)Christian Heimes2020-06-271-4/+0
| | | | | tracemalloc_get_frame() checked filename == NULL two times in a row. Signed-off-by: Christian Heimes <christian@python.org>
* bpo-40630: Add tracemalloc.reset_peak (GH-20102)Huon Wilson2020-05-221-0/+25
| | | | | | | The reset_peak function sets the peak memory size to the current size, representing a resetting of that metric. This allows for recording the peak of specific sections of code, ignoring other code that may have had a higher peak (since the most recent `tracemalloc.start()` or tracemalloc.clear_traces()` call).
* bpo-40609: _Py_hashtable_t values become void* (GH-20065)Victor Stinner2020-05-131-137/+78
| | | | | | | | | | | | | | | | | | | | | _Py_hashtable_t values become regular "void *" pointers. * Add _Py_hashtable_entry_t.data member * Remove _Py_hashtable_t.data_size member * Remove _Py_hashtable_t.get_func member. It is no longer needed to specialize _Py_hashtable_get() for a specific value size, since all entries now have the same size (void*). * Remove the following macros: * _Py_HASHTABLE_GET() * _Py_HASHTABLE_SET() * _Py_HASHTABLE_SET_NODATA() * _Py_HASHTABLE_POP() * Rename _Py_hashtable_pop() to _Py_hashtable_steal() * _Py_hashtable_foreach() callback now gets key and value rather than entry. * Remove _Py_hashtable_value_destroy_func type. value_destroy_func callback now only has a single parameter: data (void*).
* bpo-40609: _tracemalloc allocates traces (GH-20064)Victor Stinner2020-05-131-43/+117
| | | | | | | | | | | | | Rewrite _tracemalloc to store "trace_t*" rather than directly "trace_t" in traces hash tables. Traces are now allocated on the heap memory, outside the hash table. Add tracemalloc_copy_traces() and tracemalloc_copy_domains() helper functions. Remove _Py_hashtable_copy() function since there is no API to copy a key or a value. Remove also _Py_hashtable_delete() function which was commented.
* bpo-40609: Add destroy functions to _Py_hashtable (GH-20062)Victor Stinner2020-05-131-26/+25
| | | | | | Add key_destroy_func and value_destroy_func parameters to _Py_hashtable_new_full(). marshal.c and _tracemalloc.c use these destroy functions.
* bpo-40609: Remove _Py_hashtable_t.key_size (GH-20060)Victor Stinner2020-05-131-67/+50
| | | | | | | | | | Rewrite _Py_hashtable_t type to always store the key as a "const void *" pointer. Add an explicit "key" member to _Py_hashtable_entry_t. Remove _Py_hashtable_t.key_size member. hash and compare functions drop their hash table parameter, and their 'key' parameter type becomes "const void *".
* bpo-40609: Rewrite how _tracemalloc handles domains (GH-20059)Victor Stinner2020-05-121-154/+173
| | | | | | | | | | Rewrite how the _tracemalloc module stores traces of other domains. Rather than storing the domain inside the key, it now uses a new hash table with the domain as the key, and the data is a per-domain traces hash table. * Add tracemalloc_domain hash table. * Remove _Py_tracemalloc_config.use_domain. * Remove pointer_t and related functions.
* bpo-40602: Rename hashtable.h to pycore_hashtable.h (GH-20044)Victor Stinner2020-05-121-1/+1
| | | | | | | * Move Modules/hashtable.h to Include/internal/pycore_hashtable.h * Move Modules/hashtable.c to Python/hashtable.c * Python is now linked to hashtable.c. _tracemalloc is no longer linked to hashtable.c. Previously, marshal.c got hashtable.c via _tracemalloc.c which is built as a builtin module.
* bpo-40421: Add PyFrame_GetBack() function (GH-19765)Victor Stinner2020-04-291-4/+8
| | | | | | New PyFrame_GetBack() function: get the frame next outer frame. Replace frame->f_back with PyFrame_GetBack(frame) in most code but frameobject.c, ceval.c and genobject.c.
* bpo-40429: PyThreadState_GetFrame() returns a strong ref (GH-19781)Victor Stinner2020-04-291-5/+3
| | | | The PyThreadState_GetFrame() function now returns a strong reference to the frame.
* bpo-40429: PyFrame_GetCode() now returns a strong reference (GH-19773)Victor Stinner2020-04-281-10/+9
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* bpo-40429: PyFrame_GetCode() result cannot be NULL (GH-19772)Victor Stinner2020-04-281-7/+0
| | | Add frame_nslots() to factorize duplicate code.
* bpo-40421: Add PyFrame_GetCode() function (GH-19757)Victor Stinner2020-04-281-1/+1
| | | | | | | | | PyFrame_GetCode(frame): return a borrowed reference to the frame code. Replace frame->f_code with PyFrame_GetCode(frame) in most code, except in frameobject.c, genobject.c and ceval.c. Also add PyFrame_GetLineNumber() to the limited C API.
* bpo-40268: Remove unused osdefs.h includes (GH-19532)Victor Stinner2020-04-151-1/+0
| | | When the include is needed, add required symbol in a comment.
* bpo-40268: Remove explicit pythread.h includes (#19529)Victor Stinner2020-04-151-1/+0
| | | | Remove explicit pythread.h includes: it is always included by Python.h.
* bpo-40268: Move struct _gc_runtime_state to pycore_gc.h (GH-19515)Victor Stinner2020-04-141-1/+2
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* bpo-39947: Use PyThreadState_GetFrame() (GH-19159)Victor Stinner2020-03-251-1/+2
| | | | | _tracemalloc.c and _xxsubinterpretersmodule.c use PyThreadState_GetFrame() and PyThreadState_GetInterpreter() to no longer depend on the PyThreadState structure.
* bpo-38249: Expand Py_UNREACHABLE() to __builtin_unreachable() in the release ↵Serhiy Storchaka2020-03-091-1/+1
| | | | | mode. (GH-16329) Co-authored-by: Victor Stinner <vstinner@python.org>
* bpo-39542: Make _Py_NewReference() opaque in C API (GH-18346)Victor Stinner2020-02-051-0/+1
| | | | | | | | | | _Py_NewReference() becomes a regular opaque function, rather than a static inline function in the C API (object.h), to better hide implementation details. Move _Py_tracemalloc_config from public pymem.h to internal pycore_pymem.h header. Make _Py_AddToAllObjects() private.
* bpo-38823: Fix refleak in _tracemalloc init error handling (GH-17235)Brandt Bucher2019-11-201-1/+3
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* bpo-37961, tracemalloc: add Traceback.total_nframe (GH-15545)Julien Danjou2019-10-151-13/+32
| | | | Add a total_nframe field to the traces collected by the tracemalloc module. This field indicates the original number of frames before it was truncated.
* bpo-37878: Remove PyThreadState_DeleteCurrent() function (GH-15315)Joannah Nanjekye2019-09-051-2/+2
| | | | | | | * Rename PyThreadState_DeleteCurrent() to _PyThreadState_DeleteCurrent() * Move it to the internal C API Co-Authored-By: Carol Willing <carolcode@willingconsulting.com>
* bpo-35134: Split traceback.h header (GH-13430)Victor Stinner2019-05-191-0/+1
| | | | Add new Include/cpython/traceback.h and Include/internal/traceback.h header files.
* bpo-29564:_PyMem_DumpTraceback() suggests enabling tracemalloc (GH-10510)Victor Stinner2018-11-131-0/+6
| | | | | 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: Dump Python object on GC assertion failure (GH-10062)Victor Stinner2018-10-251-2/+4
| | | | | | | | | | | | | | | | | | | | | | | Changes: * Add _PyObject_AssertFailed() function. * Add _PyObject_ASSERT() and _PyObject_ASSERT_WITH_MSG() macros. * gc_decref(): replace assert() with _PyObject_ASSERT_WITH_MSG() to dump the faulty object if the assertion fails. _PyObject_AssertFailed() calls: * _PyMem_DumpTraceback(): try to log the traceback where the object memory has been allocated if tracemalloc is enabled. * _PyObject_Dump(): log repr(obj). * Py_FatalError(): log the current Python traceback. _PyObject_AssertFailed() uses _PyObject_IsFreed() heuristic to check if the object memory has been freed by a debug hook on Python memory allocators. Initial patch written by David Malcolm. Co-Authored-By: David Malcolm <dmalcolm@redhat.com>
* bpo-35053: Enhance tracemalloc to trace free lists (GH-10063)Victor Stinner2018-10-251-51/+84
| | | | | | | | | | | | tracemalloc now tries to update the traceback when an object is reused from a "free list" (optimization for faster object creation, used by the builtin list type for example). Changes: * Add _PyTraceMalloc_NewReference() function which tries to update the Python traceback of a Python object. * _Py_NewReference() now calls _PyTraceMalloc_NewReference(). * Add an unit test.
* bpo-32030: Enhance Py_Main() (#4412)Victor Stinner2017-11-161-92/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Parse more env vars in Py_Main(): * Add more options to _PyCoreConfig: * faulthandler * tracemalloc * importtime * Move code to parse environment variables from _Py_InitializeCore() to Py_Main(). This change fixes a regression from Python 3.6: PYTHONUNBUFFERED is now read before calling pymain_init_stdio(). * _PyFaulthandler_Init() and _PyTraceMalloc_Init() now take an argument to decide if the module has to be enabled at startup. * tracemalloc_start() is now responsible to check the maximum number of frames. Other changes: * Cleanup Py_Main(): * Rename some pymain_xxx() subfunctions * Add pymain_run_python() subfunction * Cleanup Py_NewInterpreter() * _PyInterpreterState_Enable() now reports failure * init_hash_secret() now considers pyurandom() failure as an "user error": don't fail with abort(). * pymain_optlist_append() and pymain_strdup() now sets err on memory allocation failure.
* bpo-25658: Implement PEP 539 for Thread Specific Storage (TSS) API (GH-1362)Masayuki Yamamoto2017-10-061-17/+8
| | | | | | | | | See PEP 539 for details. Highlights of changes: - Add Thread Specific Storage (TSS) API - Document the Thread Local Storage (TLS) API as deprecated - Update code that used TLS API to use TSS API
* bpo-31338 (#3374)Barry Warsaw2017-09-151-1/+1
| | | | | | | * Add Py_UNREACHABLE() as an alias to abort(). * Use Py_UNREACHABLE() instead of assert(0) * Convert more unreachable code to use Py_UNREACHABLE() * Document Py_UNREACHABLE() and a few other macros.
* bpo-31370: Remove support for threads-less builds (#3385)Antoine Pitrou2017-09-071-36/+5
| | | | | | * Remove Setup.config * Always define WITH_THREAD for compatibility.
* bpo-31018: Switch to #pragma pack from __declspec(align) (#2848)Segev Finer2017-07-251-1/+4
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* bpo-30961: Fix decrementing a borrowed reference in tracemalloc. (#2747)Xiang Zhang2017-07-181-2/+1
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* bpo-30054: Expose tracemalloc C API (#1236)Victor Stinner2017-06-201-10/+10
| | | | | | | | | * Make PyTraceMalloc_Track() and PyTraceMalloc_Untrack() functions public (remove the "_" prefix) * Remove the _PyTraceMalloc_domain_t type: use directly unsigned int. * Document methods Note: methods are already tested in test_tracemalloc.
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