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* bpo-41995: Fix null ptr deref in tracemalloc_copy_trace() (GH-22660)Miss Skeleton (bot)2020-10-131-1/+1
| | | | | | | Fix a null pointer dereference in tracemalloc_copy_trace() of _tracemalloc. (cherry picked from commit 66c28f50c76e4f23af7146e0e580457c5fd6bde7) Co-authored-by: Yunlongs <lylgood@foxmail.com>
* Remove dead code from tracemalloc (GH-21029)Miss Islington (bot)2020-06-271-4/+0
| | | | | | | | tracemalloc_get_frame() checked filename == NULL two times in a row. Signed-off-by: Christian Heimes <christian@python.org> (cherry picked from commit 9cfcdb7d6e4d09bde63bc7116b2ab0d96724527e) Co-authored-by: Christian Heimes <christian@python.org>
* [3.9] bpo-40630: Add tracemalloc.reset_peak (GH-20102) (GH-20545)Huon Wilson2020-06-011-0/+25
| | | | | | | | | | | * bpo-40630: Add tracemalloc.reset_peak (GH-20102, cherrypick 8b62644) 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). * Adjust docs to point to 3.9
* 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.
* Issue #20186: Regenerated Argument Clinic.Serhiy Storchaka2017-02-051-1/+1
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* Issue #20186: Converted the tracemalloc module to Argument Clinic.Serhiy Storchaka2017-02-041-102/+123
| | | | Based on patch by Georg Brandl.
* replace PY_SIZE_MAX with SIZE_MAXBenjamin Peterson2016-09-071-2/+2
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* replace Py_(u)intptr_t with the c99 standard typesBenjamin Peterson2016-09-061-15/+15
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* Issue #27895: Spelling fixes (Contributed by Ville Skyttä).Raymond Hettinger2016-08-301-1/+1
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* - make some internal symbols staticdoko@ubuntu.com2016-05-171-1/+1
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* Issue #26778: Fixed "a/an/and" typos in code comment, documentation and errorSerhiy Storchaka2016-04-171-1/+1
|\ | | | | | | messages.
| * Issue #26778: Fixed "a/an/and" typos in code comment and documentation.Serhiy Storchaka2016-04-171-1/+1
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* | Issue #15984: Merge PyUnicode doc from 3.5Martin Panter2016-04-151-1/+1
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| * Correct “an” → “a” with “Unicode”, “user”, “UTF”, etcMartin Panter2016-04-151-1/+1
| | | | | | | | This affects documentation, code comments, and a debugging messages.
* | _tracemalloc: use compact key for tracesVictor Stinner2016-03-231-1/+61
| | | | | | | | | | | | Issue #26588: Optimize memory footprint of _tracemalloc before non-zero domain is used. Start with compact key (Py_uintptr_t) and also switch to pointer_t key when the first memory block with a non-zero domain is tracked.
* | Cleanup hashtable.hVictor Stinner2016-03-231-26/+24
| | | | | | | | | | | | | | | | | | | | | | | | Issue #26588: * Pass the hash table rather than the key size to hash and compare functions * _Py_HASHTABLE_READ_KEY() and _Py_HASHTABLE_ENTRY_READ_KEY() macros now expect the hash table as the first parameter, rather than the key size * tracemalloc_get_traces_fill(): use _Py_HASHTABLE_ENTRY_READ_DATA() rather than pointer dereference * Remove the _Py_HASHTABLE_ENTRY_WRITE_PKEY() macro * Move "PKEY" and "PDATA" macros inside hashtable.c
* | Issue #26588:Victor Stinner2016-03-231-11/+27
| | | | | | | | | | | | | | * Optimize tracemalloc_add_trace(): modify hashtable entry data (trace) if the memory block is already tracked, rather than trying to remove the old trace and then add a new trace. * Add _Py_HASHTABLE_ENTRY_WRITE_DATA() macro
* | Issue #26588:Victor Stinner2016-03-231-1/+1
| | | | | | | | | | | | | | | | * _Py_HASHTABLE_ENTRY_DATA: change type from "char *" to "const void *" * Add _Py_HASHTABLE_ENTRY_WRITE_PKEY() macro * Rename _Py_HASHTABLE_ENTRY_WRITE_DATA() macro to _Py_HASHTABLE_ENTRY_WRITE_PDATA() * Add _Py_HASHTABLE_ENTRY_WRITE_DATA() macro
* | Issue #26588: Optimize tracemalloc_realloc()Victor Stinner2016-03-231-1/+6
| | | | | | | | No need to remove the old trace if the memory block didn't move.
* | Merge 3.5Victor Stinner2016-03-221-15/+1
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