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| author | Victor Stinner <vstinner@redhat.com> | 2018-10-25 11:31:16 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-10-25 11:31:16 (GMT) |
| commit | 9e00e80e213ebc37eff89ce72102c1f928ebc133 (patch) | |
| tree | 50b24d69615a7994aeb4d776adc8666fcec5aafd /Objects | |
| parent | d7c3e5f0e89cb807093e33165815c8bbd3c00f4b (diff) | |
| download | cpython-9e00e80e213ebc37eff89ce72102c1f928ebc133.zip cpython-9e00e80e213ebc37eff89ce72102c1f928ebc133.tar.gz cpython-9e00e80e213ebc37eff89ce72102c1f928ebc133.tar.bz2 | |
bpo-35053: Enhance tracemalloc to trace free lists (GH-10063)
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.
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/object.c | 3 | ||||
| -rw-r--r-- | Objects/obmalloc.c | 6 |
2 files changed, 9 insertions, 0 deletions
diff --git a/Objects/object.c b/Objects/object.c index 00c0bad..4597b12 100644 --- a/Objects/object.c +++ b/Objects/object.c @@ -1919,6 +1919,9 @@ _Py_ReadyTypes(void) void _Py_NewReference(PyObject *op) { + if (_Py_tracemalloc_config.tracing) { + _PyTraceMalloc_NewReference(op); + } _Py_INC_REFTOTAL; op->ob_refcnt = 1; _Py_AddToAllObjects(op, 1); diff --git a/Objects/obmalloc.c b/Objects/obmalloc.c index d58da35..fbc9478 100644 --- a/Objects/obmalloc.c +++ b/Objects/obmalloc.c @@ -63,6 +63,12 @@ static void* _PyObject_Realloc(void *ctx, void *ptr, size_t size); #endif +/* bpo-35053: Declare tracemalloc configuration here rather than + Modules/_tracemalloc.c because _tracemalloc can be compiled as dynamic + library, whereas _Py_NewReference() requires it. */ +struct _PyTraceMalloc_Config _Py_tracemalloc_config = _PyTraceMalloc_Config_INIT; + + static void * _PyMem_RawMalloc(void *ctx, size_t size) { |