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a6e6f79133
With Python 2.4, we see this build failure:
./python/python-internal.h: In function 'gdb_Py_DECREF':
./python/python-internal.h:179: warning: dereferencing 'void *' pointer
./python/python-internal.h:179: error: request for member 'ob_refcnt' in something not a structure or union
Python 2.4 forgets to cast 'op' to PyObject pointer on the ob_refcnt
accesses:
#define Py_DECREF(op) \
if (_Py_DEC_REFTOTAL _Py_REF_DEBUG_COMMA \
--(op)->ob_refcnt != 0) \
_Py_CHECK_REFCNT(op) \
else \
_Py_Dealloc((PyObject *)(op))
...
#define _Py_CHECK_REFCNT(OP) \
{ if ((OP)->ob_refcnt < 0) \
_Py_NegativeRefcount(__FILE__, __LINE__, \
(PyObject *)(OP)); \
}
Python 2.7:
#define Py_DECREF(op) \
do { \
if (_Py_DEC_REFTOTAL _Py_REF_DEBUG_COMMA \
--((PyObject*)(op))->ob_refcnt != 0) \
_Py_CHECK_REFCNT(op) \
else \
_Py_Dealloc((PyObject *)(op)); \
} while (0)
...
#define _Py_CHECK_REFCNT(OP) \
{ if (((PyObject*)OP)->ob_refcnt < 0) \
_Py_NegativeRefcount(__FILE__, __LINE__, \
(PyObject *)(OP)); \
}
gdb/
2013-05-30 Pedro Alves <palves@redhat.com>
* python/python-internal.h (gdb_Py_DECREF): Cast OP to PyObject
pointer.