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* Applys part of the patch from http://bugs.python.org/issue3631 to add
 a py_decref macro, fixup the pyo macro and reuse it and avoid a memory leak introduced by the pylocals macro. * Adds a note about gdb 7 python debugging support with links for more info on that.
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‎Misc/gdbinit‎

Lines changed: 21 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,3 @@
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# -*- ksh -*-
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#
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# If you use the GNU debugger gdb to debug the Python C runtime, you
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# might find some of the following commands useful. Copy this to your
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# ~/.gdbinit file and it'll get loaded into gdb automatically when you
@@ -11,19 +9,36 @@
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# address : 84a7a2c
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# $1 = void
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# (gdb)
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#
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# NOTE: If you have gdb 7 or later, it supports debugging of Python directly
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# with embedded macros that you may find superior to what is in here.
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# See https://fedoraproject.org/wiki/Features/EasierPythonDebugging
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# and http://bugs.python.org/issue8032 for more gdb 7 python information.
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# gdb version of Py_DECREF(obj) macro
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define py_decref
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set $__obj = $arg0
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set $__obj->ob_refcnt -= 1
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if ($__obj->ob_refcnt == 0)
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set $__obj = _Py_Dealloc($__obj)
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end
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end
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# Prints a representation of the object to stderr, along with the
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# number of reference counts it current has and the hex address the
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# object is allocated at. The argument must be a PyObject*
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define pyo
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print _PyObject_Dump($arg0)
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# side effect of calling _PyObject_Dump is to dump the object's
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# info - assigning just prevents gdb from printing the
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# NULL return value
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set $_unused_void = _PyObject_Dump($arg0)
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end
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# Prints a representation of the object to stderr, along with the
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# number of reference counts it current has and the hex address the
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# object is allocated at. The argument must be a PyGC_Head*
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define pyg
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print _PyGC_Dump($arg0)
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print _PyGC_Dump($arg0)
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end
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# print the local variables of the current frame
@@ -34,10 +49,8 @@ define pylocals
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set $_names = co->co_varnames
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set $_name = _PyUnicode_AsString(PyTuple_GetItem($_names, $_i))
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printf "%s:\n", $_name
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# side effect of calling _PyObject_Dump is to dump the object's
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# info - assigning just prevents gdb from printing the
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# NULL return value
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set $_val = _PyObject_Dump(f->f_localsplus[$_i])
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py_decref $_name
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pyo f->f_localsplus[$_i]
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end
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set $_i = $_i + 1
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end

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