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bpo-38070: Enhance _PyObject_Dump() (GH-16243) 

_PyObject_Dump() now dumps the object address for freed objects and
objects with ob_type=NULL.
This commit is contained in:
Victor Stinner 2019-09-17 23:36:28 +02:00 committed by GitHub
parent 8fa3e1740b
commit b39afb7876
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 6 deletions
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13
Objects/object.c
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@ -464,7 +464,7 @@ void
_PyObject_Dump(PyObject* op)
{
if (op == NULL) {
fprintf(stderr, "<NULL object>\n");
fprintf(stderr, "<object at NULL>\n");
fflush(stderr);
return;
}
@ -472,7 +472,7 @@ _PyObject_Dump(PyObject* op)
if (_PyObject_IsFreed(op)) {
/* It seems like the object memory has been freed:
don't access it to prevent a segmentation fault. */
fprintf(stderr, "<Freed object>\n");
fprintf(stderr, "<object at %p is freed>\n", op);
return;
}
@ -2160,18 +2160,19 @@ _PyObject_AssertFailed(PyObject *obj, const char *expr, const char *msg,
fflush(stderr);
if (obj == NULL) {
fprintf(stderr, "<NULL object>\n");
fprintf(stderr, "<object at NULL>\n");
}
else if (_PyObject_IsFreed(obj)) {
/* It seems like the object memory has been freed:
don't access it to prevent a segmentation fault. */
fprintf(stderr, "<object: freed>\n");
fprintf(stderr, "<object at %p is freed>\n", obj);
}
else if (Py_TYPE(obj) == NULL) {
fprintf(stderr, "<object: ob_type=NULL>\n");
fprintf(stderr, "<object at %p: ob_type=NULL>\n", obj);
}
else if (_PyObject_IsFreed((PyObject *)Py_TYPE(obj))) {
fprintf(stderr, "<object: freed type %p>\n", (void *)Py_TYPE(obj));
fprintf(stderr, "<object at %p: type at %p is freed>\n",
obj, (void *)Py_TYPE(obj));
}
else {
/* Display the traceback where the object has been allocated.