bpo-34569: Fix subinterpreter 32-bit ABI, pystate.c/_new_long_object() (gh-9127)

aixtools · ericsnowcurrently · commit a909460a09cc · 2019-01-11T11:17:03.000-07:00
This fixes ShareableTypeTests.test_int() in Lib/test/test__xxsubinterpreters.py.
diff --git a/Misc/NEWS.d/next/Tests/2018-09-09-14-36-59.bpo-34569.okj1Xh.rst b/Misc/NEWS.d/next/Tests/2018-09-09-14-36-59.bpo-34569.okj1Xh.rst
@@ -0,0 +1,2 @@
+The experimental PEP 554 data channels now correctly pass negative PyLong
+objects between subinterpreters on 32-bit systems. Patch by Michael Felt.
diff --git a/Python/pystate.c b/Python/pystate.c
@@ -1467,7 +1467,7 @@ _str_shared(PyObject *obj, _PyCrossInterpreterData *data)
 static PyObject *
 _new_long_object(_PyCrossInterpreterData *data)
 {
-    return PyLong_FromLongLong((int64_t)(data->data));
+    return PyLong_FromLongLong((intptr_t)(data->data));
 }
 
 static int

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+The experimental PEP 554 data channels now correctly pass negative PyLong`
	`2`	`+objects between subinterpreters on 32-bit systems. Patch by Michael Felt.`
Original file line number	Diff line number	Diff line change
`@@ -1467,7 +1467,7 @@ _str_shared(PyObject obj, _PyCrossInterpreterData data)`
`1467`	`1467`	`static PyObject *`
`1468`	`1468`	`_new_long_object(_PyCrossInterpreterData *data)`
`1469`	`1469`	`{`
`1470`		`- return PyLong_FromLongLong((int64_t)(data->data));`
	`1470`	`+ return PyLong_FromLongLong((intptr_t)(data->data));`
`1471`	`1471`	`}`
`1472`	`1472`
`1473`	`1473`	`static int`