[arch-commits] Commit in python2/trunk (PKGBUILD descr_ref.patch)

[Felix Yan]

    Date: Thursday, March 31, 2016 @ 08:43:03
  Author: fyan
Revision: 263481

upgpkg: python2 2.7.11-3

add a patch for FS#48761

Added:
  python2/trunk/descr_ref.patch
Modified:
  python2/trunk/PKGBUILD

-----------------+
 PKGBUILD        |   12 ++++++++---
 descr_ref.patch |   58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+), 3 deletions(-)

Modified: PKGBUILD
===================================================================
--- PKGBUILD	2016-03-31 05:20:41 UTC (rev 263480)
+++ PKGBUILD	2016-03-31 06:43:03 UTC (rev 263481)
@@ -6,7 +6,7 @@
 
 pkgname=python2
 pkgver=2.7.11
-pkgrel=2
+pkgrel=3
 _pybasever=2.7
 pkgdesc="A high-level scripting language"
 arch=('i686' 'x86_64')
@@ -19,8 +19,10 @@
             'python2-setuptools'
             'python2-pip')
 conflicts=('python<3')
-source=(http://www.python.org/ftp/python/${pkgver%rc?}/Python-${pkgver}.tar.xz)
-sha1sums=('c3b8bbe3f084c4d4ea13ffb03d75a5e22f9756ff')
+source=(http://www.python.org/ftp/python/${pkgver%rc?}/Python-${pkgver}.tar.xz
+        descr_ref.patch)
+sha1sums=('c3b8bbe3f084c4d4ea13ffb03d75a5e22f9756ff'
+          '8cc6ac63e909063eb16bbdabc0f0eac7d24ff0c1')
 
 prepare() {
   cd Python-${pkgver}
@@ -55,6 +57,10 @@
 
   # Workaround asdl_c.py/makeopcodetargets.py errors after we touched the shebangs
   touch Include/Python-ast.h Python/Python-ast.c Python/opcode_targets.h
+
+  # FS#48761
+  # http://bugs.python.org/issue25750
+  patch -p1 -i ../descr_ref.patch
 }
 
 build() {

Added: descr_ref.patch
===================================================================
--- descr_ref.patch	                        (rev 0)
+++ descr_ref.patch	2016-03-31 06:43:03 UTC (rev 263481)
@@ -0,0 +1,58 @@
+When calling tp_descr_get(self, obj, type), make sure that we own a reference to "self"
+
+diff -ru Python-2.7.9/Objects/typeobject.c Python-2.7.9-fixed//Objects/typeobject.c
+--- Python-2.7.9/Objects/typeobject.c	2014-12-10 16:59:57.000000000 +0100
++++ Python-2.7.9-fixed//Objects/typeobject.c	2015-11-27 20:39:58.276156800 +0100
+@@ -2542,6 +2542,7 @@
+     PyTypeObject *metatype = Py_TYPE(type);
+     PyObject *meta_attribute, *attribute;
+     descrgetfunc meta_get;
++    PyObject* res;
+ 
+     if (!PyString_Check(name)) {
+         PyErr_Format(PyExc_TypeError,
+@@ -2563,6 +2564,7 @@
+     meta_attribute = _PyType_Lookup(metatype, name);
+ 
+     if (meta_attribute != NULL) {
++        Py_INCREF(meta_attribute);
+         meta_get = Py_TYPE(meta_attribute)->tp_descr_get;
+ 
+         if (meta_get != NULL && PyDescr_IsData(meta_attribute)) {
+@@ -2570,10 +2572,11 @@
+              * writes. Assume the attribute is not overridden in
+              * type's tp_dict (and bases): call the descriptor now.
+              */
+-            return meta_get(meta_attribute, (PyObject *)type,
++            res = meta_get(meta_attribute, (PyObject *)type,
+                             (PyObject *)metatype);
++            Py_DECREF(meta_attribute);
++            return res;
+         }
+-        Py_INCREF(meta_attribute);
+     }
+ 
+     /* No data descriptor found on metatype. Look in tp_dict of this
+@@ -2581,6 +2584,7 @@
+     attribute = _PyType_Lookup(type, name);
+     if (attribute != NULL) {
+         /* Implement descriptor functionality, if any */
++        Py_INCREF(attribute);
+         descrgetfunc local_get = Py_TYPE(attribute)->tp_descr_get;
+ 
+         Py_XDECREF(meta_attribute);
+@@ -2588,11 +2592,12 @@
+         if (local_get != NULL) {
+             /* NULL 2nd argument indicates the descriptor was
+              * found on the target object itself (or a base)  */
+-            return local_get(attribute, (PyObject *)NULL,
++            res = local_get(attribute, (PyObject *)NULL,
+                              (PyObject *)type);
++            Py_DECREF(attribute);
++            return res;
+         }
+ 
+-        Py_INCREF(attribute);
+         return attribute;
+     }
+