Add valgrind suppressions for python code.

anarazel · anarazel · commit 2f1f4439306d · 2016-03-08T19:40:58.000-08:00
Python's allocator does some low-level tricks for efficiency; unfortunately they trigger valgrind errors. Those tricks can be disabled making instrumentation easier; but few people testing postgres will have such a build of python. So add broad suppressions of the resulting errors. See also https://svn.python.org/projects/python/trunk/Misc/README.valgrind This possibly will suppress valid errors, but without it it's basically impossible to use valgrind with plpython code. Author: Andres Freund Backpatch: 9.4, where we started to maintain valgrind suppressions
diff --git a/src/tools/valgrind.supp b/src/tools/valgrind.supp
@@ -146,3 +146,69 @@
 	fun:pg_atomic_write_u64_impl
 	fun:pg_atomic_init_u64_impl
 }
+
+
+# Python's allocator does some low-level tricks for efficiency. Those
+# can be disabled for better instrumentation; but few people testing
+# postgres will have such a build of python. So add broad
+# suppressions of the resulting errors.
+# See also https://svn.python.org/projects/python/trunk/Misc/README.valgrind
+{
+   python_clever_allocator
+   Memcheck:Addr4
+   fun:PyObject_Free
+}
+
+{
+   python_clever_allocator
+   Memcheck:Addr8
+   fun:PyObject_Free
+}
+
+{
+   python_clever_allocator
+   Memcheck:Value4
+   fun:PyObject_Free
+}
+
+{
+   python_clever_allocator
+   Memcheck:Value8
+   fun:PyObject_Free
+}
+
+{
+   python_clever_allocator
+   Memcheck:Cond
+   fun:PyObject_Free
+}
+
+{
+   python_clever_allocator
+   Memcheck:Addr4
+   fun:PyObject_Realloc
+}
+
+{
+   python_clever_allocator
+   Memcheck:Addr8
+   fun:PyObject_Realloc
+}
+
+{
+   python_clever_allocator
+   Memcheck:Value4
+   fun:PyObject_Realloc
+}
+
+{
+   python_clever_allocator
+   Memcheck:Value8
+   fun:PyObject_Realloc
+}
+
+{
+   python_clever_allocator
+   Memcheck:Cond
+   fun:PyObject_Realloc
+}
