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Add valgrind suppressions for python code.

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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
This commit is contained in:
Andres Freund 2016-03-08 17:34:09 -08:00
parent 9a5f1073f5
commit fd1cf9d840
1 changed files with 66 additions and 0 deletions
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66
src/tools/valgrind.supp
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@ -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
}