https://bugs.kde.org/show_bug.cgi?id=406360
Bug ID: 406360
Summary: memcheck/tests/libstdc++.supp needs more supression
variants
Product: valgrind
Version: 3.15 SVN
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: memcheck
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
memcheck/tests/leak_cpp_interior might fail because depending on compiler and
arch used the suppression file used doesn't catch some allocations through the
DT_INIT_ARRAY functions.
That memory doesn't actually leak, it gets freed by the __gnu_cxx::__freeres
hook. But since this testcase shows leaks while running, not after the program
ends, it needs to suppress these allocations.
Proposed new variants (covers issues seen on fedora 30 with x86_64 and
ppc64le):
diff --git a/memcheck/tests/libstdc++.supp b/memcheck/tests/libstdc++.supp
index fad537f..28ab182 100644
--- a/memcheck/tests/libstdc++.supp
+++ b/memcheck/tests/libstdc++.supp
@@ -49,6 +49,9 @@
# still reachable: 72,704 bytes in 1 blocks
# suppressed: 0 bytes in 0 blocks
+# All the following suppressions are variants of
+# _dl_init -> call_init which calls the DT_INIT_ARRAY functions
+
{
malloc-leaks-cxx-stl-string-classes
Memcheck:Leak
@@ -61,6 +64,16 @@
obj:*lib*/ld-2.*.so
}
{
+ malloc-leaks-cxx-stl-string-classes-2
+ Memcheck:Leak
+ match-leak-kinds: reachable
+ fun:malloc
+ obj:*lib*/libstdc++.so*
+ fun:call_init.part.0
+ fun:_dl_init
+ obj:*lib*/ld-2.*.so
+}
+{
malloc-leaks-cxx-stl-string-classes-debug
Memcheck:Leak
match-leak-kinds: reachable
@@ -73,3 +86,13 @@
fun:_dl_init
obj:*lib*/ld-2.*.so
}
+{
+ malloc-leaks-cxx-stl-string-classes-debug2
+ Memcheck:Leak
+ match-leak-kinds: reachable
+ fun:malloc
+ obj:*
+ fun:call_init
+ fun:_dl_init
+ fun:_dl_start_user
+}
--
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