+2018-02-16 Yao Qi <yao.qi@linaro.org>
+
+ * block.c (block_namespace_info): Inherit allocate_on_obstack.
+ (block_initialize_namespace): Use new.
+ * dwarf2read.c (dwarf2_per_objfile): Inherit allocate_on_obstack.
+ (dwarf2_free_objfile): Use delete.
+ * gdbtypes.c (type_pair): Inherit allocate_on_obstack.
+ (copy_type_recursive): Use new.
+ * gdb_obstack.h (allocate_on_obstack): New.
+
2018-02-15 Yao Qi <yao.qi@linaro.org>
PR gdb/22849