/usr/src/gcc-4.4/debian/lib64objc2.symbols is in gcc-4.4-source 4.4.7-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | libobjc.so.2 lib64objc2 #MINVER#
#include "libobjc2.symbols.common"
__gnu_objc_personality_v0@Base 4.2.1
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