The output of your command "ldd /usr/bin/gcc" is:

	linux-vdso.so.1 (0x00007fff9c333000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f2b7ce00000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f2b7d0c6000)