Getting VMWare tools to install on Oracle Linux can be a pain. Before you mount the cd and stuff, make sure you install the necessary libraries:
yum -y install gcc
yum -y install kernel-uek-devel-`uname -r`
yum -y install kernel-uek-headers-`uname -r`
If the headers one doesn’t work right, drop the “-`uname -r`” part and try again. worked for me =)