Linker Warning

Here is the explanation of what is happening:

Your code (or code auto-generated by BIOS) is calling a function named CLK_F_gethtime. There is no ordinary function of that name. Instead, there is a statement in the BIOS auto-generated link command file similar o "CLK_F_gethtime=real_function;". At the time the linker processes the relocations associated with calls to CLK_F_gethtime, it doesn't know that the true destination is real_function, and so it conservatively generates a trampoline to guarantee that the branch reaches the destination. A better alternative to that assignment is the new option --symbol_map=CLK_F_gethtime=real_function. Using --symbol_map gives the linker the critical information earlier, and allows it to avoid the trampoline in most cases.

So, right click on your project, select Build Options, select the Linker tab, and add the following command to the box:

--symbol_map=CLK_F_gethtime=real_function

The DSP/BIOS and Linker teams are aware of the warning and are investigating it. This does not affect functionality. 

For reference, please see page this page for a good explanation on trampolines:

http://tiexpressdsp.com/index.php?title=Code_Generation_Tools_FAQ#Q:_What.27s_the_benefit_of_using_near_calls_.2B_linker_trampolines_.v._all-far-calls.3F