TMS320F28379D: Access to linker symbols

Part Number: TMS320F28379D

Hello,

how can I get access to symbols generated from the linker in a c-file?

For example (copied from the map file):

1     00000400  __stack                               
1     00000800  __STACK_END           

I want to check the usage of the stack during runtime.

Thank you very much

Ralf