Changes

To provide full debugging possibilities, the debugger has to know how virtual addresses are translated to physical addresses. If an OS that runs several processes at the same logical addresses (e.g. Linux) is used, the hardware MMU in the CPU only holds translation tables that allow the debugger memory accesses to the code/data of the kernel and the currently running process. The OS itself maintains the translation tables for all processes, because the OS is responsible for the reprogramming of the hardware MMU on a process switch. The debugger can access code/data from a not currently running process using the information from the OS MMU tables. An automatic table-walk method is available in TRACE32, walking through the OS MMU tables to find a valid logical-to-physical translation, in case it’s not already cached in TRACE32.

[[File:TRACE32 MMU page tables reduced.png|center|frame]]