MMU Support

Full integrated support of processor's MMU

The debugger contains a dedicated MMU support for each processor's MMU, including cache, TLBs, PTEs, translation tables, and whatever the processor incorporates.

Display of processor MMU registers

Display of all processor internal MMU registers

Easy access and modifications to MMU registers

Display of MMU table entries

The debugger walds through the whole MMU table and displays address translations, access flags, permission bits etc.

Display of address translation table

Shows all virtual to physical address translations currently set on the target.

"Shadowing" MMU address translation inside debugger

Debugger keeps a copy of target MMU tables

Quick reference of address translations

Fast access to virtual and physical addresses

Access to virtual addresses even if target MMU tables are incomplete or if MMU entries are hidden from processor

Reverse translation for bus traces

Full virtual and physical access to target at any time

Access any physical address at any time

Access any virtual address at any time

Use virtual and physical addresses simultaneously

Debugger has optionally write access to write protected memory areas

Either prohibit debugger from writing to write protected memory

Or permit debugger write access to write protected memory

• to enable software breakpoints
• to allow patching
• to change data

memory area keeps write protected for target application

Detection and decoding of software MMU tables built by operating systems

Debugger knows and walks through OS specific MMU tables

Currently supported: Linux, QNX, Windows CE, Symbian OS, CHORUS

Support for several user space MMU tables side by side

Debugger supports several process' MMU tables at once

Access to several user processes at a time

Supporting processes that share same virtual addresses, but use different physical addresses

• e.g. debugging process 1, setting breakpoints on process 2 and watching variables of process 3, all simultaneously.