Manipulating memory contents by functions in callbacks

KaMous · Joined: 17 Feb 2011 Posts: 9

Hello,

how can I manipulate memory by means of callbacks? Using the armm processor model and the non-TLM platform model, I'm trying to set up callbacks on memory address ranges so that values stored to them are modified in order to inject faults. But if I set up a read callback that calls

DuncGrah · Posted: Thu Nov 10, 2011 5:38 am Post subject:

This is the same question posted here

A callback applied to an address replaces the memory location so what happens here is
1. Access address
2. callback is called
3. callback accesses address
repeat from 2.

Maybe, there should be a detection of a recursively called callback that would detect the problem and stop with an error.

KaMous · Joined: 17 Feb 2011 Posts: 9

Thank you for your reply regarding the use of an MMC for what I need to do. I've been able to achieve what I wanted to.

So, am I getting this correctly: that the memory callback generated by the icmAdd...Callback() function is not executed in addition to the ordinary memory access, but rather instead of it?

DuncGrah · Posted: Mon Nov 21, 2011 1:36 am Post subject:

Yes that is correct.

Think of it this way, you create the memory behavior by adding a memory object or by a adding a memory callback over the address range you want to use.