Question

I need a log of all the memory locations a C program modifies during its execution. The problem is a bit more involved than watching a region of memory using gdb/valgrind, because I do not have the start or end addresses for the memory region. Basically, whenever and wherever the program does a memory update (in the form of a push, move to a memory operand, etc), I need that memory address as well as the value written at that address.

Does anyone have any suggestions or advice?

Thanks!

Answer 1

You can monitor memory stores, reads, contents of registers, etc. with Pin, a tool created by Intel. Here is a project from MIT that simulates a processor cache (instruction and/or data). Pin is used to create a detailed instruction trace, and the trace is then used as input to the cache simulator.