Hi,
well, how should this be possible with the help of an emulator like bochs? All you have is a binary image containing windows that is executed by bochs, how do you want to find out which API functions are called? At least you need a windows image that also contains debug symbols so you can find out which addresses are related to a OS API call. When you have this you may extend the simulation of the call-instruction to trace the OS API calls.
Ciao, Fabian
2006/3/25, Saulius Krasuckas saulius2@ar.fi.lt:
Hi,
I mean Windows there - my primary aim is to monitor WinAPI calls. There exists quite a few of monitor apps to achieve this. But their nature is soft-intrusive - they patch system DLLs on disk or PE images in memory.
I'd like to monitor calling of a functions from a lower-level side. One possibility is to rewrite system DLLs, which is hard in a case of Windows. Maybe another possibility can be to run OS in machine emulator and to break on reading/executing some virtual memory addresses? I imagine physical memory maps into linear addresses which maps into virtual addresses (perhaps into unshared space of each win32 process).
Then it would be nice to implement a Debug Logging similar to one from the Wine project. [*]
What effort is needed to implement breaking of emulation on execution of given/defined virtual addresses (plus reading a CPU state and virtual memory) of different Windows OS versions inside machine emulator?
Can such code be put as some plugin to BOCHS or so? Maybe I need to look at the different machine virtualization projects like Qemu?
[*] http://winehq.org/site/developer-cheatsheet
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