[NSWI004] Application image not loaded to physical memory
Vojtech Horky
horky at d3s.mff.cuni.cz
Sun Jan 19 20:40:46 CET 2020
Hello.
Dne 19. 01. 20 v 20:20 Jakub Matěna napsal(a):
> we tried to copy application image from physical address to virtual
> memory of the new process. After a while, we found out that the problem
> is, that there is no image at the physical address. Just zeros. We used
> our debug function to dump physical memory.
How much of the memory you dumped? The application image is created from
virtual address 0 (it has to be because of jump target addresses), thus
first 4 pages are filled with zeros (see the application linker script),
code starts at 0x4000.
Hope this helps,
- VH
>
> We would appreciate some hint.
>
> Thank you!
>
> Commit link:
> https://gitlab.mff.cuni.cz/teaching/nswi004/winter-2019-20/team-SorryJako/commit/4a9a7e7a80b359fd64f3339eebafc8ad71d48ec7
>
> --
> Sincerely Jakub Matěna
>
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