Re: remote target: compare a loaded file

[Thierry Moreau <Thierry.Moreau@Connotech.com>]

Torsten Mohr wrote:

> Hi,
>
> at the moment i write some code to implement a
> remote GDB server.  I suspect that the program
> i download into a target is changed somehow.
>
> Can i somehow easily "compare" the downloaded
> program?
>
> Something like:
>
> bash# arm-unknown-elf-gdb main.elf
> (gdb) target remote localhost:2000  // connect to target
> (gdb) load main.elf
> (gdb) compare_downloaded_file main.elf
>
> Is something like this possible?
>
> Can i somehow write a region of memory as binary into a
> file?
>

Yes, you can. Reading the .ELF file for an executable software image to
extract what is actually loaded in a remote embedded system is a simple
programming assignement. If you need the source code example of what you
whish to do, you may download the ABCD Proto-Kernel distribution
http://www.connotech.com/abcd_proto_kernel/abcd_proto_kernel_intro.htm
and look at the project elf_post_ld.

Sincerely,

--

- Thierry Moreau

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