Running bin file from a module


 
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# 1  
Old 03-15-2011
Running bin file from a module

Hi I actually wrote a simple module and I need to call a bin file from that module. Could you give me some hints how to do that?
(I tried with stdlib.h and 'system()', but cannot call that function from a module).

Regards.
# 2  
Old 03-15-2011
I assume module means kernel module.

The reason why system() doesn't work is b/c the libc functions are not available within the kernel. You can only access files and use its functions which are in the kernel. Therefore I don't know a good way of executing it from within the kernel. It actually is not a good thing to do anyway. You don't want to run userspace programs in kernel mode.
FWIW: I'm working on a kernel module myself and also use part of a different program, and what I did was to port the needed sourcecode into my program.

Maybe we can give you more help if you tell us what you want to do in a little more detail
# 3  
Old 03-15-2011
You could check out the way the kernel runs INIT. That's one of the rare, few things the kernel actually runs (often the only one in fact).
# 4  
Old 03-15-2011
I am writing network driver in linux for hardware with UEFI driver onboard (only basic functionality).
My driver is to load that UEFI driver and force it to work. Problem is that actually I do not have mentioned hardware and have to simulate that (just create sort of template).
# 5  
Old 03-15-2011
You could do it with module dependencies instead of hacking it to run a userspace program to load a module dependency...
# 6  
Old 03-15-2011
I will try to be more precise.
In final version my driver would load UEFI driver from hardware's flash.
But I do not have that hardware for now and I have to create sort of dummy driver first.

What I want is to load bin file from HDD (final version would load bin from hardware's flash). I assume, that loading bin from HDD and loading bin from flash is kind of similar task and I can use generic solution.

At this moment it does not matter what that bin file contains.
# 7  
Old 03-15-2011
Quote:
Originally Posted by Chrisdot
What I want is to load bin file from HDD (final version would load bin from hardware's flash). I assume, that loading bin from HDD and loading bin from flash is kind of similar task and I can use generic solution.
I wouldn't assume so. It's the kernel's job to make it generic.
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