Command to list headers included in a .ko files

theoutkast · 07-11-2011, 05:52 AM

Hello Everybody,

I don't know if it is right place to ask my question, so please move it if it is not.

Let me explain you the context of my issue:
In my project, I use strncmp/strncpy fonctions.
But during the compilation/link I have this error:

Quote:

static declaration of 'strncpy' follows non-static declaration

That means that string.h is already included, but not the right one.

So I would like to know if there is a command to show all headers included in a ko module.

Thanks for the help!

Guttorm · 07-11-2011, 06:37 AM

Hello

I don't know much about .ko files, but the objdump/readelf commands are used for getting info about ELF files.

man objdump
man readelf

theoutkast · 07-11-2011, 07:46 AM

Thank you Guttorm for the speed of your answer.

I looked around readelf/objdump but if I understand well, it does'nt seem to be what I'm looking for

I'm looking for a command which allow me to show all .h (and their location) used to build my module (.ko).

Thank you!

Aquarius_Girl · 07-11-2011, 07:56 AM

Are you saying that you are trying to include string.h in a kernel module?

theoutkast · 07-11-2011, 08:16 AM

Yes

It is a specific string.h write for kernel land.

I find command "nm -s module.ko", but it shows me where symbol is used, but not which .h it is from...

Aquarius_Girl · 07-11-2011, 08:21 AM

theNbomr · 07-11-2011, 10:12 AM

You could use grep to find all "#include"s in all C source files for the particular module. Following up on that, you would have to recursively visit each included header. This would take some programming, best done in AWK or Perl. One factor is that the recursion is not a static thing, as the compiler takes the -I (uppercase eye) argument that modifies its list of places to look for headers. You would have to build that capability into your tool.

--- rod.