Yes I did run sudo apt-get install build-essential linux-headers-$(uname
-r) to download the necessary headers. I also ran an apt-get for source
files and it did install a whole bunch of them but Im not under the
impression that you actually need the source files as well since they
suppose to come with the OS?
The thing its complaining about... unistd_32.h appears to really be
missing. Could this be because of a 64Bit version of the OS? Maybes just
doesnt install it because its not necessary. But that wouldnt make sense
because in unistd.h the only include there is will be the unistd_32.h
and nowhere inside stands anything of #include<unistd_64.h>
On 9/11/2014 5:06 PM, Gustavo Bittencourt wrote:
Did you install the kernel source or at least the kernel headers?
---------- Forwarded message ----------
From: *testlaster* <[email protected] <mailto:[email protected]>>
Date: Thu, Sep 11, 2014 at 11:13 AM
Subject: Re: My simple kernel module wont compile
To: [email protected]
<mailto:[email protected]>
Hi Gustavo
I tried your suggestions.
The first line didn't work because I seem to not have a build
directory there.
And the second one did exactly the same as mine did.
On 9/11/2014 3:49 PM, Gustavo Bittencourt wrote:
Maybe you should replace the KERNEL_DIR definition in MAKEFILE. My
suggestions:
KERNEL_DIR:=/usr/src/linux-headers-$(shell uname -r)/build
or
KERNEL_DIR:=/lib/modules/$(shell uname -r)/build
On Thu, Sep 11, 2014 at 8:12 AM, testlaster <[email protected]
<mailto:[email protected]>> wrote:
Hey Guys
All im trying to do here is learn about make files and how to
link linux header files stored in
/usr/src/linux-headers-3.13.0-35-generic to my program that im
writing.
So far ive been getting the simplest of Kernel Modules to compile
and load in Linux but nothing useful . The moment I delve deeper
I seem to get missing header file errors when using "make".
All I want to do is write from Kernel space into user space and
visa verse. I will be dumping allocated PCI memory blocks into files.
I will also have to edit registers of the PCI to be able to make
triggers go off by setting bits high etc.
But this is just an introduction to it all and im already having
trouble compiling.
Now im not 100% sure if its missing header files but the errors
is quite large.
This is my Pastebin of the C MODULE Code :
pastebin.com/lWPBR8DJ <http://pastebin.com/lWPBR8DJ>
And here it the PASTEBIN of my MAKEFILE and its errors:
pastebin.com/ffT1F26N <http://pastebin.com/ffT1F26N>
ALSO...Does anybody know of a good tutorial on how to write a PCI
driver in Kernel space using kernel modules...also how to send
data from and to the module from UserSpace?
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