Dynamic Kernel Linker compilation issues

[Russell Haley]

Hi There,

This is just my personal opinion, but I find these kinds of questions are
better answered on the forums or in one of the mailing lists available at
https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/eresources-mail.html.
Searching information like this out can be frustrating, you will wind up
doing the dance of google, manpages (https://www.freebsd.org/cgi/man.cgi)
and the handbooks (https://www.freebsd.org/docs.html).

disclaimer: I'm only a little further ahead than you are, but I worked
through this problem too.

Anyway, your project will need to link to kernel source (as stated in the
error) to build your pseudo (sudo?) driver. You will need to fetch the
source code using subversion. This is in the handbook but it's a little
scattered:

https://www.freebsd.org/doc/handbook/updating-upgrading.html
https://www.freebsd.org/doc/handbook/svn.html
https://www.freebsd.org/doc/handbook/kernelconfig.html

Again, the dance goes:

1) google: "Build freebsd from source". If nothing found: go to 2.
2) Search the FreeBSD website. The search isn't great so sometimes you just
have to grab a coffee and sit down and read the handbook (which isn't a bad
thing really).
3) Then manpages for specifics about each command.

Good luck,

Russ

On Wed, Dec 16, 2015 at 6:32 AM, Louis NOMINE <lnomine at sii.fr> wrote:

> Hi,
>
> I'm currently working on a project where I need to create a PCI device
> driver that can work on freeBSD. In order to learn how o do so I'm using
> the doccuentation I've found on your website (
> https://www.freebsd.org/doc/en_US.ISO8859-1/books/arch-handbook/driverbasics-kld.html
> )
>
> I have created both files (source code and the makefile). when I try to do
> a make operation I get the following error :
>
> make: "/usr/share/mk/bsd.kmod.mk" line 12: Unable to locate the kernel
> source tree. Set SYSDIR to override.
>
> I'm using PCBSD 10 and I don't know how to solve my problem.
>
> Do you know how to help me ?
>
> Thanks in advance,
>
> Regards,
>
> Louis Nominé
>
>
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