system call

[Nitin Varyani]

I am using Ubuntu

On Sat, Apr 9, 2016 at 8:04 PM, Pranay Srivastava <pranjas at gmail.com> wrote:

> On Sat, Apr 9, 2016 at 7:51 PM, Nitin Varyani <varyani.nitin1 at gmail.com>
> wrote:
> > I have a 64 bit machine
> >
>
> Before changing the source try to build, install and boot your kernel.
> I'm sure there are some extra steps you might need to perform to boot your
> compiled kernel. Which distro are you using? I used OpenSuse for this work.
>
>
> > I am changing linux 3.5.4 source tree.
> >
> > I modified syscall_64.tbl
> > I had put your code in linux_3.5.4/arch/x86/pks_first/pks_first_call.c
> >
> > Then, I created pks_first/Makefile
> >
> > Modified the arch/x86/Kbuild
> >
> > Modified include/linux/syscalls.h
> >
> >
> > I ran "make menuconfig" and then simply exit.
> >
> > Then I ran
> >
> > "make"
> >
> > I saw that pks_first_call.o was created
> >
> > I then ran
> >
> > "make modules_install"
> > "make install"
> >
> > After then I restarted my system and booted linux 3.5.4. But it was stuck
> > half way.
> >
> > On Sat, Apr 9, 2016 at 7:39 PM, Pranay Srivastava <pranjas at gmail.com>
> wrote:
> >>
> >> Hi Nitin
> >>
> >> On Sat, Apr 9, 2016 at 5:03 PM, Nitin Varyani <varyani.nitin1 at gmail.com
> >
> >> wrote:
> >> > Neither of the solution is working.
> >> > @ Pranay: kernel is not booting after making the changes you have
> >> > mentioned.
> >> > somethings like
> >> > "dropping to shell
> >> > initramfs:"
> >> > is displayed on booting.
> >>
> >> I don't think this is related to the changes you made. I would advise
> >> you just build the sources for your
> >> distro and try to get to boot the kernel you compiled. Perhaps some
> >> steps you might have missed specific to your
> >> distro?
> >>
> >> >
> >> >
> >> > On Thu, Apr 7, 2016 at 1:08 PM, Pranay Srivastava <pranjas at gmail.com>
> >> > wrote:
> >> >>
> >> >> Nitin
> >> >>
> >> >>
> >> >> On Thu, Apr 7, 2016 at 11:53 AM, Nitin Varyani
> >> >> <varyani.nitin1 at gmail.com>
> >> >> wrote:
> >> >> >
> >> >> > Hi,
> >> >> >       I want to implement a system call as explained in Linux
> kernel
> >> >> > development by Robert Love.
> >> >> >
> >> >> > He does three things
> >> >> >  adding entry to entry.S
> >> >> > adding entry to asm/unistd.h
> >> >> > and adding the system call code to sched.c
> >> >> >
> >> >> >
> >> >> > and then make + make install
> >> >> >
> >> >> > I do not want to implement for all architectures but only for my PC
> >> >> > which is 64 bit. I am not able to locate files entry. S and
> unistd.h
> >> >> > which
> >> >> > he is telling in his tutorial.
> >> >> > Please help me out to figure out the exact steps. Please also
> mention
> >> >> > the linux kernel version I should use.
> >> >> >
> >> >>
> >> >> Please refer this. I wrote this quite a while back but should be good
> >> >> to
> >> >> go.
> >> >>
> >> >>
> >> >>
> >> >>
> http://codewithkernel.blogspot.my/2014/06/adding-new-system-call-in-linux-x86-and.html
> >> >>
> >> >> > Nitin
> >> >> >
> >> >> > _______________________________________________
> >> >> > Kernelnewbies mailing list
> >> >> > Kernelnewbies at kernelnewbies.org
> >> >> > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
> >> >> >
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >>         ---P.K.S
> >> >
> >> >
> >>
> >>
> >>
> >> --
> >>         ---P.K.S
> >
> >
>
>
>
> --
>         ---P.K.S
>
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