System calls - Opensuse

System calls - Opensuse

My initial attempts to build a system call with the help of this question
My distro information: Linux linux-epq2.site 3.7.10-1.16-default #1 SMP
Fri May 31 20:21:23 UTC 2013 (97c14ba) x86_64 x86_64 x86_64 GNU/Linux
In the current version of my program, that will allow me to embed this as
a system call does have a main (stupidity to even say that, but just to
make things more explicit).
In my current program:
It takes in two inputs from the user, and does some calculations and gives
the output as the graph and some data.
My initial attempt was to call that program via execlp available in unistd
library like this:
#include<linux/linkage.h>
#include<linux/kernel.h>
#include<unistd.h>
asmlinkage long graph(const char* granularity, char* application)
{
pid_t child;
child = fork();
if (!child) {
execlp("./system-call", granularity, application, NULL);
}
sleep(0.2);
return 0;
}
But when I am trying to compile the kernel (note: same kernel version) and
the old config file (if necessary i'll also upload the config file). I get
the following error:
linux-3.7.10 % make
make[1]: Nothing to be done for `all'.
make[1]: Nothing to be done for `relocs'.
CHK include/generated/uapi/linux/version.h
CHK include/generated/utsrelease.h
CALL scripts/checksyscalls.sh
CHK include/generated/compile.h
make[3]: `arch/x86/realmode/rm/realmode.bin' is up to date.
CHK kernel/config_data.h
CC test/graph.o
test/graph.c:10:19: fatal error: unistd.h: No such file or directory
compilation terminated.
make[1]: *** [test/graph.o] Error 1
make: *** [test] Error 2
make 4.50s user 1.27s system 75% cpu 7.626 total`
I checked if glibc was installed or no, i see that all the kernel header
files ARE available.
zypper search glibc
Loading repository data...
Reading installed packages...
S | Name | Summary
| Type
--+--------------------------+-------------------------------------------------------+--------
i | glibc | Standard Shared Libraries (from the GNU C
Library) | package
i | glibc-32bit | Standard Shared Libraries (from the GNU C
Library) | package
i | glibc-devel | Include Files and Libraries Mandatory for
Development | package
i | glibc-devel-32bit | Include Files and Libraries Mandatory for
Development | package
i | glibc-devel-static | C library static libraries for -static
linking | package
i | glibc-devel-static-32bit | C library static libraries for -static
linking | package
i | glibc-extra | Extra binaries from GNU C Library
| package
i | glibc-info | Info Files for the GNU C Library
| package
i | glibc-locale | Locale Data for Localized Programs
| package
i | glibc-locale-32bit | Locale Data for Localized Programs
| package
i | glibc-utils | Development utilities from GNU C library
| package
i | linux-glibc-devel | Linux headers for userspace development
| package
I checked to see if it is availble in the new kernel dump, and it is not
available.
IS IT safe to copy unistd.h from /usr/include/unistd.h to the new kernel
dump which I want to compile?
OR is there another way around it?