kernel-kernel call communication

aureliano · #1 (**permalink**) 06-04-2007

hi all!
i have developed a mechanism in system.c to count how many times each kernel call is called. The results are held in an array in system.c . What i want to do is to create a new kernel call which will print this array. I need help in passing the array from system.c to the new kernel call.
how can this be done?

porter · #2 (**permalink**) 06-04-2007

I suggest you indicate the operating system you intend a solution for.

aureliano · #3 (**permalink**) 06-04-2007

thanks for the reply, the operating system is minix.

porter · #4 (**permalink**) 06-04-2007

Is the array held within the kernel? Why not provide an API that returns a copy of the array to a user program which can then print it out? If so ioctl/read etc should provide examples of how to transfer data from the kernel to user memory space using a syscall.

aureliano · #5 (**permalink**) 06-04-2007

the array is held in the kernel and a kernel call do_XXXXX prints it out. these are the specifications.

porter · #6 (**permalink**) 06-05-2007

Quote:

Originally Posted by aureliano

these are the specifications.

Who made the specifications?

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