* Narasimhamurthy Giridhar (giridhar@cs.clemson.edu) wrote: > > Unfortunately, thats just a typo *only* in the mail and not in the code I > have changed. > But I did get it working. I am just not sure if its the right way of doing > it. I changed /usr/include/asm/unistd.h by adding #define __NR_mycall 191 > to it . I have made similar change in /usr/src/linux/include/asm/unistd.h > also. > > Is this good, safe etc. ??? No. Like I mentioned last time, just manually #define __NR_mycall 191 in you user program. You should _not_ alter your systems header files, it's a Bad Idea (TM). The only thing you need the header file for is the _syscall1 expansion (try gcc -E and you'll see what I mean). And the __NR_mycall macro is needed just to ensure you call into the kernel with the right syscall number (so it can jump to the right entry in the syscall table). The change to asm/unistd.h is, of course, necessary in the kernel source. hope that clarifies, -chris -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
