On Tue, Oct 6, 2009 at 12:33 PM, Leonidas . <[email protected]> wrote: > Hi, > > Not much of a kernel question, more to do with kernel makefiles. > > I am porting a piece of userspace code to kernel, but the code base > will remain same for user > and kernel versions of the code, my makefile will take flags to > compile for user/kernel > space. My module is going to be a standalone module, meaning I will > _never_ compile it as > part of Linux kernel build system, so I will have to write make files > for compiling standalone > modules, this part I am aware of. > > > Are there any examples where a common makefile is used? Any links etc? > Also are there any makefile tricks which are specific to kernel space? > > Like > #ifdef __kernel__ > kernel specific stuff > #endif > > > Also, I read somewhere that some of the CFLAGS have different meaning > in kernel etc? > > > -Leo. > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to [email protected] > Please read the FAQ at http://kernelnewbies.org/FAQ > >
Yes its good to keep code common between user and kernel. You can define you own macro e.g. USER while building user utility and pass it as compilation flag like -DUSER. And then in your C code you can check for definition of this macro like #ifdef USER. Hope this helps. -Vinit -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
