On Thu, 31 Aug 2006 09:11:35 -0700, Matt Thomas <matt@3am-software.com>
wrote:

> The fallout of my making PTRACE conditional has made me realize that
> #ifdefs in syscalls.master are never the right thing.  They just overly
> complicate the code.  The only downside to no #ifdefs in syscall.master
> is that *sysent.c always has a call to optional syscall.  This can
> be resolved by including a include files which will #define the syscall
> to sys_nosys.  Or the actual syscall could always return ENOSYS.
> 
Agreed, strongly.  (I'm more and more inclined to the notion that almost
all #ifdefs are evil, especially in the kernel, but that's a rant for
another time.)


		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb