Re: errno assignment in _syscall macros and glibc

[Ralf Baechle <ralf@oss.sgi.com>]

On Sun, Jun 25, 2000 at 10:25:48PM +0100, Alan Cox wrote:

> > Sure; these days glibc is more or less synonym with libc and I was using
> > it in that sense.
> > 
> > What small, portable libcs do we have available anyway?  Some mipers will
> > want one.
> 
> I've been playing with the Linux8086 libc which is tiny but not portable when
> Prumpf pointed out that Cygnus newlib is designed for precisely this job. Its
> about 250K MIPS32 (my PDA has mips32/mips64 but not mips16 - duh!!)

Oh promised lands of small happy libcs :-)

Back to the original problem - the i386 <asm/unistd.h> __syscall_return
macro which is used by the _syscallX macros set the errno variable - even
inside the kernel.  In the age of SMP this looks broken - at least nothing
seems to rely on it.  So how about removing the whole errno thing from
there?

  Ralf