[rsbac] help please with compiling erros with linux-2.6.7-rsbac-v1.2.3-bf1-pax-200406201350

[Amon Ott]

On Samstag, 26. Juni 2004 19:34, Matthias Jaenichen wrote:
> At 12:12 26.06.2004, Michal Purzynski wrote:
> > > On Freitag, 25. Juni 2004 15:29, sftf at yandex.ru wrote:
> > > > AO> Ok, another gcc 2.95 only error. Please try the attached 
bugfix.
> > > > AO> I have reactivated my good old gcc 2.95 ...
> > > >  What gcc version you prefer for kernel compiling?
> > > >  In kernel Documentation\Changes:
> > > >  "The recommended compiler for the kernel is gcc 2.95.x ...
> > > >  You may use gcc 3.0.x instead if you wish, although it may cause
> > > problems ..."
> > > >  And bigger kernel ?
> > > >  Can be it is time use gcc 3.0.x ?
> > >
> > > I have been using the latest Debian testing compiler here for a 
while, gcc
> > > 3.3. My server systems are all running 2.4 kernels, compiled with a 
GCC
> > > 2.95 - I am not running 2.6 kernels on critical systems, at least not 
yet.
> > >
> > > As far as I remember, some 2.6 kernels did not even compile properly 
with
> > > 2.95.

> >2.95 compilers are ok, but only for older systems. new glibc will not
> >compile with anything from 2.xx line. do not use 2.96 - it is broken
> >redhat version. from 3.x line - 3.3.3 and up are better choice than
> >anything other version and are recomended system compiler (kernel docs
> >are outdated here). 3.4 version - sometimes produces "faster" code but 
can
> >be quite buggy for now. so i would advice using gcc-3.3.3 or gcc-3.3.4 
for
> >now.
> 
> Did anyone try the Intel-Compiler? It is said to produce the fastest 
code. 
> And it should be compatible with GCC.

The Intel Compiler is not compatible enough to compile the kernel out of 
the box. In a recent German Linux Magazin article someone described all 
the changes he had to make to get it compiled. A major problem are 
different command line switches. He measured a few percent performance 
gain in some kernel functions, but not in all.

Amon.
-- 
http://www.rsbac.org - GnuPG: 2048g/5DEAAA30 2002-10-22
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