Re: [rtl] root id

[Wolfgang Denk <wd@denx.de>]

In message <3A9447A8.33037D4A@radar.mcgill.ca> Frederic Cazenave wrote:
> 
> > > > > I have installed this files :
> > > > >     521612 -rw-r--r--    1 root     root     19090206 Feb 14 20:56
> > > > > linux-2.2.18.tar.gz
> > > > >     521622 -rw-r--r--    1 root     root       450860 Feb 16 15:10
> > > > > rtlinux-3.0.tar.gz
...
> gcc -v
> Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
> gcc version 2.96 20000731 (Red Hat Linux 7.0)

GCC as shipped with RH 7.0 is, ummm..., broken. Let's call it broken.

You cannot use it to  compile  Linux  kernel  code.  RedHat  includes
another  (older, working) version of GCC for kernel code; it's called
"kgcc":

-> gcc -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
gcc version 2.96 20000731 (Red Hat Linux 7.0)
-> kgcc -v
Reading specs from /usr/lib/gcc-lib/i386-glibc21-linux/egcs-2.91.66/specs
gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)


You will find something like that in RedHat's kernel Makefiles:

	CC := $(shell if which $(CROSS_COMPILE)kgcc > /dev/null 2>&1; \
	then echo $(CROSS_COMPILE) kgcc; else echo $(CROSS_COMPILE)gcc; fi) \
	-D__KERNEL__ -I$(HPATH)

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
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