[Solved] Re: [Ltib] a's in integer output

[Tobias Simon]

Hello Stuart,

I use the 4.1 toolchain and it is working now, although the Kernel compilation 
raised a lot of warnings(i also had to apply the 4.1 gcc patch to the 
kernel).
So I think there's a bug in the 3.4 Toolchain. You may forward this 
information to the other Freescale developers.


Best Regards,
Tobi

> Hi Tobi,
>
> Try the newer freescale-coldfire-m68k-linux-gnu-4.1-30.i686.rpm, maybe
> that will fix the problem.  Can you let me know what you find.
>
> Thanks, Stuart
>
> On Tue, 2007-01-23 at 13:58 +0100, Tobias Simon wrote:
> > Hello Stuart,
> >
> > Here comes my CONFIG_TOOLCHAIN:
> > "mtwk-lnx-cfv4e-gcc-3.4.0-glibc-2.3.2-v4e-0.28-8.i686.rpm"
> >
> > and my CONFIG_TOOLCHAIN_CFLAGS:
> > "-mcfv4e"
> >
> > These settings were stolen from an earlier version of the "mcf547x_8x"
> > platform. I will now try it with the 4.1 toolchain.
> >
> > Regards,
> > Tobi
> >
> > > Hi Tobi,
> > >
> > > Can you send me a copy of your config/platform/<target>/.config, or let
> > > me know what the values of CONFIG_TOOLCHAIN and CONFIG_TOOLCHAIN_CFLAGS
> > >
> > > I notice in CVS that for the cobra5475 it is
> > > mtwk-lnx-cfv4e-gcc-3.4.0-glibc-2.3.2-v4e-0.28-8.i686.rpm, if you're
> > > using that, you could try adding a later toolchain that we have for the
> > > mcf547x_8x with a patch like this:
> > >
> > > diff -u -r1.6 -r1.9
> > > --- config/platform/mcf547x_8x/main.lkc 24 May 2006 15:41:23 -0000     
> > > 1.6 +++ config/platform/mcf547x_8x/main.lkc 11 Dec 2006 10:42:58 -0000 
> > >     1.9 @@ -42,7 +42,7 @@
> > >  comment "Choose your toolchain"
> > >  choice
> > >      prompt "Toolchain"
> > > -    default TOOLCHAIN1
> > > +    default TOOLCHAIN2
> > >      help
> > >          This menu will help you choose the cross toolchain to use to
> > > build your packages with.  If you choose none, you can enter the @@
> > > -51,6 +51,8 @@
> > >
> > >      config TOOLCHAIN1
> > >          bool "gcc-3.4.0-glibc-2.3.2 (for v4e)" if GLIBC
> > > +    config TOOLCHAIN2
> > > +        bool "gcc-4.1 for v4e" if GLIBC
> > >      config TOOLCHAIN_CUSTOM
> > >          bool "custom"
> > >  endchoice
> > > @@ -58,10 +60,12 @@
> > >  config TOOLCHAIN
> > >      string
> > >      default mtwk-lnx-cfv4e-gcc-3.4.0-glibc-2.3.2-v4e-0.28-8.i686.rpm
> > > if TOOLCHAIN1 +    default
> > > freescale-coldfire-m68k-linux-gnu-4.1-30.i686.rpm if TOOLCHAIN2
> > >
> > >  config TOOLCHAIN_PATH
> > >      string
> > >      default "/opt/mtwk/usr/local/m68k-linux/gcc-3.4.0-glibc-2.3.2-v4e"
> > > if TOOLCHAIN1 +    default
> > > "/opt/freescale/usr/local/gcc-4.1-glibc-2.3/m68k-glibc/freescale-coldfi
> > >re-4 .1" if TOOLCHAIN2 string "Supply your toolchain path" if
> > > TOOLCHAIN_CUSTOM
> > >
> > >  config CUSTOM_TOOLCHAIN_PREFIX
> > > @@ -73,6 +77,7 @@
> > >  config TOOLCHAIN_PREFIX
> > >      string
> > >      default "m68k-linux-" if TOOLCHAIN1
> > > +    default "m68k-linux-gnu-" if TOOLCHAIN2
> > >      default CUSTOM_TOOLCHAIN_PREFIX if TOOLCHAIN_CUSTOM
> > >
> > >  config TOOLCHAIN_CFLAGS
> > >
> > >
> > > It you add this toolchain you'll need to run ./ltib --configure and
> > > select the new toolchain.  It will force a full rebuilt.
> > >
> > > If this is the fix, then I'll let the Coldfire team know that there is
> > > a problem with that toolchain.
> > >
> > > Regards, Stuart
> > >
> > > On Tue, 2007-01-23 at 09:05 +0100, Tobias Simon wrote:
> > > > Hello List,
> > > >
> > > > I found out that the a's replace the 0's. I was able to write two
> > > > programs (one not working correctly, one working correctly):
> > > >
> > > > not working (prints a's):
> > > >
> > > > int main(void)
> > > > {
> > > >   unsigned int i, size = 100;
> > > >   for (i = 0; i < 100; i++)
> > > >      printf("%2llu %% complete\n", (unsigned long long)i * 100 /
> > > > size); return(0);
> > > > }
> > > >
> > > >
> > > > working:
> > > >
> > > > int main(void)
> > > > {
> > > >   unsigned int i, size = 100;
> > > >   for (i = 0; i < 100; i++)
> > > >      printf("%2lu %% complete\n", (unsigned long)i * 100 / size);
> > > >   return(0);
> > > > }
> > > >
> > > > I use linux-2.6.10-cf-COBRA5475 but I don't think it's a Kernel
> > > > Problem. It seems to be the compiler or glibc.
> > > >
> > > > Regards,
> > > > Tobi

-- 
Tobias Simon
senTec Elektronik GmbH
address@hidden