Re: Help with relocation truncation problems on m5235 coldfire target

Hi Larry,

On Fri, Feb 8, 2013 at 4:11 PM, Larry Baker <[email protected]> wrote:
> Steve,
>
> I found this at
> http://gcc.gnu.org/onlinedocs/gcc-4.5.4/gcc/M680x0-Options.html.  I don't
> know if gcc 4.3.2 has this option, but it's worth a try.  Maybe you only
> have to use this in certain routines?  Maybe not, if there is just one GOT
> for the entire program.  Other google hits for "relocation truncated to fit:
> R_68K_GOT16O" said to remove XIP options or shared library, like -msep-data.
> I'm not sure that is possible on a ColdFire.  I noticed you are using -O1.
> Did you try -Os?  My ColdFire distribution uses -Os.

Yes, my research came up with the -mxgot option also. Tried that and
came up with a problem where the elf2flt doesn't like the larger GOT
format. Aparently it's a problem my client has been fighting with for
a long time and I was able to define out a log statement and that
killed enough strings (5,000 log strings!) in the project to get it to
build. Basically I was told: "Get it to build and we'll deal with the
problem over here."  Done.

-Os helped some also, but not with the GOT issue. But size-wise it
helped. Upgrading to Linux 3.2 from 2.4 (and the other apps) has
increased our total image size by nearly 50% and we're starting to
bump into size issues. I'm having to kill off some useful technician
and debugging utilities now.

Thanks for the help.

- Steve
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