Linking very large programs with inadequate branch displacements

[Bill Yoder]

Dear Hans-Peter, Alan, Nick, and HJ:

>> What we'd like to do is to open up a hole in the bfd output section
>> and insert a springboard in it, so that the offending instruction can
>> instead branch to that nearby springboard and then use an absolute
>> address embedded in the springboard to jump to the far-distant  
>> target.
>>
>
> Usually referred to as a "trampoline" or "stub".  For yet
> another implementation, see bfd/elf64-mmix.c, handling of
> R_MMIX_PUSHJ_STUBBABLE.  See also gas/config/tc-mmix.c for when
> these relocs are generated.

We've now got our text sections relaxed, the trampolines inserted,  
and are bouncing merrily across 140MB executables.

Thanks for your help!
Bill