RFA: Fix FRV switch table generation in PIC mode

[Nick Clifton]

Hi Richard,

>> It is not these relocations which are not working (they do).  It is the 
>> fact that the generated switch table code uses the .L8 label as the 
>> address of the switch table in RAM, but currently the .L8 label is in 
>> the .text section and the table itself is in the .rodata section....
> 
> Yes, I realize that.  But if you take away *all* of the 
> special handling, including the JUMP_TABLES_IN_TEXT_SECTION,
> does the program still work?
> 
> Basically, why the motivation for JUMP_TABLES_IN_TEXT_SECTION?
> It looks left over from a copy from mips16 code, where there
> was in fact a justification.

Ah - now that I could not say.  All I know is that defining 
JUMP_TABLES_IN_TEXT_SECTION in this way creates working binaries when 
compiling with -fPIC, whereas not applying the patch means broken 
binaries.  I do not know if having the jump tables in the .text section 
is a hold over from the mips16 code or if it is a necessary feature of 
the FRV port.

Cheers
   Nick