Re: arm/thumb: problems with function pointers

[Phil Blundell <pb at nexus dot co dot uk>]

On Thu, 2002-01-17 at 10:14, Adrian von Bidder wrote:
> the output of readelf for the .rel.text section has 'symbol values' for
> thumb symbols without the lsb set - isn't that the place where it should
> already be set? Q: who generates .rel.text section in object files?
> 
> What I mean: readelf says
> Relocation section '.rel.text' at offset ...:
>   Offset    Info  Type          Symbol's Value Symbol's Name
>   00000014  0071a R_ARM_GOT32         00000004 callee  

I don't really understand what you're getting at here.  At the time the
relocation is generated there isn't (in the general case) any way to
know whether the target is a Thumb function.  That information is only
available for certain at the time the relocation is being resolved,
during final link.  GOT entries for locally-defined symbols are a rather
special case.

It _is_ true that elf32_arm_final_link_relocate looks like a bit of a
mess, and there might be some opportunity for refactoring to make it
simpler.

p.