AW: [RFH] Howto add new relocation types for avr-elf

["Haase Bjoern (PT-BEU/EMT) *" <Bjoern dot Haase at de dot bosch dot com>]

Thank's for your reply.

Would I be adding the new relocations at the end of the list in order to maintain the numbers of the present enums or would I be adding a new enum in the "avr-block" in reloc.c and the corresponding header? I assume I would add a new enum at the end.?

Bjoern. 

-----Ursprüngliche Nachricht-----
Von: Ramana Radhakrishnan [mailto:ramana.radhakrishnan@codito.com] 
Gesendet: Mittwoch, 5. Oktober 2005 15:05
An: Haase Bjoern (PT-BEU/EMT) *
Cc: binutils@sourceware.org
Betreff: Re: [RFH] Howto add new relocation types for avr-elf

Hi,

Replies inline below. 

> 
> I'd appreciate comments on how to introduce these new relocation indices
> 
> BFD_RELOC_AVR_HLO8_LDI_NEG
> BFD_RELOC_AVR_HHI8_LDI_NEG
> BFD_RELOC_AVR_HLO8_LDI
> BFD_RELOC_AVR_HHI8_LDI

I am really not aware of the AVR ABI / Relocation types and have not
spent time looking at your relaxations patch. However to add BFD
relocations this is what you need to do . 

You would have to make the changes in reloc.c , do a make headers after
configuring bfd with --enable-maintainer mode . If you are planning to
add new ELF relocation types , these would be R_AVR_* then the changes
need to go into include/elf/avr.h . 

Ofcourse Remember to provide a mapping between the BFD reloc types and
R_AVR in bfd/elf32-avr.c (a quick look at the sources reveals
avr_reloc_map to have this mapping. ) 


HTH 
cheers
Ramana

> .
> 
> Yours,
> 
> Bjoern
> 
> P.S.: The definitions causing the problems are:
> 
>   {"hlo8",   -BFD_RELOC_AVR_LO8_LDI,   -BFD_RELOC_AVR_LO8_LDI_NEG,   0},
>   {"hhi8",   -BFD_RELOC_AVR_HI8_LDI,   -BFD_RELOC_AVR_HI8_LDI_NEG,   0},
> 
-- 
Ramana Radhakrishnan                                            
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