PIC question

[Martin Husemann <martin%duskware.de@localhost>]

I'm new to vax asm and have not been fully assimilated, it seems - I have
some asm code that is not PIC and so when compiled into a .so dies due
to .text relocs. (Linked static it all works)

It does kindof Duff's device in asm - there is an unrolled loop starting
at .Loop and a jump with offset into the loop is calculated in %r5, then the
code does:

        jmp     .Loop(%r5)
.Loop:  ...

This causes a 32bit relocation for the .Loop address inside the
indirect jump with offset instructions.

What is the pic way to do this? Some trick? There doesn't seem to be a br +
register offset instruction.

Or along the lines of:

        addl2   %pc,%r5
        add     .Loop - ., %r5
        jmp     (%r5)
.Loop:  ...

(but the .Loop-. is not accepted by gas)

?


Thanks,

Martin