Re: [PATCH] swapcontext vs libpthread

[Emmanuel Dreyfus <manu%netbsd.org@localhost>]

On Sat, Aug 25, 2012 at 03:10:51AM -0400, Christos Zoulas wrote:
[Call a C function from hppa assembly]
> Yes, that loads the address to %1, you'll need to call afterwards.

It seems to be done with "bv,n    %r0(%r1)". I understand bv
is branch-something, %r1 makes sense, but I am not sure about %r0.

I would have something like this:

#ifdef PIC
        ldw     HPPA_FRAME_EDP(%sp), %r19
        addil   LT%_C_LABEL(setcontext), %r19
        ldw     RT%_C_LABEL(setcontext)(%r1), %r1
#else
        ldil    L%_C_LABEL(setcontext), %r1
        ldo     R%_C_LABEL(setcontext)(%r1), %r1
#endif
        bv,n    %r0(%r1)

> Ok, sounds good. Portmasters, please chime in!

I will prepare a patch with all libc proposed changes in about 
18 hours.

-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost