[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
Re: [PATCH] swapcontext vs libpthread
On Aug 25, 9:10am, manu%netbsd.org@localhost (Emmanuel Dreyfus) wrote:
-- Subject: Re: [PATCH] swapcontext vs libpthread
| 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.
Typically %r0 == 0 on RISC...
| 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
| ldil L%_C_LABEL(setcontext), %r1
| ldo R%_C_LABEL(setcontext)(%r1), %r1
| bv,n %r0(%r1)
I am not that familiar with PA-RISC assembly, but I guess the tests
will fail if this is incorrect :-)
| I will prepare a patch with all libc proposed changes in about
| 18 hours.
Main Index |
Thread Index |