From: Paul H. Hargrove (PHHargrove_at_lbl_dot_gov)
Date: Tue Sep 02 2008 - 13:02:03 PDT
Robby,
I believe the correct incantation is
regs->u_regs[UREG_FP]
This is based on examination of linux-2.6.22/include/asm-sparc/ptrace.h,
and verification against code in linux-2.6.22/arch/sparc/kernel/signal.c
which needs to get the stack/frame pointer.
However, after a quick look I do believe that get_stack_pointer() in
cr_arch.h is no longer used. So, you could probably leave it out entirely.
-Paul
Vincentius Robby wrote:
> Hello,
>
> I have a small particular question about sparc stack pointers.
> In cr_module/arch/*/cr_arch.h, for different architecture there seems
> to be different methods of obtaining the stack pointers, such as
> regs->sp (i386), regs->gpr[1] (ppc), and regs->ARM_sp (arm). Is there
> a different method for sparc to obtain the stack pointer?
> regs->sp/regs->o6 does not seem to solve it.
>
> Thank you.
>
--
Paul H. Hargrove PHHargrove_at_lbl_dot_gov
Future Technologies Group
HPC Research Department Tel: +1-510-495-2352
Lawrence Berkeley National Laboratory Fax: +1-510-486-6900