This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [CFT] re-organize var-tracking frame_base


On Fri, Aug 19, 2005 at 07:15:49PM -0400, David S. Miller wrote:
> When GDB sees a DW_CFA_GNU_window_save, it records that
> registers I0->I7 and L0->L7 are saved at:
> 
> 	CFA + (reg_size * reg_slot_nr)
> 
> It also records that the O0->O7 registers have become
> the I0->I7 registers.

Which is irrelevant in this case.  The important part is that the
window_save opcode does not affect the cfa.  I got around to building
a cross compiler and looking at the output; it seems plausible.  You
should give it a run through gdb to but sure though.


r~


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]