CORE_ADDR safety);
static CORE_ADDR skip_prologue (CORE_ADDR, CORE_ADDR,
struct rs6000_framedata *);
-static void frame_get_saved_regs (struct frame_info * fi,
- struct rs6000_framedata * fdatap);
/* Is REGNO an AltiVec register? Return 1 if so, 0 otherwise. */
int
return pc;
}
-/* If saved registers of frame FI are not known yet, read and cache them.
- &FDATAP contains rs6000_framedata; TDATAP can be NULL,
- in which case the framedata are read. */
-
-static void
-frame_get_saved_regs (struct frame_info *fi, struct rs6000_framedata *fdatap)
-{
- CORE_ADDR frame_addr;
- struct rs6000_framedata work_fdata;
- struct gdbarch_tdep * tdep = gdbarch_tdep (current_gdbarch);
- int wordsize = tdep->wordsize;
-
- if (deprecated_get_frame_saved_regs (fi))
- return;
-
- if (fdatap == NULL)
- {
- fdatap = &work_fdata;
- (void) skip_prologue (get_frame_func (fi), get_frame_pc (fi), fdatap);
- }
-
- frame_saved_regs_zalloc (fi);
-
- /* If there were any saved registers, figure out parent's stack
- pointer. */
- /* The following is true only if the frame doesn't have a call to
- alloca(), FIXME. */
-
- if (fdatap->saved_fpr == 0
- && fdatap->saved_gpr == 0
- && fdatap->saved_vr == 0
- && fdatap->saved_ev == 0
- && fdatap->lr_offset == 0
- && fdatap->cr_offset == 0
- && fdatap->vr_offset == 0
- && fdatap->ev_offset == 0)
- frame_addr = 0;
- else
- /* NOTE: cagney/2002-04-14: The ->frame points to the inner-most
- address of the current frame. Things might be easier if the
- ->frame pointed to the outer-most address of the frame. In the
- mean time, the address of the prev frame is used as the base
- address of this frame. */
- frame_addr = DEPRECATED_FRAME_CHAIN (fi);
-
- /* if != -1, fdatap->saved_fpr is the smallest number of saved_fpr.
- All fpr's from saved_fpr to fp31 are saved. */
-
- if (fdatap->saved_fpr >= 0)
- {
- int i;
- CORE_ADDR fpr_addr = frame_addr + fdatap->fpr_offset;
- for (i = fdatap->saved_fpr; i < 32; i++)
- {
- deprecated_get_frame_saved_regs (fi)[FP0_REGNUM + i] = fpr_addr;
- fpr_addr += 8;
- }
- }
-
- /* if != -1, fdatap->saved_gpr is the smallest number of saved_gpr.
- All gpr's from saved_gpr to gpr31 are saved. */
-
- if (fdatap->saved_gpr >= 0)
- {
- int i;
- CORE_ADDR gpr_addr = frame_addr + fdatap->gpr_offset;
- for (i = fdatap->saved_gpr; i < 32; i++)
- {
- deprecated_get_frame_saved_regs (fi)[tdep->ppc_gp0_regnum + i] = gpr_addr;
- gpr_addr += wordsize;
- }
- }
-
- /* if != -1, fdatap->saved_vr is the smallest number of saved_vr.
- All vr's from saved_vr to vr31 are saved. */
- if (tdep->ppc_vr0_regnum != -1 && tdep->ppc_vrsave_regnum != -1)
- {
- if (fdatap->saved_vr >= 0)
- {
- int i;
- CORE_ADDR vr_addr = frame_addr + fdatap->vr_offset;
- for (i = fdatap->saved_vr; i < 32; i++)
- {
- deprecated_get_frame_saved_regs (fi)[tdep->ppc_vr0_regnum + i] = vr_addr;
- vr_addr += DEPRECATED_REGISTER_RAW_SIZE (tdep->ppc_vr0_regnum);
- }
- }
- }
-
- /* if != -1, fdatap->saved_ev is the smallest number of saved_ev.
- All vr's from saved_ev to ev31 are saved. ????? */
- if (tdep->ppc_ev0_regnum != -1 && tdep->ppc_ev31_regnum != -1)
- {
- if (fdatap->saved_ev >= 0)
- {
- int i;
- CORE_ADDR ev_addr = frame_addr + fdatap->ev_offset;
- for (i = fdatap->saved_ev; i < 32; i++)
- {
- deprecated_get_frame_saved_regs (fi)[tdep->ppc_ev0_regnum + i] = ev_addr;
- deprecated_get_frame_saved_regs (fi)[tdep->ppc_gp0_regnum + i] = ev_addr + 4;
- ev_addr += DEPRECATED_REGISTER_RAW_SIZE (tdep->ppc_ev0_regnum);
- }
- }
- }
-
- /* If != 0, fdatap->cr_offset is the offset from the frame that holds
- the CR. */
- if (fdatap->cr_offset != 0)
- deprecated_get_frame_saved_regs (fi)[tdep->ppc_cr_regnum] = frame_addr + fdatap->cr_offset;
-
- /* If != 0, fdatap->lr_offset is the offset from the frame that holds
- the LR. */
- if (fdatap->lr_offset != 0)
- deprecated_get_frame_saved_regs (fi)[tdep->ppc_lr_regnum] = frame_addr + fdatap->lr_offset;
-
- /* If != 0, fdatap->vrsave_offset is the offset from the frame that holds
- the VRSAVE. */
- if (fdatap->vrsave_offset != 0)
- deprecated_get_frame_saved_regs (fi)[tdep->ppc_vrsave_regnum] = frame_addr + fdatap->vrsave_offset;
-}
-
/* Return the size of register REG when words are WORDSIZE bytes long. If REG
isn't available with that word size, return 0. */