C++ (Cpp) ocd_read_bdm_registers Examples

Example #1

File: ppc-bdm.c Project: DonCN/haiku

static void
bdm_ppc_fetch_registers (int regno)
{
  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
  int i;
  unsigned char *regs;
  int first_regno, last_regno;
  int first_bdm_regno, last_bdm_regno;
  int reglen;

  if (regno == -1)
    {
      first_regno = 0;
      last_regno = NUM_REGS - 1;

      first_bdm_regno = 0;
      last_bdm_regno = BDM_NUM_REGS - 1;
    }
  else
    {
      first_regno = regno;
      last_regno = regno;

      first_bdm_regno = bdm_regmap[regno];
      last_bdm_regno = bdm_regmap[regno];
    }

  if (first_bdm_regno == -1)
    {
      regcache_raw_supply (current_regcache, first_regno, NULL);
      return;			/* Unsupported register */
    }

  /* FIXME: jimb/2004-05-04: I'm not sure how to adapt this code to
     processors that lack floating point registers, and I don't have
     have the equipment to test it.  So we'll leave that case for the
     next person who encounters it.  */
  gdb_assert (ppc_floating_point_unit_p (current_gdbarch));

#if 1
  /* Can't ask for floating point regs on ppc 8xx, also need to
     avoid asking for the mq register. */
  if (first_regno == last_regno)	/* only want one reg */
    {
/*      printf("Asking for register %d\n", first_regno); */

      /* if asking for an invalid register */
      if ((first_regno == gdbarch_tdep (current_gdbarch)->ppc_mq_regnum)
          || (first_regno == gdbarch_tdep (current_gdbarch)->ppc_fpscr_regnum)
	  || ((first_regno >= tdep->ppc_fp0_regnum)
              && (first_regno < tdep->ppc_fp0_regnum + ppc_num_fprs)))
	{
/*          printf("invalid reg request!\n"); */
	  regcache_raw_supply (current_regcache, first_regno, NULL);
	  return;		/* Unsupported register */
	}
      else
	{
	  regs = ocd_read_bdm_registers (first_bdm_regno,
					 last_bdm_regno, &reglen);
	}
    }
  else
    internal_error (__FILE__, __LINE__,
                    "ppc_bdm_fetch_registers: "
                    "'all registers' case not implemented");

#endif
#if 0
  regs = ocd_read_bdm_registers (first_bdm_regno, last_bdm_regno, &reglen);
#endif

  for (i = first_regno; i <= last_regno; i++)
    {
      int bdm_regno, regoffset;

      bdm_regno = bdm_regmap[i];
      if (bdm_regno != -1)
	{
	  regoffset = bdm_regno - first_bdm_regno;

	  if (regoffset >= reglen / 4)
	    continue;

	  regcache_raw_supply (current_regcache, i, regs + 4 * regoffset);
	}
      else
	regcache_raw_supply (current_regcache, i, NULL);	/* Unsupported register */
    }
}

Example #2

File: ppc-bdm.c Project: 0mp/freebsd

static void
bdm_ppc_fetch_registers (int regno)
{
  int i;
  unsigned char *regs, *beginregs, *endregs, *almostregs;
  unsigned char midregs[32];
  unsigned char mqreg[1];
  int first_regno, last_regno;
  int first_bdm_regno, last_bdm_regno;
  int reglen, beginreglen, endreglen;

#if 1
  for (i = 0; i < (FPLAST_REGNUM - FP0_REGNUM + 1); i++)
    {
      midregs[i] = -1;
    }
  mqreg[0] = -1;
#endif

  if (regno == -1)
    {
      first_regno = 0;
      last_regno = NUM_REGS - 1;

      first_bdm_regno = 0;
      last_bdm_regno = BDM_NUM_REGS - 1;
    }
  else
    {
      first_regno = regno;
      last_regno = regno;

      first_bdm_regno = bdm_regmap[regno];
      last_bdm_regno = bdm_regmap[regno];
    }

  if (first_bdm_regno == -1)
    {
      supply_register (first_regno, NULL);
      return;			/* Unsupported register */
    }

#if 1
  /* Can't ask for floating point regs on ppc 8xx, also need to
     avoid asking for the mq register. */
  if (first_regno == last_regno)	/* only want one reg */
    {
/*      printf("Asking for register %d\n", first_regno); */

      /* if asking for an invalid register */
      if ((first_regno == gdbarch_tdep (current_gdbarch)->ppc_mq_regnum)
          || (first_regno == gdbarch_tdep (current_gdbarch)->ppc_fpscr_regnum)
	  || ((first_regno >= FP0_REGNUM) && (first_regno <= FPLAST_REGNUM)))
	{
/*          printf("invalid reg request!\n"); */
	  supply_register (first_regno, NULL);
	  return;		/* Unsupported register */
	}
      else
	{
	  regs = ocd_read_bdm_registers (first_bdm_regno,
					 last_bdm_regno, &reglen);
	}
    }
  else
    /* want all regs */
    {
/*      printf("Asking for registers %d to %d\n", first_regno, last_regno); */
      beginregs = ocd_read_bdm_registers (first_bdm_regno,
					  FP0_REGNUM - 1, &beginreglen);
      endregs = (strcat (midregs,
			 ocd_read_bdm_registers (FPLAST_REGNUM + 1,
					  last_bdm_regno - 1, &endreglen)));
      almostregs = (strcat (beginregs, endregs));
      regs = (strcat (almostregs, mqreg));
      reglen = beginreglen + 32 + endreglen + 1;
    }

#endif
#if 0
  regs = ocd_read_bdm_registers (first_bdm_regno, last_bdm_regno, &reglen);
#endif

  for (i = first_regno; i <= last_regno; i++)
    {
      int bdm_regno, regoffset;

      bdm_regno = bdm_regmap[i];
      if (bdm_regno != -1)
	{
	  regoffset = bdm_regno - first_bdm_regno;

	  if (regoffset >= reglen / 4)
	    continue;

	  supply_register (i, regs + 4 * regoffset);
	}
      else
	supply_register (i, NULL);	/* Unsupported register */
    }
}