Esempio n. 1
0
static void
store_regs (struct type *regs_type, CORE_ADDR regs_base)
{
  struct gdbarch *gdbarch = target_gdbarch ();
  struct regcache *regcache = get_thread_regcache (inferior_ptid);
  int fieldno;

  for (fieldno = 0; fieldno < TYPE_NFIELDS (regs_type); fieldno++)
    {
      const char *reg_name = TYPE_FIELD_NAME (regs_type, fieldno);
      ULONGEST reg_bitpos = TYPE_FIELD_BITPOS (regs_type, fieldno);
      ULONGEST reg_bitsize = TYPE_FIELD_BITSIZE (regs_type, fieldno);
      ULONGEST reg_offset;
      struct type *reg_type = check_typedef (TYPE_FIELD_TYPE (regs_type,
							      fieldno));
      ULONGEST reg_size = TYPE_LENGTH (reg_type);
      int regnum;
      struct value *regval;
      CORE_ADDR inferior_addr;

      if (strcmp (reg_name, COMPILE_I_SIMPLE_REGISTER_DUMMY) == 0)
	continue;

      if ((reg_bitpos % 8) != 0 || reg_bitsize != 0)
	error (_("Invalid register \"%s\" position %s bits or size %s bits"),
	       reg_name, pulongest (reg_bitpos), pulongest (reg_bitsize));
      reg_offset = reg_bitpos / 8;

      if (TYPE_CODE (reg_type) != TYPE_CODE_INT
	  && TYPE_CODE (reg_type) != TYPE_CODE_PTR)
	error (_("Invalid register \"%s\" type code %d"), reg_name,
	       TYPE_CODE (reg_type));

      regnum = compile_register_name_demangle (gdbarch, reg_name);

      regval = value_from_register (reg_type, regnum, get_current_frame ());
      if (value_optimized_out (regval))
	error (_("Register \"%s\" is optimized out."), reg_name);
      if (!value_entirely_available (regval))
	error (_("Register \"%s\" is not available."), reg_name);

      inferior_addr = regs_base + reg_offset;
      if (0 != target_write_memory (inferior_addr, value_contents (regval),
				    reg_size))
	error (_("Cannot write register \"%s\" to inferior memory at %s."),
	       reg_name, paddress (gdbarch, inferior_addr));
    }
}
Esempio n. 2
0
void
c_value_print (struct value *val, struct ui_file *stream, 
	       const struct value_print_options *options)
{
  struct type *type, *real_type, *val_type;
  int full, top, using_enc;
  struct value_print_options opts = *options;

  opts.deref_ref = 1;

  /* If it is a pointer, indicate what it points to.

     Print type also if it is a reference.

     C++: if it is a member pointer, we will take care
     of that when we print it.  */

  /* Preserve the original type before stripping typedefs.  We prefer
     to pass down the original type when possible, but for local
     checks it is better to look past the typedefs.  */
  val_type = value_type (val);
  type = check_typedef (val_type);

  if (TYPE_CODE (type) == TYPE_CODE_PTR
      || TYPE_CODE (type) == TYPE_CODE_REF)
    {
      /* Hack:  remove (char *) for char strings.  Their
         type is indicated by the quoted string anyway.
         (Don't use c_textual_element_type here; quoted strings
         are always exactly (char *), (wchar_t *), or the like.  */
      if (TYPE_CODE (val_type) == TYPE_CODE_PTR
	  && TYPE_NAME (val_type) == NULL
	  && TYPE_NAME (TYPE_TARGET_TYPE (val_type)) != NULL
	  && (strcmp (TYPE_NAME (TYPE_TARGET_TYPE (val_type)),
		      "char") == 0
	      || textual_name (TYPE_NAME (TYPE_TARGET_TYPE (val_type)))))
	{
	  /* Print nothing.  */
	}
      else if (options->objectprint
	       && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
	{
	  int is_ref = TYPE_CODE (type) == TYPE_CODE_REF;

	  if (is_ref)
	    val = value_addr (val);

	  /* Pointer to class, check real type of object.  */
	  fprintf_filtered (stream, "(");

	  if (value_entirely_available (val))
 	    {
	      real_type = value_rtti_indirect_type (val, &full, &top,
						    &using_enc);
	      if (real_type)
		{
		  /* RTTI entry found.  */
		  type = real_type;

		  /* Need to adjust pointer value.  */
		  val = value_from_pointer (real_type,
					    value_as_address (val) - top);

		  if (is_ref)
		    {
		      val = value_ref (value_ind (val));
		      type = value_type (val);
		    }

		  /* Note: When we look up RTTI entries, we don't get
		     any information on const or volatile
		     attributes.  */
		}
	    }
          type_print (type, "", stream, -1);
	  fprintf_filtered (stream, ") ");
	  val_type = type;
	}
      else
	{
	  /* normal case */
	  fprintf_filtered (stream, "(");
	  type_print (value_type (val), "", stream, -1);
	  fprintf_filtered (stream, ") ");
	}
    }

  if (!value_initialized (val))
    fprintf_filtered (stream, " [uninitialized] ");

  if (options->objectprint && (TYPE_CODE (type) == TYPE_CODE_CLASS))
    {
      /* Attempt to determine real type of object.  */
      real_type = value_rtti_type (val, &full, &top, &using_enc);
      if (real_type)
	{
	  /* We have RTTI information, so use it.  */
	  val = value_full_object (val, real_type, 
				   full, top, using_enc);
	  fprintf_filtered (stream, "(%s%s) ",
			    TYPE_NAME (real_type),
			    full ? "" : _(" [incomplete object]"));
	  /* Print out object: enclosing type is same as real_type if
	     full.  */
	  val_print (value_enclosing_type (val),
		     value_contents_for_printing (val), 0,
		     value_address (val), stream, 0,
		     val, &opts, current_language);
	  return;
          /* Note: When we look up RTTI entries, we don't get any
             information on const or volatile attributes.  */
	}
      else if (type != check_typedef (value_enclosing_type (val)))
	{
	  /* No RTTI information, so let's do our best.  */
	  fprintf_filtered (stream, "(%s ?) ",
			    TYPE_NAME (value_enclosing_type (val)));
	  val_print (value_enclosing_type (val),
		     value_contents_for_printing (val), 0,
		     value_address (val), stream, 0,
		     val, &opts, current_language);
	  return;
	}
      /* Otherwise, we end up at the return outside this "if".  */
    }

  val_print (val_type, value_contents_for_printing (val),
	     value_embedded_offset (val),
	     value_address (val),
	     stream, 0,
	     val, &opts, current_language);
}