C++ TYPE_CODE函数代码示例

void
go_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
	      CORE_ADDR address, struct ui_file *stream, int recurse,
	      const struct value *val,
	      const struct value_print_options *options)
{
  CHECK_TYPEDEF (type);

  switch (TYPE_CODE (type))
    {
      case TYPE_CODE_STRUCT:
	{
	  enum go_type go_type = go_classify_struct_type (type);

	  switch (go_type)
	    {
	    case GO_TYPE_STRING:
	      if (! options->raw)
		{
		  print_go_string (type, valaddr, embedded_offset, address,
				   stream, recurse, val, options);
		  return;
		}
	      break;
	    default:
	      break;
	    }
	}
	/* Fall through.  */

      default:
	c_val_print (type, valaddr, embedded_offset, address, stream,
		     recurse, val, options);
	break;
    }
}

int
c_textual_element_type (struct type *type, char format)
{
  struct type *true_type, *iter_type;

  if (format != 0 && format != 's')
    return 0;

  /* We also rely on this for its side effect of setting up all the
     typedef pointers.  */
  true_type = check_typedef (type);

  /* TYPE_CODE_CHAR is always textual.  */
  if (TYPE_CODE (true_type) == TYPE_CODE_CHAR)
    return 1;

  /* Any other character-like types must be integral.  */
  if (TYPE_CODE (true_type) != TYPE_CODE_INT)
    return 0;

  /* We peel typedefs one by one, looking for a match.  */
  iter_type = type;
  while (iter_type)
    {
      /* Check the name of the type.  */
      if (TYPE_NAME (iter_type) && textual_name (TYPE_NAME (iter_type)))
	return 1;

      if (TYPE_CODE (iter_type) != TYPE_CODE_TYPEDEF)
	break;

      /* Peel a single typedef.  If the typedef doesn't have a target
	 type, we use check_typedef and hope the result is ok -- it
	 might be for C++, where wchar_t is a built-in type.  */
      if (TYPE_TARGET_TYPE (iter_type))
	iter_type = TYPE_TARGET_TYPE (iter_type);
      else
	iter_type = check_typedef (iter_type);
    }

  if (format == 's')
    {
      /* Print this as a string if we can manage it.  For now, no wide
	 character support.  */
      if (TYPE_CODE (true_type) == TYPE_CODE_INT
	  && TYPE_LENGTH (true_type) == 1)
	return 1;
    }
  else
    {
      /* If a one-byte TYPE_CODE_INT is missing the not-a-character
	 flag, then we treat it as text; otherwise, we assume it's
	 being used as data.  */
      if (TYPE_CODE (true_type) == TYPE_CODE_INT
	  && TYPE_LENGTH (true_type) == 1
	  && !TYPE_NOTTEXT (true_type))
	return 1;
    }

  return 0;
}

/* Return a virtual function as a value.
   ARG1 is the object which provides the virtual function
   table pointer.  *ARG1P is side-effected in calling this function.
   F is the list of member functions which contains the desired virtual
   function.
   J is an index into F which provides the desired virtual function.

   TYPE is the type in which F is located.  */
static struct value *
gnuv2_virtual_fn_field (struct value **arg1p, struct fn_field * f, int j,
			struct type * type, int offset)
{
  struct value *arg1 = *arg1p;
  struct type *type1 = check_typedef (value_type (arg1));


  struct type *entry_type;
  /* First, get the virtual function table pointer.  That comes
     with a strange type, so cast it to type `pointer to long' (which
     should serve just fine as a function type).  Then, index into
     the table, and convert final value to appropriate function type.  */
  struct value *entry;
  struct value *vfn;
  struct value *vtbl;
  struct value *vi = value_from_longest (builtin_type_int,
				     (LONGEST) TYPE_FN_FIELD_VOFFSET (f, j));
  struct type *fcontext = TYPE_FN_FIELD_FCONTEXT (f, j);
  struct type *context;
  if (fcontext == NULL)
    /* We don't have an fcontext (e.g. the program was compiled with
       g++ version 1).  Try to get the vtbl from the TYPE_VPTR_BASETYPE.
       This won't work right for multiple inheritance, but at least we
       should do as well as GDB 3.x did.  */
    fcontext = TYPE_VPTR_BASETYPE (type);
  context = lookup_pointer_type (fcontext);
  /* Now context is a pointer to the basetype containing the vtbl.  */
  if (TYPE_TARGET_TYPE (context) != type1)
    {
      struct value *tmp = value_cast (context, value_addr (arg1));
      arg1 = value_ind (tmp);
      type1 = check_typedef (value_type (arg1));
    }

  context = type1;
  /* Now context is the basetype containing the vtbl.  */

  /* This type may have been defined before its virtual function table
     was.  If so, fill in the virtual function table entry for the
     type now.  */
  if (TYPE_VPTR_FIELDNO (context) < 0)
    fill_in_vptr_fieldno (context);

  /* The virtual function table is now an array of structures
     which have the form { int16 offset, delta; void *pfn; }.  */
  vtbl = value_primitive_field (arg1, 0, TYPE_VPTR_FIELDNO (context),
				TYPE_VPTR_BASETYPE (context));

  /* With older versions of g++, the vtbl field pointed to an array
     of structures.  Nowadays it points directly to the structure. */
  if (TYPE_CODE (value_type (vtbl)) == TYPE_CODE_PTR
      && TYPE_CODE (TYPE_TARGET_TYPE (value_type (vtbl))) == TYPE_CODE_ARRAY)
    {
      /* Handle the case where the vtbl field points to an
         array of structures. */
      vtbl = value_ind (vtbl);

      /* Index into the virtual function table.  This is hard-coded because
         looking up a field is not cheap, and it may be important to save
         time, e.g. if the user has set a conditional breakpoint calling
         a virtual function.  */
      entry = value_subscript (vtbl, vi);
    }
  else
    {
      /* Handle the case where the vtbl field points directly to a structure. */
      vtbl = value_add (vtbl, vi);
      entry = value_ind (vtbl);
    }

  entry_type = check_typedef (value_type (entry));

  if (TYPE_CODE (entry_type) == TYPE_CODE_STRUCT)
    {
      /* Move the `this' pointer according to the virtual function table. */
      set_value_offset (arg1, value_offset (arg1) + value_as_long (value_field (entry, 0)));

      if (!value_lazy (arg1))
	{
	  set_value_lazy (arg1, 1);
	  value_fetch_lazy (arg1);
	}

      vfn = value_field (entry, 2);
    }
  else if (TYPE_CODE (entry_type) == TYPE_CODE_PTR)
    vfn = entry;
  else
    error (_("I'm confused:  virtual function table has bad type"));
  /* Reinstantiate the function pointer with the correct type.  */
  deprecated_set_value_type (vfn, lookup_pointer_type (TYPE_FN_FIELD_TYPE (f, j)));
//.........这里部分代码省略.........

void
m2_print_type (struct type *type, char *varstring, struct ui_file *stream,
	       int show, int level)
{
  enum type_code code;
  int demangled_args;

  CHECK_TYPEDEF (type);
  code = TYPE_CODE (type);

  QUIT;

  wrap_here ("    ");
  if (type == NULL)
    {
      fputs_filtered (_("<type unknown>"), stream);
      return;
    }

  switch (TYPE_CODE (type))
    {
    case TYPE_CODE_SET:
      m2_short_set(type, stream, show, level);
      break;

    case TYPE_CODE_STRUCT:
      if (m2_long_set (type, stream, show, level))
	break;
      m2_record_fields (type, stream, show, level);
      break;

    case TYPE_CODE_TYPEDEF:
      m2_typedef (type, stream, show, level);
      break;

    case TYPE_CODE_ARRAY:
      m2_array (type, stream, show, level);
      break;

    case TYPE_CODE_PTR:
      m2_pointer (type, stream, show, level);
      break;

    case TYPE_CODE_REF:
      m2_ref (type, stream, show, level);
      break;

    case TYPE_CODE_MEMBER:
      m2_unknown (_("member"), type, stream, show, level);
      break;

    case TYPE_CODE_METHOD:
      m2_unknown (_("method"), type, stream, show, level);
      break;

    case TYPE_CODE_FUNC:
      m2_procedure (type, stream, show, level);
      break;

    case TYPE_CODE_UNION:
      m2_union (type, stream);
      break;

    case TYPE_CODE_ENUM:
      m2_enum (type, stream, show, level);
      break;

    case TYPE_CODE_VOID:
      break;

    case TYPE_CODE_UNDEF:
      /* i18n: Do not translate the "struct" part! */
      m2_unknown (_("undef"), type, stream, show, level);
      break;

    case TYPE_CODE_ERROR:
      m2_unknown (_("error"), type, stream, show, level);
      break;

    case TYPE_CODE_RANGE:
      m2_range (type, stream, show, level);
      break;

    case TYPE_CODE_TEMPLATE:
      break;

    default:
      m2_type_name (type, stream);
      break;
    }
}

void
c_type_print_base (struct type *type, struct ui_file *stream,
		   int show, int level)
{
  int i;
  int len, real_len;
  enum
    {
      s_none, s_public, s_private, s_protected
    }
  section_type;
  int need_access_label = 0;
  int j, len2;

  QUIT;

  wrap_here ("    ");
  if (type == NULL)
    {
      fputs_filtered (_("<type unknown>"), stream);
      return;
    }

  /* When SHOW is zero or less, and there is a valid type name, then
     always just print the type name directly from the type.  */
  /* If we have "typedef struct foo {. . .} bar;" do we want to print
     it as "struct foo" or as "bar"?  Pick the latter, because C++
     folk tend to expect things like "class5 *foo" rather than "struct
     class5 *foo".  */

  if (show <= 0
      && TYPE_NAME (type) != NULL)
    {
      c_type_print_modifier (type, stream, 0, 1);
      fputs_filtered (TYPE_NAME (type), stream);
      return;
    }

  CHECK_TYPEDEF (type);

  switch (TYPE_CODE (type))
    {
    case TYPE_CODE_TYPEDEF:
      /* If we get here, the typedef doesn't have a name, and we
	 couldn't resolve TYPE_TARGET_TYPE.  Not much we can do.  */
      gdb_assert (TYPE_NAME (type) == NULL);
      gdb_assert (TYPE_TARGET_TYPE (type) == NULL);
      fprintf_filtered (stream, _("<unnamed typedef>"));
      break;

    case TYPE_CODE_ARRAY:
    case TYPE_CODE_PTR:
    case TYPE_CODE_MEMBERPTR:
    case TYPE_CODE_REF:
    case TYPE_CODE_FUNC:
    case TYPE_CODE_METHOD:
    case TYPE_CODE_METHODPTR:
      c_type_print_base (TYPE_TARGET_TYPE (type),
			 stream, show, level);
      break;

    case TYPE_CODE_STRUCT:
    case TYPE_CODE_UNION:
      c_type_print_modifier (type, stream, 0, 1);
      if (TYPE_CODE (type) == TYPE_CODE_UNION)
	fprintf_filtered (stream, "union ");
      else if (TYPE_DECLARED_CLASS (type))
	fprintf_filtered (stream, "class ");
      else
	fprintf_filtered (stream, "struct ");

      /* Print the tag if it exists.  The HP aCC compiler emits a
         spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed
         enum}" tag for unnamed struct/union/enum's, which we don't
         want to print.  */
      if (TYPE_TAG_NAME (type) != NULL
	  && strncmp (TYPE_TAG_NAME (type), "{unnamed", 8))
	{
	  fputs_filtered (TYPE_TAG_NAME (type), stream);
	  if (show > 0)
	    fputs_filtered (" ", stream);
	}
      wrap_here ("    ");
      if (show < 0)
	{
	  /* If we just printed a tag name, no need to print anything
	     else.  */
	  if (TYPE_TAG_NAME (type) == NULL)
	    fprintf_filtered (stream, "{...}");
	}
      else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
	{
	  struct type *basetype;
	  int vptr_fieldno;

	  cp_type_print_derivation_info (stream, type);

	  fprintf_filtered (stream, "{\n");
	  if (TYPE_NFIELDS (type) == 0 && TYPE_NFN_FIELDS (type) == 0
	      && TYPE_TYPEDEF_FIELD_COUNT (type) == 0)
//.........这里部分代码省略.........

static void
c_type_print_varspec_prefix (struct type *type,
			     struct ui_file *stream,
			     int show, int passed_a_ptr,
			     int need_post_space)
{
  const char *name;

  if (type == 0)
    return;

  if (TYPE_NAME (type) && show <= 0)
    return;

  QUIT;

  switch (TYPE_CODE (type))
    {
    case TYPE_CODE_PTR:
      c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
				   stream, show, 1, 1);
      fprintf_filtered (stream, "*");
      c_type_print_modifier (type, stream, 1, need_post_space);
      break;

    case TYPE_CODE_MEMBERPTR:
      c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
				   stream, show, 0, 0);
      name = type_name_no_tag (TYPE_DOMAIN_TYPE (type));
      if (name)
	fputs_filtered (name, stream);
      else
	c_type_print_base (TYPE_DOMAIN_TYPE (type),
			   stream, -1, passed_a_ptr);
      fprintf_filtered (stream, "::*");
      break;

    case TYPE_CODE_METHODPTR:
      c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
				   stream, show, 0, 0);
      fprintf_filtered (stream, "(");
      name = type_name_no_tag (TYPE_DOMAIN_TYPE (type));
      if (name)
	fputs_filtered (name, stream);
      else
	c_type_print_base (TYPE_DOMAIN_TYPE (type),
			   stream, -1, passed_a_ptr);
      fprintf_filtered (stream, "::*");
      break;

    case TYPE_CODE_REF:
      c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
				   stream, show, 1, 0);
      fprintf_filtered (stream, "&");
      c_type_print_modifier (type, stream, 1, need_post_space);
      break;

    case TYPE_CODE_METHOD:
    case TYPE_CODE_FUNC:
      c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
				   stream, show, 0, 0);
      if (passed_a_ptr)
	fprintf_filtered (stream, "(");
      break;

    case TYPE_CODE_ARRAY:
      c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
				   stream, show, 0, 0);
      if (passed_a_ptr)
	fprintf_filtered (stream, "(");
      break;

    case TYPE_CODE_TYPEDEF:
      c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
				   stream, show, passed_a_ptr, 0);
      break;

    case TYPE_CODE_UNDEF:
    case TYPE_CODE_STRUCT:
    case TYPE_CODE_UNION:
    case TYPE_CODE_ENUM:
    case TYPE_CODE_INT:
    case TYPE_CODE_FLT:
    case TYPE_CODE_VOID:
    case TYPE_CODE_ERROR:
    case TYPE_CODE_CHAR:
    case TYPE_CODE_BOOL:
    case TYPE_CODE_SET:
    case TYPE_CODE_RANGE:
    case TYPE_CODE_STRING:
    case TYPE_CODE_COMPLEX:
    case TYPE_CODE_NAMESPACE:
    case TYPE_CODE_DECFLOAT:
      /* These types need no prefix.  They are listed here so that
         gcc -Wall will reveal any types that haven't been handled.  */
      break;
    default:
      error (_("type not handled in c_type_print_varspec_prefix()"));
      break;
    }
//.........这里部分代码省略.........

static struct type *
java_link_class_type (struct gdbarch *gdbarch,
		      struct type *type, struct value *clas)
{
  struct value *temp;
  const char *unqualified_name;
  const char *name = TYPE_TAG_NAME (type);
  int ninterfaces, nfields, nmethods;
  int type_is_object = 0;
  struct fn_field *fn_fields;
  struct fn_fieldlist *fn_fieldlists;
  struct value *fields;
  struct value *methods;
  struct value *method = NULL;
  struct value *field = NULL;
  int i, j;
  struct objfile *objfile = get_dynamics_objfile (gdbarch);
  struct type *tsuper;

  gdb_assert (name != NULL);
  unqualified_name = strrchr (name, '.');
  if (unqualified_name == NULL)
    unqualified_name = name;

  temp = clas;
  temp = value_struct_elt (&temp, NULL, "superclass", NULL, "structure");
  if (strcmp (name, "java.lang.Object") == 0)
    {
      tsuper = get_java_object_type ();
      if (tsuper && TYPE_CODE (tsuper) == TYPE_CODE_PTR)
	tsuper = TYPE_TARGET_TYPE (tsuper);
      type_is_object = 1;
    }
  else
    tsuper = type_from_class (gdbarch, temp);

#if 1
  ninterfaces = 0;
#else
  temp = clas;
  ninterfaces = value_as_long (value_struct_elt (&temp, NULL, "interface_len",
						 NULL, "structure"));
#endif
  TYPE_N_BASECLASSES (type) = (tsuper == NULL ? 0 : 1) + ninterfaces;
  temp = clas;
  nfields = value_as_long (value_struct_elt (&temp, NULL, "field_count",
					     NULL, "structure"));
  nfields += TYPE_N_BASECLASSES (type);
  nfields++;			/* Add one for dummy "class" field.  */
  TYPE_NFIELDS (type) = nfields;
  TYPE_FIELDS (type) = (struct field *)
    TYPE_ALLOC (type, sizeof (struct field) * nfields);

  memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nfields);

  TYPE_FIELD_PRIVATE_BITS (type) =
    (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
  B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields);

  TYPE_FIELD_PROTECTED_BITS (type) =
    (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
  B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields);

  TYPE_FIELD_IGNORE_BITS (type) =
    (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
  B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields);

  TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *)
    TYPE_ALLOC (type, B_BYTES (TYPE_N_BASECLASSES (type)));
  B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), TYPE_N_BASECLASSES (type));

  if (tsuper != NULL)
    {
      TYPE_BASECLASS (type, 0) = tsuper;
      if (type_is_object)
	SET_TYPE_FIELD_PRIVATE (type, 0);
    }

  i = strlen (name);
  if (i > 2 && name[i - 1] == ']' && tsuper != NULL)
    {
      /* FIXME */
      TYPE_LENGTH (type) = TYPE_LENGTH (tsuper) + 4;   /* size with "length" */
    }
  else
    {
      temp = clas;
      temp = value_struct_elt (&temp, NULL, "size_in_bytes",
			       NULL, "structure");
      TYPE_LENGTH (type) = value_as_long (temp);
    }

  fields = NULL;
  nfields--;			/* First set up dummy "class" field.  */
  SET_FIELD_PHYSADDR (TYPE_FIELD (type, nfields), value_address (clas));
  TYPE_FIELD_NAME (type, nfields) = "class";
  TYPE_FIELD_TYPE (type, nfields) = value_type (clas);
  SET_TYPE_FIELD_PRIVATE (type, nfields);

  for (i = TYPE_N_BASECLASSES (type); i < nfields; i++)
//.........这里部分代码省略.........

static CORE_ADDR
rs6000_lynx178_push_dummy_call (struct gdbarch *gdbarch,
				struct value *function,
				struct regcache *regcache, CORE_ADDR bp_addr,
				int nargs, struct value **args, CORE_ADDR sp,
				int struct_return, CORE_ADDR struct_addr)
{
  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
  int ii;
  int len = 0;
  int argno;			/* current argument number */
  int argbytes;			/* current argument byte */
  gdb_byte tmp_buffer[50];
  int f_argno = 0;		/* current floating point argno */
  int wordsize = gdbarch_tdep (gdbarch)->wordsize;
  CORE_ADDR func_addr = find_function_addr (function, NULL);

  struct value *arg = 0;
  struct type *type;

  ULONGEST saved_sp;

  /* The calling convention this function implements assumes the
     processor has floating-point registers.  We shouldn't be using it
     on PPC variants that lack them.  */
  gdb_assert (ppc_floating_point_unit_p (gdbarch));

  /* The first eight words of ther arguments are passed in registers.
     Copy them appropriately.  */
  ii = 0;

  /* If the function is returning a `struct', then the first word
     (which will be passed in r3) is used for struct return address.
     In that case we should advance one word and start from r4
     register to copy parameters.  */
  if (struct_return)
    {
      regcache_raw_write_unsigned (regcache, tdep->ppc_gp0_regnum + 3,
				   struct_addr);
      ii++;
    }

  /* Effectively indirect call... gcc does...

     return_val example( float, int);

     eabi:
     float in fp0, int in r3
     offset of stack on overflow 8/16
     for varargs, must go by type.
     power open:
     float in r3&r4, int in r5
     offset of stack on overflow different
     both:
     return in r3 or f0.  If no float, must study how gcc emulates floats;
     pay attention to arg promotion.
     User may have to cast\args to handle promotion correctly
     since gdb won't know if prototype supplied or not.  */

  for (argno = 0, argbytes = 0; argno < nargs && ii < 8; ++ii)
    {
      int reg_size = register_size (gdbarch, ii + 3);

      arg = args[argno];
      type = check_typedef (value_type (arg));
      len = TYPE_LENGTH (type);

      if (TYPE_CODE (type) == TYPE_CODE_FLT)
	{

	  /* Floating point arguments are passed in fpr's, as well as gpr's.
	     There are 13 fpr's reserved for passing parameters.  At this point
	     there is no way we would run out of them.

	     Always store the floating point value using the register's
	     floating-point format.  */
	  const int fp_regnum = tdep->ppc_fp0_regnum + 1 + f_argno;
	  gdb_byte reg_val[MAX_REGISTER_SIZE];
	  struct type *reg_type = register_type (gdbarch, fp_regnum);

	  gdb_assert (len <= 8);

	  convert_typed_floating (value_contents (arg), type,
				  reg_val, reg_type);
	  regcache_cooked_write (regcache, fp_regnum, reg_val);
	  ++f_argno;
	}

      if (len > reg_size)
	{

	  /* Argument takes more than one register.  */
	  while (argbytes < len)
	    {
	      gdb_byte word[MAX_REGISTER_SIZE];
	      memset (word, 0, reg_size);
	      memcpy (word,
		      ((char *) value_contents (arg)) + argbytes,
		      (len - argbytes) > reg_size
//.........这里部分代码省略.........

void
c_type_print_varspec_suffix (struct type *type, struct ui_file *stream,
			     int show, int passed_a_ptr, int demangled_args)
{
  if (type == 0)
    return;

  if (TYPE_NAME (type) && show <= 0)
    return;

  QUIT;

  switch (TYPE_CODE (type))
    {
    case TYPE_CODE_ARRAY:
      if (passed_a_ptr)
	fprintf_filtered (stream, ")");

      fprintf_filtered (stream, "[");
      if (TYPE_LENGTH (type) >= 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0
	&& TYPE_ARRAY_UPPER_BOUND_TYPE (type) != BOUND_CANNOT_BE_DETERMINED)
	fprintf_filtered (stream, "%d",
			  (TYPE_LENGTH (type)
			   / TYPE_LENGTH (TYPE_TARGET_TYPE (type))));
      fprintf_filtered (stream, "]");

      c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
				   0, 0);
      break;

    case TYPE_CODE_MEMBER:
      if (passed_a_ptr)
	fprintf_filtered (stream, ")");
      c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
				   0, 0);
      break;

    case TYPE_CODE_METHOD:
      if (passed_a_ptr)
	fprintf_filtered (stream, ")");
      c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
				   0, 0);
      if (passed_a_ptr)
	{
	  c_type_print_args (type, stream);
	}
      break;

    case TYPE_CODE_PTR:
    case TYPE_CODE_REF:
      c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
				   1, 0);
      break;

    case TYPE_CODE_FUNC:
      if (passed_a_ptr)
	fprintf_filtered (stream, ")");
      if (!demangled_args)
	{
	  int i, len = TYPE_NFIELDS (type);
	  fprintf_filtered (stream, "(");
	  if (len == 0
              && (TYPE_PROTOTYPED (type)
		  /* APPLE LOCAL begin Objective-C++ */
                  || current_language->la_language == language_cplus
		  || current_language->la_language == language_objcplus))
	    /* APPLE LOCAL end Objective-C++ */
	    {
	      fprintf_filtered (stream, "void");
	    }
	  else
	    for (i = 0; i < len; i++)
	      {
		if (i > 0)
		  {
		    fputs_filtered (", ", stream);
		    wrap_here ("    ");
		  }
		c_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0);
	      }
	  fprintf_filtered (stream, ")");
	}
      c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
				   passed_a_ptr, 0);
      break;

    case TYPE_CODE_TYPEDEF:
      c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
				   passed_a_ptr, 0);
      break;

    case TYPE_CODE_UNDEF:
    case TYPE_CODE_STRUCT:
    case TYPE_CODE_UNION:
    case TYPE_CODE_ENUM:
    case TYPE_CODE_INT:
    case TYPE_CODE_FLT:
    case TYPE_CODE_VOID:
    case TYPE_CODE_ERROR:
    case TYPE_CODE_CHAR:
//.........这里部分代码省略.........

int
java_val_print (struct type *type, const gdb_byte *valaddr,
		int embedded_offset, CORE_ADDR address,
		struct ui_file *stream, int recurse,
		const struct value_print_options *options)
{
  struct gdbarch *gdbarch = get_type_arch (type);
  unsigned int i = 0;	/* Number of characters printed */
  struct type *target_type;
  CORE_ADDR addr;

  CHECK_TYPEDEF (type);
  switch (TYPE_CODE (type))
    {
    case TYPE_CODE_PTR:
      if (options->format && options->format != 's')
	{
	  print_scalar_formatted (valaddr, type, options, 0, stream);
	  break;
	}
#if 0
      if (options->vtblprint && cp_is_vtbl_ptr_type (type))
	{
	  /* Print the unmangled name if desired.  */
	  /* Print vtable entry - we only get here if we ARE using
	     -fvtable_thunks.  (Otherwise, look under TYPE_CODE_STRUCT.) */
	  /* Extract an address, assume that it is unsigned.  */
	  print_address_demangle (gdbarch,
				  extract_unsigned_integer (valaddr, TYPE_LENGTH (type)),
				  stream, demangle);
	  break;
	}
#endif
      addr = unpack_pointer (type, valaddr);
      if (addr == 0)
	{
	  fputs_filtered ("null", stream);
	  return i;
	}
      target_type = check_typedef (TYPE_TARGET_TYPE (type));

      if (TYPE_CODE (target_type) == TYPE_CODE_FUNC)
	{
	  /* Try to print what function it points to.  */
	  print_address_demangle (gdbarch, addr, stream, demangle);
	  /* Return value is irrelevant except for string pointers.  */
	  return (0);
	}

      if (options->addressprint && options->format != 's')
	{
	  fputs_filtered ("@", stream);
	  print_longest (stream, 'x', 0, (ULONGEST) addr);
	}

      return i;

    case TYPE_CODE_CHAR:
    case TYPE_CODE_INT:
      /* Can't just call c_val_print because that prints bytes as C
	 chars.  */
      if (options->format || options->output_format)
	{
	  struct value_print_options opts = *options;
	  opts.format = (options->format ? options->format
			 : options->output_format);
	  print_scalar_formatted (valaddr, type, &opts, 0, stream);
	}
      else if (TYPE_CODE (type) == TYPE_CODE_CHAR
	       || (TYPE_CODE (type) == TYPE_CODE_INT
		   && TYPE_LENGTH (type) == 2
		   && strcmp (TYPE_NAME (type), "char") == 0))
	LA_PRINT_CHAR ((int) unpack_long (type, valaddr), type, stream);
      else
	val_print_type_code_int (type, valaddr, stream);
      break;

    case TYPE_CODE_STRUCT:
      java_print_value_fields (type, valaddr, address, stream, recurse,
			       options);
      break;

    default:
      return c_val_print (type, valaddr, embedded_offset, address, stream,
			  recurse, options);
    }

  return 0;
}

int
java_value_print (struct value *val, struct ui_file *stream, 
		  const struct value_print_options *options)
{
  struct gdbarch *gdbarch = get_type_arch (value_type (val));
  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
  struct type *type;
  CORE_ADDR address;
  int i;
  char *name;
  struct value_print_options opts;

  type = value_type (val);
  address = value_address (val);

  if (is_object_type (type))
    {
      CORE_ADDR obj_addr;

      /* Get the run-time type, and cast the object into that */

      obj_addr = unpack_pointer (type, value_contents (val));

      if (obj_addr != 0)
	{
	  type = type_from_class (gdbarch, java_class_from_object (val));
	  type = lookup_pointer_type (type);

	  val = value_at (type, address);
	}
    }

  if (TYPE_CODE (type) == TYPE_CODE_PTR && !value_logical_not (val))
    type_print (TYPE_TARGET_TYPE (type), "", stream, -1);

  name = TYPE_TAG_NAME (type);
  if (TYPE_CODE (type) == TYPE_CODE_STRUCT && name != NULL
      && (i = strlen (name), name[i - 1] == ']'))
    {
      gdb_byte buf4[4];
      long length;
      unsigned int things_printed = 0;
      int reps;
      struct type *el_type
	= java_primitive_type_from_name (gdbarch, name, i - 2);
      i = 0;
      read_memory (address + get_java_object_header_size (gdbarch), buf4, 4);

      length = (long) extract_signed_integer (buf4, 4, byte_order);
      fprintf_filtered (stream, "{length: %ld", length);

      if (el_type == NULL)
	{
	  CORE_ADDR element;
	  CORE_ADDR next_element = -1; /* dummy initial value */

	  /* Skip object header and length. */
	  address += get_java_object_header_size (gdbarch) + 4;

	  while (i < length && things_printed < options->print_max)
	    {
	      gdb_byte *buf;

	      buf = alloca (gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT);
	      fputs_filtered (", ", stream);
	      wrap_here (n_spaces (2));

	      if (i > 0)
		element = next_element;
	      else
		{
		  read_memory (address, buf, sizeof (buf));
		  address += gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT;
		  /* FIXME: cagney/2003-05-24: Bogus or what.  It
                     pulls a host sized pointer out of the target and
                     then extracts that as an address (while assuming
                     that the address is unsigned)!  */
		  element = extract_unsigned_integer (buf, sizeof (buf),
						      byte_order);
		}

	      for (reps = 1; i + reps < length; reps++)
		{
		  read_memory (address, buf, sizeof (buf));
		  address += gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT;
		  /* FIXME: cagney/2003-05-24: Bogus or what.  It
                     pulls a host sized pointer out of the target and
                     then extracts that as an address (while assuming
                     that the address is unsigned)!  */
		  next_element = extract_unsigned_integer (buf, sizeof (buf),
							   byte_order);
		  if (next_element != element)
		    break;
		}

	      if (reps == 1)
		fprintf_filtered (stream, "%d: ", i);
	      else
		fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1);

//.........这里部分代码省略.........

static void
java_print_value_fields (struct type *type, const gdb_byte *valaddr,
			 CORE_ADDR address, struct ui_file *stream,
			 int recurse,
			 const struct value_print_options *options)
{
  int i, len, n_baseclasses;

  CHECK_TYPEDEF (type);

  fprintf_filtered (stream, "{");
  len = TYPE_NFIELDS (type);
  n_baseclasses = TYPE_N_BASECLASSES (type);

  if (n_baseclasses > 0)
    {
      int i, n_baseclasses = TYPE_N_BASECLASSES (type);

      for (i = 0; i < n_baseclasses; i++)
	{
	  int boffset;
	  struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
	  char *basename = TYPE_NAME (baseclass);
	  const gdb_byte *base_valaddr;

	  if (BASETYPE_VIA_VIRTUAL (type, i))
	    continue;

	  if (basename != NULL && strcmp (basename, "java.lang.Object") == 0)
	    continue;

	  boffset = 0;

	  if (options->pretty)
	    {
	      fprintf_filtered (stream, "\n");
	      print_spaces_filtered (2 * (recurse + 1), stream);
	    }
	  fputs_filtered ("<", stream);
	  /* Not sure what the best notation is in the case where there is no
	     baseclass name.  */
	  fputs_filtered (basename ? basename : "", stream);
	  fputs_filtered ("> = ", stream);

	  base_valaddr = valaddr;

	  java_print_value_fields (baseclass, base_valaddr, address + boffset,
				   stream, recurse + 1, options);
	  fputs_filtered (", ", stream);
	}

    }

  if (!len && n_baseclasses == 1)
    fprintf_filtered (stream, "<No data fields>");
  else
    {
      int fields_seen = 0;

      for (i = n_baseclasses; i < len; i++)
	{
	  /* If requested, skip printing of static fields.  */
	  if (field_is_static (&TYPE_FIELD (type, i)))
	    {
	      char *name = TYPE_FIELD_NAME (type, i);
	      if (!options->static_field_print)
		continue;
	      if (name != NULL && strcmp (name, "class") == 0)
		continue;
	    }
	  if (fields_seen)
	    fprintf_filtered (stream, ", ");
	  else if (n_baseclasses > 0)
	    {
	      if (options->pretty)
		{
		  fprintf_filtered (stream, "\n");
		  print_spaces_filtered (2 + 2 * recurse, stream);
		  fputs_filtered ("members of ", stream);
		  fputs_filtered (type_name_no_tag (type), stream);
		  fputs_filtered (": ", stream);
		}
	    }
	  fields_seen = 1;

	  if (options->pretty)
	    {
	      fprintf_filtered (stream, "\n");
	      print_spaces_filtered (2 + 2 * recurse, stream);
	    }
	  else
	    {
	      wrap_here (n_spaces (2 + 2 * recurse));
	    }
	  if (options->inspect_it)
	    {
	      if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR)
		fputs_filtered ("\"( ptr \"", stream);
	      else
		fputs_filtered ("\"( nodef \"", stream);
//.........这里部分代码省略.........

static CORE_ADDR
arm_linux_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
		          int struct_return, CORE_ADDR struct_addr)
{
  char *fp;
  int argnum, argreg, nstack_size;

  /* Walk through the list of args and determine how large a temporary
     stack is required.  Need to take care here as structs may be
     passed on the stack, and we have to to push them.  */
  nstack_size = -4 * REGISTER_SIZE;	/* Some arguments go into A1-A4.  */

  if (struct_return)			/* The struct address goes in A1.  */
    nstack_size += REGISTER_SIZE;

  /* Walk through the arguments and add their size to nstack_size.  */
  for (argnum = 0; argnum < nargs; argnum++)
    {
      int len;
      struct type *arg_type;

      arg_type = check_typedef (VALUE_TYPE (args[argnum]));
      len = TYPE_LENGTH (arg_type);

      /* ANSI C code passes float arguments as integers, K&R code
         passes float arguments as doubles.  Correct for this here.  */
      if (TYPE_CODE_FLT == TYPE_CODE (arg_type) && REGISTER_SIZE == len)
	nstack_size += FP_REGISTER_VIRTUAL_SIZE;
      else
	nstack_size += len;
    }

  /* Allocate room on the stack, and initialize our stack frame
     pointer.  */
  fp = NULL;
  if (nstack_size > 0)
    {
      sp -= nstack_size;
      fp = (char *) sp;
    }

  /* Initialize the integer argument register pointer.  */
  argreg = ARM_A1_REGNUM;

  /* The struct_return pointer occupies the first parameter passing
     register.  */
  if (struct_return)
    write_register (argreg++, struct_addr);

  /* Process arguments from left to right.  Store as many as allowed
     in the parameter passing registers (A1-A4), and save the rest on
     the temporary stack.  */
  for (argnum = 0; argnum < nargs; argnum++)
    {
      int len;
      char *val;
      CORE_ADDR regval;
      enum type_code typecode;
      struct type *arg_type, *target_type;

      arg_type = check_typedef (VALUE_TYPE (args[argnum]));
      target_type = TYPE_TARGET_TYPE (arg_type);
      len = TYPE_LENGTH (arg_type);
      typecode = TYPE_CODE (arg_type);
      val = (char *) VALUE_CONTENTS (args[argnum]);

      /* ANSI C code passes float arguments as integers, K&R code
         passes float arguments as doubles.  The .stabs record for 
         for ANSI prototype floating point arguments records the
         type as FP_INTEGER, while a K&R style (no prototype)
         .stabs records the type as FP_FLOAT.  In this latter case
         the compiler converts the float arguments to double before
         calling the function.  */
      if (TYPE_CODE_FLT == typecode && REGISTER_SIZE == len)
	{
	  DOUBLEST dblval;
	  dblval = extract_floating (val, len);
	  len = TARGET_DOUBLE_BIT / TARGET_CHAR_BIT;
	  val = alloca (len);
	  store_floating (val, len, dblval);
	}

      /* If the argument is a pointer to a function, and it is a Thumb
         function, set the low bit of the pointer.  */
      if (TYPE_CODE_PTR == typecode
	  && NULL != target_type
	  && TYPE_CODE_FUNC == TYPE_CODE (target_type))
	{
	  CORE_ADDR regval = extract_address (val, len);
	  if (arm_pc_is_thumb (regval))
	    store_address (val, len, MAKE_THUMB_ADDR (regval));
	}

      /* Copy the argument to general registers or the stack in
         register-sized pieces.  Large arguments are split between
         registers and stack.  */
      while (len > 0)
	{
	  int partial_len = len < REGISTER_SIZE ? len : REGISTER_SIZE;

//.........这里部分代码省略.........

static CORE_ADDR
mn10300_push_dummy_call (struct gdbarch *gdbarch, 
			 struct value *target_func,
			 struct regcache *regcache,
			 CORE_ADDR bp_addr, 
			 int nargs, struct value **args,
			 CORE_ADDR sp, 
			 int struct_return,
			 CORE_ADDR struct_addr)
{
  const int push_size = register_size (gdbarch, E_PC_REGNUM);
  int regs_used;
  int len, arg_len; 
  int stack_offset = 0;
  int argnum;
  char *val, valbuf[MAX_REGISTER_SIZE];

  /* This should be a nop, but align the stack just in case something
     went wrong.  Stacks are four byte aligned on the mn10300.  */
  sp &= ~3;

  /* Now make space on the stack for the args.

     XXX This doesn't appear to handle pass-by-invisible reference
     arguments.  */
  regs_used = struct_return ? 1 : 0;
  for (len = 0, argnum = 0; argnum < nargs; argnum++)
    {
      arg_len = (TYPE_LENGTH (value_type (args[argnum])) + 3) & ~3;
      while (regs_used < 2 && arg_len > 0)
	{
	  regs_used++;
	  arg_len -= push_size;
	}
      len += arg_len;
    }

  /* Allocate stack space.  */
  sp -= len;

  if (struct_return)
    {
      regs_used = 1;
      write_register (E_D0_REGNUM, struct_addr);
    }
  else
    regs_used = 0;

  /* Push all arguments onto the stack. */
  for (argnum = 0; argnum < nargs; argnum++)
    {
      /* FIXME what about structs?  Unions?  */
      if (TYPE_CODE (value_type (*args)) == TYPE_CODE_STRUCT
	  && TYPE_LENGTH (value_type (*args)) > 8)
	{
	  /* Change to pointer-to-type.  */
	  arg_len = push_size;
	  store_unsigned_integer (valbuf, push_size, 
				  VALUE_ADDRESS (*args));
	  val = &valbuf[0];
	}
      else
	{
	  arg_len = TYPE_LENGTH (value_type (*args));
	  val = (char *) value_contents (*args);
	}

      while (regs_used < 2 && arg_len > 0)
	{
	  write_register (regs_used, 
			  extract_unsigned_integer (val, push_size));
	  val += push_size;
	  arg_len -= push_size;
	  regs_used++;
	}

      while (arg_len > 0)
	{
	  write_memory (sp + stack_offset, val, push_size);
	  arg_len -= push_size;
	  val += push_size;
	  stack_offset += push_size;
	}

      args++;
    }

  /* Make space for the flushback area.  */
  sp -= 8;

  /* Push the return address that contains the magic breakpoint.  */
  sp -= 4;
  write_memory_unsigned_integer (sp, push_size, bp_addr);
  /* Update $sp.  */
  regcache_cooked_write_unsigned (regcache, E_SP_REGNUM, sp);
  return sp;
}

int
f_val_print (struct type *type, char *valaddr, int embedded_offset,
	     CORE_ADDR address, struct ui_file *stream, int format,
	     int deref_ref, int recurse, enum val_prettyprint pretty)
{
  unsigned int i = 0;	/* Number of characters printed */
  struct type *elttype;
  LONGEST val;
  CORE_ADDR addr;

  CHECK_TYPEDEF (type);
  switch (TYPE_CODE (type))
    {
    case TYPE_CODE_STRING:
      f77_get_dynamic_length_of_aggregate (type);
      LA_PRINT_STRING (stream, valaddr, TYPE_LENGTH (type), 1, 0);
      break;

    case TYPE_CODE_ARRAY:
      fprintf_filtered (stream, "(");
      f77_print_array (type, valaddr, address, stream, format,
		       deref_ref, recurse, pretty);
      fprintf_filtered (stream, ")");
      break;

    case TYPE_CODE_PTR:
      if (format && format != 's')
	{
	  print_scalar_formatted (valaddr, type, format, 0, stream);
	  break;
	}
      else
	{
	  addr = unpack_pointer (type, valaddr);
	  elttype = check_typedef (TYPE_TARGET_TYPE (type));

	  if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
	    {
	      /* Try to print what function it points to.  */
	      print_address_demangle (addr, stream, demangle);
	      /* Return value is irrelevant except for string pointers.  */
	      return 0;
	    }

	  if (addressprint && format != 's')
	    print_address_numeric (addr, 1, stream);

	  /* For a pointer to char or unsigned char, also print the string
	     pointed to, unless pointer is null.  */
	  if (TYPE_LENGTH (elttype) == 1
	      && TYPE_CODE (elttype) == TYPE_CODE_INT
	      && (format == 0 || format == 's')
	      && addr != 0)
	    i = val_print_string (addr, -1, TYPE_LENGTH (elttype), stream);

	  /* Return number of characters printed, including the terminating
	     '\0' if we reached the end.  val_print_string takes care including
	     the terminating '\0' if necessary.  */
	  return i;
	}
      break;

    case TYPE_CODE_REF:
      elttype = check_typedef (TYPE_TARGET_TYPE (type));
      if (addressprint)
	{
	  CORE_ADDR addr
	    = extract_typed_address (valaddr + embedded_offset, type);
	  fprintf_filtered (stream, "@");
	  print_address_numeric (addr, 1, stream);
	  if (deref_ref)
	    fputs_filtered (": ", stream);
	}
      /* De-reference the reference.  */
      if (deref_ref)
	{
	  if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
	    {
	      struct value *deref_val =
	      value_at
	      (TYPE_TARGET_TYPE (type),
	       unpack_pointer (lookup_pointer_type (builtin_type_void),
			       valaddr + embedded_offset),
	       NULL);
	      val_print (VALUE_TYPE (deref_val),
			 VALUE_CONTENTS (deref_val),
			 0,
			 VALUE_ADDRESS (deref_val),
			 stream,
			 format,
			 deref_ref,
			 recurse,
			 pretty);
	    }
	  else
	    fputs_filtered ("???", stream);
	}
      break;

    case TYPE_CODE_FUNC:
//.........这里部分代码省略.........