| /* Support for printing Pascal values for GDB, the GNU debugger. | 
 |  | 
 |    Copyright (C) 2000-2023 Free Software Foundation, Inc. | 
 |  | 
 |    This file is part of GDB. | 
 |  | 
 |    This program is free software; you can redistribute it and/or modify | 
 |    it under the terms of the GNU General Public License as published by | 
 |    the Free Software Foundation; either version 3 of the License, or | 
 |    (at your option) any later version. | 
 |  | 
 |    This program is distributed in the hope that it will be useful, | 
 |    but WITHOUT ANY WARRANTY; without even the implied warranty of | 
 |    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
 |    GNU General Public License for more details. | 
 |  | 
 |    You should have received a copy of the GNU General Public License | 
 |    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */ | 
 |  | 
 | /* This file is derived from c-valprint.c */ | 
 |  | 
 | #include "defs.h" | 
 | #include "gdbsupport/gdb_obstack.h" | 
 | #include "symtab.h" | 
 | #include "gdbtypes.h" | 
 | #include "expression.h" | 
 | #include "value.h" | 
 | #include "command.h" | 
 | #include "gdbcmd.h" | 
 | #include "gdbcore.h" | 
 | #include "demangle.h" | 
 | #include "valprint.h" | 
 | #include "typeprint.h" | 
 | #include "language.h" | 
 | #include "target.h" | 
 | #include "annotate.h" | 
 | #include "p-lang.h" | 
 | #include "cp-abi.h" | 
 | #include "cp-support.h" | 
 | #include "objfiles.h" | 
 | #include "gdbsupport/byte-vector.h" | 
 | #include "cli/cli-style.h" | 
 |  | 
 |  | 
 | static void pascal_object_print_value_fields (struct value *, struct ui_file *, | 
 | 					      int, | 
 | 					      const struct value_print_options *, | 
 | 					      struct type **, int); | 
 |  | 
 | /* Decorations for Pascal.  */ | 
 |  | 
 | static const struct generic_val_print_decorations p_decorations = | 
 | { | 
 |   "", | 
 |   " + ", | 
 |   " * I", | 
 |   "true", | 
 |   "false", | 
 |   "void", | 
 |   "{", | 
 |   "}" | 
 | }; | 
 |  | 
 | /* See p-lang.h.  */ | 
 |  | 
 | void | 
 | pascal_language::value_print_inner (struct value *val, | 
 | 				    struct ui_file *stream, int recurse, | 
 | 				    const struct value_print_options *options) const | 
 |  | 
 | { | 
 |   struct type *type = check_typedef (val->type ()); | 
 |   struct gdbarch *gdbarch = type->arch (); | 
 |   enum bfd_endian byte_order = type_byte_order (type); | 
 |   unsigned int i = 0;	/* Number of characters printed */ | 
 |   unsigned len; | 
 |   struct type *elttype; | 
 |   unsigned eltlen; | 
 |   int length_pos, length_size, string_pos; | 
 |   struct type *char_type; | 
 |   CORE_ADDR addr; | 
 |   int want_space = 0; | 
 |   const gdb_byte *valaddr = val->contents_for_printing ().data (); | 
 |  | 
 |   switch (type->code ()) | 
 |     { | 
 |     case TYPE_CODE_ARRAY: | 
 |       { | 
 | 	LONGEST low_bound, high_bound; | 
 |  | 
 | 	if (get_array_bounds (type, &low_bound, &high_bound)) | 
 | 	  { | 
 | 	    len = high_bound - low_bound + 1; | 
 | 	    elttype = check_typedef (type->target_type ()); | 
 | 	    eltlen = elttype->length (); | 
 | 	    /* If 's' format is used, try to print out as string. | 
 | 	       If no format is given, print as string if element type | 
 | 	       is of TYPE_CODE_CHAR and element size is 1,2 or 4.  */ | 
 | 	    if (options->format == 's' | 
 | 		|| ((eltlen == 1 || eltlen == 2 || eltlen == 4) | 
 | 		    && elttype->code () == TYPE_CODE_CHAR | 
 | 		    && options->format == 0)) | 
 | 	      { | 
 | 		/* If requested, look for the first null char and only print | 
 | 		   elements up to it.  */ | 
 | 		if (options->stop_print_at_null) | 
 | 		  { | 
 | 		    unsigned int print_max_chars | 
 | 		      = get_print_max_chars (options); | 
 | 		    unsigned int temp_len; | 
 |  | 
 | 		    /* Look for a NULL char.  */ | 
 | 		    for (temp_len = 0; | 
 | 			 (extract_unsigned_integer | 
 | 			    (valaddr + temp_len * eltlen, eltlen, byte_order) | 
 | 			  && temp_len < len | 
 | 			  && temp_len < print_max_chars); | 
 | 			 temp_len++); | 
 | 		    len = temp_len; | 
 | 		  } | 
 |  | 
 | 		printstr (stream, type->target_type (), valaddr, len, | 
 | 			  NULL, 0, options); | 
 | 		i = len; | 
 | 	      } | 
 | 	    else | 
 | 	      { | 
 | 		gdb_printf (stream, "{"); | 
 | 		/* If this is a virtual function table, print the 0th | 
 | 		   entry specially, and the rest of the members normally.  */ | 
 | 		if (pascal_object_is_vtbl_ptr_type (elttype)) | 
 | 		  { | 
 | 		    i = 1; | 
 | 		    gdb_printf (stream, "%d vtable entries", len - 1); | 
 | 		  } | 
 | 		else | 
 | 		  { | 
 | 		    i = 0; | 
 | 		  } | 
 | 		value_print_array_elements (val, stream, recurse, options, i); | 
 | 		gdb_printf (stream, "}"); | 
 | 	      } | 
 | 	    break; | 
 | 	  } | 
 | 	/* Array of unspecified length: treat like pointer to first elt.  */ | 
 | 	addr = val->address (); | 
 |       } | 
 |       goto print_unpacked_pointer; | 
 |  | 
 |     case TYPE_CODE_PTR: | 
 |       if (options->format && options->format != 's') | 
 | 	{ | 
 | 	  value_print_scalar_formatted (val, options, 0, stream); | 
 | 	  break; | 
 | 	} | 
 |       if (options->vtblprint && pascal_object_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 the address, assume that it is unsigned.  */ | 
 | 	  addr = extract_unsigned_integer (valaddr, | 
 | 					   type->length (), byte_order); | 
 | 	  print_address_demangle (options, gdbarch, addr, stream, demangle); | 
 | 	  break; | 
 | 	} | 
 |       check_typedef (type->target_type ()); | 
 |  | 
 |       addr = unpack_pointer (type, valaddr); | 
 |     print_unpacked_pointer: | 
 |       elttype = check_typedef (type->target_type ()); | 
 |  | 
 |       if (elttype->code () == TYPE_CODE_FUNC) | 
 | 	{ | 
 | 	  /* Try to print what function it points to.  */ | 
 | 	  print_address_demangle (options, gdbarch, addr, stream, demangle); | 
 | 	  return; | 
 | 	} | 
 |  | 
 |       if (options->addressprint && options->format != 's') | 
 | 	{ | 
 | 	  gdb_puts (paddress (gdbarch, addr), stream); | 
 | 	  want_space = 1; | 
 | 	} | 
 |  | 
 |       /* For a pointer to char or unsigned char, also print the string | 
 | 	 pointed to, unless pointer is null.  */ | 
 |       if (((elttype->length () == 1 | 
 | 	   && (elttype->code () == TYPE_CODE_INT | 
 | 	       || elttype->code () == TYPE_CODE_CHAR)) | 
 | 	   || ((elttype->length () == 2 || elttype->length () == 4) | 
 | 	       && elttype->code () == TYPE_CODE_CHAR)) | 
 | 	  && (options->format == 0 || options->format == 's') | 
 | 	  && addr != 0) | 
 | 	{ | 
 | 	  if (want_space) | 
 | 	    gdb_puts (" ", stream); | 
 | 	  /* No wide string yet.  */ | 
 | 	  i = val_print_string (elttype, NULL, addr, -1, stream, options); | 
 | 	} | 
 |       /* Also for pointers to pascal strings.  */ | 
 |       /* Note: this is Free Pascal specific: | 
 | 	 as GDB does not recognize stabs pascal strings | 
 | 	 Pascal strings are mapped to records | 
 | 	 with lowercase names PM.  */ | 
 |       if (pascal_is_string_type (elttype, &length_pos, &length_size, | 
 | 				 &string_pos, &char_type, NULL) > 0 | 
 | 	  && addr != 0) | 
 | 	{ | 
 | 	  ULONGEST string_length; | 
 | 	  gdb_byte *buffer; | 
 |  | 
 | 	  if (want_space) | 
 | 	    gdb_puts (" ", stream); | 
 | 	  buffer = (gdb_byte *) xmalloc (length_size); | 
 | 	  read_memory (addr + length_pos, buffer, length_size); | 
 | 	  string_length = extract_unsigned_integer (buffer, length_size, | 
 | 						    byte_order); | 
 | 	  xfree (buffer); | 
 | 	  i = val_print_string (char_type, NULL, | 
 | 				addr + string_pos, string_length, | 
 | 				stream, options); | 
 | 	} | 
 |       else if (pascal_object_is_vtbl_member (type)) | 
 | 	{ | 
 | 	  /* Print vtbl's nicely.  */ | 
 | 	  CORE_ADDR vt_address = unpack_pointer (type, valaddr); | 
 | 	  struct bound_minimal_symbol msymbol = | 
 | 	    lookup_minimal_symbol_by_pc (vt_address); | 
 |  | 
 | 	  /* If 'symbol_print' is set, we did the work above.  */ | 
 | 	  if (!options->symbol_print | 
 | 	      && (msymbol.minsym != NULL) | 
 | 	      && (vt_address == msymbol.value_address ())) | 
 | 	    { | 
 | 	      if (want_space) | 
 | 		gdb_puts (" ", stream); | 
 | 	      gdb_puts ("<", stream); | 
 | 	      gdb_puts (msymbol.minsym->print_name (), stream); | 
 | 	      gdb_puts (">", stream); | 
 | 	      want_space = 1; | 
 | 	    } | 
 | 	  if (vt_address && options->vtblprint) | 
 | 	    { | 
 | 	      struct value *vt_val; | 
 | 	      struct symbol *wsym = NULL; | 
 | 	      struct type *wtype; | 
 |  | 
 | 	      if (want_space) | 
 | 		gdb_puts (" ", stream); | 
 |  | 
 | 	      if (msymbol.minsym != NULL) | 
 | 		{ | 
 | 		  const char *search_name = msymbol.minsym->search_name (); | 
 | 		  wsym = lookup_symbol_search_name (search_name, NULL, | 
 | 						    VAR_DOMAIN).symbol; | 
 | 		} | 
 |  | 
 | 	      if (wsym) | 
 | 		{ | 
 | 		  wtype = wsym->type (); | 
 | 		} | 
 | 	      else | 
 | 		{ | 
 | 		  wtype = type->target_type (); | 
 | 		} | 
 | 	      vt_val = value_at (wtype, vt_address); | 
 | 	      common_val_print (vt_val, stream, recurse + 1, options, | 
 | 				current_language); | 
 | 	      if (options->prettyformat) | 
 | 		{ | 
 | 		  gdb_printf (stream, "\n"); | 
 | 		  print_spaces (2 + 2 * recurse, stream); | 
 | 		} | 
 | 	    } | 
 | 	} | 
 |  | 
 |       return; | 
 |  | 
 |     case TYPE_CODE_REF: | 
 |     case TYPE_CODE_ENUM: | 
 |     case TYPE_CODE_FLAGS: | 
 |     case TYPE_CODE_FUNC: | 
 |     case TYPE_CODE_RANGE: | 
 |     case TYPE_CODE_INT: | 
 |     case TYPE_CODE_FLT: | 
 |     case TYPE_CODE_VOID: | 
 |     case TYPE_CODE_ERROR: | 
 |     case TYPE_CODE_UNDEF: | 
 |     case TYPE_CODE_BOOL: | 
 |     case TYPE_CODE_CHAR: | 
 |       generic_value_print (val, stream, recurse, options, &p_decorations); | 
 |       break; | 
 |  | 
 |     case TYPE_CODE_UNION: | 
 |       if (recurse && !options->unionprint) | 
 | 	{ | 
 | 	  gdb_printf (stream, "{...}"); | 
 | 	  break; | 
 | 	} | 
 |       /* Fall through.  */ | 
 |     case TYPE_CODE_STRUCT: | 
 |       if (options->vtblprint && pascal_object_is_vtbl_ptr_type (type)) | 
 | 	{ | 
 | 	  /* Print the unmangled name if desired.  */ | 
 | 	  /* Print vtable entry - we only get here if NOT using | 
 | 	     -fvtable_thunks.  (Otherwise, look under TYPE_CODE_PTR.)  */ | 
 | 	  /* Extract the address, assume that it is unsigned.  */ | 
 | 	  print_address_demangle | 
 | 	    (options, gdbarch, | 
 | 	     extract_unsigned_integer | 
 | 	       (valaddr + type->field (VTBL_FNADDR_OFFSET).loc_bitpos () / 8, | 
 | 		type->field (VTBL_FNADDR_OFFSET).type ()->length (), | 
 | 		byte_order), | 
 | 	     stream, demangle); | 
 | 	} | 
 |       else | 
 | 	{ | 
 | 	  if (pascal_is_string_type (type, &length_pos, &length_size, | 
 | 				     &string_pos, &char_type, NULL) > 0) | 
 | 	    { | 
 | 	      len = extract_unsigned_integer (valaddr + length_pos, | 
 | 					      length_size, byte_order); | 
 | 	      printstr (stream, char_type, valaddr + string_pos, len, | 
 | 			NULL, 0, options); | 
 | 	    } | 
 | 	  else | 
 | 	    pascal_object_print_value_fields (val, stream, recurse, | 
 | 					      options, NULL, 0); | 
 | 	} | 
 |       break; | 
 |  | 
 |     case TYPE_CODE_SET: | 
 |       elttype = type->index_type (); | 
 |       elttype = check_typedef (elttype); | 
 |       if (elttype->is_stub ()) | 
 | 	{ | 
 | 	  fprintf_styled (stream, metadata_style.style (), "<incomplete type>"); | 
 | 	  break; | 
 | 	} | 
 |       else | 
 | 	{ | 
 | 	  struct type *range = elttype; | 
 | 	  LONGEST low_bound, high_bound; | 
 | 	  int need_comma = 0; | 
 |  | 
 | 	  gdb_puts ("[", stream); | 
 |  | 
 | 	  int bound_info = (get_discrete_bounds (range, &low_bound, &high_bound) | 
 | 			    ? 0 : -1); | 
 | 	  if (low_bound == 0 && high_bound == -1 && type->length () > 0) | 
 | 	    { | 
 | 	      /* If we know the size of the set type, we can figure out the | 
 | 	      maximum value.  */ | 
 | 	      bound_info = 0; | 
 | 	      high_bound = type->length () * TARGET_CHAR_BIT - 1; | 
 | 	      range->bounds ()->high.set_const_val (high_bound); | 
 | 	    } | 
 | 	maybe_bad_bstring: | 
 | 	  if (bound_info < 0) | 
 | 	    { | 
 | 	      fputs_styled ("<error value>", metadata_style.style (), stream); | 
 | 	      goto done; | 
 | 	    } | 
 |  | 
 | 	  for (i = low_bound; i <= high_bound; i++) | 
 | 	    { | 
 | 	      int element = value_bit_index (type, valaddr, i); | 
 |  | 
 | 	      if (element < 0) | 
 | 		{ | 
 | 		  i = element; | 
 | 		  goto maybe_bad_bstring; | 
 | 		} | 
 | 	      if (element) | 
 | 		{ | 
 | 		  if (need_comma) | 
 | 		    gdb_puts (", ", stream); | 
 | 		  print_type_scalar (range, i, stream); | 
 | 		  need_comma = 1; | 
 |  | 
 | 		  if (i + 1 <= high_bound | 
 | 		      && value_bit_index (type, valaddr, ++i)) | 
 | 		    { | 
 | 		      int j = i; | 
 |  | 
 | 		      gdb_puts ("..", stream); | 
 | 		      while (i + 1 <= high_bound | 
 | 			     && value_bit_index (type, valaddr, ++i)) | 
 | 			j = i; | 
 | 		      print_type_scalar (range, j, stream); | 
 | 		    } | 
 | 		} | 
 | 	    } | 
 | 	done: | 
 | 	  gdb_puts ("]", stream); | 
 | 	} | 
 |       break; | 
 |  | 
 |     default: | 
 |       error (_("Invalid pascal type code %d in symbol table."), | 
 | 	     type->code ()); | 
 |     } | 
 | } | 
 |  | 
 |  | 
 | void | 
 | pascal_language::value_print (struct value *val, struct ui_file *stream, | 
 | 			      const struct value_print_options *options) const | 
 | { | 
 |   struct type *type = val->type (); | 
 |   struct value_print_options opts = *options; | 
 |  | 
 |   opts.deref_ref = true; | 
 |  | 
 |   /* If it is a pointer, indicate what it points to. | 
 |  | 
 |      Print type also if it is a reference. | 
 |  | 
 |      Object pascal: if it is a member pointer, we will take care | 
 |      of that when we print it.  */ | 
 |   if (type->code () == TYPE_CODE_PTR | 
 |       || type->code () == TYPE_CODE_REF) | 
 |     { | 
 |       /* Hack:  remove (char *) for char strings.  Their | 
 | 	 type is indicated by the quoted string anyway.  */ | 
 |       if (type->code () == TYPE_CODE_PTR | 
 | 	  && type->name () == NULL | 
 | 	  && type->target_type ()->name () != NULL | 
 | 	  && strcmp (type->target_type ()->name (), "char") == 0) | 
 | 	{ | 
 | 	  /* Print nothing.  */ | 
 | 	} | 
 |       else | 
 | 	{ | 
 | 	  gdb_printf (stream, "("); | 
 | 	  type_print (type, "", stream, -1); | 
 | 	  gdb_printf (stream, ") "); | 
 | 	} | 
 |     } | 
 |   common_val_print (val, stream, 0, &opts, current_language); | 
 | } | 
 |  | 
 |  | 
 | static void | 
 | show_pascal_static_field_print (struct ui_file *file, int from_tty, | 
 | 				struct cmd_list_element *c, const char *value) | 
 | { | 
 |   gdb_printf (file, _("Printing of pascal static members is %s.\n"), | 
 | 	      value); | 
 | } | 
 |  | 
 | static struct obstack dont_print_vb_obstack; | 
 | static struct obstack dont_print_statmem_obstack; | 
 |  | 
 | static void pascal_object_print_static_field (struct value *, | 
 | 					      struct ui_file *, int, | 
 | 					      const struct value_print_options *); | 
 |  | 
 | static void pascal_object_print_value (struct value *, struct ui_file *, int, | 
 | 				       const struct value_print_options *, | 
 | 				       struct type **); | 
 |  | 
 | /* It was changed to this after 2.4.5.  */ | 
 | const char pascal_vtbl_ptr_name[] = | 
 | {'_', '_', 'v', 't', 'b', 'l', '_', 'p', 't', 'r', '_', 't', 'y', 'p', 'e', 0}; | 
 |  | 
 | /* Return truth value for assertion that TYPE is of the type | 
 |    "pointer to virtual function".  */ | 
 |  | 
 | int | 
 | pascal_object_is_vtbl_ptr_type (struct type *type) | 
 | { | 
 |   const char *type_name = type->name (); | 
 |  | 
 |   return (type_name != NULL | 
 | 	  && strcmp (type_name, pascal_vtbl_ptr_name) == 0); | 
 | } | 
 |  | 
 | /* Return truth value for the assertion that TYPE is of the type | 
 |    "pointer to virtual function table".  */ | 
 |  | 
 | int | 
 | pascal_object_is_vtbl_member (struct type *type) | 
 | { | 
 |   if (type->code () == TYPE_CODE_PTR) | 
 |     { | 
 |       type = type->target_type (); | 
 |       if (type->code () == TYPE_CODE_ARRAY) | 
 | 	{ | 
 | 	  type = type->target_type (); | 
 | 	  if (type->code () == TYPE_CODE_STRUCT	/* If not using | 
 | 							   thunks.  */ | 
 | 	      || type->code () == TYPE_CODE_PTR)	/* If using thunks.  */ | 
 | 	    { | 
 | 	      /* Virtual functions tables are full of pointers | 
 | 		 to virtual functions.  */ | 
 | 	      return pascal_object_is_vtbl_ptr_type (type); | 
 | 	    } | 
 | 	} | 
 |     } | 
 |   return 0; | 
 | } | 
 |  | 
 | /* Helper function for print pascal objects. | 
 |  | 
 |    VAL, STREAM, RECURSE, and OPTIONS have the same meanings as in | 
 |    pascal_object_print_value and c_value_print. | 
 |  | 
 |    DONT_PRINT is an array of baseclass types that we | 
 |    should not print, or zero if called from top level.  */ | 
 |  | 
 | static void | 
 | pascal_object_print_value_fields (struct value *val, struct ui_file *stream, | 
 | 				  int recurse, | 
 | 				  const struct value_print_options *options, | 
 | 				  struct type **dont_print_vb, | 
 | 				  int dont_print_statmem) | 
 | { | 
 |   int i, len, n_baseclasses; | 
 |   char *last_dont_print | 
 |     = (char *) obstack_next_free (&dont_print_statmem_obstack); | 
 |  | 
 |   struct type *type = check_typedef (val->type ()); | 
 |  | 
 |   gdb_printf (stream, "{"); | 
 |   len = type->num_fields (); | 
 |   n_baseclasses = TYPE_N_BASECLASSES (type); | 
 |  | 
 |   /* Print out baseclasses such that we don't print | 
 |      duplicates of virtual baseclasses.  */ | 
 |   if (n_baseclasses > 0) | 
 |     pascal_object_print_value (val, stream, recurse + 1, | 
 | 			       options, dont_print_vb); | 
 |  | 
 |   if (!len && n_baseclasses == 1) | 
 |     fprintf_styled (stream, metadata_style.style (), "<No data fields>"); | 
 |   else | 
 |     { | 
 |       struct obstack tmp_obstack = dont_print_statmem_obstack; | 
 |       int fields_seen = 0; | 
 |       const gdb_byte *valaddr = val->contents_for_printing ().data (); | 
 |  | 
 |       if (dont_print_statmem == 0) | 
 | 	{ | 
 | 	  /* If we're at top level, carve out a completely fresh | 
 | 	     chunk of the obstack and use that until this particular | 
 | 	     invocation returns.  */ | 
 | 	  obstack_finish (&dont_print_statmem_obstack); | 
 | 	} | 
 |  | 
 |       for (i = n_baseclasses; i < len; i++) | 
 | 	{ | 
 | 	  /* If requested, skip printing of static fields.  */ | 
 | 	  if (!options->pascal_static_field_print | 
 | 	      && field_is_static (&type->field (i))) | 
 | 	    continue; | 
 | 	  if (fields_seen) | 
 | 	    gdb_printf (stream, ", "); | 
 | 	  else if (n_baseclasses > 0) | 
 | 	    { | 
 | 	      if (options->prettyformat) | 
 | 		{ | 
 | 		  gdb_printf (stream, "\n"); | 
 | 		  print_spaces (2 + 2 * recurse, stream); | 
 | 		  gdb_puts ("members of ", stream); | 
 | 		  gdb_puts (type->name (), stream); | 
 | 		  gdb_puts (": ", stream); | 
 | 		} | 
 | 	    } | 
 | 	  fields_seen = 1; | 
 |  | 
 | 	  if (options->prettyformat) | 
 | 	    { | 
 | 	      gdb_printf (stream, "\n"); | 
 | 	      print_spaces (2 + 2 * recurse, stream); | 
 | 	    } | 
 | 	  else | 
 | 	    { | 
 | 	      stream->wrap_here (2 + 2 * recurse); | 
 | 	    } | 
 |  | 
 | 	  annotate_field_begin (type->field (i).type ()); | 
 |  | 
 | 	  if (field_is_static (&type->field (i))) | 
 | 	    { | 
 | 	      gdb_puts ("static ", stream); | 
 | 	      fprintf_symbol (stream, | 
 | 			      type->field (i).name (), | 
 | 			      current_language->la_language, | 
 | 			      DMGL_PARAMS | DMGL_ANSI); | 
 | 	    } | 
 | 	  else | 
 | 	    fputs_styled (type->field (i).name (), | 
 | 			  variable_name_style.style (), stream); | 
 | 	  annotate_field_name_end (); | 
 | 	  gdb_puts (" = ", stream); | 
 | 	  annotate_field_value (); | 
 |  | 
 | 	  if (!field_is_static (&type->field (i)) | 
 | 	      && TYPE_FIELD_PACKED (type, i)) | 
 | 	    { | 
 | 	      struct value *v; | 
 |  | 
 | 	      /* Bitfields require special handling, especially due to byte | 
 | 		 order problems.  */ | 
 | 	      if (TYPE_FIELD_IGNORE (type, i)) | 
 | 		{ | 
 | 		  fputs_styled ("<optimized out or zero length>", | 
 | 				metadata_style.style (), stream); | 
 | 		} | 
 | 	      else if (val->bits_synthetic_pointer | 
 | 		       (type->field (i).loc_bitpos (), | 
 | 			TYPE_FIELD_BITSIZE (type, i))) | 
 | 		{ | 
 | 		  fputs_styled (_("<synthetic pointer>"), | 
 | 				metadata_style.style (), stream); | 
 | 		} | 
 | 	      else | 
 | 		{ | 
 | 		  struct value_print_options opts = *options; | 
 |  | 
 | 		  v = value_field_bitfield (type, i, valaddr, 0, val); | 
 |  | 
 | 		  opts.deref_ref = false; | 
 | 		  common_val_print (v, stream, recurse + 1, &opts, | 
 | 				    current_language); | 
 | 		} | 
 | 	    } | 
 | 	  else | 
 | 	    { | 
 | 	      if (TYPE_FIELD_IGNORE (type, i)) | 
 | 		{ | 
 | 		  fputs_styled ("<optimized out or zero length>", | 
 | 				metadata_style.style (), stream); | 
 | 		} | 
 | 	      else if (field_is_static (&type->field (i))) | 
 | 		{ | 
 | 		  /* struct value *v = value_static_field (type, i); | 
 | 		     v4.17 specific.  */ | 
 | 		  struct value *v; | 
 |  | 
 | 		  v = value_field_bitfield (type, i, valaddr, 0, val); | 
 |  | 
 | 		  if (v == NULL) | 
 | 		    val_print_optimized_out (NULL, stream); | 
 | 		  else | 
 | 		    pascal_object_print_static_field (v, stream, recurse + 1, | 
 | 						      options); | 
 | 		} | 
 | 	      else | 
 | 		{ | 
 | 		  struct value_print_options opts = *options; | 
 |  | 
 | 		  opts.deref_ref = false; | 
 |  | 
 | 		  struct value *v = val->primitive_field (0, i, | 
 | 							  val->type ()); | 
 | 		  common_val_print (v, stream, recurse + 1, &opts, | 
 | 				    current_language); | 
 | 		} | 
 | 	    } | 
 | 	  annotate_field_end (); | 
 | 	} | 
 |  | 
 |       if (dont_print_statmem == 0) | 
 | 	{ | 
 | 	  /* Free the space used to deal with the printing | 
 | 	     of the members from top level.  */ | 
 | 	  obstack_free (&dont_print_statmem_obstack, last_dont_print); | 
 | 	  dont_print_statmem_obstack = tmp_obstack; | 
 | 	} | 
 |  | 
 |       if (options->prettyformat) | 
 | 	{ | 
 | 	  gdb_printf (stream, "\n"); | 
 | 	  print_spaces (2 * recurse, stream); | 
 | 	} | 
 |     } | 
 |   gdb_printf (stream, "}"); | 
 | } | 
 |  | 
 | /* Special val_print routine to avoid printing multiple copies of virtual | 
 |    baseclasses.  */ | 
 |  | 
 | static void | 
 | pascal_object_print_value (struct value *val, struct ui_file *stream, | 
 | 			   int recurse, | 
 | 			   const struct value_print_options *options, | 
 | 			   struct type **dont_print_vb) | 
 | { | 
 |   struct type **last_dont_print | 
 |     = (struct type **) obstack_next_free (&dont_print_vb_obstack); | 
 |   struct obstack tmp_obstack = dont_print_vb_obstack; | 
 |   struct type *type = check_typedef (val->type ()); | 
 |   int i, n_baseclasses = TYPE_N_BASECLASSES (type); | 
 |  | 
 |   if (dont_print_vb == 0) | 
 |     { | 
 |       /* If we're at top level, carve out a completely fresh | 
 | 	 chunk of the obstack and use that until this particular | 
 | 	 invocation returns.  */ | 
 |       /* Bump up the high-water mark.  Now alpha is omega.  */ | 
 |       obstack_finish (&dont_print_vb_obstack); | 
 |     } | 
 |  | 
 |   for (i = 0; i < n_baseclasses; i++) | 
 |     { | 
 |       LONGEST boffset = 0; | 
 |       struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); | 
 |       const char *basename = baseclass->name (); | 
 |       int skip = 0; | 
 |  | 
 |       if (BASETYPE_VIA_VIRTUAL (type, i)) | 
 | 	{ | 
 | 	  struct type **first_dont_print | 
 | 	    = (struct type **) obstack_base (&dont_print_vb_obstack); | 
 |  | 
 | 	  int j = (struct type **) obstack_next_free (&dont_print_vb_obstack) | 
 | 	    - first_dont_print; | 
 |  | 
 | 	  while (--j >= 0) | 
 | 	    if (baseclass == first_dont_print[j]) | 
 | 	      goto flush_it; | 
 |  | 
 | 	  obstack_ptr_grow (&dont_print_vb_obstack, baseclass); | 
 | 	} | 
 |  | 
 |       struct value *base_value; | 
 |       try | 
 | 	{ | 
 | 	  base_value = val->primitive_field (0, i, type); | 
 | 	} | 
 |       catch (const gdb_exception_error &ex) | 
 | 	{ | 
 | 	  base_value = nullptr; | 
 | 	  if (ex.error == NOT_AVAILABLE_ERROR) | 
 | 	    skip = -1; | 
 | 	  else | 
 | 	    skip = 1; | 
 | 	} | 
 |  | 
 |       if (skip == 0) | 
 | 	{ | 
 | 	  /* The virtual base class pointer might have been clobbered by the | 
 | 	     user program. Make sure that it still points to a valid memory | 
 | 	     location.  */ | 
 |  | 
 | 	  if (boffset < 0 || boffset >= type->length ()) | 
 | 	    { | 
 | 	      CORE_ADDR address= val->address (); | 
 | 	      gdb::byte_vector buf (baseclass->length ()); | 
 |  | 
 | 	      if (target_read_memory (address + boffset, buf.data (), | 
 | 				      baseclass->length ()) != 0) | 
 | 		skip = 1; | 
 | 	      base_value = value_from_contents_and_address (baseclass, | 
 | 							    buf.data (), | 
 | 							    address + boffset); | 
 | 	      baseclass = base_value->type (); | 
 | 	      boffset = 0; | 
 | 	    } | 
 | 	} | 
 |  | 
 |       if (options->prettyformat) | 
 | 	{ | 
 | 	  gdb_printf (stream, "\n"); | 
 | 	  print_spaces (2 * recurse, stream); | 
 | 	} | 
 |       gdb_puts ("<", stream); | 
 |       /* Not sure what the best notation is in the case where there is no | 
 | 	 baseclass name.  */ | 
 |  | 
 |       gdb_puts (basename ? basename : "", stream); | 
 |       gdb_puts ("> = ", stream); | 
 |  | 
 |       if (skip < 0) | 
 | 	val_print_unavailable (stream); | 
 |       else if (skip > 0) | 
 | 	val_print_invalid_address (stream); | 
 |       else | 
 | 	pascal_object_print_value_fields | 
 | 	  (base_value, stream, recurse, options, | 
 | 	   (struct type **) obstack_base (&dont_print_vb_obstack), | 
 | 	   0); | 
 |       gdb_puts (", ", stream); | 
 |  | 
 |     flush_it: | 
 |       ; | 
 |     } | 
 |  | 
 |   if (dont_print_vb == 0) | 
 |     { | 
 |       /* Free the space used to deal with the printing | 
 | 	 of this type from top level.  */ | 
 |       obstack_free (&dont_print_vb_obstack, last_dont_print); | 
 |       /* Reset watermark so that we can continue protecting | 
 | 	 ourselves from whatever we were protecting ourselves.  */ | 
 |       dont_print_vb_obstack = tmp_obstack; | 
 |     } | 
 | } | 
 |  | 
 | /* Print value of a static member. | 
 |    To avoid infinite recursion when printing a class that contains | 
 |    a static instance of the class, we keep the addresses of all printed | 
 |    static member classes in an obstack and refuse to print them more | 
 |    than once. | 
 |  | 
 |    VAL contains the value to print, STREAM, RECURSE, and OPTIONS | 
 |    have the same meanings as in c_val_print.  */ | 
 |  | 
 | static void | 
 | pascal_object_print_static_field (struct value *val, | 
 | 				  struct ui_file *stream, | 
 | 				  int recurse, | 
 | 				  const struct value_print_options *options) | 
 | { | 
 |   struct type *type = val->type (); | 
 |   struct value_print_options opts; | 
 |  | 
 |   if (val->entirely_optimized_out ()) | 
 |     { | 
 |       val_print_optimized_out (val, stream); | 
 |       return; | 
 |     } | 
 |  | 
 |   if (type->code () == TYPE_CODE_STRUCT) | 
 |     { | 
 |       CORE_ADDR *first_dont_print, addr; | 
 |       int i; | 
 |  | 
 |       first_dont_print | 
 | 	= (CORE_ADDR *) obstack_base (&dont_print_statmem_obstack); | 
 |       i = (CORE_ADDR *) obstack_next_free (&dont_print_statmem_obstack) | 
 | 	- first_dont_print; | 
 |  | 
 |       while (--i >= 0) | 
 | 	{ | 
 | 	  if (val->address () == first_dont_print[i]) | 
 | 	    { | 
 | 	      fputs_styled (_("\ | 
 | <same as static member of an already seen type>"), | 
 | 			    metadata_style.style (), stream); | 
 | 	      return; | 
 | 	    } | 
 | 	} | 
 |  | 
 |       addr = val->address (); | 
 |       obstack_grow (&dont_print_statmem_obstack, (char *) &addr, | 
 | 		    sizeof (CORE_ADDR)); | 
 |  | 
 |       type = check_typedef (type); | 
 |       pascal_object_print_value_fields (val, stream, recurse, | 
 | 					options, NULL, 1); | 
 |       return; | 
 |     } | 
 |  | 
 |   opts = *options; | 
 |   opts.deref_ref = false; | 
 |   common_val_print (val, stream, recurse, &opts, current_language); | 
 | } | 
 |  | 
 | void _initialize_pascal_valprint (); | 
 | void | 
 | _initialize_pascal_valprint () | 
 | { | 
 |   add_setshow_boolean_cmd ("pascal_static-members", class_support, | 
 | 			   &user_print_options.pascal_static_field_print, _("\ | 
 | Set printing of pascal static members."), _("\ | 
 | Show printing of pascal static members."), NULL, | 
 | 			   NULL, | 
 | 			   show_pascal_static_field_print, | 
 | 			   &setprintlist, &showprintlist); | 
 | } |