Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 3461 insertions, 0 deletions

diff --git a/gdb/valops.c b/gdb/valops.c
new file mode 100644
index 0000000..77d2396
--- /dev/null
+++ b/gdb/valops.c
@@ -0,0 +1,3461 @@
+/* Perform non-arithmetic operations on values, for GDB.
+   Copyright 1986, 87, 89, 91, 92, 93, 94, 95, 96, 97, 1998
+   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 2 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, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include "defs.h"
+#include "symtab.h"
+#include "gdbtypes.h"
+#include "value.h"
+#include "frame.h"
+#include "inferior.h"
+#include "gdbcore.h"
+#include "target.h"
+#include "demangle.h"
+#include "language.h"
+#include "gdbcmd.h"
+
+#include <errno.h>
+#include "gdb_string.h"
+
+/* Default to coercing float to double in function calls only when there is
+   no prototype.  Otherwise on targets where the debug information is incorrect
+   for either the prototype or non-prototype case, we can force it by defining
+   COERCE_FLOAT_TO_DOUBLE in the target configuration file. */
+
+#ifndef COERCE_FLOAT_TO_DOUBLE
+#define COERCE_FLOAT_TO_DOUBLE (param_type == NULL)
+#endif
+
+/* Flag indicating HP compilers were used; needed to correctly handle some
+   value operations with HP aCC code/runtime. */
+extern int hp_som_som_object_present;
+
+
+/* Local functions.  */
+
+static int typecmp PARAMS ((int staticp, struct type *t1[], value_ptr t2[]));
+
+#ifdef CALL_DUMMY
+static CORE_ADDR find_function_addr PARAMS ((value_ptr, struct type **));
+static value_ptr value_arg_coerce PARAMS ((value_ptr, struct type *, int));
+#endif
+
+
+#ifndef PUSH_ARGUMENTS
+static CORE_ADDR value_push PARAMS ((CORE_ADDR, value_ptr));
+#endif
+
+static value_ptr search_struct_field PARAMS ((char *, value_ptr, int,
+					      struct type *, int));
+
+static value_ptr search_struct_field_aux PARAMS ((char *, value_ptr, int,
+                                                  struct type *, int, int *, char *,
+                                                  struct type **));
+
+static value_ptr search_struct_method PARAMS ((char *, value_ptr *,
+					       value_ptr *,
+					       int, int *, struct type *));
+
+static int check_field_in PARAMS ((struct type *, const char *));
+
+static CORE_ADDR allocate_space_in_inferior PARAMS ((int));
+
+static value_ptr cast_into_complex PARAMS ((struct type *, value_ptr));
+
+void _initialize_valops PARAMS ((void));
+
+#define VALUE_SUBSTRING_START(VAL) VALUE_FRAME(VAL)
+
+/* Flag for whether we want to abandon failed expression evals by default.  */
+
+#if 0
+static int auto_abandon = 0;
+#endif
+
+int overload_resolution = 0;
+
+
+
+/* Find the address of function name NAME in the inferior.  */
+
+value_ptr
+find_function_in_inferior (name)
+     char *name;
+{
+  register struct symbol *sym;
+  sym = lookup_symbol (name, 0, VAR_NAMESPACE, 0, NULL);
+  if (sym != NULL)
+    {
+      if (SYMBOL_CLASS (sym) != LOC_BLOCK)
+	{
+	  error ("\"%s\" exists in this program but is not a function.",
+		 name);
+	}
+      return value_of_variable (sym, NULL);
+    }
+  else
+    {
+      struct minimal_symbol *msymbol = lookup_minimal_symbol(name, NULL, NULL);
+      if (msymbol != NULL)
+	{
+	  struct type *type;
+	  LONGEST maddr;
+	  type = lookup_pointer_type (builtin_type_char);
+	  type = lookup_function_type (type);
+	  type = lookup_pointer_type (type);
+	  maddr = (LONGEST) SYMBOL_VALUE_ADDRESS (msymbol);
+	  return value_from_longest (type, maddr);
+	}
+      else
+	{
+          if (!target_has_execution)
+	    error ("evaluation of this expression requires the target program to be active");
+          else
+	    error ("evaluation of this expression requires the program to have a function \"%s\".", name);
+	}
+    }
+}
+
+/* Allocate NBYTES of space in the inferior using the inferior's malloc
+   and return a value that is a pointer to the allocated space. */
+
+value_ptr
+value_allocate_space_in_inferior (len)
+     int len;
+{
+  value_ptr blocklen;
+  register value_ptr val = find_function_in_inferior ("malloc");
+
+  blocklen = value_from_longest (builtin_type_int, (LONGEST) len);
+  val = call_function_by_hand (val, 1, &blocklen);
+  if (value_logical_not (val))
+    {
+      if (!target_has_execution)
+        error ("No memory available to program now: you need to start the target first");
+      else 
+        error ("No memory available to program: call to malloc failed");
+    }
+  return val;
+}
+
+static CORE_ADDR
+allocate_space_in_inferior (len)
+     int len;
+{
+  return value_as_long (value_allocate_space_in_inferior (len));
+}
+
+/* Cast value ARG2 to type TYPE and return as a value.
+   More general than a C cast: accepts any two types of the same length,
+   and if ARG2 is an lvalue it can be cast into anything at all.  */
+/* In C++, casts may change pointer or object representations.  */
+
+value_ptr
+value_cast (type, arg2)
+     struct type *type;
+     register value_ptr arg2;
+{
+  register enum type_code code1;
+  register enum type_code code2;
+  register int scalar;
+  struct type *type2;
+
+  int convert_to_boolean = 0;
+  
+  if (VALUE_TYPE (arg2) == type)
+    return arg2;
+
+  CHECK_TYPEDEF (type);
+  code1 = TYPE_CODE (type);
+  COERCE_REF(arg2);
+  type2 = check_typedef (VALUE_TYPE (arg2));
+
+  /* A cast to an undetermined-length array_type, such as (TYPE [])OBJECT,
+     is treated like a cast to (TYPE [N])OBJECT,
+     where N is sizeof(OBJECT)/sizeof(TYPE). */
+  if (code1 == TYPE_CODE_ARRAY)
+    {
+      struct type *element_type = TYPE_TARGET_TYPE (type);
+      unsigned element_length = TYPE_LENGTH (check_typedef (element_type));
+      if (element_length > 0
+	  && TYPE_ARRAY_UPPER_BOUND_TYPE (type) == BOUND_CANNOT_BE_DETERMINED)
+	{
+	  struct type *range_type = TYPE_INDEX_TYPE (type);
+	  int val_length = TYPE_LENGTH (type2);
+	  LONGEST low_bound, high_bound, new_length;
+	  if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0)
+	    low_bound = 0, high_bound = 0;
+	  new_length = val_length / element_length;
+	  if (val_length % element_length != 0)
+	    warning("array element type size does not divide object size in cast");
+	  /* FIXME-type-allocation: need a way to free this type when we are
+	     done with it.  */
+	  range_type = create_range_type ((struct type *) NULL,
+					  TYPE_TARGET_TYPE (range_type),
+					  low_bound,
+					  new_length + low_bound - 1);
+	  VALUE_TYPE (arg2) = create_array_type ((struct type *) NULL,
+						 element_type, range_type);
+	  return arg2;
+	}
+    }
+
+  if (current_language->c_style_arrays
+      && TYPE_CODE (type2) == TYPE_CODE_ARRAY)
+    arg2 = value_coerce_array (arg2);
+
+  if (TYPE_CODE (type2) == TYPE_CODE_FUNC)
+    arg2 = value_coerce_function (arg2);
+
+  type2 = check_typedef (VALUE_TYPE (arg2));
+  COERCE_VARYING_ARRAY (arg2, type2);
+  code2 = TYPE_CODE (type2);
+
+  if (code1 == TYPE_CODE_COMPLEX)
+    return cast_into_complex (type, arg2);
+  if (code1 == TYPE_CODE_BOOL)
+    {
+      code1 = TYPE_CODE_INT;
+      convert_to_boolean = 1;
+    }
+  if (code1 == TYPE_CODE_CHAR)
+    code1 = TYPE_CODE_INT;
+  if (code2 == TYPE_CODE_BOOL || code2 == TYPE_CODE_CHAR)
+    code2 = TYPE_CODE_INT;
+
+  scalar = (code2 == TYPE_CODE_INT || code2 == TYPE_CODE_FLT
+	    || code2 == TYPE_CODE_ENUM || code2 == TYPE_CODE_RANGE);
+
+  if (   code1 == TYPE_CODE_STRUCT
+      && code2 == TYPE_CODE_STRUCT
+      && TYPE_NAME (type) != 0)
+    {
+      /* Look in the type of the source to see if it contains the
+	 type of the target as a superclass.  If so, we'll need to
+	 offset the object in addition to changing its type.  */
+      value_ptr v = search_struct_field (type_name_no_tag (type),
+					 arg2, 0, type2, 1);
+      if (v)
+	{
+	  VALUE_TYPE (v) = type;
+	  return v;
+	}
+    }
+  if (code1 == TYPE_CODE_FLT && scalar)
+    return value_from_double (type, value_as_double (arg2));
+  else if ((code1 == TYPE_CODE_INT || code1 == TYPE_CODE_ENUM
+	    || code1 == TYPE_CODE_RANGE)
+	   && (scalar || code2 == TYPE_CODE_PTR))
+    {
+      LONGEST longest;
+      
+      if (hp_som_som_object_present &&  /* if target compiled by HP aCC */ 
+          (code2 == TYPE_CODE_PTR))
+        {
+          unsigned int * ptr;
+          value_ptr retvalp;
+          
+          switch (TYPE_CODE (TYPE_TARGET_TYPE (type2)))
+            {
+              /* With HP aCC, pointers to data members have a bias */ 
+              case TYPE_CODE_MEMBER:
+                retvalp = value_from_longest (type, value_as_long (arg2));
+                ptr = (unsigned int *) VALUE_CONTENTS (retvalp); /* force evaluation */
+                *ptr &= ~0x20000000; /* zap 29th bit to remove bias */ 
+                return retvalp;
+
+              /* While pointers to methods don't really point to a function */ 
+              case TYPE_CODE_METHOD:
+                error ("Pointers to methods not supported with HP aCC");
+
+              default:
+                break; /* fall out and go to normal handling */ 
+            }
+        }
+      longest = value_as_long (arg2);
+      return value_from_longest (type, convert_to_boolean ? (LONGEST) (longest ? 1 : 0) : longest);
+    }
+  else if (TYPE_LENGTH (type) == TYPE_LENGTH (type2))
+    {
+      if (code1 == TYPE_CODE_PTR && code2 == TYPE_CODE_PTR)
+	{
+	  struct type *t1 = check_typedef (TYPE_TARGET_TYPE (type));
+	  struct type *t2 = check_typedef (TYPE_TARGET_TYPE (type2));
+	  if (   TYPE_CODE (t1) == TYPE_CODE_STRUCT
+	      && TYPE_CODE (t2) == TYPE_CODE_STRUCT
+	      && !value_logical_not (arg2))
+	    {
+	      value_ptr v;
+
+	      /* Look in the type of the source to see if it contains the
+		 type of the target as a superclass.  If so, we'll need to
+		 offset the pointer rather than just change its type.  */
+	      if (TYPE_NAME (t1) != NULL)
+		{
+		  v = search_struct_field (type_name_no_tag (t1),
+					   value_ind (arg2), 0, t2, 1);
+		  if (v)
+		    {
+		      v = value_addr (v);
+		      VALUE_TYPE (v) = type;
+		      return v;
+		    }
+		}
+
+	      /* Look in the type of the target to see if it contains the
+		 type of the source as a superclass.  If so, we'll need to
+		 offset the pointer rather than just change its type.
+		 FIXME: This fails silently with virtual inheritance.  */
+	      if (TYPE_NAME (t2) != NULL)
+		{
+		  v = search_struct_field (type_name_no_tag (t2),
+					   value_zero (t1, not_lval), 0, t1, 1);
+		  if (v)
+		    {
+		      value_ptr v2 = value_ind (arg2);
+		      VALUE_ADDRESS (v2) -= VALUE_ADDRESS (v)
+					    + VALUE_OFFSET (v);
+		      v2 = value_addr (v2);
+		      VALUE_TYPE (v2) = type;
+		      return v2;
+		    }
+		}
+	    }
+	  /* No superclass found, just fall through to change ptr type.  */
+	}
+      VALUE_TYPE (arg2) = type;
+      VALUE_ENCLOSING_TYPE (arg2) = type;  /* pai: chk_val */
+      VALUE_POINTED_TO_OFFSET (arg2) = 0;  /* pai: chk_val */
+      return arg2;
+    }
+  else if (chill_varying_type (type))
+    {
+      struct type *range1, *range2, *eltype1, *eltype2;
+      value_ptr val;
+      int count1, count2;
+      LONGEST low_bound, high_bound;
+      char *valaddr, *valaddr_data;
+      /* For lint warning about eltype2 possibly uninitialized: */
+      eltype2 = NULL;
+      if (code2 == TYPE_CODE_BITSTRING)
+	error ("not implemented: converting bitstring to varying type");
+      if ((code2 != TYPE_CODE_ARRAY && code2 != TYPE_CODE_STRING)
+	  || (eltype1 = check_typedef (TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type, 1))),
+	      eltype2 = check_typedef (TYPE_TARGET_TYPE (type2)),
+	      (TYPE_LENGTH (eltype1) != TYPE_LENGTH (eltype2)
+	       /* || TYPE_CODE (eltype1) != TYPE_CODE (eltype2) */ )))
+	error ("Invalid conversion to varying type");
+      range1 = TYPE_FIELD_TYPE (TYPE_FIELD_TYPE (type, 1), 0);
+      range2 = TYPE_FIELD_TYPE (type2, 0);
+      if (get_discrete_bounds (range1, &low_bound, &high_bound) < 0)
+	count1 = -1;
+      else
+	count1 = high_bound - low_bound + 1;
+      if (get_discrete_bounds (range2, &low_bound, &high_bound) < 0)
+	count1 = -1, count2 = 0;  /* To force error before */
+      else
+	count2 = high_bound - low_bound + 1;
+      if (count2 > count1)
+	error ("target varying type is too small");
+      val = allocate_value (type);
+      valaddr = VALUE_CONTENTS_RAW (val);
+      valaddr_data = valaddr + TYPE_FIELD_BITPOS (type, 1) / 8;
+      /* Set val's __var_length field to count2. */
+      store_signed_integer (valaddr, TYPE_LENGTH (TYPE_FIELD_TYPE (type, 0)),
+			    count2);
+      /* Set the __var_data field to count2 elements copied from arg2. */
+      memcpy (valaddr_data, VALUE_CONTENTS (arg2),
+	      count2 * TYPE_LENGTH (eltype2));
+      /* Zero the rest of the __var_data field of val. */
+      memset (valaddr_data + count2 * TYPE_LENGTH (eltype2), '\0',
+	      (count1 - count2) * TYPE_LENGTH (eltype2));
+      return val;
+    }
+  else if (VALUE_LVAL (arg2) == lval_memory)
+    {
+      return value_at_lazy (type, VALUE_ADDRESS (arg2) + VALUE_OFFSET (arg2),
+			    VALUE_BFD_SECTION (arg2));
+    }
+  else if (code1 == TYPE_CODE_VOID)
+    {
+      return value_zero (builtin_type_void, not_lval);
+    }
+  else
+    {
+      error ("Invalid cast.");
+      return 0;
+    }
+}
+
+/* Create a value of type TYPE that is zero, and return it.  */
+
+value_ptr
+value_zero (type, lv)
+     struct type *type;
+     enum lval_type lv;
+{
+  register value_ptr val = allocate_value (type);
+
+  memset (VALUE_CONTENTS (val), 0, TYPE_LENGTH (check_typedef (type)));
+  VALUE_LVAL (val) = lv;
+
+  return val;
+}
+
+/* Return a value with type TYPE located at ADDR.  
+
+   Call value_at only if the data needs to be fetched immediately;
+   if we can be 'lazy' and defer the fetch, perhaps indefinately, call
+   value_at_lazy instead.  value_at_lazy simply records the address of
+   the data and sets the lazy-evaluation-required flag.  The lazy flag 
+   is tested in the VALUE_CONTENTS macro, which is used if and when 
+   the contents are actually required. 
+
+   Note: value_at does *NOT* handle embedded offsets; perform such
+   adjustments before or after calling it. */
+
+value_ptr
+value_at (type, addr, sect)
+     struct type *type;
+     CORE_ADDR addr;
+     asection *sect;
+{
+  register value_ptr val;
+
+  if (TYPE_CODE (check_typedef (type)) == TYPE_CODE_VOID)
+    error ("Attempt to dereference a generic pointer.");
+
+  val = allocate_value (type);
+
+#ifdef GDB_TARGET_IS_D10V
+  if (TYPE_CODE (type) == TYPE_CODE_PTR
+      && TYPE_TARGET_TYPE (type)
+      && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC))
+    {
+      /* pointer to function */
+      unsigned long num;
+      unsigned short snum;
+      snum = read_memory_unsigned_integer (addr, 2);
+      num = D10V_MAKE_IADDR(snum);
+      store_address ( VALUE_CONTENTS_RAW (val), 4, num);
+    }
+  else if (TYPE_CODE(type) == TYPE_CODE_PTR)
+    {
+      /* pointer to data */
+      unsigned long num;
+      unsigned short snum;
+      snum = read_memory_unsigned_integer (addr, 2);
+      num = D10V_MAKE_DADDR(snum);
+      store_address ( VALUE_CONTENTS_RAW (val), 4, num); 
+    }
+  else
+#endif
+    read_memory_section (addr, VALUE_CONTENTS_ALL_RAW (val), TYPE_LENGTH (type), sect);
+
+  VALUE_LVAL (val) = lval_memory;
+  VALUE_ADDRESS (val) = addr;
+  VALUE_BFD_SECTION (val) = sect;
+
+  return val;
+}
+
+/* Return a lazy value with type TYPE located at ADDR (cf. value_at).  */
+
+value_ptr
+value_at_lazy (type, addr, sect)
+     struct type *type;
+     CORE_ADDR addr;
+     asection *sect;
+{
+  register value_ptr val;
+
+  if (TYPE_CODE (check_typedef (type)) == TYPE_CODE_VOID)
+    error ("Attempt to dereference a generic pointer.");
+
+  val = allocate_value (type);
+
+  VALUE_LVAL (val) = lval_memory;
+  VALUE_ADDRESS (val) = addr;
+  VALUE_LAZY (val) = 1;
+  VALUE_BFD_SECTION (val) = sect;
+
+  return val;
+}
+
+/* Called only from the VALUE_CONTENTS and VALUE_CONTENTS_ALL macros, 
+   if the current data for a variable needs to be loaded into 
+   VALUE_CONTENTS(VAL).  Fetches the data from the user's process, and 
+   clears the lazy flag to indicate that the data in the buffer is valid.
+
+   If the value is zero-length, we avoid calling read_memory, which would
+   abort.  We mark the value as fetched anyway -- all 0 bytes of it.
+
+   This function returns a value because it is used in the VALUE_CONTENTS
+   macro as part of an expression, where a void would not work.  The
+   value is ignored.  */
+
+int
+value_fetch_lazy (val)
+     register value_ptr val;
+{
+  CORE_ADDR addr = VALUE_ADDRESS (val) + VALUE_OFFSET (val);
+  int length = TYPE_LENGTH (VALUE_ENCLOSING_TYPE (val));
+
+#ifdef GDB_TARGET_IS_D10V
+  struct type *type = VALUE_TYPE(val);
+  if (TYPE_CODE (type) == TYPE_CODE_PTR
+      && TYPE_TARGET_TYPE (type)
+      && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC))
+    {
+      /* pointer to function */
+      unsigned long num;
+      unsigned short snum;
+      snum = read_memory_unsigned_integer (addr, 2);
+      num = D10V_MAKE_IADDR(snum);
+      store_address ( VALUE_CONTENTS_RAW (val), 4, num);
+    }
+  else if (TYPE_CODE(type) == TYPE_CODE_PTR)
+    {
+      /* pointer to data */
+      unsigned long num;
+      unsigned short snum;
+      snum = read_memory_unsigned_integer (addr, 2);
+      num = D10V_MAKE_DADDR(snum);
+      store_address ( VALUE_CONTENTS_RAW (val), 4, num); 
+    }
+  else
+#endif
+
+  if (length)
+    read_memory_section (addr, VALUE_CONTENTS_ALL_RAW (val), length,
+			 VALUE_BFD_SECTION (val));
+  VALUE_LAZY (val) = 0;
+  return 0;
+}
+
+
+/* Store the contents of FROMVAL into the location of TOVAL.
+   Return a new value with the location of TOVAL and contents of FROMVAL.  */
+
+value_ptr
+value_assign (toval, fromval)
+     register value_ptr toval, fromval;
+{
+  register struct type *type;
+  register value_ptr val;
+  char raw_buffer[MAX_REGISTER_RAW_SIZE];
+  int use_buffer = 0;
+
+  if (!toval->modifiable)
+    error ("Left operand of assignment is not a modifiable lvalue.");
+
+  COERCE_REF (toval);
+
+  type = VALUE_TYPE (toval);
+  if (VALUE_LVAL (toval) != lval_internalvar)
+    fromval = value_cast (type, fromval);
+  else
+    COERCE_ARRAY (fromval);
+  CHECK_TYPEDEF (type);
+
+  /* If TOVAL is a special machine register requiring conversion
+     of program values to a special raw format,
+     convert FROMVAL's contents now, with result in `raw_buffer',
+     and set USE_BUFFER to the number of bytes to write.  */
+
+#ifdef REGISTER_CONVERTIBLE
+  if (VALUE_REGNO (toval) >= 0
+      && REGISTER_CONVERTIBLE (VALUE_REGNO (toval)))
+    {
+      int regno = VALUE_REGNO (toval);
+      if (REGISTER_CONVERTIBLE (regno))
+	{
+	  struct type *fromtype = check_typedef (VALUE_TYPE (fromval));
+	  REGISTER_CONVERT_TO_RAW (fromtype, regno,
+				   VALUE_CONTENTS (fromval), raw_buffer);
+	  use_buffer = REGISTER_RAW_SIZE (regno);
+	}
+    }
+#endif
+
+  switch (VALUE_LVAL (toval))
+    {
+    case lval_internalvar:
+      set_internalvar (VALUE_INTERNALVAR (toval), fromval);
+      val = value_copy (VALUE_INTERNALVAR (toval)->value);
+      VALUE_ENCLOSING_TYPE (val) = VALUE_ENCLOSING_TYPE (fromval);
+      VALUE_EMBEDDED_OFFSET (val) = VALUE_EMBEDDED_OFFSET (fromval);
+      VALUE_POINTED_TO_OFFSET (val) = VALUE_POINTED_TO_OFFSET (fromval);
+      return val;
+
+    case lval_internalvar_component:
+      set_internalvar_component (VALUE_INTERNALVAR (toval),
+				 VALUE_OFFSET (toval),
+				 VALUE_BITPOS (toval),
+				 VALUE_BITSIZE (toval),
+				 fromval);
+      break;
+
+    case lval_memory:
+      {
+	char *dest_buffer;
+        CORE_ADDR changed_addr;
+        int changed_len;
+
+        if (VALUE_BITSIZE (toval))
+          {
+	    char buffer[sizeof (LONGEST)];
+	    /* We assume that the argument to read_memory is in units of
+	       host chars.  FIXME:  Is that correct?  */
+	    changed_len = (VALUE_BITPOS (toval)
+		     + VALUE_BITSIZE (toval)
+		     + HOST_CHAR_BIT - 1)
+		    / HOST_CHAR_BIT;
+
+	    if (changed_len > (int) sizeof (LONGEST))
+	      error ("Can't handle bitfields which don't fit in a %d bit word.",
+		     sizeof (LONGEST) * HOST_CHAR_BIT);
+
+	    read_memory (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
+			 buffer, changed_len);
+	    modify_field (buffer, value_as_long (fromval),
+			  VALUE_BITPOS (toval), VALUE_BITSIZE (toval));
+	    changed_addr = VALUE_ADDRESS (toval) + VALUE_OFFSET (toval);
+	    dest_buffer = buffer;
+	  }
+	else if (use_buffer)
+	  {
+	    changed_addr = VALUE_ADDRESS (toval) + VALUE_OFFSET (toval);
+	    changed_len = use_buffer;
+	    dest_buffer = raw_buffer;
+	  }
+	else
+	  {
+	    changed_addr = VALUE_ADDRESS (toval) + VALUE_OFFSET (toval);
+	    changed_len = TYPE_LENGTH (type);
+	    dest_buffer = VALUE_CONTENTS (fromval);
+	  }
+
+	write_memory (changed_addr, dest_buffer, changed_len);
+	if (memory_changed_hook)
+	  memory_changed_hook (changed_addr, changed_len);
+      }
+      break;
+
+    case lval_register:
+      if (VALUE_BITSIZE (toval))
+	{
+	  char buffer[sizeof (LONGEST)];
+          int len = REGISTER_RAW_SIZE (VALUE_REGNO (toval));
+
+	  if (len > (int) sizeof (LONGEST))
+	    error ("Can't handle bitfields in registers larger than %d bits.",
+		   sizeof (LONGEST) * HOST_CHAR_BIT);
+
+	  if (VALUE_BITPOS (toval) + VALUE_BITSIZE (toval)
+	      > len * HOST_CHAR_BIT)
+	    /* Getting this right would involve being very careful about
+	       byte order.  */
+	    error ("\
+Can't handle bitfield which doesn't fit in a single register.");
+
+          read_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
+                               buffer, len);
+          modify_field (buffer, value_as_long (fromval),
+                        VALUE_BITPOS (toval), VALUE_BITSIZE (toval));
+          write_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
+                                buffer, len);
+	}
+      else if (use_buffer)
+	write_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
+			      raw_buffer, use_buffer);
+      else
+        {
+	  /* Do any conversion necessary when storing this type to more
+	     than one register.  */
+#ifdef REGISTER_CONVERT_FROM_TYPE
+	  memcpy (raw_buffer, VALUE_CONTENTS (fromval), TYPE_LENGTH (type));
+	  REGISTER_CONVERT_FROM_TYPE(VALUE_REGNO (toval), type, raw_buffer);
+	  write_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
+				raw_buffer, TYPE_LENGTH (type));
+#else
+	  write_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
+			        VALUE_CONTENTS (fromval), TYPE_LENGTH (type));
+#endif
+	}
+      /* Assigning to the stack pointer, frame pointer, and other
+	 (architecture and calling convention specific) registers may
+	 cause the frame cache to be out of date.  We just do this
+	 on all assignments to registers for simplicity; I doubt the slowdown
+	 matters.  */
+      reinit_frame_cache ();
+      break;
+
+    case lval_reg_frame_relative:
+      {
+	/* value is stored in a series of registers in the frame
+	   specified by the structure.  Copy that value out, modify
+	   it, and copy it back in.  */
+	int amount_to_copy = (VALUE_BITSIZE (toval) ? 1 : TYPE_LENGTH (type));
+	int reg_size = REGISTER_RAW_SIZE (VALUE_FRAME_REGNUM (toval));
+	int byte_offset = VALUE_OFFSET (toval) % reg_size;
+	int reg_offset = VALUE_OFFSET (toval) / reg_size;
+	int amount_copied;
+
+	/* Make the buffer large enough in all cases.  */
+	char *buffer = (char *) alloca (amount_to_copy
+					+ sizeof (LONGEST)
+					+ MAX_REGISTER_RAW_SIZE);
+
+	int regno;
+	struct frame_info *frame;
+
+	/* Figure out which frame this is in currently.  */
+	for (frame = get_current_frame ();
+	     frame && FRAME_FP (frame) != VALUE_FRAME (toval);
+	     frame = get_prev_frame (frame))
+	  ;
+
+	if (!frame)
+	  error ("Value being assigned to is no longer active.");
+
+	amount_to_copy += (reg_size - amount_to_copy % reg_size);
+
+	/* Copy it out.  */
+	for ((regno = VALUE_FRAME_REGNUM (toval) + reg_offset,
+	      amount_copied = 0);
+	     amount_copied < amount_to_copy;
+	     amount_copied += reg_size, regno++)
+	  {
+	    get_saved_register (buffer + amount_copied,
+				(int *)NULL, (CORE_ADDR *)NULL,
+				frame, regno, (enum lval_type *)NULL);
+	  }
+
+	/* Modify what needs to be modified.  */
+	if (VALUE_BITSIZE (toval))
+	  modify_field (buffer + byte_offset,
+			value_as_long (fromval),
+			VALUE_BITPOS (toval), VALUE_BITSIZE (toval));
+	else if (use_buffer)
+	  memcpy (buffer + byte_offset, raw_buffer, use_buffer);
+	else
+	  memcpy (buffer + byte_offset, VALUE_CONTENTS (fromval),
+		  TYPE_LENGTH (type));
+
+	/* Copy it back.  */
+	for ((regno = VALUE_FRAME_REGNUM (toval) + reg_offset,
+	      amount_copied = 0);
+	     amount_copied < amount_to_copy;
+	     amount_copied += reg_size, regno++)
+	  {
+	    enum lval_type lval;
+	    CORE_ADDR addr;
+	    int optim;
+
+	    /* Just find out where to put it.  */
+	    get_saved_register ((char *)NULL,
+			        &optim, &addr, frame, regno, &lval);
+	    
+	    if (optim)
+	      error ("Attempt to assign to a value that was optimized out.");
+	    if (lval == lval_memory)
+	      write_memory (addr, buffer + amount_copied, reg_size);
+	    else if (lval == lval_register)
+	      write_register_bytes (addr, buffer + amount_copied, reg_size);
+	    else
+	      error ("Attempt to assign to an unmodifiable value.");
+	  }
+
+	if (register_changed_hook)
+	  register_changed_hook (-1);
+      }
+      break;
+	
+
+    default:
+      error ("Left operand of assignment is not an lvalue.");
+    }
+
+  /* If the field does not entirely fill a LONGEST, then zero the sign bits.
+     If the field is signed, and is negative, then sign extend. */
+  if ((VALUE_BITSIZE (toval) > 0)
+      && (VALUE_BITSIZE (toval) < 8 * (int) sizeof (LONGEST)))
+    {
+      LONGEST fieldval = value_as_long (fromval);
+      LONGEST valmask = (((ULONGEST) 1) << VALUE_BITSIZE (toval)) - 1;
+
+      fieldval &= valmask;
+      if (!TYPE_UNSIGNED (type) && (fieldval & (valmask ^ (valmask >> 1))))
+	fieldval |= ~valmask;
+
+      fromval = value_from_longest (type, fieldval);
+    }
+
+  val = value_copy (toval);
+  memcpy (VALUE_CONTENTS_RAW (val), VALUE_CONTENTS (fromval),
+	  TYPE_LENGTH (type));
+  VALUE_TYPE (val) = type;
+  VALUE_ENCLOSING_TYPE (val) = VALUE_ENCLOSING_TYPE (fromval);
+  VALUE_EMBEDDED_OFFSET (val) = VALUE_EMBEDDED_OFFSET (fromval);
+  VALUE_POINTED_TO_OFFSET (val) = VALUE_POINTED_TO_OFFSET (fromval);
+  
+  return val;
+}
+
+/* Extend a value VAL to COUNT repetitions of its type.  */
+
+value_ptr
+value_repeat (arg1, count)
+     value_ptr arg1;
+     int count;
+{
+  register value_ptr val;
+
+  if (VALUE_LVAL (arg1) != lval_memory)
+    error ("Only values in memory can be extended with '@'.");
+  if (count < 1)
+    error ("Invalid number %d of repetitions.", count);
+
+  val = allocate_repeat_value (VALUE_ENCLOSING_TYPE (arg1), count);
+
+  read_memory (VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1),
+	       VALUE_CONTENTS_ALL_RAW (val),
+	       TYPE_LENGTH (VALUE_ENCLOSING_TYPE (val)));
+  VALUE_LVAL (val) = lval_memory;
+  VALUE_ADDRESS (val) = VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1);
+
+  return val;
+}
+
+value_ptr
+value_of_variable (var, b)
+     struct symbol *var;
+     struct block *b;
+{
+  value_ptr val;
+  struct frame_info *frame = NULL;
+
+  if (!b)
+    frame = NULL;		/* Use selected frame.  */
+  else if (symbol_read_needs_frame (var))
+    {
+      frame = block_innermost_frame (b);
+      if (!frame)
+        {
+	  if (BLOCK_FUNCTION (b)
+	      && SYMBOL_SOURCE_NAME (BLOCK_FUNCTION (b)))
+	    error ("No frame is currently executing in block %s.",
+		   SYMBOL_SOURCE_NAME (BLOCK_FUNCTION (b)));
+	  else
+	    error ("No frame is currently executing in specified block");
+        }
+    }
+
+  val = read_var_value (var, frame);
+  if (!val)
+    error ("Address of symbol \"%s\" is unknown.", SYMBOL_SOURCE_NAME (var));
+
+  return val;
+}
+
+/* Given a value which is an array, return a value which is a pointer to its
+   first element, regardless of whether or not the array has a nonzero lower
+   bound.
+
+   FIXME:  A previous comment here indicated that this routine should be
+   substracting the array's lower bound.  It's not clear to me that this
+   is correct.  Given an array subscripting operation, it would certainly
+   work to do the adjustment here, essentially computing:
+
+   (&array[0] - (lowerbound * sizeof array[0])) + (index * sizeof array[0])
+
+   However I believe a more appropriate and logical place to account for
+   the lower bound is to do so in value_subscript, essentially computing:
+
+   (&array[0] + ((index - lowerbound) * sizeof array[0]))
+
+   As further evidence consider what would happen with operations other
+   than array subscripting, where the caller would get back a value that
+   had an address somewhere before the actual first element of the array,
+   and the information about the lower bound would be lost because of
+   the coercion to pointer type.
+   */
+
+value_ptr
+value_coerce_array (arg1)
+     value_ptr arg1;
+{
+  register struct type *type = check_typedef (VALUE_TYPE (arg1));
+
+  if (VALUE_LVAL (arg1) != lval_memory)
+    error ("Attempt to take address of value not located in memory.");
+
+  return value_from_longest (lookup_pointer_type (TYPE_TARGET_TYPE (type)),
+		       (LONGEST) (VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1)));
+}
+
+/* Given a value which is a function, return a value which is a pointer
+   to it.  */
+
+value_ptr
+value_coerce_function (arg1)
+     value_ptr arg1;
+{
+  value_ptr retval;
+
+  if (VALUE_LVAL (arg1) != lval_memory)
+    error ("Attempt to take address of value not located in memory.");
+
+  retval = value_from_longest (lookup_pointer_type (VALUE_TYPE (arg1)),
+			       (LONGEST) (VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1)));
+  VALUE_BFD_SECTION (retval) = VALUE_BFD_SECTION (arg1);
+  return retval;
+}  
+
+/* Return a pointer value for the object for which ARG1 is the contents.  */
+
+value_ptr
+value_addr (arg1)
+     value_ptr arg1;
+{
+  value_ptr arg2;
+
+  struct type *type = check_typedef (VALUE_TYPE (arg1));
+  if (TYPE_CODE (type) == TYPE_CODE_REF)
+    {
+      /* Copy the value, but change the type from (T&) to (T*).
+	 We keep the same location information, which is efficient,
+	 and allows &(&X) to get the location containing the reference. */
+      arg2 = value_copy (arg1);
+      VALUE_TYPE (arg2) = lookup_pointer_type (TYPE_TARGET_TYPE (type));
+      return arg2;
+    }
+  if (TYPE_CODE (type) == TYPE_CODE_FUNC)
+    return value_coerce_function (arg1);
+
+  if (VALUE_LVAL (arg1) != lval_memory)
+    error ("Attempt to take address of value not located in memory.");
+
+  /* Get target memory address */  
+  arg2 = value_from_longest (lookup_pointer_type (VALUE_TYPE (arg1)),
+			       (LONGEST) (VALUE_ADDRESS (arg1) 
+					  + VALUE_OFFSET (arg1)
+					  + VALUE_EMBEDDED_OFFSET (arg1)));
+
+  /* This may be a pointer to a base subobject; so remember the
+     full derived object's type ... */ 
+  VALUE_ENCLOSING_TYPE (arg2) = lookup_pointer_type (VALUE_ENCLOSING_TYPE (arg1));
+  /* ... and also the relative position of the subobject in the full object */ 
+  VALUE_POINTED_TO_OFFSET (arg2) = VALUE_EMBEDDED_OFFSET (arg1);  
+  VALUE_BFD_SECTION (arg2) = VALUE_BFD_SECTION (arg1);
+  return arg2;
+}
+
+/* Given a value of a pointer type, apply the C unary * operator to it.  */
+
+value_ptr
+value_ind (arg1)
+     value_ptr arg1;
+{
+  struct type *base_type;
+  value_ptr arg2;
+  value_ptr real_val;
+
+  COERCE_ARRAY (arg1);
+
+  base_type = check_typedef (VALUE_TYPE (arg1));
+
+  if (TYPE_CODE (base_type) == TYPE_CODE_MEMBER)
+    error ("not implemented: member types in value_ind");
+
+  /* Allow * on an integer so we can cast it to whatever we want.
+     This returns an int, which seems like the most C-like thing
+     to do.  "long long" variables are rare enough that
+     BUILTIN_TYPE_LONGEST would seem to be a mistake.  */
+  if (TYPE_CODE (base_type) == TYPE_CODE_INT)
+    return value_at (builtin_type_int,
+		     (CORE_ADDR) value_as_long (arg1),
+		     VALUE_BFD_SECTION (arg1));
+  else if (TYPE_CODE (base_type) == TYPE_CODE_PTR)
+    {
+      struct type *enc_type;
+      /* We may be pointing to something embedded in a larger object */
+      /* Get the real type of the enclosing object */ 
+      enc_type = check_typedef (VALUE_ENCLOSING_TYPE (arg1));
+      enc_type = TYPE_TARGET_TYPE (enc_type);
+      /* Retrieve the enclosing object pointed to */ 
+      arg2 =  value_at_lazy (enc_type, 
+			     value_as_pointer (arg1) - VALUE_POINTED_TO_OFFSET (arg1),
+                             VALUE_BFD_SECTION (arg1));
+      /* Re-adjust type */ 
+      VALUE_TYPE (arg2) = TYPE_TARGET_TYPE (base_type);
+      /* Add embedding info */
+      VALUE_ENCLOSING_TYPE (arg2) = enc_type;
+      VALUE_EMBEDDED_OFFSET (arg2) = VALUE_POINTED_TO_OFFSET (arg1);
+
+      /* We may be pointing to an object of some derived type */
+      arg2 = value_full_object (arg2, NULL, 0, 0, 0);
+      return arg2;
+    }
+
+  error ("Attempt to take contents of a non-pointer value.");
+  return 0;  /* For lint -- never reached */
+}
+
+/* Pushing small parts of stack frames.  */
+
+/* Push one word (the size of object that a register holds).  */
+
+CORE_ADDR
+push_word (sp, word)
+     CORE_ADDR sp;
+     ULONGEST word;
+{
+  register int len = REGISTER_SIZE;
+  char buffer[MAX_REGISTER_RAW_SIZE];
+
+  store_unsigned_integer (buffer, len, word);
+  if (INNER_THAN (1, 2))
+    {
+      /* stack grows downward */
+      sp -= len;
+      write_memory (sp, buffer, len);
+    }
+  else
+    {
+      /* stack grows upward */
+      write_memory (sp, buffer, len);
+      sp += len;
+    }
+
+  return sp;
+}
+
+/* Push LEN bytes with data at BUFFER.  */
+
+CORE_ADDR
+push_bytes (sp, buffer, len)
+     CORE_ADDR sp;
+     char *buffer;
+     int len;
+{
+  if (INNER_THAN (1, 2))
+    {
+      /* stack grows downward */
+      sp -= len;
+      write_memory (sp, buffer, len);
+    }
+  else
+    {
+      /* stack grows upward */
+      write_memory (sp, buffer, len);
+      sp += len;
+    }
+
+  return sp;
+}
+
+/* Push onto the stack the specified value VALUE.  */
+
+#ifndef PUSH_ARGUMENTS
+
+static CORE_ADDR
+value_push (sp, arg)
+     register CORE_ADDR sp;
+     value_ptr arg;
+{
+  register int len = TYPE_LENGTH (VALUE_ENCLOSING_TYPE (arg));
+
+  if (INNER_THAN (1, 2))
+    {
+      /* stack grows downward */
+      sp -= len;
+      write_memory (sp, VALUE_CONTENTS_ALL (arg), len);
+    }
+  else
+    {
+      /* stack grows upward */
+      write_memory (sp, VALUE_CONTENTS_ALL (arg), len);
+      sp += len;
+    }
+
+  return sp;
+}
+
+#endif	/* !PUSH_ARGUMENTS */
+
+#ifdef CALL_DUMMY
+/* Perform the standard coercions that are specified
+   for arguments to be passed to C functions.
+
+   If PARAM_TYPE is non-NULL, it is the expected parameter type.
+   IS_PROTOTYPED is non-zero if the function declaration is prototyped.  */
+
+static value_ptr
+value_arg_coerce (arg, param_type, is_prototyped)
+     value_ptr arg;
+     struct type *param_type;
+     int is_prototyped;
+{
+  register struct type *arg_type = check_typedef (VALUE_TYPE (arg));
+  register struct type *type
+    = param_type ? check_typedef (param_type) : arg_type;
+
+  switch (TYPE_CODE (type))
+    {
+    case TYPE_CODE_REF:
+      if (TYPE_CODE (arg_type) != TYPE_CODE_REF)
+	{
+	  arg = value_addr (arg);
+	  VALUE_TYPE (arg) = param_type;
+	  return arg;
+	}
+      break;
+    case TYPE_CODE_INT:
+    case TYPE_CODE_CHAR:
+    case TYPE_CODE_BOOL:
+    case TYPE_CODE_ENUM:
+      /* If we don't have a prototype, coerce to integer type if necessary.  */
+      if (!is_prototyped)
+	{
+	  if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_int))
+	    type = builtin_type_int;
+	}
+      /* Currently all target ABIs require at least the width of an integer
+	 type for an argument.  We may have to conditionalize the following
+	 type coercion for future targets.  */
+      if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_int))
+	type = builtin_type_int;
+      break;
+    case TYPE_CODE_FLT:
+      /* FIXME: We should always convert floats to doubles in the
+	 non-prototyped case.  As many debugging formats include
+	 no information about prototyping, we have to live with
+	 COERCE_FLOAT_TO_DOUBLE for now.  */
+      if (!is_prototyped && COERCE_FLOAT_TO_DOUBLE)
+	{
+	  if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_double))
+	    type = builtin_type_double;
+	  else if (TYPE_LENGTH (type) > TYPE_LENGTH (builtin_type_double))
+	    type = builtin_type_long_double;
+	}
+      break;
+    case TYPE_CODE_FUNC:
+      type = lookup_pointer_type (type);
+      break;
+    case TYPE_CODE_ARRAY:
+      if (current_language->c_style_arrays)
+	type = lookup_pointer_type (TYPE_TARGET_TYPE (type));
+      break;
+    case TYPE_CODE_UNDEF:
+    case TYPE_CODE_PTR:
+    case TYPE_CODE_STRUCT:
+    case TYPE_CODE_UNION:
+    case TYPE_CODE_VOID:
+    case TYPE_CODE_SET:
+    case TYPE_CODE_RANGE:
+    case TYPE_CODE_STRING:
+    case TYPE_CODE_BITSTRING:
+    case TYPE_CODE_ERROR:
+    case TYPE_CODE_MEMBER:
+    case TYPE_CODE_METHOD:
+    case TYPE_CODE_COMPLEX:
+    default:
+      break;
+    }
+
+  return value_cast (type, arg);
+}
+
+/* Determine a function's address and its return type from its value. 
+   Calls error() if the function is not valid for calling.  */
+
+static CORE_ADDR
+find_function_addr (function, retval_type)
+     value_ptr function;
+     struct type **retval_type;
+{
+  register struct type *ftype = check_typedef (VALUE_TYPE (function));
+  register enum type_code code = TYPE_CODE (ftype);
+  struct type *value_type;
+  CORE_ADDR funaddr;
+
+  /* If it's a member function, just look at the function
+     part of it.  */
+
+  /* Determine address to call.  */
+  if (code == TYPE_CODE_FUNC || code == TYPE_CODE_METHOD)
+    {
+      funaddr = VALUE_ADDRESS (function);
+      value_type = TYPE_TARGET_TYPE (ftype);
+    }
+  else if (code == TYPE_CODE_PTR)
+    {
+      funaddr = value_as_pointer (function);
+      ftype = check_typedef (TYPE_TARGET_TYPE (ftype));
+      if (TYPE_CODE (ftype) == TYPE_CODE_FUNC
+	  || TYPE_CODE (ftype) == TYPE_CODE_METHOD)
+	{
+#ifdef CONVERT_FROM_FUNC_PTR_ADDR
+	  /* FIXME: This is a workaround for the unusual function
+	     pointer representation on the RS/6000, see comment
+	     in config/rs6000/tm-rs6000.h  */
+	  funaddr = CONVERT_FROM_FUNC_PTR_ADDR (funaddr);
+#endif
+	  value_type = TYPE_TARGET_TYPE (ftype);
+	}
+      else
+	value_type = builtin_type_int;
+    }
+  else if (code == TYPE_CODE_INT)
+    {
+      /* Handle the case of functions lacking debugging info.
+	 Their values are characters since their addresses are char */
+      if (TYPE_LENGTH (ftype) == 1)
+	funaddr = value_as_pointer (value_addr (function));
+      else
+	/* Handle integer used as address of a function.  */
+	funaddr = (CORE_ADDR) value_as_long (function);
+
+      value_type = builtin_type_int;
+    }
+  else
+    error ("Invalid data type for function to be called.");
+
+  *retval_type = value_type;
+  return funaddr;
+}
+
+/* All this stuff with a dummy frame may seem unnecessarily complicated
+   (why not just save registers in GDB?).  The purpose of pushing a dummy
+   frame which looks just like a real frame is so that if you call a
+   function and then hit a breakpoint (get a signal, etc), "backtrace"
+   will look right.  Whether the backtrace needs to actually show the
+   stack at the time the inferior function was called is debatable, but
+   it certainly needs to not display garbage.  So if you are contemplating
+   making dummy frames be different from normal frames, consider that.  */
+
+/* Perform a function call in the inferior.
+   ARGS is a vector of values of arguments (NARGS of them).
+   FUNCTION is a value, the function to be called.
+   Returns a value representing what the function returned.
+   May fail to return, if a breakpoint or signal is hit
+   during the execution of the function.
+
+   ARGS is modified to contain coerced values. */
+
+value_ptr
+call_function_by_hand (function, nargs, args)
+     value_ptr function;
+     int nargs;
+     value_ptr *args;
+{
+  register CORE_ADDR sp;
+  register int i;
+  CORE_ADDR start_sp;
+  /* CALL_DUMMY is an array of words (REGISTER_SIZE), but each word
+     is in host byte order.  Before calling FIX_CALL_DUMMY, we byteswap it
+     and remove any extra bytes which might exist because ULONGEST is
+     bigger than REGISTER_SIZE.  
+
+     NOTE: This is pretty wierd, as the call dummy is actually a
+           sequence of instructions.  But CISC machines will have
+           to pack the instructions into REGISTER_SIZE units (and
+           so will RISC machines for which INSTRUCTION_SIZE is not
+           REGISTER_SIZE). */
+
+  static ULONGEST dummy[] = CALL_DUMMY;
+  char dummy1[REGISTER_SIZE * sizeof dummy / sizeof (ULONGEST)];
+  CORE_ADDR old_sp;
+  struct type *value_type;
+  unsigned char struct_return;
+  CORE_ADDR struct_addr = 0;
+  struct inferior_status inf_status;
+  struct cleanup *old_chain;
+  CORE_ADDR funaddr;
+  int using_gcc;	/* Set to version of gcc in use, or zero if not gcc */
+  CORE_ADDR real_pc;
+  struct type *param_type = NULL;
+  struct type *ftype = check_typedef (SYMBOL_TYPE (function));
+
+  if (!target_has_execution)
+    noprocess();
+
+  save_inferior_status (&inf_status, 1);
+  old_chain = make_cleanup ((make_cleanup_func) restore_inferior_status, 
+                            &inf_status);
+
+  /* PUSH_DUMMY_FRAME is responsible for saving the inferior registers
+     (and POP_FRAME for restoring them).  (At least on most machines)
+     they are saved on the stack in the inferior.  */
+  PUSH_DUMMY_FRAME;
+
+  old_sp = sp = read_sp ();
+
+  if (INNER_THAN (1, 2))
+    {
+      /* Stack grows down */
+      sp -= sizeof dummy1;
+      start_sp = sp;
+    }
+  else
+    {
+      /* Stack grows up */
+      start_sp = sp;
+      sp += sizeof dummy1;
+    }
+
+  funaddr = find_function_addr (function, &value_type);
+  CHECK_TYPEDEF (value_type);
+
+  {
+    struct block *b = block_for_pc (funaddr);
+    /* If compiled without -g, assume GCC 2.  */
+    using_gcc = (b == NULL ? 2 : BLOCK_GCC_COMPILED (b));
+  }
+
+  /* Are we returning a value using a structure return or a normal
+     value return? */
+
+  struct_return = using_struct_return (function, funaddr, value_type,
+				       using_gcc);
+
+  /* Create a call sequence customized for this function
+     and the number of arguments for it.  */
+  for (i = 0; i < (int) (sizeof (dummy) / sizeof (dummy[0])); i++)
+    store_unsigned_integer (&dummy1[i * REGISTER_SIZE],
+			    REGISTER_SIZE,
+			    (ULONGEST)dummy[i]);
+
+#ifdef GDB_TARGET_IS_HPPA
+  real_pc = FIX_CALL_DUMMY (dummy1, start_sp, funaddr, nargs, args,
+			    value_type, using_gcc);
+#else
+  FIX_CALL_DUMMY (dummy1, start_sp, funaddr, nargs, args,
+		  value_type, using_gcc);
+  real_pc = start_sp;
+#endif
+
+#if CALL_DUMMY_LOCATION == ON_STACK
+  write_memory (start_sp, (char *)dummy1, sizeof dummy1);
+#endif /* On stack.  */
+
+#if CALL_DUMMY_LOCATION == BEFORE_TEXT_END
+  /* Convex Unix prohibits executing in the stack segment. */
+  /* Hope there is empty room at the top of the text segment. */
+  {
+    extern CORE_ADDR text_end;
+    static checked = 0;
+    if (!checked)
+      for (start_sp = text_end - sizeof dummy1; start_sp < text_end; ++start_sp)
+	if (read_memory_integer (start_sp, 1) != 0)
+	  error ("text segment full -- no place to put call");
+    checked = 1;
+    sp = old_sp;
+    real_pc = text_end - sizeof dummy1;
+    write_memory (real_pc, (char *)dummy1, sizeof dummy1);
+  }
+#endif /* Before text_end.  */
+
+#if CALL_DUMMY_LOCATION == AFTER_TEXT_END
+  {
+    extern CORE_ADDR text_end;
+    int errcode;
+    sp = old_sp;
+    real_pc = text_end;
+    errcode = target_write_memory (real_pc, (char *)dummy1, sizeof dummy1);
+    if (errcode != 0)
+      error ("Cannot write text segment -- call_function failed");
+  }
+#endif /* After text_end.  */
+
+#if CALL_DUMMY_LOCATION == AT_ENTRY_POINT
+  real_pc = funaddr;
+#endif /* At entry point.  */
+
+#ifdef lint
+  sp = old_sp;		/* It really is used, for some ifdef's... */
+#endif
+
+  if (nargs < TYPE_NFIELDS (ftype))
+    error ("too few arguments in function call");
+
+  for (i = nargs - 1; i >= 0; i--)
+    {
+      /* If we're off the end of the known arguments, do the standard
+	 promotions.  FIXME: if we had a prototype, this should only
+	 be allowed if ... were present.  */
+      if (i >= TYPE_NFIELDS (ftype))
+	args[i] = value_arg_coerce (args[i], NULL, 0);
+
+      else 
+	{
+	  int is_prototyped = TYPE_FLAGS (ftype) & TYPE_FLAG_PROTOTYPED;
+	  param_type = TYPE_FIELD_TYPE (ftype, i);
+
+	  args[i] = value_arg_coerce (args[i], param_type, is_prototyped);
+	}
+
+      /*elz: this code is to handle the case in which the function to be called 
+	has a pointer to function as parameter and the corresponding actual argument 
+	is the address of a function and not a pointer to function variable.
+	In aCC compiled code, the calls through pointers to functions (in the body
+	of the function called by hand) are made via $$dyncall_external which
+	requires some registers setting, this is taken care of if we call 
+	via a function pointer variable, but not via a function address. 
+	In cc this is not a problem. */
+
+      if (using_gcc == 0)
+	if (param_type)
+	  /* if this parameter is a pointer to function*/
+	  if (TYPE_CODE (param_type) == TYPE_CODE_PTR)
+	    if (TYPE_CODE (param_type->target_type) == TYPE_CODE_FUNC)
+	      /* elz: FIXME here should go the test about the compiler used 
+                    to compile the target. We want to issue the error
+                    message only if the compiler used was HP's aCC. 
+                    If we used HP's cc, then there is no problem and no need 
+                    to return at this point */
+	      if (using_gcc == 0) /* && compiler == aCC*/
+		/* go see if the actual parameter is a variable of type
+                pointer to function or just a function */
+		if (args[i]->lval == not_lval)
+		  {
+		    char *arg_name;
+		    if (find_pc_partial_function((CORE_ADDR)args[i]->aligner.contents[0], &arg_name, NULL, NULL))
+		      error("\
+You cannot use function <%s> as argument. \n\
+You must use a pointer to function type variable. Command ignored.", arg_name);
+		  }   
+    }
+
+#if defined (REG_STRUCT_HAS_ADDR)
+  {
+    /* This is a machine like the sparc, where we may need to pass a pointer
+       to the structure, not the structure itself.  */
+    for (i = nargs - 1; i >= 0; i--)
+      {
+	struct type *arg_type = check_typedef (VALUE_TYPE (args[i]));
+	if ((TYPE_CODE (arg_type) == TYPE_CODE_STRUCT
+	     || TYPE_CODE (arg_type) == TYPE_CODE_UNION
+	     || TYPE_CODE (arg_type) == TYPE_CODE_ARRAY
+	     || TYPE_CODE (arg_type) == TYPE_CODE_STRING
+	     || TYPE_CODE (arg_type) == TYPE_CODE_BITSTRING
+	     || TYPE_CODE (arg_type) == TYPE_CODE_SET
+	     || (TYPE_CODE (arg_type) == TYPE_CODE_FLT
+		 && TYPE_LENGTH (arg_type) > 8)
+	     )
+	  && REG_STRUCT_HAS_ADDR (using_gcc, arg_type))
+	  {
+	    CORE_ADDR addr;
+	    int len; /*  = TYPE_LENGTH (arg_type); */ 
+            int aligned_len;
+            arg_type = check_typedef (VALUE_ENCLOSING_TYPE (args[i])); 
+            len = TYPE_LENGTH (arg_type);
+
+#ifdef STACK_ALIGN
+  /* MVS 11/22/96: I think at least some of this stack_align code is
+     really broken.  Better to let PUSH_ARGUMENTS adjust the stack in
+     a target-defined manner.  */
+	    aligned_len = STACK_ALIGN (len);
+#else
+	    aligned_len = len;
+#endif
+	    if (INNER_THAN (1, 2))
+	      {
+		/* stack grows downward */
+		sp -= aligned_len;
+	      }
+	    else
+	      {
+		/* The stack grows up, so the address of the thing we push
+		   is the stack pointer before we push it.  */
+		addr = sp;
+	      }
+	    /* Push the structure.  */
+	    write_memory (sp, VALUE_CONTENTS_ALL (args[i]), len);
+	    if (INNER_THAN (1, 2))
+	      {
+		/* The stack grows down, so the address of the thing we push
+		   is the stack pointer after we push it.  */
+		addr = sp;
+	      }
+	    else
+	      {
+		/* stack grows upward */
+		sp += aligned_len;
+	      }
+	    /* The value we're going to pass is the address of the thing
+	       we just pushed.  */
+	    /*args[i] = value_from_longest (lookup_pointer_type (value_type),
+					  (LONGEST) addr);*/
+	    args[i] = value_from_longest (lookup_pointer_type (arg_type), 
+					  (LONGEST) addr);
+	  }
+      }
+  }
+#endif /* REG_STRUCT_HAS_ADDR.  */
+
+  /* Reserve space for the return structure to be written on the
+     stack, if necessary */
+
+  if (struct_return)
+    {
+      int len = TYPE_LENGTH (value_type);
+#ifdef STACK_ALIGN
+  /* MVS 11/22/96: I think at least some of this stack_align code is
+     really broken.  Better to let PUSH_ARGUMENTS adjust the stack in
+     a target-defined manner.  */
+      len = STACK_ALIGN (len);
+#endif
+      if (INNER_THAN (1, 2))
+	{
+	  /* stack grows downward */
+	  sp -= len;
+	  struct_addr = sp;
+	}
+      else
+	{
+	  /* stack grows upward */
+	  struct_addr = sp;
+	  sp += len;
+	}
+    }
+
+/* elz: on HPPA no need for this extra alignment, maybe it is needed
+   on other architectures. This is because all the alignment is taken care
+   of in the above code (ifdef REG_STRUCT_HAS_ADDR) and in 
+   hppa_push_arguments*/
+#ifndef NO_EXTRA_ALIGNMENT_NEEDED
+
+#if defined(STACK_ALIGN)
+  /* MVS 11/22/96: I think at least some of this stack_align code is
+     really broken.  Better to let PUSH_ARGUMENTS adjust the stack in
+     a target-defined manner.  */
+  if (INNER_THAN (1, 2))
+    {
+      /* If stack grows down, we must leave a hole at the top. */
+      int len = 0;
+
+      for (i = nargs - 1; i >= 0; i--)
+	len += TYPE_LENGTH (VALUE_ENCLOSING_TYPE (args[i]));
+#ifdef CALL_DUMMY_STACK_ADJUST
+      len += CALL_DUMMY_STACK_ADJUST;
+#endif
+      sp -= STACK_ALIGN (len) - len;
+    }
+#endif /* STACK_ALIGN */
+#endif /* NO_EXTRA_ALIGNMENT_NEEDED */
+
+#ifdef PUSH_ARGUMENTS
+  PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr);
+#else /* !PUSH_ARGUMENTS */
+  for (i = nargs - 1; i >= 0; i--)
+    sp = value_push (sp, args[i]);
+#endif /* !PUSH_ARGUMENTS */
+
+#ifdef PUSH_RETURN_ADDRESS	/* for targets that use no CALL_DUMMY */
+  /* There are a number of targets now which actually don't write any
+     CALL_DUMMY instructions into the target, but instead just save the
+     machine state, push the arguments, and jump directly to the callee
+     function.  Since this doesn't actually involve executing a JSR/BSR
+     instruction, the return address must be set up by hand, either by
+     pushing onto the stack or copying into a return-address register
+     as appropriate.  Formerly this has been done in PUSH_ARGUMENTS, 
+     but that's overloading its functionality a bit, so I'm making it
+     explicit to do it here.  */
+  sp = PUSH_RETURN_ADDRESS(real_pc, sp);
+#endif	/* PUSH_RETURN_ADDRESS */
+
+#if defined(STACK_ALIGN)
+  if (! INNER_THAN (1, 2))
+    {
+      /* If stack grows up, we must leave a hole at the bottom, note
+	 that sp already has been advanced for the arguments!  */
+#ifdef CALL_DUMMY_STACK_ADJUST
+      sp += CALL_DUMMY_STACK_ADJUST;
+#endif
+      sp = STACK_ALIGN (sp);
+    }
+#endif /* STACK_ALIGN */
+
+/* XXX This seems wrong.  For stacks that grow down we shouldn't do
+   anything here!  */
+  /* MVS 11/22/96: I think at least some of this stack_align code is
+     really broken.  Better to let PUSH_ARGUMENTS adjust the stack in
+     a target-defined manner.  */
+#ifdef CALL_DUMMY_STACK_ADJUST
+  if (INNER_THAN (1, 2))
+    {
+      /* stack grows downward */
+      sp -= CALL_DUMMY_STACK_ADJUST;
+    }
+#endif /* CALL_DUMMY_STACK_ADJUST */
+
+  /* Store the address at which the structure is supposed to be
+     written.  Note that this (and the code which reserved the space
+     above) assumes that gcc was used to compile this function.  Since
+     it doesn't cost us anything but space and if the function is pcc
+     it will ignore this value, we will make that assumption.
+
+     Also note that on some machines (like the sparc) pcc uses a 
+     convention like gcc's.  */
+
+  if (struct_return)
+    STORE_STRUCT_RETURN (struct_addr, sp);
+
+  /* Write the stack pointer.  This is here because the statements above
+     might fool with it.  On SPARC, this write also stores the register
+     window into the right place in the new stack frame, which otherwise
+     wouldn't happen.  (See store_inferior_registers in sparc-nat.c.)  */
+  write_sp (sp);
+
+  {
+    char retbuf[REGISTER_BYTES];
+    char *name;
+    struct symbol *symbol;
+
+    name = NULL;
+    symbol = find_pc_function (funaddr);
+    if (symbol)
+      {
+	name = SYMBOL_SOURCE_NAME (symbol);
+      }
+    else
+      {
+	/* Try the minimal symbols.  */
+	struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (funaddr);
+
+	if (msymbol)
+	  {
+	    name = SYMBOL_SOURCE_NAME (msymbol);
+	  }
+      }
+    if (name == NULL)
+      {
+	char format[80];
+	sprintf (format, "at %s", local_hex_format ());
+	name = alloca (80);
+	/* FIXME-32x64: assumes funaddr fits in a long.  */
+	sprintf (name, format, (unsigned long) funaddr);
+      }
+
+    /* Execute the stack dummy routine, calling FUNCTION.
+       When it is done, discard the empty frame
+       after storing the contents of all regs into retbuf.  */
+    if (run_stack_dummy (real_pc + CALL_DUMMY_START_OFFSET, retbuf))
+      {
+	/* We stopped somewhere besides the call dummy.  */
+
+	/* If we did the cleanups, we would print a spurious error message
+	   (Unable to restore previously selected frame), would write the
+	   registers from the inf_status (which is wrong), and would do other
+	   wrong things (like set stop_bpstat to the wrong thing).  */
+	discard_cleanups (old_chain);
+	/* Prevent memory leak.  */
+	bpstat_clear (&inf_status.stop_bpstat);
+
+	/* The following error message used to say "The expression
+	   which contained the function call has been discarded."  It
+	   is a hard concept to explain in a few words.  Ideally, GDB
+	   would be able to resume evaluation of the expression when
+	   the function finally is done executing.  Perhaps someday
+	   this will be implemented (it would not be easy).  */
+
+	/* FIXME: Insert a bunch of wrap_here; name can be very long if it's
+	   a C++ name with arguments and stuff.  */
+	error ("\
+The program being debugged stopped while in a function called from GDB.\n\
+When the function (%s) is done executing, GDB will silently\n\
+stop (instead of continuing to evaluate the expression containing\n\
+the function call).", name);
+      }
+
+    do_cleanups (old_chain);
+
+    /* Figure out the value returned by the function.  */
+/* elz: I defined this new macro for the hppa architecture only.
+   this gives us a way to get the value returned by the function from the stack,
+   at the same address we told the function to put it.
+   We cannot assume on the pa that r28 still contains the address of the returned
+   structure. Usually this will be overwritten by the callee.
+   I don't know about other architectures, so I defined this macro
+*/
+
+#ifdef VALUE_RETURNED_FROM_STACK
+    if (struct_return)
+      return (value_ptr) VALUE_RETURNED_FROM_STACK (value_type, struct_addr);
+#endif
+
+    return value_being_returned (value_type, retbuf, struct_return);
+  }
+}
+#else /* no CALL_DUMMY.  */
+value_ptr
+call_function_by_hand (function, nargs, args)
+     value_ptr function;
+     int nargs;
+     value_ptr *args;
+{
+  error ("Cannot invoke functions on this machine.");
+}
+#endif /* no CALL_DUMMY.  */
+
+
+/* Create a value for an array by allocating space in the inferior, copying
+   the data into that space, and then setting up an array value.
+
+   The array bounds are set from LOWBOUND and HIGHBOUND, and the array is
+   populated from the values passed in ELEMVEC.
+
+   The element type of the array is inherited from the type of the
+   first element, and all elements must have the same size (though we
+   don't currently enforce any restriction on their types). */
+
+value_ptr
+value_array (lowbound, highbound, elemvec)
+     int lowbound;
+     int highbound;
+     value_ptr *elemvec;
+{
+  int nelem;
+  int idx;
+  unsigned int typelength;
+  value_ptr val;
+  struct type *rangetype;
+  struct type *arraytype;
+  CORE_ADDR addr;
+
+  /* Validate that the bounds are reasonable and that each of the elements
+     have the same size. */
+
+  nelem = highbound - lowbound + 1;
+  if (nelem <= 0)
+    {
+      error ("bad array bounds (%d, %d)", lowbound, highbound);
+    }
+  typelength = TYPE_LENGTH (VALUE_ENCLOSING_TYPE (elemvec[0]));
+  for (idx = 1; idx < nelem; idx++)
+    {
+      if (TYPE_LENGTH (VALUE_ENCLOSING_TYPE (elemvec[idx])) != typelength)
+	{
+	  error ("array elements must all be the same size");
+	}
+    }
+
+  rangetype = create_range_type ((struct type *) NULL, builtin_type_int,
+				 lowbound, highbound);
+  arraytype = create_array_type ((struct type *) NULL, 
+				 VALUE_ENCLOSING_TYPE (elemvec[0]), rangetype);
+
+  if (!current_language->c_style_arrays)
+    {
+      val = allocate_value (arraytype);
+      for (idx = 0; idx < nelem; idx++)
+	{
+	  memcpy (VALUE_CONTENTS_ALL_RAW (val) + (idx * typelength),
+		  VALUE_CONTENTS_ALL (elemvec[idx]),
+		  typelength);
+	}
+      VALUE_BFD_SECTION (val) = VALUE_BFD_SECTION (elemvec[0]);
+      return val;
+    }
+
+  /* Allocate space to store the array in the inferior, and then initialize
+     it by copying in each element.  FIXME:  Is it worth it to create a
+     local buffer in which to collect each value and then write all the
+     bytes in one operation? */
+
+  addr = allocate_space_in_inferior (nelem * typelength);
+  for (idx = 0; idx < nelem; idx++)
+    {
+      write_memory (addr + (idx * typelength), VALUE_CONTENTS_ALL (elemvec[idx]),
+		    typelength);
+    }
+
+  /* Create the array type and set up an array value to be evaluated lazily. */
+
+  val = value_at_lazy (arraytype, addr, VALUE_BFD_SECTION (elemvec[0]));
+  return (val);
+}
+
+/* Create a value for a string constant by allocating space in the inferior,
+   copying the data into that space, and returning the address with type
+   TYPE_CODE_STRING.  PTR points to the string constant data; LEN is number
+   of characters.
+   Note that string types are like array of char types with a lower bound of
+   zero and an upper bound of LEN - 1.  Also note that the string may contain
+   embedded null bytes. */
+
+value_ptr
+value_string (ptr, len)
+     char *ptr;
+     int len;
+{
+  value_ptr val;
+  int lowbound = current_language->string_lower_bound;
+  struct type *rangetype = create_range_type ((struct type *) NULL,
+					      builtin_type_int,
+					      lowbound, len + lowbound - 1);
+  struct type *stringtype
+    = create_string_type ((struct type *) NULL, rangetype);
+  CORE_ADDR addr;
+
+  if (current_language->c_style_arrays == 0)
+    {
+      val = allocate_value (stringtype);
+      memcpy (VALUE_CONTENTS_RAW (val), ptr, len);
+      return val;
+    }
+
+
+  /* Allocate space to store the string in the inferior, and then
+     copy LEN bytes from PTR in gdb to that address in the inferior. */
+
+  addr = allocate_space_in_inferior (len);
+  write_memory (addr, ptr, len);
+
+  val = value_at_lazy (stringtype, addr, NULL);
+  return (val);
+}
+
+value_ptr
+value_bitstring (ptr, len)
+     char *ptr;
+     int len;
+{
+  value_ptr val;
+  struct type *domain_type = create_range_type (NULL, builtin_type_int,
+						0, len - 1);
+  struct type *type = create_set_type ((struct type*) NULL, domain_type);
+  TYPE_CODE (type) = TYPE_CODE_BITSTRING;
+  val = allocate_value (type);
+  memcpy (VALUE_CONTENTS_RAW (val), ptr, TYPE_LENGTH (type));
+  return val;
+}
+
+/* See if we can pass arguments in T2 to a function which takes arguments
+   of types T1.  Both t1 and t2 are NULL-terminated vectors.  If some
+   arguments need coercion of some sort, then the coerced values are written
+   into T2.  Return value is 0 if the arguments could be matched, or the
+   position at which they differ if not.
+
+   STATICP is nonzero if the T1 argument list came from a
+   static member function.
+
+   For non-static member functions, we ignore the first argument,
+   which is the type of the instance variable.  This is because we want
+   to handle calls with objects from derived classes.  This is not
+   entirely correct: we should actually check to make sure that a
+   requested operation is type secure, shouldn't we?  FIXME.  */
+
+static int
+typecmp (staticp, t1, t2)
+     int staticp;
+     struct type *t1[];
+     value_ptr t2[];
+{
+  int i;
+
+  if (t2 == 0)
+    return 1;
+  if (staticp && t1 == 0)
+    return t2[1] != 0;
+  if (t1 == 0)
+    return 1;
+  if (TYPE_CODE (t1[0]) == TYPE_CODE_VOID) return 0;
+  if (t1[!staticp] == 0) return 0;
+  for (i = !staticp; t1[i] && TYPE_CODE (t1[i]) != TYPE_CODE_VOID; i++)
+    {
+    struct type *tt1, *tt2;
+      if (! t2[i])
+	return i+1;
+      tt1 = check_typedef (t1[i]);
+      tt2 = check_typedef (VALUE_TYPE(t2[i]));
+      if (TYPE_CODE (tt1) == TYPE_CODE_REF
+	  /* We should be doing hairy argument matching, as below.  */
+	  && (TYPE_CODE (check_typedef (TYPE_TARGET_TYPE (tt1))) == TYPE_CODE (tt2)))
+	{
+	  if (TYPE_CODE (tt2) == TYPE_CODE_ARRAY)
+	    t2[i] = value_coerce_array (t2[i]);
+	  else
+	    t2[i] = value_addr (t2[i]);
+	  continue;
+	}
+
+      while (TYPE_CODE (tt1) == TYPE_CODE_PTR
+	  && (   TYPE_CODE (tt2) == TYPE_CODE_ARRAY
+	      || TYPE_CODE (tt2) == TYPE_CODE_PTR))
+	{
+	   tt1 = check_typedef (TYPE_TARGET_TYPE(tt1)); 
+	   tt2 = check_typedef (TYPE_TARGET_TYPE(tt2));
+	}
+      if (TYPE_CODE(tt1) == TYPE_CODE(tt2)) continue;
+      /* Array to pointer is a `trivial conversion' according to the ARM.  */
+
+      /* We should be doing much hairier argument matching (see section 13.2
+	 of the ARM), but as a quick kludge, just check for the same type
+	 code.  */
+      if (TYPE_CODE (t1[i]) != TYPE_CODE (VALUE_TYPE (t2[i])))
+	return i+1;
+    }
+  if (!t1[i]) return 0;
+  return t2[i] ? i+1 : 0;
+}
+
+/* Helper function used by value_struct_elt to recurse through baseclasses.
+   Look for a field NAME in ARG1. Adjust the address of ARG1 by OFFSET bytes,
+   and search in it assuming it has (class) type TYPE.
+   If found, return value, else return NULL.
+
+   If LOOKING_FOR_BASECLASS, then instead of looking for struct fields,
+   look for a baseclass named NAME.  */
+
+static value_ptr
+search_struct_field (name, arg1, offset, type, looking_for_baseclass)
+     char *name;
+     register value_ptr arg1;
+     int offset;
+     register struct type *type;
+     int looking_for_baseclass;
+{
+  int i;
+  int nbases = TYPE_N_BASECLASSES (type);
+
+  CHECK_TYPEDEF (type);
+
+  if (! looking_for_baseclass)
+    for (i = TYPE_NFIELDS (type) - 1; i >= nbases; i--)
+      {
+	char *t_field_name = TYPE_FIELD_NAME (type, i);
+
+	if (t_field_name && STREQ (t_field_name, name))
+	  {
+	    value_ptr v;
+	    if (TYPE_FIELD_STATIC (type, i))
+	      v = value_static_field (type, i);
+	    else
+	      v = value_primitive_field (arg1, offset, i, type);
+	    if (v == 0)
+	      error("there is no field named %s", name);
+	    return v;
+	  }
+
+	if (t_field_name
+	    && (t_field_name[0] == '\0'
+		|| (TYPE_CODE (type) == TYPE_CODE_UNION
+		    && STREQ (t_field_name, "else"))))
+	  {
+	    struct type *field_type = TYPE_FIELD_TYPE (type, i);
+	    if (TYPE_CODE (field_type) == TYPE_CODE_UNION
+		|| TYPE_CODE (field_type) == TYPE_CODE_STRUCT)
+	      {
+		/* Look for a match through the fields of an anonymous union,
+		   or anonymous struct.  C++ provides anonymous unions.
+
+		   In the GNU Chill implementation of variant record types,
+		   each <alternative field> has an (anonymous) union type,
+		   each member of the union represents a <variant alternative>.
+		   Each <variant alternative> is represented as a struct,
+		   with a member for each <variant field>.  */
+		   
+		value_ptr v;
+		int new_offset = offset;
+
+		/* This is pretty gross.  In G++, the offset in an anonymous
+		   union is relative to the beginning of the enclosing struct.
+		   In the GNU Chill implementation of variant records,
+		   the bitpos is zero in an anonymous union field, so we
+		   have to add the offset of the union here. */
+		if (TYPE_CODE (field_type) == TYPE_CODE_STRUCT
+		    || (TYPE_NFIELDS (field_type) > 0
+			&& TYPE_FIELD_BITPOS (field_type, 0) == 0))
+		  new_offset += TYPE_FIELD_BITPOS (type, i) / 8;
+
+		v = search_struct_field (name, arg1, new_offset, field_type,
+					 looking_for_baseclass);
+		if (v)
+		  return v;
+	      }
+	  }
+      }
+
+  for (i = 0;  i < nbases;  i++)
+    {
+      value_ptr v;
+      struct type *basetype = check_typedef (TYPE_BASECLASS (type, i));
+      /* If we are looking for baseclasses, this is what we get when we
+	 hit them.  But it could happen that the base part's member name
+	 is not yet filled in.  */
+      int found_baseclass = (looking_for_baseclass
+			     && TYPE_BASECLASS_NAME (type, i) != NULL
+			     && STREQ (name, TYPE_BASECLASS_NAME (type, i)));
+
+      if (BASETYPE_VIA_VIRTUAL (type, i))
+	{
+	  int boffset;
+	  value_ptr v2 = allocate_value (basetype);
+
+	  boffset = baseclass_offset (type, i,
+				      VALUE_CONTENTS (arg1) + offset,
+				      VALUE_ADDRESS (arg1)
+					+ VALUE_OFFSET (arg1) + offset);
+	  if (boffset == -1)
+	    error ("virtual baseclass botch");
+
+	  /* The virtual base class pointer might have been clobbered by the
+	     user program. Make sure that it still points to a valid memory
+	     location.  */
+
+	  boffset += offset;
+	  if (boffset < 0 || boffset >= TYPE_LENGTH (type))
+	    {
+	      CORE_ADDR base_addr;
+	
+	      base_addr = VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1) + boffset;
+	      if (target_read_memory (base_addr, VALUE_CONTENTS_RAW (v2),
+				      TYPE_LENGTH (basetype)) != 0)
+		error ("virtual baseclass botch");
+	      VALUE_LVAL (v2) = lval_memory;
+	      VALUE_ADDRESS (v2) = base_addr;
+	    }
+	  else
+	    {
+	      VALUE_LVAL (v2) = VALUE_LVAL (arg1);
+	      VALUE_ADDRESS (v2) = VALUE_ADDRESS (arg1);
+	      VALUE_OFFSET (v2) = VALUE_OFFSET (arg1) + boffset;
+	      if (VALUE_LAZY (arg1))
+		VALUE_LAZY (v2) = 1;
+	      else
+		memcpy (VALUE_CONTENTS_RAW (v2),
+			VALUE_CONTENTS_RAW (arg1) + boffset,
+			TYPE_LENGTH (basetype));
+	    }
+
+	  if (found_baseclass)
+	    return v2;
+	  v = search_struct_field (name, v2, 0, TYPE_BASECLASS (type, i),
+				   looking_for_baseclass);
+	}
+      else if (found_baseclass)
+	v = value_primitive_field (arg1, offset, i, type);
+      else
+	v = search_struct_field (name, arg1,
+				 offset + TYPE_BASECLASS_BITPOS (type, i) / 8,
+				 basetype, looking_for_baseclass);
+      if (v) return v;
+    }
+  return NULL;
+}
+
+
+/* Return the offset (in bytes) of the virtual base of type BASETYPE
+ * in an object pointed to by VALADDR (on the host), assumed to be of
+ * type TYPE.  OFFSET is number of bytes beyond start of ARG to start
+ * looking (in case VALADDR is the contents of an enclosing object).
+ *
+ * This routine recurses on the primary base of the derived class because
+ * the virtual base entries of the primary base appear before the other
+ * virtual base entries.
+ *
+ * If the virtual base is not found, a negative integer is returned.
+ * The magnitude of the negative integer is the number of entries in
+ * the virtual table to skip over (entries corresponding to various
+ * ancestral classes in the chain of primary bases).
+ *
+ * Important: This assumes the HP / Taligent C++ runtime
+ * conventions. Use baseclass_offset() instead to deal with g++
+ * conventions.  */
+
+void
+find_rt_vbase_offset(type, basetype, valaddr, offset, boffset_p, skip_p)
+  struct type * type;
+  struct type * basetype;
+  char * valaddr;
+  int offset;
+  int * boffset_p;
+  int * skip_p;
+{
+  int boffset;           /* offset of virtual base */
+  int index;             /* displacement to use in virtual table */
+  int skip;
+  
+  value_ptr vp;      
+  CORE_ADDR vtbl;      /* the virtual table pointer */
+  struct type * pbc;   /* the primary base class */
+
+  /* Look for the virtual base recursively in the primary base, first.
+   * This is because the derived class object and its primary base
+   * subobject share the primary virtual table.  */
+  
+  boffset = 0;
+  pbc = TYPE_PRIMARY_BASE(type);
+  if (pbc)
+    {
+      find_rt_vbase_offset (pbc, basetype, valaddr, offset, &boffset, &skip);
+      if (skip < 0)
+        {
+          *boffset_p = boffset;
+          *skip_p = -1;
+          return;
+        }
+    }
+  else
+    skip = 0;
+
+
+  /* Find the index of the virtual base according to HP/Taligent
+     runtime spec. (Depth-first, left-to-right.)  */
+  index = virtual_base_index_skip_primaries (basetype, type);
+
+  if (index < 0) {
+    *skip_p = skip + virtual_base_list_length_skip_primaries (type);
+    *boffset_p = 0;
+    return;
+  }
+
+  /* pai: FIXME -- 32x64 possible problem */ 
+  /* First word (4 bytes) in object layout is the vtable pointer */
+  vtbl = * (CORE_ADDR *) (valaddr + offset);
+
+  /* Before the constructor is invoked, things are usually zero'd out. */ 
+  if (vtbl == 0)
+    error ("Couldn't find virtual table -- object may not be constructed yet.");
+
+
+  /* Find virtual base's offset -- jump over entries for primary base
+   * ancestors, then use the index computed above.  But also adjust by
+   * HP_ACC_VBASE_START for the vtable slots before the start of the
+   * virtual base entries.  Offset is negative -- virtual base entries
+   * appear _before_ the address point of the virtual table. */
+  
+  /* pai: FIXME -- 32x64 problem, if word = 8 bytes, change multiplier 
+     & use long type */ 
+
+  /* epstein : FIXME -- added param for overlay section. May not be correct */
+   vp = value_at (builtin_type_int, vtbl + 4 * (- skip - index - HP_ACC_VBASE_START), NULL);
+  boffset = value_as_long (vp);
+  *skip_p = -1;
+  *boffset_p = boffset;
+  return;
+}
+
+
+/* Helper function used by value_struct_elt to recurse through baseclasses.
+   Look for a field NAME in ARG1. Adjust the address of ARG1 by OFFSET bytes,
+   and search in it assuming it has (class) type TYPE.
+   If found, return value, else if name matched and args not return (value)-1,
+   else return NULL. */
+
+static value_ptr
+search_struct_method (name, arg1p, args, offset, static_memfuncp, type)
+     char *name;
+     register value_ptr *arg1p, *args;
+     int offset, *static_memfuncp;
+     register struct type *type;
+{
+  int i;
+  value_ptr v;
+  int name_matched = 0;
+  char dem_opname[64];
+
+  CHECK_TYPEDEF (type);
+  for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; i--)
+    {
+      char *t_field_name = TYPE_FN_FIELDLIST_NAME (type, i);
+      /* FIXME!  May need to check for ARM demangling here */
+      if (strncmp(t_field_name, "__", 2)==0 ||
+	strncmp(t_field_name, "op", 2)==0 ||
+	strncmp(t_field_name, "type", 4)==0 )
+	{
+	  if (cplus_demangle_opname(t_field_name, dem_opname, DMGL_ANSI))
+	    t_field_name = dem_opname;
+	  else if (cplus_demangle_opname(t_field_name, dem_opname, 0))
+	    t_field_name = dem_opname; 
+	}
+      if (t_field_name && STREQ (t_field_name, name))
+	{
+	  int j = TYPE_FN_FIELDLIST_LENGTH (type, i) - 1;
+	  struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
+ 	  name_matched = 1; 
+
+	  if (j > 0 && args == 0)
+	    error ("cannot resolve overloaded method `%s': no arguments supplied", name);
+	  while (j >= 0)
+	    {
+	      if (TYPE_FN_FIELD_STUB (f, j))
+		check_stub_method (type, i, j);
+	      if (!typecmp (TYPE_FN_FIELD_STATIC_P (f, j),
+			    TYPE_FN_FIELD_ARGS (f, j), args))
+		{
+		  if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
+		    return value_virtual_fn_field (arg1p, f, j, type, offset);
+		  if (TYPE_FN_FIELD_STATIC_P (f, j) && static_memfuncp)
+		    *static_memfuncp = 1;
+		  v = value_fn_field (arg1p, f, j, type, offset);
+		  if (v != NULL) return v;
+		}
+	      j--;
+	    }
+	}
+    }
+
+  for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--)
+    {
+      int base_offset;
+
+      if (BASETYPE_VIA_VIRTUAL (type, i))
+	{
+         if (TYPE_HAS_VTABLE (type))
+            {
+              /* HP aCC compiled type, search for virtual base offset
+                 according to HP/Taligent runtime spec.  */
+              int skip;
+              find_rt_vbase_offset (type, TYPE_BASECLASS (type, i),
+                                    VALUE_CONTENTS_ALL (*arg1p),
+                                    offset + VALUE_EMBEDDED_OFFSET (*arg1p),
+                                    &base_offset, &skip);
+              if (skip >= 0)
+                error ("Virtual base class offset not found in vtable");
+            }
+         else
+           {
+             struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
+	     char *base_valaddr;
+
+	     /* 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 (offset < 0 || offset >= TYPE_LENGTH (type))
+	       {
+	         base_valaddr = (char *) alloca (TYPE_LENGTH (baseclass));
+	         if (target_read_memory (VALUE_ADDRESS (*arg1p)
+			 		 + VALUE_OFFSET (*arg1p) + offset,
+				         base_valaddr,
+				         TYPE_LENGTH (baseclass)) != 0)
+		   error ("virtual baseclass botch");
+	       }
+	    else
+	       base_valaddr = VALUE_CONTENTS (*arg1p) + offset;
+
+	    base_offset =
+	       baseclass_offset (type, i, base_valaddr,
+			         VALUE_ADDRESS (*arg1p)
+				   + VALUE_OFFSET (*arg1p) + offset);
+	    if (base_offset == -1)
+	       error ("virtual baseclass botch");
+	   }
+        }
+      else
+	{
+	  base_offset = TYPE_BASECLASS_BITPOS (type, i) / 8;
+        }
+      v = search_struct_method (name, arg1p, args, base_offset + offset,
+				static_memfuncp, TYPE_BASECLASS (type, i));
+      if (v == (value_ptr) -1)
+	{
+	  name_matched = 1;
+	}
+      else if (v)
+	{
+/* FIXME-bothner:  Why is this commented out?  Why is it here?  */
+/*	  *arg1p = arg1_tmp;*/
+	  return v;
+        }
+    }
+  if (name_matched) return (value_ptr) -1;
+  else return NULL;
+}
+
+/* Given *ARGP, a value of type (pointer to a)* structure/union,
+   extract the component named NAME from the ultimate target structure/union
+   and return it as a value with its appropriate type.
+   ERR is used in the error message if *ARGP's type is wrong.
+
+   C++: ARGS is a list of argument types to aid in the selection of
+   an appropriate method. Also, handle derived types.
+
+   STATIC_MEMFUNCP, if non-NULL, points to a caller-supplied location
+   where the truthvalue of whether the function that was resolved was
+   a static member function or not is stored.
+
+   ERR is an error message to be printed in case the field is not found.  */
+
+value_ptr
+value_struct_elt (argp, args, name, static_memfuncp, err)
+     register value_ptr *argp, *args;
+     char *name;
+     int *static_memfuncp;
+     char *err;
+{
+  register struct type *t;
+  value_ptr v;
+
+  COERCE_ARRAY (*argp);
+
+  t = check_typedef (VALUE_TYPE (*argp));
+
+  /* Follow pointers until we get to a non-pointer.  */
+
+  while (TYPE_CODE (t) == TYPE_CODE_PTR || TYPE_CODE (t) == TYPE_CODE_REF)
+    {
+      *argp = value_ind (*argp);
+      /* Don't coerce fn pointer to fn and then back again!  */
+      if (TYPE_CODE (VALUE_TYPE (*argp)) != TYPE_CODE_FUNC)
+	COERCE_ARRAY (*argp);
+      t = check_typedef (VALUE_TYPE (*argp));
+    }
+
+  if (TYPE_CODE (t) == TYPE_CODE_MEMBER)
+    error ("not implemented: member type in value_struct_elt");
+
+  if (   TYPE_CODE (t) != TYPE_CODE_STRUCT
+      && TYPE_CODE (t) != TYPE_CODE_UNION)
+    error ("Attempt to extract a component of a value that is not a %s.", err);
+
+  /* Assume it's not, unless we see that it is.  */
+  if (static_memfuncp)
+    *static_memfuncp =0;
+
+  if (!args)
+    {
+      /* if there are no arguments ...do this...  */
+
+      /* Try as a field first, because if we succeed, there
+	 is less work to be done.  */
+      v = search_struct_field (name, *argp, 0, t, 0);
+      if (v)
+	return v;
+
+      /* C++: If it was not found as a data field, then try to
+         return it as a pointer to a method.  */
+
+      if (destructor_name_p (name, t))
+	error ("Cannot get value of destructor");
+
+      v = search_struct_method (name, argp, args, 0, static_memfuncp, t);
+
+      if (v == (value_ptr) -1)
+	error ("Cannot take address of a method");
+      else if (v == 0)
+	{
+	  if (TYPE_NFN_FIELDS (t))
+	    error ("There is no member or method named %s.", name);
+	  else
+	    error ("There is no member named %s.", name);
+	}
+      return v;
+    }
+
+  if (destructor_name_p (name, t))
+    {
+      if (!args[1])
+	{
+	  /* Destructors are a special case.  */
+	  int m_index, f_index;
+
+	  v = NULL;
+	  if (get_destructor_fn_field (t, &m_index, &f_index))
+	    {
+	      v = value_fn_field (NULL, TYPE_FN_FIELDLIST1 (t, m_index),
+				  f_index, NULL, 0);
+	    }
+	  if (v == NULL)
+	    error ("could not find destructor function named %s.", name);
+	  else
+	    return v;
+	}
+      else
+	{
+	  error ("destructor should not have any argument");
+	}
+    }
+  else
+    v = search_struct_method (name, argp, args, 0, static_memfuncp, t);
+
+  if (v == (value_ptr) -1)
+    {
+	error("Argument list of %s mismatch with component in the structure.", name);
+    }
+  else if (v == 0)
+    {
+      /* See if user tried to invoke data as function.  If so,
+	 hand it back.  If it's not callable (i.e., a pointer to function),
+	 gdb should give an error.  */
+      v = search_struct_field (name, *argp, 0, t, 0);
+    }
+
+  if (!v)
+    error ("Structure has no component named %s.", name);
+  return v;
+}
+
+/* Search through the methods of an object (and its bases)
+ * to find a specified method. Return the pointer to the
+ * fn_field list of overloaded instances.
+ * Helper function for value_find_oload_list.
+ * ARGP is a pointer to a pointer to a value (the object)
+ * METHOD is a string containing the method name
+ * OFFSET is the offset within the value
+ * STATIC_MEMFUNCP is set if the method is static
+ * TYPE is the assumed type of the object
+ * NUM_FNS is the number of overloaded instances
+ * BASETYPE is set to the actual type of the subobject where the method is found
+ * BOFFSET is the offset of the base subobject where the method is found */
+
+struct fn_field *
+find_method_list (argp, method, offset, static_memfuncp, type, num_fns, basetype, boffset)
+  value_ptr *argp;
+  char * method;
+  int offset;
+  int * static_memfuncp;
+  struct type * type;
+  int * num_fns;
+  struct type ** basetype;
+  int * boffset;
+{
+  int i;
+  struct fn_field * f;
+  CHECK_TYPEDEF (type);
+
+  *num_fns = 0;
+
+  /* First check in object itself */ 
+  for (i = TYPE_NFN_FIELDS (type) -1; i >= 0; i--)
+    {
+      /* pai: FIXME What about operators and type conversions? */
+      char * fn_field_name = TYPE_FN_FIELDLIST_NAME (type, i);
+      if (fn_field_name && STREQ (fn_field_name, method))
+        {
+          *num_fns = TYPE_FN_FIELDLIST_LENGTH (type, i);
+          *basetype = type;
+          *boffset = offset;
+          return TYPE_FN_FIELDLIST1 (type, i);
+        }
+    }
+  
+  /* Not found in object, check in base subobjects */
+  for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--)
+    {
+      int base_offset;
+      if (BASETYPE_VIA_VIRTUAL (type, i))
+	{
+          if (TYPE_HAS_VTABLE (type))
+            {
+              /* HP aCC compiled type, search for virtual base offset
+               * according to HP/Taligent runtime spec.  */
+              int skip;
+              find_rt_vbase_offset (type, TYPE_BASECLASS (type, i),
+                                    VALUE_CONTENTS_ALL (*argp),
+                                    offset + VALUE_EMBEDDED_OFFSET (*argp),
+                                    &base_offset, &skip);
+              if (skip >= 0)
+                error ("Virtual base class offset not found in vtable");
+            }
+          else
+            {
+              /* probably g++ runtime model */ 
+              base_offset = VALUE_OFFSET (*argp) + offset;
+              base_offset =
+                baseclass_offset (type, i,
+                                  VALUE_CONTENTS (*argp) + base_offset,
+                                  VALUE_ADDRESS (*argp) + base_offset);
+              if (base_offset == -1)
+                error ("virtual baseclass botch");
+            }
+        }
+      else /* non-virtual base, simply use bit position from debug info */
+	{
+	  base_offset = TYPE_BASECLASS_BITPOS (type, i) / 8;
+        }
+      f = find_method_list (argp, method, base_offset + offset,
+                            static_memfuncp, TYPE_BASECLASS (type, i), num_fns, basetype, boffset);
+      if (f)
+        return f;
+    }
+  return NULL;  
+}
+
+/* Return the list of overloaded methods of a specified name.
+ * ARGP is a pointer to a pointer to a value (the object)
+ * METHOD is the method name
+ * OFFSET is the offset within the value contents
+ * STATIC_MEMFUNCP is set if the method is static
+ * NUM_FNS is the number of overloaded instances
+ * BASETYPE is set to the type of the base subobject that defines the method
+ * BOFFSET is the offset of the base subobject which defines the method */
+
+struct fn_field *
+value_find_oload_method_list (argp, method, offset, static_memfuncp, num_fns, basetype, boffset)
+  value_ptr *argp;
+  char * method;
+  int offset;
+  int * static_memfuncp;
+  int * num_fns;
+  struct type ** basetype;
+  int * boffset;
+{
+  struct type * t;
+  value_ptr v;
+
+  t = check_typedef (VALUE_TYPE (*argp));
+
+  /* code snarfed from value_struct_elt */ 
+  while (TYPE_CODE (t) == TYPE_CODE_PTR || TYPE_CODE (t) == TYPE_CODE_REF)
+    {
+      *argp = value_ind (*argp);
+      /* Don't coerce fn pointer to fn and then back again!  */
+      if (TYPE_CODE (VALUE_TYPE (*argp)) != TYPE_CODE_FUNC)
+	COERCE_ARRAY (*argp);
+      t = check_typedef (VALUE_TYPE (*argp));
+    }
+  
+  if (TYPE_CODE (t) == TYPE_CODE_MEMBER)
+    error ("Not implemented: member type in value_find_oload_lis");
+  
+  if (   TYPE_CODE (t) != TYPE_CODE_STRUCT
+         && TYPE_CODE (t) != TYPE_CODE_UNION)
+    error ("Attempt to extract a component of a value that is not a struct or union");
+  
+  /* Assume it's not static, unless we see that it is.  */
+  if (static_memfuncp)
+    *static_memfuncp =0;
+
+  return find_method_list (argp, method, 0, static_memfuncp, t, num_fns, basetype, boffset);
+  
+}
+
+/* Given an array of argument types (ARGTYPES) (which includes an
+   entry for "this" in the case of C++ methods), the number of
+   arguments NARGS, the NAME of a function whether it's a method or
+   not (METHOD), and the degree of laxness (LAX) in conforming to
+   overload resolution rules in ANSI C++, find the best function that
+   matches on the argument types according to the overload resolution
+   rules.
+
+   In the case of class methods, the parameter OBJ is an object value
+   in which to search for overloaded methods.
+
+   In the case of non-method functions, the parameter FSYM is a symbol
+   corresponding to one of the overloaded functions.
+
+   Return value is an integer: 0 -> good match, 10 -> debugger applied
+   non-standard coercions, 100 -> incompatible.
+
+   If a method is being searched for, VALP will hold the value.
+   If a non-method is being searched for, SYMP will hold the symbol for it.
+
+   If a method is being searched for, and it is a static method,
+   then STATICP will point to a non-zero value.
+
+   Note: This function does *not* check the value of
+   overload_resolution.  Caller must check it to see whether overload
+   resolution is permitted.
+   */
+
+int
+find_overload_match (arg_types, nargs, name, method, lax, obj, fsym, valp, symp, staticp)
+  struct type ** arg_types;
+  int nargs;
+  char * name;
+  int method;
+  int lax;
+  value_ptr obj;
+  struct symbol * fsym;
+  value_ptr * valp;
+  struct symbol ** symp;
+  int * staticp;
+{
+  int nparms;
+  struct type ** parm_types;
+  int champ_nparms = 0;
+  
+  short oload_champ = -1;          /* Index of best overloaded function */
+  short oload_ambiguous = 0;       /* Current ambiguity state for overload resolution */
+                                   /* 0 => no ambiguity, 1 => two good funcs, 2 => incomparable funcs */
+  short oload_ambig_champ = -1;    /* 2nd contender for best match */ 
+  short oload_non_standard = 0;    /* did we have to use non-standard conversions? */ 
+  short oload_incompatible = 0;    /* are args supplied incompatible with any function? */
+  
+  struct badness_vector * bv;      /* A measure of how good an overloaded instance is */ 
+  struct badness_vector * oload_champ_bv = NULL; /* The measure for the current best match */ 
+  
+  value_ptr temp = obj;
+  struct fn_field * fns_ptr = NULL;   /* For methods, the list of overloaded methods */ 
+  struct symbol ** oload_syms = NULL; /* For non-methods, the list of overloaded function symbols */
+  int num_fns = 0;                    /* Number of overloaded instances being considered */ 
+  struct type * basetype = NULL;   
+  int boffset;
+  register int jj;
+  register int ix;
+
+  char * obj_type_name = NULL;
+  char * func_name = NULL;
+
+  /* Get the list of overloaded methods or functions */
+  if (method)
+    {
+      obj_type_name = TYPE_NAME (VALUE_TYPE (obj));
+      /* Hack: evaluate_subexp_standard often passes in a pointer
+         value rather than the object itself, so try again */
+      if ((!obj_type_name || !*obj_type_name) &&
+          (TYPE_CODE (VALUE_TYPE (obj)) == TYPE_CODE_PTR))
+        obj_type_name = TYPE_NAME (TYPE_TARGET_TYPE (VALUE_TYPE (obj)));
+
+      fns_ptr = value_find_oload_method_list (&temp, name, 0,
+                                              staticp,
+                                              &num_fns,
+                                              &basetype, &boffset);
+      if (!fns_ptr || !num_fns)
+        error ("Couldn't find method %s%s%s",
+               obj_type_name,
+               (obj_type_name && *obj_type_name) ? "::" : "",
+               name);
+    }
+  else
+    {
+      int i = -1;
+      func_name = cplus_demangle (SYMBOL_NAME (fsym), DMGL_NO_OPTS);
+
+      oload_syms = make_symbol_overload_list (fsym);
+      while (oload_syms[++i])
+        num_fns++;
+      if (!num_fns)
+        error ("Couldn't find function %s", func_name);
+    }
+  
+  oload_champ_bv = NULL;
+
+  /* Consider each candidate in turn */ 
+  for (ix = 0; ix < num_fns; ix++)
+    {
+      int jj;
+
+      /* Number of parameters for current candidate */ 
+      nparms = method ? TYPE_NFIELDS (fns_ptr[ix].type)
+                      : TYPE_NFIELDS (SYMBOL_TYPE (oload_syms[ix]));
+
+      /* Prepare array of parameter types */ 
+      parm_types = (struct type **) xmalloc (nparms * (sizeof (struct type *)));
+      for (jj = 0; jj < nparms; jj++)
+        parm_types[jj] = method ? TYPE_FIELD_TYPE (fns_ptr[ix].type, jj)
+                                : TYPE_FIELD_TYPE (SYMBOL_TYPE (oload_syms[ix]), jj);
+
+      /* Compare parameter types to supplied argument types */
+      bv = rank_function (parm_types, nparms, arg_types, nargs);
+      
+      if (!oload_champ_bv)
+        {
+          oload_champ_bv = bv;
+          oload_champ = 0;
+          champ_nparms = nparms;
+        }
+      else
+        /* See whether current candidate is better or worse than previous best */ 
+        switch (compare_badness (bv, oload_champ_bv))
+          {
+            case 0:
+              oload_ambiguous = 1;    /* top two contenders are equally good */ 
+              oload_ambig_champ = ix;
+              break;
+            case 1:
+              oload_ambiguous = 2;    /* incomparable top contenders */ 
+              oload_ambig_champ = ix;
+              break;
+            case 2:
+              oload_champ_bv = bv;    /* new champion, record details */ 
+              oload_ambiguous = 0;
+              oload_champ = ix;
+              oload_ambig_champ = -1;
+              champ_nparms = nparms;
+              break;
+            case 3:
+            default:
+              break;
+          }
+      free (parm_types);
+#ifdef DEBUG_OLOAD
+      if (method)
+        printf("Overloaded method instance %s, # of parms %d\n", fns_ptr[ix].physname, nparms);
+      else
+        printf("Overloaded function instance %s # of parms %d\n", SYMBOL_DEMANGLED_NAME(oload_syms[ix]),nparms); 
+      for (jj = 0; jj <= nargs; jj++)
+        printf("...Badness @ %d : %d\n", jj, bv->rank[jj]);
+      printf("Overload resolution champion is %d, ambiguous? %d\n", oload_champ, oload_ambiguous);
+#endif
+    } /* end loop over all candidates */ 
+
+  if (oload_ambiguous)
+    {
+      if (method)
+        error ("Cannot resolve overloaded method %s%s%s to unique instance; disambiguate by specifying function signature",
+               obj_type_name,
+               (obj_type_name && *obj_type_name) ? "::" : "",
+               name);
+      else
+        error ("Cannot resolve overloaded function %s to unique instance; disambiguate by specifying function signature",
+               func_name);
+    }
+
+  /* Check how bad the best match is */ 
+  for (ix = 1; ix <= nargs; ix++)
+    {
+      switch (oload_champ_bv->rank[ix])
+        {
+          case 10:
+            oload_non_standard = 1;  /* non-standard type conversions needed */ 
+            break;
+          case 100:
+            oload_incompatible = 1;  /* truly mismatched types */ 
+            break;
+        }
+    }
+  if (oload_incompatible)
+    {
+      if (method)
+        error ("Cannot resolve method %s%s%s to any overloaded instance",
+               obj_type_name,
+               (obj_type_name && *obj_type_name) ? "::" : "",
+               name);
+      else
+        error ("Cannot resolve function %s to any overloaded instance",
+               func_name);
+    }
+  else if (oload_non_standard)
+    {
+      if (method)
+        warning ("Using non-standard conversion to match method %s%s%s to supplied arguments",
+                 obj_type_name,
+                 (obj_type_name && *obj_type_name) ? "::" : "",
+                 name);
+      else
+        warning ("Using non-standard conversion to match function %s to supplied arguments",
+                 func_name);
+    }
+
+  if (method)
+    {
+      if (TYPE_FN_FIELD_VIRTUAL_P (fns_ptr, oload_champ))
+        *valp = value_virtual_fn_field (&temp, fns_ptr, oload_champ, basetype, boffset);
+      else
+        *valp = value_fn_field (&temp, fns_ptr, oload_champ, basetype, boffset);
+    }
+  else
+    {
+      *symp = oload_syms[oload_champ];
+      free (func_name);
+    }
+
+  return oload_incompatible ? 100 : (oload_non_standard ? 10 : 0);
+}
+
+/* C++: return 1 is NAME is a legitimate name for the destructor
+   of type TYPE.  If TYPE does not have a destructor, or
+   if NAME is inappropriate for TYPE, an error is signaled.  */
+int
+destructor_name_p (name, type)
+     const char *name;
+     const struct type *type;
+{
+  /* destructors are a special case.  */
+
+  if (name[0] == '~')
+    {
+      char *dname = type_name_no_tag (type);
+      char *cp = strchr (dname, '<');
+      unsigned int len;
+
+      /* Do not compare the template part for template classes.  */
+      if (cp == NULL)
+	len = strlen (dname);
+      else
+	len = cp - dname;
+      if (strlen (name + 1) != len || !STREQN (dname, name + 1, len))
+	error ("name of destructor must equal name of class");
+      else
+	return 1;
+    }
+  return 0;
+}
+
+/* Helper function for check_field: Given TYPE, a structure/union,
+   return 1 if the component named NAME from the ultimate
+   target structure/union is defined, otherwise, return 0. */
+
+static int
+check_field_in (type, name)
+     register struct type *type;
+     const char *name;
+{
+  register int i;
+
+  for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--)
+    {
+      char *t_field_name = TYPE_FIELD_NAME (type, i);
+      if (t_field_name && STREQ (t_field_name, name))
+	return 1;
+    }
+
+  /* C++: If it was not found as a data field, then try to
+     return it as a pointer to a method.  */
+
+  /* Destructors are a special case.  */
+  if (destructor_name_p (name, type))
+    {
+      int m_index, f_index;
+
+      return get_destructor_fn_field (type, &m_index, &f_index);
+    }
+
+  for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i)
+    {
+      if (STREQ (TYPE_FN_FIELDLIST_NAME (type, i), name))
+	return 1;
+    }
+
+  for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--)
+    if (check_field_in (TYPE_BASECLASS (type, i), name))
+      return 1;
+      
+  return 0;
+}
+
+
+/* C++: Given ARG1, a value of type (pointer to a)* structure/union,
+   return 1 if the component named NAME from the ultimate
+   target structure/union is defined, otherwise, return 0.  */
+
+int
+check_field (arg1, name)
+     register value_ptr arg1;
+     const char *name;
+{
+  register struct type *t;
+
+  COERCE_ARRAY (arg1);
+
+  t = VALUE_TYPE (arg1);
+
+  /* Follow pointers until we get to a non-pointer.  */
+
+  for (;;)
+    {
+      CHECK_TYPEDEF (t);
+      if (TYPE_CODE (t) != TYPE_CODE_PTR && TYPE_CODE (t) != TYPE_CODE_REF)
+	break;
+      t = TYPE_TARGET_TYPE (t);
+    }
+
+  if (TYPE_CODE (t) == TYPE_CODE_MEMBER)
+    error ("not implemented: member type in check_field");
+
+  if (   TYPE_CODE (t) != TYPE_CODE_STRUCT
+      && TYPE_CODE (t) != TYPE_CODE_UNION)
+    error ("Internal error: `this' is not an aggregate");
+
+  return check_field_in (t, name);
+}
+
+/* C++: Given an aggregate type CURTYPE, and a member name NAME,
+   return the address of this member as a "pointer to member"
+   type.  If INTYPE is non-null, then it will be the type
+   of the member we are looking for.  This will help us resolve
+   "pointers to member functions".  This function is used
+   to resolve user expressions of the form "DOMAIN::NAME".  */
+
+value_ptr
+value_struct_elt_for_reference (domain, offset, curtype, name, intype)
+     struct type *domain, *curtype, *intype;
+     int offset;
+     char *name;
+{
+  register struct type *t = curtype;
+  register int i;
+  value_ptr v;
+
+  if (   TYPE_CODE (t) != TYPE_CODE_STRUCT
+      && TYPE_CODE (t) != TYPE_CODE_UNION)
+    error ("Internal error: non-aggregate type to value_struct_elt_for_reference");
+
+  for (i = TYPE_NFIELDS (t) - 1; i >= TYPE_N_BASECLASSES (t); i--)
+    {
+      char *t_field_name = TYPE_FIELD_NAME (t, i);
+      
+      if (t_field_name && STREQ (t_field_name, name))
+	{
+	  if (TYPE_FIELD_STATIC (t, i))
+	    {
+	      v = value_static_field (t, i);
+	      if (v == NULL)
+		error ("Internal error: could not find static variable %s",
+		       name);
+	      return v;
+	    }
+	  if (TYPE_FIELD_PACKED (t, i))
+	    error ("pointers to bitfield members not allowed");
+	  
+	  return value_from_longest
+	    (lookup_reference_type (lookup_member_type (TYPE_FIELD_TYPE (t, i),
+							domain)),
+	     offset + (LONGEST) (TYPE_FIELD_BITPOS (t, i) >> 3));
+	}
+    }
+
+  /* C++: If it was not found as a data field, then try to
+     return it as a pointer to a method.  */
+
+  /* Destructors are a special case.  */
+  if (destructor_name_p (name, t))
+    {
+      error ("member pointers to destructors not implemented yet");
+    }
+
+  /* Perform all necessary dereferencing.  */
+  while (intype && TYPE_CODE (intype) == TYPE_CODE_PTR)
+    intype = TYPE_TARGET_TYPE (intype);
+
+  for (i = TYPE_NFN_FIELDS (t) - 1; i >= 0; --i)
+    {
+      char *t_field_name = TYPE_FN_FIELDLIST_NAME (t, i);
+      char dem_opname[64];
+
+      if (strncmp(t_field_name, "__", 2)==0 ||
+	strncmp(t_field_name, "op", 2)==0 ||
+	strncmp(t_field_name, "type", 4)==0 )
+	{
+	  if (cplus_demangle_opname(t_field_name, dem_opname, DMGL_ANSI))
+	    t_field_name = dem_opname;
+	  else if (cplus_demangle_opname(t_field_name, dem_opname, 0))
+	    t_field_name = dem_opname; 
+	}
+      if (t_field_name && STREQ (t_field_name, name))
+	{
+	  int j = TYPE_FN_FIELDLIST_LENGTH (t, i);
+	  struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i);
+	  
+	  if (intype == 0 && j > 1)
+	    error ("non-unique member `%s' requires type instantiation", name);
+	  if (intype)
+	    {
+	      while (j--)
+		if (TYPE_FN_FIELD_TYPE (f, j) == intype)
+		  break;
+	      if (j < 0)
+		error ("no member function matches that type instantiation");
+	    }
+	  else
+	    j = 0;
+	  
+	  if (TYPE_FN_FIELD_STUB (f, j))
+	    check_stub_method (t, i, j);
+	  if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
+	    {
+	      return value_from_longest
+		(lookup_reference_type
+		 (lookup_member_type (TYPE_FN_FIELD_TYPE (f, j),
+				      domain)),
+		 (LONGEST) METHOD_PTR_FROM_VOFFSET (TYPE_FN_FIELD_VOFFSET (f, j)));
+	    }
+	  else
+	    {
+	      struct symbol *s = lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j),
+						0, VAR_NAMESPACE, 0, NULL);
+	      if (s == NULL)
+		{
+		  v = 0;
+		}
+	      else
+		{
+		  v = read_var_value (s, 0);
+#if 0
+		  VALUE_TYPE (v) = lookup_reference_type
+		    (lookup_member_type (TYPE_FN_FIELD_TYPE (f, j),
+					 domain));
+#endif
+		}
+	      return v;
+	    }
+	}
+    }
+  for (i = TYPE_N_BASECLASSES (t) - 1; i >= 0; i--)
+    {
+      value_ptr v;
+      int base_offset;
+
+      if (BASETYPE_VIA_VIRTUAL (t, i))
+	base_offset = 0;
+      else
+	base_offset = TYPE_BASECLASS_BITPOS (t, i) / 8;
+      v = value_struct_elt_for_reference (domain,
+					  offset + base_offset,
+					  TYPE_BASECLASS (t, i),
+					  name,
+					  intype);
+      if (v)
+	return v;
+    }
+  return 0;
+}
+
+
+/* Find the real run-time type of a value using RTTI.
+ * V is a pointer to the value.
+ * A pointer to the struct type entry of the run-time type
+ * is returneed.
+ * FULL is a flag that is set only if the value V includes
+ * the entire contents of an object of the RTTI type.
+ * TOP is the offset to the top of the enclosing object of
+ * the real run-time type.  This offset may be for the embedded
+ * object, or for the enclosing object of V.
+ * USING_ENC is the flag that distinguishes the two cases.
+ * If it is 1, then the offset is for the enclosing object,
+ * otherwise for the embedded object.
+ * 
+ * This currently works only for RTTI information generated
+ * by the HP ANSI C++ compiler (aCC).  g++ today (1997-06-10)
+ * does not appear to support RTTI. This function returns a
+ * NULL value for objects in the g++ runtime model. */
+
+struct type *
+value_rtti_type (v, full, top, using_enc)
+  value_ptr v;
+  int * full;
+  int * top;
+  int * using_enc;
+{
+  struct type * known_type;
+  struct type * rtti_type;
+  CORE_ADDR coreptr;
+  value_ptr vp;
+  int using_enclosing = 0;
+  long top_offset = 0;
+  char rtti_type_name[256];
+
+  if (full)
+    *full = 0;
+  if (top)
+    *top = -1;
+  if (using_enc)
+    *using_enc = 0;
+
+  /* Get declared type */ 
+  known_type = VALUE_TYPE (v);
+  CHECK_TYPEDEF (known_type);
+  /* RTTI works only or class objects */ 
+  if (TYPE_CODE (known_type) != TYPE_CODE_CLASS)
+    return NULL;
+
+  /* If neither the declared type nor the enclosing type of the
+   * value structure has a HP ANSI C++ style virtual table,
+   * we can't do anything. */
+  if (!TYPE_HAS_VTABLE (known_type))
+    {
+      known_type = VALUE_ENCLOSING_TYPE (v);
+      CHECK_TYPEDEF (known_type);
+      if ((TYPE_CODE (known_type) != TYPE_CODE_CLASS) ||
+          !TYPE_HAS_VTABLE (known_type))
+        return NULL; /* No RTTI, or not HP-compiled types */
+      CHECK_TYPEDEF (known_type);
+      using_enclosing = 1;
+    }
+
+  if (using_enclosing && using_enc)
+    *using_enc = 1;
+
+  /* First get the virtual table address */
+  coreptr = * (CORE_ADDR *) ((VALUE_CONTENTS_ALL (v))
+                             + VALUE_OFFSET (v) 
+                             + (using_enclosing ? 0 : VALUE_EMBEDDED_OFFSET (v)));
+  if (coreptr == 0)
+    return NULL; /* return silently -- maybe called on gdb-generated value */
+
+  /* Fetch the top offset of the object */ 
+  /* FIXME possible 32x64 problem with pointer size & arithmetic */
+  vp = value_at (builtin_type_int, 
+                 coreptr + 4 * HP_ACC_TOP_OFFSET_OFFSET, 
+                 VALUE_BFD_SECTION (v));
+  top_offset = value_as_long (vp);
+  if (top)
+    *top = top_offset;
+
+  /* Fetch the typeinfo pointer */
+  /* FIXME possible 32x64 problem with pointer size & arithmetic */
+  vp = value_at (builtin_type_int, coreptr + 4 * HP_ACC_TYPEINFO_OFFSET, VALUE_BFD_SECTION (v));
+  /* Indirect through the typeinfo pointer and retrieve the pointer
+   * to the string name */
+  coreptr = * (CORE_ADDR *) (VALUE_CONTENTS (vp));
+  if (!coreptr)
+    error ("Retrieved null typeinfo pointer in trying to determine run-time type");
+  vp = value_at (builtin_type_int, coreptr + 4, VALUE_BFD_SECTION (v));  /* 4 -> offset of name field */
+                                                  /* FIXME possible 32x64 problem */
+
+  coreptr = * (CORE_ADDR *) (VALUE_CONTENTS (vp));
+
+  read_memory_string (coreptr, rtti_type_name, 256);
+
+  if (strlen (rtti_type_name) == 0)
+    error ("Retrieved null type name from typeinfo");
+  
+  /* search for type */
+  rtti_type = lookup_typename (rtti_type_name, (struct block *) 0, 1);
+  
+  if (!rtti_type)
+    error ("Could not find run-time type: invalid type name %s in typeinfo??", rtti_type_name);
+  CHECK_TYPEDEF (rtti_type);
+
+#if 0 /* debugging*/
+  printf("RTTI type name %s, tag %s, full? %d\n", TYPE_NAME (rtti_type), TYPE_TAG_NAME (rtti_type), full ? *full : -1); 
+#endif
+
+  /* Check whether we have the entire object */
+  if (full /* Non-null pointer passed */ 
+
+      &&
+           /* Either we checked on the whole object in hand and found the
+              top offset to be zero */
+      (((top_offset == 0) &&         
+       using_enclosing &&     
+       TYPE_LENGTH (known_type) == TYPE_LENGTH (rtti_type))
+      ||
+           /* Or we checked on the embedded object and top offset was the
+              same as the embedded offset */
+      ((top_offset == VALUE_EMBEDDED_OFFSET (v)) &&
+       !using_enclosing &&
+       TYPE_LENGTH (VALUE_ENCLOSING_TYPE (v)) == TYPE_LENGTH (rtti_type))))
+    
+    *full = 1;
+  
+  return rtti_type;
+}
+
+/* Given a pointer value V, find the real (RTTI) type
+   of the object it points to.
+   Other parameters FULL, TOP, USING_ENC as with value_rtti_type()
+   and refer to the values computed for the object pointed to. */
+
+struct type *
+value_rtti_target_type (v, full, top, using_enc)
+  value_ptr v;
+  int * full;
+  int * top;
+  int * using_enc;
+{
+  value_ptr target;
+
+  target = value_ind (v);
+
+  return value_rtti_type (target, full, top, using_enc);
+}
+
+/* Given a value pointed to by ARGP, check its real run-time type, and
+   if that is different from the enclosing type, create a new value
+   using the real run-time type as the enclosing type (and of the same
+   type as ARGP) and return it, with the embedded offset adjusted to
+   be the correct offset to the enclosed object
+   RTYPE is the type, and XFULL, XTOP, and XUSING_ENC are the other
+   parameters, computed by value_rtti_type(). If these are available,
+   they can be supplied and a second call to value_rtti_type() is avoided.
+   (Pass RTYPE == NULL if they're not available */
+
+value_ptr
+value_full_object (argp, rtype, xfull, xtop, xusing_enc)
+  value_ptr argp;
+  struct type * rtype;
+  int xfull;
+  int xtop;
+  int xusing_enc;
+  
+{
+  struct type * real_type;
+  int full = 0;
+  int top = -1;
+  int using_enc = 0;
+  value_ptr new_val;
+
+  if (rtype)
+    {
+      real_type = rtype;
+      full = xfull;
+      top = xtop;
+      using_enc = xusing_enc;
+    }
+  else
+    real_type = value_rtti_type (argp, &full, &top, &using_enc);
+
+  /* If no RTTI data, or if object is already complete, do nothing */
+  if (!real_type || real_type == VALUE_ENCLOSING_TYPE (argp))
+    return argp;
+
+  /* If we have the full object, but for some reason the enclosing
+     type is wrong, set it */ /* pai: FIXME -- sounds iffy */
+  if (full)
+    {
+      VALUE_ENCLOSING_TYPE (argp) = real_type;
+      return argp;
+    }
+
+  /* Check if object is in memory */
+  if (VALUE_LVAL (argp) != lval_memory)
+    {
+      warning ("Couldn't retrieve complete object of RTTI type %s; object may be in register(s).", TYPE_NAME (real_type));
+      
+      return argp;
+    }
+  
+  /* All other cases -- retrieve the complete object */
+  /* Go back by the computed top_offset from the beginning of the object,
+     adjusting for the embedded offset of argp if that's what value_rtti_type
+     used for its computation. */
+  new_val = value_at_lazy (real_type, VALUE_ADDRESS (argp) - top +
+                           (using_enc ? 0 : VALUE_EMBEDDED_OFFSET (argp)), 
+                           VALUE_BFD_SECTION (argp));
+  VALUE_TYPE (new_val) = VALUE_TYPE (argp);
+  VALUE_EMBEDDED_OFFSET (new_val) = using_enc ? top + VALUE_EMBEDDED_OFFSET (argp) : top;
+  return new_val;
+}
+
+
+
+
+/* C++: return the value of the class instance variable, if one exists.
+   Flag COMPLAIN signals an error if the request is made in an
+   inappropriate context.  */
+
+value_ptr
+value_of_this (complain)
+     int complain;
+{
+  struct symbol *func, *sym;
+  struct block *b;
+  int i;
+  static const char funny_this[] = "this";
+  value_ptr this;
+
+  if (selected_frame == 0)
+    {
+      if (complain)
+        error ("no frame selected");
+      else return 0;
+    }
+
+  func = get_frame_function (selected_frame);
+  if (!func)
+    {
+      if (complain)
+	error ("no `this' in nameless context");
+      else return 0;
+    }
+
+  b = SYMBOL_BLOCK_VALUE (func);
+  i = BLOCK_NSYMS (b);
+  if (i <= 0)
+    {
+      if (complain)
+        error ("no args, no `this'");
+      else return 0;
+    }
+
+  /* Calling lookup_block_symbol is necessary to get the LOC_REGISTER
+     symbol instead of the LOC_ARG one (if both exist).  */
+  sym = lookup_block_symbol (b, funny_this, VAR_NAMESPACE);
+  if (sym == NULL)
+    {
+      if (complain)
+	error ("current stack frame not in method");
+      else
+	return NULL;
+    }
+
+  this = read_var_value (sym, selected_frame);
+  if (this == 0 && complain)
+    error ("`this' argument at unknown address");
+  return this;
+}
+
+/* Create a slice (sub-string, sub-array) of ARRAY, that is LENGTH elements
+   long, starting at LOWBOUND.  The result has the same lower bound as
+   the original ARRAY.  */
+
+value_ptr
+value_slice (array, lowbound, length)
+     value_ptr array;
+     int lowbound, length;
+{
+  struct type *slice_range_type, *slice_type, *range_type;
+  LONGEST lowerbound, upperbound, offset;
+  value_ptr slice;
+  struct type *array_type;
+  array_type = check_typedef (VALUE_TYPE (array));
+  COERCE_VARYING_ARRAY (array, array_type);
+  if (TYPE_CODE (array_type) != TYPE_CODE_ARRAY
+      && TYPE_CODE (array_type) != TYPE_CODE_STRING
+      && TYPE_CODE (array_type) != TYPE_CODE_BITSTRING)
+    error ("cannot take slice of non-array");
+  range_type = TYPE_INDEX_TYPE (array_type);
+  if (get_discrete_bounds (range_type, &lowerbound, &upperbound) < 0)
+    error ("slice from bad array or bitstring");
+  if (lowbound < lowerbound || length < 0
+      || lowbound + length - 1 > upperbound
+      /* Chill allows zero-length strings but not arrays. */
+      || (current_language->la_language == language_chill
+	  && length == 0 && TYPE_CODE (array_type) == TYPE_CODE_ARRAY))
+    error ("slice out of range");
+  /* FIXME-type-allocation: need a way to free this type when we are
+     done with it.  */
+  slice_range_type = create_range_type ((struct type*) NULL,
+					TYPE_TARGET_TYPE (range_type),
+					lowbound, lowbound + length - 1);
+  if (TYPE_CODE (array_type) == TYPE_CODE_BITSTRING)
+    {
+      int i;
+      slice_type = create_set_type ((struct type*) NULL, slice_range_type);
+      TYPE_CODE (slice_type) = TYPE_CODE_BITSTRING;
+      slice = value_zero (slice_type, not_lval);
+      for (i = 0; i < length; i++)
+	{
+	  int element = value_bit_index (array_type,
+					 VALUE_CONTENTS (array),
+					 lowbound + i);
+	  if (element < 0)
+	    error ("internal error accessing bitstring");
+	  else if (element > 0)
+	    {
+	      int j = i % TARGET_CHAR_BIT;
+	      if (BITS_BIG_ENDIAN)
+		j = TARGET_CHAR_BIT - 1 - j;
+	      VALUE_CONTENTS_RAW (slice)[i / TARGET_CHAR_BIT] |= (1 << j);
+	    }
+	}
+      /* We should set the address, bitssize, and bitspos, so the clice
+	 can be used on the LHS, but that may require extensions to
+	 value_assign.  For now, just leave as a non_lval.  FIXME.  */
+    }
+  else
+    {
+      struct type *element_type = TYPE_TARGET_TYPE (array_type);
+      offset
+	= (lowbound - lowerbound) * TYPE_LENGTH (check_typedef (element_type));
+      slice_type = create_array_type ((struct type*) NULL, element_type,
+				      slice_range_type);
+      TYPE_CODE (slice_type) = TYPE_CODE (array_type);
+      slice = allocate_value (slice_type);
+      if (VALUE_LAZY (array))
+	VALUE_LAZY (slice) = 1;
+      else
+	memcpy (VALUE_CONTENTS (slice), VALUE_CONTENTS (array) + offset,
+		TYPE_LENGTH (slice_type));
+      if (VALUE_LVAL (array) == lval_internalvar)
+	VALUE_LVAL (slice) = lval_internalvar_component;
+      else
+	VALUE_LVAL (slice) = VALUE_LVAL (array);
+      VALUE_ADDRESS (slice) = VALUE_ADDRESS (array);
+      VALUE_OFFSET (slice) = VALUE_OFFSET (array) + offset;
+    }
+  return slice;
+}
+
+/* Assuming chill_varying_type (VARRAY) is true, return an equivalent
+   value as a fixed-length array. */
+
+value_ptr
+varying_to_slice (varray)
+     value_ptr varray;
+{
+  struct type *vtype = check_typedef (VALUE_TYPE (varray));
+  LONGEST length = unpack_long (TYPE_FIELD_TYPE (vtype, 0),
+				VALUE_CONTENTS (varray)
+				+ TYPE_FIELD_BITPOS (vtype, 0) / 8);
+  return value_slice (value_primitive_field (varray, 0, 1, vtype), 0, length);
+}
+
+/* Create a value for a FORTRAN complex number.  Currently most of 
+   the time values are coerced to COMPLEX*16 (i.e. a complex number 
+   composed of 2 doubles.  This really should be a smarter routine 
+   that figures out precision inteligently as opposed to assuming 
+   doubles. FIXME: fmb */ 
+
+value_ptr
+value_literal_complex (arg1, arg2, type)
+     value_ptr arg1;
+     value_ptr arg2;
+     struct type *type;
+{
+  register value_ptr val;
+  struct type *real_type = TYPE_TARGET_TYPE (type);
+
+  val = allocate_value (type);
+  arg1 = value_cast (real_type, arg1);
+  arg2 = value_cast (real_type, arg2);
+
+  memcpy (VALUE_CONTENTS_RAW (val),
+	  VALUE_CONTENTS (arg1), TYPE_LENGTH (real_type));
+  memcpy (VALUE_CONTENTS_RAW (val) + TYPE_LENGTH (real_type),
+	  VALUE_CONTENTS (arg2), TYPE_LENGTH (real_type));
+  return val;
+}
+
+/* Cast a value into the appropriate complex data type. */
+
+static value_ptr
+cast_into_complex (type, val)
+     struct type *type;
+     register value_ptr val;
+{
+  struct type *real_type = TYPE_TARGET_TYPE (type);
+  if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_COMPLEX)
+    {
+      struct type *val_real_type = TYPE_TARGET_TYPE (VALUE_TYPE (val));
+      value_ptr re_val = allocate_value (val_real_type);
+      value_ptr im_val = allocate_value (val_real_type);
+
+      memcpy (VALUE_CONTENTS_RAW (re_val),
+	      VALUE_CONTENTS (val), TYPE_LENGTH (val_real_type));
+      memcpy (VALUE_CONTENTS_RAW (im_val),
+	      VALUE_CONTENTS (val) + TYPE_LENGTH (val_real_type),
+	       TYPE_LENGTH (val_real_type));
+
+      return value_literal_complex (re_val, im_val, type);
+    }
+  else if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_FLT
+	   || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_INT)
+    return value_literal_complex (val, value_zero (real_type, not_lval), type);
+  else
+    error ("cannot cast non-number to complex");
+}
+
+void
+_initialize_valops ()
+{
+#if 0
+  add_show_from_set
+    (add_set_cmd ("abandon", class_support, var_boolean, (char *)&auto_abandon,
+		  "Set automatic abandonment of expressions upon failure.",
+		  &setlist),
+     &showlist);
+#endif
+
+  add_show_from_set
+    (add_set_cmd ("overload-resolution", class_support, var_boolean, (char *)&overload_resolution,
+		  "Set overload resolution in evaluating C++ functions.",
+		  &setlist),
+     &showlist);
+  overload_resolution = 1;
+
+}