i386: Align branches within a fixed boundary
[deliverable/binutils-gdb.git] / gdb / f-lang.c
index a477c40d047e4c59dd90939f4bbe895929c7c69c..022918efa2d928fdfbf87a354d596adad3f671bc 100644 (file)
@@ -1,90 +1,76 @@
 /* Fortran language support routines for GDB, the GNU debugger.
-   Copyright 1993, 1994, 1996 Free Software Foundation, Inc.
+
+   Copyright (C) 1993-2019 Free Software Foundation, Inc.
+
    Contributed by Motorola.  Adapted from the C parser by Farooq Butt
    (fmbutt@engage.sps.mot.com).
 
-This file is part of GDB.
+   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 free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   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.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
-#include "gdb_string.h"
 #include "symtab.h"
 #include "gdbtypes.h"
 #include "expression.h"
 #include "parser-defs.h"
 #include "language.h"
+#include "varobj.h"
+#include "gdbcore.h"
 #include "f-lang.h"
+#include "valprint.h"
+#include "value.h"
+#include "cp-support.h"
+#include "charset.h"
+#include "c-lang.h"
+#include "target-float.h"
+#include "gdbarch.h"
 
-/* The built-in types of F77.  FIXME: integer*4 is missing, plain
-   logical is missing (builtin_type_logical is logical*4).  */
-
-struct type *builtin_type_f_character;
-struct type *builtin_type_f_logical;
-struct type *builtin_type_f_logical_s1;
-struct type *builtin_type_f_logical_s2;
-struct type *builtin_type_f_integer; 
-struct type *builtin_type_f_integer_s2;
-struct type *builtin_type_f_real;
-struct type *builtin_type_f_real_s8;
-struct type *builtin_type_f_real_s16;
-struct type *builtin_type_f_complex_s8;
-struct type *builtin_type_f_complex_s16;
-struct type *builtin_type_f_complex_s32;
-struct type *builtin_type_f_void;
-
-/* Following is dubious stuff that had been in the xcoff reader. */
-
-struct saved_fcn
-{
-  long                         line_offset;  /* Line offset for function */ 
-  struct saved_fcn             *next;      
-}; 
+#include <math.h>
 
+/* Local functions */
 
-struct saved_bf_symnum 
+static void f_printchar (int c, struct type *type, struct ui_file * stream);
+static void f_emit_char (int c, struct type *type,
+                        struct ui_file * stream, int quoter);
+
+/* Return the encoding that should be used for the character type
+   TYPE.  */
+
+static const char *
+f_get_encoding (struct type *type)
 {
-  long       symnum_fcn;  /* Symnum of function (i.e. .function directive) */
-  long       symnum_bf;   /* Symnum of .bf for this function */ 
-  struct saved_bf_symnum *next;  
-}; 
+  const char *encoding;
 
-typedef struct saved_fcn           SAVED_FUNCTION, *SAVED_FUNCTION_PTR; 
-typedef struct saved_bf_symnum     SAVED_BF, *SAVED_BF_PTR; 
+  switch (TYPE_LENGTH (type))
+    {
+    case 1:
+      encoding = target_charset (get_type_arch (type));
+      break;
+    case 4:
+      if (type_byte_order (type) == BFD_ENDIAN_BIG)
+       encoding = "UTF-32BE";
+      else
+       encoding = "UTF-32LE";
+      break;
 
-/* Local functions */
+    default:
+      error (_("unrecognized character type"));
+    }
 
-#if 0
-static void clear_function_list PARAMS ((void));
-static long get_bf_for_fcn PARAMS ((long));
-static void clear_bf_list PARAMS ((void));
-static void patch_all_commons_by_name PARAMS ((char *, CORE_ADDR, int));
-static SAVED_F77_COMMON_PTR find_first_common_named PARAMS ((char *));
-static void add_common_entry PARAMS ((struct symbol *));
-static void add_common_block PARAMS ((char *, CORE_ADDR, int, char *));
-static SAVED_FUNCTION *allocate_saved_function_node PARAMS ((void));
-static SAVED_BF_PTR allocate_saved_bf_node PARAMS ((void));
-static COMMON_ENTRY_PTR allocate_common_entry_node PARAMS ((void));
-static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node PARAMS ((void));
-static void patch_common_entries PARAMS ((SAVED_F77_COMMON_PTR, CORE_ADDR, int));
-#endif
-
-static struct type *f_create_fundamental_type PARAMS ((struct objfile *, int));
-static void f_printstr PARAMS ((FILE *, char *, unsigned int, int));
-static void f_printchar PARAMS ((int, FILE *));
-static void emit_char PARAMS ((int, FILE *, int));
+  return encoding;
+}
 
 /* Print the character C on STREAM as part of the contents of a literal
    string whose delimiter is QUOTER.  Note that that format for printing
@@ -93,61 +79,20 @@ static void emit_char PARAMS ((int, FILE *, int));
    be replaced with a true F77 version.  */
 
 static void
-emit_char (c, stream, quoter)
-     register int c;
-     FILE *stream;
-     int quoter;
+f_emit_char (int c, struct type *type, struct ui_file *stream, int quoter)
 {
-  c &= 0xFF;                   /* Avoid sign bit follies */
-  
-  if (PRINT_LITERAL_FORM (c))
-    {
-      if (c == '\\' || c == quoter)
-       fputs_filtered ("\\", stream);
-      fprintf_filtered (stream, "%c", c);
-    }
-  else
-    {
-      switch (c)
-       {
-       case '\n':
-         fputs_filtered ("\\n", stream);
-         break;
-       case '\b':
-         fputs_filtered ("\\b", stream);
-         break;
-       case '\t':
-         fputs_filtered ("\\t", stream);
-         break;
-       case '\f':
-         fputs_filtered ("\\f", stream);
-         break;
-       case '\r':
-         fputs_filtered ("\\r", stream);
-         break;
-       case '\033':
-         fputs_filtered ("\\e", stream);
-         break;
-       case '\007':
-         fputs_filtered ("\\a", stream);
-         break;
-       default:
-         fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
-         break;
-       }
-    }
+  const char *encoding = f_get_encoding (type);
+
+  generic_emit_char (c, type, stream, quoter, encoding);
 }
 
-/* FIXME:  This is a copy of the same function from c-exp.y.  It should
-   be replaced with a true F77version. */
+/* Implementation of la_printchar.  */
 
 static void
-f_printchar (c, stream)
-     int c;
-     FILE *stream;
+f_printchar (int c, struct type *type, struct ui_file *stream)
 {
   fputs_filtered ("'", stream);
-  emit_char (c, stream, '\'');
+  LA_EMIT_CHAR (c, type, stream, '\'');
   fputs_filtered ("'", stream);
 }
 
@@ -156,816 +101,705 @@ f_printchar (c, stream)
    are printed as appropriate.  Print ellipses at the end if we
    had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
    FIXME:  This is a copy of the same function from c-exp.y.  It should
-   be replaced with a true F77 version. */
+   be replaced with a true F77 version.  */
 
 static void
-f_printstr (stream, string, length, force_ellipses)
-     FILE *stream;
-     char *string;
-     unsigned int length;
-     int force_ellipses;
+f_printstr (struct ui_file *stream, struct type *type, const gdb_byte *string,
+           unsigned int length, const char *encoding, int force_ellipses,
+           const struct value_print_options *options)
 {
-  register unsigned int i;
-  unsigned int things_printed = 0;
-  int in_quotes = 0;
-  int need_comma = 0;
-  extern int inspect_it;
-  extern int repeat_count_threshold;
-  extern int print_max;
-  
-  if (length == 0)
+  const char *type_encoding = f_get_encoding (type);
+
+  if (TYPE_LENGTH (type) == 4)
+    fputs_filtered ("4_", stream);
+
+  if (!encoding || !*encoding)
+    encoding = type_encoding;
+
+  generic_printstr (stream, type, string, length, encoding,
+                   force_ellipses, '\'', 0, options);
+}
+\f
+
+/* Table of operators and their precedences for printing expressions.  */
+
+static const struct op_print f_op_print_tab[] =
+{
+  {"+", BINOP_ADD, PREC_ADD, 0},
+  {"+", UNOP_PLUS, PREC_PREFIX, 0},
+  {"-", BINOP_SUB, PREC_ADD, 0},
+  {"-", UNOP_NEG, PREC_PREFIX, 0},
+  {"*", BINOP_MUL, PREC_MUL, 0},
+  {"/", BINOP_DIV, PREC_MUL, 0},
+  {"DIV", BINOP_INTDIV, PREC_MUL, 0},
+  {"MOD", BINOP_REM, PREC_MUL, 0},
+  {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
+  {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
+  {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
+  {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
+  {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
+  {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
+  {".LE.", BINOP_LEQ, PREC_ORDER, 0},
+  {".GE.", BINOP_GEQ, PREC_ORDER, 0},
+  {".GT.", BINOP_GTR, PREC_ORDER, 0},
+  {".LT.", BINOP_LESS, PREC_ORDER, 0},
+  {"**", UNOP_IND, PREC_PREFIX, 0},
+  {"@", BINOP_REPEAT, PREC_REPEAT, 0},
+  {NULL, OP_NULL, PREC_REPEAT, 0}
+};
+\f
+enum f_primitive_types {
+  f_primitive_type_character,
+  f_primitive_type_logical,
+  f_primitive_type_logical_s1,
+  f_primitive_type_logical_s2,
+  f_primitive_type_logical_s8,
+  f_primitive_type_integer,
+  f_primitive_type_integer_s2,
+  f_primitive_type_real,
+  f_primitive_type_real_s8,
+  f_primitive_type_real_s16,
+  f_primitive_type_complex_s8,
+  f_primitive_type_complex_s16,
+  f_primitive_type_void,
+  nr_f_primitive_types
+};
+
+static void
+f_language_arch_info (struct gdbarch *gdbarch,
+                     struct language_arch_info *lai)
+{
+  const struct builtin_f_type *builtin = builtin_f_type (gdbarch);
+
+  lai->string_char_type = builtin->builtin_character;
+  lai->primitive_type_vector
+    = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1,
+                              struct type *);
+
+  lai->primitive_type_vector [f_primitive_type_character]
+    = builtin->builtin_character;
+  lai->primitive_type_vector [f_primitive_type_logical]
+    = builtin->builtin_logical;
+  lai->primitive_type_vector [f_primitive_type_logical_s1]
+    = builtin->builtin_logical_s1;
+  lai->primitive_type_vector [f_primitive_type_logical_s2]
+    = builtin->builtin_logical_s2;
+  lai->primitive_type_vector [f_primitive_type_logical_s8]
+    = builtin->builtin_logical_s8;
+  lai->primitive_type_vector [f_primitive_type_real]
+    = builtin->builtin_real;
+  lai->primitive_type_vector [f_primitive_type_real_s8]
+    = builtin->builtin_real_s8;
+  lai->primitive_type_vector [f_primitive_type_real_s16]
+    = builtin->builtin_real_s16;
+  lai->primitive_type_vector [f_primitive_type_complex_s8]
+    = builtin->builtin_complex_s8;
+  lai->primitive_type_vector [f_primitive_type_complex_s16]
+    = builtin->builtin_complex_s16;
+  lai->primitive_type_vector [f_primitive_type_void]
+    = builtin->builtin_void;
+
+  lai->bool_type_symbol = "logical";
+  lai->bool_type_default = builtin->builtin_logical_s2;
+}
+
+/* Remove the modules separator :: from the default break list.  */
+
+static const char *
+f_word_break_characters (void)
+{
+  static char *retval;
+
+  if (!retval)
     {
-      fputs_filtered ("''", stdout);
-      return;
+      char *s;
+
+      retval = xstrdup (default_word_break_characters ());
+      s = strchr (retval, ':');
+      if (s)
+       {
+         char *last_char = &s[strlen (s) - 1];
+
+         *s = *last_char;
+         *last_char = 0;
+       }
     }
-  
-  for (i = 0; i < length && things_printed < print_max; ++i)
+  return retval;
+}
+
+/* Consider the modules separator :: as a valid symbol name character
+   class.  */
+
+static void
+f_collect_symbol_completion_matches (completion_tracker &tracker,
+                                    complete_symbol_mode mode,
+                                    symbol_name_match_type compare_name,
+                                    const char *text, const char *word,
+                                    enum type_code code)
+{
+  default_collect_symbol_completion_matches_break_on (tracker, mode,
+                                                     compare_name,
+                                                     text, word, ":", code);
+}
+
+/* Special expression evaluation cases for Fortran.  */
+
+static struct value *
+evaluate_subexp_f (struct type *expect_type, struct expression *exp,
+                  int *pos, enum noside noside)
+{
+  struct value *arg1 = NULL, *arg2 = NULL;
+  enum exp_opcode op;
+  int pc;
+  struct type *type;
+
+  pc = *pos;
+  *pos += 1;
+  op = exp->elts[pc].opcode;
+
+  switch (op)
     {
-      /* Position of the character we are examining
-        to see whether it is repeated.  */
-      unsigned int rep1;
-      /* Number of repetitions we have detected so far.  */
-      unsigned int reps;
-      
-      QUIT;
-      
-      if (need_comma)
+    default:
+      *pos -= 1;
+      return evaluate_subexp_standard (expect_type, exp, pos, noside);
+
+    case UNOP_ABS:
+      arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
+      if (noside == EVAL_SKIP)
+       return eval_skip_value (exp);
+      type = value_type (arg1);
+      switch (TYPE_CODE (type))
        {
-         fputs_filtered (", ", stream);
-         need_comma = 0;
+       case TYPE_CODE_FLT:
+         {
+           double d
+             = fabs (target_float_to_host_double (value_contents (arg1),
+                                                  value_type (arg1)));
+           return value_from_host_double (type, d);
+         }
+       case TYPE_CODE_INT:
+         {
+           LONGEST l = value_as_long (arg1);
+           l = llabs (l);
+           return value_from_longest (type, l);
+         }
        }
-      
-      rep1 = i + 1;
-      reps = 1;
-      while (rep1 < length && string[rep1] == string[i])
+      error (_("ABS of type %s not supported"), TYPE_SAFE_NAME (type));
+
+    case BINOP_MOD:
+      arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
+      arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside);
+      if (noside == EVAL_SKIP)
+       return eval_skip_value (exp);
+      type = value_type (arg1);
+      if (TYPE_CODE (type) != TYPE_CODE (value_type (arg2)))
+       error (_("non-matching types for parameters to MOD ()"));
+      switch (TYPE_CODE (type))
        {
-         ++rep1;
-         ++reps;
+       case TYPE_CODE_FLT:
+         {
+           double d1
+             = target_float_to_host_double (value_contents (arg1),
+                                            value_type (arg1));
+           double d2
+             = target_float_to_host_double (value_contents (arg2),
+                                            value_type (arg2));
+           double d3 = fmod (d1, d2);
+           return value_from_host_double (type, d3);
+         }
+       case TYPE_CODE_INT:
+         {
+           LONGEST v1 = value_as_long (arg1);
+           LONGEST v2 = value_as_long (arg2);
+           if (v2 == 0)
+             error (_("calling MOD (N, 0) is undefined"));
+           LONGEST v3 = v1 - (v1 / v2) * v2;
+           return value_from_longest (value_type (arg1), v3);
+         }
        }
-      
-      if (reps > repeat_count_threshold)
-       {
-         if (in_quotes)
+      error (_("MOD of type %s not supported"), TYPE_SAFE_NAME (type));
+
+    case UNOP_FORTRAN_CEILING:
+      {
+       arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
+       if (noside == EVAL_SKIP)
+         return eval_skip_value (exp);
+       type = value_type (arg1);
+       if (TYPE_CODE (type) != TYPE_CODE_FLT)
+         error (_("argument to CEILING must be of type float"));
+       double val
+         = target_float_to_host_double (value_contents (arg1),
+                                        value_type (arg1));
+       val = ceil (val);
+       return value_from_host_double (type, val);
+      }
+
+    case UNOP_FORTRAN_FLOOR:
+      {
+       arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
+       if (noside == EVAL_SKIP)
+         return eval_skip_value (exp);
+       type = value_type (arg1);
+       if (TYPE_CODE (type) != TYPE_CODE_FLT)
+         error (_("argument to FLOOR must be of type float"));
+       double val
+         = target_float_to_host_double (value_contents (arg1),
+                                        value_type (arg1));
+       val = floor (val);
+       return value_from_host_double (type, val);
+      }
+
+    case BINOP_FORTRAN_MODULO:
+      {
+       arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
+       arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside);
+       if (noside == EVAL_SKIP)
+         return eval_skip_value (exp);
+       type = value_type (arg1);
+       if (TYPE_CODE (type) != TYPE_CODE (value_type (arg2)))
+         error (_("non-matching types for parameters to MODULO ()"));
+        /* MODULO(A, P) = A - FLOOR (A / P) * P */
+       switch (TYPE_CODE (type))
+         {
+         case TYPE_CODE_INT:
            {
-             if (inspect_it)
-               fputs_filtered ("\\', ", stream);
-             else
-               fputs_filtered ("', ", stream);
-             in_quotes = 0;
+             LONGEST a = value_as_long (arg1);
+             LONGEST p = value_as_long (arg2);
+             LONGEST result = a - (a / p) * p;
+             if (result != 0 && (a < 0) != (p < 0))
+               result += p;
+             return value_from_longest (value_type (arg1), result);
            }
-         f_printchar (string[i], stream);
-         fprintf_filtered (stream, " <repeats %u times>", reps);
-         i = rep1 - 1;
-         things_printed += repeat_count_threshold;
-         need_comma = 1;
-       }
-      else
-       {
-         if (!in_quotes)
+         case TYPE_CODE_FLT:
            {
-             if (inspect_it)
-               fputs_filtered ("\\'", stream);
-             else
-               fputs_filtered ("'", stream);
-             in_quotes = 1;
+             double a
+               = target_float_to_host_double (value_contents (arg1),
+                                              value_type (arg1));
+             double p
+               = target_float_to_host_double (value_contents (arg2),
+                                              value_type (arg2));
+             double result = fmod (a, p);
+             if (result != 0 && (a < 0.0) != (p < 0.0))
+               result += p;
+             return value_from_host_double (type, result);
            }
-         emit_char (string[i], stream, '"');
-         ++things_printed;
-       }
-    }
-  
-  /* Terminate the quotes if necessary.  */
-  if (in_quotes)
-    {
-      if (inspect_it)
-       fputs_filtered ("\\'", stream);
-      else
-       fputs_filtered ("'", stream);
+         }
+       error (_("MODULO of type %s not supported"), TYPE_SAFE_NAME (type));
+      }
+
+    case BINOP_FORTRAN_CMPLX:
+      arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
+      arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside);
+      if (noside == EVAL_SKIP)
+       return eval_skip_value (exp);
+      type = builtin_f_type(exp->gdbarch)->builtin_complex_s16;
+      return value_literal_complex (arg1, arg2, type);
+
+    case UNOP_FORTRAN_KIND:
+      arg1 = evaluate_subexp (NULL, exp, pos, EVAL_AVOID_SIDE_EFFECTS);
+      type = value_type (arg1);
+
+      switch (TYPE_CODE (type))
+        {
+          case TYPE_CODE_STRUCT:
+          case TYPE_CODE_UNION:
+          case TYPE_CODE_MODULE:
+          case TYPE_CODE_FUNC:
+            error (_("argument to kind must be an intrinsic type"));
+        }
+
+      if (!TYPE_TARGET_TYPE (type))
+        return value_from_longest (builtin_type (exp->gdbarch)->builtin_int,
+                                  TYPE_LENGTH (type));
+      return value_from_longest (builtin_type (exp->gdbarch)->builtin_int,
+                                TYPE_LENGTH (TYPE_TARGET_TYPE(type)));
     }
-  
-  if (force_ellipses || i < length)
-    fputs_filtered ("...", stream);
+
+  /* Should be unreachable.  */
+  return nullptr;
 }
 
-/* FIXME:  This is a copy of c_create_fundamental_type(), before
-   all the non-C types were stripped from it.  Needs to be fixed
-   by an experienced F77 programmer. */
+/* Return true if TYPE is a string.  */
 
-static struct type *
-f_create_fundamental_type (objfile, typeid)
-     struct objfile *objfile;
-     int typeid;
+static bool
+f_is_string_type_p (struct type *type)
 {
-  register struct type *type = NULL;
-  
-  switch (typeid)
-    {
-    case FT_VOID:
-      type = init_type (TYPE_CODE_VOID,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       0, "VOID", objfile);
-      break;
-    case FT_BOOLEAN:
-      type = init_type (TYPE_CODE_BOOL,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "boolean", objfile);
-      break;
-    case FT_STRING:
-      type = init_type (TYPE_CODE_STRING,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       0, "string", objfile);
-      break;
-    case FT_CHAR:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       0, "character", objfile);
-      break;
-    case FT_SIGNED_CHAR:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       0, "integer*1", objfile);
-      break;
-    case FT_UNSIGNED_CHAR:
-      type = init_type (TYPE_CODE_BOOL,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "logical*1", objfile);
-      break;
-    case FT_SHORT:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_SHORT_BIT / TARGET_CHAR_BIT,
-                       0, "integer*2", objfile);
-      break;
-    case FT_SIGNED_SHORT:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_SHORT_BIT / TARGET_CHAR_BIT,
-                       0, "short", objfile);   /* FIXME-fnf */
-      break;
-    case FT_UNSIGNED_SHORT:
-      type = init_type (TYPE_CODE_BOOL,
-                       TARGET_SHORT_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "logical*2", objfile);
-      break;
-    case FT_INTEGER:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_INT_BIT / TARGET_CHAR_BIT,
-                       0, "integer*4", objfile);
-      break;
-    case FT_SIGNED_INTEGER:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_INT_BIT / TARGET_CHAR_BIT,
-                       0, "integer", objfile); /* FIXME -fnf */
-      break;
-    case FT_UNSIGNED_INTEGER:
-      type = init_type (TYPE_CODE_BOOL, 
-                       TARGET_INT_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "logical*4", objfile);
-      break;
-    case FT_FIXED_DECIMAL:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_INT_BIT / TARGET_CHAR_BIT,
-                       0, "fixed decimal", objfile);
-      break;
-    case FT_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_BIT / TARGET_CHAR_BIT,
-                       0, "long", objfile);
-      break;
-    case FT_SIGNED_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_BIT / TARGET_CHAR_BIT,
-                       0, "long", objfile); /* FIXME -fnf */
-      break;
-    case FT_UNSIGNED_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
-      break;
-    case FT_LONG_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
-                       0, "long long", objfile);
-      break;
-    case FT_SIGNED_LONG_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
-                       0, "signed long long", objfile);
-      break;
-    case FT_UNSIGNED_LONG_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
-      break;
-    case FT_FLOAT:
-      type = init_type (TYPE_CODE_FLT,
-                       TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
-                       0, "real", objfile);
-      break;
-    case FT_DBL_PREC_FLOAT:
-      type = init_type (TYPE_CODE_FLT,
-                       TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
-                       0, "real*8", objfile);
-      break;
-    case FT_FLOAT_DECIMAL:
-      type = init_type (TYPE_CODE_FLT,
-                       TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
-                       0, "floating decimal", objfile);
-      break;
-    case FT_EXT_PREC_FLOAT:
-      type = init_type (TYPE_CODE_FLT,
-                       TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
-                       0, "real*16", objfile);
-      break;
-    case FT_COMPLEX:
-      type = init_type (TYPE_CODE_COMPLEX,
-                       2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
-                       0, "complex*8", objfile);
-      TYPE_TARGET_TYPE (type) = builtin_type_f_real;
-      break;
-    case FT_DBL_PREC_COMPLEX:
-      type = init_type (TYPE_CODE_COMPLEX,
-                       2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
-                       0, "complex*16", objfile);
-      TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
-      break;
-    case FT_EXT_PREC_COMPLEX:
-      type = init_type (TYPE_CODE_COMPLEX,
-                       2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
-                       0, "complex*32", objfile);
-      TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
-      break;
-    default:
-      /* FIXME:  For now, if we are asked to produce a type not in this
-        language, create the equivalent of a C integer type with the
-        name "<?type?>".  When all the dust settles from the type
-        reconstruction work, this should probably become an error. */
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_INT_BIT / TARGET_CHAR_BIT,
-                       0, "<?type?>", objfile);
-      warning ("internal error: no F77 fundamental type %d", typeid);
-      break;
-    }
-  return (type);
+  type = check_typedef (type);
+  return (TYPE_CODE (type) == TYPE_CODE_STRING
+         || (TYPE_CODE (type) == TYPE_CODE_ARRAY
+             && TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CHAR));
 }
 
-\f
-/* Table of operators and their precedences for printing expressions.  */
+/* Special expression lengths for Fortran.  */
 
-static const struct op_print f_op_print_tab[] = {
-  { "+",     BINOP_ADD, PREC_ADD, 0 },
-  { "+",     UNOP_PLUS, PREC_PREFIX, 0 },
-  { "-",     BINOP_SUB, PREC_ADD, 0 },
-  { "-",     UNOP_NEG, PREC_PREFIX, 0 },
-  { "*",     BINOP_MUL, PREC_MUL, 0 },
-  { "/",     BINOP_DIV, PREC_MUL, 0 },
-  { "DIV",   BINOP_INTDIV, PREC_MUL, 0 },
-  { "MOD",   BINOP_REM, PREC_MUL, 0 },
-  { "=",     BINOP_ASSIGN, PREC_ASSIGN, 1 },
-  { ".OR.",  BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0 },
-  { ".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0 },
-  { ".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0 },
-  { ".EQ.",  BINOP_EQUAL, PREC_EQUAL, 0 },
-  { ".NE.",  BINOP_NOTEQUAL, PREC_EQUAL, 0 },
-  { ".LE.",  BINOP_LEQ, PREC_ORDER, 0 },
-  { ".GE.",  BINOP_GEQ, PREC_ORDER, 0 },
-  { ".GT.",  BINOP_GTR, PREC_ORDER, 0 },
-  { ".LT.",  BINOP_LESS, PREC_ORDER, 0 },
-  { "**",    UNOP_IND, PREC_PREFIX, 0 },
-  { "@",     BINOP_REPEAT, PREC_REPEAT, 0 },
-  { NULL,    0, 0, 0 }
-};
-\f
-struct type ** CONST_PTR (f_builtin_types[]) = 
+static void
+operator_length_f (const struct expression *exp, int pc, int *oplenp,
+                  int *argsp)
 {
-  &builtin_type_f_character,
-  &builtin_type_f_logical,
-  &builtin_type_f_logical_s1,
-  &builtin_type_f_logical_s2,
-  &builtin_type_f_integer,
-  &builtin_type_f_integer_s2,
-  &builtin_type_f_real,
-  &builtin_type_f_real_s8,
-  &builtin_type_f_real_s16,
-  &builtin_type_f_complex_s8,
-  &builtin_type_f_complex_s16,
-#if 0
-  &builtin_type_f_complex_s32,
-#endif
-  &builtin_type_f_void,
-  0
-};
+  int oplen = 1;
+  int args = 0;
 
-/* This is declared in c-lang.h but it is silly to import that file for what
-   is already just a hack. */
-extern int
-c_value_print PARAMS ((struct value *, GDB_FILE *, int, enum val_prettyprint));
+  switch (exp->elts[pc - 1].opcode)
+    {
+    default:
+      operator_length_standard (exp, pc, oplenp, argsp);
+      return;
 
-const struct language_defn f_language_defn = {
-  "fortran",
-  language_fortran,
-  f_builtin_types,
-  range_check_on,
-  type_check_on,
-  f_parse,                     /* parser */
-  f_error,                     /* parser error function */
-  evaluate_subexp_standard,
-  f_printchar,                 /* Print character constant */
-  f_printstr,                  /* function to print string constant */
-  f_create_fundamental_type,   /* Create fundamental type in this language */
-  f_print_type,                        /* Print a type using appropriate syntax */
-  f_val_print,                 /* Print a value using appropriate syntax */
-  c_value_print,  /* FIXME */
-  {"",      "",   "",   ""},   /* Binary format info */
-  {"0%o",  "0",   "o", ""},    /* Octal format info */
-  {"%d",   "",    "d", ""},    /* Decimal format info */
-  {"0x%x", "0x",  "x", ""},    /* Hex format info */
-  f_op_print_tab,              /* expression operators for printing */
-  0,                           /* arrays are first-class (not c-style) */
-  1,                           /* String lower bound */
-  &builtin_type_f_character,   /* Type of string elements */ 
-  LANG_MAGIC
-  };
+    case UNOP_FORTRAN_KIND:
+    case UNOP_FORTRAN_FLOOR:
+    case UNOP_FORTRAN_CEILING:
+      oplen = 1;
+      args = 1;
+      break;
 
-void
-_initialize_f_language ()
-{
-  builtin_type_f_void =
-    init_type (TYPE_CODE_VOID, 1,
-              0,
-              "VOID", (struct objfile *) NULL);
-  
-  builtin_type_f_character =
-    init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-              0,
-              "character", (struct objfile *) NULL);
-  
-  builtin_type_f_logical_s1 =
-    init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-              TYPE_FLAG_UNSIGNED,
-              "logical*1", (struct objfile *) NULL);
-  
-  builtin_type_f_integer_s2 =
-    init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
-              0,
-              "integer*2", (struct objfile *) NULL);
-  
-  builtin_type_f_logical_s2 =
-    init_type (TYPE_CODE_BOOL, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
-              TYPE_FLAG_UNSIGNED,
-              "logical*2", (struct objfile *) NULL);
-  
-  builtin_type_f_integer =
-    init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
-              0,
-              "integer", (struct objfile *) NULL);
-  
-  builtin_type_f_logical =
-    init_type (TYPE_CODE_BOOL, TARGET_INT_BIT / TARGET_CHAR_BIT,
-              TYPE_FLAG_UNSIGNED,
-              "logical*4", (struct objfile *) NULL);
-  
-  builtin_type_f_real =
-    init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
-              0,
-              "real", (struct objfile *) NULL);
-  
-  builtin_type_f_real_s8 =
-    init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
-              0,
-              "real*8", (struct objfile *) NULL);
-  
-  builtin_type_f_real_s16 =
-    init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
-              0,
-              "real*16", (struct objfile *) NULL);
-  
-  builtin_type_f_complex_s8 =
-    init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
-              0,
-              "complex*8", (struct objfile *) NULL);
-  TYPE_TARGET_TYPE (builtin_type_f_complex_s8) = builtin_type_f_real;
-  
-  builtin_type_f_complex_s16 =
-    init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
-              0,
-              "complex*16", (struct objfile *) NULL);
-  TYPE_TARGET_TYPE (builtin_type_f_complex_s16) = builtin_type_f_real_s8;
-  
-  /* We have a new size == 4 double floats for the
-     complex*32 data type */
-  
-  builtin_type_f_complex_s32 = 
-    init_type (TYPE_CODE_COMPLEX, 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
-              0,
-              "complex*32", (struct objfile *) NULL);
-  TYPE_TARGET_TYPE (builtin_type_f_complex_s32) = builtin_type_f_real_s16;
-
-  builtin_type_string =
-    init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-              0,
-              "character string", (struct objfile *) NULL); 
-  
-  add_language (&f_language_defn);
-}
+    case BINOP_FORTRAN_CMPLX:
+    case BINOP_FORTRAN_MODULO:
+      oplen = 1;
+      args = 2;
+      break;
+    }
 
-#if 0
-static SAVED_BF_PTR
-allocate_saved_bf_node()
-{
-  SAVED_BF_PTR new;
-  
-  new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
-  return(new);
+  *oplenp = oplen;
+  *argsp = args;
 }
 
-static SAVED_FUNCTION *
-allocate_saved_function_node()
+/* Helper for PRINT_SUBEXP_F.  Arguments are as for PRINT_SUBEXP_F, except
+   the extra argument NAME which is the text that should be printed as the
+   name of this operation.  */
+
+static void
+print_unop_subexp_f (struct expression *exp, int *pos,
+                    struct ui_file *stream, enum precedence prec,
+                    const char *name)
 {
-  SAVED_FUNCTION *new;
-  
-  new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
-  return(new);
+  (*pos)++;
+  fprintf_filtered (stream, "%s(", name);
+  print_subexp (exp, pos, stream, PREC_SUFFIX);
+  fputs_filtered (")", stream);
 }
 
-static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node()
+/* Helper for PRINT_SUBEXP_F.  Arguments are as for PRINT_SUBEXP_F, except
+   the extra argument NAME which is the text that should be printed as the
+   name of this operation.  */
+
+static void
+print_binop_subexp_f (struct expression *exp, int *pos,
+                     struct ui_file *stream, enum precedence prec,
+                     const char *name)
 {
-  SAVED_F77_COMMON_PTR new;
-  
-  new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
-  return(new);
+  (*pos)++;
+  fprintf_filtered (stream, "%s(", name);
+  print_subexp (exp, pos, stream, PREC_SUFFIX);
+  fputs_filtered (",", stream);
+  print_subexp (exp, pos, stream, PREC_SUFFIX);
+  fputs_filtered (")", stream);
 }
 
-static COMMON_ENTRY_PTR allocate_common_entry_node()
+/* Special expression printing for Fortran.  */
+
+static void
+print_subexp_f (struct expression *exp, int *pos,
+               struct ui_file *stream, enum precedence prec)
 {
-  COMMON_ENTRY_PTR new;
-  
-  new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
-  return(new);
-}
-#endif
+  int pc = *pos;
+  enum exp_opcode op = exp->elts[pc].opcode;
 
-SAVED_F77_COMMON_PTR head_common_list=NULL;     /* Ptr to 1st saved COMMON  */
-SAVED_F77_COMMON_PTR tail_common_list=NULL;     /* Ptr to last saved COMMON  */
-SAVED_F77_COMMON_PTR current_common=NULL;       /* Ptr to current COMMON */
+  switch (op)
+    {
+    default:
+      print_subexp_standard (exp, pos, stream, prec);
+      return;
 
-#if 0
-static SAVED_BF_PTR saved_bf_list=NULL;          /* Ptr to (.bf,function) 
-                                                    list*/
-static SAVED_BF_PTR saved_bf_list_end=NULL;      /* Ptr to above list's end */
-static SAVED_BF_PTR current_head_bf_list=NULL;   /* Current head of above list
-                                                 */
+    case UNOP_FORTRAN_KIND:
+      print_unop_subexp_f (exp, pos, stream, prec, "KIND");
+      return;
 
-static SAVED_BF_PTR tmp_bf_ptr;                  /* Generic temporary for use 
-                                                    in macros */ 
+    case UNOP_FORTRAN_FLOOR:
+      print_unop_subexp_f (exp, pos, stream, prec, "FLOOR");
+      return;
 
-/* The following function simply enters a given common block onto 
-   the global common block chain */
+    case UNOP_FORTRAN_CEILING:
+      print_unop_subexp_f (exp, pos, stream, prec, "CEILING");
+      return;
 
-static void
-add_common_block(name,offset,secnum,func_stab)
-     char *name;
-     CORE_ADDR offset;
-     int secnum;
-     char *func_stab;
-{
-  SAVED_F77_COMMON_PTR tmp;
-  char *c,*local_copy_func_stab; 
-  
-  /* If the COMMON block we are trying to add has a blank 
-     name (i.e. "#BLNK_COM") then we set it to __BLANK
-     because the darn "#" character makes GDB's input 
-     parser have fits. */ 
-  
-  
-  if (STREQ(name,BLANK_COMMON_NAME_ORIGINAL) ||
-      STREQ(name,BLANK_COMMON_NAME_MF77))
-    {
-      
-      free(name);
-      name = alloca(strlen(BLANK_COMMON_NAME_LOCAL) + 1); 
-      strcpy(name,BLANK_COMMON_NAME_LOCAL); 
-    }
-  
-  tmp = allocate_saved_f77_common_node();
-  
-  local_copy_func_stab = xmalloc (strlen(func_stab) + 1);
-  strcpy(local_copy_func_stab,func_stab); 
-  
-  tmp->name = xmalloc(strlen(name) + 1);
-  
-  /* local_copy_func_stab is a stabstring, let us first extract the 
-     function name from the stab by NULLing out the ':' character. */ 
-  
-  
-  c = NULL; 
-  c = strchr(local_copy_func_stab,':');
-  
-  if (c)
-    *c = '\0';
-  else
-    error("Malformed function STAB found in add_common_block()");
-  
-  
-  tmp->owning_function = xmalloc (strlen(local_copy_func_stab) + 1); 
-  
-  strcpy(tmp->owning_function,local_copy_func_stab); 
-  
-  strcpy(tmp->name,name);
-  tmp->offset = offset; 
-  tmp->next = NULL;
-  tmp->entries = NULL;
-  tmp->secnum = secnum; 
-  
-  current_common = tmp;
-  
-  if (head_common_list == NULL)
-    {
-      head_common_list = tail_common_list = tmp;
-    }
-  else
-    {
-      tail_common_list->next = tmp; 
-      tail_common_list = tmp;
+    case BINOP_FORTRAN_CMPLX:
+      print_binop_subexp_f (exp, pos, stream, prec, "CMPLX");
+      return;
+
+    case BINOP_FORTRAN_MODULO:
+      print_binop_subexp_f (exp, pos, stream, prec, "MODULO");
+      return;
     }
 }
-#endif
 
-/* The following function simply enters a given common entry onto 
-   the "current_common" block that has been saved away. */ 
+/* Special expression names for Fortran.  */
 
-#if 0
-static void
-add_common_entry(entry_sym_ptr)
-     struct symbol *entry_sym_ptr; 
+static const char *
+op_name_f (enum exp_opcode opcode)
 {
-  COMMON_ENTRY_PTR tmp;
-  
-  
-  
-  /* The order of this list is important, since 
-     we expect the entries to appear in decl.
-     order when we later issue "info common" calls */ 
-  
-  tmp = allocate_common_entry_node();
-  
-  tmp->next = NULL;
-  tmp->symbol = entry_sym_ptr;
-  
-  if (current_common == NULL)
-    error("Attempt to add COMMON entry with no block open!");
-  else         
+  switch (opcode)
     {
-      if (current_common->entries == NULL)
-       {
-         current_common->entries = tmp;
-         current_common->end_of_entries = tmp; 
-       }
-      else
-       {
-         current_common->end_of_entries->next = tmp; 
-         current_common->end_of_entries = tmp; 
-       }
+    default:
+      return op_name_standard (opcode);
+
+#define OP(name)       \
+    case name:         \
+      return #name ;
+#include "fortran-operator.def"
+#undef OP
     }
 }
-#endif
 
-/* This routine finds the first encountred COMMON block named "name" */ 
+/* Special expression dumping for Fortran.  */
 
-#if 0
-static SAVED_F77_COMMON_PTR
-find_first_common_named(name)
-     char *name; 
+static int
+dump_subexp_body_f (struct expression *exp,
+                   struct ui_file *stream, int elt)
 {
-  
-  SAVED_F77_COMMON_PTR tmp;
-  
-  tmp = head_common_list;
-  
-  while (tmp != NULL)
+  int opcode = exp->elts[elt].opcode;
+  int oplen, nargs, i;
+
+  switch (opcode)
     {
-      if (STREQ(tmp->name,name))
-       return(tmp);
-      else
-       tmp = tmp->next;
+    default:
+      return dump_subexp_body_standard (exp, stream, elt);
+
+    case UNOP_FORTRAN_KIND:
+    case UNOP_FORTRAN_FLOOR:
+    case UNOP_FORTRAN_CEILING:
+    case BINOP_FORTRAN_CMPLX:
+    case BINOP_FORTRAN_MODULO:
+      operator_length_f (exp, (elt + 1), &oplen, &nargs);
+      break;
     }
-  return(NULL); 
+
+  elt += oplen;
+  for (i = 0; i < nargs; i += 1)
+    elt = dump_subexp (exp, stream, elt);
+
+  return elt;
 }
-#endif
 
-/* This routine finds the first encountred COMMON block named "name" 
-   that belongs to function funcname */ 
+/* Special expression checking for Fortran.  */
 
-SAVED_F77_COMMON_PTR find_common_for_function(name, funcname)
-     char *name;
-     char *funcname; 
+static int
+operator_check_f (struct expression *exp, int pos,
+                 int (*objfile_func) (struct objfile *objfile,
+                                      void *data),
+                 void *data)
 {
-  
-  SAVED_F77_COMMON_PTR tmp;
-  
-  tmp = head_common_list;
-  
-  while (tmp != NULL)
+  const union exp_element *const elts = exp->elts;
+
+  switch (elts[pos].opcode)
     {
-      if (STREQ(tmp->name,name) && STREQ(tmp->owning_function,funcname))
-       return(tmp);
-      else
-       tmp = tmp->next;
+    case UNOP_FORTRAN_KIND:
+    case UNOP_FORTRAN_FLOOR:
+    case UNOP_FORTRAN_CEILING:
+    case BINOP_FORTRAN_CMPLX:
+    case BINOP_FORTRAN_MODULO:
+      /* Any references to objfiles are held in the arguments to this
+        expression, not within the expression itself, so no additional
+        checking is required here, the outer expression iteration code
+        will take care of checking each argument.  */
+      break;
+
+    default:
+      return operator_check_standard (exp, pos, objfile_func, data);
     }
-  return(NULL); 
+
+  return 0;
 }
 
+static const char *f_extensions[] =
+{
+  ".f", ".F", ".for", ".FOR", ".ftn", ".FTN", ".fpp", ".FPP",
+  ".f90", ".F90", ".f95", ".F95", ".f03", ".F03", ".f08", ".F08",
+  NULL
+};
 
-#if 0
+/* Expression processing for Fortran.  */
+static const struct exp_descriptor exp_descriptor_f =
+{
+  print_subexp_f,
+  operator_length_f,
+  operator_check_f,
+  op_name_f,
+  dump_subexp_body_f,
+  evaluate_subexp_f
+};
 
-/* The following function is called to patch up the offsets 
-   for the statics contained in the COMMON block named
-   "name."  */ 
+extern const struct language_defn f_language_defn =
+{
+  "fortran",
+  "Fortran",
+  language_fortran,
+  range_check_on,
+  case_sensitive_off,
+  array_column_major,
+  macro_expansion_no,
+  f_extensions,
+  &exp_descriptor_f,
+  f_parse,                     /* parser */
+  null_post_parser,
+  f_printchar,                 /* Print character constant */
+  f_printstr,                  /* function to print string constant */
+  f_emit_char,                 /* Function to print a single character */
+  f_print_type,                        /* Print a type using appropriate syntax */
+  f_print_typedef,             /* Print a typedef using appropriate syntax */
+  f_val_print,                 /* Print a value using appropriate syntax */
+  c_value_print,               /* FIXME */
+  default_read_var_value,      /* la_read_var_value */
+  NULL,                                /* Language specific skip_trampoline */
+  NULL,                        /* name_of_this */
+  false,                       /* la_store_sym_names_in_linkage_form_p */
+  cp_lookup_symbol_nonlocal,   /* lookup_symbol_nonlocal */
+  basic_lookup_transparent_type,/* lookup_transparent_type */
+
+  /* We could support demangling here to provide module namespaces
+     also for inferiors with only minimal symbol table (ELF symbols).
+     Just the mangling standard is not standardized across compilers
+     and there is no DW_AT_producer available for inferiors with only
+     the ELF symbols to check the mangling kind.  */
+  NULL,                                /* Language specific symbol demangler */
+  NULL,
+  NULL,                                /* Language specific
+                                  class_name_from_physname */
+  f_op_print_tab,              /* expression operators for printing */
+  0,                           /* arrays are first-class (not c-style) */
+  1,                           /* String lower bound */
+  f_word_break_characters,
+  f_collect_symbol_completion_matches,
+  f_language_arch_info,
+  default_print_array_index,
+  default_pass_by_reference,
+  c_watch_location_expression,
+  cp_get_symbol_name_matcher,  /* la_get_symbol_name_matcher */
+  iterate_over_symbols,
+  cp_search_name_hash,
+  &default_varobj_ops,
+  NULL,
+  NULL,
+  f_is_string_type_p,
+  "(...)"                      /* la_struct_too_deep_ellipsis */
+};
 
-static void
-patch_common_entries (blk, offset, secnum)
-     SAVED_F77_COMMON_PTR blk;
-     CORE_ADDR offset;
-     int secnum;
+static void *
+build_fortran_types (struct gdbarch *gdbarch)
 {
-  COMMON_ENTRY_PTR entry;
-  
-  blk->offset = offset;  /* Keep this around for future use. */ 
-  
-  entry = blk->entries;
-  
-  while (entry != NULL)
-    {
-      SYMBOL_VALUE (entry->symbol) += offset; 
-      SYMBOL_SECTION (entry->symbol) = secnum;
-      
-      entry = entry->next;
-    }
-  blk->secnum = secnum; 
+  struct builtin_f_type *builtin_f_type
+    = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type);
+
+  builtin_f_type->builtin_void
+    = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void");
+
+  builtin_f_type->builtin_character
+    = arch_type (gdbarch, TYPE_CODE_CHAR, TARGET_CHAR_BIT, "character");
+
+  builtin_f_type->builtin_logical_s1
+    = arch_boolean_type (gdbarch, TARGET_CHAR_BIT, 1, "logical*1");
+
+  builtin_f_type->builtin_integer_s2
+    = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), 0,
+                        "integer*2");
+
+  builtin_f_type->builtin_integer_s8
+    = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), 0,
+                        "integer*8");
+
+  builtin_f_type->builtin_logical_s2
+    = arch_boolean_type (gdbarch, gdbarch_short_bit (gdbarch), 1,
+                        "logical*2");
+
+  builtin_f_type->builtin_logical_s8
+    = arch_boolean_type (gdbarch, gdbarch_long_long_bit (gdbarch), 1,
+                        "logical*8");
+
+  builtin_f_type->builtin_integer
+    = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), 0,
+                        "integer");
+
+  builtin_f_type->builtin_logical
+    = arch_boolean_type (gdbarch, gdbarch_int_bit (gdbarch), 1,
+                        "logical*4");
+
+  builtin_f_type->builtin_real
+    = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch),
+                      "real", gdbarch_float_format (gdbarch));
+  builtin_f_type->builtin_real_s8
+    = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch),
+                      "real*8", gdbarch_double_format (gdbarch));
+  auto fmt = gdbarch_floatformat_for_type (gdbarch, "real(kind=16)", 128);
+  if (fmt != nullptr)
+    builtin_f_type->builtin_real_s16
+      = arch_float_type (gdbarch, 128, "real*16", fmt);
+  else if (gdbarch_long_double_bit (gdbarch) == 128)
+    builtin_f_type->builtin_real_s16
+      = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch),
+                        "real*16", gdbarch_long_double_format (gdbarch));
+  else
+    builtin_f_type->builtin_real_s16
+      = arch_type (gdbarch, TYPE_CODE_ERROR, 128, "real*16");
+
+  builtin_f_type->builtin_complex_s8
+    = arch_complex_type (gdbarch, "complex*8",
+                        builtin_f_type->builtin_real);
+  builtin_f_type->builtin_complex_s16
+    = arch_complex_type (gdbarch, "complex*16",
+                        builtin_f_type->builtin_real_s8);
+  builtin_f_type->builtin_complex_s32
+    = arch_complex_type (gdbarch, "complex*32",
+                        builtin_f_type->builtin_real_s16);
+
+  return builtin_f_type;
 }
 
-/* Patch all commons named "name" that need patching.Since COMMON
-   blocks occur with relative infrequency, we simply do a linear scan on
-   the name.  Eventually, the best way to do this will be a
-   hashed-lookup.  Secnum is the section number for the .bss section
-   (which is where common data lives). */
+static struct gdbarch_data *f_type_data;
 
-static void
-patch_all_commons_by_name (name, offset, secnum)
-     char *name;
-     CORE_ADDR offset;
-     int secnum;
+const struct builtin_f_type *
+builtin_f_type (struct gdbarch *gdbarch)
 {
-  
-  SAVED_F77_COMMON_PTR tmp;
-  
-  /* For blank common blocks, change the canonical reprsentation 
-     of a blank name */
-  
-  if ((STREQ(name,BLANK_COMMON_NAME_ORIGINAL)) ||
-      (STREQ(name,BLANK_COMMON_NAME_MF77)))
-    {
-      free(name);
-      name = alloca(strlen(BLANK_COMMON_NAME_LOCAL) + 1); 
-      strcpy(name,BLANK_COMMON_NAME_LOCAL); 
-    }
-  
-  tmp = head_common_list;
-  
-  while (tmp != NULL)
-    {
-      if (COMMON_NEEDS_PATCHING(tmp))
-       if (STREQ(tmp->name,name))
-         patch_common_entries(tmp,offset,secnum); 
-      
-      tmp = tmp->next;
-    }   
+  return (const struct builtin_f_type *) gdbarch_data (gdbarch, f_type_data);
 }
-#endif
-
-/* This macro adds the symbol-number for the start of the function 
-   (the symbol number of the .bf) referenced by symnum_fcn to a 
-   list.  This list, in reality should be a FIFO queue but since 
-   #line pragmas sometimes cause line ranges to get messed up 
-   we simply create a linear list.  This list can then be searched 
-   first by a queueing algorithm and upon failure fall back to 
-   a linear scan. */ 
-
-#if 0
-#define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
-  \
-  if (saved_bf_list == NULL) \
-{ \
-    tmp_bf_ptr = allocate_saved_bf_node(); \
-      \
-       tmp_bf_ptr->symnum_bf = (bf_sym); \
-         tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
-           tmp_bf_ptr->next = NULL; \
-             \
-               current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
-                 saved_bf_list_end = tmp_bf_ptr; \
-                 } \
-else \
-{  \
-     tmp_bf_ptr = allocate_saved_bf_node(); \
-       \
-         tmp_bf_ptr->symnum_bf = (bf_sym);  \
-          tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
-            tmp_bf_ptr->next = NULL;  \
-              \
-                saved_bf_list_end->next = tmp_bf_ptr;  \
-                  saved_bf_list_end = tmp_bf_ptr; \
-                  } 
-#endif
-
-/* This function frees the entire (.bf,function) list */ 
-
-#if 0
-static void 
-  clear_bf_list()
+
+void
+_initialize_f_language (void)
 {
-  
-  SAVED_BF_PTR tmp = saved_bf_list;
-  SAVED_BF_PTR next = NULL; 
-  
-  while (tmp != NULL)
-    {
-      next = tmp->next;
-      free(tmp);
-      tmp=next;
-    }
-  saved_bf_list = NULL;
+  f_type_data = gdbarch_data_register_post_init (build_fortran_types);
 }
-#endif
 
-int global_remote_debug;
+/* See f-lang.h.  */
 
-#if 0
-
-static long
-get_bf_for_fcn (the_function)
-     long the_function;
+struct value *
+fortran_argument_convert (struct value *value, bool is_artificial)
 {
-  SAVED_BF_PTR tmp;
-  int nprobes = 0;
-  
-  /* First use a simple queuing algorithm (i.e. look and see if the 
-     item at the head of the queue is the one you want)  */
-  
-  if (saved_bf_list == NULL)
-    fatal ("cannot get .bf node off empty list"); 
-  
-  if (current_head_bf_list != NULL) 
-    if (current_head_bf_list->symnum_fcn == the_function)
-      {
-       if (global_remote_debug) 
-         fprintf(stderr,"*"); 
-
-       tmp = current_head_bf_list; 
-       current_head_bf_list = current_head_bf_list->next;
-       return(tmp->symnum_bf); 
-      }
-  
-  /* If the above did not work (probably because #line directives were 
-     used in the sourcefile and they messed up our internal tables) we now do
-     the ugly linear scan */
-  
-  if (global_remote_debug) 
-    fprintf(stderr,"\ndefaulting to linear scan\n"); 
-  
-  nprobes = 0; 
-  tmp = saved_bf_list;
-  while (tmp != NULL)
+  if (!is_artificial)
     {
-      nprobes++; 
-      if (tmp->symnum_fcn == the_function)
-       { 
-         if (global_remote_debug)
-           fprintf(stderr,"Found in %d probes\n",nprobes);
-         current_head_bf_list = tmp->next;
-         return(tmp->symnum_bf);
-       } 
-      tmp= tmp->next; 
+      /* If the value is not in the inferior e.g. registers values,
+        convenience variables and user input.  */
+      if (VALUE_LVAL (value) != lval_memory)
+       {
+         struct type *type = value_type (value);
+         const int length = TYPE_LENGTH (type);
+         const CORE_ADDR addr
+           = value_as_long (value_allocate_space_in_inferior (length));
+         write_memory (addr, value_contents (value), length);
+         struct value *val
+           = value_from_contents_and_address (type, value_contents (value),
+                                              addr);
+         return value_addr (val);
+       }
+      else
+       return value_addr (value); /* Program variables, e.g. arrays.  */
     }
-  
-  return(-1); 
+    return value;
 }
 
-static SAVED_FUNCTION_PTR saved_function_list=NULL; 
-static SAVED_FUNCTION_PTR saved_function_list_end=NULL; 
+/* See f-lang.h.  */
 
-static void
-clear_function_list()
+struct type *
+fortran_preserve_arg_pointer (struct value *arg, struct type *type)
 {
-  SAVED_FUNCTION_PTR tmp = saved_function_list;
-  SAVED_FUNCTION_PTR next = NULL; 
-  
-  while (tmp != NULL)
-    {
-      next = tmp->next;
-      free(tmp);
-      tmp = next;
-    }
-  
-  saved_function_list = NULL;
+  if (TYPE_CODE (value_type (arg)) == TYPE_CODE_PTR)
+    return value_type (arg);
+  return type;
 }
-#endif
-
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