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/* Fortran language support routines for GDB, the GNU debugger.
   Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
   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 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 "gdb_string.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "parser-defs.h"
#include "language.h"
#include "f-lang.h"
#include "valprint.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;
  };
 
 
struct saved_bf_symnum
  {
    long symnum_fcn;            /* Symnum of function (i.e. .function directive) */
    long symnum_bf;             /* Symnum of .bf for this function */
    struct saved_bf_symnum *next;
  };
 
typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
 
/* Local functions */
 
extern void _initialize_f_language (void);
#if 0
static void clear_function_list (void);
static long get_bf_for_fcn (long);
static void clear_bf_list (void);
static void patch_all_commons_by_name (char *, CORE_ADDR, int);
static SAVED_F77_COMMON_PTR find_first_common_named (char *);
static void add_common_entry (struct symbol *);
static void add_common_block (char *, CORE_ADDR, int, char *);
static SAVED_FUNCTION *allocate_saved_function_node (void);
static SAVED_BF_PTR allocate_saved_bf_node (void);
static COMMON_ENTRY_PTR allocate_common_entry_node (void);
static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void);
static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int);
#endif
 
static struct type *f_create_fundamental_type (struct objfile *, int);
static void f_printstr (struct ui_file * stream, char *string,
                        unsigned int length, int width,
                        int force_ellipses);
static void f_printchar (int c, struct ui_file * stream);
static void f_emit_char (int c, struct ui_file * stream, int quoter);
 
/* 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
   characters and strings is language specific.
   FIXME:  This is a copy of the same function from c-exp.y.  It should
   be replaced with a true F77 version.  */
 
static void
f_emit_char (register int c, 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;
        }
    }
}
 
/* FIXME:  This is a copy of the same function from c-exp.y.  It should
   be replaced with a true F77version. */
 
static void
f_printchar (int c, struct ui_file *stream)
{
  fputs_filtered ("'", stream);
  LA_EMIT_CHAR (c, stream, '\'');
  fputs_filtered ("'", stream);
}
 
/* Print the character string STRING, printing at most LENGTH characters.
   Printing stops early if the number hits print_max; repeat counts
   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. */
 
static void
f_printstr (struct ui_file *stream, char *string, unsigned int length,
            int width, int force_ellipses)
{
  register unsigned int i;
  unsigned int things_printed = 0;
  int in_quotes = 0;
  int need_comma = 0;
  extern int inspect_it;
 
  if (length == 0)
    {
      fputs_filtered ("''", gdb_stdout);
      return;
    }
 
  for (i = 0; i < length && things_printed < print_max; ++i)
    {
      /* 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)
        {
          fputs_filtered (", ", stream);
          need_comma = 0;
        }
 
      rep1 = i + 1;
      reps = 1;
      while (rep1 < length && string[rep1] == string[i])
        {
          ++rep1;
          ++reps;
        }
 
      if (reps > repeat_count_threshold)
        {
          if (in_quotes)
            {
              if (inspect_it)
                fputs_filtered ("\\', ", stream);
              else
                fputs_filtered ("', ", stream);
              in_quotes = 0;
            }
          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)
            {
              if (inspect_it)
                fputs_filtered ("\\'", stream);
              else
                fputs_filtered ("'", stream);
              in_quotes = 1;
            }
          LA_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);
    }
 
  if (force_ellipses || i < length)
    fputs_filtered ("...", stream);
}
 
/* 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. */
 
static struct type *
f_create_fundamental_type (struct objfile *objfile, int typeid)
{
  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);
}
 
 
/* 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, 0, 0, 0}
};
 
struct type **const (f_builtin_types[]) =
{
  &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,
 
};
 
/* 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 (struct value *, struct ui_file *, int,
                          enum val_prettyprint);
 
const struct language_defn f_language_defn =
{
  "fortran",
  language_fortran,
  f_builtin_types,
  range_check_on,
  type_check_on,
  case_sensitive_off,
  f_parse,                      /* parser */
  f_error,                      /* parser error function */
  evaluate_subexp_standard,
  f_printchar,                  /* Print character constant */
  f_printstr,                   /* function to print string constant */
  f_emit_char,                  /* Function to print a single character */
  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
};
 
void
_initialize_f_language (void)
{
  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);
}
 
#if 0
static SAVED_BF_PTR
allocate_saved_bf_node (void)
{
  SAVED_BF_PTR new;
 
  new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
  return (new);
}
 
static SAVED_FUNCTION *
allocate_saved_function_node (void)
{
  SAVED_FUNCTION *new;
 
  new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
  return (new);
}
 
static SAVED_F77_COMMON_PTR
allocate_saved_f77_common_node (void)
{
  SAVED_F77_COMMON_PTR new;
 
  new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
  return (new);
}
 
static COMMON_ENTRY_PTR
allocate_common_entry_node (void)
{
  COMMON_ENTRY_PTR new;
 
  new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
  return (new);
}
#endif
 
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 */
 
#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
                                                         */
 
static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
                                   in macros */
 
/* The following function simply enters a given common block onto
   the global common block chain */
 
static void
add_common_block (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))
    {
 
      xfree (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;
    }
}
#endif
 
/* The following function simply enters a given common entry onto
   the "current_common" block that has been saved away. */
 
#if 0
static void
add_common_entry (struct symbol *entry_sym_ptr)
{
  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
    {
      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;
        }
    }
}
#endif
 
/* This routine finds the first encountred COMMON block named "name" */
 
#if 0
static SAVED_F77_COMMON_PTR
find_first_common_named (char *name)
{
 
  SAVED_F77_COMMON_PTR tmp;
 
  tmp = head_common_list;
 
  while (tmp != NULL)
    {
      if (STREQ (tmp->name, name))
        return (tmp);
      else
        tmp = tmp->next;
    }
  return (NULL);
}
#endif
 
/* This routine finds the first encountred COMMON block named "name"
   that belongs to function funcname */
 
SAVED_F77_COMMON_PTR
find_common_for_function (char *name, char *funcname)
{
 
  SAVED_F77_COMMON_PTR tmp;
 
  tmp = head_common_list;
 
  while (tmp != NULL)
    {
      if (STREQ (tmp->name, name) && STREQ (tmp->owning_function, funcname))
        return (tmp);
      else
        tmp = tmp->next;
    }
  return (NULL);
}
 
 
#if 0
 
/* The following function is called to patch up the offsets
   for the statics contained in the COMMON block named
   "name."  */
 
static void
patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
{
  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;
}
 
/* 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 void
patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
{
 
  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)))
    {
      xfree (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;
    }
}
#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)
{
 
  SAVED_BF_PTR tmp = saved_bf_list;
  SAVED_BF_PTR next = NULL;
 
  while (tmp != NULL)
    {
      next = tmp->next;
      xfree (tmp);
      tmp = next;
    }
  saved_bf_list = NULL;
}
#endif
 
int global_remote_debug;
 
#if 0
 
static long
get_bf_for_fcn (long the_function)
{
  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)
    internal_error (__FILE__, __LINE__,
                    "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_unfiltered (gdb_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_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
 
  nprobes = 0;
  tmp = saved_bf_list;
  while (tmp != NULL)
    {
      nprobes++;
      if (tmp->symnum_fcn == the_function)
        {
          if (global_remote_debug)
            fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
          current_head_bf_list = tmp->next;
          return (tmp->symnum_bf);
        }
      tmp = tmp->next;
    }
 
  return (-1);
}
 
static SAVED_FUNCTION_PTR saved_function_list = NULL;
static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
 
static void
clear_function_list (void)
{
  SAVED_FUNCTION_PTR tmp = saved_function_list;
  SAVED_FUNCTION_PTR next = NULL;
 
  while (tmp != NULL)
    {
      next = tmp->next;
      xfree (tmp);
      tmp = next;
    }
 
  saved_function_list = NULL;
}
#endif
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[/] [or1k_old/] [trunk/] [gdb-5.3/] [gdb/] [f-lang.c] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	1181	sfurman	`/* Fortran language support routines for GDB, the GNU debugger.`
2			`Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002`
3			`Free Software Foundation, Inc.`
4			`Contributed by Motorola. Adapted from the C parser by Farooq Butt`
5			`(fmbutt@engage.sps.mot.com).`
6
7			`This file is part of GDB.`
8
9			`This program is free software; you can redistribute it and/or modify`
10			`it under the terms of the GNU General Public License as published by`
11			`the Free Software Foundation; either version 2 of the License, or`
12			`(at your option) any later version.`
13
14			`This program is distributed in the hope that it will be useful,`
15			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
16			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
17			`GNU General Public License for more details.`
18
19			`You should have received a copy of the GNU General Public License`
20			`along with this program; if not, write to the Free Software`
21			`Foundation, Inc., 59 Temple Place - Suite 330,`
22			`Boston, MA 02111-1307, USA. */`
23
24			`#include "defs.h"`
25			`#include "gdb_string.h"`
26			`#include "symtab.h"`
27			`#include "gdbtypes.h"`
28			`#include "expression.h"`
29			`#include "parser-defs.h"`
30			`#include "language.h"`
31			`#include "f-lang.h"`
32			`#include "valprint.h"`
33
34			`/* The built-in types of F77. FIXME: integer*4 is missing, plain`
35			`logical is missing (builtin_type_logical is logical4). /`
36
37			`struct type *builtin_type_f_character;`
38			`struct type *builtin_type_f_logical;`
39			`struct type *builtin_type_f_logical_s1;`
40			`struct type *builtin_type_f_logical_s2;`