Пример #1
0
static void
gfc_handle_coarray_option (const char *arg)
{
  if (strcmp (arg, "none") == 0)
    gfc_option.coarray = GFC_FCOARRAY_NONE;
  else if (strcmp (arg, "single") == 0)
    gfc_option.coarray = GFC_FCOARRAY_SINGLE;
  else
    gfc_fatal_error ("Argument to -fcoarray is not valid: %s", arg);
}
static void
gfc_handle_module_path_options (const char *arg)
{

  if (gfc_option.module_dir != NULL)
    gfc_fatal_error ("gfortran: Only one -J option allowed");

  gfc_option.module_dir = (char *) gfc_getmem (strlen (arg) + 2);
  strcpy (gfc_option.module_dir, arg);
  strcat (gfc_option.module_dir, "/");

  gfc_add_include_path (gfc_option.module_dir, true, false);
}
Пример #3
0
void *
gfc_getmem (size_t n)
{
  void *p;

  if (n == 0)
    return NULL;

  p = xmalloc (n);
  if (p == NULL)
    gfc_fatal_error ("Out of memory-- malloc() failed");
  memset (p, 0, n);
  return p;
}
Пример #4
0
static void
gfc_handle_runtime_check_option (const char *arg)
{
  int result, pos = 0, n;
  static const char * const optname[] = { "all", "bounds", "array-temps",
					  "recursion", "do", "pointer",
					  "mem", NULL };
  static const int optmask[] = { GFC_RTCHECK_ALL, GFC_RTCHECK_BOUNDS,
				 GFC_RTCHECK_ARRAY_TEMPS,
				 GFC_RTCHECK_RECURSION, GFC_RTCHECK_DO,
				 GFC_RTCHECK_POINTER, GFC_RTCHECK_MEM,
				 0 };
 
  while (*arg)
    {
      while (*arg == ',')
	arg++;

      while (arg[pos] && arg[pos] != ',')
	pos++;

      result = 0;
      for (n = 0; optname[n] != NULL; n++)
	{
	  if (optname[n] && strncmp (optname[n], arg, pos) == 0)
	    {
	      gfc_option.rtcheck |= optmask[n];
	      arg += pos;
	      pos = 0;
	      result = 1;
	      break;
	    }
	}
      if (!result)
	gfc_fatal_error ("Argument to -fcheck is not valid: %s", arg);
    }
}
Пример #5
0
static void
gfc_handle_fpe_trap_option (const char *arg)
{
  int result, pos = 0, n;
  static const char * const exception[] = { "invalid", "denormal", "zero",
					    "overflow", "underflow",
					    "precision", NULL };
  static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL,
				       GFC_FPE_ZERO, GFC_FPE_OVERFLOW,
				       GFC_FPE_UNDERFLOW, GFC_FPE_PRECISION,
				       0 };
 
  while (*arg)
    {
      while (*arg == ',')
	arg++;

      while (arg[pos] && arg[pos] != ',')
	pos++;

      result = 0;
      for (n = 0; exception[n] != NULL; n++)
	{
	  if (exception[n] && strncmp (exception[n], arg, pos) == 0)
	    {
	      gfc_option.fpe |= opt_exception[n];
	      arg += pos;
	      pos = 0;
	      result = 1;
	      break;
	    }
	}
      if (!result)
	gfc_fatal_error ("Argument to -ffpe-trap is not valid: %s", arg);
    }
}
Пример #6
0
gfc_try
gfc_build_class_symbol (gfc_typespec *ts, symbol_attribute *attr,
                        gfc_array_spec **as, bool delayed_vtab)
{
    char name[GFC_MAX_SYMBOL_LEN+1], tname[GFC_MAX_SYMBOL_LEN+1];
    gfc_symbol *fclass;
    gfc_symbol *vtab;
    gfc_component *c;

    if (attr->class_ok)
        /* Class container has already been built.  */
        return SUCCESS;

    attr->class_ok = attr->dummy || attr->pointer || attr->allocatable;

    if (!attr->class_ok)
        /* We can not build the class container yet.  */
        return SUCCESS;

    if (*as)
    {
        gfc_fatal_error ("Polymorphic array at %C not yet supported");
        return FAILURE;
    }

    /* Determine the name of the encapsulating type.  */
    get_unique_hashed_string (tname, ts->u.derived);
    if ((*as) && (*as)->rank && attr->allocatable)
        sprintf (name, "__class_%s_%d_a", tname, (*as)->rank);
    else if ((*as) && (*as)->rank)
        sprintf (name, "__class_%s_%d", tname, (*as)->rank);
    else if (attr->pointer)
        sprintf (name, "__class_%s_p", tname);
    else if (attr->allocatable)
        sprintf (name, "__class_%s_a", tname);
    else
        sprintf (name, "__class_%s", tname);

    gfc_find_symbol (name, ts->u.derived->ns, 0, &fclass);
    if (fclass == NULL)
    {
        gfc_symtree *st;
        /* If not there, create a new symbol.  */
        fclass = gfc_new_symbol (name, ts->u.derived->ns);
        st = gfc_new_symtree (&ts->u.derived->ns->sym_root, name);
        st->n.sym = fclass;
        gfc_set_sym_referenced (fclass);
        fclass->refs++;
        fclass->ts.type = BT_UNKNOWN;
        fclass->attr.abstract = ts->u.derived->attr.abstract;
        if (ts->u.derived->f2k_derived)
            fclass->f2k_derived = gfc_get_namespace (NULL, 0);
        if (gfc_add_flavor (&fclass->attr, FL_DERIVED,
                            NULL, &gfc_current_locus) == FAILURE)
            return FAILURE;

        /* Add component '_data'.  */
        if (gfc_add_component (fclass, "_data", &c) == FAILURE)
            return FAILURE;
        c->ts = *ts;
        c->ts.type = BT_DERIVED;
        c->attr.access = ACCESS_PRIVATE;
        c->ts.u.derived = ts->u.derived;
        c->attr.class_pointer = attr->pointer;
        c->attr.pointer = attr->pointer || attr->dummy;
        c->attr.allocatable = attr->allocatable;
        c->attr.dimension = attr->dimension;
        c->attr.codimension = attr->codimension;
        c->attr.abstract = ts->u.derived->attr.abstract;
        c->as = (*as);
        c->initializer = NULL;

        /* Add component '_vptr'.  */
        if (gfc_add_component (fclass, "_vptr", &c) == FAILURE)
            return FAILURE;
        c->ts.type = BT_DERIVED;
        if (delayed_vtab)
            c->ts.u.derived = NULL;
        else
        {
            vtab = gfc_find_derived_vtab (ts->u.derived);
            gcc_assert (vtab);
            c->ts.u.derived = vtab->ts.u.derived;
        }
        c->attr.access = ACCESS_PRIVATE;
        c->attr.pointer = 1;
    }

    /* Since the extension field is 8 bit wide, we can only have
       up to 255 extension levels.  */
    if (ts->u.derived->attr.extension == 255)
    {
        gfc_error ("Maximum extension level reached with type '%s' at %L",
                   ts->u.derived->name, &ts->u.derived->declared_at);
        return FAILURE;
    }

    fclass->attr.extension = ts->u.derived->attr.extension + 1;
    fclass->attr.is_class = 1;
    ts->u.derived = fclass;
    attr->allocatable = attr->pointer = attr->dimension = 0;
    (*as) = NULL;  /* XXX */
    return SUCCESS;
}
int
gfc_handle_option (size_t scode, const char *arg, int value)
{
  int result = 1;
  enum opt_code code = (enum opt_code) scode;

  /* Ignore file names.  */
  if (code == N_OPTS)
    return 1;

  if (gfc_cpp_handle_option (scode, arg, value) == 1)
    return 1;

  switch (code)
    {
    default:
      result = 0;
      break;

    case OPT_Wall:
      set_Wall (value);
      break;

    case OPT_Waliasing:
      gfc_option.warn_aliasing = value;
      break;

    case OPT_Wampersand:
      gfc_option.warn_ampersand = value;
      break;

    case OPT_Warray_temporaries:
      gfc_option.warn_array_temp = value;
      break;

    case OPT_Wcharacter_truncation:
      gfc_option.warn_character_truncation = value;
      break;

    case OPT_Wconversion:
      gfc_option.warn_conversion = value;
      break;

    case OPT_Wimplicit_interface:
      gfc_option.warn_implicit_interface = value;
      break;

    case OPT_Wline_truncation:
      gfc_option.warn_line_truncation = value;
      break;

    case OPT_Wreturn_type:
      warn_return_type = value;
      break;

    case OPT_Wsurprising:
      gfc_option.warn_surprising = value;
      break;

    case OPT_Wtabs:
      gfc_option.warn_tabs = value;
      break;

    case OPT_Wunderflow:
      gfc_option.warn_underflow = value;
      break;

    case OPT_Wintrinsic_shadow:
      gfc_option.warn_intrinsic_shadow = value;
      break;

    case OPT_Walign_commons:
      gfc_option.warn_align_commons = value;
      break;

    case OPT_fall_intrinsics:
      gfc_option.flag_all_intrinsics = 1;
      break;

    case OPT_fautomatic:
      gfc_option.flag_automatic = value;
      break;

    case OPT_fallow_leading_underscore:
      gfc_option.flag_allow_leading_underscore = value;
      break;
      
    case OPT_fbackslash:
      gfc_option.flag_backslash = value;
      break;
      
    case OPT_fbacktrace:
      gfc_option.flag_backtrace = value;
      break;
      
    case OPT_fcheck_array_temporaries:
      gfc_option.flag_check_array_temporaries = value;
      break;
      
    case OPT_fdump_core:
      gfc_option.flag_dump_core = value;
      break;

    case OPT_fcray_pointer:
      gfc_option.flag_cray_pointer = value;
      break;

    case OPT_ff2c:
      gfc_option.flag_f2c = value;
      break;

    case OPT_fdollar_ok:
      gfc_option.flag_dollar_ok = value;
      break;

    case OPT_fexternal_blas:
      gfc_option.flag_external_blas = value;
      break;

    case OPT_fblas_matmul_limit_:
      gfc_option.blas_matmul_limit = value;
      break;

    case OPT_fd_lines_as_code:
      gfc_option.flag_d_lines = 1;
      break;

    case OPT_fd_lines_as_comments:
      gfc_option.flag_d_lines = 0;
      break;

    case OPT_fdump_parse_tree:
      gfc_option.dump_parse_tree = value;
      break;

    case OPT_ffixed_form:
      gfc_option.source_form = FORM_FIXED;
      break;

    case OPT_ffixed_line_length_none:
      gfc_option.fixed_line_length = 0;
      break;

    case OPT_ffixed_line_length_:
      if (value != 0 && value < 7)
	gfc_fatal_error ("Fixed line length must be at least seven.");
      gfc_option.fixed_line_length = value;
      break;

    case OPT_ffree_form:
      gfc_option.source_form = FORM_FREE;
      break;

    case OPT_fopenmp:
      gfc_option.flag_openmp = value;
      break;

    case OPT_ffree_line_length_none:
      gfc_option.free_line_length = 0;
      break;

    case OPT_ffree_line_length_:
      if (value != 0 && value < 4)
	gfc_fatal_error ("Free line length must be at least three.");
      gfc_option.free_line_length = value;
      break;

    case OPT_funderscoring:
      gfc_option.flag_underscoring = value;
      break;

    case OPT_fsecond_underscore:
      gfc_option.flag_second_underscore = value;
      break;

    case OPT_static_libgfortran:
#ifndef HAVE_LD_STATIC_DYNAMIC
      gfc_fatal_error ("-static-libgfortran is not supported in this "
		       "configuration");
#endif
      break;

    case OPT_fimplicit_none:
      gfc_option.flag_implicit_none = value;
      break;

    case OPT_fintrinsic_modules_path:
      gfc_add_include_path (arg, false, false);
      gfc_add_intrinsic_modules_path (arg);
      break;

    case OPT_fmax_array_constructor_:
      gfc_option.flag_max_array_constructor = value > 65535 ? value : 65535;
      break;

    case OPT_fmax_errors_:
      gfc_option.max_errors = value;
      break;

    case OPT_fmax_stack_var_size_:
      gfc_option.flag_max_stack_var_size = value;
      break;

    case OPT_fmodule_private:
      gfc_option.flag_module_private = value;
      break;
      
    case OPT_frange_check:
      gfc_option.flag_range_check = value;
      break;

    case OPT_fpack_derived:
      gfc_option.flag_pack_derived = value;
      break;

    case OPT_frepack_arrays:
      gfc_option.flag_repack_arrays = value;
      break;

    case OPT_fpreprocessed:
      gfc_option.flag_preprocessed = value;
      break;

    case OPT_fmax_identifier_length_:
      if (value > GFC_MAX_SYMBOL_LEN)
	gfc_fatal_error ("Maximum supported identifier length is %d",
			 GFC_MAX_SYMBOL_LEN);
      gfc_option.max_identifier_length = value;
      break;

    case OPT_fdefault_integer_8:
      gfc_option.flag_default_integer = value;
      break;

    case OPT_fdefault_real_8:
      gfc_option.flag_default_real = value;
      break;

    case OPT_fdefault_double_8:
      gfc_option.flag_default_double = value;
      break;

    case OPT_finit_local_zero:
      gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
      gfc_option.flag_init_integer_value = 0;
      gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
      gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
      gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
      gfc_option.flag_init_character_value = (char)0;
      break;

    case OPT_finit_logical_:
      if (!strcasecmp (arg, "false"))
	gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
      else if (!strcasecmp (arg, "true"))
	gfc_option.flag_init_logical = GFC_INIT_LOGICAL_TRUE;
      else
	gfc_fatal_error ("Unrecognized option to -finit-logical: %s",
			 arg);
      break;

    case OPT_finit_real_:
      if (!strcasecmp (arg, "zero"))
	gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
      else if (!strcasecmp (arg, "nan"))
	gfc_option.flag_init_real = GFC_INIT_REAL_NAN;
      else if (!strcasecmp (arg, "inf"))
	gfc_option.flag_init_real = GFC_INIT_REAL_INF;
      else if (!strcasecmp (arg, "-inf"))
	gfc_option.flag_init_real = GFC_INIT_REAL_NEG_INF;
      else
	gfc_fatal_error ("Unrecognized option to -finit-real: %s",
			 arg);
      break;

    case OPT_finit_integer_:
      gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
      gfc_option.flag_init_integer_value = atoi (arg);
      break;

    case OPT_finit_character_:
      if (value >= 0 && value <= 127)
	{
	  gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
	  gfc_option.flag_init_character_value = (char)value;
	}
      else
	gfc_fatal_error ("The value of n in -finit-character=n must be "
			 "between 0 and 127");
      break;

    case OPT_I:
      gfc_add_include_path (arg, true, false);
      break;

    case OPT_J:
      gfc_handle_module_path_options (arg);
      break;

    case OPT_fsign_zero:
      gfc_option.flag_sign_zero = value;
      break;

    case OPT_ffpe_trap_:
      gfc_handle_fpe_trap_option (arg);
      break;

    case OPT_std_f95:
      gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95 | GFC_STD_F77;
      gfc_option.warn_std = GFC_STD_F95_OBS;
      gfc_option.max_continue_fixed = 19;
      gfc_option.max_continue_free = 39;
      gfc_option.max_identifier_length = 31;
      gfc_option.warn_ampersand = 1;
      gfc_option.warn_tabs = 0;
      break;

    case OPT_std_f2003:
      gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77 
	| GFC_STD_F2003 | GFC_STD_F95;
      gfc_option.warn_std = GFC_STD_F95_OBS;
      gfc_option.max_identifier_length = 63;
      gfc_option.warn_ampersand = 1;
      gfc_option.warn_tabs = 0;
      break;

    case OPT_std_f2008:
      gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77 
	| GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008;
      gfc_option.warn_std = GFC_STD_F95_OBS;
      gfc_option.max_identifier_length = 63;
      gfc_option.warn_ampersand = 1;
      gfc_option.warn_tabs = 0;
      break;

    case OPT_std_gnu:
      set_default_std_flags ();
      break;

    case OPT_std_legacy:
      set_default_std_flags ();
      gfc_option.warn_std = 0;
      break;

    case OPT_Wintrinsics_std:
      gfc_option.warn_intrinsics_std = value;
      break;

    case OPT_fshort_enums:
      gfc_option.fshort_enums = 1;
      break;

    case OPT_fconvert_little_endian:
      gfc_option.convert = GFC_CONVERT_LITTLE;
      break;

    case OPT_fconvert_big_endian:
      gfc_option.convert = GFC_CONVERT_BIG;
      break;

    case OPT_fconvert_native:
      gfc_option.convert = GFC_CONVERT_NATIVE;
      break;

    case OPT_fconvert_swap:
      gfc_option.convert = GFC_CONVERT_SWAP;
      break;

    case OPT_frecord_marker_4:
      gfc_option.record_marker = 4;
      break;

    case OPT_frecord_marker_8:
      gfc_option.record_marker = 8;
      break;

    case OPT_fmax_subrecord_length_:
      if (value > MAX_SUBRECORD_LENGTH)
	gfc_fatal_error ("Maximum subrecord length cannot exceed %d",
			 MAX_SUBRECORD_LENGTH);

      gfc_option.max_subrecord_length = value;
      break;

    case OPT_frecursive:
      gfc_option.flag_recursive = 1;
      break;

    case OPT_falign_commons:
      gfc_option.flag_align_commons = value;
      break;
    }

  return result;
}
bool
gfc_post_options (const char **pfilename)
{
  const char *filename = *pfilename, *canon_source_file = NULL;
  char *source_path;
  int i;

  /* Issue an error if -fwhole-program was used.  */
  if (flag_whole_program)
    gfc_fatal_error ("Option -fwhole-program is not supported for Fortran");

  /* Verify the input file name.  */
  if (!filename || strcmp (filename, "-") == 0)
    {
      filename = "";
    }

  if (gfc_option.flag_preprocessed)
    {
      /* For preprocessed files, if the first tokens are of the form # NUM.
	 handle the directives so we know the original file name.  */
      gfc_source_file = gfc_read_orig_filename (filename, &canon_source_file);
      if (gfc_source_file == NULL)
	gfc_source_file = filename;
      else
	*pfilename = gfc_source_file;
    }
  else
    gfc_source_file = filename;

  if (canon_source_file == NULL)
    canon_source_file = gfc_source_file;

  /* Adds the path where the source file is to the list of include files.  */

  i = strlen (canon_source_file);
  while (i > 0 && !IS_DIR_SEPARATOR (canon_source_file[i]))
    i--;

  if (i != 0)
    {
      source_path = (char *) alloca (i + 1);
      memcpy (source_path, canon_source_file, i);
      source_path[i] = 0;
      gfc_add_include_path (source_path, true, true);
    }
  else
    gfc_add_include_path (".", true, true);

  if (canon_source_file != gfc_source_file)
    gfc_free (CONST_CAST (char *, canon_source_file));

  /* Decide which form the file will be read in as.  */

  if (gfc_option.source_form != FORM_UNKNOWN)
    gfc_current_form = gfc_option.source_form;
  else
    {
      gfc_current_form = form_from_filename (filename);

      if (gfc_current_form == FORM_UNKNOWN)
	{
	  gfc_current_form = FORM_FREE;
	  gfc_warning_now ("Reading file '%s' as free form", 
			   (filename[0] == '\0') ? "<stdin>" : filename);
	}
    }

  /* If the user specified -fd-lines-as-{code|comments} verify that we're
     in fixed form.  */
  if (gfc_current_form == FORM_FREE)
    {
      if (gfc_option.flag_d_lines == 0)
	gfc_warning_now ("'-fd-lines-as-comments' has no effect "
			 "in free form");
      else if (gfc_option.flag_d_lines == 1)
	gfc_warning_now ("'-fd-lines-as-code' has no effect in free form");
    }

  /* If -pedantic, warn about the use of GNU extensions.  */
  if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0)
    gfc_option.warn_std |= GFC_STD_GNU;
  /* -std=legacy -pedantic is effectively -std=gnu.  */
  if (pedantic && (gfc_option.allow_std & GFC_STD_LEGACY) != 0)
    gfc_option.warn_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_LEGACY;

  /* If the user didn't explicitly specify -f(no)-second-underscore we
     use it if we're trying to be compatible with f2c, and not
     otherwise.  */
  if (gfc_option.flag_second_underscore == -1)
    gfc_option.flag_second_underscore = gfc_option.flag_f2c;

  if (!gfc_option.flag_automatic && gfc_option.flag_max_stack_var_size != -2
      && gfc_option.flag_max_stack_var_size != 0)
    gfc_warning_now ("Flag -fno-automatic overwrites -fmax-stack-var-size=%d",
		     gfc_option.flag_max_stack_var_size);
  else if (!gfc_option.flag_automatic && gfc_option.flag_recursive)
    gfc_warning_now ("Flag -fno-automatic overwrites -frecursive");
  else if (!gfc_option.flag_automatic && gfc_option.flag_openmp)
    gfc_warning_now ("Flag -fno-automatic overwrites -frecursive implied by "
		     "-fopenmp");
  else if (gfc_option.flag_max_stack_var_size != -2
	   && gfc_option.flag_recursive)
    gfc_warning_now ("Flag -frecursive overwrites -fmax-stack-var-size=%d",
		     gfc_option.flag_max_stack_var_size);
  else if (gfc_option.flag_max_stack_var_size != -2
	   && gfc_option.flag_openmp)
    gfc_warning_now ("Flag -fmax-stack-var-size=%d overwrites -frecursive "
		     "implied by -fopenmp", 
		     gfc_option.flag_max_stack_var_size);

  /* Implied -frecursive; implemented as -fmax-stack-var-size=-1.  */
  if (gfc_option.flag_max_stack_var_size == -2 && gfc_option.flag_openmp)
    gfc_option.flag_max_stack_var_size = -1;

  /* Set default.  */
  if (gfc_option.flag_max_stack_var_size == -2)
    gfc_option.flag_max_stack_var_size = 32768;

  /* Implement -frecursive as -fmax-stack-var-size=-1.  */
  if (gfc_option.flag_recursive)
    gfc_option.flag_max_stack_var_size = -1;

  /* Implement -fno-automatic as -fmax-stack-var-size=0.  */
  if (!gfc_option.flag_automatic)
    gfc_option.flag_max_stack_var_size = 0;
  
  if (pedantic)
    { 
      gfc_option.warn_ampersand = 1;
      gfc_option.warn_tabs = 0;
    }

  gfc_cpp_post_options ();

/* FIXME: return gfc_cpp_preprocess_only ();

   The return value of this function indicates whether the
   backend needs to be initialized. On -E, we don't need
   the backend. However, if we return 'true' here, an
   ICE occurs. Initializing the backend doesn't hurt much,
   hence, for now we can live with it as is.  */
  return false;
}