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);
}
bool
gfc_post_options (const char **pfilename)
{
const char *filename = *pfilename, *canon_source_file = NULL;
char *source_path;
int i;
/* Excess precision other than "fast" requires front-end
support. */
if (flag_excess_precision_cmdline == EXCESS_PRECISION_STANDARD
&& TARGET_FLT_EVAL_METHOD_NON_DEFAULT)
sorry ("-fexcess-precision=standard for Fortran");
flag_excess_precision_cmdline = EXCESS_PRECISION_FAST;
/* Whole program needs whole file mode. */
if (flag_whole_program)
gfc_option.flag_whole_file = 1;
/* Enable whole-file mode if LTO is in effect. */
if (flag_lto)
gfc_option.flag_whole_file = 1;
/* Fortran allows associative math - but we cannot reassociate if
we want traps or signed zeros. Cf. also flag_protect_parens. */
if (flag_associative_math == -1)
flag_associative_math = (!flag_trapping_math && !flag_signed_zeros);
/* By default, disable (re)allocation during assignment for -std=f95,
and enable it for F2003/F2008/GNU/Legacy. */
if (gfc_option.flag_realloc_lhs == -1)
{
if (gfc_option.allow_std & GFC_STD_F2003)
gfc_option.flag_realloc_lhs = 1;
else
gfc_option.flag_realloc_lhs = 0;
}
/* -fbounds-check is equivalent to -fcheck=bounds */
if (flag_bounds_check)
gfc_option.rtcheck |= GFC_RTCHECK_BOUNDS;
if (flag_compare_debug)
gfc_option.dump_fortran_original = 0;
/* Make -fmax-errors visible to gfortran's diagnostic machinery. */
if (global_options_set.x_flag_max_errors)
gfc_option.max_errors = flag_max_errors;
/* 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.gfc_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.gfc_flag_openmp)
gfc_warning_now ("Flag -fmax-stack-var-size=%d overwrites -frecursive "
"implied by -fopenmp",
gfc_option.flag_max_stack_var_size);
/* Implement -frecursive as -fmax-stack-var-size=-1. */
if (gfc_option.flag_recursive)
gfc_option.flag_max_stack_var_size = -1;
/* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */
if (gfc_option.flag_max_stack_var_size == -2 && gfc_option.gfc_flag_openmp
&& gfc_option.flag_automatic)
{
gfc_option.flag_recursive = 1;
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 -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;
}
if (pedantic && gfc_option.flag_whole_file)
gfc_option.flag_whole_file = 2;
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;
}
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;
}