#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tree.h"
#include "flags.h"
#include "intl.h"
#include "opts.h"
#include "options.h"
#include "tree-inline.h"
#include "gfortran.h"
gfc_option_t gfc_option;
unsigned int
gfc_init_options (unsigned int argc ATTRIBUTE_UNUSED,
const char **argv ATTRIBUTE_UNUSED)
{
gfc_option.source = NULL;
gfc_option.module_dir = NULL;
gfc_option.source_form = FORM_UNKNOWN;
gfc_option.fixed_line_length = 72;
gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
gfc_option.verbose = 0;
gfc_option.warn_aliasing = 0;
gfc_option.warn_conversion = 0;
gfc_option.warn_implicit_interface = 0;
gfc_option.warn_line_truncation = 0;
gfc_option.warn_underflow = 1;
gfc_option.warn_surprising = 0;
gfc_option.warn_unused_labels = 0;
gfc_option.flag_default_double = 0;
gfc_option.flag_default_integer = 0;
gfc_option.flag_default_real = 0;
gfc_option.flag_dollar_ok = 0;
gfc_option.flag_underscoring = 1;
gfc_option.flag_second_underscore = 1;
gfc_option.flag_implicit_none = 0;
gfc_option.flag_max_stack_var_size = 32768;
gfc_option.flag_module_access_private = 0;
gfc_option.flag_no_backend = 0;
gfc_option.flag_pack_derived = 0;
gfc_option.flag_repack_arrays = 0;
gfc_option.q_kind = gfc_default_double_kind;
flag_argument_noalias = 2;
flag_errno_math = 0;
gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
| GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F77 | GFC_STD_GNU;
gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
| GFC_STD_F2003;
gfc_option.warn_nonstd_intrinsics = 0;
return CL_F95;
}
bool
gfc_post_options (const char **pfilename)
{
const char *filename = *pfilename;
if (!filename || strcmp (filename, "-") == 0)
{
filename = "";
}
gfc_option.source = filename;
flag_inline_trees = 1;
if (!flag_no_inline)
flag_no_inline = 1;
if (flag_inline_functions)
flag_inline_trees = 2;
if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0)
gfc_option.warn_std |= GFC_STD_GNU;
return false;
}
static void
set_Wall (void)
{
gfc_option.warn_aliasing = 1;
gfc_option.warn_line_truncation = 1;
gfc_option.warn_underflow = 1;
gfc_option.warn_surprising = 1;
gfc_option.warn_unused_labels = 1;
gfc_option.warn_nonstd_intrinsics = 1;
set_Wunused (1);
warn_return_type = 1;
warn_switch = 1;
if (warn_uninitialized != 1)
warn_uninitialized = 2;
}
static void
gfc_handle_module_path_options (const char *arg)
{
if (gfc_option.module_dir != NULL)
{
gfc_status ("gfortran: Only one -M option allowed\n");
exit (3);
}
if (arg == NULL)
{
gfc_status ("gfortran: Directory required after -M\n");
exit (3);
}
gfc_option.module_dir = (char *) gfc_getmem (strlen (arg) + 2);
strcpy (gfc_option.module_dir, arg);
strcat (gfc_option.module_dir, "/");
}
int
gfc_handle_option (size_t scode, const char *arg, int value)
{
int result = 1;
enum opt_code code = (enum opt_code) scode;
if (code == N_OPTS)
return 1;
switch (code)
{
default:
result = 0;
break;
case OPT_Wall:
set_Wall ();
break;
case OPT_Waliasing:
gfc_option.warn_aliasing = 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_Wunderflow:
gfc_option.warn_underflow = value;
break;
case OPT_Wsurprising:
gfc_option.warn_surprising = value;
break;
case OPT_Wunused_labels:
gfc_option.warn_unused_labels = value;
break;
case OPT_fdollar_ok:
gfc_option.flag_dollar_ok = value;
break;
case OPT_fdump_parse_tree:
gfc_option.verbose = value;
break;
case OPT_ffixed_form:
gfc_option.source_form = FORM_FIXED;
break;
case OPT_ffree_form:
gfc_option.source_form = FORM_FREE;
break;
case OPT_funderscoring:
gfc_option.flag_underscoring = value;
break;
case OPT_fsecond_underscore:
gfc_option.flag_second_underscore = value;
break;
case OPT_fimplicit_none:
gfc_option.flag_implicit_none = 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_access_private = value;
break;
case OPT_fno_backend:
gfc_option.flag_no_backend = 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_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_fmax_identifier_length_:
if (value > GFC_MAX_SYMBOL_LEN)
gfc_fatal_error ("Maximum supported idenitifier length is %d",
GFC_MAX_SYMBOL_LEN);
gfc_option.max_identifier_length = value;
break;
case OPT_qkind_:
if (gfc_validate_kind (BT_REAL, value, true) < 0)
gfc_fatal_error ("Argument to -fqkind isn't a valid real kind");
gfc_option.q_kind = 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_I:
gfc_add_include_path (arg);
break;
case OPT_J:
case OPT_M:
gfc_handle_module_path_options (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_identifier_length = 31;
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;
break;
case OPT_std_gnu:
gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
| GFC_STD_F77 | GFC_STD_F95 | GFC_STD_F2003
| GFC_STD_GNU;
gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL;
break;
case OPT_Wnonstd_intrinsics:
gfc_option.warn_nonstd_intrinsics = 1;
break;
}
return result;
}