/* Parse and display command line options.
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Andy Vaught
#include "tree-inline.h"
#include "gfortran.h"
#include "target.h"
+#include "cpp.h"
+#include "toplev.h"
+#include "tm.h"
gfc_option_t gfc_option;
/* Set flags that control warnings and errors for different
- Fortran standards to their default values. */
+ Fortran standards to their default values. Keep in sync with
+ libgfortran/runtime/compile_options.c (init_compile_options). */
static void
set_default_std_flags (void)
{
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_STD_LEGACY;
+ | GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F95 | GFC_STD_F77
+ | GFC_STD_GNU | GFC_STD_LEGACY;
gfc_option.warn_std = GFC_STD_F95_DEL | GFC_STD_LEGACY;
}
-/* Get ready for options handling. */
+
+/* Get ready for options handling. Keep in sync with
+ libgfortran/runtime/compile_options.c (init_compile_options). */
unsigned int
-gfc_init_options (unsigned int argc ATTRIBUTE_UNUSED,
- const char **argv ATTRIBUTE_UNUSED)
+gfc_init_options (unsigned int argc, const char **argv)
{
gfc_source_file = NULL;
gfc_option.module_dir = NULL;
gfc_option.source_form = FORM_UNKNOWN;
gfc_option.fixed_line_length = 72;
gfc_option.free_line_length = 132;
- gfc_option.max_continue_fixed = 19;
- gfc_option.max_continue_free = 39;
+ gfc_option.max_continue_fixed = 255;
+ gfc_option.max_continue_free = 255;
gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
gfc_option.max_subrecord_length = 0;
- gfc_option.convert = CONVERT_NATIVE;
+ gfc_option.flag_max_array_constructor = 65535;
+ gfc_option.convert = GFC_CONVERT_NATIVE;
gfc_option.record_marker = 0;
- gfc_option.verbose = 0;
+ gfc_option.dump_parse_tree = 0;
gfc_option.warn_aliasing = 0;
gfc_option.warn_ampersand = 0;
gfc_option.warn_character_truncation = 0;
+ gfc_option.warn_array_temp = 0;
gfc_option.warn_conversion = 0;
gfc_option.warn_implicit_interface = 0;
gfc_option.warn_line_truncation = 0;
gfc_option.warn_surprising = 0;
gfc_option.warn_tabs = 1;
gfc_option.warn_underflow = 1;
+ gfc_option.warn_intrinsic_shadow = 0;
+ gfc_option.warn_intrinsics_std = 0;
+ gfc_option.warn_align_commons = 1;
gfc_option.max_errors = 25;
gfc_option.flag_all_intrinsics = 0;
gfc_option.flag_default_real = 0;
gfc_option.flag_dollar_ok = 0;
gfc_option.flag_underscoring = 1;
+ gfc_option.flag_whole_file = 0;
gfc_option.flag_f2c = 0;
gfc_option.flag_second_underscore = -1;
gfc_option.flag_implicit_none = 0;
- gfc_option.flag_max_stack_var_size = 32768;
+
+ /* Default value of flag_max_stack_var_size is set in gfc_post_options. */
+ gfc_option.flag_max_stack_var_size = -2;
+
gfc_option.flag_range_check = 1;
gfc_option.flag_pack_derived = 0;
gfc_option.flag_repack_arrays = 0;
gfc_option.flag_preprocessed = 0;
gfc_option.flag_automatic = 1;
- gfc_option.flag_backslash = 1;
+ gfc_option.flag_backslash = 0;
gfc_option.flag_module_private = 0;
gfc_option.flag_backtrace = 0;
gfc_option.flag_allow_leading_underscore = 0;
gfc_option.flag_d_lines = -1;
gfc_option.flag_openmp = 0;
gfc_option.flag_sign_zero = 1;
-
+ gfc_option.flag_recursive = 0;
+ gfc_option.flag_init_integer = GFC_INIT_INTEGER_OFF;
+ gfc_option.flag_init_integer_value = 0;
+ gfc_option.flag_init_real = GFC_INIT_REAL_OFF;
+ gfc_option.flag_init_logical = GFC_INIT_LOGICAL_OFF;
+ gfc_option.flag_init_character = GFC_INIT_CHARACTER_OFF;
+ gfc_option.flag_init_character_value = (char)0;
+ gfc_option.flag_align_commons = 1;
+
gfc_option.fpe = 0;
+ gfc_option.rtcheck = 0;
/* Argument pointers cannot point to anything but their argument. */
flag_argument_noalias = 3;
set_default_std_flags ();
- gfc_option.warn_nonstd_intrinsics = 0;
-
/* -fshort-enums can be default on some targets. */
- gfc_option.fshort_enums = targetm.default_short_enums ();
+ flag_short_enums = targetm.default_short_enums ();
+
+ /* Initialize cpp-related options. */
+ gfc_cpp_init_options(argc, argv);
return CL_Fortran;
}
".f03", FORM_FREE}
,
{
+ ".f08", FORM_FREE}
+ ,
+ {
".f", FORM_FIXED}
,
{
".for", FORM_FIXED}
,
{
+ ".ftn", FORM_FIXED}
+ ,
+ {
"", FORM_UNKNOWN}
}; /* sentinel value */
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 || flag_whopr)
+ gfc_option.flag_whole_file = 1;
+
+ /* -fbounds-check is equivalent to -fcheck=bounds */
+ if (flag_bounds_check)
+ gfc_option.rtcheck |= GFC_RTCHECK_BOUNDS;
+
+ if (flag_compare_debug)
+ gfc_option.dump_parse_tree = 0;
+
/* Verify the input file name. */
if (!filename || strcmp (filename, "-") == 0)
{
if (i != 0)
{
- source_path = alloca (i + 1);
+ source_path = (char *) alloca (i + 1);
memcpy (source_path, canon_source_file, i);
source_path[i] = 0;
- gfc_add_include_path (source_path, true);
+ gfc_add_include_path (source_path, true, true);
}
else
- gfc_add_include_path (".", true);
+ gfc_add_include_path (".", true, true);
if (canon_source_file != gfc_source_file)
- gfc_free (CONST_CAST (canon_source_file));
+ gfc_free (CONST_CAST (char *, canon_source_file));
/* Decide which form the file will be read in as. */
gfc_warning_now ("'-fd-lines-as-code' has no effect in free form");
}
- flag_inline_trees = 1;
-
- /* Use tree inlining. */
- if (!flag_no_inline)
- flag_no_inline = 1;
- if (flag_inline_functions)
- flag_inline_trees = 2;
-
/* 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;
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);
+
+ /* 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.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;
gfc_option.warn_tabs = 0;
}
- if (gfc_option.flag_all_intrinsics)
- gfc_option.warn_nonstd_intrinsics = 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;
}
gfc_option.warn_aliasing = setting;
gfc_option.warn_ampersand = setting;
gfc_option.warn_line_truncation = setting;
- gfc_option.warn_nonstd_intrinsics = setting;
gfc_option.warn_surprising = setting;
gfc_option.warn_tabs = !setting;
gfc_option.warn_underflow = setting;
+ gfc_option.warn_intrinsic_shadow = setting;
+ gfc_option.warn_intrinsics_std = setting;
gfc_option.warn_character_truncation = setting;
- set_Wunused (setting);
+ warn_unused = setting;
warn_return_type = setting;
warn_switch = setting;
{
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_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);
+ gfc_add_include_path (gfc_option.module_dir, true, false);
}
}
+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", NULL };
+ static const int optmask[] = { GFC_RTCHECK_ALL, GFC_RTCHECK_BOUNDS,
+ GFC_RTCHECK_ARRAY_TEMPS,
+ GFC_RTCHECK_RECURSION, GFC_RTCHECK_DO,
+ GFC_RTCHECK_POINTER,
+ 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);
+ }
+}
+
+
/* Handle command-line options. Returns 0 if unrecognized, 1 if
recognized and handled. */
if (code == N_OPTS)
return 1;
+ if (gfc_cpp_handle_option (scode, arg, value) == 1)
+ return 1;
+
switch (code)
{
default:
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;
gfc_option.warn_implicit_interface = value;
break;
+ case OPT_Wimplicit_procedure:
+ gfc_option.warn_implicit_procedure = 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;
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;
gfc_option.flag_backtrace = value;
break;
+ case OPT_fcheck_array_temporaries:
+ gfc_option.rtcheck |= GFC_RTCHECK_ARRAY_TEMPS;
+ break;
+
case OPT_fdump_core:
gfc_option.flag_dump_core = value;
break;
break;
case OPT_fdump_parse_tree:
- gfc_option.verbose = value;
+ gfc_option.dump_parse_tree = value;
break;
case OPT_ffixed_form:
gfc_option.flag_underscoring = value;
break;
+ case OPT_fwhole_file:
+ gfc_option.flag_whole_file = 1;
+ break;
+
case OPT_fsecond_underscore:
gfc_option.flag_second_underscore = value;
break;
break;
case OPT_fintrinsic_modules_path:
- gfc_add_include_path (arg, false);
+ 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;
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, "snan"))
+ gfc_option.flag_init_real = GFC_INIT_REAL_SNAN;
+ 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);
+ gfc_add_include_path (arg, true, false);
break;
case OPT_J:
- case OPT_M:
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;
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_continue_fixed = 255;
- gfc_option.max_continue_free = 255;
+ 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;
gfc_option.warn_std = 0;
break;
- case OPT_Wnonstd_intrinsics:
- gfc_option.warn_nonstd_intrinsics = value;
+ case OPT_Wintrinsics_std:
+ gfc_option.warn_intrinsics_std = value;
break;
case OPT_fshort_enums:
- gfc_option.fshort_enums = 1;
+ flag_short_enums = 1;
break;
case OPT_fconvert_little_endian:
- gfc_option.convert = CONVERT_LITTLE;
+ gfc_option.convert = GFC_CONVERT_LITTLE;
break;
case OPT_fconvert_big_endian:
- gfc_option.convert = CONVERT_BIG;
+ gfc_option.convert = GFC_CONVERT_BIG;
break;
case OPT_fconvert_native:
- gfc_option.convert = CONVERT_NATIVE;
+ gfc_option.convert = GFC_CONVERT_NATIVE;
break;
case OPT_fconvert_swap:
- gfc_option.convert = CONVERT_SWAP;
+ gfc_option.convert = GFC_CONVERT_SWAP;
break;
case OPT_frecord_marker_4:
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;
+
+ case OPT_fcheck_:
+ gfc_handle_runtime_check_option (arg);
+ break;
+
}
return result;