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ubuntu-buildroot/output/build/host-gcc-initial-11.4.0/gcc/fortran/options.c

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/* Parse and display command line options.
Copyright (C) 2000-2021 Free Software Foundation, Inc.
Contributed by Andy Vaught
This file is part of GCC.
GCC 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 3, or (at your option) any later
version.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "target.h"
#include "tree.h"
#include "gfortran.h"
#include "diagnostic.h" /* For global_dc. */
#include "opts.h"
#include "toplev.h" /* For save_decoded_options. */
#include "cpp.h"
#include "langhooks.h"
gfc_option_t gfc_option;
#define SET_FLAG(flag, condition, on_value, off_value) \
do \
{ \
if (condition) \
flag = (on_value); \
else \
flag = (off_value); \
} while (0)
#define SET_BITFLAG2(m) m
#define SET_BITFLAG(flag, condition, value) \
SET_BITFLAG2 (SET_FLAG (flag, condition, (flag | (value)), (flag & ~(value))))
/* Set flags that control warnings and errors for different
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_F2008 | GFC_STD_F95 | GFC_STD_F77
| GFC_STD_F2008_OBS | GFC_STD_GNU | GFC_STD_LEGACY
| GFC_STD_F2018 | GFC_STD_F2018_DEL | GFC_STD_F2018_OBS;
gfc_option.warn_std = GFC_STD_F2018_DEL | GFC_STD_F95_DEL | GFC_STD_LEGACY;
}
/* Set (or unset) the DEC extension flags. */
static void
set_dec_flags (int value)
{
/* Set (or unset) other DEC compatibility extensions. */
SET_BITFLAG (flag_dollar_ok, value, value);
SET_BITFLAG (flag_cray_pointer, value, value);
SET_BITFLAG (flag_dec_structure, value, value);
SET_BITFLAG (flag_dec_intrinsic_ints, value, value);
SET_BITFLAG (flag_dec_static, value, value);
SET_BITFLAG (flag_dec_math, value, value);
SET_BITFLAG (flag_dec_include, value, value);
SET_BITFLAG (flag_dec_format_defaults, value, value);
SET_BITFLAG (flag_dec_blank_format_item, value, value);
SET_BITFLAG (flag_dec_char_conversions, value, value);
}
/* Finalize DEC flags. */
static void
post_dec_flags (int value)
{
/* Don't warn for legacy code if -fdec is given; however, setting -fno-dec
does not force these warnings. We make one final determination on this
at the end because -std= is always set first; thus, we can avoid
clobbering the user's desired standard settings in gfc_handle_option
e.g. when -fdec and -fno-dec are both given. */
if (value)
{
gfc_option.allow_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL
| GFC_STD_GNU | GFC_STD_LEGACY;
gfc_option.warn_std &= ~(GFC_STD_LEGACY | GFC_STD_F95_DEL);
}
}
/* Enable (or disable) -finit-local-zero. */
static void
set_init_local_zero (int value)
{
gfc_option.flag_init_integer_value = 0;
gfc_option.flag_init_character_value = (char)0;
SET_FLAG (gfc_option.flag_init_integer, value, GFC_INIT_INTEGER_ON,
GFC_INIT_INTEGER_OFF);
SET_FLAG (gfc_option.flag_init_logical, value, GFC_INIT_LOGICAL_FALSE,
GFC_INIT_LOGICAL_OFF);
SET_FLAG (gfc_option.flag_init_character, value, GFC_INIT_CHARACTER_ON,
GFC_INIT_CHARACTER_OFF);
SET_FLAG (flag_init_real, value, GFC_INIT_REAL_ZERO, GFC_INIT_REAL_OFF);
}
/* Return language mask for Fortran options. */
unsigned int
gfc_option_lang_mask (void)
{
return CL_Fortran;
}
/* Initialize options structure OPTS. */
void
gfc_init_options_struct (struct gcc_options *opts)
{
opts->x_flag_errno_math = 0;
opts->frontend_set_flag_errno_math = true;
opts->x_flag_associative_math = -1;
opts->frontend_set_flag_associative_math = true;
}
/* Get ready for options handling. Keep in sync with
libgfortran/runtime/compile_options.c (init_compile_options). */
void
gfc_init_options (unsigned int decoded_options_count,
struct cl_decoded_option *decoded_options)
{
gfc_source_file = NULL;
gfc_option.module_dir = NULL;
gfc_option.source_form = FORM_UNKNOWN;
gfc_option.max_continue_fixed = 255;
gfc_option.max_continue_free = 255;
gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
gfc_option.max_errors = 25;
gfc_option.flag_preprocessed = 0;
gfc_option.flag_d_lines = -1;
set_init_local_zero (0);
gfc_option.fpe = 0;
/* All except GFC_FPE_INEXACT. */
gfc_option.fpe_summary = GFC_FPE_INVALID | GFC_FPE_DENORMAL
| GFC_FPE_ZERO | GFC_FPE_OVERFLOW
| GFC_FPE_UNDERFLOW;
gfc_option.rtcheck = 0;
/* ??? Wmissing-include-dirs is disabled by default in C/C++ but
enabled by default in Fortran. Ideally, we should express this
in .opt, but that is not supported yet. */
SET_OPTION_IF_UNSET (&global_options, &global_options_set,
cpp_warn_missing_include_dirs, 1);
set_dec_flags (0);
set_default_std_flags ();
/* Initialize cpp-related options. */
gfc_cpp_init_options (decoded_options_count, decoded_options);
gfc_diagnostics_init ();
}
/* Determine the source form from the filename extension. We assume
case insensitivity. */
static gfc_source_form
form_from_filename (const char *filename)
{
static const struct
{
const char *extension;
gfc_source_form form;
}
exttype[] =
{
{
".f90", FORM_FREE}
,
{
".f95", FORM_FREE}
,
{
".f03", FORM_FREE}
,
{
".f08", FORM_FREE}
,
{
".f", FORM_FIXED}
,
{
".for", FORM_FIXED}
,
{
".ftn", FORM_FIXED}
,
{
"", FORM_UNKNOWN}
}; /* sentinel value */
gfc_source_form f_form;
const char *fileext;
int i;
/* Find end of file name. Note, filename is either a NULL pointer or
a NUL terminated string. */
i = 0;
while (filename[i] != '\0')
i++;
/* Find last period. */
while (i >= 0 && (filename[i] != '.'))
i--;
/* Did we see a file extension? */
if (i < 0)
return FORM_UNKNOWN; /* Nope */
/* Get file extension and compare it to others. */
fileext = &(filename[i]);
i = -1;
f_form = FORM_UNKNOWN;
do
{
i++;
if (strcasecmp (fileext, exttype[i].extension) == 0)
{
f_form = exttype[i].form;
break;
}
}
while (exttype[i].form != FORM_UNKNOWN);
return f_form;
}
/* Finalize commandline options. */
bool
gfc_post_options (const char **pfilename)
{
const char *filename = *pfilename, *canon_source_file = NULL;
char *source_path;
int i;
/* Finalize DEC flags. */
post_dec_flags (flag_dec);
/* Excess precision other than "fast" requires front-end
support. */
if (flag_excess_precision == EXCESS_PRECISION_STANDARD)
sorry ("%<-fexcess-precision=standard%> for Fortran");
flag_excess_precision = EXCESS_PRECISION_FAST;
/* 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);
if (flag_protect_parens == -1)
flag_protect_parens = !optimize_fast;
/* -Ofast sets implies -fstack-arrays unless an explicit size is set for
stack arrays. */
if (flag_stack_arrays == -1 && flag_max_stack_var_size == -2)
flag_stack_arrays = optimize_fast;
/* By default, disable (re)allocation during assignment for -std=f95,
and enable it for F2003/F2008/GNU/Legacy. */
if (flag_realloc_lhs == -1)
{
if (gfc_option.allow_std & GFC_STD_F2003)
flag_realloc_lhs = 1;
else
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)
flag_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, true);
}
else
gfc_add_include_path (".", true, true, true);
if (canon_source_file != gfc_source_file)
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;
main_input_filename = filename;
gfc_warning_now (0, "Reading file %qs 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 (0, "%<-fd-lines-as-comments%> has no effect "
"in free form");
else if (gfc_option.flag_d_lines == 1)
gfc_warning_now (0, "%<-fd-lines-as-code%> has no effect in free form");
if (warn_line_truncation == -1)
warn_line_truncation = 1;
/* Enable -Werror=line-truncation when -Werror and -Wno-error have
not been set. */
if (warn_line_truncation && !global_options_set.x_warnings_are_errors
&& (global_dc->classify_diagnostic[OPT_Wline_truncation] ==
DK_UNSPECIFIED))
diagnostic_classify_diagnostic (global_dc, OPT_Wline_truncation,
DK_ERROR, UNKNOWN_LOCATION);
}
else
{
/* With -fdec, set -fd-lines-as-comments by default in fixed form. */
if (flag_dec && gfc_option.flag_d_lines == -1)
gfc_option.flag_d_lines = 0;
if (warn_line_truncation == -1)
warn_line_truncation = 0;
}
/* 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 (flag_second_underscore == -1)
flag_second_underscore = flag_f2c;
if (!flag_automatic && flag_max_stack_var_size != -2
&& flag_max_stack_var_size != 0)
gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-fmax-stack-var-size=%d%>",
flag_max_stack_var_size);
else if (!flag_automatic && flag_recursive)
gfc_warning_now (OPT_Woverwrite_recursive, "Flag %<-fno-automatic%> "
"overwrites %<-frecursive%>");
else if (!flag_automatic && (flag_openmp || flag_openacc))
gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-frecursive%> "
"implied by %qs", flag_openmp ? "-fopenmp" : "-fopenacc");
else if (flag_max_stack_var_size != -2 && flag_recursive)
gfc_warning_now (0, "Flag %<-frecursive%> overwrites %<-fmax-stack-var-size=%d%>",
flag_max_stack_var_size);
else if (flag_max_stack_var_size != -2 && (flag_openmp || flag_openacc))
gfc_warning_now (0, "Flag %<-fmax-stack-var-size=%d%> overwrites "
"%<-frecursive%> implied by %qs", flag_max_stack_var_size,
flag_openmp ? "-fopenmp" : "-fopenacc");
/* Implement -frecursive as -fmax-stack-var-size=-1. */
if (flag_recursive)
flag_max_stack_var_size = -1;
/* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */
if (flag_max_stack_var_size == -2 && flag_automatic
&& (flag_openmp || flag_openacc))
{
flag_recursive = 1;
flag_max_stack_var_size = -1;
}
/* Set flag_stack_arrays correctly. */
if (flag_stack_arrays == -1)
flag_stack_arrays = 0;
/* Set default. */
if (flag_max_stack_var_size == -2)
flag_max_stack_var_size = 65536;
/* Implement -fno-automatic as -fmax-stack-var-size=0. */
if (!flag_automatic)
flag_max_stack_var_size = 0;
/* If the user did not specify an inline matmul limit, inline up to the BLAS
limit or up to 30 if no external BLAS is specified. */
if (flag_inline_matmul_limit < 0)
{
if (flag_external_blas)
flag_inline_matmul_limit = flag_blas_matmul_limit;
else
flag_inline_matmul_limit = 30;
}
/* Optimization implies front end optimization, unless the user
specified it directly. */
if (flag_frontend_optimize == -1)
flag_frontend_optimize = optimize && !optimize_debug;
/* Same for front end loop interchange. */
if (flag_frontend_loop_interchange == -1)
flag_frontend_loop_interchange = optimize;
/* Do inline packing by default if optimizing, but not if
optimizing for size. */
if (flag_inline_arg_packing == -1)
flag_inline_arg_packing = optimize && !optimize_size;
if (flag_max_array_constructor < 65535)
flag_max_array_constructor = 65535;
if (flag_fixed_line_length != 0 && flag_fixed_line_length < 7)
gfc_fatal_error ("Fixed line length must be at least seven");
if (flag_free_line_length != 0 && flag_free_line_length < 4)
gfc_fatal_error ("Free line length must be at least three");
if (flag_max_subrecord_length > MAX_SUBRECORD_LENGTH)
gfc_fatal_error ("Maximum subrecord length cannot exceed %d",
MAX_SUBRECORD_LENGTH);
gfc_cpp_post_options ();
if (gfc_option.allow_std & GFC_STD_F2008)
lang_hooks.name = "GNU Fortran2008";
else if (gfc_option.allow_std & GFC_STD_F2003)
lang_hooks.name = "GNU Fortran2003";
return gfc_cpp_preprocess_only ();
}
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 = XCNEWVEC (char, strlen (arg) + 2);
strcpy (gfc_option.module_dir, arg);
gfc_add_include_path (gfc_option.module_dir, true, false, true);
strcat (gfc_option.module_dir, "/");
}
/* Handle options -ffpe-trap= and -ffpe-summary=. */
static void
gfc_handle_fpe_option (const char *arg, bool trap)
{
int result, pos = 0, n;
/* precision is a backwards compatibility alias for inexact. */
static const char * const exception[] = { "invalid", "denormal", "zero",
"overflow", "underflow",
"inexact", "precision", NULL };
static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL,
GFC_FPE_ZERO, GFC_FPE_OVERFLOW,
GFC_FPE_UNDERFLOW, GFC_FPE_INEXACT,
GFC_FPE_INEXACT,
0 };
/* As the default for -ffpe-summary= is nonzero, set it to 0. */
if (!trap)
gfc_option.fpe_summary = 0;
while (*arg)
{
while (*arg == ',')
arg++;
while (arg[pos] && arg[pos] != ',')
pos++;
result = 0;
if (!trap && strncmp ("none", arg, pos) == 0)
{
gfc_option.fpe_summary = 0;
arg += pos;
pos = 0;
continue;
}
else if (!trap && strncmp ("all", arg, pos) == 0)
{
gfc_option.fpe_summary = GFC_FPE_INVALID | GFC_FPE_DENORMAL
| GFC_FPE_ZERO | GFC_FPE_OVERFLOW
| GFC_FPE_UNDERFLOW | GFC_FPE_INEXACT;
arg += pos;
pos = 0;
continue;
}
else
for (n = 0; exception[n] != NULL; n++)
{
if (exception[n] && strncmp (exception[n], arg, pos) == 0)
{
if (trap)
gfc_option.fpe |= opt_exception[n];
else
gfc_option.fpe_summary |= opt_exception[n];
arg += pos;
pos = 0;
result = 1;
break;
}
}
if (!result && !trap)
gfc_fatal_error ("Argument to %<-ffpe-trap%> is not valid: %s", arg);
else if (!result)
gfc_fatal_error ("Argument to %<-ffpe-summary%> is not valid: %s", arg);
}
}
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", "bits", 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,
GFC_RTCHECK_BITS, 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;
}
else if (optname[n] && pos > 3 && gfc_str_startswith (arg, "no-")
&& strncmp (optname[n], arg+3, pos-3) == 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. */
bool
gfc_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value,
int kind ATTRIBUTE_UNUSED, location_t loc ATTRIBUTE_UNUSED,
const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED)
{
bool result = true;
enum opt_code code = (enum opt_code) scode;
if (gfc_cpp_handle_option (scode, arg, value) == 1)
return true;
switch (code)
{
default:
if (cl_options[code].flags & gfc_option_lang_mask ())
break;
result = false;
break;
case OPT_fcheck_array_temporaries:
SET_BITFLAG (gfc_option.rtcheck, value, GFC_RTCHECK_ARRAY_TEMPS);
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_ffixed_form:
gfc_option.source_form = FORM_FIXED;
break;
case OPT_ffree_form:
gfc_option.source_form = FORM_FREE;
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_fintrinsic_modules_path:
case OPT_fintrinsic_modules_path_:
/* This is needed because omp_lib.h is in a directory together
with intrinsic modules. Do no warn because during testing
without an installed compiler, we would get lots of bogus
warnings for a missing include directory. */
gfc_add_include_path (arg, false, false, false);
gfc_add_intrinsic_modules_path (arg);
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_finit_local_zero:
set_init_local_zero (value);
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_integer_:
gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
gfc_option.flag_init_integer_value = strtol (arg, NULL, 10);
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, true);
break;
case OPT_J:
gfc_handle_module_path_options (arg);
break;
case OPT_ffpe_trap_:
gfc_handle_fpe_option (arg, true);
break;
case OPT_ffpe_summary_:
gfc_handle_fpe_option (arg, false);
break;
case OPT_std_f95:
gfc_option.allow_std = GFC_STD_OPT_F95;
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;
warn_ampersand = 1;
warn_tabs = 1;
break;
case OPT_std_f2003:
gfc_option.allow_std = GFC_STD_OPT_F03;
gfc_option.warn_std = GFC_STD_F95_OBS;
gfc_option.max_identifier_length = 63;
warn_ampersand = 1;
warn_tabs = 1;
break;
case OPT_std_f2008:
gfc_option.allow_std = GFC_STD_OPT_F08;
gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS;
gfc_option.max_identifier_length = 63;
warn_ampersand = 1;
warn_tabs = 1;
break;
case OPT_std_f2008ts:
case OPT_std_f2018:
gfc_option.allow_std = GFC_STD_OPT_F18;
gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS
| GFC_STD_F2018_OBS;
gfc_option.max_identifier_length = 63;
warn_ampersand = 1;
warn_tabs = 1;
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_fshort_enums:
/* Handled in language-independent code. */
break;
case OPT_fcheck_:
gfc_handle_runtime_check_option (arg);
break;
case OPT_fdec:
/* Set (or unset) the DEC extension flags. */
set_dec_flags (value);
break;
}
Fortran_handle_option_auto (&global_options, &global_options_set,
scode, arg, value,
gfc_option_lang_mask (), kind,
loc, handlers, global_dc);
return result;
}
/* Return a string with the options passed to the compiler; used for
Fortran's compiler_options() intrinsic. */
char *
gfc_get_option_string (void)
{
unsigned j;
size_t len, pos;
char *result;
/* Allocate and return a one-character string with '\0'. */
if (!save_decoded_options_count)
return XCNEWVEC (char, 1);
/* Determine required string length. */
len = 0;
for (j = 1; j < save_decoded_options_count; j++)
{
switch (save_decoded_options[j].opt_index)
{
case OPT_o:
case OPT_d:
case OPT_dumpbase:
case OPT_dumpbase_ext:
case OPT_dumpdir:
case OPT_quiet:
case OPT_version:
case OPT_fintrinsic_modules_path:
case OPT_fintrinsic_modules_path_:
/* Ignore these. */
break;
default:
/* Ignore file names. */
if (save_decoded_options[j].orig_option_with_args_text[0] == '-')
len += 1
+ strlen (save_decoded_options[j].orig_option_with_args_text);
}
}
result = XCNEWVEC (char, len);
pos = 0;
for (j = 1; j < save_decoded_options_count; j++)
{
switch (save_decoded_options[j].opt_index)
{
case OPT_o:
case OPT_d:
case OPT_dumpbase:
case OPT_dumpbase_ext:
case OPT_dumpdir:
case OPT_quiet:
case OPT_version:
case OPT_fintrinsic_modules_path:
case OPT_fintrinsic_modules_path_:
/* Ignore these. */
continue;
case OPT_cpp_:
/* Use "-cpp" rather than "-cpp=<temporary file>". */
len = 4;
break;
default:
/* Ignore file names. */
if (save_decoded_options[j].orig_option_with_args_text[0] != '-')
continue;
len = strlen (save_decoded_options[j].orig_option_with_args_text);
}
memcpy (&result[pos], save_decoded_options[j].orig_option_with_args_text, len);
pos += len;
result[pos++] = ' ';
}
result[--pos] = '\0';
return result;
}
#undef SET_BITFLAG
#undef SET_BITFLAG2
#undef SET_FLAG
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