/* Common initialization before calling option handlers. */
void
c_common_init_options (unsigned int decoded_options_count,
struct cl_decoded_option *decoded_options)
{
unsigned int i;
struct cpp_callbacks *cb;
g_string_concat_db
= new (ggc_alloc <string_concat_db> ()) string_concat_db ();
parse_in = cpp_create_reader (c_dialect_cxx () ? CLK_GNUCXX: CLK_GNUC89,
ident_hash, line_table);
cb = cpp_get_callbacks (parse_in);
cb->error = c_cpp_error;
cpp_opts = cpp_get_options (parse_in);
cpp_opts->dollars_in_ident = DOLLARS_IN_IDENTIFIERS;
cpp_opts->objc = c_dialect_objc ();
/* Reset to avoid warnings on internal definitions. We set it just
before passing on command-line options to cpplib. */
cpp_opts->warn_dollars = 0;
deferred_opts = XNEWVEC (struct deferred_opt, decoded_options_count);
if (c_language == clk_c)
{
/* The default for C is gnu11. */
set_std_c11 (false /* ISO */);
/* If preprocessing assembly language, accept any of the C-family
front end options since the driver may pass them through. */
for (i = 1; i < decoded_options_count; i++)
if (decoded_options[i].opt_index == OPT_lang_asm)
{
accept_all_c_family_options = true;
break;
}
}
/* Set C++ standard to C++14 if not specified on the command line. */
if (c_dialect_cxx ())
set_std_cxx14 (/*ISO*/false);
global_dc->colorize_source_p = true;
}
/* Handle switch SCODE with argument ARG. VALUE is true, unless no-
form of an -f or -W option was given. Returns false if the switch was
invalid, true if valid. Use HANDLERS in recursive handle_option calls. */
bool
c_common_handle_option (size_t scode, const char *arg, int value,
int kind, location_t loc,
const struct cl_option_handlers *handlers)
{
const struct cl_option *option = &cl_options[scode];
enum opt_code code = (enum opt_code) scode;
bool result = true;
/* Prevent resetting the language standard to a C dialect when the driver
has already determined that we're looking at assembler input. */
bool preprocessing_asm_p = (cpp_get_options (parse_in)->lang == CLK_ASM);
switch (code)
{
default:
if (cl_options[code].flags & c_family_lang_mask)
{
if ((option->flags & CL_TARGET)
&& ! targetcm.handle_c_option (scode, arg, value))
result = false;
break;
}
result = false;
break;
case OPT__output_pch_:
pch_file = arg;
break;
case OPT_A:
defer_opt (code, arg);
break;
case OPT_C:
cpp_opts->discard_comments = 0;
break;
case OPT_CC:
cpp_opts->discard_comments = 0;
cpp_opts->discard_comments_in_macro_exp = 0;
break;
case OPT_D:
defer_opt (code, arg);
break;
case OPT_H:
cpp_opts->print_include_names = 1;
break;
case OPT_F:
TARGET_OPTF (xstrdup (arg));
break;
case OPT_I:
if (strcmp (arg, "-"))
add_path (xstrdup (arg), BRACKET, 0, true);
else
{
if (quote_chain_split)
error ("-I- specified twice");
quote_chain_split = true;
split_quote_chain ();
inform (input_location, "obsolete option -I- used, please use -iquote instead");
}
break;
case OPT_M:
case OPT_MM:
/* When doing dependencies with -M or -MM, suppress normal
preprocessed output, but still do -dM etc. as software
depends on this. Preprocessed output does occur if -MD, -MMD
or environment var dependency generation is used. */
cpp_opts->deps.style = (code == OPT_M ? DEPS_SYSTEM: DEPS_USER);
flag_no_output = 1;
break;
case OPT_MD:
case OPT_MMD:
cpp_opts->deps.style = (code == OPT_MD ? DEPS_SYSTEM: DEPS_USER);
cpp_opts->deps.need_preprocessor_output = true;
deps_file = arg;
break;
case OPT_MF:
deps_seen = true;
deps_file = arg;
break;
case OPT_MG:
deps_seen = true;
cpp_opts->deps.missing_files = true;
break;
case OPT_MP:
deps_seen = true;
cpp_opts->deps.phony_targets = true;
break;
case OPT_MQ:
case OPT_MT:
deps_seen = true;
defer_opt (code, arg);
break;
case OPT_P:
flag_no_line_commands = 1;
break;
case OPT_U:
defer_opt (code, arg);
break;
case OPT_Wall:
/* ??? Don't add new options here. Use LangEnabledBy in c.opt. */
cpp_opts->warn_trigraphs = value;
cpp_opts->warn_comments = value;
cpp_opts->warn_num_sign_change = value;
break;
case OPT_Wbuiltin_macro_redefined:
cpp_opts->warn_builtin_macro_redefined = value;
break;
case OPT_Wcomment:
cpp_opts->warn_comments = value;
break;
case OPT_Wc___compat:
cpp_opts->warn_cxx_operator_names = value;
break;
case OPT_Wdeprecated:
cpp_opts->cpp_warn_deprecated = value;
break;
case OPT_Wendif_labels:
cpp_opts->warn_endif_labels = value;
break;
case OPT_Winvalid_pch:
cpp_opts->warn_invalid_pch = value;
break;
case OPT_Wliteral_suffix:
cpp_opts->warn_literal_suffix = value;
break;
case OPT_Wlong_long:
cpp_opts->cpp_warn_long_long = value;
break;
case OPT_Wmissing_include_dirs:
cpp_opts->warn_missing_include_dirs = value;
break;
case OPT_Wmultichar:
cpp_opts->warn_multichar = value;
break;
case OPT_Wnormalized_:
if (kind == DK_ERROR)
{
gcc_assert (!arg);
inform (input_location, "-Werror=normalized=: set -Wnormalized=nfc");
cpp_opts->warn_normalize = normalized_C;
}
else
{
if (!value || (arg && strcasecmp (arg, "none") == 0))
cpp_opts->warn_normalize = normalized_none;
else if (!arg || strcasecmp (arg, "nfkc") == 0)
cpp_opts->warn_normalize = normalized_KC;
else if (strcasecmp (arg, "id") == 0)
cpp_opts->warn_normalize = normalized_identifier_C;
else if (strcasecmp (arg, "nfc") == 0)
cpp_opts->warn_normalize = normalized_C;
else
error ("argument %qs to %<-Wnormalized%> not recognized", arg);
break;
}
case OPT_Wtraditional:
cpp_opts->cpp_warn_traditional = value;
break;
case OPT_Wtrigraphs:
cpp_opts->warn_trigraphs = value;
break;
case OPT_Wundef:
cpp_opts->warn_undef = value;
break;
case OPT_Wunknown_pragmas:
/* Set to greater than 1, so that even unknown pragmas in
system headers will be warned about. */
/* ??? There is no way to handle this automatically for now. */
warn_unknown_pragmas = value * 2;
break;
case OPT_ansi:
if (!c_dialect_cxx ())
set_std_c89 (false, true);
else
set_std_cxx98 (true);
break;
case OPT_d:
handle_OPT_d (arg);
break;
case OPT_fcanonical_system_headers:
cpp_opts->canonical_system_headers = value;
break;
case OPT_fcond_mismatch:
if (!c_dialect_cxx ())
{
flag_cond_mismatch = value;
break;
}
warning (0, "switch %qs is no longer supported", option->opt_text);
break;
case OPT_fbuiltin_:
if (value)
result = false;
else
disable_builtin_function (arg);
break;
case OPT_fdirectives_only:
cpp_opts->directives_only = value;
break;
case OPT_fdollars_in_identifiers:
cpp_opts->dollars_in_ident = value;
break;
case OPT_ffreestanding:
value = !value;
/* Fall through.... */
case OPT_fhosted:
flag_hosted = value;
flag_no_builtin = !value;
break;
case OPT_fconstant_string_class_:
constant_string_class_name = arg;
break;
case OPT_fextended_identifiers:
cpp_opts->extended_identifiers = value;
break;
case OPT_foperator_names:
cpp_opts->operator_names = value;
break;
case OPT_fpch_deps:
cpp_opts->restore_pch_deps = value;
break;
case OPT_fpch_preprocess:
flag_pch_preprocess = value;
break;
case OPT_fpermissive:
flag_permissive = value;
global_dc->permissive = value;
break;
case OPT_fpreprocessed:
cpp_opts->preprocessed = value;
break;
case OPT_fdebug_cpp:
cpp_opts->debug = 1;
break;
case OPT_ftrack_macro_expansion:
if (value)
value = 2;
/* Fall Through. */
case OPT_ftrack_macro_expansion_:
if (arg && *arg != '\0')
cpp_opts->track_macro_expansion = value;
else
cpp_opts->track_macro_expansion = 2;
break;
case OPT_frepo:
flag_use_repository = value;
if (value)
flag_implicit_templates = 0;
break;
case OPT_ftabstop_:
/* It is documented that we silently ignore silly values. */
if (value >= 1 && value <= 100)
cpp_opts->tabstop = value;
break;
case OPT_fexec_charset_:
cpp_opts->narrow_charset = arg;
break;
case OPT_fwide_exec_charset_:
cpp_opts->wide_charset = arg;
break;
case OPT_finput_charset_:
cpp_opts->input_charset = arg;
break;
case OPT_ftemplate_depth_:
max_tinst_depth = value;
break;
case OPT_fvisibility_inlines_hidden:
visibility_options.inlines_hidden = value;
break;
case OPT_femit_struct_debug_baseonly:
set_struct_debug_option (&global_options, loc, "base");
break;
case OPT_femit_struct_debug_reduced:
set_struct_debug_option (&global_options, loc,
"dir:ord:sys,dir:gen:any,ind:base");
break;
case OPT_femit_struct_debug_detailed_:
set_struct_debug_option (&global_options, loc, arg);
break;
case OPT_fext_numeric_literals:
cpp_opts->ext_numeric_literals = value;
break;
case OPT_idirafter:
add_path (xstrdup (arg), AFTER, 0, true);
break;
case OPT_imacros:
case OPT_include:
defer_opt (code, arg);
break;
case OPT_imultilib:
imultilib = arg;
break;
case OPT_iprefix:
iprefix = arg;
break;
case OPT_iquote:
add_path (xstrdup (arg), QUOTE, 0, true);
break;
case OPT_isysroot:
sysroot = arg;
break;
case OPT_isystem:
add_path (xstrdup (arg), SYSTEM, 0, true);
break;
case OPT_iwithprefix:
add_prefixed_path (arg, SYSTEM);
break;
case OPT_iwithprefixbefore:
add_prefixed_path (arg, BRACKET);
break;
case OPT_lang_asm:
cpp_set_lang (parse_in, CLK_ASM);
cpp_opts->dollars_in_ident = false;
break;
case OPT_nostdinc:
std_inc = false;
break;
case OPT_nostdinc__:
std_cxx_inc = false;
break;
case OPT_o:
if (!out_fname)
out_fname = arg;
else
error ("output filename specified twice");
break;
/* We need to handle the -Wpedantic switch here, rather than in
c_common_post_options, so that a subsequent -Wno-endif-labels
is not overridden. */
case OPT_Wpedantic:
cpp_opts->cpp_pedantic = 1;
cpp_opts->warn_endif_labels = 1;
break;
case OPT_print_objc_runtime_info:
print_struct_values = 1;
break;
case OPT_remap:
cpp_opts->remap = 1;
break;
case OPT_std_c__98:
case OPT_std_gnu__98:
if (!preprocessing_asm_p)
set_std_cxx98 (code == OPT_std_c__98 /* ISO */);
break;
case OPT_std_c__11:
case OPT_std_gnu__11:
if (!preprocessing_asm_p)
{
set_std_cxx11 (code == OPT_std_c__11 /* ISO */);
if (code == OPT_std_c__11)
cpp_opts->ext_numeric_literals = 0;
}
break;
case OPT_std_c__1y:
case OPT_std_gnu__1y:
if (!preprocessing_asm_p)
{
set_std_cxx1y (code == OPT_std_c__1y /* ISO */);
if (code == OPT_std_c__1y)
cpp_opts->ext_numeric_literals = 0;
}
break;
case OPT_std_c90:
case OPT_std_iso9899_199409:
if (!preprocessing_asm_p)
set_std_c89 (code == OPT_std_iso9899_199409 /* c94 */, true /* ISO */);
break;
case OPT_std_gnu90:
if (!preprocessing_asm_p)
set_std_c89 (false /* c94 */, false /* ISO */);
break;
case OPT_std_c99:
if (!preprocessing_asm_p)
set_std_c99 (true /* ISO */);
break;
case OPT_std_gnu99:
if (!preprocessing_asm_p)
set_std_c99 (false /* ISO */);
break;
case OPT_std_c11:
if (!preprocessing_asm_p)
set_std_c11 (true /* ISO */);
break;
case OPT_std_gnu11:
if (!preprocessing_asm_p)
set_std_c11 (false /* ISO */);
break;
case OPT_trigraphs:
cpp_opts->trigraphs = 1;
break;
case OPT_traditional_cpp:
cpp_opts->traditional = 1;
break;
case OPT_v:
verbose = true;
break;
case OPT_Wabi:
warn_psabi = value;
break;
}
switch (c_language)
{
case clk_c:
C_handle_option_auto (&global_options, &global_options_set,
scode, arg, value,
c_family_lang_mask, kind,
loc, handlers, global_dc);
break;
case clk_objc:
ObjC_handle_option_auto (&global_options, &global_options_set,
scode, arg, value,
c_family_lang_mask, kind,
loc, handlers, global_dc);
break;
case clk_cxx:
CXX_handle_option_auto (&global_options, &global_options_set,
scode, arg, value,
c_family_lang_mask, kind,
loc, handlers, global_dc);
break;
case clk_objcxx:
ObjCXX_handle_option_auto (&global_options, &global_options_set,
scode, arg, value,
c_family_lang_mask, kind,
loc, handlers, global_dc);
break;
default:
gcc_unreachable ();
}
return result;
}