/* Common initialization before parsing options. */
unsigned int
c_common_init_options (unsigned int argc, const char **argv)
{
static const unsigned int lang_flags[] = {CL_C, CL_ObjC, CL_CXX, CL_ObjCXX};
unsigned int i, result;
/* This is conditionalized only because that is the way the front
ends used to do it. Maybe this should be unconditional? */
if (c_dialect_cxx ())
{
/* By default wrap lines at 80 characters. Is getenv
("COLUMNS") preferable? */
diagnostic_line_cutoff (global_dc) = 80;
/* By default, emit location information once for every
diagnostic message. */
diagnostic_prefixing_rule (global_dc) = DIAGNOSTICS_SHOW_PREFIX_ONCE;
}
parse_in = cpp_create_reader (c_dialect_cxx () ? CLK_GNUCXX: CLK_GNUC89,
ident_hash, &line_table);
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;
flag_exceptions = c_dialect_cxx ();
warn_pointer_arith = c_dialect_cxx ();
warn_write_strings = c_dialect_cxx();
deferred_opts = XNEWVEC (struct deferred_opt, argc);
result = lang_flags[c_language];
if (c_language == clk_c)
{
/* If preprocessing assembly language, accept any of the C-family
front end options since the driver may pass them through. */
for (i = 1; i < argc; i++)
if (! strcmp (argv[i], "-lang-asm"))
{
result |= CL_C | CL_ObjC | CL_CXX | CL_ObjCXX;
break;
}
#ifdef CL_Fortran
for (i = 1; i < argc; i++)
if (! strcmp (argv[i], "-lang-fortran"))
{
result |= CL_Fortran;
break;
}
#endif
}
return result;
}
/* Common diagnostics initialization. */
void
c_common_initialize_diagnostics (diagnostic_context *context)
{
/* This is conditionalized only because that is the way the front
ends used to do it. Maybe this should be unconditional? */
if (c_dialect_cxx ())
{
/* By default wrap lines at 80 characters. Is getenv
("COLUMNS") preferable? */
diagnostic_line_cutoff (context) = 80;
/* By default, emit location information once for every
diagnostic message. */
diagnostic_prefixing_rule (context) = DIAGNOSTICS_SHOW_PREFIX_ONCE;
}
context->opt_permissive = OPT_fpermissive;
}
static int
common_handle_option (size_t scode, const char *arg, int value)
{
enum opt_code code = (enum opt_code) scode;
switch (code)
{
/* APPLE LOCAL begin fat builds */
case OPT_arch:
/* Ignore for now. */
break;
/* APPLE LOCAL end fat builds */
case OPT__help:
print_help ();
exit_after_options = true;
break;
case OPT__param:
handle_param (arg);
break;
case OPT__target_help:
display_target_options ();
exit_after_options = true;
break;
case OPT__version:
print_version (stderr, "");
exit_after_options = true;
break;
case OPT_G:
g_switch_value = value;
g_switch_set = true;
break;
case OPT_O:
case OPT_Os:
/* Currently handled in a prescan. */
break;
case OPT_W:
/* For backward compatibility, -W is the same as -Wextra. */
set_Wextra (value);
break;
case OPT_Wextra:
set_Wextra (value);
break;
case OPT_Wlarger_than_:
larger_than_size = value;
warn_larger_than = value != -1;
break;
case OPT_Wstrict_aliasing:
case OPT_Wstrict_aliasing_:
warn_strict_aliasing = value;
break;
case OPT_Wunused:
set_Wunused (value);
break;
case OPT_aux_info:
case OPT_aux_info_:
aux_info_file_name = arg;
flag_gen_aux_info = 1;
break;
case OPT_auxbase:
aux_base_name = arg;
break;
/* APPLE LOCAL begin LLVM */
case OPT_mllvm:
llvm_optns = arg;
break;
/* APPLE LOCAL end LLVM */
case OPT_auxbase_strip:
{
char *tmp = xstrdup (arg);
strip_off_ending (tmp, strlen (tmp));
if (tmp[0])
aux_base_name = tmp;
}
break;
case OPT_d:
decode_d_option (arg);
break;
case OPT_dumpbase:
dump_base_name = arg;
break;
/* APPLE LOCAL begin optimization pragmas 3124235/3420242 */
/* APPLE LOCAL end optimization pragmas 3124235/3420242 */
/* APPLE LOCAL begin falign-jumps-max-skip */
case OPT_falign_jumps_max_skip_:
align_jumps_max_skip = value;
break;
case OPT_falign_loops_max_skip_:
align_loops_max_skip = value;
break;
/* APPLE LOCAL end falign-jumps-max-skip */
/* APPLE LOCAL begin optimization pragmas 3124235/3420242 */
/* APPLE LOCAL end optimization pragmas 3124235/3420242 */
/* APPLE LOCAL begin predictive compilation */
case OPT_fpredictive_compilation:
predictive_compilation = 0;
break;
case OPT_fpredictive_compilation_:
{
char* buf = xmalloc (strlen(arg) + 1);
sprintf (buf, "%d", value);
if (strcmp(buf, arg))
{
error ("argument to \"-fpredictive-compilation=\" should be a valid non-negative integer instead of \"%s\"", arg);
value = 0;
}
free(buf);
predictive_compilation = value;
break;
}
/* APPLE LOCAL end predictive compilation */
case OPT_fbranch_probabilities:
flag_branch_probabilities_set = true;
break;
case OPT_fcall_used_:
fix_register (arg, 0, 1);
break;
case OPT_fcall_saved_:
fix_register (arg, 0, 0);
break;
case OPT_fdiagnostics_show_location_:
if (!strcmp (arg, "once"))
diagnostic_prefixing_rule (global_dc) = DIAGNOSTICS_SHOW_PREFIX_ONCE;
else if (!strcmp (arg, "every-line"))
diagnostic_prefixing_rule (global_dc)
= DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE;
else
return 0;
break;
case OPT_fdump_:
if (!dump_switch_p (arg))
return 0;
break;
case OPT_ffast_math:
set_fast_math_flags (value);
break;
case OPT_ffixed_:
fix_register (arg, 1, 1);
break;
case OPT_finline_limit_:
case OPT_finline_limit_eq:
set_param_value ("max-inline-insns-single", value / 2);
set_param_value ("max-inline-insns-auto", value / 2);
break;
case OPT_fmessage_length_:
pp_set_line_maximum_length (global_dc->printer, value);
break;
case OPT_fpack_struct_:
if (value <= 0 || (value & (value - 1)) || value > 16)
error("structure alignment must be a small power of two, not %d", value);
else
{
initial_max_fld_align = value;
maximum_field_alignment = value * BITS_PER_UNIT;
}
break;
case OPT_fpeel_loops:
flag_peel_loops_set = true;
break;
case OPT_fprofile_arcs:
profile_arc_flag_set = true;
break;
/* APPLE LOCAL begin add fuse-profile */
case OPT_fuse_profile:
/* APPLE LOCAL end add fuse-profile */
case OPT_fprofile_use:
if (!flag_branch_probabilities_set)
flag_branch_probabilities = value;
if (!flag_profile_values_set)
flag_profile_values = value;
if (!flag_unroll_loops_set)
flag_unroll_loops = value;
if (!flag_peel_loops_set)
flag_peel_loops = value;
if (!flag_tracer_set)
flag_tracer = value;
if (!flag_value_profile_transformations_set)
flag_value_profile_transformations = value;
#ifdef HAVE_prefetch
if (0 && !flag_speculative_prefetching_set)
flag_speculative_prefetching = value;
#endif
break;
/* APPLE LOCAL begin add fcreate-profile */
case OPT_fcreate_profile:
/* APPLE LOCAL end add fcreate-profile */
case OPT_fprofile_generate:
if (!profile_arc_flag_set)
profile_arc_flag = value;
if (!flag_profile_values_set)
flag_profile_values = value;
if (!flag_value_profile_transformations_set)
flag_value_profile_transformations = value;
if (!flag_unroll_loops_set)
flag_unroll_loops = value;
#ifdef HAVE_prefetch
if (0 && !flag_speculative_prefetching_set)
flag_speculative_prefetching = value;
#endif
break;
case OPT_fprofile_values:
flag_profile_values_set = true;
break;
case OPT_fvisibility_:
{
if (!strcmp(arg, "default"))
default_visibility = VISIBILITY_DEFAULT;
else if (!strcmp(arg, "internal"))
default_visibility = VISIBILITY_INTERNAL;
else if (!strcmp(arg, "hidden"))
default_visibility = VISIBILITY_HIDDEN;
else if (!strcmp(arg, "protected"))
default_visibility = VISIBILITY_PROTECTED;
else
error ("unrecognised visibility value \"%s\"", arg);
}
break;
case OPT_fvpt:
flag_value_profile_transformations_set = true;
break;
case OPT_fspeculative_prefetching:
flag_speculative_prefetching_set = true;
break;
case OPT_frandom_seed:
/* The real switch is -fno-random-seed. */
if (value)
return 0;
flag_random_seed = NULL;
break;
case OPT_frandom_seed_:
flag_random_seed = arg;
break;
/* APPLE LOCAL begin optimization pragmas 3124235/3420242 */
/* APPLE LOCAL end optimization pragmas 3124235/3420242 */
case OPT_fsched_stalled_insns_:
flag_sched_stalled_insns = value;
if (flag_sched_stalled_insns == 0)
flag_sched_stalled_insns = -1;
break;
/* APPLE LOCAL begin optimization pragmas 3124235/3420242 */
/* APPLE LOCAL end optimization pragmas 3124235/3420242 */
case OPT_fstack_limit:
/* The real switch is -fno-stack-limit. */
if (value)
return 0;
stack_limit_rtx = NULL_RTX;
break;
case OPT_fstack_limit_register_:
{
int reg = decode_reg_name (arg);
if (reg < 0)
error ("unrecognized register name \"%s\"", arg);
else
stack_limit_rtx = gen_rtx_REG (Pmode, reg);
}
break;
case OPT_fstack_limit_symbol_:
stack_limit_rtx = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (arg));
break;
case OPT_ftree_vectorizer_verbose_:
vect_set_verbosity_level (arg);
break;
case OPT_ftls_model_:
if (!strcmp (arg, "global-dynamic"))
flag_tls_default = TLS_MODEL_GLOBAL_DYNAMIC;
else if (!strcmp (arg, "local-dynamic"))
flag_tls_default = TLS_MODEL_LOCAL_DYNAMIC;
else if (!strcmp (arg, "initial-exec"))
flag_tls_default = TLS_MODEL_INITIAL_EXEC;
else if (!strcmp (arg, "local-exec"))
flag_tls_default = TLS_MODEL_LOCAL_EXEC;
else
warning ("unknown tls-model \"%s\"", arg);
break;
case OPT_ftracer:
flag_tracer_set = true;
break;
case OPT_funroll_loops:
flag_unroll_loops_set = true;
break;
/* APPLE LOCAL begin fwritable strings */
case OPT_fwritable_strings:
flag_writable_strings = value;
break;
/* APPLE LOCAL end fwritable strings */
case OPT_g:
set_debug_level (NO_DEBUG, DEFAULT_GDB_EXTENSIONS, arg);
break;
case OPT_gcoff:
set_debug_level (SDB_DEBUG, false, arg);
break;
case OPT_gdwarf_2:
set_debug_level (DWARF2_DEBUG, false, arg);
break;
case OPT_ggdb:
set_debug_level (NO_DEBUG, 2, arg);
break;
case OPT_gstabs:
case OPT_gstabs_:
set_debug_level (DBX_DEBUG, code == OPT_gstabs_, arg);
break;
case OPT_gvms:
set_debug_level (VMS_DEBUG, false, arg);
break;
case OPT_gxcoff:
case OPT_gxcoff_:
set_debug_level (XCOFF_DEBUG, code == OPT_gxcoff_, arg);
break;
case OPT_m:
set_target_switch (arg);
break;
case OPT_o:
asm_file_name = arg;
break;
case OPT_pedantic_errors:
flag_pedantic_errors = pedantic = 1;
break;
default:
/* If the flag was handled in a standard way, assume the lack of
processing here is intentional. */
/* APPLE LOCAL optimization pragmas 3124235/3420242 */
if (cl_options[scode].flag_var || cl_options[scode].access_flag)
break;
abort ();
}
return 1;
}