[thirdparty/gcc.git] / gcc / opt-functions.awk

#  Copyright (C) 2003-2020 Free Software Foundation, Inc.
#  Contributed by Kelley Cook, June 2004.
#  Original code from Neil Booth, May 2003.
#
# This program 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.
# 
# This program 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 this program; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.

# Some common subroutines for use by opt[ch]-gen.awk.

# Define some helpful character classes, for portability.
BEGIN {
	lower = "abcdefghijklmnopqrstuvwxyz"
	upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	digit = "0123456789"
	alnum = lower "" upper "" digit
}

# Return nonzero if FLAGS contains a flag matching REGEX.
function flag_set_p(regex, flags)
{
    # Ignore the arguments of flags with arguments.
    gsub ("\\([^)]+\\)", "", flags);
    return (" " flags " ") ~ (" " regex " ")
}

# Return STRING if FLAGS contains a flag matching regexp REGEX,
# otherwise return the empty string.
function test_flag(regex, flags, string)
{
	if (flag_set_p(regex, flags))
		return string
	return ""
}

# Return a field initializer, with trailing comma, for a field that is
# 1 if FLAGS contains a flag matching REGEX and 0 otherwise.
function flag_init(regex, flags)
{
	if (flag_set_p(regex, flags))
		return "1 /* " regex " */, "
	else
		return "0, "
}

# If FLAGS contains a "NAME(...argument...)" flag, return the value
# of the argument.  Return the empty string otherwise.
function opt_args(name, flags)
{
	flags = " " flags
	if (flags !~ " " name "\\(")
		return ""
	sub(".* " name "\\(", "", flags)
	if (flags ~ "^[{]")
	{
		sub ("^[{]", "", flags)
		sub ("}\\).*", "", flags)
	}
	else
		sub("\\).*", "", flags)

	return flags
}

# If FLAGS contains a "NAME(...argument...)" flag, return the value
# of the argument.  Print error message otherwise.
function opt_args_non_empty(name, flags, description)
{
	args = opt_args(name, flags)
	if (args == "")
		print "#error Empty option argument '" name "' during parsing of: " flags
	return args
}

# Return the Nth comma-separated element of S.  Return the empty string
# if S does not contain N elements.
function nth_arg(n, s)
{
	while (n-- > 0) {
		if (s !~ ",")
			return ""
		sub("[^,]*, *", "", s)
	}
	sub(",.*", "", s)
	return s
}

# Return a bitmask of CL_* values for option flags FLAGS.
function switch_flags (flags)
{
	result = "0"
	for (j = 0; j < n_langs; j++) {
		regex = langs[j]
		gsub ( "\\+", "\\+", regex )
		result = result test_flag(regex, flags, " | " macros[j])
	}
	result = result \
	  test_flag("Common", flags, " | CL_COMMON") \
	  test_flag("Target", flags, " | CL_TARGET") \
	  test_flag("PchIgnore", flags, " | CL_PCH_IGNORE") \
	  test_flag("Driver", flags, " | CL_DRIVER") \
	  test_flag("Joined", flags, " | CL_JOINED") \
	  test_flag("JoinedOrMissing", flags, " | CL_JOINED") \
	  test_flag("Separate", flags, " | CL_SEPARATE") \
	  test_flag("Undocumented", flags,  " | CL_UNDOCUMENTED") \
	  test_flag("NoDWARFRecord", flags,  " | CL_NO_DWARF_RECORD") \
	  test_flag("Warning", flags,  " | CL_WARNING") \
	  test_flag("(Optimization|PerFunction)", flags,  " | CL_OPTIMIZATION") \
	  test_flag("Param", flags,  " | CL_PARAMS")
	sub( "^0 \\| ", "", result )
	return result
}

# Return bit-field initializers for option flags FLAGS.
function switch_bit_fields (flags)
{
	uinteger_flag = ""
	vn = var_name(flags);
	if (host_wide_int[vn] == "yes")
		hwi = "Host_Wide_Int"
	else if (flag_set_p("Host_Wide_Int", flags)) {
		hwi = "Host_Wide_Int"
		uinteger_flag = flag_init("UInteger", flags)
	}
	else
		hwi = ""
	result = ""
	sep_args = opt_args("Args", flags)
	if (sep_args == "")
		sep_args = 0
	else
		sep_args--
	result = result sep_args ", "

	if (uinteger_flag == "")
		uinteger_flag = flag_init("UInteger", flags)

	hwi_flag = flag_init("Host_Wide_Int", hwi)
	byte_size_flag = flag_init("ByteSize", flags)

	if (substr(byte_size_flag, 1, 1) != "0"	\
	    && substr(uinteger_flag, 1, 1) == "0" \
	    && substr(hwi_flag, 1, 1) == "0")
	  print "#error only UInteger amd Host_Wide_Int options can specify a ByteSize suffix"

	# The following flags need to be in the same order as
	# the corresponding members of struct cl_option defined
	# in gcc/opts.h.
	result = result \
	  flag_init("SeparateAlias", flags) \
	  flag_init("NegativeAlias", flags) \
	  flag_init("NoDriverArg", flags) \
	  flag_init("RejectDriver", flags) \
	  flag_init("RejectNegative", flags) \
	  flag_init("JoinedOrMissing", flags) \
	  uinteger_flag \
	  hwi_flag \
	  flag_init("ToLower", flags) \
	  flag_init("Report", flags) \
	  byte_size_flag

	sub(", $", "", result)
	return result
}

# If FLAGS includes a Var flag, return the name of the variable it specifies.
# Return the empty string otherwise.
function var_name(flags)
{
	return nth_arg(0, opt_args("Var", flags))
}

# Return the name of the variable if FLAGS has a HOST_WIDE_INT variable. 
# Return the empty string otherwise.
function host_wide_int_var_name(flags)
{
	split (flags, array, "[ \t]+")
	if (array[1] == "HOST_WIDE_INT")
		return array[2]
	else
		return ""
}

# Return true if the option described by FLAGS has a globally-visible state.
function global_state_p(flags)
{
	return (var_name(flags) != "" \
		|| opt_args("Mask", flags) != "" \
		|| opt_args("InverseMask", flags) != "")
}

# Return true if the option described by FLAGS must have some state
# associated with it.
function needs_state_p(flags)
{
	return (flag_set_p("Target", flags) \
		&& !flag_set_p("Alias.*", flags) \
		&& !flag_set_p("Ignore", flags))
}

# If FLAGS describes an option that needs state without a public
# variable name, return the name of that field, minus the initial
# "x_", otherwise return "".  NAME is the name of the option.
function static_var(name, flags)
{
	if (global_state_p(flags) || !needs_state_p(flags))
		return ""
	gsub ("[^" alnum "]", "_", name)
	return "VAR_" name
}

# Return the type of variable that should be associated with the given flags.
function var_type(flags)
{
	if (flag_set_p("Defer", flags))
		return "void *"
	else if (flag_set_p("Enum.*", flags)) {
		en = opt_args("Enum", flags);
		return enum_type[en] " "
	}
	else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags))
		return "int "
	else if (flag_set_p("Host_Wide_Int", flags))
		return "HOST_WIDE_INT "
	else if (flag_set_p("UInteger", flags))
		return "int "
	else
		return "const char *"
}

# Return the type of variable that should be associated with the given flags
# for use within a structure.  Simple variables are changed to signed char
# type instead of int to save space.
function var_type_struct(flags)
{
	if (flag_set_p("UInteger", flags)) {
		if (host_wide_int[var_name(flags)] == "yes")
			return "HOST_WIDE_INT ";
		if (flag_set_p("ByteSize", flags))
			return "HOST_WIDE_INT "
	  return "int "
	}
	else if (flag_set_p("Enum.*", flags)) {
		en = opt_args("Enum", flags);
		return enum_type[en] " "
	}
	else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags)) {
		if (flag_set_p(".*Mask.*", flags)) {
			if (host_wide_int[var_name(flags)] == "yes")
				return "HOST_WIDE_INT "
			else
				return "/* - */ int "
		}
		else
			return "signed char "
	}
	else
		return "const char *"
}

# Given that an option has flags FLAGS, return an initializer for the
# "var_enum", "var_type" and "var_value" fields of its cl_options[] entry.
function var_set(flags)
{
	if (flag_set_p("Defer", flags))
		return "0, CLVC_DEFER, 0"
	s = nth_arg(1, opt_args("Var", flags))
	if (s != "")
		return "0, CLVC_EQUAL, " s
	s = opt_args("Mask", flags);
	if (s != "") {
		vn = var_name(flags);
		if (vn)
			return "0, CLVC_BIT_SET, OPTION_MASK_" s
		else
			return "0, CLVC_BIT_SET, MASK_" s
	}
	s = nth_arg(0, opt_args("InverseMask", flags));
	if (s != "") {
		vn = var_name(flags);
		if (vn)
			return "0, CLVC_BIT_CLEAR, OPTION_MASK_" s
		else
			return "0, CLVC_BIT_CLEAR, MASK_" s
	}
	if (flag_set_p("Enum.*", flags)) {
		en = opt_args("Enum", flags);
		return enum_index[en] ", CLVC_ENUM, 0"
	}
	if (var_type(flags) == "const char *")
		return "0, CLVC_STRING, 0"
	if (flag_set_p("ByteSize", flags))
		return "0, CLVC_SIZE, 0"
	return "0, CLVC_BOOLEAN, 0"
}

# Given that an option called NAME has flags FLAGS, return an initializer
# for the "flag_var" field of its cl_options[] entry.
function var_ref(name, flags)
{
	name = var_name(flags) static_var(name, flags)
	if (name != "")
		return "offsetof (struct gcc_options, x_" name ")"
	if (opt_args("Mask", flags) != "")
		return "offsetof (struct gcc_options, x_target_flags)"
	if (opt_args("InverseMask", flags) != "")
		return "offsetof (struct gcc_options, x_target_flags)"
	return "(unsigned short) -1"
}

# Given the option called NAME return a sanitized version of its name.
function opt_sanitized_name(name)
{
	gsub ("[^" alnum "]", "_", name)
	return name
}

# Given the option called NAME return the appropriate enum for it.
function opt_enum(name)
{
	return "OPT_" opt_sanitized_name(name)
}

# Given the language called NAME return a sanitized version of its name.
function lang_sanitized_name(name)
{
    gsub( "[^" alnum "_]", "X", name )
    return name
}

# Search for a valid var_name among all OPTS equal to option NAME.
# If not found, return "".
function search_var_name(name, opt_numbers, opts, flags, n_opts)
{
    opt_var_name = var_name(flags[opt_numbers[name]]);
    if (opt_var_name != "") {
        return opt_var_name;
    }
    for (k = 0; k < n_opts; k++) {
        if (opts[k] == name && var_name(flags[k]) != "") {
            return var_name(flags[k]);
        }
    }
    return ""
}

function integer_range_info(range_option, init, option)
{
    if (range_option != "") {
	ival = init + 0;
	start = nth_arg(0, range_option) + 0;
	end = nth_arg(1, range_option) + 0;
	if (init != "" && init != "-1" && (ival < start || ival > end))
	  print "#error initial value " init " of '" option "' must be in range [" start "," end "]"
	return start ", " end
    }
    else
        return "-1, -1"
}

# Handle LangEnabledBy(ENABLED_BY_LANGS, ENABLEDBY_NAME, ENABLEDBY_POSARG,
# ENABLEDBY_NEGARG). This function does not return anything.
function lang_enabled_by(enabledby_langs, enabledby_name, enabledby_posarg, enabledby_negarg)
{
    n_enabledby_arg_langs = split(enabledby_langs, enabledby_arg_langs, " ");
    if (enabledby_posarg != "" && enabledby_negarg != "") {
        with_args = "," enabledby_posarg "," enabledby_negarg
    } else if (enabledby_posarg == "" && enabledby_negarg == "") {
        with_args = ""
    } else {
        print "#error " opts[i] " LangEnabledBy("enabledby_langs","enabledby_name", " \
            enabledby_posarg", " enabledby_negargs                  \
            ") with three arguments, it should have either 2 or 4"
    }

    n_enabledby_array = split(enabledby_name, enabledby_array, " \\|\\| ");
    for (k = 1; k <= n_enabledby_array; k++) {
        enabledby_index = opt_numbers[enabledby_array[k]];
        if (enabledby_index == "") {
             print "#error " opts[i] " LangEnabledBy("enabledby_langs","enabledby_name", " \
                 enabledby_posarg", " enabledby_negargs"), unknown option '" enabledby_name "'"
        } else {
            for (j = 1; j <= n_enabledby_arg_langs; j++) {
                 lang_name = lang_sanitized_name(enabledby_arg_langs[j]);
                 lang_index = lang_numbers[enabledby_arg_langs[j]];
                 if (enables[lang_name,enabledby_array[k]] == "") {
                     enabledby[lang_name,n_enabledby_lang[lang_index]] = enabledby_array[k];
                     n_enabledby_lang[lang_index]++;
                 }
                 enables[lang_name,enabledby_array[k]] \
                     = enables[lang_name,enabledby_array[k]] opts[i] with_args ";";
            }
        }
    }
}
Commit	Line	Data
8d9254fc	1	# Copyright (C) 2003-2020 Free Software Foundation, Inc.
776dc15d KC	2	# Contributed by Kelley Cook, June 2004.
	3	# Original code from Neil Booth, May 2003.
	4	#
	5	# This program is free software; you can redistribute it and/or modify it
	6	# under the terms of the GNU General Public License as published by the
9dcd6f09	7	# Free Software Foundation; either version 3, or (at your option) any
776dc15d KC	8	# later version.
	9	#
	10	# This program is distributed in the hope that it will be useful,
	11	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	# GNU General Public License for more details.
	14	#
	15	# You should have received a copy of the GNU General Public License
9dcd6f09 NC	16	# along with this program; see the file COPYING3. If not see
9dcd6f09 NC	17	# <http://www.gnu.org/licenses/>.
776dc15d KC	18
	19	# Some common subroutines for use by opt[ch]-gen.awk.
	20
e4590d63 RW	21	# Define some helpful character classes, for portability.
	22	BEGIN {
	23	lower = "abcdefghijklmnopqrstuvwxyz"
	24	upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	25	digit = "0123456789"
	26	alnum = lower "" upper "" digit
	27	}
	28
a56a0779 RS	29	# Return nonzero if FLAGS contains a flag matching REGEX.
	30	function flag_set_p(regex, flags)
	31	{
f2bc201f MLI	32	# Ignore the arguments of flags with arguments.
	33	gsub ("\\([^)]+\\)", "", flags);
	34	return (" " flags " ") ~ (" " regex " ")
a56a0779 RS	35	}
	36
	37	# Return STRING if FLAGS contains a flag matching regexp REGEX,
	38	# otherwise return the empty string.
	39	function test_flag(regex, flags, string)
	40	{
	41	if (flag_set_p(regex, flags))
	42	return string
	43	return ""
	44	}
	45
300d83d9 JM	46	# Return a field initializer, with trailing comma, for a field that is
	47	# 1 if FLAGS contains a flag matching REGEX and 0 otherwise.
	48	function flag_init(regex, flags)
	49	{
	50	if (flag_set_p(regex, flags))
	51	return "1 /* " regex " */, "
	52	else
	53	return "0, "
	54	}
	55
75685792 RS	56	# If FLAGS contains a "NAME(...argument...)" flag, return the value
	57	# of the argument. Return the empty string otherwise.
	58	function opt_args(name, flags)
	59	{
	60	flags = " " flags
	61	if (flags !~ " " name "\\(")
	62	return ""
	63	sub(".* " name "\\(", "", flags)
27ec2266	64	if (flags ~ "^[{]")
88c2fd3d	65	{
27ec2266 JJ	66	sub ("^[{]", "", flags)
27ec2266 JJ	67	sub ("}\\).*", "", flags)
88c2fd3d DK	68	}
	69	else
	70	sub("\\).*", "", flags)
75685792 RS	71
	72	return flags
	73	}
	74
2d8a60a6 ML	75	# If FLAGS contains a "NAME(...argument...)" flag, return the value
	76	# of the argument. Print error message otherwise.
	77	function opt_args_non_empty(name, flags, description)
	78	{
	79	args = opt_args(name, flags)
	80	if (args == "")
	81	print "#error Empty option argument '" name "' during parsing of: " flags
	82	return args
	83	}
	84
75685792 RS	85	# Return the Nth comma-separated element of S. Return the empty string
	86	# if S does not contain N elements.
	87	function nth_arg(n, s)
	88	{
	89	while (n-- > 0) {
	90	if (s !~ ",")
	91	return ""
	92	sub("[^,], ", "", s)
	93	}
	94	sub(",.*", "", s)
	95	return s
	96	}
	97
	98	# Return a bitmask of CL_* values for option flags FLAGS.
776dc15d KC	99	function switch_flags (flags)
776dc15d KC	100	{
776dc15d KC	101	result = "0"
776dc15d KC	102	for (j = 0; j < n_langs; j++) {
a56a0779	103	regex = langs[j]
776dc15d	104	gsub ( "\\+", "\\+", regex )
a56a0779	105	result = result test_flag(regex, flags, " \| " macros[j])
776dc15d	106	}
a56a0779 RS	107	result = result \
	108	test_flag("Common", flags, " \| CL_COMMON") \
	109	test_flag("Target", flags, " \| CL_TARGET") \
212bfe71	110	test_flag("PchIgnore", flags, " \| CL_PCH_IGNORE") \
603349bf	111	test_flag("Driver", flags, " \| CL_DRIVER") \
a56a0779	112	test_flag("Joined", flags, " \| CL_JOINED") \
300d83d9	113	test_flag("JoinedOrMissing", flags, " \| CL_JOINED") \
a56a0779	114	test_flag("Separate", flags, " \| CL_SEPARATE") \
a56a0779	115	test_flag("Undocumented", flags, " \| CL_UNDOCUMENTED") \
77ee7190	116	test_flag("NoDWARFRecord", flags, " \| CL_NO_DWARF_RECORD") \
c662432e	117	test_flag("Warning", flags, " \| CL_WARNING") \
76c26af9 ML	118	test_flag("(Optimization\|PerFunction)", flags, " \| CL_OPTIMIZATION") \
76c26af9 ML	119	test_flag("Param", flags, " \| CL_PARAMS")
300d83d9 JM	120	sub( "^0 \\\| ", "", result )
	121	return result
	122	}
	123
	124	# Return bit-field initializers for option flags FLAGS.
	125	function switch_bit_fields (flags)
	126	{
00abf86c	127	uinteger_flag = ""
99114bbf L	128	vn = var_name(flags);
	129	if (host_wide_int[vn] == "yes")
	130	hwi = "Host_Wide_Int"
00abf86c MS	131	else if (flag_set_p("Host_Wide_Int", flags)) {
	132	hwi = "Host_Wide_Int"
	133	uinteger_flag = flag_init("UInteger", flags)
	134	}
99114bbf L	135	else
99114bbf L	136	hwi = ""
300d83d9	137	result = ""
c243beb0	138	sep_args = opt_args("Args", flags)
300d83d9 JM	139	if (sep_args == "")
	140	sep_args = 0
	141	else
c243beb0	142	sep_args--
300d83d9 JM	143	result = result sep_args ", "
300d83d9 JM	144
00abf86c MS	145	if (uinteger_flag == "")
	146	uinteger_flag = flag_init("UInteger", flags)
	147
	148	hwi_flag = flag_init("Host_Wide_Int", hwi)
	149	byte_size_flag = flag_init("ByteSize", flags)
	150
	151	if (substr(byte_size_flag, 1, 1) != "0" \
	152	&& substr(uinteger_flag, 1, 1) == "0" \
	153	&& substr(hwi_flag, 1, 1) == "0")
	154	print "#error only UInteger amd Host_Wide_Int options can specify a ByteSize suffix"
	155
	156	# The following flags need to be in the same order as
	157	# the corresponding members of struct cl_option defined
	158	# in gcc/opts.h.
300d83d9 JM	159	result = result \
	160	flag_init("SeparateAlias", flags) \
	161	flag_init("NegativeAlias", flags) \
	162	flag_init("NoDriverArg", flags) \
	163	flag_init("RejectDriver", flags) \
	164	flag_init("RejectNegative", flags) \
	165	flag_init("JoinedOrMissing", flags) \
00abf86c MS	166	uinteger_flag \
00abf86c MS	167	hwi_flag \
413519ae	168	flag_init("ToLower", flags) \
3713f2e2	169	flag_init("Report", flags) \
00abf86c	170	byte_size_flag
300d83d9 JM	171
300d83d9 JM	172	sub(", $", "", result)
776dc15d KC	173	return result
	174	}
	175
75685792 RS	176	# If FLAGS includes a Var flag, return the name of the variable it specifies.
75685792 RS	177	# Return the empty string otherwise.
776dc15d KC	178	function var_name(flags)
776dc15d KC	179	{
75685792	180	return nth_arg(0, opt_args("Var", flags))
776dc15d	181	}
75685792	182
99114bbf L	183	# Return the name of the variable if FLAGS has a HOST_WIDE_INT variable.
	184	# Return the empty string otherwise.
	185	function host_wide_int_var_name(flags)
	186	{
	187	split (flags, array, "[ \t]+")
	188	if (array[1] == "HOST_WIDE_INT")
	189	return array[2]
	190	else
	191	return ""
	192	}
	193
ee133b69 RS	194	# Return true if the option described by FLAGS has a globally-visible state.
	195	function global_state_p(flags)
	196	{
	197	return (var_name(flags) != "" \
	198	\|\| opt_args("Mask", flags) != "" \
	199	\|\| opt_args("InverseMask", flags) != "")
	200	}
	201
	202	# Return true if the option described by FLAGS must have some state
	203	# associated with it.
	204	function needs_state_p(flags)
	205	{
2d2bd949 JM	206	return (flag_set_p("Target", flags) \
	207	&& !flag_set_p("Alias.*", flags) \
	208	&& !flag_set_p("Ignore", flags))
ee133b69 RS	209	}
ee133b69 RS	210
46625112 JM	211	# If FLAGS describes an option that needs state without a public
	212	# variable name, return the name of that field, minus the initial
	213	# "x_", otherwise return "". NAME is the name of the option.
ee133b69 RS	214	function static_var(name, flags)
	215	{
	216	if (global_state_p(flags) \|\| !needs_state_p(flags))
	217	return ""
e4590d63	218	gsub ("[^" alnum "]", "_", name)
ee133b69 RS	219	return "VAR_" name
	220	}
	221
55bea00a RS	222	# Return the type of variable that should be associated with the given flags.
	223	function var_type(flags)
	224	{
21bf1558 JM	225	if (flag_set_p("Defer", flags))
21bf1558 JM	226	return "void *"
e6d4b984 JM	227	else if (flag_set_p("Enum.*", flags)) {
	228	en = opt_args("Enum", flags);
	229	return enum_type[en] " "
	230	}
21bf1558	231	else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags))
55bea00a	232	return "int "
00abf86c MS	233	else if (flag_set_p("Host_Wide_Int", flags))
00abf86c MS	234	return "HOST_WIDE_INT "
55bea00a RS	235	else if (flag_set_p("UInteger", flags))
	236	return "int "
	237	else
	238	return "const char *"
	239	}
	240
ab442df7	241	# Return the type of variable that should be associated with the given flags
a3f410a2	242	# for use within a structure. Simple variables are changed to signed char
ab442df7 MM	243	# type instead of int to save space.
	244	function var_type_struct(flags)
	245	{
00abf86c MS	246	if (flag_set_p("UInteger", flags)) {
	247	if (host_wide_int[var_name(flags)] == "yes")
	248	return "HOST_WIDE_INT ";
	249	if (flag_set_p("ByteSize", flags))
	250	return "HOST_WIDE_INT "
	251	return "int "
	252	}
c860fe8c JM	253	else if (flag_set_p("Enum.*", flags)) {
	254	en = opt_args("Enum", flags);
	255	return enum_type[en] " "
	256	}
603349bf	257	else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags)) {
99114bbf L	258	if (flag_set_p(".Mask.", flags)) {
	259	if (host_wide_int[var_name(flags)] == "yes")
	260	return "HOST_WIDE_INT "
	261	else
00abf86c	262	return "/* - */ int "
99114bbf	263	}
ab442df7	264	else
a3f410a2	265	return "signed char "
ab442df7 MM	266	}
	267	else
	268	return "const char *"
	269	}
	270
75685792	271	# Given that an option has flags FLAGS, return an initializer for the
e6d4b984	272	# "var_enum", "var_type" and "var_value" fields of its cl_options[] entry.
776dc15d KC	273	function var_set(flags)
776dc15d KC	274	{
21bf1558	275	if (flag_set_p("Defer", flags))
e6d4b984	276	return "0, CLVC_DEFER, 0"
75685792 RS	277	s = nth_arg(1, opt_args("Var", flags))
75685792 RS	278	if (s != "")
e6d4b984	279	return "0, CLVC_EQUAL, " s
75685792	280	s = opt_args("Mask", flags);
a45505d8 DD	281	if (s != "") {
	282	vn = var_name(flags);
	283	if (vn)
e6d4b984	284	return "0, CLVC_BIT_SET, OPTION_MASK_" s
a45505d8	285	else
e6d4b984	286	return "0, CLVC_BIT_SET, MASK_" s
a45505d8	287	}
75685792	288	s = nth_arg(0, opt_args("InverseMask", flags));
c1630cc5 DE	289	if (s != "") {
	290	vn = var_name(flags);
	291	if (vn)
e6d4b984	292	return "0, CLVC_BIT_CLEAR, OPTION_MASK_" s
55bea00a	293	else
e6d4b984 JM	294	return "0, CLVC_BIT_CLEAR, MASK_" s
	295	}
	296	if (flag_set_p("Enum.*", flags)) {
	297	en = opt_args("Enum", flags);
	298	return enum_index[en] ", CLVC_ENUM, 0"
c1630cc5	299	}
55bea00a	300	if (var_type(flags) == "const char *")
e6d4b984	301	return "0, CLVC_STRING, 0"
00abf86c MS	302	if (flag_set_p("ByteSize", flags))
00abf86c MS	303	return "0, CLVC_SIZE, 0"
e6d4b984	304	return "0, CLVC_BOOLEAN, 0"
776dc15d	305	}
75685792	306
ee133b69 RS	307	# Given that an option called NAME has flags FLAGS, return an initializer
	308	# for the "flag_var" field of its cl_options[] entry.
	309	function var_ref(name, flags)
776dc15d	310	{
ee133b69	311	name = var_name(flags) static_var(name, flags)
75685792	312	if (name != "")
46625112	313	return "offsetof (struct gcc_options, x_" name ")"
75685792	314	if (opt_args("Mask", flags) != "")
46625112	315	return "offsetof (struct gcc_options, x_target_flags)"
75685792	316	if (opt_args("InverseMask", flags) != "")
46625112	317	return "offsetof (struct gcc_options, x_target_flags)"
f6b3ca5a	318	return "(unsigned short) -1"
776dc15d	319	}
9db94baa MLI	320
	321	# Given the option called NAME return a sanitized version of its name.
	322	function opt_sanitized_name(name)
	323	{
e4590d63	324	gsub ("[^" alnum "]", "_", name)
9db94baa MLI	325	return name
	326	}
	327
	328	# Given the option called NAME return the appropriate enum for it.
	329	function opt_enum(name)
	330	{
	331	return "OPT_" opt_sanitized_name(name)
	332	}
f2bc201f MLI	333
	334	# Given the language called NAME return a sanitized version of its name.
	335	function lang_sanitized_name(name)
	336	{
	337	gsub( "[^" alnum "_]", "X", name )
	338	return name
	339	}
d919140b MLI	340
	341	# Search for a valid var_name among all OPTS equal to option NAME.
	342	# If not found, return "".
	343	function search_var_name(name, opt_numbers, opts, flags, n_opts)
	344	{
	345	opt_var_name = var_name(flags[opt_numbers[name]]);
	346	if (opt_var_name != "") {
	347	return opt_var_name;
	348	}
	349	for (k = 0; k < n_opts; k++) {
	350	if (opts[k] == name && var_name(flags[k]) != "") {
	351	return var_name(flags[k]);
	352	}
	353	}
	354	return ""
	355	}
0829c7f7	356
e88a9384	357	function integer_range_info(range_option, init, option)
63010089 ML	358	{
63010089 ML	359	if (range_option != "") {
4bc8aadf JM	360	ival = init + 0;
	361	start = nth_arg(0, range_option) + 0;
	362	end = nth_arg(1, range_option) + 0;
	363	if (init != "" && init != "-1" && (ival < start \|\| ival > end))
e88a9384	364	print "#error initial value " init " of '" option "' must be in range [" start "," end "]"
63010089 ML	365	return start ", " end
	366	}
	367	else
	368	return "-1, -1"
	369	}
	370
0829c7f7 MLI	371	# Handle LangEnabledBy(ENABLED_BY_LANGS, ENABLEDBY_NAME, ENABLEDBY_POSARG,
	372	# ENABLEDBY_NEGARG). This function does not return anything.
	373	function lang_enabled_by(enabledby_langs, enabledby_name, enabledby_posarg, enabledby_negarg)
	374	{
	375	n_enabledby_arg_langs = split(enabledby_langs, enabledby_arg_langs, " ");
27e51192 TB	376	if (enabledby_posarg != "" && enabledby_negarg != "") {
	377	with_args = "," enabledby_posarg "," enabledby_negarg
	378	} else if (enabledby_posarg == "" && enabledby_negarg == "") {
	379	with_args = ""
0829c7f7	380	} else {
c2d89095	381	print "#error " opts[i] " LangEnabledBy("enabledby_langs","enabledby_name", " \
27e51192 TB	382	enabledby_posarg", " enabledby_negargs \
	383	") with three arguments, it should have either 2 or 4"
	384	}
	385
	386	n_enabledby_array = split(enabledby_name, enabledby_array, " \\\|\\\| ");
	387	for (k = 1; k <= n_enabledby_array; k++) {
	388	enabledby_index = opt_numbers[enabledby_array[k]];
	389	if (enabledby_index == "") {
c2d89095 MLI	390	print "#error " opts[i] " LangEnabledBy("enabledby_langs","enabledby_name", " \
c2d89095 MLI	391	enabledby_posarg", " enabledby_negargs"), unknown option '" enabledby_name "'"
0829c7f7	392	} else {
27e51192 TB	393	for (j = 1; j <= n_enabledby_arg_langs; j++) {
	394	lang_name = lang_sanitized_name(enabledby_arg_langs[j]);
	395	lang_index = lang_numbers[enabledby_arg_langs[j]];
	396	if (enables[lang_name,enabledby_array[k]] == "") {
	397	enabledby[lang_name,n_enabledby_lang[lang_index]] = enabledby_array[k];
	398	n_enabledby_lang[lang_index]++;
	399	}
	400	enables[lang_name,enabledby_array[k]] \
	401	= enables[lang_name,enabledby_array[k]] opts[i] with_args ";";
0829c7f7	402	}
0829c7f7 MLI	403	}
	404	}
	405	}