[thirdparty/gcc.git] / gcc / optc-gen.awk

#  Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010, 2011, 2012
#  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/>.

# This Awk script reads in the option records generated from 
# opt-gather.awk, combines the flags of duplicate options and generates a
# C file.
#

# This program uses functions from opt-functions.awk and code from
# opt-read.awk.
#
# Usage: awk -f opt-functions.awk -f opt-read.awk -f optc-gen.awk \
#            [-v header_name=header.h] < inputfile > options.c

# Dump that array of options into a C file.
END {

# Record first EnabledBy and LangEnabledBy uses.
n_enabledby = 0;
for (i = 0; i < n_langs; i++) {
    n_enabledby_lang[i] = 0;
}
for (i = 0; i < n_opts; i++) {
    enabledby_arg = opt_args("EnabledBy", flags[i]);
    if (enabledby_arg != "") {
        enabledby_name = enabledby_arg;
        enabledby_index = opt_numbers[enabledby_name];
        if (enabledby_index == "") {
            print "#error Enabledby: " enabledby_name 
        } else {
            if (enables[enabledby_name] == "") {
                enabledby[n_enabledby] = enabledby_name;
                n_enabledby++;
            }
            enables[enabledby_name] = enables[enabledby_name] opts[i] ",";
        }
    }

    enabledby_arg = opt_args("LangEnabledBy", flags[i]);
    if (enabledby_arg != "") {
        n_enabledby_arg_langs = split(nth_arg(0, enabledby_arg), enabledby_arg_langs, " ");
        enabledby_name = nth_arg(1, enabledby_arg);
        enabledby_index = opt_numbers[enabledby_name];
        if (enabledby_index == "") {
            print "#error Enabledby: " 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_name] == "") {
                    enabledby[lang_name,n_enabledby_lang[lang_index]] = enabledby_name;
                    n_enabledby_lang[lang_index]++;
                }
                enables[lang_name,enabledby_name] = enables[lang_name,enabledby_name] opts[i] ",";
            }
        }
    }
}


print "/* This file is auto-generated by optc-gen.awk.  */"
print ""
n_headers = split(header_name, headers, " ")
for (i = 1; i <= n_headers; i++)
	print "#include " quote headers[i] quote
print "#include " quote "opts.h" quote
print "#include " quote "intl.h" quote
print "#include " quote "insn-attr-common.h" quote
print ""

if (n_extra_c_includes > 0) {
	for (i = 0; i < n_extra_c_includes; i++) {
		print "#include " quote extra_c_includes[i] quote
	}
	print ""
}

for (i = 0; i < n_enums; i++) {
	name = enum_names[i]
	type = enum_type[name]
	print "static const struct cl_enum_arg cl_enum_" name \
	    "_data[] = "
	print "{"
	print enum_data[name] "  { NULL, 0, 0 }"
	print "};"
	print ""
	print "static void"
	print "cl_enum_" name "_set (void *var, int value)"
	print "{"
	print "  *((" type " *) var) = (" type ") value;"
	print "}"
	print ""
	print "static int"
	print "cl_enum_" name "_get (const void *var)"
	print "{"
	print "  return (int) *((const " type " *) var);"
	print "}"
	print ""
}

print "const struct cl_enum cl_enums[] ="
print "{"
for (i = 0; i < n_enums; i++) {
	name = enum_names[i]
	ehelp = enum_help[name]
	if (ehelp == "")
		ehelp = "NULL"
	else
		ehelp = quote ehelp quote
	unknown_error = enum_unknown_error[name]
	if (unknown_error == "")
		unknown_error = "NULL"
	else
		unknown_error = quote unknown_error quote
	print "  {"
	print "    " ehelp ","
	print "    " unknown_error ","
	print "    cl_enum_" name "_data,"
	print "    sizeof (" enum_type[name] "),"
	print "    cl_enum_" name "_set,"
	print "    cl_enum_" name "_get"
	print "  },"
}
print "};"
print "const unsigned int cl_enums_count = " n_enums ";"
print ""

print "const struct gcc_options global_options_init =\n{"
for (i = 0; i < n_extra_vars; i++) {
	var = extra_vars[i]
	init = extra_vars[i]
	if (var ~ "=" ) {
		sub(".*= *", "", init)
	} else {
		init = "0"
	}
	sub(" *=.*", "", var)
	name = var
	sub("^.*[ *]", "", name)
	sub("\\[.*\\]$", "", name)
	var_seen[name] = 1
	print "  " init ", /* " name " */"
}
for (i = 0; i < n_opts; i++) {
	name = var_name(flags[i]);
	if (name == "")
		continue;

	init = opt_args("Init", flags[i])
	if (init != "") {
		if (name in var_init && var_init[name] != init)
			print "#error multiple initializers for " name
		var_init[name] = init
	}
}
for (i = 0; i < n_opts; i++) {
	name = var_name(flags[i]);
	if (name == "")
		continue;

	if (name in var_seen)
		continue;

	if (name in var_init)
		init = var_init[name]
	else
		init = "0"

	print "  " init ", /* " name " */"

	var_seen[name] = 1;
}
for (i = 0; i < n_opts; i++) {
	name = static_var(opts[i], flags[i]);
	if (name != "") {
		print "  0, /* " name " (private state) */"
		print "#undef x_" name
	}
}
for (i = 0; i < n_opts; i++) {
	if (flag_set_p("SetByCombined", flags[i]))
		print "  false, /* frontend_set_" var_name(flags[i]) " */"
}
print "};"
print ""
print "struct gcc_options global_options;"
print "struct gcc_options global_options_set;"
print ""

print "const char * const lang_names[] =\n{"
for (i = 0; i < n_langs; i++) {
        macros[i] = "CL_" lang_sanitized_name(langs[i])
	s = substr("         ", length (macros[i]))
	print "  " quote langs[i] quote ","
    }

print "  0\n};\n"
print "const unsigned int cl_options_count = N_OPTS;\n"
print "#if (1U << " n_langs ") > CL_MIN_OPTION_CLASS"
print "  #error the number of languages exceeds the implementation limit"
print "#endif"
print "const unsigned int cl_lang_count = " n_langs ";\n"

print "const struct cl_option cl_options[] =\n{"

j = 0
for (i = 0; i < n_opts; i++) {
	back_chain[i] = "N_OPTS";
	indices[opts[i]] = j;
	# Combine the flags of identical switches.  Switches
	# appear many times if they are handled by many front
	# ends, for example.
	while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
		flags[i + 1] = flags[i] " " flags[i + 1];
		if (help[i + 1] == "")
			help[i + 1] = help[i]
		else if (help[i] != "" && help[i + 1] != help[i])
			print "#error Multiple different help strings for " \
				opts[i] ":\n\t" help[i] "\n\t" help[i + 1]
				
		i++;
		back_chain[i] = "N_OPTS";
		indices[opts[i]] = j;
	}
	j++;
}

for (i = 0; i < n_opts; i++) {
	# With identical flags, pick only the last one.  The
	# earlier loop ensured that it has all flags merged,
	# and a nonempty help text if one of the texts was nonempty.
	while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
		i++;
	}

	len = length (opts[i]);
	enum = opt_enum(opts[i])

	# If this switch takes joined arguments, back-chain all
	# subsequent switches to it for which it is a prefix.  If
	# a later switch S is a longer prefix of a switch T, T
	# will be back-chained to S in a later iteration of this
	# for() loop, which is what we want.
	if (flag_set_p("Joined.*", flags[i])) {
		for (j = i + 1; j < n_opts; j++) {
			if (substr (opts[j], 1, len) != opts[i])
				break;
			back_chain[j] = enum;
		}
	}

	s = substr("                                  ", length (opts[i]))
	if (i + 1 == n_opts)
		comma = ""

	if (help[i] == "")
		hlp = "0"
	else
		hlp = quote help[i] quote;

	missing_arg_error = opt_args("MissingArgError", flags[i])
	if (missing_arg_error == "")
		missing_arg_error = "0"
	else
		missing_arg_error = quote missing_arg_error quote


	warn_message = opt_args("Warn", flags[i])
	if (warn_message == "")
		warn_message = "0"
	else
		warn_message = quote warn_message quote

	alias_arg = opt_args("Alias", flags[i])
	if (alias_arg == "") {
		if (flag_set_p("Ignore", flags[i]))
			alias_data = "NULL, NULL, OPT_SPECIAL_ignore"
		else
			alias_data = "NULL, NULL, N_OPTS"
	} else {
		alias_opt = nth_arg(0, alias_arg)
		alias_posarg = nth_arg(1, alias_arg)
		alias_negarg = nth_arg(2, alias_arg)

		if (var_ref(opts[i], flags[i]) != "-1")
			print "#error Alias setting variable"

		if (alias_posarg != "" && alias_negarg == "") {
			if (!flag_set_p("RejectNegative", flags[i]) \
			    && opts[i] ~ "^[Wfm]")
				print "#error Alias with single argument " \
					"allowing negative form"
		}
		if (alias_posarg != "" \
		    && flag_set_p("NegativeAlias", flags[i])) {
			print "#error Alias with multiple arguments " \
				"used with NegativeAlias"
		}

		alias_opt = opt_enum(alias_opt)
		if (alias_posarg == "")
			alias_posarg = "NULL"
		else
			alias_posarg = quote alias_posarg quote
		if (alias_negarg == "")
			alias_negarg = "NULL"
		else
			alias_negarg = quote alias_negarg quote
		alias_data = alias_posarg ", " alias_negarg ", " alias_opt
	}

	neg = opt_args("Negative", flags[i]);
	if (neg != "")
		idx = indices[neg]
	else {
		if (flag_set_p("RejectNegative", flags[i]))
			idx = -1;
		else {
			if (opts[i] ~ "^[Wfm]")
				idx = indices[opts[i]];
			else
				idx = -1;
		}
	}
	# Split the printf after %u to work around an ia64-hp-hpux11.23
	# awk bug.
	printf("  { %c-%s%c,\n    %s,\n    %s,\n    %s,\n    %s, %s, %u,",
	       quote, opts[i], quote, hlp, missing_arg_error, warn_message,
	       alias_data, back_chain[i], len)
	printf(" %d,\n", idx)
	condition = opt_args("Condition", flags[i])
	cl_flags = switch_flags(flags[i])
	cl_bit_fields = switch_bit_fields(flags[i])
	cl_zero_bit_fields = switch_bit_fields("")
	if (condition != "")
		printf("#if %s\n" \
		       "    %s,\n" \
		       "    0, %s,\n" \
		       "#else\n" \
		       "    0,\n" \
		       "    1 /* Disabled.  */, %s,\n" \
		       "#endif\n",
		       condition, cl_flags, cl_bit_fields, cl_zero_bit_fields)
	else
		printf("    %s,\n" \
		       "    0, %s,\n",
		       cl_flags, cl_bit_fields)
	printf("    %s, %s }%s\n", var_ref(opts[i], flags[i]),
	       var_set(flags[i]), comma)
}

print "};"

print "\n\n"
print "bool                                                                  "
print "common_handle_option_auto (struct gcc_options *opts,                  "
print "                           struct gcc_options *opts_set,              "
print "                           const struct cl_decoded_option *decoded,   "
print "                           unsigned int lang_mask, int kind,          "
print "                           location_t loc,                            "
print "                           const struct cl_option_handlers *handlers, "
print "                           diagnostic_context *dc)                    "
print "{                                                                     "
print "  size_t scode = decoded->opt_index;                                  "
print "  int value = decoded->value;                                         "
print "  enum opt_code code = (enum opt_code) scode;                         "
print "                                                                      "
print "  gcc_assert (decoded->canonical_option_num_elements <= 2);           "
print "                                                                      "
print "  switch (code)                                                       "
print "    {                                                                 "
for (i = 0; i < n_enabledby; i++) {
    enabledby_name = enabledby[i];
    print "    case " opt_enum(enabledby_name) ":"
    n_enables = split(enables[enabledby_name], thisenable, ",");
    for (j = 1; j < n_enables; j++) {
        opt_var_name = var_name(flags[opt_numbers[thisenable[j]]]);
        print "      if (!opts_set->x_" opt_var_name ")"
        print "        handle_generated_option (opts, opts_set,"
        print "                                 " opt_enum(thisenable[j]) ", NULL, value,"
        print "                                 lang_mask, kind, loc, handlers, dc);"
    }
    print "      break;\n"
}
print "    default:    "
print "      break;    "
print "    }           "
print "  return true;  "
print "}               "

# Handle LangEnabledBy
for (i = 0; i < n_langs; i++) {
    lang_name = lang_sanitized_name(langs[i]);
    mark_unused = " ATTRIBUTE_UNUSED";

    print "\n\n"
    print "bool                                                                  "
    print lang_name "_handle_option_auto (struct gcc_options *opts" mark_unused ",              "
    print "                           struct gcc_options *opts_set" mark_unused ",              "
    print "                           size_t scode" mark_unused ", const char *arg" mark_unused ", int value" mark_unused ",  "
    print "                           unsigned int lang_mask" mark_unused ", int kind" mark_unused ",          "
    print "                           location_t loc" mark_unused ",                            "
    print "                           const struct cl_option_handlers *handlers" mark_unused ", "
    print "                           diagnostic_context *dc" mark_unused ")                    "
    print "{                                                                     "
    print "  enum opt_code code = (enum opt_code) scode;                         "
    print "                                                                      "
    print "  switch (code)                                                       "
    print "    {                                                                 "
    
    for (k = 0; k < n_enabledby_lang[i]; k++) {
        enabledby_name = enabledby[lang_name,k];
        print "    case " opt_enum(enabledby_name) ":"
        n_enables = split(enables[lang_name,enabledby_name], thisenable, ",");
        for (j = 1; j < n_enables; j++) {
            opt_var_name = var_name(flags[opt_numbers[thisenable[j]]]);
            print "      if (!opts_set->x_" opt_var_name ")"
            print "        handle_generated_option (opts, opts_set,"
            print "                                 " opt_enum(thisenable[j]) ", arg, value,"
            print "                                 lang_mask, kind, loc, handlers, dc);"
        }
        print "      break;\n"
    }
    print "    default:    "
    print "      break;    "
    print "    }           "
    print "  return true;  "
    print "}               "
}

}
Commit	Line	Data
fbb6fbd8	1	# Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010, 2011, 2012
7cf0dbf3	2	# Free Software Foundation, Inc.
e8b212b8	3	# Contributed by Kelley Cook, June 2004.
	4	# Original code from Neil Booth, May 2003.
	5	#
	6	# This program is free software; you can redistribute it and/or modify it
	7	# under the terms of the GNU General Public License as published by the
8c4c00c1	8	# Free Software Foundation; either version 3, or (at your option) any
e8b212b8	9	# later version.
	10	#
	11	# This program is distributed in the hope that it will be useful,
	12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	# GNU General Public License for more details.
	15	#
	16	# You should have received a copy of the GNU General Public License
8c4c00c1	17	# along with this program; see the file COPYING3. If not see
8c4c00c1	18	# <http://www.gnu.org/licenses/>.
e8b212b8	19
e8b212b8	20	# This Awk script reads in the option records generated from
63433b97	21	# opt-gather.awk, combines the flags of duplicate options and generates a
e8b212b8	22	# C file.
e8b212b8	23	#
1e127302	24
	25	# This program uses functions from opt-functions.awk and code from
	26	# opt-read.awk.
e8b212b8	27	#
1e127302	28	# Usage: awk -f opt-functions.awk -f opt-read.awk -f optc-gen.awk \
e8b212b8	29	# [-v header_name=header.h] < inputfile > options.c
e8b212b8	30
e8b212b8	31	# Dump that array of options into a C file.
e8b212b8	32	END {
d3b7ee7c	33
	34	# Record first EnabledBy and LangEnabledBy uses.
	35	n_enabledby = 0;
	36	for (i = 0; i < n_langs; i++) {
	37	n_enabledby_lang[i] = 0;
	38	}
	39	for (i = 0; i < n_opts; i++) {
	40	enabledby_arg = opt_args("EnabledBy", flags[i]);
	41	if (enabledby_arg != "") {
	42	enabledby_name = enabledby_arg;
	43	enabledby_index = opt_numbers[enabledby_name];
	44	if (enabledby_index == "") {
	45	print "#error Enabledby: " enabledby_name
	46	} else {
	47	if (enables[enabledby_name] == "") {
	48	enabledby[n_enabledby] = enabledby_name;
	49	n_enabledby++;
	50	}
	51	enables[enabledby_name] = enables[enabledby_name] opts[i] ",";
	52	}
	53	}
	54
	55	enabledby_arg = opt_args("LangEnabledBy", flags[i]);
	56	if (enabledby_arg != "") {
	57	n_enabledby_arg_langs = split(nth_arg(0, enabledby_arg), enabledby_arg_langs, " ");
	58	enabledby_name = nth_arg(1, enabledby_arg);
	59	enabledby_index = opt_numbers[enabledby_name];
	60	if (enabledby_index == "") {
	61	print "#error Enabledby: " enabledby_name
	62	} else {
	63	for (j = 1; j <= n_enabledby_arg_langs; j++) {
	64	lang_name = lang_sanitized_name(enabledby_arg_langs[j]);
	65	lang_index = lang_numbers[enabledby_arg_langs[j]];
	66	if (enables[lang_name,enabledby_name] == "") {
	67	enabledby[lang_name,n_enabledby_lang[lang_index]] = enabledby_name;
	68	n_enabledby_lang[lang_index]++;
	69	}
	70	enables[lang_name,enabledby_name] = enables[lang_name,enabledby_name] opts[i] ",";
	71	}
	72	}
	73	}
	74	}
	75
	76
30b0f428	77	print "/* This file is auto-generated by optc-gen.awk. */"
e8b212b8	78	print ""
5c5ccba2	79	n_headers = split(header_name, headers, " ")
	80	for (i = 1; i <= n_headers; i++)
	81	print "#include " quote headers[i] quote
e8b212b8	82	print "#include " quote "opts.h" quote
6ce616df	83	print "#include " quote "intl.h" quote
19c83f00	84	print "#include " quote "insn-attr-common.h" quote
e8b212b8	85	print ""
e8b212b8	86
755fa783	87	if (n_extra_c_includes > 0) {
	88	for (i = 0; i < n_extra_c_includes; i++) {
	89	print "#include " quote extra_c_includes[i] quote
	90	}
	91	print ""
	92	}
	93
d62a5950	94	for (i = 0; i < n_enums; i++) {
	95	name = enum_names[i]
	96	type = enum_type[name]
	97	print "static const struct cl_enum_arg cl_enum_" name \
	98	"_data[] = "
	99	print "{"
	100	print enum_data[name] " { NULL, 0, 0 }"
	101	print "};"
	102	print ""
	103	print "static void"
	104	print "cl_enum_" name "_set (void *var, int value)"
	105	print "{"
	106	print " ((" type " ) var) = (" type ") value;"
	107	print "}"
	108	print ""
	109	print "static int"
	110	print "cl_enum_" name "_get (const void *var)"
	111	print "{"
	112	print " return (int) ((const " type " ) var);"
	113	print "}"
	114	print ""
	115	}
	116
	117	print "const struct cl_enum cl_enums[] ="
	118	print "{"
	119	for (i = 0; i < n_enums; i++) {
	120	name = enum_names[i]
	121	ehelp = enum_help[name]
	122	if (ehelp == "")
	123	ehelp = "NULL"
	124	else
	125	ehelp = quote ehelp quote
	126	unknown_error = enum_unknown_error[name]
	127	if (unknown_error == "")
	128	unknown_error = "NULL"
	129	else
	130	unknown_error = quote unknown_error quote
	131	print " {"
	132	print " " ehelp ","
	133	print " " unknown_error ","
	134	print " cl_enum_" name "_data,"
	135	print " sizeof (" enum_type[name] "),"
	136	print " cl_enum_" name "_set,"
	137	print " cl_enum_" name "_get"
	138	print " },"
	139	}
	140	print "};"
	141	print "const unsigned int cl_enums_count = " n_enums ";"
	142	print ""
	143
f3f006ad	144	print "const struct gcc_options global_options_init =\n{"
0f8defe5	145	for (i = 0; i < n_extra_vars; i++) {
5ae82d58	146	var = extra_vars[i]
	147	init = extra_vars[i]
	148	if (var ~ "=" ) {
	149	sub(".= ", "", init)
5ae82d58	150	} else {
	151	init = "0"
	152	}
c3be4b75	153	sub(" =.", "", var)
	154	name = var
	155	sub("^.[ ]", "", name)
	156	sub("\\[.*\\]$", "", name)
	157	var_seen[name] = 1
	158	print " " init ", /* " name " */"
0f8defe5	159	}
e8b212b8	160	for (i = 0; i < n_opts; i++) {
	161	name = var_name(flags[i]);
	162	if (name == "")
	163	continue;
	164
5ae82d58	165	init = opt_args("Init", flags[i])
	166	if (init != "") {
	167	if (name in var_init && var_init[name] != init)
	168	print "#error multiple initializers for " name
	169	var_init[name] = init
a1baa5f1	170	}
5ae82d58	171	}
	172	for (i = 0; i < n_opts; i++) {
	173	name = var_name(flags[i]);
	174	if (name == "")
	175	continue;
	176
	177	if (name in var_seen)
	178	continue;
	179
	180	if (name in var_init)
	181	init = var_init[name]
	182	else
	183	init = "0"
a150399d	184
5ae82d58	185	print " " init ", /* " name " */"
c5e839cb	186
c5e839cb	187	var_seen[name] = 1;
a150399d	188	}
d6907cfa	189	for (i = 0; i < n_opts; i++) {
d6907cfa	190	name = static_var(opts[i], flags[i]);
2c5d2e39	191	if (name != "") {
	192	print " 0, /* " name " (private state) */"
	193	print "#undef x_" name
	194	}
d6907cfa	195	}
ecee1b29	196	for (i = 0; i < n_opts; i++) {
	197	if (flag_set_p("SetByCombined", flags[i]))
	198	print " false, /* frontend_set_" var_name(flags[i]) " */"
	199	}
2c5d2e39	200	print "};"
d6907cfa	201	print ""
f3f006ad	202	print "struct gcc_options global_options;"
f83b64ca	203	print "struct gcc_options global_options_set;"
f83b64ca	204	print ""
e8b212b8	205
	206	print "const char * const lang_names[] =\n{"
	207	for (i = 0; i < n_langs; i++) {
d3b7ee7c	208	macros[i] = "CL_" lang_sanitized_name(langs[i])
e8b212b8	209	s = substr(" ", length (macros[i]))
	210	print " " quote langs[i] quote ","
	211	}
	212
	213	print " 0\n};\n"
	214	print "const unsigned int cl_options_count = N_OPTS;\n"
634b1f85	215	print "#if (1U << " n_langs ") > CL_MIN_OPTION_CLASS"
	216	print " #error the number of languages exceeds the implementation limit"
	217	print "#endif"
87c75316	218	print "const unsigned int cl_lang_count = " n_langs ";\n"
e8b212b8	219
	220	print "const struct cl_option cl_options[] =\n{"
	221
a1baa5f1	222	j = 0
a1baa5f1	223	for (i = 0; i < n_opts; i++) {
e8b212b8	224	back_chain[i] = "N_OPTS";
a1baa5f1	225	indices[opts[i]] = j;
	226	# Combine the flags of identical switches. Switches
	227	# appear many times if they are handled by many front
	228	# ends, for example.
	229	while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
	230	flags[i + 1] = flags[i] " " flags[i + 1];
e6a03973	231	if (help[i + 1] == "")
e6a03973	232	help[i + 1] = help[i]
0863a8f4	233	else if (help[i] != "" && help[i + 1] != help[i])
4584d89f	234	print "#error Multiple different help strings for " \
	235	opts[i] ":\n\t" help[i] "\n\t" help[i + 1]
	236
a1baa5f1	237	i++;
	238	back_chain[i] = "N_OPTS";
	239	indices[opts[i]] = j;
	240	}
	241	j++;
	242	}
e8b212b8	243
d39ef3aa	244	for (i = 0; i < n_opts; i++) {
e6a03973	245	# With identical flags, pick only the last one. The
	246	# earlier loop ensured that it has all flags merged,
	247	# and a nonempty help text if one of the texts was nonempty.
d39ef3aa	248	while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
d39ef3aa	249	i++;
d39ef3aa	250	}
e8b212b8	251
d39ef3aa	252	len = length (opts[i]);
d4c7816a	253	enum = opt_enum(opts[i])
d39ef3aa	254
	255	# If this switch takes joined arguments, back-chain all
	256	# subsequent switches to it for which it is a prefix. If
	257	# a later switch S is a longer prefix of a switch T, T
	258	# will be back-chained to S in a later iteration of this
	259	# for() loop, which is what we want.
	260	if (flag_set_p("Joined.*", flags[i])) {
	261	for (j = i + 1; j < n_opts; j++) {
	262	if (substr (opts[j], 1, len) != opts[i])
	263	break;
	264	back_chain[j] = enum;
e8b212b8	265	}
d39ef3aa	266	}
e8b212b8	267
d39ef3aa	268	s = substr(" ", length (opts[i]))
	269	if (i + 1 == n_opts)
	270	comma = ""
e8b212b8	271
d39ef3aa	272	if (help[i] == "")
	273	hlp = "0"
	274	else
	275	hlp = quote help[i] quote;
e8b212b8	276
fecf9011	277	missing_arg_error = opt_args("MissingArgError", flags[i])
	278	if (missing_arg_error == "")
	279	missing_arg_error = "0"
	280	else
	281	missing_arg_error = quote missing_arg_error quote
	282
3b0273a1	283
	284	warn_message = opt_args("Warn", flags[i])
	285	if (warn_message == "")
	286	warn_message = "0"
	287	else
	288	warn_message = quote warn_message quote
	289
67089c6b	290	alias_arg = opt_args("Alias", flags[i])
67089c6b	291	if (alias_arg == "") {
3b0273a1	292	if (flag_set_p("Ignore", flags[i]))
	293	alias_data = "NULL, NULL, OPT_SPECIAL_ignore"
	294	else
	295	alias_data = "NULL, NULL, N_OPTS"
67089c6b	296	} else {
	297	alias_opt = nth_arg(0, alias_arg)
	298	alias_posarg = nth_arg(1, alias_arg)
	299	alias_negarg = nth_arg(2, alias_arg)
	300
2c5d2e39	301	if (var_ref(opts[i], flags[i]) != "-1")
67089c6b	302	print "#error Alias setting variable"
	303
	304	if (alias_posarg != "" && alias_negarg == "") {
	305	if (!flag_set_p("RejectNegative", flags[i]) \
	306	&& opts[i] ~ "^[Wfm]")
	307	print "#error Alias with single argument " \
	308	"allowing negative form"
	309	}
4e775b8e	310	if (alias_posarg != "" \
	311	&& flag_set_p("NegativeAlias", flags[i])) {
	312	print "#error Alias with multiple arguments " \
	313	"used with NegativeAlias"
	314	}
67089c6b	315
	316	alias_opt = opt_enum(alias_opt)
	317	if (alias_posarg == "")
	318	alias_posarg = "NULL"
	319	else
	320	alias_posarg = quote alias_posarg quote
	321	if (alias_negarg == "")
	322	alias_negarg = "NULL"
	323	else
	324	alias_negarg = quote alias_negarg quote
	325	alias_data = alias_posarg ", " alias_negarg ", " alias_opt
	326	}
	327
a1baa5f1	328	neg = opt_args("Negative", flags[i]);
	329	if (neg != "")
	330	idx = indices[neg]
	331	else {
	332	if (flag_set_p("RejectNegative", flags[i]))
	333	idx = -1;
	334	else {
	335	if (opts[i] ~ "^[Wfm]")
	336	idx = indices[opts[i]];
	337	else
	338	idx = -1;
	339	}
	340	}
13c2c394	341	# Split the printf after %u to work around an ia64-hp-hpux11.23
13c2c394	342	# awk bug.
3b0273a1	343	printf(" { %c-%s%c,\n %s,\n %s,\n %s,\n %s, %s, %u,",
3b0273a1	344	quote, opts[i], quote, hlp, missing_arg_error, warn_message,
67089c6b	345	alias_data, back_chain[i], len)
13c2c394	346	printf(" %d,\n", idx)
5c5ccba2	347	condition = opt_args("Condition", flags[i])
5c5ccba2	348	cl_flags = switch_flags(flags[i])
ec840af4	349	cl_bit_fields = switch_bit_fields(flags[i])
ec840af4	350	cl_zero_bit_fields = switch_bit_fields("")
5c5ccba2	351	if (condition != "")
	352	printf("#if %s\n" \
	353	" %s,\n" \
ec840af4	354	" 0, %s,\n" \
5c5ccba2	355	"#else\n" \
ec840af4	356	" 0,\n" \
ec840af4	357	" 1 /* Disabled. */, %s,\n" \
5c5ccba2	358	"#endif\n",
ec840af4	359	condition, cl_flags, cl_bit_fields, cl_zero_bit_fields)
5c5ccba2	360	else
ec840af4	361	printf(" %s,\n" \
	362	" 0, %s,\n",
	363	cl_flags, cl_bit_fields)
d6907cfa	364	printf(" %s, %s }%s\n", var_ref(opts[i], flags[i]),
d6907cfa	365	var_set(flags[i]), comma)
e8b212b8	366	}
	367
	368	print "};"
46f8e3b0	369
fbb6fbd8	370	print "\n\n"
	371	print "bool "
	372	print "common_handle_option_auto (struct gcc_options *opts, "
	373	print " struct gcc_options *opts_set, "
	374	print " const struct cl_decoded_option *decoded, "
	375	print " unsigned int lang_mask, int kind, "
	376	print " location_t loc, "
	377	print " const struct cl_option_handlers *handlers, "
	378	print " diagnostic_context *dc) "
	379	print "{ "
	380	print " size_t scode = decoded->opt_index; "
	381	print " int value = decoded->value; "
	382	print " enum opt_code code = (enum opt_code) scode; "
	383	print " "
	384	print " gcc_assert (decoded->canonical_option_num_elements <= 2); "
	385	print " "
	386	print " switch (code) "
	387	print " { "
fbb6fbd8	388	for (i = 0; i < n_enabledby; i++) {
	389	enabledby_name = enabledby[i];
	390	print " case " opt_enum(enabledby_name) ":"
	391	n_enables = split(enables[enabledby_name], thisenable, ",");
	392	for (j = 1; j < n_enables; j++) {
	393	opt_var_name = var_name(flags[opt_numbers[thisenable[j]]]);
	394	print " if (!opts_set->x_" opt_var_name ")"
	395	print " handle_generated_option (opts, opts_set,"
	396	print " " opt_enum(thisenable[j]) ", NULL, value,"
	397	print " lang_mask, kind, loc, handlers, dc);"
	398	}
	399	print " break;\n"
fbb6fbd8	400	}
	401	print " default: "
	402	print " break; "
	403	print " } "
	404	print " return true; "
	405	print "} "
	406
d3b7ee7c	407	# Handle LangEnabledBy
	408	for (i = 0; i < n_langs; i++) {
	409	lang_name = lang_sanitized_name(langs[i]);
	410	mark_unused = " ATTRIBUTE_UNUSED";
	411
	412	print "\n\n"
	413	print "bool "
	414	print lang_name "_handle_option_auto (struct gcc_options *opts" mark_unused ", "
	415	print " struct gcc_options *opts_set" mark_unused ", "
	416	print " size_t scode" mark_unused ", const char *arg" mark_unused ", int value" mark_unused ", "
	417	print " unsigned int lang_mask" mark_unused ", int kind" mark_unused ", "
	418	print " location_t loc" mark_unused ", "
	419	print " const struct cl_option_handlers *handlers" mark_unused ", "
	420	print " diagnostic_context *dc" mark_unused ") "
	421	print "{ "
	422	print " enum opt_code code = (enum opt_code) scode; "
	423	print " "
	424	print " switch (code) "
	425	print " { "
	426
	427	for (k = 0; k < n_enabledby_lang[i]; k++) {
	428	enabledby_name = enabledby[lang_name,k];
	429	print " case " opt_enum(enabledby_name) ":"
	430	n_enables = split(enables[lang_name,enabledby_name], thisenable, ",");
	431	for (j = 1; j < n_enables; j++) {
	432	opt_var_name = var_name(flags[opt_numbers[thisenable[j]]]);
	433	print " if (!opts_set->x_" opt_var_name ")"
	434	print " handle_generated_option (opts, opts_set,"
	435	print " " opt_enum(thisenable[j]) ", arg, value,"
	436	print " lang_mask, kind, loc, handlers, dc);"
	437	}
	438	print " break;\n"
	439	}
	440	print " default: "
	441	print " break; "
	442	print " } "
	443	print " return true; "
	444	print "} "
	445	}
	446
e8b212b8	447	}