1 # Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010, 2011
2 # Free Software Foundation, Inc.
3 # Contributed by Kelley Cook, June 2004.
4 # Original code from Neil Booth, May 2003.
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
8 # Free Software Foundation; either version 3, or (at your option) any
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.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; see the file COPYING3. If not see
18 # <http://www.gnu.org/licenses/>.
20 # This Awk script reads in the option records generated from
21 # opt-gather.awk, combines the flags of duplicate options and generates a
25 # This program uses functions from opt-functions.awk and code from
28 # Usage: awk -f opt-functions.awk -f opt-read.awk -f optc-gen.awk \
29 # [-v header_name=header.h] < inputfile > options.c
31 # Dump that array of options into a C file.
33 print "/* This file is auto-generated by optc-gen.awk. */"
35 n_headers = split(header_name, headers, " ")
36 for (i = 1; i <= n_headers; i++)
37 print "#include " quote headers[i] quote
38 print "#include " quote "opts.h" quote
39 print "#include " quote "intl.h" quote
40 print "#include " quote "insn-attr-common.h" quote
43 if (n_extra_c_includes > 0) {
44 for (i = 0; i < n_extra_c_includes; i++) {
45 print "#include " quote extra_c_includes[i] quote
50 for (i = 0; i < n_enums; i++) {
52 type = enum_type[name]
53 print "static const struct cl_enum_arg cl_enum_" name \
56 print enum_data[name] " { NULL, 0, 0 }"
60 print "cl_enum_" name "_set (void *var, int value)"
62 print " *((" type " *) var) = (" type ") value;"
66 print "cl_enum_" name "_get (const void *var)"
68 print " return (int) *((const " type " *) var);"
73 print "const struct cl_enum cl_enums[] ="
75 for (i = 0; i < n_enums; i++) {
77 ehelp = enum_help[name]
81 ehelp = quote ehelp quote
82 unknown_error = enum_unknown_error[name]
83 if (unknown_error == "")
84 unknown_error = "NULL"
86 unknown_error = quote unknown_error quote
89 print " " unknown_error ","
90 print " cl_enum_" name "_data,"
91 print " sizeof (" enum_type[name] "),"
92 print " cl_enum_" name "_set,"
93 print " cl_enum_" name "_get"
97 print "const unsigned int cl_enums_count = " n_enums ";"
100 print "const struct gcc_options global_options_init =\n{"
101 for (i = 0; i < n_extra_vars; i++) {
105 sub(".*= *", "", init)
109 sub(" *=.*", "", var)
111 sub("^.*[ *]", "", name)
112 sub("\\[.*\\]$", "", name)
114 print " " init ", /* " name " */"
116 for (i = 0; i < n_opts; i++) {
117 name = var_name(flags[i]);
121 init = opt_args("Init", flags[i])
123 if (name in var_init && var_init[name] != init)
124 print "#error multiple initializers for " name
125 var_init[name] = init
128 for (i = 0; i < n_opts; i++) {
129 name = var_name(flags[i]);
133 if (name in var_seen)
136 if (name in var_init)
137 init = var_init[name]
141 print " " init ", /* " name " */"
145 for (i = 0; i < n_opts; i++) {
146 name = static_var(opts[i], flags[i]);
148 print " 0, /* " name " (private state) */"
149 print "#undef x_" name
152 for (i = 0; i < n_opts; i++) {
153 if (flag_set_p("SetByCombined", flags[i]))
154 print " false, /* frontend_set_" var_name(flags[i]) " */"
158 print "struct gcc_options global_options;"
159 print "struct gcc_options global_options_set;"
162 print "const char * const lang_names[] =\n{"
163 for (i = 0; i < n_langs; i++) {
164 macros[i] = "CL_" langs[i]
165 gsub( "[^" alnum "_]", "X", macros[i] )
166 s = substr(" ", length (macros[i]))
167 print " " quote langs[i] quote ","
171 print "const unsigned int cl_options_count = N_OPTS;\n"
172 print "#if (1U << " n_langs ") > CL_MIN_OPTION_CLASS"
173 print " #error the number of languages exceeds the implementation limit"
175 print "const unsigned int cl_lang_count = " n_langs ";\n"
177 print "const struct cl_option cl_options[] =\n{"
180 for (i = 0; i < n_opts; i++) {
181 back_chain[i] = "N_OPTS";
182 indices[opts[i]] = j;
183 # Combine the flags of identical switches. Switches
184 # appear many times if they are handled by many front
186 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
187 flags[i + 1] = flags[i] " " flags[i + 1];
188 if (help[i + 1] == "")
189 help[i + 1] = help[i]
190 else if (help[i] != "" && help[i + 1] != help[i])
191 print "warning: multiple different help strings for " \
192 opts[i] ":\n\t" help[i] "\n\t" help[i + 1] \
195 back_chain[i] = "N_OPTS";
196 indices[opts[i]] = j;
201 for (i = 0; i < n_opts; i++) {
202 # With identical flags, pick only the last one. The
203 # earlier loop ensured that it has all flags merged,
204 # and a nonempty help text if one of the texts was nonempty.
205 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
209 len = length (opts[i]);
210 enum = opt_enum(opts[i])
212 # If this switch takes joined arguments, back-chain all
213 # subsequent switches to it for which it is a prefix. If
214 # a later switch S is a longer prefix of a switch T, T
215 # will be back-chained to S in a later iteration of this
216 # for() loop, which is what we want.
217 if (flag_set_p("Joined.*", flags[i])) {
218 for (j = i + 1; j < n_opts; j++) {
219 if (substr (opts[j], 1, len) != opts[i])
221 back_chain[j] = enum;
225 s = substr(" ", length (opts[i]))
232 hlp = quote help[i] quote;
234 missing_arg_error = opt_args("MissingArgError", flags[i])
235 if (missing_arg_error == "")
236 missing_arg_error = "0"
238 missing_arg_error = quote missing_arg_error quote
241 warn_message = opt_args("Warn", flags[i])
242 if (warn_message == "")
245 warn_message = quote warn_message quote
247 alias_arg = opt_args("Alias", flags[i])
248 if (alias_arg == "") {
249 if (flag_set_p("Ignore", flags[i]))
250 alias_data = "NULL, NULL, OPT_SPECIAL_ignore"
252 alias_data = "NULL, NULL, N_OPTS"
254 alias_opt = nth_arg(0, alias_arg)
255 alias_posarg = nth_arg(1, alias_arg)
256 alias_negarg = nth_arg(2, alias_arg)
258 if (var_ref(opts[i], flags[i]) != "-1")
259 print "#error Alias setting variable"
261 if (alias_posarg != "" && alias_negarg == "") {
262 if (!flag_set_p("RejectNegative", flags[i]) \
263 && opts[i] ~ "^[Wfm]")
264 print "#error Alias with single argument " \
265 "allowing negative form"
267 if (alias_posarg != "" \
268 && flag_set_p("NegativeAlias", flags[i])) {
269 print "#error Alias with multiple arguments " \
270 "used with NegativeAlias"
273 alias_opt = opt_enum(alias_opt)
274 if (alias_posarg == "")
275 alias_posarg = "NULL"
277 alias_posarg = quote alias_posarg quote
278 if (alias_negarg == "")
279 alias_negarg = "NULL"
281 alias_negarg = quote alias_negarg quote
282 alias_data = alias_posarg ", " alias_negarg ", " alias_opt
285 neg = opt_args("Negative", flags[i]);
289 if (flag_set_p("RejectNegative", flags[i]))
292 if (opts[i] ~ "^[Wfm]")
293 idx = indices[opts[i]];
298 # Split the printf after %u to work around an ia64-hp-hpux11.23
300 printf(" { %c-%s%c,\n %s,\n %s,\n %s,\n %s, %s, %u,",
301 quote, opts[i], quote, hlp, missing_arg_error, warn_message,
302 alias_data, back_chain[i], len)
303 printf(" %d,\n", idx)
304 condition = opt_args("Condition", flags[i])
305 cl_flags = switch_flags(flags[i])
306 cl_bit_fields = switch_bit_fields(flags[i])
307 cl_zero_bit_fields = switch_bit_fields("")
314 " 1 /* Disabled. */, %s,\n" \
316 condition, cl_flags, cl_bit_fields, cl_zero_bit_fields)
320 cl_flags, cl_bit_fields)
321 printf(" %s, %s }%s\n", var_ref(opts[i], flags[i]),
322 var_set(flags[i]), comma)