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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
18# <http://www.gnu.org/licenses/>.
e8b212b8 19
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.
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
30
e8b212b8 31# Dump that array of options into a C file.
32END {
30b0f428 33print "/* This file is auto-generated by optc-gen.awk. */"
e8b212b8 34print ""
5c5ccba2 35n_headers = split(header_name, headers, " ")
36for (i = 1; i <= n_headers; i++)
37 print "#include " quote headers[i] quote
e8b212b8 38print "#include " quote "opts.h" quote
6ce616df 39print "#include " quote "intl.h" quote
19c83f00 40print "#include " quote "insn-attr-common.h" quote
e8b212b8 41print ""
42
755fa783 43if (n_extra_c_includes > 0) {
44 for (i = 0; i < n_extra_c_includes; i++) {
45 print "#include " quote extra_c_includes[i] quote
46 }
47 print ""
48}
49
d62a5950 50for (i = 0; i < n_enums; i++) {
51 name = enum_names[i]
52 type = enum_type[name]
53 print "static const struct cl_enum_arg cl_enum_" name \
54 "_data[] = "
55 print "{"
56 print enum_data[name] " { NULL, 0, 0 }"
57 print "};"
58 print ""
59 print "static void"
60 print "cl_enum_" name "_set (void *var, int value)"
61 print "{"
62 print " *((" type " *) var) = (" type ") value;"
63 print "}"
64 print ""
65 print "static int"
66 print "cl_enum_" name "_get (const void *var)"
67 print "{"
68 print " return (int) *((const " type " *) var);"
69 print "}"
70 print ""
71}
72
73print "const struct cl_enum cl_enums[] ="
74print "{"
75for (i = 0; i < n_enums; i++) {
76 name = enum_names[i]
77 ehelp = enum_help[name]
78 if (ehelp == "")
79 ehelp = "NULL"
80 else
81 ehelp = quote ehelp quote
82 unknown_error = enum_unknown_error[name]
83 if (unknown_error == "")
84 unknown_error = "NULL"
85 else
86 unknown_error = quote unknown_error quote
87 print " {"
88 print " " ehelp ","
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"
94 print " },"
95}
96print "};"
97print "const unsigned int cl_enums_count = " n_enums ";"
98print ""
99
f3f006ad 100print "const struct gcc_options global_options_init =\n{"
0f8defe5 101for (i = 0; i < n_extra_vars; i++) {
5ae82d58 102 var = extra_vars[i]
103 init = extra_vars[i]
104 if (var ~ "=" ) {
105 sub(".*= *", "", init)
5ae82d58 106 } else {
107 init = "0"
108 }
c3be4b75 109 sub(" *=.*", "", var)
110 name = var
111 sub("^.*[ *]", "", name)
112 sub("\\[.*\\]$", "", name)
113 var_seen[name] = 1
114 print " " init ", /* " name " */"
0f8defe5 115}
e8b212b8 116for (i = 0; i < n_opts; i++) {
117 name = var_name(flags[i]);
118 if (name == "")
119 continue;
120
5ae82d58 121 init = opt_args("Init", flags[i])
122 if (init != "") {
123 if (name in var_init && var_init[name] != init)
124 print "#error multiple initializers for " name
125 var_init[name] = init
a1baa5f1 126 }
5ae82d58 127}
128for (i = 0; i < n_opts; i++) {
129 name = var_name(flags[i]);
130 if (name == "")
131 continue;
132
133 if (name in var_seen)
134 continue;
135
136 if (name in var_init)
137 init = var_init[name]
138 else
139 init = "0"
a150399d 140
5ae82d58 141 print " " init ", /* " name " */"
c5e839cb 142
143 var_seen[name] = 1;
a150399d 144}
d6907cfa 145for (i = 0; i < n_opts; i++) {
146 name = static_var(opts[i], flags[i]);
2c5d2e39 147 if (name != "") {
148 print " 0, /* " name " (private state) */"
149 print "#undef x_" name
150 }
d6907cfa 151}
ecee1b29 152for (i = 0; i < n_opts; i++) {
153 if (flag_set_p("SetByCombined", flags[i]))
154 print " false, /* frontend_set_" var_name(flags[i]) " */"
155}
2c5d2e39 156print "};"
d6907cfa 157print ""
f3f006ad 158print "struct gcc_options global_options;"
f83b64ca 159print "struct gcc_options global_options_set;"
160print ""
e8b212b8 161
162print "const char * const lang_names[] =\n{"
163for (i = 0; i < n_langs; i++) {
164 macros[i] = "CL_" langs[i]
ca40ed4b 165 gsub( "[^" alnum "_]", "X", macros[i] )
e8b212b8 166 s = substr(" ", length (macros[i]))
167 print " " quote langs[i] quote ","
168 }
169
170print " 0\n};\n"
171print "const unsigned int cl_options_count = N_OPTS;\n"
634b1f85 172print "#if (1U << " n_langs ") > CL_MIN_OPTION_CLASS"
173print " #error the number of languages exceeds the implementation limit"
174print "#endif"
87c75316 175print "const unsigned int cl_lang_count = " n_langs ";\n"
e8b212b8 176
177print "const struct cl_option cl_options[] =\n{"
178
a1baa5f1 179j = 0
180for (i = 0; i < n_opts; i++) {
e8b212b8 181 back_chain[i] = "N_OPTS";
a1baa5f1 182 indices[opts[i]] = j;
183 # Combine the flags of identical switches. Switches
184 # appear many times if they are handled by many front
185 # ends, for example.
186 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
187 flags[i + 1] = flags[i] " " flags[i + 1];
e6a03973 188 if (help[i + 1] == "")
189 help[i + 1] = help[i]
0863a8f4 190 else if (help[i] != "" && help[i + 1] != help[i])
4584d89f 191 print "#error Multiple different help strings for " \
192 opts[i] ":\n\t" help[i] "\n\t" help[i + 1]
193
a1baa5f1 194 i++;
195 back_chain[i] = "N_OPTS";
196 indices[opts[i]] = j;
197 }
198 j++;
199}
e8b212b8 200
d39ef3aa 201for (i = 0; i < n_opts; i++) {
e6a03973 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.
d39ef3aa 205 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
d39ef3aa 206 i++;
207 }
e8b212b8 208
d39ef3aa 209 len = length (opts[i]);
d4c7816a 210 enum = opt_enum(opts[i])
d39ef3aa 211
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])
220 break;
221 back_chain[j] = enum;
e8b212b8 222 }
d39ef3aa 223 }
e8b212b8 224
d39ef3aa 225 s = substr(" ", length (opts[i]))
226 if (i + 1 == n_opts)
227 comma = ""
e8b212b8 228
d39ef3aa 229 if (help[i] == "")
230 hlp = "0"
231 else
232 hlp = quote help[i] quote;
e8b212b8 233
fecf9011 234 missing_arg_error = opt_args("MissingArgError", flags[i])
235 if (missing_arg_error == "")
236 missing_arg_error = "0"
237 else
238 missing_arg_error = quote missing_arg_error quote
239
3b0273a1 240
241 warn_message = opt_args("Warn", flags[i])
242 if (warn_message == "")
243 warn_message = "0"
244 else
245 warn_message = quote warn_message quote
246
67089c6b 247 alias_arg = opt_args("Alias", flags[i])
248 if (alias_arg == "") {
3b0273a1 249 if (flag_set_p("Ignore", flags[i]))
250 alias_data = "NULL, NULL, OPT_SPECIAL_ignore"
251 else
252 alias_data = "NULL, NULL, N_OPTS"
67089c6b 253 } else {
254 alias_opt = nth_arg(0, alias_arg)
255 alias_posarg = nth_arg(1, alias_arg)
256 alias_negarg = nth_arg(2, alias_arg)
257
2c5d2e39 258 if (var_ref(opts[i], flags[i]) != "-1")
67089c6b 259 print "#error Alias setting variable"
260
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"
266 }
4e775b8e 267 if (alias_posarg != "" \
268 && flag_set_p("NegativeAlias", flags[i])) {
269 print "#error Alias with multiple arguments " \
270 "used with NegativeAlias"
271 }
67089c6b 272
273 alias_opt = opt_enum(alias_opt)
274 if (alias_posarg == "")
275 alias_posarg = "NULL"
276 else
277 alias_posarg = quote alias_posarg quote
278 if (alias_negarg == "")
279 alias_negarg = "NULL"
280 else
281 alias_negarg = quote alias_negarg quote
282 alias_data = alias_posarg ", " alias_negarg ", " alias_opt
283 }
284
a1baa5f1 285 neg = opt_args("Negative", flags[i]);
286 if (neg != "")
287 idx = indices[neg]
288 else {
289 if (flag_set_p("RejectNegative", flags[i]))
290 idx = -1;
291 else {
292 if (opts[i] ~ "^[Wfm]")
293 idx = indices[opts[i]];
294 else
295 idx = -1;
296 }
297 }
13c2c394 298 # Split the printf after %u to work around an ia64-hp-hpux11.23
299 # awk bug.
3b0273a1 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,
67089c6b 302 alias_data, back_chain[i], len)
13c2c394 303 printf(" %d,\n", idx)
5c5ccba2 304 condition = opt_args("Condition", flags[i])
305 cl_flags = switch_flags(flags[i])
ec840af4 306 cl_bit_fields = switch_bit_fields(flags[i])
307 cl_zero_bit_fields = switch_bit_fields("")
5c5ccba2 308 if (condition != "")
309 printf("#if %s\n" \
310 " %s,\n" \
ec840af4 311 " 0, %s,\n" \
5c5ccba2 312 "#else\n" \
ec840af4 313 " 0,\n" \
314 " 1 /* Disabled. */, %s,\n" \
5c5ccba2 315 "#endif\n",
ec840af4 316 condition, cl_flags, cl_bit_fields, cl_zero_bit_fields)
5c5ccba2 317 else
ec840af4 318 printf(" %s,\n" \
319 " 0, %s,\n",
320 cl_flags, cl_bit_fields)
d6907cfa 321 printf(" %s, %s }%s\n", var_ref(opts[i], flags[i]),
322 var_set(flags[i]), comma)
e8b212b8 323}
324
325print "};"
46f8e3b0 326
fbb6fbd8 327print "\n\n"
328print "bool "
329print "common_handle_option_auto (struct gcc_options *opts, "
330print " struct gcc_options *opts_set, "
331print " const struct cl_decoded_option *decoded, "
332print " unsigned int lang_mask, int kind, "
333print " location_t loc, "
334print " const struct cl_option_handlers *handlers, "
335print " diagnostic_context *dc) "
336print "{ "
337print " size_t scode = decoded->opt_index; "
338print " int value = decoded->value; "
339print " enum opt_code code = (enum opt_code) scode; "
340print " "
341print " gcc_assert (decoded->canonical_option_num_elements <= 2); "
342print " "
343print " switch (code) "
344print " { "
345n_enabledby = 0;
346for (i = 0; i < n_opts; i++) {
347 # With identical flags, pick only the last one. The
348 # earlier loop ensured that it has all flags merged,
349 # and a nonempty help text if one of the texts was nonempty.
350 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
351 i++;
352 }
353 enabledby_arg = opt_args("EnabledBy", flags[i]);
354 if (enabledby_arg != "") {
355 enabledby_name = enabledby_arg;
356 enabledby_index = opt_numbers[enabledby_name];
357 if (enabledby_index == "") {
358 print "#error Enabledby: " enabledby_name
359 } else {
360 enabledby_var_name = var_name(flags[enabledby_index]);
361 if (enables[enabledby_name] == "") {
362 enabledby[n_enabledby] = enabledby_name;
363 n_enabledby++;
364 }
365 enables[enabledby_name] = enables[enabledby_name] opts[i] ",";
366 }
367 }
368}
369for (i = 0; i < n_enabledby; i++) {
370 enabledby_name = enabledby[i];
371 print " case " opt_enum(enabledby_name) ":"
372 n_enables = split(enables[enabledby_name], thisenable, ",");
373 for (j = 1; j < n_enables; j++) {
374 opt_var_name = var_name(flags[opt_numbers[thisenable[j]]]);
375 print " if (!opts_set->x_" opt_var_name ")"
376 print " handle_generated_option (opts, opts_set,"
377 print " " opt_enum(thisenable[j]) ", NULL, value,"
378 print " lang_mask, kind, loc, handlers, dc);"
379 }
380 print " break;\n"
381
382}
383print " default: "
384print " break; "
385print " } "
386print " return true; "
387print "} "
388
e8b212b8 389}