1 # Copyright (C) 2003-2018 Free Software Foundation, Inc.
2 # Contributed by Kelley Cook, June 2004.
3 # Original code from Neil Booth, May 2003.
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
7 # Free Software Foundation; either version 3, or (at your option) any
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.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 # This Awk script reads in the option records generated from
20 # opt-gather.awk, combines the flags of duplicate options and generates a
23 # This program uses functions from opt-functions.awk and code from
25 # Usage: awk -f opt-functions.awk -f opt-read.awk -f opth-gen.awk \
26 # < inputfile > options.h
28 # Dump out an enumeration into a .h file.
29 # Combine the flags of duplicate options.
31 print "/* This file is auto-generated by opth-gen.awk. */"
33 print "#ifndef OPTIONS_H"
34 print "#define OPTIONS_H"
36 print "#include \"flag-types.h\""
39 if (n_extra_h_includes > 0) {
40 for (i = 0; i < n_extra_h_includes; i++) {
41 print "#include " quote extra_h_includes[i] quote
46 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
47 print "#ifndef GENERATOR_FILE"
48 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
49 print "struct GTY(()) gcc_options"
51 print "struct gcc_options"
56 for (i = 0; i < n_extra_vars; i++) {
63 sub("^.*[ *]", "", name)
64 sub("\\[.*\\]$", "", name)
65 sub("\\[.*\\]$", "", type)
66 sub(" *" name "$", "", type)
67 sub("^.*" name, "", type_after)
69 print "#ifdef GENERATOR_FILE"
70 print "extern " orig_var ";"
72 print " " type " x_" name type_after ";"
73 print "#define " name " global_options.x_" name
77 for (i = 0; i < n_opts; i++) {
78 if (flag_set_p("Save", flags[i]))
81 name = var_name(flags[i]);
89 print "#ifdef GENERATOR_FILE"
90 print "extern " var_type(flags[i]) name ";"
92 print " " var_type(flags[i]) "x_" name ";"
93 print "#define " name " global_options.x_" name
96 for (i = 0; i < n_opts; i++) {
97 name = static_var(opts[i], flags[i]);
99 print "#ifndef GENERATOR_FILE"
100 print " " var_type(flags[i]) "x_" name ";"
101 print "#define x_" name " do_not_use"
105 for (i = 0; i < n_opts; i++) {
106 if (flag_set_p("SetByCombined", flags[i])) {
107 print "#ifndef GENERATOR_FILE"
108 print " bool frontend_set_" var_name(flags[i]) ";"
112 print "#ifndef GENERATOR_FILE"
114 print "extern struct gcc_options global_options;"
115 print "extern const struct gcc_options global_options_init;"
116 print "extern struct gcc_options global_options_set;"
117 print "#define target_flags_explicit global_options_set.x_target_flags"
122 # All of the optimization switches gathered together so they can be saved and restored.
123 # This will allow attribute((cold)) to turn on space optimization.
125 # Change the type of normal switches from int to unsigned char to save space.
126 # Also, order the structure so that pointer fields occur first, then int
127 # fields, and then char fields to provide the best packing.
129 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
131 print "/* Structure to save/restore optimization and target specific options. */";
132 print "struct GTY(()) cl_optimization";
140 var_opt_char[0] = "unsigned char x_optimize";
141 var_opt_char[1] = "unsigned char x_optimize_size";
142 var_opt_char[2] = "unsigned char x_optimize_debug";
143 var_opt_char[3] = "unsigned char x_optimize_fast";
145 for (i = 0; i < n_opts; i++) {
146 if (flag_set_p("(Optimization|PerFunction)", flags[i])) {
147 name = var_name(flags[i])
151 if(name in var_opt_seen)
154 var_opt_seen[name]++;
155 otype = var_type_struct(flags[i]);
156 if (otype ~ "^((un)?signed +)?int *$")
157 var_opt_int[n_opt_int++] = otype "x_" name;
159 else if (otype ~ "^((un)?signed +)?short *$")
160 var_opt_short[n_opt_short++] = otype "x_" name;
162 else if (otype ~ "^((un)?signed +)?char *$")
163 var_opt_char[n_opt_char++] = otype "x_" name;
165 else if (otype ~ ("^enum +[_" alnum "]+ *$"))
166 var_opt_enum[n_opt_enum++] = otype "x_" name;
169 var_opt_other[n_opt_other++] = otype "x_" name;
173 for (i = 0; i < n_opt_other; i++) {
174 print " " var_opt_other[i] ";";
177 for (i = 0; i < n_opt_int; i++) {
178 print " " var_opt_int[i] ";";
181 for (i = 0; i < n_opt_enum; i++) {
182 print " " var_opt_enum[i] ";";
185 for (i = 0; i < n_opt_short; i++) {
186 print " " var_opt_short[i] ";";
189 for (i = 0; i < n_opt_char; i++) {
190 print " " var_opt_char[i] ";";
196 # Target and optimization save/restore/print functions.
197 print "/* Structure to save/restore selected target specific options. */";
198 print "struct GTY(()) cl_target_option";
207 for (i = 0; i < n_target_save; i++) {
208 if (target_save_decl[i] ~ "^((un)?signed +)?int +[_" alnum "]+$")
209 var_target_int[n_target_int++] = target_save_decl[i];
211 else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_" alnum "]+$")
212 var_target_short[n_target_short++] = target_save_decl[i];
214 else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_ " alnum "]+$")
215 var_target_char[n_target_char++] = target_save_decl[i];
217 else if (target_save_decl[i] ~ ("^enum +[_" alnum "]+ +[_" alnum "]+$")) {
218 var_target_enum[n_target_enum++] = target_save_decl[i];
221 var_target_other[n_target_other++] = target_save_decl[i];
225 for (i = 0; i < n_opts; i++) {
226 if (flag_set_p("Save", flags[i])) {
227 name = var_name(flags[i])
229 name = "target_flags";
231 if(name in var_save_seen)
234 var_save_seen[name]++;
235 otype = var_type_struct(flags[i])
236 if (otype ~ "^((un)?signed +)?int *$")
237 var_target_int[n_target_int++] = otype "x_" name;
239 else if (otype ~ "^((un)?signed +)?short *$")
240 var_target_short[n_target_short++] = otype "x_" name;
242 else if (otype ~ "^((un)?signed +)?char *$")
243 var_target_char[n_target_char++] = otype "x_" name;
245 else if (otype ~ ("^enum +[_" alnum "]+ +[_" alnum "]+"))
246 var_target_enum[n_target_enum++] = otype "x_" name;
249 var_target_other[n_target_other++] = otype "x_" name;
253 var_target_int[n_target_int++] = "int x_target_flags";
256 for (i = 0; i < n_target_other; i++) {
257 print " " var_target_other[i] ";";
260 for (i = 0; i < n_target_enum; i++) {
261 print " " var_target_enum[i] ";";
264 for (i = 0; i < n_target_int; i++) {
265 print " " var_target_int[i] ";";
268 for (i = 0; i < n_target_short; i++) {
269 print " " var_target_short[i] ";";
272 for (i = 0; i < n_target_char; i++) {
273 print " " var_target_char[i] ";";
279 print "/* Save optimization variables into a structure. */"
280 print "extern void cl_optimization_save (struct cl_optimization *, struct gcc_options *);";
282 print "/* Restore optimization variables from a structure. */";
283 print "extern void cl_optimization_restore (struct gcc_options *, struct cl_optimization *);";
285 print "/* Print optimization variables from a structure. */";
286 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
288 print "/* Print different optimization variables from structures provided as arguments. */";
289 print "extern void cl_optimization_print_diff (FILE *, int, cl_optimization *ptr1, cl_optimization *ptr2);";
291 print "/* Save selected option variables into a structure. */"
292 print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *);";
294 print "/* Restore selected option variables from a structure. */"
295 print "extern void cl_target_option_restore (struct gcc_options *, struct cl_target_option *);";
297 print "/* Print target option variables from a structure. */";
298 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
300 print "/* Print different target option variables from structures provided as arguments. */";
301 print "extern void cl_target_option_print_diff (FILE *, int, cl_target_option *ptr1, cl_target_option *ptr2);";
303 print "/* Compare two target option variables from a structure. */";
304 print "extern bool cl_target_option_eq (const struct cl_target_option *, const struct cl_target_option *);";
306 print "/* Hash option variables from a structure. */";
307 print "extern hashval_t cl_target_option_hash (const struct cl_target_option *);";
309 print "/* Hash optimization from a structure. */";
310 print "extern hashval_t cl_optimization_hash (const struct cl_optimization *);";
312 print "/* Generator files may not have access to location_t, and don't need these. */"
313 print "#if defined(UNKNOWN_LOCATION)"
315 print "common_handle_option_auto (struct gcc_options *opts, "
316 print " struct gcc_options *opts_set, "
317 print " const struct cl_decoded_option *decoded, "
318 print " unsigned int lang_mask, int kind, "
319 print " location_t loc, "
320 print " const struct cl_option_handlers *handlers, "
321 print " diagnostic_context *dc); "
322 for (i = 0; i < n_langs; i++) {
323 lang_name = lang_sanitized_name(langs[i]);
325 print lang_name "_handle_option_auto (struct gcc_options *opts, "
326 print " struct gcc_options *opts_set, "
327 print " size_t scode, const char *arg, int value, "
328 print " unsigned int lang_mask, int kind, "
329 print " location_t loc, "
330 print " const struct cl_option_handlers *handlers, "
331 print " diagnostic_context *dc); "
333 print "void cpp_handle_option_auto (const struct gcc_options * opts, size_t scode,"
334 print " struct cpp_options * cpp_opts);"
335 print "void init_global_opts_from_cpp(struct gcc_options * opts, "
336 print " const struct cpp_options * cpp_opts);"
341 for (i = 0; i < n_opts; i++) {
342 name = opt_args("Mask", flags[i])
344 opt = opt_args("InverseMask", flags[i])
346 name = nth_arg(0, opt)
350 if (name != "" && mask_bits[name] == 0) {
352 vname = var_name(flags[i])
356 mask = "OPTION_MASK_"
357 if (host_wide_int[vname] == "yes")
358 mask_1 = "HOST_WIDE_INT_1U"
360 extra_mask_bits[name] = 1
361 print "#define " mask name " (" mask_1 " << " masknum[vname]++ ")"
364 for (i = 0; i < n_extra_masks; i++) {
365 if (extra_mask_bits[extra_masks[i]] == 0)
366 print "#define MASK_" extra_masks[i] " (1U << " masknum[""]++ ")"
369 for (var in masknum) {
370 if (var != "" && host_wide_int[var] == "yes") {
371 print "#if defined(HOST_BITS_PER_WIDE_INT) && " masknum[var] " > HOST_BITS_PER_WIDE_INT"
372 print "#error too many masks for " var
375 else if (masknum[var] > 32) {
377 print "#error too many target masks"
379 print "#error too many masks for " var
384 for (i = 0; i < n_opts; i++) {
385 name = opt_args("Mask", flags[i])
387 opt = opt_args("InverseMask", flags[i])
389 name = nth_arg(0, opt)
393 if (name != "" && mask_macros[name] == 0) {
394 mask_macros[name] = 1
395 vname = var_name(flags[i])
396 mask = "OPTION_MASK_"
398 vname = "target_flags"
400 extra_mask_macros[name] = 1
402 print "#define TARGET_" name \
403 " ((" vname " & " mask name ") != 0)"
404 print "#define TARGET_" name "_P(" vname ")" \
405 " (((" vname ") & " mask name ") != 0)"
408 for (i = 0; i < n_extra_masks; i++) {
409 if (extra_mask_macros[extra_masks[i]] == 0)
410 print "#define TARGET_" extra_masks[i] \
411 " ((target_flags & MASK_" extra_masks[i] ") != 0)"
415 for (i = 0; i < n_opts; i++) {
416 opt = opt_args("InverseMask", flags[i])
418 vname = var_name(flags[i])
419 mask = "OPTION_MASK_"
421 vname = "target_flags"
424 print "#define TARGET_" nth_arg(1, opt) \
425 " ((" vname " & " mask nth_arg(0, opt) ") == 0)"
430 for (i = 0; i < n_langs; i++) {
431 macros[i] = "CL_" lang_sanitized_name(langs[i])
432 s = substr(" ", length (macros[i]))
433 print "#define " macros[i] s " (1U << " i ")"
435 print "#define CL_LANG_ALL ((1U << " n_langs ") - 1)"
438 print "enum opt_code"
441 for (i = 0; i < n_opts; i++)
442 back_chain[i] = "N_OPTS";
445 for (i = 0; i < n_opts; i++) {
446 # Combine the flags of identical switches. Switches
447 # appear many times if they are handled by many front
449 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
450 flags[i + 1] = flags[i] " " flags[i + 1];
454 len = length (opts[i]);
455 enum = opt_enum(opts[i])
456 enum_string = enum " = " enum_value ","
458 # Aliases do not get enumeration names.
459 if ((flag_set_p("Alias.*", flags[i]) \
460 && !flag_set_p("SeparateAlias", flags[i])) \
461 || flag_set_p("Ignore", flags[i])) {
462 enum_string = "/* " enum_string " */"
465 # If this switch takes joined arguments, back-chain all
466 # subsequent switches to it for which it is a prefix. If
467 # a later switch S is a longer prefix of a switch T, T
468 # will be back-chained to S in a later iteration of this
469 # for() loop, which is what we want.
470 if (flag_set_p("Joined.*", flags[i])) {
471 for (j = i + 1; j < n_opts; j++) {
472 if (substr (opts[j], 1, len) != opts[i])
474 back_chain[j] = enum;
479 length (enum_string))
484 hlp = "N_(\"" help[i] "\")";
486 print " " enum_string s "/* -" opts[i] " */"
491 print " OPT_SPECIAL_unknown,"
492 print " OPT_SPECIAL_ignore,"
493 print " OPT_SPECIAL_program_name,"
494 print " OPT_SPECIAL_input_file"
497 print "#ifdef GCC_C_COMMON_C"
498 print "/* Mapping from cpp message reasons to the options that enable them. */"
499 print "#include <cpplib.h>"
500 print "struct cpp_reason_option_codes_t"
502 print " const int reason; /* cpplib message reason. */"
503 print " const int option_code; /* gcc option that controls this message. */"
506 print "static const struct cpp_reason_option_codes_t cpp_reason_option_codes[] = {"
507 for (i = 0; i < n_opts; i++) {
508 # With identical flags, pick only the last one. The
509 # earlier loop ensured that it has all flags merged,
510 # and a nonempty help text if one of the texts was nonempty.
511 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
514 cpp_reason = nth_arg(0, opt_args("CppReason", flags[i]));
515 if (cpp_reason != "") {
516 cpp_reason = cpp_reason ",";
517 printf(" {%-40s %s},\n", cpp_reason, opt_enum(opts[i]))
520 printf(" {%-40s 0},\n", "CPP_W_NONE,")
524 print "#endif /* OPTIONS_H */"