1 # Copyright (C) 2003,2004,2005,2006,2007,2008, 2010
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
24 # This program uses functions from opt-functions.awk
25 # Usage: awk -f opt-functions.awk -f opth-gen.awk < inputfile > options.h
32 n_extra_target_vars = 0
34 n_extra_c_includes = 0
35 n_extra_h_includes = 0
41 # Collect the text and flags of each option into an array
43 if ($1 == "Language") {
47 else if ($1 == "TargetSave") {
48 # Make sure the declarations are put in source order
49 target_save_decl[n_target_save] = $2
52 else if ($1 == "Variable") {
53 extra_vars[n_extra_vars] = $2
56 else if ($1 == "TargetVariable") {
57 # Combination of TargetSave and Variable
58 extra_vars[n_extra_vars] = $2
66 sub("^.*[ *]", "", name)
67 sub(" *" name "$", "", type)
68 target_save_decl[n_target_save] = type " x_" name
71 extra_target_vars[n_extra_target_vars] = name
74 else if ($1 == "HeaderInclude") {
75 extra_h_includes[n_extra_h_includes++] = $2;
77 else if ($1 == "SourceInclude") {
78 extra_c_includes[n_extra_c_includes++] = $2;
81 name = opt_args("Mask", $1)
89 extra_masks[n_extra_masks++] = name
94 # Dump out an enumeration into a .h file.
95 # Combine the flags of duplicate options.
97 print "/* This file is auto-generated by opth-gen.awk. */"
99 print "#ifndef OPTIONS_H"
100 print "#define OPTIONS_H"
102 print "#include \"flag-types.h\""
105 if (n_extra_h_includes > 0) {
106 for (i = 0; i < n_extra_h_includes; i++) {
107 print "#include " quote extra_h_includes[i] quote
112 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
113 print "#ifndef GENERATOR_FILE"
114 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
115 print "struct GTY(()) gcc_options"
117 print "struct gcc_options"
122 for (i = 0; i < n_extra_vars; i++) {
124 sub(" *=.*", "", var)
129 sub("^.*[ *]", "", name)
130 sub("\\[.*\\]$", "", name)
131 sub("\\[.*\\]$", "", type)
132 sub(" *" name "$", "", type)
133 sub("^.*" name, "", type_after)
135 print "#ifdef GENERATOR_FILE"
136 print "extern " orig_var ";"
138 print " " type " x_" name type_after ";"
139 print "#define " name " global_options.x_" name
143 for (i = 0; i < n_opts; i++) {
144 if (flag_set_p("Save", flags[i]))
147 name = var_name(flags[i]);
151 if (name in var_seen)
155 print "#ifdef GENERATOR_FILE"
156 print "extern " var_type(flags[i]) name ";"
158 print " " var_type(flags[i]) "x_" name ";"
159 print "#define " name " global_options.x_" name
162 for (i = 0; i < n_opts; i++) {
163 name = static_var(opts[i], flags[i]);
165 print "#ifndef GENERATOR_FILE"
166 print " " var_type(flags[i]) "x_" name ";"
167 print "#define x_" name " do_not_use"
171 print "#ifndef GENERATOR_FILE"
173 print "extern struct gcc_options global_options;"
174 print "extern const struct gcc_options global_options_init;"
175 print "extern struct gcc_options global_options_set;"
176 print "#define target_flags_explicit global_options_set.x_target_flags"
181 # All of the optimization switches gathered together so they can be saved and restored.
182 # This will allow attribute((cold)) to turn on space optimization.
184 # Change the type of normal switches from int to unsigned char to save space.
185 # Also, order the structure so that pointer fields occur first, then int
186 # fields, and then char fields to provide the best packing.
188 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
190 print "/* Structure to save/restore optimization and target specific options. */";
191 print "struct GTY(()) cl_optimization";
199 var_opt_char[0] = "unsigned char x_optimize";
200 var_opt_char[1] = "unsigned char x_optimize_size";
201 var_opt_enum[0] = "enum fp_contract_mode x_flag_fp_contract_mode";
203 for (i = 0; i < n_opts; i++) {
204 if (flag_set_p("Optimization", flags[i])) {
205 name = var_name(flags[i])
209 if(name in var_opt_seen)
212 var_opt_seen[name]++;
213 otype = var_type_struct(flags[i]);
214 if (otype ~ "^((un)?signed +)?int *$")
215 var_opt_int[n_opt_int++] = otype "x_" name;
217 else if (otype ~ "^((un)?signed +)?short *$")
218 var_opt_short[n_opt_short++] = otype "x_" name;
220 else if (otype ~ "^((un)?signed +)?char *$")
221 var_opt_char[n_opt_char++] = otype "x_" name;
223 else if (otype ~ ("^enum +[_" alnum "]+ *$"))
224 var_opt_enum[n_opt_enum++] = otype "x_" name;
227 var_opt_other[n_opt_other++] = otype "x_" name;
231 for (i = 0; i < n_opt_other; i++) {
232 print " " var_opt_other[i] ";";
235 for (i = 0; i < n_opt_int; i++) {
236 print " " var_opt_int[i] ";";
239 for (i = 0; i < n_opt_enum; i++) {
240 print " " var_opt_enum[i] ";";
243 for (i = 0; i < n_opt_short; i++) {
244 print " " var_opt_short[i] ";";
247 for (i = 0; i < n_opt_char; i++) {
248 print " " var_opt_char[i] ";";
254 # Target and optimization save/restore/print functions.
255 print "/* Structure to save/restore selected target specific options. */";
256 print "struct GTY(()) cl_target_option";
265 for (i = 0; i < n_target_save; i++) {
266 if (target_save_decl[i] ~ "^((un)?signed +)?int +[_" alnum "]+$")
267 var_target_int[n_target_int++] = target_save_decl[i];
269 else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_" alnum "]+$")
270 var_target_short[n_target_short++] = target_save_decl[i];
272 else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_ " alnum "]+$")
273 var_target_char[n_target_char++] = target_save_decl[i];
275 else if (target_save_decl[i] ~ ("^enum +[_" alnum "]+ +[_" alnum "]+$")) {
276 var_target_enum[n_target_enum++] = target_save_decl[i];
279 var_target_other[n_target_other++] = target_save_decl[i];
283 for (i = 0; i < n_opts; i++) {
284 if (flag_set_p("Save", flags[i])) {
285 name = var_name(flags[i])
287 name = "target_flags";
289 if(name in var_save_seen)
292 var_save_seen[name]++;
293 otype = var_type_struct(flags[i])
294 if (otype ~ "^((un)?signed +)?int *$")
295 var_target_int[n_target_int++] = otype "x_" name;
297 else if (otype ~ "^((un)?signed +)?short *$")
298 var_target_short[n_target_short++] = otype "x_" name;
300 else if (otype ~ "^((un)?signed +)?char *$")
301 var_target_char[n_target_char++] = otype "x_" name;
303 else if (otype ~ ("^enum +[_" alnum "]+ +[_" alnum "]+"))
304 var_target_enum[n_target_enum++] = otype "x_" name;
307 var_target_other[n_target_other++] = otype "x_" name;
311 var_target_int[n_target_int++] = "int x_target_flags";
314 for (i = 0; i < n_target_other; i++) {
315 print " " var_target_other[i] ";";
318 for (i = 0; i < n_target_enum; i++) {
319 print " " var_target_enum[i] ";";
322 for (i = 0; i < n_target_int; i++) {
323 print " " var_target_int[i] ";";
326 for (i = 0; i < n_target_short; i++) {
327 print " " var_target_short[i] ";";
330 for (i = 0; i < n_target_char; i++) {
331 print " " var_target_char[i] ";";
337 print "/* Save optimization variables into a structure. */"
338 print "extern void cl_optimization_save (struct cl_optimization *, struct gcc_options *);";
340 print "/* Restore optimization variables from a structure. */";
341 print "extern void cl_optimization_restore (struct gcc_options *, struct cl_optimization *);";
343 print "/* Print optimization variables from a structure. */";
344 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
346 print "/* Save selected option variables into a structure. */"
347 print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *);";
349 print "/* Restore selected option variables from a structure. */"
350 print "extern void cl_target_option_restore (struct gcc_options *, struct cl_target_option *);";
352 print "/* Print target option variables from a structure. */";
353 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
357 for (i = 0; i < n_opts; i++) {
358 name = opt_args("Mask", flags[i])
359 vname = var_name(flags[i])
362 mask = "OPTION_MASK_"
364 if (name != "" && !flag_set_p("MaskExists", flags[i]))
365 print "#define " mask name " (1 << " masknum[vname]++ ")"
367 for (i = 0; i < n_extra_masks; i++) {
368 print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
371 for (var in masknum) {
372 if (masknum[var] > 31) {
374 print "#error too many target masks"
376 print "#error too many masks for " var
381 for (i = 0; i < n_opts; i++) {
382 name = opt_args("Mask", flags[i])
383 vname = var_name(flags[i])
385 mask = "OPTION_MASK_"
387 vname = "target_flags"
391 if (name != "" && !flag_set_p("MaskExists", flags[i]))
392 print "#define " macro name \
393 " ((" vname " & " mask name ") != 0)"
395 for (i = 0; i < n_extra_masks; i++) {
396 print "#define TARGET_" extra_masks[i] \
397 " ((target_flags & MASK_" extra_masks[i] ") != 0)"
401 for (i = 0; i < n_opts; i++) {
402 opt = opt_args("InverseMask", flags[i])
404 vname = var_name(flags[i])
406 mask = "OPTION_MASK_"
408 vname = "target_flags"
412 print "#define " macro nth_arg(1, opt) \
413 " ((" vname " & " mask nth_arg(0, opt) ") == 0)"
418 for (i = 0; i < n_langs; i++) {
419 macros[i] = "CL_" langs[i]
420 gsub( "[^" alnum "_]", "X", macros[i] )
421 s = substr(" ", length (macros[i]))
422 print "#define " macros[i] s " (1 << " i ")"
424 print "#define CL_LANG_ALL ((1 << " n_langs ") - 1)"
427 print "enum opt_code"
430 for (i = 0; i < n_opts; i++)
431 back_chain[i] = "N_OPTS";
434 for (i = 0; i < n_opts; i++) {
435 # Combine the flags of identical switches. Switches
436 # appear many times if they are handled by many front
438 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
439 flags[i + 1] = flags[i] " " flags[i + 1];
443 len = length (opts[i]);
444 enum = opt_enum(opts[i])
445 enum_string = enum " = " enum_value ","
447 # Aliases do not get enumeration names.
448 if ((flag_set_p("Alias.*", flags[i]) \
449 && !flag_set_p("SeparateAlias", flags[i])) \
450 || flag_set_p("Ignore", flags[i])) {
451 enum_string = "/* " enum_string " */"
454 # If this switch takes joined arguments, back-chain all
455 # subsequent switches to it for which it is a prefix. If
456 # a later switch S is a longer prefix of a switch T, T
457 # will be back-chained to S in a later iteration of this
458 # for() loop, which is what we want.
459 if (flag_set_p("Joined.*", flags[i])) {
460 for (j = i + 1; j < n_opts; j++) {
461 if (substr (opts[j], 1, len) != opts[i])
463 back_chain[j] = enum;
468 length (enum_string))
473 hlp = "N_(\"" help[i] "\")";
475 print " " enum_string s "/* -" opts[i] " */"
480 print " OPT_SPECIAL_unknown,"
481 print " OPT_SPECIAL_ignore,"
482 print " OPT_SPECIAL_program_name,"
483 print " OPT_SPECIAL_input_file"
486 print "#endif /* OPTIONS_H */"