1 # Copyright (C) 2003,2004,2005,2006,2007,2008, 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
24 # This program uses functions from opt-functions.awk and code from
26 # Usage: awk -f opt-functions.awk -f opt-read.awk -f opth-gen.awk \
27 # < inputfile > options.h
29 # Dump out an enumeration into a .h file.
30 # Combine the flags of duplicate options.
32 print "/* This file is auto-generated by opth-gen.awk. */"
34 print "#ifndef OPTIONS_H"
35 print "#define OPTIONS_H"
37 print "#include \"flag-types.h\""
40 if (n_extra_h_includes > 0) {
41 for (i = 0; i < n_extra_h_includes; i++) {
42 print "#include " quote extra_h_includes[i] quote
47 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
48 print "#ifndef GENERATOR_FILE"
49 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
50 print "struct GTY(()) gcc_options"
52 print "struct gcc_options"
57 for (i = 0; i < n_extra_vars; i++) {
64 sub("^.*[ *]", "", name)
65 sub("\\[.*\\]$", "", name)
66 sub("\\[.*\\]$", "", type)
67 sub(" *" name "$", "", type)
68 sub("^.*" name, "", type_after)
70 print "#ifdef GENERATOR_FILE"
71 print "extern " orig_var ";"
73 print " " type " x_" name type_after ";"
74 print "#define " name " global_options.x_" name
78 for (i = 0; i < n_opts; i++) {
79 if (flag_set_p("Save", flags[i]))
82 name = var_name(flags[i]);
90 print "#ifdef GENERATOR_FILE"
91 print "extern " var_type(flags[i]) name ";"
93 print " " var_type(flags[i]) "x_" name ";"
94 print "#define " name " global_options.x_" name
97 for (i = 0; i < n_opts; i++) {
98 name = static_var(opts[i], flags[i]);
100 print "#ifndef GENERATOR_FILE"
101 print " " var_type(flags[i]) "x_" name ";"
102 print "#define x_" name " do_not_use"
106 for (i = 0; i < n_opts; i++) {
107 if (flag_set_p("SetByCombined", flags[i])) {
108 print "#ifndef GENERATOR_FILE"
109 print " bool frontend_set_" var_name(flags[i]) ";"
113 print "#ifndef GENERATOR_FILE"
115 print "extern struct gcc_options global_options;"
116 print "extern const struct gcc_options global_options_init;"
117 print "extern struct gcc_options global_options_set;"
118 print "#define target_flags_explicit global_options_set.x_target_flags"
123 # All of the optimization switches gathered together so they can be saved and restored.
124 # This will allow attribute((cold)) to turn on space optimization.
126 # Change the type of normal switches from int to unsigned char to save space.
127 # Also, order the structure so that pointer fields occur first, then int
128 # fields, and then char fields to provide the best packing.
130 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
132 print "/* Structure to save/restore optimization and target specific options. */";
133 print "struct GTY(()) cl_optimization";
141 var_opt_char[0] = "unsigned char x_optimize";
142 var_opt_char[1] = "unsigned char x_optimize_size";
143 var_opt_enum[0] = "enum fp_contract_mode x_flag_fp_contract_mode";
145 for (i = 0; i < n_opts; i++) {
146 if (flag_set_p("Optimization", 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 "/* Save selected option variables into a structure. */"
289 print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *);";
291 print "/* Restore selected option variables from a structure. */"
292 print "extern void cl_target_option_restore (struct gcc_options *, struct cl_target_option *);";
294 print "/* Print target option variables from a structure. */";
295 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
299 for (i = 0; i < n_opts; i++) {
300 name = opt_args("Mask", flags[i])
301 vname = var_name(flags[i])
305 mask = "OPTION_MASK_"
306 if (host_wide_int[vname] == "yes")
307 mask_1 = "HOST_WIDE_INT_1"
309 if (name != "" && !flag_set_p("MaskExists", flags[i]))
310 print "#define " mask name " (" mask_1 " << " masknum[vname]++ ")"
312 for (i = 0; i < n_extra_masks; i++) {
313 print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
316 for (var in masknum) {
317 if (var != "" && host_wide_int[var] == "yes") {
318 print" #if defined(HOST_BITS_PER_WIDE_INT) && " masknum[var] " >= HOST_BITS_PER_WIDE_INT"
319 print "#error too many masks for " var
322 else if (masknum[var] > 31) {
324 print "#error too many target masks"
326 print "#error too many masks for " var
331 for (i = 0; i < n_opts; i++) {
332 name = opt_args("Mask", flags[i])
333 vname = var_name(flags[i])
335 mask = "OPTION_MASK_"
337 vname = "target_flags"
341 if (name != "" && !flag_set_p("MaskExists", flags[i]))
342 print "#define " macro name \
343 " ((" vname " & " mask name ") != 0)"
345 for (i = 0; i < n_extra_masks; i++) {
346 print "#define TARGET_" extra_masks[i] \
347 " ((target_flags & MASK_" extra_masks[i] ") != 0)"
351 for (i = 0; i < n_opts; i++) {
352 opt = opt_args("InverseMask", flags[i])
354 vname = var_name(flags[i])
356 mask = "OPTION_MASK_"
358 vname = "target_flags"
362 print "#define " macro nth_arg(1, opt) \
363 " ((" vname " & " mask nth_arg(0, opt) ") == 0)"
368 for (i = 0; i < n_langs; i++) {
369 macros[i] = "CL_" langs[i]
370 gsub( "[^" alnum "_]", "X", macros[i] )
371 s = substr(" ", length (macros[i]))
372 print "#define " macros[i] s " (1U << " i ")"
374 print "#define CL_LANG_ALL ((1U << " n_langs ") - 1)"
377 print "enum opt_code"
380 for (i = 0; i < n_opts; i++)
381 back_chain[i] = "N_OPTS";
384 for (i = 0; i < n_opts; i++) {
385 # Combine the flags of identical switches. Switches
386 # appear many times if they are handled by many front
388 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
389 flags[i + 1] = flags[i] " " flags[i + 1];
393 len = length (opts[i]);
394 enum = opt_enum(opts[i])
395 enum_string = enum " = " enum_value ","
397 # Aliases do not get enumeration names.
398 if ((flag_set_p("Alias.*", flags[i]) \
399 && !flag_set_p("SeparateAlias", flags[i])) \
400 || flag_set_p("Ignore", flags[i])) {
401 enum_string = "/* " enum_string " */"
404 # If this switch takes joined arguments, back-chain all
405 # subsequent switches to it for which it is a prefix. If
406 # a later switch S is a longer prefix of a switch T, T
407 # will be back-chained to S in a later iteration of this
408 # for() loop, which is what we want.
409 if (flag_set_p("Joined.*", flags[i])) {
410 for (j = i + 1; j < n_opts; j++) {
411 if (substr (opts[j], 1, len) != opts[i])
413 back_chain[j] = enum;
418 length (enum_string))
423 hlp = "N_(\"" help[i] "\")";
425 print " " enum_string s "/* -" opts[i] " */"
430 print " OPT_SPECIAL_unknown,"
431 print " OPT_SPECIAL_ignore,"
432 print " OPT_SPECIAL_program_name,"
433 print " OPT_SPECIAL_input_file"
436 print "#endif /* OPTIONS_H */"