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;
80 else if ($1 == "Enum") {
82 name = opt_args("Name", props)
83 type = opt_args("Type", props)
84 unknown_error = opt_args("UnknownError", props)
85 enum_names[n_enums] = name
86 enum_type[name] = type
87 enum_index[name] = n_enums
88 enum_unknown_error[name] = unknown_error
92 else if ($1 == "EnumValue") {
94 enum_name = opt_args("Enum", props)
95 string = opt_args("String", props)
96 value = opt_args("Value", props)
98 val_flags = val_flags \
99 test_flag("Canonical", props, "| CL_ENUM_CANONICAL") \
100 test_flag("DriverOnly", props, "| CL_ENUM_DRIVER_ONLY")
101 enum_data[enum_name] = enum_data[enum_name] \
102 " { " quote string quote ", " value ", " val_flags \
106 name = opt_args("Mask", $1)
114 extra_masks[n_extra_masks++] = name
119 # Dump out an enumeration into a .h file.
120 # Combine the flags of duplicate options.
122 print "/* This file is auto-generated by opth-gen.awk. */"
124 print "#ifndef OPTIONS_H"
125 print "#define OPTIONS_H"
127 print "#include \"flag-types.h\""
130 if (n_extra_h_includes > 0) {
131 for (i = 0; i < n_extra_h_includes; i++) {
132 print "#include " quote extra_h_includes[i] quote
137 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
138 print "#ifndef GENERATOR_FILE"
139 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
140 print "struct GTY(()) gcc_options"
142 print "struct gcc_options"
147 for (i = 0; i < n_extra_vars; i++) {
149 sub(" *=.*", "", var)
154 sub("^.*[ *]", "", name)
155 sub("\\[.*\\]$", "", name)
156 sub("\\[.*\\]$", "", type)
157 sub(" *" name "$", "", type)
158 sub("^.*" name, "", type_after)
160 print "#ifdef GENERATOR_FILE"
161 print "extern " orig_var ";"
163 print " " type " x_" name type_after ";"
164 print "#define " name " global_options.x_" name
168 for (i = 0; i < n_opts; i++) {
169 if (flag_set_p("Save", flags[i]))
172 name = var_name(flags[i]);
176 if (name in var_seen)
180 print "#ifdef GENERATOR_FILE"
181 print "extern " var_type(flags[i]) name ";"
183 print " " var_type(flags[i]) "x_" name ";"
184 print "#define " name " global_options.x_" name
187 for (i = 0; i < n_opts; i++) {
188 name = static_var(opts[i], flags[i]);
190 print "#ifndef GENERATOR_FILE"
191 print " " var_type(flags[i]) "x_" name ";"
192 print "#define x_" name " do_not_use"
196 print "#ifndef GENERATOR_FILE"
198 print "extern struct gcc_options global_options;"
199 print "extern const struct gcc_options global_options_init;"
200 print "extern struct gcc_options global_options_set;"
201 print "#define target_flags_explicit global_options_set.x_target_flags"
206 # All of the optimization switches gathered together so they can be saved and restored.
207 # This will allow attribute((cold)) to turn on space optimization.
209 # Change the type of normal switches from int to unsigned char to save space.
210 # Also, order the structure so that pointer fields occur first, then int
211 # fields, and then char fields to provide the best packing.
213 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
215 print "/* Structure to save/restore optimization and target specific options. */";
216 print "struct GTY(()) cl_optimization";
224 var_opt_char[0] = "unsigned char x_optimize";
225 var_opt_char[1] = "unsigned char x_optimize_size";
226 var_opt_enum[0] = "enum fp_contract_mode x_flag_fp_contract_mode";
228 for (i = 0; i < n_opts; i++) {
229 if (flag_set_p("Optimization", flags[i])) {
230 name = var_name(flags[i])
234 if(name in var_opt_seen)
237 var_opt_seen[name]++;
238 otype = var_type_struct(flags[i]);
239 if (otype ~ "^((un)?signed +)?int *$")
240 var_opt_int[n_opt_int++] = otype "x_" name;
242 else if (otype ~ "^((un)?signed +)?short *$")
243 var_opt_short[n_opt_short++] = otype "x_" name;
245 else if (otype ~ "^((un)?signed +)?char *$")
246 var_opt_char[n_opt_char++] = otype "x_" name;
248 else if (otype ~ ("^enum +[_" alnum "]+ *$"))
249 var_opt_enum[n_opt_enum++] = otype "x_" name;
252 var_opt_other[n_opt_other++] = otype "x_" name;
256 for (i = 0; i < n_opt_other; i++) {
257 print " " var_opt_other[i] ";";
260 for (i = 0; i < n_opt_int; i++) {
261 print " " var_opt_int[i] ";";
264 for (i = 0; i < n_opt_enum; i++) {
265 print " " var_opt_enum[i] ";";
268 for (i = 0; i < n_opt_short; i++) {
269 print " " var_opt_short[i] ";";
272 for (i = 0; i < n_opt_char; i++) {
273 print " " var_opt_char[i] ";";
279 # Target and optimization save/restore/print functions.
280 print "/* Structure to save/restore selected target specific options. */";
281 print "struct GTY(()) cl_target_option";
290 for (i = 0; i < n_target_save; i++) {
291 if (target_save_decl[i] ~ "^((un)?signed +)?int +[_" alnum "]+$")
292 var_target_int[n_target_int++] = target_save_decl[i];
294 else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_" alnum "]+$")
295 var_target_short[n_target_short++] = target_save_decl[i];
297 else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_ " alnum "]+$")
298 var_target_char[n_target_char++] = target_save_decl[i];
300 else if (target_save_decl[i] ~ ("^enum +[_" alnum "]+ +[_" alnum "]+$")) {
301 var_target_enum[n_target_enum++] = target_save_decl[i];
304 var_target_other[n_target_other++] = target_save_decl[i];
308 for (i = 0; i < n_opts; i++) {
309 if (flag_set_p("Save", flags[i])) {
310 name = var_name(flags[i])
312 name = "target_flags";
314 if(name in var_save_seen)
317 var_save_seen[name]++;
318 otype = var_type_struct(flags[i])
319 if (otype ~ "^((un)?signed +)?int *$")
320 var_target_int[n_target_int++] = otype "x_" name;
322 else if (otype ~ "^((un)?signed +)?short *$")
323 var_target_short[n_target_short++] = otype "x_" name;
325 else if (otype ~ "^((un)?signed +)?char *$")
326 var_target_char[n_target_char++] = otype "x_" name;
328 else if (otype ~ ("^enum +[_" alnum "]+ +[_" alnum "]+"))
329 var_target_enum[n_target_enum++] = otype "x_" name;
332 var_target_other[n_target_other++] = otype "x_" name;
336 var_target_int[n_target_int++] = "int x_target_flags";
339 for (i = 0; i < n_target_other; i++) {
340 print " " var_target_other[i] ";";
343 for (i = 0; i < n_target_enum; i++) {
344 print " " var_target_enum[i] ";";
347 for (i = 0; i < n_target_int; i++) {
348 print " " var_target_int[i] ";";
351 for (i = 0; i < n_target_short; i++) {
352 print " " var_target_short[i] ";";
355 for (i = 0; i < n_target_char; i++) {
356 print " " var_target_char[i] ";";
362 print "/* Save optimization variables into a structure. */"
363 print "extern void cl_optimization_save (struct cl_optimization *, struct gcc_options *);";
365 print "/* Restore optimization variables from a structure. */";
366 print "extern void cl_optimization_restore (struct gcc_options *, struct cl_optimization *);";
368 print "/* Print optimization variables from a structure. */";
369 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
371 print "/* Save selected option variables into a structure. */"
372 print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *);";
374 print "/* Restore selected option variables from a structure. */"
375 print "extern void cl_target_option_restore (struct gcc_options *, struct cl_target_option *);";
377 print "/* Print target option variables from a structure. */";
378 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
382 for (i = 0; i < n_opts; i++) {
383 name = opt_args("Mask", flags[i])
384 vname = var_name(flags[i])
387 mask = "OPTION_MASK_"
389 if (name != "" && !flag_set_p("MaskExists", flags[i]))
390 print "#define " mask name " (1 << " masknum[vname]++ ")"
392 for (i = 0; i < n_extra_masks; i++) {
393 print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
396 for (var in masknum) {
397 if (masknum[var] > 31) {
399 print "#error too many target masks"
401 print "#error too many masks for " var
406 for (i = 0; i < n_opts; i++) {
407 name = opt_args("Mask", flags[i])
408 vname = var_name(flags[i])
410 mask = "OPTION_MASK_"
412 vname = "target_flags"
416 if (name != "" && !flag_set_p("MaskExists", flags[i]))
417 print "#define " macro name \
418 " ((" vname " & " mask name ") != 0)"
420 for (i = 0; i < n_extra_masks; i++) {
421 print "#define TARGET_" extra_masks[i] \
422 " ((target_flags & MASK_" extra_masks[i] ") != 0)"
426 for (i = 0; i < n_opts; i++) {
427 opt = opt_args("InverseMask", flags[i])
429 vname = var_name(flags[i])
431 mask = "OPTION_MASK_"
433 vname = "target_flags"
437 print "#define " macro nth_arg(1, opt) \
438 " ((" vname " & " mask nth_arg(0, opt) ") == 0)"
443 for (i = 0; i < n_langs; i++) {
444 macros[i] = "CL_" langs[i]
445 gsub( "[^" alnum "_]", "X", macros[i] )
446 s = substr(" ", length (macros[i]))
447 print "#define " macros[i] s " (1 << " i ")"
449 print "#define CL_LANG_ALL ((1 << " n_langs ") - 1)"
452 print "enum opt_code"
455 for (i = 0; i < n_opts; i++)
456 back_chain[i] = "N_OPTS";
459 for (i = 0; i < n_opts; i++) {
460 # Combine the flags of identical switches. Switches
461 # appear many times if they are handled by many front
463 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
464 flags[i + 1] = flags[i] " " flags[i + 1];
468 len = length (opts[i]);
469 enum = opt_enum(opts[i])
470 enum_string = enum " = " enum_value ","
472 # Aliases do not get enumeration names.
473 if ((flag_set_p("Alias.*", flags[i]) \
474 && !flag_set_p("SeparateAlias", flags[i])) \
475 || flag_set_p("Ignore", flags[i])) {
476 enum_string = "/* " enum_string " */"
479 # If this switch takes joined arguments, back-chain all
480 # subsequent switches to it for which it is a prefix. If
481 # a later switch S is a longer prefix of a switch T, T
482 # will be back-chained to S in a later iteration of this
483 # for() loop, which is what we want.
484 if (flag_set_p("Joined.*", flags[i])) {
485 for (j = i + 1; j < n_opts; j++) {
486 if (substr (opts[j], 1, len) != opts[i])
488 back_chain[j] = enum;
493 length (enum_string))
498 hlp = "N_(\"" help[i] "\")";
500 print " " enum_string s "/* -" opts[i] " */"
505 print " OPT_SPECIAL_unknown,"
506 print " OPT_SPECIAL_ignore,"
507 print " OPT_SPECIAL_program_name,"
508 print " OPT_SPECIAL_input_file"
511 print "#endif /* OPTIONS_H */"