1 # Copyright (C) 2003-2020 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";
141 var_opt_char
[0] =
"unsigned char x_optimize";
142 var_opt_char
[1] =
"unsigned char x_optimize_size";
143 var_opt_char
[2] =
"unsigned char x_optimize_debug";
144 var_opt_char
[3] =
"unsigned char x_optimize_fast";
146 for (i =
0; i
< n_opts
; i
++) {
147 if (flag_set_p
("(Optimization|PerFunction)", flags
[i
])) {
148 name = var_name
(flags
[i
])
152 if(name in var_opt_seen
)
155 var_opt_seen
[name
]++;
157 otype = var_type_struct
(flags
[i
]);
158 if (otype ~
"^((un)?signed +)?int *$")
159 var_opt_int
[n_opt_int
++] = otype
"x_" name
;
161 else if (otype ~
"^((un)?signed +)?short *$")
162 var_opt_short
[n_opt_short
++] = otype
"x_" name
;
164 else if (otype ~
"^((un)?signed +)?char *$")
165 var_opt_char
[n_opt_char
++] = otype
"x_" name
;
167 else if (otype ~
("^enum +[_" alnum
"]+ *$"))
168 var_opt_enum
[n_opt_enum
++] = otype
"x_" name
;
171 var_opt_other
[n_opt_other
++] = otype
"x_" name
;
175 for (i =
0; i
< n_opt_other
; i
++) {
176 print " " var_opt_other
[i
] ";";
179 for (i =
0; i
< n_opt_int
; i
++) {
180 print " " var_opt_int
[i
] ";";
183 for (i =
0; i
< n_opt_enum
; i
++) {
184 print " " var_opt_enum
[i
] ";";
187 for (i =
0; i
< n_opt_short
; i
++) {
188 print " " var_opt_short
[i
] ";";
191 for (i =
0; i
< n_opt_char
; i
++) {
192 print " " var_opt_char
[i
] ";";
195 print " /* " n_opt_explicit
" members */";
196 print " unsigned HOST_WIDE_INT explicit_mask[" int
((n_opt_explicit
+ 63) / 64) "];";
201 # Target and optimization save/restore/print functions.
202 print "/* Structure to save/restore selected target specific options. */";
203 print "struct GTY(()) cl_target_option";
211 n_target_explicit = n_extra_target_vars
;
213 for (i =
0; i
< n_target_save
; i
++) {
214 if (target_save_decl
[i
] ~
"^((un)?signed +)?int +[_" alnum
"]+$")
215 var_target_int
[n_target_int
++] = target_save_decl
[i
];
217 else if (target_save_decl
[i
] ~
"^((un)?signed +)?short +[_" alnum
"]+$")
218 var_target_short
[n_target_short
++] = target_save_decl
[i
];
220 else if (target_save_decl
[i
] ~
"^((un)?signed +)?char +[_ " alnum
"]+$")
221 var_target_char
[n_target_char
++] = target_save_decl
[i
];
223 else if (target_save_decl
[i
] ~
("^enum +[_" alnum
"]+ +[_" alnum
"]+$")) {
224 var_target_enum
[n_target_enum
++] = target_save_decl
[i
];
227 var_target_other
[n_target_other
++] = target_save_decl
[i
];
231 for (i =
0; i
< n_opts
; i
++) {
232 if (flag_set_p
("Save", flags
[i
])) {
233 name = var_name
(flags
[i
])
235 name =
"target_flags";
237 if(name in var_save_seen
)
240 var_save_seen
[name
]++;
242 otype = var_type_struct
(flags
[i
])
243 if (otype ~
"^((un)?signed +)?int *$")
244 var_target_int
[n_target_int
++] = otype
"x_" name
;
246 else if (otype ~
"^((un)?signed +)?short *$")
247 var_target_short
[n_target_short
++] = otype
"x_" name
;
249 else if (otype ~
"^((un)?signed +)?char *$")
250 var_target_char
[n_target_char
++] = otype
"x_" name
;
252 else if (otype ~
("^enum +[_" alnum
"]+ +[_" alnum
"]+"))
253 var_target_enum
[n_target_enum
++] = otype
"x_" name
;
256 var_target_other
[n_target_other
++] = otype
"x_" name
;
260 var_target_int
[n_target_int
++] =
"int x_target_flags";
264 for (i =
0; i
< n_target_other
; i
++) {
265 print " " var_target_other
[i
] ";";
268 for (i =
0; i
< n_target_enum
; i
++) {
269 print " " var_target_enum
[i
] ";";
272 for (i =
0; i
< n_target_int
; i
++) {
273 print " " var_target_int
[i
] ";";
276 for (i =
0; i
< n_target_short
; i
++) {
277 print " " var_target_short
[i
] ";";
280 for (i =
0; i
< n_target_char
; i
++) {
281 print " " var_target_char
[i
] ";";
284 print " /* " n_target_explicit
" members */";
285 print " unsigned HOST_WIDE_INT explicit_mask[" int
((n_target_explicit
+ 63) / 64) "];";
290 print "/* Save optimization variables into a structure. */"
291 print "extern void cl_optimization_save (struct cl_optimization *, struct gcc_options *, struct gcc_options *);";
293 print "/* Restore optimization variables from a structure. */";
294 print "extern void cl_optimization_restore (struct gcc_options *, struct gcc_options *, struct cl_optimization *);";
296 print "/* Print optimization variables from a structure. */";
297 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
299 print "/* Print different optimization variables from structures provided as arguments. */";
300 print "extern void cl_optimization_print_diff (FILE *, int, cl_optimization *ptr1, cl_optimization *ptr2);";
302 print "/* Save selected option variables into a structure. */"
303 print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *, struct gcc_options *);";
305 print "/* Restore selected option variables from a structure. */"
306 print "extern void cl_target_option_restore (struct gcc_options *, struct gcc_options *, struct cl_target_option *);";
308 print "/* Print target option variables from a structure. */";
309 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
311 print "/* Print different target option variables from structures provided as arguments. */";
312 print "extern void cl_target_option_print_diff (FILE *, int, cl_target_option *ptr1, cl_target_option *ptr2);";
314 print "/* Compare two target option variables from a structure. */";
315 print "extern bool cl_target_option_eq (const struct cl_target_option *, const struct cl_target_option *);";
317 print "/* Free heap memory used by target option variables. */";
318 print "extern void cl_target_option_free (struct cl_target_option *);";
320 print "/* Hash option variables from a structure. */";
321 print "extern hashval_t cl_target_option_hash (const struct cl_target_option *);";
323 print "/* Hash optimization from a structure. */";
324 print "extern hashval_t cl_optimization_hash (const struct cl_optimization *);";
326 print "/* Compare two optimization options. */";
327 print "extern bool cl_optimization_option_eq (cl_optimization const *ptr1, cl_optimization const *ptr2);"
329 print "/* Free heap memory used by optimization options. */";
330 print "extern void cl_optimization_option_free (cl_optimization *ptr1);"
332 print "/* Compare and report difference for a part of cl_optimization options. */";
333 print "extern void cl_optimization_compare (gcc_options *ptr1, gcc_options *ptr2);";
335 print "/* Generator files may not have access to location_t, and don't need these. */"
336 print "#if defined(UNKNOWN_LOCATION)"
338 print "common_handle_option_auto (struct gcc_options *opts, "
339 print " struct gcc_options *opts_set, "
340 print " const struct cl_decoded_option *decoded, "
341 print " unsigned int lang_mask, int kind, "
342 print " location_t loc, "
343 print " const struct cl_option_handlers *handlers, "
344 print " diagnostic_context *dc); "
345 for (i =
0; i
< n_langs
; i
++) {
346 lang_name = lang_sanitized_name
(langs
[i
]);
348 print lang_name
"_handle_option_auto (struct gcc_options *opts,"
349 print " struct gcc_options *opts_set,"
350 print " size_t scode, const char *arg,"
351 print " HOST_WIDE_INT value,"
352 print " unsigned int lang_mask, int kind,"
353 print " location_t loc,"
354 print " const struct cl_option_handlers *handlers,"
355 print " diagnostic_context *dc);"
357 print "void cpp_handle_option_auto (const struct gcc_options * opts, size_t scode,"
358 print " struct cpp_options * cpp_opts);"
359 print "void init_global_opts_from_cpp(struct gcc_options * opts, "
360 print " const struct cpp_options * cpp_opts);"
365 for (i =
0; i
< n_opts
; i
++) {
366 name = opt_args
("Mask", flags
[i
])
368 opt = opt_args
("InverseMask", flags
[i
])
370 name = nth_arg
(0, opt
)
374 if (name
!= "" && mask_bits
[name
] ==
0) {
376 vname = var_name
(flags
[i
])
380 mask =
"OPTION_MASK_"
381 if (host_wide_int
[vname
] ==
"yes")
382 mask_1 =
"HOST_WIDE_INT_1U"
384 extra_mask_bits
[name
] =
1
385 print "#define " mask name
" (" mask_1
" << " masknum
[vname
]++ ")"
388 for (i =
0; i
< n_extra_masks
; i
++) {
389 if (extra_mask_bits
[extra_masks
[i
]] ==
0)
390 print "#define MASK_" extra_masks
[i
] " (1U << " masknum
[""]++ ")"
393 for (var in masknum
) {
394 if (var
!= "" && host_wide_int
[var
] ==
"yes") {
395 print "#if defined(HOST_BITS_PER_WIDE_INT) && " masknum
[var
] " > HOST_BITS_PER_WIDE_INT"
396 print "#error too many masks for " var
399 else if (masknum
[var
] > 32) {
401 print "#error too many target masks"
403 print "#error too many masks for " var
408 for (i =
0; i
< n_opts
; i
++) {
409 name = opt_args
("Mask", flags
[i
])
411 opt = opt_args
("InverseMask", flags
[i
])
413 name = nth_arg
(0, opt
)
417 if (name
!= "" && mask_macros
[name
] ==
0) {
418 mask_macros
[name
] =
1
419 vname = var_name
(flags
[i
])
420 mask =
"OPTION_MASK_"
422 vname =
"target_flags"
424 extra_mask_macros
[name
] =
1
426 print "#define TARGET_" name \
427 " ((" vname
" & " mask name
") != 0)"
428 print "#define TARGET_" name
"_P(" vname
")" \
429 " (((" vname
") & " mask name
") != 0)"
432 for (i =
0; i
< n_extra_masks
; i
++) {
433 if (extra_mask_macros
[extra_masks
[i
]] ==
0)
434 print "#define TARGET_" extra_masks
[i
] \
435 " ((target_flags & MASK_" extra_masks
[i
] ") != 0)"
439 for (i =
0; i
< n_opts
; i
++) {
440 opt = opt_args
("InverseMask", flags
[i
])
442 vname = var_name
(flags
[i
])
443 mask =
"OPTION_MASK_"
445 vname =
"target_flags"
448 print "#define TARGET_" nth_arg
(1, opt
) \
449 " ((" vname
" & " mask nth_arg
(0, opt
) ") == 0)"
454 for (i =
0; i
< n_langs
; i
++) {
455 macros
[i
] =
"CL_" lang_sanitized_name
(langs
[i
])
456 s =
substr(" ", length (macros
[i
]))
457 print "#define " macros
[i
] s
" (1U << " i
")"
459 print "#define CL_LANG_ALL ((1U << " n_langs
") - 1)"
462 print "enum opt_code"
465 for (i =
0; i
< n_opts
; i
++)
466 back_chain
[i
] =
"N_OPTS";
469 for (i =
0; i
< n_opts
; i
++) {
470 # Combine the flags of identical switches. Switches
471 # appear many times if they are handled by many front
473 while( i
+ 1 != n_opts
&& opts
[i
] == opts
[i
+ 1] ) {
474 flags
[i
+ 1] = flags
[i
] " " flags
[i
+ 1];
478 len =
length (opts
[i
]);
479 enum = opt_enum
(opts
[i
])
480 enum_string = enum
" = " enum_value
","
482 # Aliases do not get enumeration names.
483 if ((flag_set_p
("Alias.*", flags
[i
]) \
484 && !flag_set_p
("SeparateAlias", flags
[i
])) \
485 || flag_set_p
("Ignore", flags
[i
])) {
486 enum_string =
"/* " enum_string
" */"
489 # If this switch takes joined arguments, back-chain all
490 # subsequent switches to it for which it is a prefix. If
491 # a later switch S is a longer prefix of a switch T, T
492 # will be back-chained to S in a later iteration of this
493 # for() loop, which is what we want.
494 if (flag_set_p
("Joined.*", flags
[i
])) {
495 for (j = i
+ 1; j
< n_opts
; j
++) {
496 if (substr (opts
[j
], 1, len
) != opts
[i
])
498 back_chain
[j
] = enum
;
503 length (enum_string
))
508 hlp =
"N_(\"" help
[i
] "\")";
510 print " " enum_string s
"/* -" opts
[i
] " */"
515 print " OPT_SPECIAL_unknown,"
516 print " OPT_SPECIAL_ignore,"
517 print " OPT_SPECIAL_warn_removed,"
518 print " OPT_SPECIAL_program_name,"
519 print " OPT_SPECIAL_input_file"
522 print "#ifdef GCC_C_COMMON_C"
523 print "/* Mapping from cpp message reasons to the options that enable them. */"
524 print "#include <cpplib.h>"
525 print "struct cpp_reason_option_codes_t"
527 print " /* cpplib message reason. */"
528 print " const enum cpp_warning_reason reason;"
529 print " /* gcc option that controls this message. */"
530 print " const int option_code;"
533 print "static const struct cpp_reason_option_codes_t cpp_reason_option_codes[] = {"
534 for (i =
0; i
< n_opts
; i
++) {
535 # With identical flags, pick only the last one. The
536 # earlier loop ensured that it has all flags merged,
537 # and a nonempty help text if one of the texts was nonempty.
538 while( i
+ 1 != n_opts
&& opts
[i
] == opts
[i
+ 1] ) {
541 cpp_reason = nth_arg
(0, opt_args
("CppReason", flags
[i
]));
542 if (cpp_reason
!= "") {
543 cpp_reason = cpp_reason
",";
544 printf(" {%-40s %s},\n", cpp_reason
, opt_enum
(opts
[i
]))
547 printf(" {%-40s 0},\n", "CPP_W_NONE,")
551 print "#endif /* OPTIONS_H */"