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
36 # Collect the text and flags of each option into an array
38 if ($
1 ==
"Language") {
42 else if ($
1 ==
"TargetSave") {
43 # Make sure the declarations are put in source order
44 target_save_decl
[n_target_save
] = $
2
47 else if ($
1 ==
"Variable") {
48 extra_vars
[n_extra_vars
] = $
2
52 name = opt_args
("Mask", $
1)
60 extra_masks
[n_extra_masks
++] = name
65 # Dump out an enumeration into a .h file.
66 # Combine the flags of duplicate options.
68 print "/* This file is auto-generated by opth-gen.awk. */"
70 print "#ifndef OPTIONS_H"
71 print "#define OPTIONS_H"
73 print "extern int target_flags_explicit;"
78 print "#ifndef GENERATOR_FILE"
79 print "struct gcc_options\n{"
82 for (i =
0; i
< n_extra_vars
; i
++) {
88 sub("^.*[ *]", "", name
)
89 sub(" *" name
"$", "", type
)
91 print "#ifdef GENERATOR_FILE"
92 print "extern " orig_var
";"
94 print " " type
" x_" name
";"
95 print "#define " name
" global_options.x_" name
99 for (i =
0; i
< n_opts
; i
++) {
100 if (flag_set_p
("Save", flags
[i
]))
103 name = var_name
(flags
[i
]);
107 if (name in var_seen
)
111 print "#ifdef GENERATOR_FILE"
112 print "extern " var_type
(flags
[i
]) name
";"
114 print " " var_type
(flags
[i
]) "x_" name
";"
115 print "#define " name
" global_options.x_" name
118 print "#ifndef GENERATOR_FILE"
120 print "extern struct gcc_options global_options;"
124 # All of the optimization switches gathered together so they can be saved and restored.
125 # This will allow attribute((cold)) to turn on space optimization.
127 # Change the type of normal switches from int to unsigned char to save space.
128 # Also, order the structure so that pointer fields occur first, then int
129 # fields, and then char fields to provide the best packing.
131 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
133 print "/* Structure to save/restore optimization and target specific options. */";
134 print "struct GTY(()) cl_optimization";
141 var_opt_char
[0] =
"unsigned char x_optimize";
142 var_opt_char
[1] =
"unsigned char x_optimize_size";
144 for (i =
0; i
< n_opts
; i
++) {
145 if (flag_set_p
("Optimization", flags
[i
])) {
146 name = var_name
(flags
[i
])
150 if(name in var_opt_seen
)
153 var_opt_seen
[name
]++;
154 otype = var_type_struct
(flags
[i
]);
155 if (otype ~
"^((un)?signed +)?int *$")
156 var_opt_int
[n_opt_int
++] = otype
"x_" name
;
158 else if (otype ~
"^((un)?signed +)?short *$")
159 var_opt_short
[n_opt_short
++] = otype
"x_" name
;
161 else if (otype ~
"^((un)?signed +)?char *$")
162 var_opt_char
[n_opt_char
++] = otype
"x_" name
;
165 var_opt_other
[n_opt_other
++] = otype
"x_" name
;
169 for (i =
0; i
< n_opt_other
; i
++) {
170 print " " var_opt_other
[i
] ";";
173 for (i =
0; i
< n_opt_int
; i
++) {
174 print " " var_opt_int
[i
] ";";
177 for (i =
0; i
< n_opt_short
; i
++) {
178 print " " var_opt_short
[i
] ";";
181 for (i =
0; i
< n_opt_char
; i
++) {
182 print " " var_opt_char
[i
] ";";
188 # Target and optimization save/restore/print functions.
189 print "/* Structure to save/restore selected target specific options. */";
190 print "struct GTY(()) cl_target_option";
198 for (i =
0; i
< n_target_save
; i
++) {
199 if (target_save_decl
[i
] ~
"^((un)?signed +)?int +[_a-zA-Z0-9]+$")
200 var_target_int
[n_target_int
++] = target_save_decl
[i
];
202 else if (target_save_decl
[i
] ~
"^((un)?signed +)?short +[_a-zA-Z0-9]+$")
203 var_target_short
[n_target_short
++] = target_save_decl
[i
];
205 else if (target_save_decl
[i
] ~
"^((un)?signed +)?char +[_a-zA-Z0-9]+$")
206 var_target_char
[n_target_char
++] = target_save_decl
[i
];
209 var_target_other
[n_target_other
++] = target_save_decl
[i
];
213 for (i =
0; i
< n_opts
; i
++) {
214 if (flag_set_p
("Save", flags
[i
])) {
215 name = var_name
(flags
[i
])
217 name =
"target_flags";
219 if(name in var_save_seen
)
222 var_save_seen
[name
]++;
223 otype = var_type_struct
(flags
[i
])
224 if (otype ~
"^((un)?signed +)?int *$")
225 var_target_int
[n_target_int
++] = otype
"x_" name
;
227 else if (otype ~
"^((un)?signed +)?short *$")
228 var_target_short
[n_target_short
++] = otype
"x_" name
;
230 else if (otype ~
"^((un)?signed +)?char *$")
231 var_target_char
[n_target_char
++] = otype
"x_" name
;
234 var_target_other
[n_target_other
++] = otype
"x_" name
;
238 var_target_int
[n_target_int
++] =
"int x_target_flags";
241 for (i =
0; i
< n_target_other
; i
++) {
242 print " " var_target_other
[i
] ";";
245 for (i =
0; i
< n_target_int
; i
++) {
246 print " " var_target_int
[i
] ";";
249 for (i =
0; i
< n_target_short
; i
++) {
250 print " " var_target_short
[i
] ";";
253 for (i =
0; i
< n_target_char
; i
++) {
254 print " " var_target_char
[i
] ";";
260 print "/* Save optimization variables into a structure. */"
261 print "extern void cl_optimization_save (struct cl_optimization *);";
263 print "/* Restore optimization variables from a structure. */";
264 print "extern void cl_optimization_restore (struct cl_optimization *);";
266 print "/* Print optimization variables from a structure. */";
267 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
269 print "/* Save selected option variables into a structure. */"
270 print "extern void cl_target_option_save (struct cl_target_option *);";
272 print "/* Restore selected option variables from a structure. */"
273 print "extern void cl_target_option_restore (struct cl_target_option *);";
275 print "/* Print target option variables from a structure. */";
276 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
280 for (i =
0; i
< n_opts
; i
++) {
281 name = opt_args
("Mask", flags
[i
])
282 vname = var_name
(flags
[i
])
285 mask =
"OPTION_MASK_"
287 if (name
!= "" && !flag_set_p
("MaskExists", flags
[i
]))
288 print "#define " mask name
" (1 << " masknum
[vname
]++ ")"
290 for (i =
0; i
< n_extra_masks
; i
++) {
291 print "#define MASK_" extra_masks
[i
] " (1 << " masknum
[""]++ ")"
294 for (var in masknum
) {
295 if (masknum
[var
] > 31) {
297 print "#error too many target masks"
299 print "#error too many masks for " var
304 for (i =
0; i
< n_opts
; i
++) {
305 name = opt_args
("Mask", flags
[i
])
306 vname = var_name
(flags
[i
])
308 mask =
"OPTION_MASK_"
310 vname =
"target_flags"
314 if (name
!= "" && !flag_set_p
("MaskExists", flags
[i
]))
315 print "#define " macro name \
316 " ((" vname
" & " mask name
") != 0)"
318 for (i =
0; i
< n_extra_masks
; i
++) {
319 print "#define TARGET_" extra_masks
[i
] \
320 " ((target_flags & MASK_" extra_masks
[i
] ") != 0)"
324 for (i =
0; i
< n_opts
; i
++) {
325 opt = opt_args
("InverseMask", flags
[i
])
327 vname = var_name
(flags
[i
])
329 mask =
"OPTION_MASK_"
331 vname =
"target_flags"
335 print "#define " macro nth_arg
(1, opt
) \
336 " ((" vname
" & " mask nth_arg
(0, opt
) ") == 0)"
341 for (i =
0; i
< n_langs
; i
++) {
342 macros
[i
] =
"CL_" langs
[i
]
343 gsub( "[^A-Za-z0-9_]", "X", macros
[i
] )
344 s =
substr(" ", length (macros
[i
]))
345 print "#define " macros
[i
] s
" (1 << " i
")"
347 print "#define CL_LANG_ALL ((1 << " n_langs
") - 1)"
350 print "enum opt_code"
353 for (i =
0; i
< n_opts
; i
++)
354 back_chain
[i
] =
"N_OPTS";
357 for (i =
0; i
< n_opts
; i
++) {
358 # Combine the flags of identical switches. Switches
359 # appear many times if they are handled by many front
361 while( i
+ 1 != n_opts
&& opts
[i
] == opts
[i
+ 1] ) {
362 flags
[i
+ 1] = flags
[i
] " " flags
[i
+ 1];
366 len =
length (opts
[i
]);
367 enum = opt_enum
(opts
[i
])
368 enum_string = enum
" = " enum_value
","
370 # Aliases do not get enumeration names.
371 if ((flag_set_p
("Alias.*", flags
[i
]) \
372 && !flag_set_p
("SeparateAlias", flags
[i
])) \
373 || flag_set_p
("Ignore", flags
[i
])) {
374 enum_string =
"/* " enum_string
" */"
377 # If this switch takes joined arguments, back-chain all
378 # subsequent switches to it for which it is a prefix. If
379 # a later switch S is a longer prefix of a switch T, T
380 # will be back-chained to S in a later iteration of this
381 # for() loop, which is what we want.
382 if (flag_set_p
("Joined.*", flags
[i
])) {
383 for (j = i
+ 1; j
< n_opts
; j
++) {
384 if (substr (opts
[j
], 1, len
) != opts
[i
])
386 back_chain
[j
] = enum
;
391 length (enum_string
))
396 hlp =
"N_(\"" help
[i
] "\")";
398 print " " enum_string s
"/* -" opts
[i
] " */"
403 print " OPT_SPECIAL_unknown,"
404 print " OPT_SPECIAL_ignore,"
405 print " OPT_SPECIAL_program_name,"
406 print " OPT_SPECIAL_input_file"
409 print "#endif /* OPTIONS_H */"