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 "#include \"flag-types.h\""
78 print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
79 print "#ifndef GENERATOR_FILE"
80 print "struct gcc_options\n{"
83 for (i =
0; i
< n_extra_vars
; i
++) {
90 sub("^.*[ *]", "", name
)
91 sub("\\[.*\\]$", "", name
)
92 sub("\\[.*\\]$", "", type
)
93 sub(" *" name
"$", "", type
)
94 sub("^.*" name
, "", type_after
)
96 print "#ifdef GENERATOR_FILE"
97 print "extern " orig_var
";"
99 print " " type
" x_" name type_after
";"
100 print "#define " name
" global_options.x_" name
104 for (i =
0; i
< n_opts
; i
++) {
105 if (flag_set_p
("Save", flags
[i
]))
108 name = var_name
(flags
[i
]);
112 if (name in var_seen
)
116 print "#ifdef GENERATOR_FILE"
117 print "extern " var_type
(flags
[i
]) name
";"
119 print " " var_type
(flags
[i
]) "x_" name
";"
120 print "#define " name
" global_options.x_" name
123 for (i =
0; i
< n_opts
; i
++) {
124 name = static_var
(opts
[i
], flags
[i
]);
126 print "#ifndef GENERATOR_FILE"
127 print " " var_type
(flags
[i
]) "x_" name
";"
128 print "#define x_" name
" do_not_use"
132 print "#ifndef GENERATOR_FILE"
134 print "extern struct gcc_options global_options;"
135 print "extern const struct gcc_options global_options_init;"
136 print "extern struct gcc_options global_options_set;"
137 print "#define target_flags_explicit global_options_set.x_target_flags"
142 # All of the optimization switches gathered together so they can be saved and restored.
143 # This will allow attribute((cold)) to turn on space optimization.
145 # Change the type of normal switches from int to unsigned char to save space.
146 # Also, order the structure so that pointer fields occur first, then int
147 # fields, and then char fields to provide the best packing.
149 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
151 print "/* Structure to save/restore optimization and target specific options. */";
152 print "struct GTY(()) cl_optimization";
159 var_opt_char
[0] =
"unsigned char x_optimize";
160 var_opt_char
[1] =
"unsigned char x_optimize_size";
162 for (i =
0; i
< n_opts
; i
++) {
163 if (flag_set_p
("Optimization", flags
[i
])) {
164 name = var_name
(flags
[i
])
168 if(name in var_opt_seen
)
171 var_opt_seen
[name
]++;
172 otype = var_type_struct
(flags
[i
]);
173 if (otype ~
"^((un)?signed +)?int *$")
174 var_opt_int
[n_opt_int
++] = otype
"x_" name
;
176 else if (otype ~
"^((un)?signed +)?short *$")
177 var_opt_short
[n_opt_short
++] = otype
"x_" name
;
179 else if (otype ~
"^((un)?signed +)?char *$")
180 var_opt_char
[n_opt_char
++] = otype
"x_" name
;
183 var_opt_other
[n_opt_other
++] = otype
"x_" name
;
187 for (i =
0; i
< n_opt_other
; i
++) {
188 print " " var_opt_other
[i
] ";";
191 for (i =
0; i
< n_opt_int
; i
++) {
192 print " " var_opt_int
[i
] ";";
195 for (i =
0; i
< n_opt_short
; i
++) {
196 print " " var_opt_short
[i
] ";";
199 for (i =
0; i
< n_opt_char
; i
++) {
200 print " " var_opt_char
[i
] ";";
206 # Target and optimization save/restore/print functions.
207 print "/* Structure to save/restore selected target specific options. */";
208 print "struct GTY(()) cl_target_option";
216 for (i =
0; i
< n_target_save
; i
++) {
217 if (target_save_decl
[i
] ~
"^((un)?signed +)?int +[_" alnum
"]+$")
218 var_target_int
[n_target_int
++] = target_save_decl
[i
];
220 else if (target_save_decl
[i
] ~
"^((un)?signed +)?short +[_" alnum
"]+$")
221 var_target_short
[n_target_short
++] = target_save_decl
[i
];
223 else if (target_save_decl
[i
] ~
"^((un)?signed +)?char +[_ " alnum
"]+$")
224 var_target_char
[n_target_char
++] = target_save_decl
[i
];
227 var_target_other
[n_target_other
++] = target_save_decl
[i
];
231 for (i =
0; i
< n_opts
; i
++) {
232 if (flag_set_p
("Save", flags
[i
])) {
233 name = var_name
(flags
[i
])
235 name =
"target_flags";
237 if(name in var_save_seen
)
240 var_save_seen
[name
]++;
241 otype = var_type_struct
(flags
[i
])
242 if (otype ~
"^((un)?signed +)?int *$")
243 var_target_int
[n_target_int
++] = otype
"x_" name
;
245 else if (otype ~
"^((un)?signed +)?short *$")
246 var_target_short
[n_target_short
++] = otype
"x_" name
;
248 else if (otype ~
"^((un)?signed +)?char *$")
249 var_target_char
[n_target_char
++] = otype
"x_" name
;
252 var_target_other
[n_target_other
++] = otype
"x_" name
;
256 var_target_int
[n_target_int
++] =
"int x_target_flags";
259 for (i =
0; i
< n_target_other
; i
++) {
260 print " " var_target_other
[i
] ";";
263 for (i =
0; i
< n_target_int
; i
++) {
264 print " " var_target_int
[i
] ";";
267 for (i =
0; i
< n_target_short
; i
++) {
268 print " " var_target_short
[i
] ";";
271 for (i =
0; i
< n_target_char
; i
++) {
272 print " " var_target_char
[i
] ";";
278 print "/* Save optimization variables into a structure. */"
279 print "extern void cl_optimization_save (struct cl_optimization *, struct gcc_options *);";
281 print "/* Restore optimization variables from a structure. */";
282 print "extern void cl_optimization_restore (struct gcc_options *, struct cl_optimization *);";
284 print "/* Print optimization variables from a structure. */";
285 print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
287 print "/* Save selected option variables into a structure. */"
288 print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *);";
290 print "/* Restore selected option variables from a structure. */"
291 print "extern void cl_target_option_restore (struct gcc_options *, struct cl_target_option *);";
293 print "/* Print target option variables from a structure. */";
294 print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
298 for (i =
0; i
< n_opts
; i
++) {
299 name = opt_args
("Mask", flags
[i
])
300 vname = var_name
(flags
[i
])
303 mask =
"OPTION_MASK_"
305 if (name
!= "" && !flag_set_p
("MaskExists", flags
[i
]))
306 print "#define " mask name
" (1 << " masknum
[vname
]++ ")"
308 for (i =
0; i
< n_extra_masks
; i
++) {
309 print "#define MASK_" extra_masks
[i
] " (1 << " masknum
[""]++ ")"
312 for (var in masknum
) {
313 if (masknum
[var
] > 31) {
315 print "#error too many target masks"
317 print "#error too many masks for " var
322 for (i =
0; i
< n_opts
; i
++) {
323 name = opt_args
("Mask", flags
[i
])
324 vname = var_name
(flags
[i
])
326 mask =
"OPTION_MASK_"
328 vname =
"target_flags"
332 if (name
!= "" && !flag_set_p
("MaskExists", flags
[i
]))
333 print "#define " macro name \
334 " ((" vname
" & " mask name
") != 0)"
336 for (i =
0; i
< n_extra_masks
; i
++) {
337 print "#define TARGET_" extra_masks
[i
] \
338 " ((target_flags & MASK_" extra_masks
[i
] ") != 0)"
342 for (i =
0; i
< n_opts
; i
++) {
343 opt = opt_args
("InverseMask", flags
[i
])
345 vname = var_name
(flags
[i
])
347 mask =
"OPTION_MASK_"
349 vname =
"target_flags"
353 print "#define " macro nth_arg
(1, opt
) \
354 " ((" vname
" & " mask nth_arg
(0, opt
) ") == 0)"
359 for (i =
0; i
< n_langs
; i
++) {
360 macros
[i
] =
"CL_" langs
[i
]
361 gsub( "[^" alnum
"_]", "X", macros
[i
] )
362 s =
substr(" ", length (macros
[i
]))
363 print "#define " macros
[i
] s
" (1 << " i
")"
365 print "#define CL_LANG_ALL ((1 << " n_langs
") - 1)"
368 print "enum opt_code"
371 for (i =
0; i
< n_opts
; i
++)
372 back_chain
[i
] =
"N_OPTS";
375 for (i =
0; i
< n_opts
; i
++) {
376 # Combine the flags of identical switches. Switches
377 # appear many times if they are handled by many front
379 while( i
+ 1 != n_opts
&& opts
[i
] == opts
[i
+ 1] ) {
380 flags
[i
+ 1] = flags
[i
] " " flags
[i
+ 1];
384 len =
length (opts
[i
]);
385 enum = opt_enum
(opts
[i
])
386 enum_string = enum
" = " enum_value
","
388 # Aliases do not get enumeration names.
389 if ((flag_set_p
("Alias.*", flags
[i
]) \
390 && !flag_set_p
("SeparateAlias", flags
[i
])) \
391 || flag_set_p
("Ignore", flags
[i
])) {
392 enum_string =
"/* " enum_string
" */"
395 # If this switch takes joined arguments, back-chain all
396 # subsequent switches to it for which it is a prefix. If
397 # a later switch S is a longer prefix of a switch T, T
398 # will be back-chained to S in a later iteration of this
399 # for() loop, which is what we want.
400 if (flag_set_p
("Joined.*", flags
[i
])) {
401 for (j = i
+ 1; j
< n_opts
; j
++) {
402 if (substr (opts
[j
], 1, len
) != opts
[i
])
404 back_chain
[j
] = enum
;
409 length (enum_string
))
414 hlp =
"N_(\"" help
[i
] "\")";
416 print " " enum_string s
"/* -" opts
[i
] " */"
421 print " OPT_SPECIAL_unknown,"
422 print " OPT_SPECIAL_ignore,"
423 print " OPT_SPECIAL_program_name,"
424 print " OPT_SPECIAL_input_file"
427 print "#endif /* OPTIONS_H */"