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Commit | Line | Data |
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fef3106c | 1 | ; Options for the C, ObjC, C++ and ObjC++ front ends. |
818ab71a | 2 | ; Copyright (C) 2003-2016 Free Software Foundation, Inc. |
fef3106c NB |
3 | ; |
4 | ; This file is part of GCC. | |
5 | ; | |
6 | ; GCC is free software; you can redistribute it and/or modify it under | |
7 | ; the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 8 | ; Software Foundation; either version 3, or (at your option) any later |
fef3106c | 9 | ; version. |
c22cacf3 | 10 | ; |
fef3106c NB |
11 | ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | ; WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | ; for more details. | |
c22cacf3 | 15 | ; |
fef3106c | 16 | ; You should have received a copy of the GNU General Public License |
9dcd6f09 NC |
17 | ; along with GCC; see the file COPYING3. If not see |
18 | ; <http://www.gnu.org/licenses/>. | |
fef3106c | 19 | |
8abb6b22 | 20 | ; See the GCC internals manual for a description of this file's format. |
fef3106c | 21 | |
fef3106c NB |
22 | ; Please try to keep this file in ASCII collating order. |
23 | ||
be43ab4e NB |
24 | Language |
25 | C | |
26 | ||
27 | Language | |
28 | ObjC | |
29 | ||
30 | Language | |
31 | C++ | |
32 | ||
33 | Language | |
34 | ObjC++ | |
35 | ||
e200444e JM |
36 | -all-warnings |
37 | C ObjC C++ ObjC++ Warning Alias(Wall) | |
38 | ||
39 | -ansi | |
40 | C ObjC C++ ObjC++ Alias(ansi) | |
41 | ||
42 | -assert | |
43 | C ObjC C++ ObjC++ Separate Alias(A) MissingArgError(assertion missing after %qs) | |
44 | ||
45 | -assert= | |
46 | C ObjC C++ ObjC++ Joined Alias(A) MissingArgError(assertion missing after %qs) | |
47 | ||
48 | -comments | |
49 | C ObjC C++ ObjC++ Alias(C) | |
50 | ||
51 | -comments-in-macros | |
52 | C ObjC C++ ObjC++ Alias(CC) | |
53 | ||
54 | -define-macro | |
55 | C ObjC C++ ObjC++ Separate Alias(D) MissingArgError(macro name missing after %qs) | |
56 | ||
57 | -define-macro= | |
58 | C ObjC C++ ObjC++ Joined Alias(D) MissingArgError(macro name missing after %qs) | |
59 | ||
60 | -dependencies | |
61 | C ObjC C++ ObjC++ Alias(M) | |
62 | ||
63 | -dump | |
64 | C ObjC C++ ObjC++ Separate Alias(d) | |
65 | ||
66 | -dump= | |
67 | C ObjC C++ ObjC++ Joined Alias(d) | |
68 | ||
69 | -imacros | |
70 | C ObjC C++ ObjC++ Separate Alias(imacros) MissingArgError(missing filename after %qs) | |
71 | ||
72 | -imacros= | |
73 | C ObjC C++ ObjC++ Joined Alias(imacros) MissingArgError(missing filename after %qs) | |
74 | ||
75 | -include | |
76 | C ObjC C++ ObjC++ Separate Alias(include) MissingArgError(missing filename after %qs) | |
77 | ||
78 | -include= | |
79 | C ObjC C++ ObjC++ Joined Alias(include) MissingArgError(missing filename after %qs) | |
80 | ||
81 | -include-barrier | |
82 | C ObjC C++ ObjC++ Alias(I, -) | |
83 | ||
84 | -include-directory | |
85 | C ObjC C++ ObjC++ Separate Alias(I) MissingArgError(missing path after %qs) | |
86 | ||
87 | -include-directory= | |
88 | C ObjC C++ ObjC++ Joined Alias(I) MissingArgError(missing path after %qs) | |
89 | ||
90 | -include-directory-after | |
91 | C ObjC C++ ObjC++ Separate Alias(idirafter) MissingArgError(missing path after %qs) | |
92 | ||
93 | -include-directory-after= | |
94 | C ObjC C++ ObjC++ Joined Alias(idirafter) MissingArgError(missing path after %qs) | |
95 | ||
96 | -include-prefix | |
97 | C ObjC C++ ObjC++ Separate Alias(iprefix) | |
98 | ||
99 | -include-prefix= | |
100 | C ObjC C++ ObjC++ JoinedOrMissing Alias(iprefix) | |
101 | ||
102 | -include-with-prefix | |
103 | C ObjC C++ ObjC++ Separate Alias(iwithprefix) | |
104 | ||
105 | -include-with-prefix= | |
106 | C ObjC C++ ObjC++ JoinedOrMissing Alias(iwithprefix) | |
107 | ||
108 | -include-with-prefix-after | |
109 | C ObjC C++ ObjC++ Separate Alias(iwithprefix) | |
110 | ||
111 | -include-with-prefix-after= | |
112 | C ObjC C++ ObjC++ JoinedOrMissing Alias(iwithprefix) | |
113 | ||
114 | -include-with-prefix-before | |
115 | C ObjC C++ ObjC++ Separate Alias(iwithprefixbefore) | |
116 | ||
117 | -include-with-prefix-before= | |
118 | C ObjC C++ ObjC++ JoinedOrMissing Alias(iwithprefixbefore) | |
119 | ||
120 | -no-integrated-cpp | |
121 | Driver Alias(no-integrated-cpp) | |
122 | ||
123 | -no-line-commands | |
124 | C ObjC C++ ObjC++ Alias(P) | |
125 | ||
126 | -no-standard-includes | |
127 | C ObjC C++ ObjC++ Alias(nostdinc) | |
128 | ||
129 | -no-warnings | |
130 | C ObjC C++ ObjC++ Alias(w) | |
131 | ||
132 | -output | |
133 | C ObjC C++ ObjC++ Separate Alias(o) | |
134 | ||
135 | -output= | |
136 | C ObjC C++ ObjC++ Joined Alias(o) | |
137 | ||
fef3106c NB |
138 | -output-pch= |
139 | C ObjC C++ ObjC++ Joined Separate | |
140 | ||
e200444e JM |
141 | -pedantic |
142 | C ObjC C++ ObjC++ Alias(pedantic) | |
143 | ||
e200444e JM |
144 | -preprocess |
145 | C ObjC C++ ObjC++ Undocumented Alias(E) | |
146 | ||
147 | -print-missing-file-dependencies | |
148 | C ObjC C++ ObjC++ Alias(MG) | |
149 | ||
150 | -trace-includes | |
151 | C ObjC C++ ObjC++ Alias(H) | |
152 | ||
153 | -traditional | |
154 | Driver Alias(traditional) | |
155 | ||
156 | -traditional-cpp | |
157 | C ObjC C++ ObjC++ Alias(traditional-cpp) | |
158 | ||
159 | -trigraphs | |
160 | C ObjC C++ ObjC++ Alias(trigraphs) | |
161 | ||
162 | -undefine-macro | |
163 | C ObjC C++ ObjC++ Separate Alias(U) MissingArgError(macro name missing after %qs) | |
164 | ||
165 | -undefine-macro= | |
166 | C ObjC C++ ObjC++ Joined Alias(U) MissingArgError(macro name missing after %qs) | |
167 | ||
168 | -user-dependencies | |
169 | C ObjC C++ ObjC++ Alias(MM) | |
170 | ||
171 | -verbose | |
172 | Common C ObjC C++ ObjC++ Alias(v) | |
173 | ||
174 | -write-dependencies | |
175 | C ObjC C++ ObjC++ NoDriverArg Separate Alias(MD) MissingArgError(missing filename after %qs) | |
176 | ||
177 | -write-user-dependencies | |
178 | C ObjC C++ ObjC++ NoDriverArg Separate Alias(MMD) MissingArgError(missing filename after %qs) | |
179 | ||
fef3106c | 180 | A |
61ff2bdc | 181 | C ObjC C++ ObjC++ Joined Separate MissingArgError(assertion missing after %qs) |
a7b2e184 | 182 | -A<question>=<answer> Assert the <answer> to <question>. Putting '-' before <question> disables the <answer> to <question>. |
fef3106c NB |
183 | |
184 | C | |
185 | C ObjC C++ ObjC++ | |
a7b2e184 | 186 | Do not discard comments. |
fef3106c NB |
187 | |
188 | CC | |
189 | C ObjC C++ ObjC++ | |
a7b2e184 | 190 | Do not discard comments in macro expansions. |
fef3106c NB |
191 | |
192 | D | |
61ff2bdc | 193 | C ObjC C++ ObjC++ Joined Separate MissingArgError(macro name missing after %qs) |
a7b2e184 | 194 | -D<macro>[=<val>] Define a <macro> with <val> as its value. If just <macro> is given, <val> is taken to be 1. |
fef3106c NB |
195 | |
196 | E | |
5498f011 | 197 | C ObjC C++ ObjC++ Undocumented Var(flag_preprocess_only) |
fef3106c | 198 | |
94d1613b | 199 | F |
bd837408 | 200 | Driver C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
a7b2e184 | 201 | -F <dir> Add <dir> to the end of the main framework include path. |
94d1613b | 202 | |
1ee62b92 PG |
203 | fgimple |
204 | C Var(flag_gimple) Init(0) | |
205 | Enable parsing GIMPLE. | |
206 | ||
fef3106c NB |
207 | H |
208 | C ObjC C++ ObjC++ | |
a7b2e184 | 209 | Print the name of header files as they are used. |
fef3106c NB |
210 | |
211 | I | |
61ff2bdc | 212 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
a7b2e184 | 213 | -I <dir> Add <dir> to the end of the main include path. |
fef3106c NB |
214 | |
215 | M | |
216 | C ObjC C++ ObjC++ | |
a7b2e184 | 217 | Generate make dependencies. |
fef3106c | 218 | |
c878765b JM |
219 | MD |
220 | C ObjC C++ ObjC++ NoDriverArg Separate MissingArgError(missing filename after %qs) | |
a7b2e184 | 221 | Generate make dependencies and compile. |
fef3106c NB |
222 | |
223 | MF | |
61ff2bdc | 224 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
a7b2e184 | 225 | -MF <file> Write dependency output to the given file. |
fef3106c NB |
226 | |
227 | MG | |
228 | C ObjC C++ ObjC++ | |
a7b2e184 | 229 | Treat missing header files as generated files. |
fef3106c NB |
230 | |
231 | MM | |
232 | C ObjC C++ ObjC++ | |
a7b2e184 | 233 | Like -M but ignore system header files. |
fef3106c | 234 | |
c878765b JM |
235 | MMD |
236 | C ObjC C++ ObjC++ NoDriverArg Separate MissingArgError(missing filename after %qs) | |
a7b2e184 | 237 | Like -MD but ignore system header files. |
fef3106c NB |
238 | |
239 | MP | |
240 | C ObjC C++ ObjC++ | |
a7b2e184 | 241 | Generate phony targets for all headers. |
fef3106c NB |
242 | |
243 | MQ | |
61ff2bdc | 244 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing makefile target after %qs) |
a7b2e184 | 245 | -MQ <target> Add a MAKE-quoted target. |
fef3106c NB |
246 | |
247 | MT | |
61ff2bdc | 248 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing makefile target after %qs) |
a7b2e184 | 249 | -MT <target> Add an unquoted target. |
fef3106c NB |
250 | |
251 | P | |
252 | C ObjC C++ ObjC++ | |
a7b2e184 | 253 | Do not generate #line directives. |
fef3106c NB |
254 | |
255 | U | |
61ff2bdc | 256 | C ObjC C++ ObjC++ Joined Separate MissingArgError(macro name missing after %qs) |
a7b2e184 | 257 | -U<macro> Undefine <macro>. |
fef3106c NB |
258 | |
259 | Wabi | |
d7f09764 | 260 | C ObjC C++ ObjC++ LTO Var(warn_abi) Warning |
a7b2e184 | 261 | Warn about things that will change when compiling with an ABI-compliant compiler. |
fef3106c | 262 | |
62984918 JM |
263 | Wabi= |
264 | C ObjC C++ ObjC++ LTO Joined RejectNegative UInteger Warning | |
a7b2e184 | 265 | Warn about things that change between the current -fabi-version and the specified version. |
62984918 | 266 | |
7dbb85a7 JM |
267 | Wabi-tag |
268 | C++ ObjC++ Var(warn_abi_tag) Warning | |
a7b2e184 | 269 | Warn if a subobject has an abi_tag attribute that the complete object type does not have. |
7dbb85a7 | 270 | |
bce08d50 | 271 | Wpsabi |
50b15873 | 272 | C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Warning Undocumented LangEnabledBy(C ObjC C++ ObjC++,Wabi) |
bce08d50 | 273 | |
c116cd05 | 274 | Waddress |
4a0ae68e | 275 | C ObjC C++ ObjC++ Var(warn_address) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 276 | Warn about suspicious uses of memory addresses. |
c116cd05 | 277 | |
af63ba4b JM |
278 | Enum |
279 | Name(warn_aligned_new_level) Type(int) UnknownError(argument %qs to %<-Waligned-new%> not recognized) | |
280 | ||
281 | EnumValue | |
282 | Enum(warn_aligned_new_level) String(none) Value(0) | |
283 | ||
284 | EnumValue | |
285 | Enum(warn_aligned_new_level) String(global) Value(1) | |
286 | ||
287 | EnumValue | |
288 | Enum(warn_aligned_new_level) String(all) Value(2) | |
289 | ||
290 | Waligned-new | |
291 | C++ ObjC++ Alias(Waligned-new=,global,none) | |
292 | Warn about 'new' of type with extended alignment without -faligned-new. | |
293 | ||
294 | Waligned-new= | |
2e1c20b1 | 295 | C++ ObjC++ Var(warn_aligned_new) Enum(warn_aligned_new_level) Joined RejectNegative Warning LangEnabledBy(C++ ObjC++,Wall,1,0) |
af63ba4b JM |
296 | -Waligned-new=all Warn even if 'new' uses a class member allocation function. |
297 | ||
fef3106c | 298 | Wall |
c662432e | 299 | C ObjC C++ ObjC++ Warning |
a7b2e184 | 300 | Enable most warning messages. |
fef3106c | 301 | |
adc577c5 AH |
302 | Walloca |
303 | C ObjC C++ ObjC++ Var(warn_alloca) Warning | |
304 | Warn on any use of alloca. | |
305 | ||
306 | Walloca-larger-than= | |
307 | C ObjC C++ ObjC++ Var(warn_alloca_limit) Warning Joined RejectNegative UInteger | |
308 | -Walloca-larger-than=<number> Warn on unbounded uses of | |
309 | alloca, and on bounded uses of alloca whose bound can be larger than | |
310 | <number> bytes. | |
311 | ||
34a180a6 MLI |
312 | Warray-bounds |
313 | LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
314 | ; in common.opt | |
315 | ||
de1b5c17 MU |
316 | Warray-bounds= |
317 | LangEnabledBy(C ObjC C++ ObjC++,Wall,1,0) | |
318 | ; in common.opt | |
319 | ||
6e955430 | 320 | Wassign-intercept |
c662432e | 321 | ObjC ObjC++ Var(warn_assign_intercept) Warning |
a7b2e184 | 322 | Warn whenever an Objective-C assignment is being intercepted by the garbage collector. |
6e955430 | 323 | |
fef3106c | 324 | Wbad-function-cast |
c662432e | 325 | C ObjC Var(warn_bad_function_cast) Warning |
a7b2e184 | 326 | Warn about casting functions to incompatible types. |
fef3106c | 327 | |
04159acf MP |
328 | Wbool-compare |
329 | C ObjC C++ ObjC++ Var(warn_bool_compare) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
a7b2e184 | 330 | Warn about boolean expression compared with an integer value different from true/false. |
04159acf | 331 | |
9a2300e9 MP |
332 | Wbool-operation |
333 | C ObjC C++ ObjC++ Var(warn_bool_op) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
334 | Warn about certain operations on boolean expressions. | |
335 | ||
8423e57c MS |
336 | Wframe-address |
337 | C ObjC C++ ObjC++ Var(warn_frame_address) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
a7b2e184 | 338 | Warn when __builtin_frame_address or __builtin_return_address is used unsafely. |
8423e57c | 339 | |
48330c93 BE |
340 | Wbuiltin-declaration-mismatch |
341 | C ObjC C++ ObjC++ Var(warn_builtin_declaraion_mismatch) Init(1) Warning | |
342 | Warn when a built-in function is declared with the wrong signature. | |
343 | ||
c047ce93 | 344 | Wbuiltin-macro-redefined |
b559c810 | 345 | C ObjC C++ ObjC++ CPP(warn_builtin_macro_redefined) CppReason(CPP_W_BUILTIN_MACRO_REDEFINED) Var(cpp_warn_builtin_macro_redefined) Init(1) Warning |
a7b2e184 | 346 | Warn when a built-in preprocessor macro is undefined or redefined. |
c047ce93 | 347 | |
f3bede71 | 348 | Wc90-c99-compat |
b559c810 | 349 | C ObjC CPP(cpp_warn_c90_c99_compat) CppReason(CPP_W_C90_C99_COMPAT) Var(warn_c90_c99_compat) Init(-1) Warning |
a7b2e184 | 350 | Warn about features not present in ISO C90, but present in ISO C99. |
f3bede71 | 351 | |
35aff4fb MP |
352 | Wc99-c11-compat |
353 | C ObjC Var(warn_c99_c11_compat) Init(-1) Warning | |
a7b2e184 | 354 | Warn about features not present in ISO C99, but present in ISO C11. |
35aff4fb | 355 | |
b7e20b53 | 356 | Wc++-compat |
b559c810 | 357 | C ObjC Var(warn_cxx_compat) CPP(warn_cxx_operator_names) CppReason(CPP_W_CXX_OPERATOR_NAMES) Init(0) Warning |
a7b2e184 | 358 | Warn about C constructs that are not in the common subset of C and C++. |
b7e20b53 | 359 | |
e1f1ee86 | 360 | Wc++0x-compat |
765189ff | 361 | C++ ObjC++ Warning Alias(Wc++11-compat) Undocumented |
97e3ad20 JM |
362 | |
363 | Wc++11-compat | |
765189ff | 364 | C++ ObjC++ Var(warn_cxx11_compat) Warning LangEnabledBy(C++ ObjC++,Wall) Init(0) CPP(cpp_warn_cxx11_compat) CppReason(CPP_W_CXX11_COMPAT) |
a7b2e184 | 365 | Warn about C++ constructs whose meaning differs between ISO C++ 1998 and ISO C++ 2011. |
b7e20b53 | 366 | |
20b06add JM |
367 | Wc++14-compat |
368 | C++ ObjC++ Var(warn_cxx14_compat) Warning LangEnabledBy(C++ ObjC++,Wall) | |
a7b2e184 | 369 | Warn about C++ constructs whose meaning differs between ISO C++ 2011 and ISO C++ 2014. |
20b06add | 370 | |
51dc6603 JM |
371 | Wc++1z-compat |
372 | C++ ObjC++ Var(warn_cxx1z_compat) Warning LangEnabledBy(C++ ObjC++,Wall) | |
373 | Warn about C++ constructs whose meaning differs between ISO C++ 2014 and (forthcoming) ISO C++ 201z(7?). | |
374 | ||
375 | Wc++17-compat | |
376 | C++ ObjC++ Warning Alias(Wc++1z-compat) Undocumented | |
377 | ||
fef3106c | 378 | Wcast-qual |
c662432e | 379 | C ObjC C++ ObjC++ Var(warn_cast_qual) Warning |
a7b2e184 | 380 | Warn about casts which discard qualifiers. |
fef3106c NB |
381 | |
382 | Wchar-subscripts | |
4a0ae68e | 383 | C ObjC C++ ObjC++ Var(warn_char_subscripts) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 384 | Warn about subscripts whose type is \"char\". |
fef3106c | 385 | |
d5e254e1 | 386 | Wchkp |
c2d89095 | 387 | C ObjC C++ ObjC++ Var(warn_chkp) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 388 | Warn about memory access errors found by Pointer Bounds Checker. |
d5e254e1 | 389 | |
2b001724 | 390 | Wclobbered |
95744782 | 391 | C ObjC C++ ObjC++ Var(warn_clobbered) Warning EnabledBy(Wextra) |
a7b2e184 | 392 | Warn about variables that might be changed by \"longjmp\" or \"vfork\". |
2b001724 | 393 | |
fef3106c | 394 | Wcomment |
b559c810 | 395 | C ObjC C++ ObjC++ CPP(warn_comments) CppReason(CPP_W_COMMENTS) Var(cpp_warn_comment) Init(0) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 396 | Warn about possibly nested block comments, and C++ comments spanning more than one physical line. |
fef3106c NB |
397 | |
398 | Wcomments | |
5de8299c | 399 | C ObjC C++ ObjC++ Warning Alias(Wcomment) |
a7b2e184 | 400 | Synonym for -Wcomment. |
fef3106c | 401 | |
dfeadaa0 PC |
402 | Wconditionally-supported |
403 | C++ ObjC++ Var(warn_conditionally_supported) Warning | |
a7b2e184 | 404 | Warn for conditionally-supported constructs. |
dfeadaa0 | 405 | |
fef3106c | 406 | Wconversion |
c662432e | 407 | C ObjC C++ ObjC++ Var(warn_conversion) Warning |
a7b2e184 | 408 | Warn for implicit type conversions that may change a value. |
fef3106c | 409 | |
17251338 MLI |
410 | Wconversion-null |
411 | C++ ObjC++ Var(warn_conversion_null) Init(1) Warning | |
a7b2e184 | 412 | Warn for converting NULL from/to a non-pointer type. |
17251338 | 413 | |
b559c810 MLI |
414 | Wcpp |
415 | C ObjC C++ ObjC++ CppReason(CPP_W_WARNING_DIRECTIVE) | |
416 | ; Documented in common.opt | |
417 | ||
fef3106c | 418 | Wctor-dtor-privacy |
c662432e | 419 | C++ ObjC++ Var(warn_ctor_dtor_privacy) Warning |
a7b2e184 | 420 | Warn when all constructors and destructors are private. |
deef7113 MP |
421 | |
422 | Wdangling-else | |
423 | C ObjC C++ ObjC++ Var(warn_dangling_else) Warning LangEnabledBy(C ObjC C++ ObjC++,Wparentheses) | |
424 | Warn about dangling else. | |
fef3106c | 425 | |
b559c810 MLI |
426 | Wdate-time |
427 | C ObjC C++ ObjC++ CPP(warn_date_time) CppReason(CPP_W_DATE_TIME) Var(cpp_warn_date_time) Init(0) Warning | |
a7b2e184 | 428 | Warn about __TIME__, __DATE__ and __TIMESTAMP__ usage. |
b559c810 | 429 | |
85617eba | 430 | Wdeclaration-after-statement |
177cce46 | 431 | C ObjC Var(warn_declaration_after_statement) Init(-1) Warning |
a7b2e184 | 432 | Warn when a declaration is found after a statement. |
85617eba | 433 | |
c9b0866a PC |
434 | Wdelete-incomplete |
435 | C++ ObjC++ Var(warn_delete_incomplete) Init(1) Warning | |
a7b2e184 | 436 | Warn when deleting a pointer to incomplete type. |
c9b0866a | 437 | |
014ab419 | 438 | Wdelete-non-virtual-dtor |
27e51192 | 439 | C++ ObjC++ Var(warn_delnonvdtor) Warning LangEnabledBy(C++ ObjC++,Wall || Weffc++) |
a7b2e184 | 440 | Warn about deleting polymorphic objects with non-virtual destructors. |
014ab419 | 441 | |
fef3106c | 442 | Wdeprecated |
b559c810 | 443 | C C++ ObjC ObjC++ CPP(cpp_warn_deprecated) CppReason(CPP_W_DEPRECATED) Var(warn_deprecated) Init(1) Warning |
a7b2e184 | 444 | Warn if a deprecated compiler feature, class, method, or field is used. |
fef3106c | 445 | |
976d5a22 TT |
446 | Wdesignated-init |
447 | C ObjC Var(warn_designated_init) Init(1) Warning | |
a7b2e184 | 448 | Warn about positional initialization of structs requiring designated initializers. |
976d5a22 | 449 | |
768952be MU |
450 | Wdiscarded-array-qualifiers |
451 | C ObjC Var(warn_discarded_array_qualifiers) Init(1) Warning | |
a7b2e184 | 452 | Warn if qualifiers on arrays which are pointer targets are discarded. |
768952be | 453 | |
d00887e8 MP |
454 | Wdiscarded-qualifiers |
455 | C ObjC Var(warn_discarded_qualifiers) Init(1) Warning | |
a7b2e184 | 456 | Warn if type qualifiers on pointers are discarded. |
d00887e8 | 457 | |
fef3106c | 458 | Wdiv-by-zero |
2cbac420 | 459 | C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warning |
a7b2e184 | 460 | Warn about compile-time integer division by zero. |
fef3106c | 461 | |
3e3b8d63 | 462 | Wduplicated-cond |
12651878 | 463 | C ObjC C++ ObjC++ Var(warn_duplicated_cond) Init(0) Warning |
a7b2e184 | 464 | Warn about duplicated conditions in an if-else-if chain. |
3e3b8d63 | 465 | |
fef3106c | 466 | Weffc++ |
c662432e | 467 | C++ ObjC++ Var(warn_ecpp) Warning |
a7b2e184 | 468 | Warn about violations of Effective C++ style rules. |
fef3106c | 469 | |
b3b433c5 | 470 | Wempty-body |
95744782 | 471 | C ObjC C++ ObjC++ Var(warn_empty_body) Warning EnabledBy(Wextra) |
a7b2e184 | 472 | Warn about an empty body in an if or else statement. |
b3b433c5 | 473 | |
fef3106c | 474 | Wendif-labels |
b559c810 | 475 | C ObjC C++ ObjC++ CPP(warn_endif_labels) CppReason(CPP_W_ENDIF_LABELS) Var(cpp_warn_endif_labels) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wpedantic) |
a7b2e184 | 476 | Warn about stray tokens after #elif and #endif. |
fef3106c | 477 | |
a3299096 | 478 | Wenum-compare |
27e51192 | 479 | C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning LangEnabledBy(C ObjC,Wall || Wc++-compat) |
a7b2e184 | 480 | Warn about comparison of different enum types. |
a3299096 | 481 | |
fef3106c NB |
482 | Werror |
483 | C ObjC C++ ObjC++ | |
72de27ea | 484 | ; Documented in common.opt |
fef3106c NB |
485 | |
486 | Werror-implicit-function-declaration | |
5de8299c | 487 | C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration) |
a7b2e184 | 488 | This switch is deprecated; use -Werror=implicit-function-declaration instead. |
fef3106c | 489 | |
70f6d5e1 JJ |
490 | Wextra |
491 | C ObjC C++ ObjC++ Warning | |
492 | ; in common.opt | |
493 | ||
49b0aa18 | 494 | Wfloat-conversion |
63bbf46d | 495 | C ObjC C++ ObjC++ Var(warn_float_conversion) Warning LangEnabledBy(C ObjC C++ ObjC++,Wconversion) |
a7b2e184 | 496 | Warn for implicit type conversions that cause loss of floating point precision. |
49b0aa18 | 497 | |
fef3106c | 498 | Wfloat-equal |
c662432e | 499 | C ObjC C++ ObjC++ Var(warn_float_equal) Warning |
a7b2e184 | 500 | Warn if testing floating point numbers for equality. |
fef3106c NB |
501 | |
502 | Wformat | |
7332899a | 503 | C ObjC C++ ObjC++ Warning Alias(Wformat=, 1, 0) |
a7b2e184 | 504 | Warn about printf/scanf/strftime/strfmon format string anomalies. |
fef3106c | 505 | |
7332899a MLI |
506 | Wformat-contains-nul |
507 | C ObjC C++ ObjC++ Var(warn_format_contains_nul) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 1, 0) | |
a7b2e184 | 508 | Warn about format strings that contain NUL bytes. |
7332899a | 509 | |
fef3106c | 510 | Wformat-extra-args |
7332899a | 511 | C ObjC C++ ObjC++ Var(warn_format_extra_args) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 1, 0) |
a7b2e184 | 512 | Warn if passing too many arguments to a function for its format string. |
fef3106c | 513 | |
88d0c3f0 MS |
514 | Wformat-length |
515 | C ObjC C++ ObjC++ Warning Alias(Wformat-length=, 1, 0) | |
516 | Warn about function calls with format strings that write past the end | |
517 | of the destination region. Same as -Wformat-length=1. | |
518 | ||
fef3106c | 519 | Wformat-nonliteral |
7332899a | 520 | C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0) |
a7b2e184 | 521 | Warn about format strings that are not literals. |
fef3106c NB |
522 | |
523 | Wformat-security | |
7332899a | 524 | C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0) |
a7b2e184 | 525 | Warn about possible security problems with format functions. |
fef3106c | 526 | |
cbbd2b1c | 527 | Wformat-signedness |
7631f0e2 | 528 | C ObjC C++ ObjC++ Var(warn_format_signedness) Warning |
a7b2e184 | 529 | Warn about sign differences with format functions. |
cbbd2b1c | 530 | |
fef3106c | 531 | Wformat-y2k |
7332899a | 532 | C ObjC C++ ObjC++ Var(warn_format_y2k) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=,warn_format >= 2, 0) |
a7b2e184 | 533 | Warn about strftime formats yielding 2-digit years. |
fef3106c NB |
534 | |
535 | Wformat-zero-length | |
7332899a | 536 | C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=,warn_format >= 1, 0) |
a7b2e184 | 537 | Warn about zero-length formats. |
fef3106c NB |
538 | |
539 | Wformat= | |
7332899a | 540 | C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) |
a7b2e184 | 541 | Warn about printf/scanf/strftime/strfmon format string anomalies. |
fef3106c | 542 | |
88d0c3f0 MS |
543 | Wformat-length= |
544 | C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format_length) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 1, 0) | |
545 | Warn about function calls with format strings that write past the end | |
546 | of the destination region. | |
547 | ||
5db2e9ca | 548 | Wignored-qualifiers |
95744782 | 549 | C C++ Var(warn_ignored_qualifiers) Warning EnabledBy(Wextra) |
5db2e9ca DK |
550 | Warn whenever type qualifiers are ignored. |
551 | ||
fbdb6baf MP |
552 | Wignored-attributes |
553 | C C++ Var(warn_ignored_attributes) Init(1) Warning | |
554 | Warn whenever attributes are ignored. | |
555 | ||
d5c3d343 MP |
556 | Wincompatible-pointer-types |
557 | C ObjC Var(warn_incompatible_pointer_types) Init(1) Warning | |
a7b2e184 | 558 | Warn when there is a conversion between pointers that have incompatible types. |
d5c3d343 | 559 | |
3390f9c9 | 560 | Winit-self |
0ccb505d | 561 | C ObjC C++ ObjC++ Var(warn_init_self) Warning LangEnabledBy(C++ ObjC++,Wall) |
a7b2e184 | 562 | Warn about variables which are initialized to themselves. |
3390f9c9 | 563 | |
fef3106c | 564 | Wimplicit |
4a0ae68e | 565 | C ObjC Var(warn_implicit) Warning LangEnabledBy(C ObjC,Wall) |
a7b2e184 | 566 | Warn about implicit declarations. |
fef3106c | 567 | |
70f6d5e1 JJ |
568 | Wimplicit-fallthrough= |
569 | LangEnabledBy(C ObjC C++ ObjC++,Wextra,3,0) | |
570 | ; in common.opt | |
571 | ||
0a0b3574 MM |
572 | Wdouble-promotion |
573 | C ObjC C++ ObjC++ Var(warn_double_promotion) Warning | |
a7b2e184 | 574 | Warn about implicit conversions from \"float\" to \"double\". |
0a0b3574 | 575 | |
fb2675cb PB |
576 | Wexpansion-to-defined |
577 | C ObjC C++ ObjC++ CPP(warn_expansion_to_defined) CppReason(CPP_W_EXPANSION_TO_DEFINED) Var(cpp_warn_expansion_to_defined) Init(0) Warning EnabledBy(Wextra || Wpedantic) | |
578 | Warn if \"defined\" is used outside #if. | |
579 | ||
fef3106c | 580 | Wimplicit-function-declaration |
4a0ae68e | 581 | C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning LangEnabledBy(C ObjC,Wimplicit) |
a7b2e184 | 582 | Warn about implicit function declarations. |
fef3106c NB |
583 | |
584 | Wimplicit-int | |
92574c7c | 585 | C ObjC Var(warn_implicit_int) Init(-1) Warning LangEnabledBy(C ObjC,Wimplicit) |
a7b2e184 | 586 | Warn when a declaration does not specify a type. |
fef3106c NB |
587 | |
588 | Wimport | |
2d2bd949 | 589 | C ObjC C++ ObjC++ Undocumented Ignore |
fef3106c | 590 | |
4514a96b JM |
591 | Winherited-variadic-ctor |
592 | C++ ObjC++ Var(warn_inh_var_ctor) Init(1) Warning | |
a7b2e184 | 593 | Warn about C++11 inheriting constructors when the base has a variadic constructor. |
4514a96b | 594 | |
52ec0ea3 MP |
595 | Wint-conversion |
596 | C ObjC Var(warn_int_conversion) Init(1) Warning | |
a7b2e184 | 597 | Warn about incompatible integer to pointer and pointer to integer conversions. |
52ec0ea3 | 598 | |
144a96e4 BE |
599 | Wint-in-bool-context |
600 | C ObjC C++ ObjC++ Var(warn_int_in_bool_context) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
601 | Warn for suspicious integer expressions in boolean context. | |
602 | ||
53a2494e | 603 | Wint-to-pointer-cast |
dc8d2739 | 604 | C ObjC C++ ObjC++ Var(warn_int_to_pointer_cast) Init(1) Warning |
a7b2e184 | 605 | Warn when there is a cast to a pointer from an integer of a different size. |
53a2494e | 606 | |
fef3106c | 607 | Winvalid-offsetof |
c662432e | 608 | C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warning |
a7b2e184 | 609 | Warn about invalid uses of the \"offsetof\" macro. |
fef3106c NB |
610 | |
611 | Winvalid-pch | |
b559c810 | 612 | C ObjC C++ ObjC++ CPP(warn_invalid_pch) CppReason(CPP_W_INVALID_PCH) Var(cpp_warn_invalid_pch) Init(0) Warning |
a7b2e184 | 613 | Warn about PCH files that are found but not used. |
fef3106c | 614 | |
e1b7793c | 615 | Wjump-misses-init |
f2bc201f | 616 | C ObjC Var(warn_jump_misses_init) Warning LangEnabledby(C ObjC,Wc++-compat) |
a7b2e184 | 617 | Warn when a jump misses a variable initialization. |
e1b7793c | 618 | |
7f5f5f98 | 619 | Wliteral-suffix |
b559c810 | 620 | C++ ObjC++ CPP(warn_literal_suffix) CppReason(CPP_W_LITERAL_SUFFIX) Var(cpp_warn_literal_suffix) Init(1) Warning |
7f5f5f98 OW |
621 | Warn when a string or character literal is followed by a ud-suffix which does not begin with an underscore. |
622 | ||
ca409efd | 623 | Wlogical-op |
a7b2e184 MS |
624 | C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning |
625 | Warn when a logical operator is suspiciously always evaluating to true or false. | |
ca409efd | 626 | |
742938c9 | 627 | Wlogical-not-parentheses |
d2e4feca | 628 | C ObjC C++ ObjC++ Var(warn_logical_not_paren) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 629 | Warn when logical not is used on the left hand side operand of a comparison. |
742938c9 | 630 | |
fef3106c | 631 | Wlong-long |
b559c810 | 632 | C ObjC C++ ObjC++ CPP(cpp_warn_long_long) CppReason(CPP_W_LONG_LONG) Var(warn_long_long) Init(-1) Warning LangEnabledBy(C ObjC,Wc90-c99-compat) |
a7b2e184 | 633 | Do not warn about using \"long long\" when -pedantic. |
fef3106c NB |
634 | |
635 | Wmain | |
34a180a6 | 636 | C ObjC C++ ObjC++ Var(warn_main) Init(-1) Warning LangEnabledBy(C ObjC,Wall, 2, 0) |
a7b2e184 | 637 | Warn about suspicious declarations of \"main\". |
fef3106c | 638 | |
34a180a6 MLI |
639 | Wmain |
640 | LangEnabledBy(C ObjC C++ ObjC++,Wpedantic, 2, 0) | |
641 | ; | |
642 | ||
b108f48f JJ |
643 | Wmemset-transposed-args |
644 | C ObjC C++ ObjC++ Var(warn_memset_transposed_args) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
a7b2e184 | 645 | Warn about suspicious calls to memset where the third argument is constant literal zero and the second is not. |
b108f48f | 646 | |
c1e1f433 BS |
647 | Wmemset-elt-size |
648 | C ObjC C++ ObjC++ Var(warn_memset_elt_size) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
649 | Warn about suspicious calls to memset where the third argument contains the number of elements not multiplied by the element size. | |
650 | ||
c3388e62 | 651 | Wmisleading-indentation |
f6069ccc | 652 | C C++ Common Var(warn_misleading_indentation) Warning LangEnabledBy(C C++,Wall) |
a7b2e184 | 653 | Warn when the indentation of the code does not reflect the block structure. |
c3388e62 | 654 | |
fef3106c | 655 | Wmissing-braces |
4f7f7aca | 656 | C ObjC C++ ObjC++ Var(warn_missing_braces) Warning LangEnabledBy(C ObjC,Wall) |
a7b2e184 | 657 | Warn about possibly missing braces around initializers. |
fef3106c NB |
658 | |
659 | Wmissing-declarations | |
c662432e | 660 | C ObjC C++ ObjC++ Var(warn_missing_declarations) Warning |
a7b2e184 | 661 | Warn about global functions without previous declarations. |
fef3106c | 662 | |
eaac4679 | 663 | Wmissing-field-initializers |
95744782 | 664 | C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Warning EnabledBy(Wextra) |
a7b2e184 | 665 | Warn about missing fields in struct initializers. |
eaac4679 | 666 | |
6b333269 NS |
667 | Wmultiple-inheritance |
668 | C++ ObjC++ Var(warn_multiple_inheritance) Warning | |
a7b2e184 | 669 | Warn on direct multiple inheritance. |
6b333269 NS |
670 | |
671 | Wnamespaces | |
672 | C++ ObjC++ Var(warn_namespaces) Warning | |
a7b2e184 | 673 | Warn on namespace definition. |
6b333269 | 674 | |
20b06add JM |
675 | Wsized-deallocation |
676 | C++ ObjC++ Var(warn_sized_deallocation) Warning EnabledBy(Wextra) | |
a7b2e184 | 677 | Warn about missing sized deallocation functions. |
20b06add | 678 | |
1a4049e7 | 679 | Wsizeof-pointer-memaccess |
4a0ae68e | 680 | C ObjC C++ ObjC++ Var(warn_sizeof_pointer_memaccess) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 681 | Warn about suspicious length parameters to certain string functions if the argument uses sizeof. |
1a4049e7 | 682 | |
773ec47f MP |
683 | Wsizeof-array-argument |
684 | C ObjC C++ ObjC++ Var(warn_sizeof_array_argument) Warning Init(1) | |
a7b2e184 | 685 | Warn when sizeof is applied on a parameter declared as an array. |
773ec47f | 686 | |
90137d8f MLI |
687 | Wsuggest-attribute=format |
688 | C ObjC C++ ObjC++ Var(warn_suggest_attribute_format) Warning | |
a7b2e184 | 689 | Warn about functions which might be candidates for format attributes. |
fef3106c | 690 | |
2f42e5de TS |
691 | Wsuggest-override |
692 | C++ ObjC++ Var(warn_override) Warning | |
693 | Suggest that the override keyword be used when the declaration of a virtual | |
694 | function overrides another. | |
695 | ||
34a180a6 MLI |
696 | Wswitch |
697 | C ObjC C++ ObjC++ Var(warn_switch) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
a7b2e184 | 698 | Warn about enumerated switches, with no default, missing a case. |
34a180a6 MLI |
699 | |
700 | Wswitch-default | |
701 | C ObjC C++ ObjC++ Var(warn_switch_default) Warning | |
a7b2e184 | 702 | Warn about enumerated switches missing a \"default:\" statement. |
34a180a6 MLI |
703 | |
704 | Wswitch-enum | |
705 | C ObjC C++ ObjC++ Var(warn_switch_enum) Warning | |
a7b2e184 | 706 | Warn about all enumerated switches missing a specific case. |
34a180a6 | 707 | |
fedfecef | 708 | Wswitch-bool |
5c3d09f7 | 709 | C ObjC C++ ObjC++ Var(warn_switch_bool) Warning Init(1) |
a7b2e184 | 710 | Warn about switches with boolean controlling expression. |
fedfecef | 711 | |
6b333269 NS |
712 | Wtemplates |
713 | C++ ObjC++ Var(warn_templates) Warning | |
a7b2e184 | 714 | Warn on primary template declaration. |
6b333269 | 715 | |
90137d8f | 716 | Wmissing-format-attribute |
54d62f51 | 717 | C ObjC C++ ObjC++ Warning Alias(Wsuggest-attribute=format) |
90137d8f MLI |
718 | ; |
719 | ||
b02398bd | 720 | Wmissing-include-dirs |
b559c810 | 721 | C ObjC C++ ObjC++ CPP(warn_missing_include_dirs) CppReason(CPP_W_MISSING_INCLUDE_DIRS) Var(cpp_warn_missing_include_dirs) Init(0) Warning |
a7b2e184 | 722 | Warn about user-specified include directories that do not exist. |
b02398bd | 723 | |
cb4af25a | 724 | Wmissing-parameter-type |
95744782 | 725 | C ObjC Var(warn_missing_parameter_type) Warning EnabledBy(Wextra) |
a7b2e184 | 726 | Warn about function parameters declared without a type specifier in K&R-style functions. |
cb4af25a | 727 | |
fef3106c | 728 | Wmissing-prototypes |
c662432e | 729 | C ObjC Var(warn_missing_prototypes) Warning |
a7b2e184 | 730 | Warn about global functions without prototypes. |
fef3106c | 731 | |
5720c0dc | 732 | Wmudflap |
98906124 | 733 | C ObjC C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
5720c0dc | 734 | |
fef3106c | 735 | Wmultichar |
b559c810 | 736 | C ObjC C++ ObjC++ CPP(warn_multichar) CppReason(CPP_W_MULTICHAR) Var(cpp_warn_multichar) Init(0) Warning |
a7b2e184 | 737 | Warn about use of multi-character character constants. |
fef3106c | 738 | |
76f86d00 | 739 | Wnarrowing |
765189ff | 740 | C ObjC C++ ObjC++ Warning Var(warn_narrowing) Init(-1) LangEnabledBy(C++ ObjC++,Wall || Wc++11-compat) |
a7b2e184 | 741 | Warn about narrowing conversions within { } that are ill-formed in C++11. |
76f86d00 | 742 | |
fef3106c | 743 | Wnested-externs |
c662432e | 744 | C ObjC Var(warn_nested_externs) Warning |
a7b2e184 | 745 | Warn about \"extern\" declarations not at file scope. |
fef3106c | 746 | |
59f9c2ed JM |
747 | Wnoexcept |
748 | C++ ObjC++ Var(warn_noexcept) Warning | |
a7b2e184 | 749 | Warn when a noexcept expression evaluates to false even though the expression can't actually throw. |
59f9c2ed | 750 | |
fef3106c | 751 | Wnon-template-friend |
c662432e | 752 | C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning |
a7b2e184 | 753 | Warn when non-templatized friend functions are declared within a template. |
fef3106c NB |
754 | |
755 | Wnon-virtual-dtor | |
880a467b | 756 | C++ ObjC++ Var(warn_nonvdtor) Warning LangEnabledBy(C++ ObjC++,Weffc++) |
a7b2e184 | 757 | Warn about non-virtual destructors. |
fef3106c NB |
758 | |
759 | Wnonnull | |
7332899a | 760 | C ObjC C++ ObjC++ Var(warn_nonnull) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=,warn_format >= 1,0) |
a7b2e184 | 761 | Warn about NULL being passed to argument slots marked as requiring non-NULL. |
fef3106c | 762 | |
7332899a MLI |
763 | Wnonnull |
764 | C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
765 | ; | |
766 | ||
bf14eba2 JJ |
767 | Wnonnull-compare |
768 | C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
769 | ; | |
770 | ||
1ef33fd4 | 771 | Wnormalized |
54d62f51 | 772 | C ObjC C++ ObjC++ Warning Alias(Wnormalized=,nfc,none) |
1ef33fd4 MLI |
773 | ; |
774 | ||
50668cf6 | 775 | Wnormalized= |
b559c810 | 776 | C ObjC C++ ObjC++ RejectNegative Joined Warning CPP(warn_normalize) CppReason(CPP_W_NORMALIZE) Init(normalized_C) Var(cpp_warn_normalize) Enum(cpp_normalize_level) |
a7b2e184 | 777 | -Wnormalized=<none|id|nfc|nfkc> Warn about non-normalised Unicode strings. |
1ef33fd4 MLI |
778 | |
779 | ; Required for these enum values. | |
780 | SourceInclude | |
781 | cpplib.h | |
782 | ||
783 | Enum | |
784 | Name(cpp_normalize_level) Type(int) UnknownError(argument %qs to %<-Wnormalized%> not recognized) | |
785 | ||
786 | EnumValue | |
787 | Enum(cpp_normalize_level) String(none) Value(normalized_none) | |
788 | ||
789 | EnumValue | |
790 | Enum(cpp_normalize_level) String(nfkc) Value(normalized_KC) | |
791 | ||
792 | EnumValue | |
793 | Enum(cpp_normalize_level) String(id) Value(normalized_identifier_C) | |
794 | ||
795 | EnumValue | |
796 | Enum(cpp_normalize_level) String(nfc) Value(normalized_C) | |
50668cf6 | 797 | |
fef3106c | 798 | Wold-style-cast |
c662432e | 799 | C++ ObjC++ Var(warn_old_style_cast) Warning |
a7b2e184 | 800 | Warn if a C-style cast is used in a program. |
fef3106c | 801 | |
b1ed4cb4 | 802 | Wold-style-declaration |
95744782 | 803 | C ObjC Var(warn_old_style_declaration) Warning EnabledBy(Wextra) |
a7b2e184 | 804 | Warn for obsolescent usage in a declaration. |
b1ed4cb4 | 805 | |
c034f121 | 806 | Wold-style-definition |
c662432e | 807 | C ObjC Var(warn_old_style_definition) Warning |
a7b2e184 | 808 | Warn if an old-style parameter definition is used. |
c034f121 | 809 | |
8b5e1202 SO |
810 | Wopenmp-simd |
811 | C C++ Var(warn_openmp_simd) Warning LangEnabledBy(C C++,Wall) | |
a7b2e184 | 812 | Warn if a simd directive is overridden by the vectorizer cost model. |
8b5e1202 | 813 | |
89a42ac8 | 814 | Woverlength-strings |
34a180a6 | 815 | C ObjC C++ ObjC++ Var(warn_overlength_strings) Warning LangEnabledBy(C ObjC C++ ObjC++,Wpedantic) |
a7b2e184 | 816 | Warn if a string is longer than the maximum portable length specified by the standard. |
89a42ac8 | 817 | |
fef3106c | 818 | Woverloaded-virtual |
c662432e | 819 | C++ ObjC++ Var(warn_overloaded_virtual) Warning |
a7b2e184 | 820 | Warn about overloaded virtual function names. |
fef3106c | 821 | |
7ed322d7 | 822 | Woverride-init |
95744782 | 823 | C ObjC Var(warn_override_init) Warning EnabledBy(Wextra) |
a7b2e184 | 824 | Warn about overriding initializers without side effects. |
7ed322d7 | 825 | |
755e528f MP |
826 | Woverride-init-side-effects |
827 | C ObjC Var(warn_override_init_side_effects) Init(1) Warning | |
a7b2e184 | 828 | Warn about overriding initializers with side effects. |
755e528f | 829 | |
2cd36c22 | 830 | Wpacked-bitfield-compat |
bee6fa6d | 831 | C ObjC C++ ObjC++ Var(warn_packed_bitfield_compat) Init(-1) Warning |
a7b2e184 | 832 | Warn about packed bit-fields whose offset changed in GCC 4.4. |
2cd36c22 | 833 | |
fef3106c | 834 | Wparentheses |
4a0ae68e | 835 | C ObjC C++ ObjC++ Var(warn_parentheses) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 836 | Warn about possibly missing parentheses. |
fef3106c | 837 | |
c1771a20 | 838 | Wpedantic |
b559c810 | 839 | C ObjC C++ ObjC++ CPP(cpp_pedantic) CppReason(CPP_W_PEDANTIC) Warning |
c1771a20 MLI |
840 | ; Documented in common.opt |
841 | ||
fef3106c | 842 | Wpmf-conversions |
c662432e | 843 | C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning |
a7b2e184 | 844 | Warn when converting the type of pointers to member functions. |
fef3106c NB |
845 | |
846 | Wpointer-arith | |
44d90fe1 | 847 | C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning LangEnabledBy(C ObjC C++ ObjC++,Wpedantic) |
a7b2e184 | 848 | Warn about function pointer arithmetic. |
fef3106c | 849 | |
4a0ae68e | 850 | Wpointer-sign |
27e51192 | 851 | C ObjC Var(warn_pointer_sign) Warning LangEnabledBy(C ObjC,Wall || Wpedantic) |
a7b2e184 | 852 | Warn when a pointer differs in signedness in an assignment. |
4a0ae68e | 853 | |
53a2494e | 854 | Wpointer-to-int-cast |
c662432e | 855 | C ObjC Var(warn_pointer_to_int_cast) Init(1) Warning |
a7b2e184 | 856 | Warn when a pointer is cast to an integer of a different size. |
53a2494e | 857 | |
b9b8dde3 | 858 | Wpragmas |
c662432e | 859 | C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning |
a7b2e184 | 860 | Warn about misuses of pragmas. |
b9b8dde3 | 861 | |
9a179d01 NP |
862 | Wproperty-assign-default |
863 | ObjC ObjC++ Var(warn_property_assign_default) Init(1) Warning | |
a7b2e184 | 864 | Warn if a property for an Objective-C object has no assign semantics specified. |
9a179d01 | 865 | |
fef3106c | 866 | Wprotocol |
c662432e | 867 | ObjC ObjC++ Var(warn_protocol) Init(1) Warning |
a7b2e184 | 868 | Warn if inherited methods are unimplemented. |
fef3106c | 869 | |
e2f5cc96 | 870 | Wplacement-new |
46cb9332 MS |
871 | C++ Warning Alias(Wplacement-new=, 1, 0) |
872 | Warn for placement new expressions with undefined behavior. | |
873 | ||
874 | Wplacement-new= | |
875 | C++ Joined RejectNegative UInteger Var(warn_placement_new) Init(-1) Warning | |
eb11eb15 | 876 | Warn for placement new expressions with undefined behavior. |
e2f5cc96 | 877 | |
fef3106c | 878 | Wredundant-decls |
c662432e | 879 | C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning |
a7b2e184 | 880 | Warn about multiple declarations of the same object. |
fef3106c | 881 | |
a2c6e7f2 JJ |
882 | Wregister |
883 | C++ ObjC++ Var(warn_register) Warning | |
884 | Warn about uses of register storage specifier. | |
885 | ||
fef3106c | 886 | Wreorder |
f2bc201f | 887 | C++ ObjC++ Var(warn_reorder) Warning LangEnabledBy(C++ ObjC++,Wall) |
a7b2e184 | 888 | Warn when the compiler reorders code. |
fef3106c NB |
889 | |
890 | Wreturn-type | |
4a0ae68e | 891 | C ObjC C++ ObjC++ Var(warn_return_type) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 892 | Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++). |
fef3106c | 893 | |
ee45a32d EB |
894 | Wscalar-storage-order |
895 | C ObjC C++ ObjC++ Init(1) Warning | |
896 | Warn on suspicious constructs involving reverse scalar storage order. | |
897 | ||
fef3106c | 898 | Wselector |
c662432e | 899 | ObjC ObjC++ Var(warn_selector) Warning |
a7b2e184 | 900 | Warn if a selector has multiple methods. |
fef3106c | 901 | |
13c21655 PC |
902 | Wsequence-point |
903 | C ObjC C++ ObjC++ Var(warn_sequence_point) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
a7b2e184 | 904 | Warn about possible violations of sequence point rules. |
13c21655 | 905 | |
dcaaa5a0 | 906 | Wshadow-ivar |
dff8943f | 907 | ObjC ObjC++ Var(warn_shadow_ivar) EnabledBy(Wshadow) Init(1) Warning |
a7b2e184 | 908 | Warn if a local declaration hides an instance variable. |
dcaaa5a0 | 909 | |
451b5e48 MP |
910 | Wshift-overflow |
911 | C ObjC C++ ObjC++ Warning Alias(Wshift-overflow=, 1, 0) | |
a7b2e184 | 912 | Warn if left shift of a signed value overflows. |
451b5e48 MP |
913 | |
914 | Wshift-overflow= | |
915 | C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_shift_overflow) Init(-1) Warning | |
a7b2e184 | 916 | Warn if left shift of a signed value overflows. |
451b5e48 | 917 | |
13c21655 PC |
918 | Wshift-count-negative |
919 | C ObjC C++ ObjC++ Var(warn_shift_count_negative) Init(1) Warning | |
a7b2e184 | 920 | Warn if shift count is negative. |
13c21655 PC |
921 | |
922 | Wshift-count-overflow | |
923 | C ObjC C++ ObjC++ Var(warn_shift_count_overflow) Init(1) Warning | |
a7b2e184 | 924 | Warn if shift count >= width of type. |
fef3106c | 925 | |
0173bd2a MP |
926 | Wshift-negative-value |
927 | C ObjC C++ ObjC++ Var(warn_shift_negative_value) Init(-1) Warning | |
a7b2e184 | 928 | Warn if left shifting a negative value. |
0173bd2a | 929 | |
fef3106c | 930 | Wsign-compare |
4a0ae68e | 931 | C ObjC C++ ObjC++ Var(warn_sign_compare) Warning LangEnabledBy(C++ ObjC++,Wall) |
a7b2e184 | 932 | Warn about signed-unsigned comparisons. |
fef3106c | 933 | |
4a0ae68e MLI |
934 | Wsign-compare |
935 | C ObjC C++ ObjC++ EnabledBy(Wextra) | |
936 | ; | |
937 | ||
938 | Wsign-conversion | |
63bbf46d | 939 | C ObjC C++ ObjC++ Var(warn_sign_conversion) Warning LangEnabledBy(C ObjC,Wconversion) |
a7b2e184 | 940 | Warn for implicit type conversions between signed and unsigned integers. |
4a0ae68e | 941 | |
fef3106c | 942 | Wsign-promo |
c662432e | 943 | C++ ObjC++ Var(warn_sign_promo) Warning |
a7b2e184 | 944 | Warn when overload promotes from unsigned to signed. |
fef3106c | 945 | |
b2f97e4a | 946 | Wstrict-null-sentinel |
5498f011 | 947 | C++ ObjC++ Warning Var(warn_strict_null_sentinel) |
a7b2e184 | 948 | Warn about uncasted NULL used as sentinel. |
b2f97e4a | 949 | |
fef3106c | 950 | Wstrict-prototypes |
c662432e | 951 | C ObjC Var(warn_strict_prototypes) Warning |
a7b2e184 | 952 | Warn about unprototyped function declarations. |
fef3106c | 953 | |
65d4f2cd MLI |
954 | Wstrict-aliasing= |
955 | C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall, 3, 0) | |
956 | ; | |
957 | ||
958 | Wstrict-overflow= | |
959 | C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) | |
960 | ; | |
961 | ||
6e955430 | 962 | Wstrict-selector-match |
c662432e | 963 | ObjC ObjC++ Var(warn_strict_selector_match) Warning |
a7b2e184 | 964 | Warn if type signatures of candidate methods do not match exactly. |
6e955430 | 965 | |
23462d4d UB |
966 | Wsync-nand |
967 | C C++ Var(warn_sync_nand) Init(1) Warning | |
a7b2e184 | 968 | Warn when __sync_fetch_and_nand and __sync_nand_and_fetch built-in functions are used. |
23462d4d | 969 | |
fef3106c | 970 | Wsynth |
c662432e | 971 | C++ ObjC++ Var(warn_synth) Warning |
a7b2e184 | 972 | Deprecated. This switch has no effect. |
fef3106c NB |
973 | |
974 | Wsystem-headers | |
c662432e | 975 | C ObjC C++ ObjC++ Warning |
9a0f3e86 | 976 | ; Documented in common.opt |
fef3106c | 977 | |
05b28fd6 MP |
978 | Wtautological-compare |
979 | C ObjC C++ ObjC++ Var(warn_tautological_compare) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
a7b2e184 | 980 | Warn if a comparison always evaluates to true or false. |
05b28fd6 | 981 | |
8243e2a9 JM |
982 | Wterminate |
983 | C++ ObjC++ Warning Var(warn_terminate) Init(1) | |
a7b2e184 | 984 | Warn if a throw expression will always result in a call to terminate(). |
8243e2a9 | 985 | |
fef3106c | 986 | Wtraditional |
b559c810 | 987 | C ObjC CPP(cpp_warn_traditional) CppReason(CPP_W_TRADITIONAL) Var(warn_traditional) Init(0) Warning |
a7b2e184 | 988 | Warn about features not present in traditional C. |
fef3106c | 989 | |
05170031 | 990 | Wtraditional-conversion |
c662432e | 991 | C ObjC Var(warn_traditional_conversion) Warning |
a7b2e184 | 992 | Warn of prototypes causing type conversions different from what would happen in the absence of prototype. |
05170031 | 993 | |
fef3106c | 994 | Wtrigraphs |
b559c810 | 995 | C ObjC C++ ObjC++ CPP(warn_trigraphs) CppReason(CPP_W_TRIGRAPHS) Var(cpp_warn_trigraphs) Init(2) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 996 | Warn if trigraphs are encountered that might affect the meaning of the program. |
fef3106c NB |
997 | |
998 | Wundeclared-selector | |
c662432e | 999 | ObjC ObjC++ Var(warn_undeclared_selector) Warning |
a7b2e184 | 1000 | Warn about @selector()s without previously declared methods. |
fef3106c NB |
1001 | |
1002 | Wundef | |
b559c810 | 1003 | C ObjC C++ ObjC++ CPP(warn_undef) CppReason(CPP_W_UNDEF) Var(cpp_warn_undef) Init(0) Warning |
a7b2e184 | 1004 | Warn if an undefined macro is used in an #if directive. |
fef3106c | 1005 | |
4a0ae68e MLI |
1006 | Wuninitialized |
1007 | C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
1008 | ; | |
1009 | ||
1010 | Wmaybe-uninitialized | |
1011 | C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
1012 | ; | |
1013 | ||
fef3106c | 1014 | Wunknown-pragmas |
34a180a6 | 1015 | C ObjC C++ ObjC++ Warning Var(warn_unknown_pragmas) LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) |
a7b2e184 | 1016 | Warn about unrecognized pragmas. |
fef3106c | 1017 | |
6ec637a4 JJ |
1018 | Wunsuffixed-float-constants |
1019 | C ObjC Var(warn_unsuffixed_float_constants) Warning | |
a7b2e184 | 1020 | Warn about unsuffixed float constants. |
6ec637a4 | 1021 | |
4a0ae68e MLI |
1022 | Wunused |
1023 | C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall) | |
1024 | ; documented in common.opt | |
1025 | ||
3797cb21 | 1026 | Wunused-local-typedefs |
650dc14a | 1027 | C ObjC C++ ObjC++ Var(warn_unused_local_typedefs) Warning EnabledBy(Wunused) |
a7b2e184 | 1028 | Warn when typedefs locally defined in a function are not used. |
3797cb21 | 1029 | |
fef3106c | 1030 | Wunused-macros |
b559c810 | 1031 | C ObjC C++ ObjC++ CppReason(CPP_W_UNUSED_MACROS) Var(cpp_warn_unused_macros) Warning |
a7b2e184 | 1032 | Warn about macros defined in the main file that are not used. |
fef3106c | 1033 | |
156f545a MLI |
1034 | Wunused-result |
1035 | C ObjC C++ ObjC++ Var(warn_unused_result) Init(1) Warning | |
a7b2e184 | 1036 | Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value. |
156f545a | 1037 | |
0f876f22 MW |
1038 | Wunused-variable |
1039 | C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wunused) | |
1040 | ; documented in common.opt | |
1041 | ||
1042 | Wunused-const-variable | |
4246c8da MW |
1043 | C ObjC C++ ObjC++ Warning Alias(Wunused-const-variable=, 2, 0) |
1044 | Warn when a const variable is unused. | |
1045 | ||
1046 | Wunused-const-variable= | |
1047 | C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_unused_const_variable) Warning LangEnabledBy(C ObjC,Wunused-variable, 1, 0) | |
a7b2e184 | 1048 | Warn when a const variable is unused. |
0f876f22 | 1049 | |
e5b79219 | 1050 | Wvariadic-macros |
27e51192 | 1051 | C ObjC C++ ObjC++ CPP(warn_variadic_macros) CppReason(CPP_W_VARIADIC_MACROS) Var(cpp_warn_variadic_macros) Init(0) Warning LangEnabledBy(C ObjC C++ ObjC++,Wpedantic || Wtraditional) |
a7b2e184 | 1052 | Warn about using variadic macros. |
e5b79219 | 1053 | |
b9c8da34 DS |
1054 | Wvarargs |
1055 | C ObjC C++ ObjC++ Warning Var(warn_varargs) Init(1) | |
a7b2e184 | 1056 | Warn about questionable usage of the macros used to retrieve variable arguments. |
b9c8da34 | 1057 | |
50d50fc7 SP |
1058 | Wvla |
1059 | C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning | |
a7b2e184 | 1060 | Warn if a variable length array is used. |
50d50fc7 | 1061 | |
adc577c5 AH |
1062 | Wvla-larger-than= |
1063 | C ObjC C++ ObjC++ Var(warn_vla_limit) Warning Joined RejectNegative UInteger | |
1064 | -Wvla-larger-than=<number> Warn on unbounded uses of variable-length arrays, and | |
1065 | on bounded uses of variable-length arrays whose bound can be | |
1066 | larger than <number> bytes. | |
1067 | ||
16302daf | 1068 | Wvolatile-register-var |
4a0ae68e | 1069 | C ObjC C++ ObjC++ Var(warn_volatile_register_var) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall) |
a7b2e184 | 1070 | Warn when a register variable is declared volatile. |
16302daf | 1071 | |
6b333269 NS |
1072 | Wvirtual-inheritance |
1073 | C++ ObjC++ Var(warn_virtual_inheritance) Warning | |
a7b2e184 | 1074 | Warn on direct virtual inheritance. |
6b333269 | 1075 | |
f14edc1a JM |
1076 | Wvirtual-move-assign |
1077 | C++ ObjC++ Var(warn_virtual_move_assign) Warning Init(1) | |
a7b2e184 | 1078 | Warn if a virtual base has a non-trivial move assignment operator. |
f14edc1a | 1079 | |
fef3106c | 1080 | Wwrite-strings |
c662432e | 1081 | C ObjC C++ ObjC++ Var(warn_write_strings) Warning |
d8a07487 | 1082 | In C++, nonzero means warn about deprecated conversion from string literals to 'char *'. In C, similar warning, except that the conversion is of course not deprecated by the ISO C standard. |
fef3106c | 1083 | |
89401152 PC |
1084 | Wzero-as-null-pointer-constant |
1085 | C++ ObjC++ Var(warn_zero_as_null_pointer_constant) Warning | |
a7b2e184 | 1086 | Warn when a literal '0' is used as null pointer. |
89401152 | 1087 | |
04398fa8 PC |
1088 | Wuseless-cast |
1089 | C++ ObjC++ Var(warn_useless_cast) Warning | |
a7b2e184 | 1090 | Warn about useless casts. |
04398fa8 | 1091 | |
273aa49e PC |
1092 | Wsubobject-linkage |
1093 | C++ ObjC++ Var(warn_subobject_linkage) Warning Init(1) | |
a7b2e184 | 1094 | Warn if a class type has a base or a field whose type uses the anonymous namespace or depends on a type with no linkage. |
273aa49e | 1095 | |
d6e83a8d MM |
1096 | Wduplicate-decl-specifier |
1097 | C ObjC Var(warn_duplicate_decl_specifier) Warning LangEnabledBy(C ObjC,Wall) | |
1098 | Warn when a declaration has duplicate const, volatile, restrict or _Atomic specifier. | |
1099 | ||
975672f3 PK |
1100 | Wrestrict |
1101 | C ObjC C++ ObjC++ Var(warn_restrict) Warning LangEnabledBy(C ObjC C++ ObjC++) | |
1102 | Warn when an argument passed to a restrict-qualified parameter aliases with | |
1103 | another argument. | |
1104 | ||
fef3106c NB |
1105 | ansi |
1106 | C ObjC C++ ObjC++ | |
a7b2e184 | 1107 | A synonym for -std=c89 (for C) or -std=c++98 (for C++). |
fef3106c NB |
1108 | |
1109 | d | |
1110 | C ObjC C++ ObjC++ Joined | |
72de27ea | 1111 | ; Documented in common.opt. FIXME - what about -dI, -dD, -dN and -dD? |
fef3106c | 1112 | |
62984918 JM |
1113 | fabi-compat-version= |
1114 | C++ ObjC++ Joined RejectNegative UInteger Var(flag_abi_compat_version) Init(-1) | |
a7b2e184 | 1115 | The version of the C++ ABI used for -Wabi warnings and link compatibility aliases. |
62984918 | 1116 | |
fef3106c | 1117 | faccess-control |
5498f011 | 1118 | C++ ObjC++ Var(flag_access_control) Init(1) |
a7b2e184 | 1119 | Enforce class member access control semantics. |
fef3106c | 1120 | |
da5182be TQ |
1121 | fada-spec-parent= |
1122 | C ObjC C++ ObjC++ RejectNegative Joined Var(ada_specs_parent) | |
a7b2e184 | 1123 | -fada-spec-parent=unit Dump Ada specs as child units of given parent. |
da5182be | 1124 | |
af63ba4b JM |
1125 | faligned-new |
1126 | C++ ObjC++ Alias(faligned-new=,1,0) | |
1127 | Support C++17 allocation of over-aligned types. | |
1128 | ||
1129 | faligned-new= | |
2e1c20b1 | 1130 | C++ ObjC++ Joined RejectNegative Var(aligned_new_threshold) UInteger Init(-1) |
af63ba4b JM |
1131 | -faligned-new=<N> Use C++17 over-aligned type allocation for alignments greater than N. |
1132 | ||
fef3106c | 1133 | fall-virtual |
2d2bd949 | 1134 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1135 | |
6637388f TG |
1136 | fallow-parameterless-variadic-functions |
1137 | C ObjC Var(flag_allow_parameterless_variadic_functions) | |
a7b2e184 | 1138 | Allow variadic functions without named parameter. |
6637388f | 1139 | |
fef3106c | 1140 | falt-external-templates |
2d2bd949 | 1141 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
a7b2e184 | 1142 | No longer supported. |
fef3106c NB |
1143 | |
1144 | fasm | |
5498f011 | 1145 | C ObjC C++ ObjC++ Var(flag_no_asm, 0) |
a7b2e184 | 1146 | Recognize the \"asm\" keyword. |
fef3106c | 1147 | |
10e48e39 RO |
1148 | ; Define extra predefined macros for use in libgcc. |
1149 | fbuilding-libgcc | |
1150 | C ObjC C++ ObjC++ Undocumented Var(flag_building_libgcc) | |
1151 | ||
fef3106c | 1152 | fbuiltin |
5498f011 | 1153 | C ObjC C++ ObjC++ Var(flag_no_builtin, 0) |
a7b2e184 | 1154 | Recognize built-in functions. |
fef3106c NB |
1155 | |
1156 | fbuiltin- | |
1157 | C ObjC C++ ObjC++ Joined | |
1158 | ||
5dc99c46 SB |
1159 | fcanonical-system-headers |
1160 | C ObjC C++ ObjC++ | |
1161 | Where shorter, use canonicalized paths to systems headers. | |
1162 | ||
d5e254e1 | 1163 | fcheck-pointer-bounds |
79d64904 | 1164 | C ObjC C++ ObjC++ LTO Report Var(flag_check_pointer_bounds) |
d5e254e1 IE |
1165 | Add Pointer Bounds Checker instrumentation. fchkp-* flags are used to |
1166 | control instrumentation. Currently available for C, C++ and ObjC. | |
1167 | ||
1168 | fchkp-check-incomplete-type | |
79d64904 | 1169 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_incomplete_type) Init(1) |
a7b2e184 | 1170 | Generate pointer bounds checks for variables with incomplete type. |
d5e254e1 IE |
1171 | |
1172 | fchkp-zero-input-bounds-for-main | |
79d64904 | 1173 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_zero_input_bounds_for_main) Init(0) |
d5e254e1 IE |
1174 | Use zero bounds for all incoming arguments in 'main' function. It helps when |
1175 | instrumented binaries are used with legacy libs. | |
1176 | ||
1177 | fchkp-first-field-has-own-bounds | |
79d64904 | 1178 | C ObjC C++ ObjC++ LTO RejectNegative Report Var(flag_chkp_first_field_has_own_bounds) |
d5e254e1 IE |
1179 | Forces Pointer Bounds Checker to use narrowed bounds for address of the first |
1180 | field in the structure. By default pointer to the first field has the same | |
1181 | bounds as pointer to the whole structure. | |
1182 | ||
1183 | fchkp-narrow-bounds | |
79d64904 | 1184 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_narrow_bounds) Init(1) |
d5e254e1 IE |
1185 | Control how Pointer Bounds Checker handle pointers to object fields. When |
1186 | narrowing is on, field bounds are used. Otherwise full object bounds are used. | |
1187 | ||
1188 | fchkp-narrow-to-innermost-array | |
79d64904 | 1189 | C ObjC C++ ObjC++ LTO RejectNegative Report Var(flag_chkp_narrow_to_innermost_arrray) |
d5e254e1 IE |
1190 | Forces Pointer Bounds Checker to use bounds of the innermost arrays in case of |
1191 | nested static arryas access. By default outermost array is used. | |
1192 | ||
1193 | fchkp-optimize | |
1194 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_optimize) Init(-1) | |
1195 | Allow Pointer Bounds Checker optimizations. By default allowed | |
1196 | on optimization levels >0. | |
1197 | ||
1198 | fchkp-use-fast-string-functions | |
1199 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_use_fast_string_functions) Init(0) | |
1200 | Allow to use *_nobnd versions of string functions by Pointer Bounds Checker. | |
1201 | ||
1202 | fchkp-use-nochk-string-functions | |
1203 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_use_nochk_string_functions) Init(0) | |
1204 | Allow to use *_nochk versions of string functions by Pointer Bounds Checker. | |
1205 | ||
1206 | fchkp-use-static-bounds | |
79d64904 | 1207 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_use_static_bounds) Init(1) |
d5e254e1 IE |
1208 | Use statically initialized variable for vars bounds instead of |
1209 | generating them each time it is required. | |
1210 | ||
1211 | fchkp-use-static-const-bounds | |
79d64904 | 1212 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_use_static_const_bounds) Init(-1) |
d5e254e1 IE |
1213 | Use statically initialized variable for constant bounds instead of |
1214 | generating them each time it is required. | |
1215 | ||
1216 | fchkp-treat-zero-dynamic-size-as-infinite | |
79d64904 | 1217 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_zero_dynamic_size_as_infinite) Init(0) |
d5e254e1 IE |
1218 | With this option zero size obtained dynamically for objects with |
1219 | incomplete type will be treated as infinite. | |
1220 | ||
1221 | fchkp-check-read | |
1222 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_check_read) Init(1) | |
1223 | Generate checks for all read accesses to memory. | |
1224 | ||
1225 | fchkp-check-write | |
1226 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_check_write) Init(1) | |
1227 | Generate checks for all write accesses to memory. | |
1228 | ||
1229 | fchkp-store-bounds | |
1230 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_store_bounds) Init(1) | |
1231 | Generate bounds stores for pointer writes. | |
1232 | ||
1233 | fchkp-instrument-calls | |
1234 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_instrument_calls) Init(1) | |
1235 | Generate bounds passing for calls. | |
1236 | ||
1237 | fchkp-instrument-marked-only | |
1238 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_instrument_marked_only) Init(0) | |
1239 | Instrument only functions marked with bnd_instrument attribute. | |
1240 | ||
226d62d2 IE |
1241 | fchkp-use-wrappers |
1242 | C ObjC C++ ObjC++ LTO Report Var(flag_chkp_use_wrappers) Init(1) | |
1243 | Transform instrumented builtin calls into calls to wrappers. | |
1244 | ||
5373cd33 IE |
1245 | static-libmpx |
1246 | Driver | |
1247 | ||
d2d7e672 IE |
1248 | static-libmpxwrappers |
1249 | Driver | |
1250 | ||
36536d79 | 1251 | fcilkplus |
b72271b9 | 1252 | C ObjC C++ ObjC++ LTO Report Var(flag_cilkplus) Init(0) |
a7b2e184 | 1253 | Enable Cilk Plus. |
36536d79 | 1254 | |
971e17ff AS |
1255 | fconcepts |
1256 | C++ ObjC++ Var(flag_concepts) | |
a7b2e184 | 1257 | Enable support for C++ concepts. |
971e17ff | 1258 | |
fef3106c NB |
1259 | fcond-mismatch |
1260 | C ObjC C++ ObjC++ | |
a7b2e184 | 1261 | Allow the arguments of the '?' operator to have different types. |
fef3106c NB |
1262 | |
1263 | fconserve-space | |
5498f011 | 1264 | C++ ObjC++ Var(flag_conserve_space) |
6f07a821 | 1265 | Does nothing. Preserved for backward compatibility. |
fef3106c | 1266 | |
fef3106c | 1267 | fconstant-string-class= |
61ff2bdc | 1268 | ObjC ObjC++ Joined MissingArgError(no class name specified with %qs) |
a7b2e184 | 1269 | -fconst-string-class=<name> Use class <name> for constant strings. |
fef3106c | 1270 | |
17bc631c | 1271 | fconstexpr-depth= |
49a000c3 | 1272 | C++ ObjC++ Joined RejectNegative UInteger Var(max_constexpr_depth) Init(512) |
a7b2e184 | 1273 | -fconstexpr-depth=<number> Specify maximum constexpr recursion depth. |
17bc631c | 1274 | |
5ec2cd9f JM |
1275 | fconstexpr-loop-limit= |
1276 | C++ ObjC++ Joined RejectNegative UInteger Var(constexpr_loop_limit) Init(262144) | |
1277 | -fconstexpr-loop-limit=<number> Specify maximum constexpr loop iteration count. | |
1278 | ||
847e697a TT |
1279 | fdebug-cpp |
1280 | C ObjC C++ ObjC++ | |
a7b2e184 | 1281 | Emit debug annotations during preprocessing. |
847e697a | 1282 | |
5f5babf1 | 1283 | fdeduce-init-list |
15694fdd | 1284 | C++ ObjC++ Var(flag_deduce_init_list) Init(0) |
a7b2e184 | 1285 | -fdeduce-init-list enable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list. |
5f5babf1 | 1286 | |
1f26ac87 JM |
1287 | fdeclone-ctor-dtor |
1288 | C++ ObjC++ Var(flag_declone_ctor_dtor) Init(-1) | |
a7b2e184 | 1289 | Factor complex constructors and destructors to favor space over speed. |
1f26ac87 | 1290 | |
fef3106c | 1291 | fdefault-inline |
2d2bd949 | 1292 | C++ ObjC++ Ignore |
5498f011 | 1293 | Does nothing. Preserved for backward compatibility. |
fef3106c | 1294 | |
ccfc4c91 OW |
1295 | fdirectives-only |
1296 | C ObjC C++ ObjC++ | |
1297 | Preprocess directives only. | |
1298 | ||
fef3106c NB |
1299 | fdollars-in-identifiers |
1300 | C ObjC C++ ObjC++ | |
a7b2e184 | 1301 | Permit '$' as an identifier character. |
fef3106c | 1302 | |
3b78de56 AC |
1303 | fdump-ada-spec |
1304 | C ObjC C++ ObjC++ RejectNegative Var(flag_dump_ada_spec) | |
a7b2e184 | 1305 | Write all declarations as Ada code transitively. |
3b78de56 AC |
1306 | |
1307 | fdump-ada-spec-slim | |
1308 | C ObjC C++ ObjC++ RejectNegative Var(flag_dump_ada_spec_slim) | |
a7b2e184 | 1309 | Write all declarations as Ada code for the given file only. |
3b78de56 | 1310 | |
fef3106c | 1311 | felide-constructors |
5498f011 | 1312 | C++ ObjC++ Var(flag_elide_constructors) Init(1) |
fef3106c NB |
1313 | |
1314 | fenforce-eh-specs | |
5498f011 | 1315 | C++ ObjC++ Var(flag_enforce_eh_specs) Init(1) |
a7b2e184 | 1316 | Generate code to check exception specifications. |
fef3106c NB |
1317 | |
1318 | fenum-int-equiv | |
2d2bd949 | 1319 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1320 | |
e6cc3a24 ZW |
1321 | fexec-charset= |
1322 | C ObjC C++ ObjC++ Joined RejectNegative | |
a7b2e184 | 1323 | -fexec-charset=<cset> Convert all strings and character constants to character set <cset>. |
e6cc3a24 | 1324 | |
af15a2fe JM |
1325 | fextended-identifiers |
1326 | C ObjC C++ ObjC++ | |
a7b2e184 | 1327 | Permit universal character names (\\u and \\U) in identifiers. |
af15a2fe | 1328 | |
16dd5cfe EC |
1329 | finput-charset= |
1330 | C ObjC C++ ObjC++ Joined RejectNegative | |
a7b2e184 | 1331 | -finput-charset=<cset> Specify the default character set for source files. |
16dd5cfe | 1332 | |
5af057d8 JM |
1333 | fextern-tls-init |
1334 | C++ ObjC++ Var(flag_extern_tls_init) Init(-1) | |
a7b2e184 | 1335 | Support dynamic initialization of thread-local variables in a different translation unit. |
16dd5cfe | 1336 | |
fef3106c | 1337 | fexternal-templates |
2d2bd949 | 1338 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1339 | |
fef3106c | 1340 | ffor-scope |
5498f011 | 1341 | C++ ObjC++ Var(flag_new_for_scope) Init(1) |
a7b2e184 | 1342 | Scope of for-init-statement variables is local to the loop. |
fef3106c NB |
1343 | |
1344 | ffreestanding | |
820b51ae | 1345 | C ObjC C++ ObjC++ |
a7b2e184 | 1346 | Do not assume that standard C libraries and \"main\" exist. |
fef3106c NB |
1347 | |
1348 | fgnu-keywords | |
5498f011 | 1349 | C++ ObjC++ Var(flag_no_gnu_keywords, 0) |
a7b2e184 | 1350 | Recognize GNU-defined keywords. |
fef3106c NB |
1351 | |
1352 | fgnu-runtime | |
fb5610fb | 1353 | ObjC ObjC++ LTO Report RejectNegative Var(flag_next_runtime,0) Init(NEXT_OBJC_RUNTIME) |
a7b2e184 | 1354 | Generate code for GNU runtime environment. |
fef3106c | 1355 | |
da1c7394 | 1356 | fgnu89-inline |
2cbac420 | 1357 | C ObjC Var(flag_gnu89_inline) Init(-1) |
a7b2e184 | 1358 | Use traditional GNU semantics for inline functions. |
da1c7394 | 1359 | |
fef3106c | 1360 | fguiding-decls |
2d2bd949 | 1361 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
1362 | |
1363 | fhandle-exceptions | |
2d2bd949 | 1364 | C++ ObjC++ Optimization Alias(fexceptions) Warn({-fhandle-exceptions has been renamed -fexceptions (and is now on by default)}) |
fef3106c NB |
1365 | |
1366 | fhonor-std | |
2d2bd949 | 1367 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
1368 | |
1369 | fhosted | |
1370 | C ObjC | |
a7b2e184 | 1371 | Assume normal C execution environment. |
fef3106c NB |
1372 | |
1373 | fhuge-objects | |
2d2bd949 | 1374 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
a7b2e184 | 1375 | No longer supported. |
fef3106c NB |
1376 | |
1377 | fimplement-inlines | |
5498f011 | 1378 | C++ ObjC++ Var(flag_implement_inlines) Init(1) |
a7b2e184 | 1379 | Export functions even if they can be inlined. |
fef3106c NB |
1380 | |
1381 | fimplicit-inline-templates | |
5498f011 | 1382 | C++ ObjC++ Var(flag_implicit_inline_templates) Init(1) |
a7b2e184 | 1383 | Emit implicit instantiations of inline templates. |
fef3106c NB |
1384 | |
1385 | fimplicit-templates | |
5498f011 | 1386 | C++ ObjC++ Var(flag_implicit_templates) Init(1) |
a7b2e184 | 1387 | Emit implicit instantiations of templates. |
fef3106c | 1388 | |
31f7f784 JM |
1389 | fnew-inheriting-ctors |
1390 | C++ ObjC++ Var(flag_new_inheriting_ctors) Init(1) | |
1391 | Implement C++17 inheriting constructor semantics. | |
1392 | ||
d63d5d0c | 1393 | ffriend-injection |
2cbac420 | 1394 | C++ ObjC++ Var(flag_friend_injection) |
a7b2e184 | 1395 | Inject friend functions into enclosing namespace. |
d63d5d0c | 1396 | |
47ea1edf DK |
1397 | fkeep-inline-dllexport |
1398 | C C++ ObjC ObjC++ Var(flag_keep_inline_dllexport) Init(1) Report Condition(TARGET_DLLIMPORT_DECL_ATTRIBUTES) | |
a7b2e184 | 1399 | Don't emit dllexported inline functions unless needed. |
47ea1edf | 1400 | |
fef3106c | 1401 | flabels-ok |
2d2bd949 | 1402 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1403 | |
00c8e9f6 | 1404 | flax-vector-conversions |
5498f011 | 1405 | C ObjC C++ ObjC++ Var(flag_lax_vector_conversions) |
00c8e9f6 MS |
1406 | Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types. |
1407 | ||
fef3106c | 1408 | fms-extensions |
5498f011 | 1409 | C ObjC C++ ObjC++ Var(flag_ms_extensions) |
a7b2e184 | 1410 | Don't warn about uses of Microsoft extensions. |
fef3106c | 1411 | |
5720c0dc | 1412 | fmudflap |
98906124 | 1413 | C ObjC C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
5720c0dc RG |
1414 | |
1415 | fmudflapth | |
98906124 | 1416 | C ObjC C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
5720c0dc RG |
1417 | |
1418 | fmudflapir | |
98906124 | 1419 | C ObjC C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
5720c0dc | 1420 | |
fef3106c | 1421 | fname-mangling-version- |
2d2bd949 | 1422 | C++ ObjC++ Joined Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
1423 | |
1424 | fnew-abi | |
2d2bd949 | 1425 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
1426 | |
1427 | fnext-runtime | |
fb5610fb | 1428 | ObjC ObjC++ LTO Report RejectNegative Var(flag_next_runtime) |
a7b2e184 | 1429 | Generate code for NeXT (Apple Mac OS X) runtime environment. |
264fa2db ZL |
1430 | |
1431 | fnil-receivers | |
5498f011 | 1432 | ObjC ObjC++ Var(flag_nil_receivers) Init(1) |
a7b2e184 | 1433 | Assume that receivers of Objective-C messages may be nil. |
fef3106c | 1434 | |
dcaaa5a0 DP |
1435 | flocal-ivars |
1436 | ObjC ObjC++ Var(flag_local_ivars) Init(1) | |
1437 | Allow access to instance variables as if they were local declarations within instance method implementations. | |
1438 | ||
1439 | fivar-visibility= | |
1440 | ObjC ObjC++ Joined RejectNegative Enum(ivar_visibility) Var(default_ivar_visibility) Init(IVAR_VISIBILITY_PROTECTED) | |
a7b2e184 | 1441 | -fvisibility=[private|protected|public|package] Set the default symbol visibility. |
dcaaa5a0 DP |
1442 | |
1443 | Enum | |
1444 | Name(ivar_visibility) Type(enum ivar_visibility) UnknownError(unrecognized ivar visibility value %qs) | |
1445 | ||
1446 | EnumValue | |
1447 | Enum(ivar_visibility) String(private) Value(IVAR_VISIBILITY_PRIVATE) | |
1448 | ||
1449 | EnumValue | |
1450 | Enum(ivar_visibility) String(protected) Value(IVAR_VISIBILITY_PROTECTED) | |
1451 | ||
1452 | EnumValue | |
1453 | Enum(ivar_visibility) String(public) Value(IVAR_VISIBILITY_PUBLIC) | |
1454 | ||
1455 | EnumValue | |
1456 | Enum(ivar_visibility) String(package) Value(IVAR_VISIBILITY_PACKAGE) | |
1457 | ||
fef3106c | 1458 | fnonansi-builtins |
5498f011 | 1459 | C++ ObjC++ Var(flag_no_nonansi_builtin, 0) |
fef3106c NB |
1460 | |
1461 | fnonnull-objects | |
2d2bd949 | 1462 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1463 | |
9feb3d6a JM |
1464 | fnothrow-opt |
1465 | C++ ObjC++ Optimization Var(flag_nothrow_opt) | |
a7b2e184 | 1466 | Treat a throw() exception specification as noexcept to improve code size. |
9feb3d6a | 1467 | |
0a256240 | 1468 | fobjc-abi-version= |
fb5610fb | 1469 | ObjC ObjC++ LTO Joined Report RejectNegative UInteger Var(flag_objc_abi) |
0a256240 NP |
1470 | Specify which ABI to use for Objective-C family code and meta-data generation. |
1471 | ||
6e955430 ZL |
1472 | ; Generate special '- .cxx_construct' and '- .cxx_destruct' methods |
1473 | ; to initialize any non-POD ivars in Objective-C++ classes. | |
1474 | fobjc-call-cxx-cdtors | |
1475 | ObjC++ Var(flag_objc_call_cxx_cdtors) | |
a7b2e184 | 1476 | Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed. |
6e955430 ZL |
1477 | |
1478 | fobjc-direct-dispatch | |
1479 | ObjC ObjC++ Var(flag_objc_direct_dispatch) | |
a7b2e184 | 1480 | Allow fast jumps to the message dispatcher. |
6e955430 ZL |
1481 | |
1482 | ; Nonzero means that we will allow new ObjC exception syntax (@throw, | |
1483 | ; @try, etc.) in source code. | |
264fa2db | 1484 | fobjc-exceptions |
6e955430 | 1485 | ObjC ObjC++ Var(flag_objc_exceptions) |
a7b2e184 | 1486 | Enable Objective-C exception and synchronization syntax. |
264fa2db | 1487 | |
6e955430 | 1488 | fobjc-gc |
fb5610fb | 1489 | ObjC ObjC++ LTO Var(flag_objc_gc) |
a7b2e184 | 1490 | Enable garbage collection (GC) in Objective-C/Objective-C++ programs. |
6e955430 | 1491 | |
0a256240 NP |
1492 | fobjc-nilcheck |
1493 | ObjC ObjC++ Var(flag_objc_nilcheck,1) | |
1494 | Enable inline checks for nil receivers with the NeXT runtime and ABI version 2. | |
1495 | ||
6e955430 | 1496 | ; Nonzero means that we generate NeXT setjmp based exceptions. |
093c7153 | 1497 | fobjc-sjlj-exceptions |
6e955430 | 1498 | ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1) |
a7b2e184 | 1499 | Enable Objective-C setjmp exception handling runtime. |
093c7153 | 1500 | |
22d8d616 NP |
1501 | fobjc-std=objc1 |
1502 | ObjC ObjC++ Var(flag_objc1_only) | |
a7b2e184 | 1503 | Conform to the Objective-C 1.0 language as implemented in GCC 4.0. |
22d8d616 | 1504 | |
41dbbb37 | 1505 | fopenacc |
a0c88d06 | 1506 | C ObjC C++ ObjC++ LTO Var(flag_openacc) |
a7b2e184 | 1507 | Enable OpenACC. |
41dbbb37 | 1508 | |
b6adbb9f NS |
1509 | fopenacc-dim= |
1510 | C ObjC C++ ObjC++ LTO Joined Var(flag_openacc_dims) | |
1511 | Specify default OpenACC compute dimensions. | |
1512 | ||
953ff289 | 1513 | fopenmp |
1506ae0e | 1514 | C ObjC C++ ObjC++ LTO Var(flag_openmp) |
a7b2e184 | 1515 | Enable OpenMP (implies -frecursive in Fortran). |
953ff289 | 1516 | |
6d7f7e0a TB |
1517 | fopenmp-simd |
1518 | C ObjC C++ ObjC++ Var(flag_openmp_simd) | |
a7b2e184 | 1519 | Enable OpenMP's SIMD directives. |
6d7f7e0a | 1520 | |
fef3106c NB |
1521 | foperator-names |
1522 | C++ ObjC++ | |
a7b2e184 | 1523 | Recognize C++ keywords like \"compl\" and \"xor\". |
fef3106c NB |
1524 | |
1525 | foptional-diags | |
2d2bd949 | 1526 | C++ ObjC++ Ignore |
5498f011 | 1527 | Does nothing. Preserved for backward compatibility. |
fef3106c NB |
1528 | |
1529 | fpch-deps | |
1530 | C ObjC C++ ObjC++ | |
1531 | ||
c0d578e6 GK |
1532 | fpch-preprocess |
1533 | C ObjC C++ ObjC++ | |
a7b2e184 | 1534 | Look for and use PCH files even when preprocessing. |
c0d578e6 | 1535 | |
fef3106c | 1536 | fpermissive |
0c3641b0 | 1537 | C++ ObjC++ Var(flag_permissive) |
a7b2e184 | 1538 | Downgrade conformance errors to warnings. |
fef3106c | 1539 | |
478a1c5b ILT |
1540 | fplan9-extensions |
1541 | C ObjC Var(flag_plan9_extensions) | |
a7b2e184 | 1542 | Enable Plan 9 language extensions. |
478a1c5b | 1543 | |
fef3106c NB |
1544 | fpreprocessed |
1545 | C ObjC C++ ObjC++ | |
a7b2e184 | 1546 | Treat the input file as already preprocessed. |
fef3106c | 1547 | |
92582b75 TT |
1548 | ftrack-macro-expansion |
1549 | C ObjC C++ ObjC++ JoinedOrMissing RejectNegative UInteger | |
1550 | ; converted into ftrack-macro-expansion= | |
1551 | ||
1552 | ftrack-macro-expansion= | |
1553 | C ObjC C++ ObjC++ JoinedOrMissing RejectNegative UInteger | |
a7b2e184 | 1554 | -ftrack-macro-expansion=<0|1|2> Track locations of tokens coming from macro expansion and display them in error messages. |
92582b75 | 1555 | |
6ea2bd47 | 1556 | fpretty-templates |
5498f011 | 1557 | C++ ObjC++ Var(flag_pretty_templates) Init(1) |
a7b2e184 | 1558 | -fno-pretty-templates Do not pretty-print template specializations as the template signature followed by the arguments. |
6ea2bd47 | 1559 | |
88d0c3f0 | 1560 | fprintf-return-value |
89990732 | 1561 | C ObjC C++ ObjC++ LTO Optimization Var(flag_printf_return_value) Init(1) |
88d0c3f0 MS |
1562 | Treat known sprintf return values as constants. |
1563 | ||
264fa2db | 1564 | freplace-objc-classes |
fb5610fb | 1565 | ObjC ObjC++ LTO Var(flag_replace_objc_classes) |
a7b2e184 | 1566 | Used in Fix-and-Continue mode to indicate that object files may be swapped in at runtime. |
264fa2db | 1567 | |
fef3106c NB |
1568 | frepo |
1569 | C++ ObjC++ | |
a7b2e184 | 1570 | Enable automatic template instantiation. |
fef3106c NB |
1571 | |
1572 | frtti | |
5498f011 | 1573 | C++ ObjC++ Optimization Var(flag_rtti) Init(1) |
a7b2e184 | 1574 | Generate run time type descriptor information. |
fef3106c | 1575 | |
fef3106c | 1576 | fshort-enums |
dd6fe7d4 | 1577 | C ObjC C++ ObjC++ LTO Optimization Var(flag_short_enums) |
a7b2e184 | 1578 | Use the narrowest integer type possible for enumeration types. |
fef3106c NB |
1579 | |
1580 | fshort-wchar | |
dd6fe7d4 | 1581 | C ObjC C++ ObjC++ LTO Optimization Var(flag_short_wchar) |
a7b2e184 | 1582 | Force the underlying type for \"wchar_t\" to be \"unsigned short\". |
fef3106c | 1583 | |
fef3106c | 1584 | fsigned-bitfields |
5498f011 | 1585 | C ObjC C++ ObjC++ Var(flag_signed_bitfields) Init(1) |
a7b2e184 | 1586 | When \"signed\" or \"unsigned\" is not given make the bitfield signed. |
fef3106c NB |
1587 | |
1588 | fsigned-char | |
5498f011 | 1589 | C ObjC C++ ObjC++ LTO Var(flag_signed_char) |
a7b2e184 | 1590 | Make \"char\" signed by default. |
fef3106c | 1591 | |
20b06add JM |
1592 | fsized-deallocation |
1593 | C++ ObjC++ Var(flag_sized_deallocation) Init(-1) | |
a7b2e184 | 1594 | Enable C++14 sized deallocation support. |
20b06add | 1595 | |
fef3106c | 1596 | fsquangle |
2d2bd949 | 1597 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1598 | |
ee45a32d EB |
1599 | fsso-struct= |
1600 | C ObjC Joined Enum(sso_struct) Var(default_sso) Init(SSO_NATIVE) | |
1601 | -fsso-struct=[big-endian|little-endian] Set the default scalar storage order. | |
1602 | ||
1603 | Enum | |
1604 | Name(sso_struct) Type(enum scalar_storage_order_kind) UnknownError(unrecognized scalar storage order value %qs) | |
1605 | ||
1606 | EnumValue | |
1607 | Enum(sso_struct) String(big-endian) Value(SSO_BIG_ENDIAN) | |
1608 | ||
1609 | EnumValue | |
1610 | Enum(sso_struct) String(little-endian) Value(SSO_LITTLE_ENDIAN) | |
1611 | ||
fef3106c | 1612 | fstats |
5498f011 | 1613 | C++ ObjC++ Var(flag_detailed_statistics) |
a7b2e184 | 1614 | Display statistics accumulated during compilation. |
fef3106c | 1615 | |
cbb4feb3 JM |
1616 | fstrict-enums |
1617 | C++ ObjC++ Optimization Var(flag_strict_enums) | |
a7b2e184 | 1618 | Assume that values of enumeration type are always within the minimum range of that type. |
cbb4feb3 | 1619 | |
fef3106c | 1620 | fstrict-prototype |
2d2bd949 | 1621 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1622 | |
d0cf395a JM |
1623 | fstrong-eval-order |
1624 | C++ ObjC++ Common Alias(fstrong-eval-order=, all, none) | |
1625 | Follow the C++17 evaluation order requirements for assignment expressions, | |
1626 | shift, member function calls, etc. | |
1627 | ||
1628 | fstrong-eval-order= | |
1629 | C++ ObjC++ Common Var(flag_strong_eval_order) Joined Enum(strong_eval_order) Init(-1) | |
1630 | Follow the C++17 evaluation order requirements for assignment expressions, | |
1631 | shift, member function calls, etc. | |
1632 | ||
1633 | Enum | |
1634 | Name(strong_eval_order) Type(int) | |
1635 | ||
1636 | EnumValue | |
1637 | Enum(strong_eval_order) String(none) Value(0) | |
1638 | ||
1639 | EnumValue | |
1640 | Enum(strong_eval_order) String(some) Value(1) | |
1641 | ||
1642 | EnumValue | |
1643 | Enum(strong_eval_order) String(all) Value(2) | |
1644 | ||
fef3106c | 1645 | ftabstop= |
7b086b11 | 1646 | C ObjC C++ ObjC++ Joined RejectNegative UInteger |
a7b2e184 | 1647 | -ftabstop=<number> Distance between tab stops for column reporting. |
fef3106c | 1648 | |
a12bf402 MLI |
1649 | ftemplate-backtrace-limit= |
1650 | C++ ObjC++ Joined RejectNegative UInteger Var(template_backtrace_limit) Init(10) | |
a7b2e184 | 1651 | Set the maximum number of template instantiation notes for a single warning or error. |
a12bf402 | 1652 | |
fef3106c | 1653 | ftemplate-depth- |
5de8299c | 1654 | C++ ObjC++ Joined RejectNegative Undocumented Alias(ftemplate-depth=) |
124e0d27 MLI |
1655 | |
1656 | ftemplate-depth= | |
c22cacf3 | 1657 | C++ ObjC++ Joined RejectNegative UInteger |
a7b2e184 | 1658 | -ftemplate-depth=<number> Specify maximum template instantiation depth. |
fef3106c NB |
1659 | |
1660 | fthis-is-variable | |
2d2bd949 | 1661 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1662 | |
40aac948 | 1663 | fthreadsafe-statics |
5498f011 | 1664 | C++ ObjC++ Optimization Var(flag_threadsafe_statics) Init(1) |
a7b2e184 | 1665 | -fno-threadsafe-statics Do not generate thread-safe code for initializing local statics. |
40aac948 | 1666 | |
fef3106c | 1667 | funsigned-bitfields |
f0036cca | 1668 | C ObjC C++ ObjC++ Var(flag_signed_bitfields, 0) |
a7b2e184 | 1669 | When \"signed\" or \"unsigned\" is not given make the bitfield unsigned. |
fef3106c NB |
1670 | |
1671 | funsigned-char | |
f0036cca | 1672 | C ObjC C++ ObjC++ LTO Var(flag_signed_char, 0) |
a7b2e184 | 1673 | Make \"char\" unsigned by default. |
fef3106c NB |
1674 | |
1675 | fuse-cxa-atexit | |
5498f011 | 1676 | C++ ObjC++ Var(flag_use_cxa_atexit) Init(DEFAULT_USE_CXA_ATEXIT) |
a7b2e184 | 1677 | Use __cxa_atexit to register destructors. |
fef3106c | 1678 | |
c7b5e395 | 1679 | fuse-cxa-get-exception-ptr |
5498f011 | 1680 | C++ ObjC++ Var(flag_use_cxa_get_exception_ptr) Init(2) |
a7b2e184 | 1681 | Use __cxa_get_exception_ptr in exception handling. |
c7b5e395 | 1682 | |
d7afec4b | 1683 | fvisibility-inlines-hidden |
d0b07283 | 1684 | C++ ObjC++ |
a7b2e184 | 1685 | Marks all inlined functions and methods as having hidden visibility. |
d7afec4b | 1686 | |
ddbfd28d GK |
1687 | fvisibility-ms-compat |
1688 | C++ ObjC++ Var(flag_visibility_ms_compat) | |
a7b2e184 | 1689 | Changes visibility to match Microsoft Visual Studio by default. |
ddbfd28d | 1690 | |
fef3106c | 1691 | fvtable-gc |
2d2bd949 | 1692 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
a7b2e184 | 1693 | No longer supported. |
fef3106c NB |
1694 | |
1695 | fvtable-thunks | |
2d2bd949 | 1696 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
a7b2e184 | 1697 | No longer supported. |
fef3106c NB |
1698 | |
1699 | fweak | |
5498f011 | 1700 | C++ ObjC++ Var(flag_weak) Init(1) |
a7b2e184 | 1701 | Emit common-like symbols as weak symbols. |
fef3106c | 1702 | |
e6cc3a24 ZW |
1703 | fwide-exec-charset= |
1704 | C ObjC C++ ObjC++ Joined RejectNegative | |
a7b2e184 | 1705 | -fwide-exec-charset=<cset> Convert all wide strings and character constants to character set <cset>. |
e6cc3a24 | 1706 | |
b20d9f0c | 1707 | fworking-directory |
5498f011 | 1708 | C ObjC C++ ObjC++ Var(flag_working_directory) Init(-1) |
a7b2e184 | 1709 | Generate a #line directive pointing at the current working directory. |
b20d9f0c | 1710 | |
fef3106c | 1711 | fxref |
2d2bd949 | 1712 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
a7b2e184 | 1713 | No longer supported. |
fef3106c | 1714 | |
264fa2db | 1715 | fzero-link |
5498f011 | 1716 | ObjC ObjC++ Var(flag_zero_link) |
a7b2e184 | 1717 | Generate lazy class lookup (via objc_getClass()) for use in Zero-Link mode. |
264fa2db | 1718 | |
fef3106c | 1719 | gen-decls |
5498f011 | 1720 | ObjC ObjC++ Var(flag_gen_declaration) |
a7b2e184 | 1721 | Dump declarations to a .decl file. |
fef3106c | 1722 | |
39ef6592 LC |
1723 | femit-struct-debug-baseonly |
1724 | C ObjC C++ ObjC++ | |
a7b2e184 | 1725 | -femit-struct-debug-baseonly Aggressive reduced debug info for structs. |
39ef6592 LC |
1726 | |
1727 | femit-struct-debug-reduced | |
1728 | C ObjC C++ ObjC++ | |
a7b2e184 | 1729 | -femit-struct-debug-reduced Conservative reduced debug info for structs. |
39ef6592 LC |
1730 | |
1731 | femit-struct-debug-detailed= | |
1732 | C ObjC C++ ObjC++ Joined | |
a7b2e184 | 1733 | -femit-struct-debug-detailed=<spec-list> Detailed reduced debug info for structs. |
39ef6592 | 1734 | |
a4a0016d | 1735 | fext-numeric-literals |
dcb466ec | 1736 | C++ ObjC++ Var(flag_ext_numeric_literals) Init(1) |
a4a0016d ESR |
1737 | Interpret imaginary, fixed-point, or other gnu number suffix as the corresponding |
1738 | number literal rather than a user-defined number literal. | |
1739 | ||
fef3106c | 1740 | idirafter |
61ff2bdc | 1741 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
a7b2e184 | 1742 | -idirafter <dir> Add <dir> to the end of the system include path. |
fef3106c NB |
1743 | |
1744 | imacros | |
61ff2bdc | 1745 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
a7b2e184 | 1746 | -imacros <file> Accept definition of macros in <file>. |
fef3106c | 1747 | |
2b6dd222 JM |
1748 | imultilib |
1749 | C ObjC C++ ObjC++ Joined Separate | |
a7b2e184 | 1750 | -imultilib <dir> Set <dir> to be the multilib include subdirectory. |
2b6dd222 | 1751 | |
fef3106c | 1752 | include |
61ff2bdc | 1753 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
a7b2e184 | 1754 | -include <file> Include the contents of <file> before other files. |
fef3106c NB |
1755 | |
1756 | iprefix | |
1757 | C ObjC C++ ObjC++ Joined Separate | |
a7b2e184 | 1758 | -iprefix <path> Specify <path> as a prefix for next two options. |
fef3106c NB |
1759 | |
1760 | isysroot | |
61ff2bdc | 1761 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
a7b2e184 | 1762 | -isysroot <dir> Set <dir> to be the system root directory. |
fef3106c NB |
1763 | |
1764 | isystem | |
61ff2bdc | 1765 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
a7b2e184 | 1766 | -isystem <dir> Add <dir> to the start of the system include path. |
fef3106c | 1767 | |
4bed3787 | 1768 | iquote |
61ff2bdc | 1769 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
a7b2e184 | 1770 | -iquote <dir> Add <dir> to the end of the quote include path. |
4bed3787 | 1771 | |
fef3106c NB |
1772 | iwithprefix |
1773 | C ObjC C++ ObjC++ Joined Separate | |
a7b2e184 | 1774 | -iwithprefix <dir> Add <dir> to the end of the system include path. |
fef3106c NB |
1775 | |
1776 | iwithprefixbefore | |
1777 | C ObjC C++ ObjC++ Joined Separate | |
a7b2e184 | 1778 | -iwithprefixbefore <dir> Add <dir> to the end of the main include path. |
fef3106c NB |
1779 | |
1780 | lang-asm | |
603349bf | 1781 | C Undocumented RejectDriver |
fef3106c | 1782 | |
e200444e JM |
1783 | no-integrated-cpp |
1784 | Driver | |
1785 | ||
fef3106c NB |
1786 | nostdinc |
1787 | C ObjC C++ ObjC++ | |
a7b2e184 | 1788 | Do not search standard system include directories (those specified with -isystem will still be used). |
fef3106c NB |
1789 | |
1790 | nostdinc++ | |
72de27ea | 1791 | C++ ObjC++ |
a7b2e184 | 1792 | Do not search standard system include directories for C++. |
fef3106c NB |
1793 | |
1794 | o | |
1795 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1796 | ; Documented in common.opt |
fef3106c NB |
1797 | |
1798 | pedantic | |
c1771a20 | 1799 | C ObjC C++ ObjC++ Alias(Wpedantic) |
72de27ea | 1800 | ; Documented in common.opt |
fef3106c | 1801 | |
fef3106c NB |
1802 | print-objc-runtime-info |
1803 | ObjC ObjC++ | |
a7b2e184 | 1804 | Generate C header of platform-specific features. |
fef3106c NB |
1805 | |
1806 | remap | |
1807 | C ObjC C++ ObjC++ | |
a7b2e184 | 1808 | Remap file names when including files. |
fef3106c NB |
1809 | |
1810 | std=c++98 | |
1811 | C++ ObjC++ | |
a7b2e184 | 1812 | Conform to the ISO 1998 C++ standard revised by the 2003 technical corrigendum. |
c7dc8804 JM |
1813 | |
1814 | std=c++03 | |
1815 | C++ ObjC++ Alias(std=c++98) | |
a7b2e184 | 1816 | Conform to the ISO 1998 C++ standard revised by the 2003 technical corrigendum. |
fef3106c | 1817 | |
97e3ad20 | 1818 | std=c++11 |
966541e3 | 1819 | C++ ObjC++ |
a7b2e184 | 1820 | Conform to the ISO 2011 C++ standard. |
97e3ad20 JM |
1821 | |
1822 | std=c++0x | |
70e24808 | 1823 | C++ ObjC++ Alias(std=c++11) Undocumented |
a7b2e184 | 1824 | Deprecated in favor of -std=c++11. |
966541e3 | 1825 | |
552b8185 | 1826 | std=c++1y |
028aee17 | 1827 | C++ ObjC++ Alias(std=c++14) Undocumented |
a7b2e184 | 1828 | Deprecated in favor of -std=c++14. |
70e24808 JM |
1829 | |
1830 | std=c++14 | |
381bf11e | 1831 | C++ ObjC++ |
a7b2e184 | 1832 | Conform to the ISO 2014 C++ standard. |
552b8185 | 1833 | |
da73100b JM |
1834 | std=c++1z |
1835 | C++ ObjC++ | |
a7b2e184 | 1836 | Conform to the ISO 2017(?) C++ draft standard (experimental and incomplete support). |
da73100b JM |
1837 | |
1838 | std=c++17 | |
1839 | C++ ObjC++ Alias(std=c++1z) Undocumented | |
1840 | ||
48b0b196 | 1841 | std=c11 |
2778d766 | 1842 | C ObjC |
a7b2e184 | 1843 | Conform to the ISO 2011 C standard. |
48b0b196 JM |
1844 | |
1845 | std=c1x | |
1846 | C ObjC Alias(std=c11) | |
a7b2e184 | 1847 | Deprecated in favor of -std=c11. |
2778d766 | 1848 | |
fef3106c | 1849 | std=c89 |
5de8299c | 1850 | C ObjC Alias(std=c90) |
a7b2e184 | 1851 | Conform to the ISO 1990 C standard. |
fef3106c | 1852 | |
7e1542b9 MLI |
1853 | std=c90 |
1854 | C ObjC | |
a7b2e184 | 1855 | Conform to the ISO 1990 C standard. |
7e1542b9 | 1856 | |
fef3106c NB |
1857 | std=c99 |
1858 | C ObjC | |
a7b2e184 | 1859 | Conform to the ISO 1999 C standard. |
fef3106c NB |
1860 | |
1861 | std=c9x | |
5de8299c | 1862 | C ObjC Alias(std=c99) |
a7b2e184 | 1863 | Deprecated in favor of -std=c99. |
fef3106c NB |
1864 | |
1865 | std=gnu++98 | |
1866 | C++ ObjC++ | |
97e3ad20 | 1867 | Conform to the ISO 1998 C++ standard revised by the 2003 technical |
a7b2e184 | 1868 | corrigendum with GNU extensions. |
fef3106c | 1869 | |
97e3ad20 JM |
1870 | std=gnu++03 |
1871 | C++ ObjC++ Alias(std=gnu++98) | |
1872 | Conform to the ISO 1998 C++ standard revised by the 2003 technical | |
a7b2e184 | 1873 | corrigendum with GNU extensions. |
97e3ad20 JM |
1874 | |
1875 | std=gnu++11 | |
966541e3 | 1876 | C++ ObjC++ |
a7b2e184 | 1877 | Conform to the ISO 2011 C++ standard with GNU extensions. |
97e3ad20 JM |
1878 | |
1879 | std=gnu++0x | |
381bf11e | 1880 | C++ ObjC++ Alias(std=gnu++11) Undocumented |
a7b2e184 | 1881 | Deprecated in favor of -std=gnu++11. |
966541e3 | 1882 | |
552b8185 | 1883 | std=gnu++1y |
028aee17 | 1884 | C++ ObjC++ Alias(std=gnu++14) Undocumented |
a7b2e184 | 1885 | Deprecated in favor of -std=gnu++14. |
552b8185 | 1886 | |
a07f6ed2 | 1887 | std=gnu++14 |
028aee17 | 1888 | C++ ObjC++ |
a7b2e184 | 1889 | Conform to the ISO 2014 C++ standard with GNU extensions. |
a07f6ed2 | 1890 | |
da73100b JM |
1891 | std=gnu++1z |
1892 | C++ ObjC++ | |
a7b2e184 | 1893 | Conform to the ISO 201z(7?) C++ draft standard with GNU extensions (experimental and incomplete support). |
da73100b JM |
1894 | |
1895 | std=gnu++17 | |
a545cacd | 1896 | C++ ObjC++ Alias(std=gnu++1z) Undocumented |
da73100b | 1897 | |
48b0b196 | 1898 | std=gnu11 |
2778d766 | 1899 | C ObjC |
a7b2e184 | 1900 | Conform to the ISO 2011 C standard with GNU extensions. |
48b0b196 JM |
1901 | |
1902 | std=gnu1x | |
1903 | C ObjC Alias(std=gnu11) | |
a7b2e184 | 1904 | Deprecated in favor of -std=gnu11. |
2778d766 | 1905 | |
fef3106c | 1906 | std=gnu89 |
5de8299c | 1907 | C ObjC Alias(std=gnu90) |
a7b2e184 | 1908 | Conform to the ISO 1990 C standard with GNU extensions. |
fef3106c | 1909 | |
7e1542b9 MLI |
1910 | std=gnu90 |
1911 | C ObjC | |
a7b2e184 | 1912 | Conform to the ISO 1990 C standard with GNU extensions. |
7e1542b9 | 1913 | |
fef3106c NB |
1914 | std=gnu99 |
1915 | C ObjC | |
a7b2e184 | 1916 | Conform to the ISO 1999 C standard with GNU extensions. |
fef3106c NB |
1917 | |
1918 | std=gnu9x | |
5de8299c | 1919 | C ObjC Alias(std=gnu99) |
a7b2e184 | 1920 | Deprecated in favor of -std=gnu99. |
fef3106c NB |
1921 | |
1922 | std=iso9899:1990 | |
5de8299c | 1923 | C ObjC Alias(std=c90) |
a7b2e184 | 1924 | Conform to the ISO 1990 C standard. |
fef3106c NB |
1925 | |
1926 | std=iso9899:199409 | |
1927 | C ObjC | |
a7b2e184 | 1928 | Conform to the ISO 1990 C standard as amended in 1994. |
fef3106c NB |
1929 | |
1930 | std=iso9899:1999 | |
5de8299c | 1931 | C ObjC Alias(std=c99) |
a7b2e184 | 1932 | Conform to the ISO 1999 C standard. |
fef3106c NB |
1933 | |
1934 | std=iso9899:199x | |
5de8299c | 1935 | C ObjC Alias(std=c99) |
a7b2e184 | 1936 | Deprecated in favor of -std=iso9899:1999. |
fef3106c | 1937 | |
48b0b196 JM |
1938 | std=iso9899:2011 |
1939 | C ObjC Alias(std=c11) | |
a7b2e184 | 1940 | Conform to the ISO 2011 C standard. |
48b0b196 | 1941 | |
e200444e JM |
1942 | traditional |
1943 | Driver | |
1944 | ||
fef3106c NB |
1945 | traditional-cpp |
1946 | C ObjC C++ ObjC++ | |
a7b2e184 | 1947 | Enable traditional preprocessing. |
fef3106c NB |
1948 | |
1949 | trigraphs | |
1950 | C ObjC C++ ObjC++ | |
a7b2e184 | 1951 | -trigraphs Support ISO C trigraphs. |
fef3106c NB |
1952 | |
1953 | undef | |
5498f011 | 1954 | C ObjC C++ ObjC++ Var(flag_undef) |
a7b2e184 | 1955 | Do not predefine system-specific and GCC-specific macros. |
fef3106c NB |
1956 | |
1957 | v | |
d5478783 JM |
1958 | C ObjC C++ ObjC++ |
1959 | ; Documented in common.opt | |
fef3106c NB |
1960 | |
1961 | w | |
1962 | C ObjC C++ ObjC++ | |
72de27ea | 1963 | ; Documented in common.opt |
e11a4ae5 NB |
1964 | |
1965 | ; This comment is to ensure we retain the blank line above. |