build-aux/gcc-warning.spec

   1 # options to filter out, and why
   2 --all-warnings                          alias for -Wall
   3 --extra-warnings                        alias for -Wextra
   4 -W                                      alias for -Wextra
   5 -Wabi                                   this is now a no-op
   6 -Wabi-tag                               c++
   7 -Wabi=                                  c++
   8 -Wabsolute-value                        enabled by -Wextra
   9 -Waddress                               enabled by -Wall
  10 -Waddress-of-packed-member              default
  11 -Waggregate-return                      obsolescent
  12 -Waggressive-loop-optimizations         default
  13 -Waliasing                              fortran
  14 -Walign-commons                         fortran
  15 -Waligned-new=[none|global|all]         c++
  16 -Walloc-size                            enabled by -Wextra
  17 -Walloc-size-larger-than=<bytes>        defaults to PTRDIFF_MAX
  18 -Walloc-zero                            Gnulib fixes this problem
  19 -Walloca                                we like alloca in small doses
  20 -Walloca-larger-than=<number>           FIXME: choose something sane?
  21 -Wampersand                             fortran
  22 -Wanalyzer-allocation-size              enabled by -fanalyzer
  23 -Wanalyzer-deref-before-check           enabled by -fanalyzer
  24 -Wanalyzer-double-fclose                enabled by -fanalyzer
  25 -Wanalyzer-double-free                  enabled by -fanalyzer
  26 -Wanalyzer-exposure-through-output-file enabled by -fanalyzer
  27 -Wanalyzer-exposure-through-uninit-copy enabled by -fanalyzer
  28 -Wanalyzer-fd-access-mode-mismatch      enabled by -fanalyzer
  29 -Wanalyzer-fd-double-close              enabled by -fanalyzer
  30 -Wanalyzer-fd-leak                      enabled by -fanalyzer
  31 -Wanalyzer-fd-phase-mismatch            enabled by -fanalyzer
  32 -Wanalyzer-fd-type-mismatch             enabled by -fanalyzer
  33 -Wanalyzer-fd-use-after-close           enabled by -fanalyzer
  34 -Wanalyzer-fd-use-without-check         enabled by -fanalyzer
  35 -Wanalyzer-file-leak                    enabled by -fanalyzer
  36 -Wanalyzer-free-of-non-heap             enabled by -fanalyzer
  37 -Wanalyzer-imprecise-fp-arithmetic      enabled by -fanalyzer
  38 -Wanalyzer-infinite-loop                enabled by -fanalyzer
  39 -Wanalyzer-infinite-recursion           enabled by -fanalyzer
  40 -Wanalyzer-jump-through-null            enabled by -fanalyzer
  41 -Wanalyzer-malloc-leak                  enabled by -fanalyzer
  42 -Wanalyzer-mismatching-deallocation     enabled by -fanalyzer
  43 -Wanalyzer-null-argument                enabled by -fanalyzer
  44 -Wanalyzer-null-dereference             enabled by -fanalyzer
  45 -Wanalyzer-out-of-bounds                enabled by -fanalyzer
  46 -Wanalyzer-overlapping-buffers          enabled by -fanalyzer
  47 -Wanalyzer-possible-null-argument       enabled by -fanalyzer
  48 -Wanalyzer-possible-null-dereference    enabled by -fanalyzer
  49 -Wanalyzer-putenv-of-auto-var           enabled by -fanalyzer
  50 -Wanalyzer-shift-count-negative         enabled by -fanalyzer
  51 -Wanalyzer-shift-count-overflow         enabled by -fanalyzer
  52 -Wanalyzer-stale-setjmp-buffer          implied by -fanalyzer
  53 -Wanalyzer-symbol-too-complex           warns about compiler not about program
  54 -Wanalyzer-tainted-allocation-size      FIXME requires -fanalyzer-checker=taint
  55 -Wanalyzer-tainted-array-index          FIXME requires -fanalyzer-checker=taint
  56 -Wanalyzer-tainted-assertion            FIXME requires -fanalyzer-checker=taint
  57 -Wanalyzer-tainted-divisor              FIXME requires -fanalyzer-checker=taint
  58 -Wanalyzer-tainted-offset               FIXME requires -fanalyzer-checker=taint
  59 -Wanalyzer-tainted-size                 FIXME requires -fanalyzer-checker=taint
  60 -Wanalyzer-undefined-behavior-strtok    enabled by -fanalyzer
  61 -Wanalyzer-va-arg-type-mismatch         enabled by -fanalyzer
  62 -Wanalyzer-va-list-exhausted            enabled by -fanalyzer
  63 -Wanalyzer-va-list-leak                 enabled by -fanalyzer
  64 -Wanalyzer-va-list-use-after-va-end     enabled by -fanalyzer
  65 -Wanalyzer-too-complex                  enabled by -fanalyzer
  66 -Wanalyzer-unsafe-call-within-signal-handler    enabled by -fanalyzer
  67 -Wanalyzer-use-after-free               enabled by -fanalyzer
  68 -Wanalyzer-use-of-pointer-in-stale-stack-frame  enabled by -fanalyzer
  69 -Wanalyzer-use-of-uninitialized-value   enabled by -fanalyzer
  70 -Wanalyzer-write-to-const               enabled by -fanalyzer
  71 -Wanalyzer-write-to-string-literal      enabled by -fanalyzer
  72 -Warray-bounds                          covered by -Warray-bounds=
  73 -Warray-bounds=<0,2>                    handled specially by gl_MANYWARN_ALL_GCC
  74 -Warray-compare                         enabled by -Wall
  75 -Warray-parameter                       enabled by -Wall
  76 -Warray-parameter=<0,2>                 enabled by -Wall
  77 -Warray-temporaries                     fortran
  78 -Wassign-intercept                      objc/objc++
  79 -Wattribute-alias                       covered by -Wattribute-alias=2
  80 -Wattribute-alias=<0,2>                 handled specially by gl_MANYWARN_ALL_GCC
  81 -Wattribute-warning                     default
  82 -Wattributes                            default
  83 -Wbidi-chars                            handled specially by gl_MANYWARN_ALL_GCC
  84 -Wbidi-chars=                           handled specially by gl_MANYWARN_ALL_GCC
  85 -Wbool-compare                          enabled by -Wall
  86 -Wbool-operation                        enabled by -Wall
  87 -Wbuiltin-declaration-mismatch          default
  88 -Wbuiltin-macro-redefined               default
  89 -Wc++-compat                            only useful for code meant to be compiled by a C++ compiler
  90 -Wc++0x-compat                          c++
  91 -Wc++11-compat                          c++
  92 -Wc++11-extensions                      c++
  93 -Wc++14-compat                          c++
  94 -Wc++14-extensions                      c++
  95 -Wc++17-compat                          c++
  96 -Wc++17-extensions                      c++
  97 -Wc++1z-compat                          c++
  98 -Wc++20-compat                          c++
  99 -Wc++20-extensions                      c++
 100 -Wc++23-extensions                      c++
 101 -Wc++26-extensions                      c++
 102 -Wc++2a-compat                          c++
 103 -Wc-binding-type                        fortran
 104 -Wc11-c23-compat                        c compatibility
 105 -Wc90-c99-compat                        c compatibility
 106 -Wc99-c11-compat                        c compatibility
 107 -Wcalloc-transposed-args                enabled by -Wextra
 108 -Wcannot-profile                        default
 109 -Wcast-align                            enabled by -Wcast-align=strict
 110 -Wcast-function-type                    enabled by -Wextra
 111 -Wcast-qual                             FIXME maybe? too much noise; encourages bad changes
 112 -Wcast-result                           D
 113 -Wcatch-value                           c++
 114 -Wcatch-value=<0,3>                     c++
 115 -Wchanges-meaning                       c++
 116 -Wchar-subscripts                       enabled by -Wall
 117 -Wcharacter-truncation                  fortran
 118 -Wchkp                                  deprecated
 119 -Wclass-conversion                      c++ and objc++
 120 -Wclass-memaccess                       c++
 121 -Wclobbered                             enabled by -Wextra
 122 -Wcomma-subscript                       c++ and objc++
 123 -Wcomment                               enabled by -Wall
 124 -Wcomments                              alias for -Wcomment
 125 -Wcompare-distinct-pointer-types        default
 126 -Wcompare-reals                         fortran
 127 -Wcomplain-wrong-lang                   default
 128 -Wconditionally-supported               c++ and objc++
 129 -Wconversion                            FIXME maybe? too much noise; encourages bad changes
 130 -Wcoverage-too-many-conditions          default
 131 -Wconversion-extra                      fortran
 132 -Wconversion-null                       c++ and objc++
 133 -Wcoverage-invalid-line-number          default if --coverage
 134 -Wcoverage-mismatch                     default
 135 -Wcpp                                   default
 136 -Wctad-maybe-unsupported                c++ and objc++
 137 -Wctor-dtor-privacy                     c++
 138 -Wdangling-else                         enabled by -Wparentheses
 139 -Wdangling-pointer                      enabled by -Wall
 140 -Wdangling-pointer=<0,2>                enabled by -Wall
 141 -Wdangling-reference                    c++ and objc++
 142 -Wdeclaration-after-statement           needed only for pre-C99, so obsolete
 143 -Wdeclaration-missing-parameter-type    default
 144 -Wdelete-incomplete                     c++ and objc++
 145 -Wdelete-non-virtual-dtor               c++
 146 -Wdeprecated                            default
 147 -Wdeprecated-copy                       c++ and objc++
 148 -Wdeprecated-copy-dtor                  c++ and objc++
 149 -Wdeprecated-declarations               default
 150 -Wdeprecated-enum-enum-conversion       c++ and objc++
 151 -Wdeprecated-enum-float-conversion      c++ and objc++
 152 -Wdesignated-init                       default
 153 -Wdiscarded-array-qualifiers            default
 154 -Wdiscarded-qualifiers                  default
 155 -Wdo-subscript                          fortran
 156 -Wdiv-by-zero                           default
 157 -Wduplicate-decl-specifier              enabled by -Wall
 158 -Weffc++                                c++
 159 -Welaborated-enum-base                  default, c++11+
 160 -Wempty-body                            enabled by -Wextra
 161 -Wenum-compare                          enabled by -Wall
 162 -Wenum-conversion                       enabled by -Wextra
 163 -Wenum-int-mismatch                     enabled by -Wall
 164 -Wendif-labels                          default
 165 -Werror-implicit-function-declaration   deprecated
 166 -Wexceptions                            c++ and objc++
 167 -Wexpansion-to-defined                  enabled by -Wextra
 168 -Wextra-semi                            c++
 169 -Wfloat-conversion                      FIXME maybe? borderline.  some will want this
 170 -Wfloat-equal                           FIXME maybe? borderline.  some will want this
 171 -Wformat                                covered by -Wformat=2
 172 -Wformat-contains-nul                   default
 173 -Wformat-diag                           enabled by -Wformat=2
 174 -Wformat-extra-args                     enabled by -Wformat=2
 175 -Wformat-nonliteral                     enabled by -Wformat=2
 176 -Wformat-overflow<0,2>                  gcc --help=warnings artifact
 177 -Wformat-overflow=<0,2>                 handled specially by gl_MANYWARN_ALL_GCC
 178 -Wformat-security                       enabled by -Wformat=2
 179 -Wformat-truncation                     covered by -Wformat-truncation=2
 180 -Wformat-truncation=<0,2>               handled specially by gl_MANYWARN_ALL_GCC
 181 -Wformat-y2k                            enabled by -Wformat=2
 182 -Wformat-zero-length                    enabled by -Wformat=2
 183 -Wformat=<0,2>                          gcc --help=warnings artifact
 184 -Wframe-address                         enabled by -Wall
 185 -Wframe-larger-than=<byte-size>         FIXME: choose something sane?
 186 -Wfree-nonheap-object                   default
 187 -Wfunction-elimination                  fortran
 188 -Wglobal-module                         default, c++ and objc++
 189 -Whardened                              default
 190 -Whsa                                   default
 191 -Wif-not-aligned                        default
 192 -Wignored-attributes                    default
 193 -Wignored-qualifiers                    enabled by -Wextra
 194 -Wimplicit                              enabled by -Wall
 195 -Wimplicit-fallthrough                  covered by -Wimplicit-fallthrough=2
 196 -Wimplicit-fallthrough=<0,5>            handled specially by gl_MANYWARN_ALL_GCC
 197 -Wimplicit-function-declaration         enabled by -Wimplicit
 198 -Wimplicit-int                          enabled by -Wimplicit
 199 -Wimplicit-interface                    fortran
 200 -Wimplicit-procedure                    fortran
 201 -Winaccessible-base                     c++ and objc++
 202 -Wincompatible-pointer-types            default
 203 -Winfinite-recursion                    enabled by -Wall
 204 -Winherited-variadic-ctor               c++
 205 -Winit-list-lifetime                    c++ and objc++
 206 -Wint-conversion                        default
 207 -Wint-in-bool-context                   enabled by -Wall
 208 -Wint-to-pointer-cast                   default
 209 -Winteger-division                      fortran
 210 -Winterference-size                     c++
 211 -Wintrinsic-shadow                      fortran
 212 -Wintrinsics-std                        fortran
 213 -Winvalid-constexpr                     c++
 214 -Winvalid-imported-macros               c++ and objc++
 215 -Winvalid-memory-model                  default
 216 -Winvalid-offsetof                      c++ and objc++
 217 -Winvalid-utf8                          enabled by -finput-charset=UTF-8
 218 -Wjump-misses-init                      only useful for code meant to be compiled by a C++ compiler
 219 -Wlarger-than-                          gcc --help=warnings artifact
 220 -Wlarger-than=<byte-size>               FIXME: choose something sane?
 221 -Wline-truncation                       fortran
 222 -Wliteral-suffix                        c++ and objc++
 223 -Wlogical-not-parentheses               enabled by -Wall
 224 -Wlong-long                             obsolescent
 225 -Wlto-type-mismatch                     c++ and objc++
 226 -Wmain                                  enabled by -Wall
 227 -Wmaybe-uninitialized                   enabled by -Wall or -Wextra
 228 -Wmemset-elt-size                       enabled by -Wall
 229 -Wmemset-transposed-args                enabled by -Wall
 230 -Wmisleading-indentation                enabled by -Wall
 231 -Wmismatched-dealloc                    default
 232 -Wmismatched-new-delete                 default, c++ and objc++
 233 -Wmismatched-special-enum               d
 234 -Wmismatched-tags                       c++ and objc++
 235 -Wmissing-attributes                    enabled by -Wall
 236 -Wmissing-braces                        enabled by -Wall
 237 -Wmissing-field-initializers            enabled by -Wextra
 238 -Wmissing-format-attribute              obsolescent
 239 -Wmissing-noreturn                      obsolescent
 240 -Wmissing-parameter-type                enabled by -Wextra
 241 -Wmissing-profile                       default
 242 -Wmissing-requires                      default, c++
 243 -Wmissing-template-keyword              default, c++
 244 -Wmultichar                             default
 245 -Wmultiple-inheritance                  c++ and objc++
 246 -Wmultistatement-macros                 enabled by -Wall
 247 -Wnamespaces                            c++
 248 -Wnarrowing                             enabled by -Wall
 249 -Wno-alloc-size-larger-than             see -Walloc-size-larger-than
 250 -Wno-alloca-larger-than                 see -Walloca-larger-than
 251 -Wno-frame-larger-than                  see -Wframe-larger-than
 252 -Wno-larger-than                        see -Wlarger-than
 253 -Wno-stack-usage                        see -Wstack-usage
 254 -Wno-vla-larger-than                    see -Wvla-larger-than
 255 -Wnoexcept                              c++
 256 -Wnoexcept-type                         c++
 257 -Wnon-template-friend                   c++
 258 -Wnon-virtual-dtor                      c++
 259 -Wnonnull                               enabled by -Wall or -Wformat
 260 -Wnonnull-compare                       enabled by -Wall
 261 -Wnormalized                            default
 262 -Wnormalized=[none|id|nfc|nfkc]         defaults to nfc
 263 -WNSObject-attribute                    objc and objc++
 264 -Wobjc-root-class                       objc and objc++
 265 -Wodr                                   default
 266 -Wold-style-cast                        c++ and objc++
 267 -Wold-style-declaration                 enabled by -Wextra
 268 -Wopenacc-parallelism                   OpenACC
 269 -Wopenmp                                default
 270 -Woverflow                              default
 271 -Woverloaded-virtual                    c++
 272 -Woverloaded-virtual=<0,2>              c++
 273 -Woverride-init                         enabled by -Wextra
 274 -Woverride-init-side-effects            c++ and objc++
 275 -Woverwrite-recursive                   fortran
 276 -Wpacked-bitfield-compat                default
 277 -Wpacked-not-aligned                    enabled by -Wall
 278 -Wpadded                                FIXME maybe?  warns about "stabil" member in /usr/include/bits/timex.h
 279 -Wparentheses                           enabled by -Wall
 280 -Wpedantic                              FIXME: too strict?
 281 -Wpessimizing-move                      c++ and objc++
 282 -Wplacement-new                         c++
 283 -Wplacement-new=<0,2>                   c++
 284 -Wpmf-conversions                       c++ and objc++
 285 -Wpointer-compare                       default
 286 -Wpointer-sign                          enabled by -Wall
 287 -Wpointer-to-int-cast                   default
 288 -Wpragmas                               default
 289 -Wprio-ctor-dtor                        c++
 290 -Wproperty-assign-default               objc++
 291 -Wprotocol                              objc++
 292 -Wpsabi                                 default
 293 -Wrange-loop-construct                  c++ and objc++
 294 -Wreal-q-constant                       fortran
 295 -Wrealloc-lhs                           fortran
 296 -Wrealloc-lhs-all                       fortran
 297 -Wredundant-decls                       FIXME maybe? many _gl_cxxalias_dummy FPs
 298 -Wredundant-move                        c++ and objc++
 299 -Wredundant-tags                        c++ and objc++
 300 -Wregister                              c++ and objc++
 301 -Wreorder                               c++ and objc++
 302 -Wrestrict                              enabled by -Wall
 303 -Wreturn-local-addr                     default
 304 -Wreturn-mismatch                       default
 305 -Wreturn-type                           enabled by -Wall
 306 -Wscalar-storage-order                  default
 307 -Wselector                              objc and objc++
 308 -Wsequence-point                        enabled by -Wall
 309 -Wself-move                             c++ and objc++
 310 -Wshadow-compatible-local               covered by -Wshadow
 311 -Wshadow-ivar                           objc
 312 -Wshadow-local                          covered by -Wshadow
 313 -Wshadow=compatible-local               covered by -Wshadow
 314 -Wshadow=global                         covered by -Wshadow
 315 -Wshadow=local                          covered by -Wshadow
 316 -Wshift-count-negative                  default
 317 -Wshift-count-overflow                  default
 318 -Wshift-negative-value                  enabled by -Wextra
 319 -Wshift-overflow                        covered by -Wshift-overflow=2
 320 -Wshift-overflow=<0,2>                  gcc --help=warnings artifact
 321 -Wsign-compare                          enabled by -Wextra
 322 -Wsign-conversion                       FIXME maybe? borderline.  some will want this
 323 -Wsign-promo                            c++ and objc++
 324 -Wsized-deallocation                    c++ and objc++
 325 -Wsizeof-array-argument                 default
 326 -Wsizeof-array-div                      enabled by -Wall
 327 -Wsizeof-pointer-div                    enabled by -Wall
 328 -Wsizeof-pointer-memaccess              enabled by -Wall
 329 -Wstack-usage=<byte-size>               FIXME: choose something sane?
 330 -Wstrict-aliasing                       enabled by -Wall
 331 -Wstrict-aliasing=<0,3>                 FIXME: choose something sane?
 332 -Wstrict-null-sentinel                  c++ and objc++
 333 -Wstrict-overflow=<0,5>                 FIXME: choose something sane?
 334 -Wstrict-selector-match                 objc and objc++
 335 -Wstring-compare                        enabled by -Wextra
 336 -Wstringop-overflow                     covered by -Wstringop-overflow=2
 337 -Wstringop-overflow=<0,4>               defaults to 2
 338 -Wstringop-overread                     default
 339 -Wstringop-truncation                   default
 340 -Wsubobject-linkage                     c++ and objc++
 341 -Wsuggest-attribute=returns_nonnull     https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114833
 342 -Wsuggest-override                      c++ and objc++
 343 -Wsurprising                            fortran
 344 -Wswitch                                enabled by -Wall
 345 -Wswitch-bool                           default
 346 -Wswitch-default                        https://lists.gnu.org/r/bug-gnulib/2018-05/msg00179.html
 347 -Wswitch-enum                           FIXME maybe? borderline.  some will want this
 348 -Wswitch-outside-range                  default
 349 -Wswitch-unreachable                    default
 350 -Wsynth                                 deprecated
 351 -Wtabs                                  fortran
 352 -Wtarget-lifetime                       fortran
 353 -Wtautological-compare                  enabled by -Wall
 354 -Wtemplate-id-cdtor                     default, c++ and objc++
 355 -Wtemplates                             c++ and objc++
 356 -Wterminate                             c++ and objc++
 357 -Wtraditional                           obsolescent
 358 -Wtraditional-conversion                obsolescent
 359 -Wtrigraphs                             enabled by -Wall
 360 -Wtrivial-auto-var-init                 subsumed by -Wmaybe-uninitialized
 361 -Wtsan                                  default
 362 -Wtype-limits                           enabled by -Wextra
 363 -Wundeclared-selector                   objc and objc++
 364 -Wundef                                 FIXME maybe? too many false positives
 365 -Wundefined-do-loop                     fortran
 366 -Wunderflow                             fortran
 367 -Wunicode                               default
 368 -Wunreachable-code                      obsolescent no-op
 369 -Wunsuffixed-float-constants            triggers warning in gnulib's timespec.h
 370 -Wunused                                enabled by -Wall
 371 -Wunused-but-set-parameter              enabled by -Wunused
 372 -Wunused-but-set-variable               enabled by -Wunused
 373 -Wunused-const-variable                 covered by -Wunused-const-variable=2
 374 -Wunused-const-variable=<0,2>           gcc --help=warnings artifact
 375 -Wunused-dummy-argument                 fortran
 376 -Wunused-function                       enabled by -Wunused
 377 -Wunused-label                          enabled by -Wunused
 378 -Wunused-local-typedefs                 enabled by -Wunused
 379 -Wunused-parameter                      enabled by -Wunused
 380 -Wunused-result                         enabled by -Wunused
 381 -Wunused-value                          enabled by -Wunused
 382 -Wunused-variable                       enabled by -Wunused
 383 -Wuse-after-free                        handled specially by gl_MANYWARN_ALL_GCC
 384 -Wuse-after-free=<0,3>                  handled specially by gl_MANYWARN_ALL_GCC
 385 -Wuse-without-only                      fortran
 386 -Wuseless-cast                          c++ and objc++
 387 -Wvarargs                               default
 388 -Wvexing-parse                          c++ and objc++
 389 -Wvirtual-inheritance                   c++
 390 -Wvirtual-move-assign                   c++
 391 -Wvla-larger-than=<number>              handled specially by gl_MANYWARN_ALL_GCC
 392 -Wvla-parameter                         enabled by -Wall
 393 -Wvolatile                              c++ and objc++
 394 -Wvolatile-register-var                 enabled by -Wall
 395 -Wxor-used-as-pow                       default
 396 -Wzero-as-null-pointer-constant         c++ and objc++
 397 -Wzero-length-bounds                    enabled by -Wall
 398 -Wzerotrip                              fortran
 399 -frequire-return-statement              go