gcc/builtin-attrs.def

   1 /* Copyright (C) 2001-2017 Free Software Foundation, Inc.
   2    Contributed by Joseph Myers <jsm28@cam.ac.uk>.
   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
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  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.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 /* This header provides a declarative way of describing the attributes
  21    that are applied to some built-in functions by default.  Attributes
  22    that are meant to be used by user-defined functions but aren't used
  23    by any built-ins, or attributes that apply to types or variables
  24    but not to functions need not and should not be defined here.
  25
  26    Before including this header, you must define the following macros.
  27    In each case where there is an ENUM, it is an identifier used to
  28    reference the tree in subsequent definitions.
  29
  30    DEF_ATTR_NULL_TREE (ENUM)
  31
  32      Constructs a NULL_TREE.
  33
  34    DEF_ATTR_INT (ENUM, VALUE)
  35
  36      Constructs an INTEGER_CST with value VALUE (an integer representable
  37      in HOST_WIDE_INT).
  38
  39    DEF_ATTR_IDENT (ENUM, STRING)
  40
  41      Constructs an IDENTIFIER_NODE for STRING.
  42
  43    DEF_ATTR_TREE_LIST (ENUM, PURPOSE, VALUE, CHAIN)
  44
  45      Constructs a TREE_LIST with given PURPOSE, VALUE and CHAIN (given
  46      as previous ENUM names).  */
  47
  48 DEF_ATTR_NULL_TREE (ATTR_NULL)
  49
  50 /* Construct a tree for a given integer and a list containing it.  */
  51 #define DEF_ATTR_FOR_INT(VALUE)                                 \
  52   DEF_ATTR_INT (ATTR_##VALUE, VALUE)                    \
  53   DEF_ATTR_TREE_LIST (ATTR_LIST_##VALUE, ATTR_NULL,     \
  54                       ATTR_##VALUE, ATTR_NULL)
  55 DEF_ATTR_FOR_INT (0)
  56 DEF_ATTR_FOR_INT (1)
  57 DEF_ATTR_FOR_INT (2)
  58 DEF_ATTR_FOR_INT (3)
  59 DEF_ATTR_FOR_INT (4)
  60 DEF_ATTR_FOR_INT (5)
  61 DEF_ATTR_FOR_INT (6)
  62 #undef DEF_ATTR_FOR_INT
  63
  64 /* Construct a tree for a given string and a list containing it.  */
  65 #define DEF_ATTR_FOR_STRING(ENUM, VALUE)                                        \
  66   DEF_ATTR_STRING (ATTR_##ENUM, VALUE)                  \
  67   DEF_ATTR_TREE_LIST (ATTR_LIST_##ENUM, ATTR_NULL,      \
  68                       ATTR_##ENUM, ATTR_NULL)
  69 DEF_ATTR_FOR_STRING (STR1, "1")
  70 #undef DEF_ATTR_FOR_STRING
  71
  72 /* Construct a tree for a list of two integers.  */
  73 #define DEF_LIST_INT_INT(VALUE1, VALUE2)                                 \
  74   DEF_ATTR_TREE_LIST (ATTR_LIST_##VALUE1##_##VALUE2, ATTR_NULL,          \
  75                       ATTR_##VALUE1, ATTR_LIST_##VALUE2)
  76 DEF_LIST_INT_INT (1,0)
  77 DEF_LIST_INT_INT (1,2)
  78 DEF_LIST_INT_INT (1,3)
  79 DEF_LIST_INT_INT (1,4)
  80 DEF_LIST_INT_INT (1,5)
  81 DEF_LIST_INT_INT (2,0)
  82 DEF_LIST_INT_INT (2,3)
  83 DEF_LIST_INT_INT (3,0)
  84 DEF_LIST_INT_INT (3,4)
  85 DEF_LIST_INT_INT (4,0)
  86 DEF_LIST_INT_INT (4,5)
  87 DEF_LIST_INT_INT (5,0)
  88 DEF_LIST_INT_INT (5,6)
  89 #undef DEF_LIST_INT_INT
  90
  91 /* Construct trees for identifiers used in built-in function attributes.
  92    The construction contributes to startup costs so only attributes that
  93    are used to define built-ins should be defined here.  */
  94 DEF_ATTR_IDENT (ATTR_ALLOC_SIZE, "alloc_size")
  95 DEF_ATTR_IDENT (ATTR_COLD, "cold")
  96 DEF_ATTR_IDENT (ATTR_CONST, "const")
  97 DEF_ATTR_IDENT (ATTR_FORMAT, "format")
  98 DEF_ATTR_IDENT (ATTR_FORMAT_ARG, "format_arg")
  99 DEF_ATTR_IDENT (ATTR_MALLOC, "malloc")
 100 DEF_ATTR_IDENT (ATTR_NONNULL, "nonnull")
 101 DEF_ATTR_IDENT (ATTR_NORETURN, "noreturn")
 102 DEF_ATTR_IDENT (ATTR_NOTHROW, "nothrow")
 103 DEF_ATTR_IDENT (ATTR_LEAF, "leaf")
 104 DEF_ATTR_IDENT (ATTR_FNSPEC, "fn spec")
 105 DEF_ATTR_IDENT (ATTR_PRINTF, "printf")
 106 DEF_ATTR_IDENT (ATTR_ASM_FPRINTF, "asm_fprintf")
 107 DEF_ATTR_IDENT (ATTR_GCC_DIAG, "gcc_diag")
 108 DEF_ATTR_IDENT (ATTR_GCC_CDIAG, "gcc_cdiag")
 109 DEF_ATTR_IDENT (ATTR_GCC_CXXDIAG, "gcc_cxxdiag")
 110 DEF_ATTR_IDENT (ATTR_PURE, "pure")
 111 DEF_ATTR_IDENT (ATTR_NOVOPS, "no vops")
 112 DEF_ATTR_IDENT (ATTR_SCANF, "scanf")
 113 DEF_ATTR_IDENT (ATTR_SENTINEL, "sentinel")
 114 DEF_ATTR_IDENT (ATTR_STRFMON, "strfmon")
 115 DEF_ATTR_IDENT (ATTR_STRFTIME, "strftime")
 116 DEF_ATTR_IDENT (ATTR_TYPEGENERIC, "type generic")
 117 DEF_ATTR_IDENT (ATTR_TM_REGPARM, "*tm regparm")
 118 DEF_ATTR_IDENT (ATTR_TM_TMPURE, "transaction_pure")
 119 DEF_ATTR_IDENT (ATTR_RETURNS_TWICE, "returns_twice")
 120 DEF_ATTR_IDENT (ATTR_RETURNS_NONNULL, "returns_nonnull")
 121
 122 DEF_ATTR_TREE_LIST (ATTR_NOVOPS_LIST, ATTR_NOVOPS, ATTR_NULL, ATTR_NULL)
 123
 124 DEF_ATTR_TREE_LIST (ATTR_NOVOPS_LEAF_LIST, ATTR_LEAF, ATTR_NULL, ATTR_NOVOPS_LIST)
 125
 126 DEF_ATTR_TREE_LIST (ATTR_LEAF_LIST, ATTR_LEAF, ATTR_NULL, ATTR_NULL)
 127
 128 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_LIST, ATTR_NOTHROW, ATTR_NULL, ATTR_NULL)
 129
 130 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_LEAF_LIST, ATTR_LEAF, ATTR_NULL, ATTR_NOTHROW_LIST)
 131
 132 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_LIST, ATTR_CONST,        \
 133                         ATTR_NULL, ATTR_NOTHROW_LIST)
 134 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_LEAF_LIST, ATTR_CONST,   \
 135                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 136 DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_LIST, ATTR_PURE,          \
 137                         ATTR_NULL, ATTR_NOTHROW_LIST)
 138 DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_LEAF_LIST, ATTR_PURE,     \
 139                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 140 DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LIST, ATTR_NORETURN,  \
 141                         ATTR_NULL, ATTR_NOTHROW_LIST)
 142 DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LEAF_LIST, ATTR_NORETURN,\
 143                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 144 DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LEAF_COLD_LIST, ATTR_COLD,\
 145                         ATTR_NULL, ATTR_NORETURN_NOTHROW_LEAF_LIST)
 146 DEF_ATTR_TREE_LIST (ATTR_RT_NOTHROW_LEAF_LIST, ATTR_RETURNS_TWICE,\
 147                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 148 DEF_ATTR_TREE_LIST (ATTR_COLD_NOTHROW_LEAF_LIST, ATTR_COLD,\
 149                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 150 DEF_ATTR_TREE_LIST (ATTR_COLD_NORETURN_NOTHROW_LEAF_LIST, ATTR_COLD,\
 151                         ATTR_NULL, ATTR_NORETURN_NOTHROW_LEAF_LIST)
 152 DEF_ATTR_TREE_LIST (ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST, ATTR_CONST,\
 153                         ATTR_NULL, ATTR_NORETURN_NOTHROW_LEAF_LIST)
 154 DEF_ATTR_TREE_LIST (ATTR_CONST_NORETURN_NOTHROW_LEAF_COLD_LIST, ATTR_COLD,\
 155                         ATTR_NULL, ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST)
 156 DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_LIST, ATTR_MALLOC,      \
 157                         ATTR_NULL, ATTR_NOTHROW_LIST)
 158 DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_LEAF_LIST, ATTR_MALLOC, \
 159                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 160 DEF_ATTR_TREE_LIST (ATTR_SENTINEL_NOTHROW_LIST, ATTR_SENTINEL,  \
 161                         ATTR_NULL, ATTR_NOTHROW_LIST)
 162 DEF_ATTR_TREE_LIST (ATTR_SENTINEL_NOTHROW_LEAF_LIST, ATTR_SENTINEL,     \
 163                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 164 DEF_ATTR_TREE_LIST (ATTR_COLD_CONST_NORETURN_NOTHROW_LEAF_LIST, ATTR_CONST,\
 165                         ATTR_NULL, ATTR_COLD_NORETURN_NOTHROW_LEAF_LIST)
 166
 167 /* Allocation functions like malloc and realloc whose first argument
 168    with _SIZE_1, or second argument with _SIZE_2, specifies the size
 169    of the allocated object.  */
 170 DEF_ATTR_TREE_LIST (ATTR_MALLOC_SIZE_1_NOTHROW_LIST, ATTR_ALLOC_SIZE,   \
 171                         ATTR_LIST_1, ATTR_MALLOC_NOTHROW_LIST)
 172 DEF_ATTR_TREE_LIST (ATTR_ALLOC_SIZE_2_NOTHROW_LIST, ATTR_ALLOC_SIZE,    \
 173                         ATTR_LIST_2, ATTR_MALLOC_NOTHROW_LIST)
 174 DEF_ATTR_TREE_LIST (ATTR_MALLOC_SIZE_1_NOTHROW_LEAF_LIST, ATTR_ALLOC_SIZE, \
 175                         ATTR_LIST_1, ATTR_MALLOC_NOTHROW_LEAF_LIST)
 176 /* Alloca is just like malloc except that it never returns null.  */
 177 DEF_ATTR_TREE_LIST (ATTR_ALLOCA_SIZE_1_NOTHROW_LEAF_LIST, ATTR_RETURNS_NONNULL,
 178                     ATTR_NULL, ATTR_MALLOC_SIZE_1_NOTHROW_LEAF_LIST)
 179
 180 /* Allocation functions like calloc the product of whose first two arguments
 181    specifies the size of the allocated object.  */
 182 DEF_ATTR_TREE_LIST (ATTR_MALLOC_SIZE_1_2_NOTHROW_LEAF_LIST, ATTR_ALLOC_SIZE, \
 183                         ATTR_LIST_1_2, ATTR_MALLOC_NOTHROW_LEAF_LIST)
 184
 185 /* Allocation functions like realloc whose second argument specifies
 186    the size of the allocated object.  */
 187 DEF_ATTR_TREE_LIST (ATTR_ALLOC_SIZE_2_NOTHROW_LEAF_LIST, ATTR_ALLOC_SIZE, \
 188                         ATTR_LIST_2, ATTR_NOTHROW_LEAF_LIST)
 189
 190 /* Functions whose pointer parameter(s) are all nonnull.  */
 191 DEF_ATTR_TREE_LIST (ATTR_NONNULL_LIST, ATTR_NONNULL, ATTR_NULL, ATTR_NULL)
 192 /* Functions whose first parameter is a nonnull pointer.  */
 193 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1, ATTR_NONNULL, ATTR_LIST_1, ATTR_NULL)
 194 /* Functions whose second parameter is a nonnull pointer.  */
 195 DEF_ATTR_TREE_LIST (ATTR_NONNULL_2, ATTR_NONNULL, ATTR_LIST_2, ATTR_NULL)
 196 /* Functions whose third parameter is a nonnull pointer.  */
 197 DEF_ATTR_TREE_LIST (ATTR_NONNULL_3, ATTR_NONNULL, ATTR_LIST_3, ATTR_NULL)
 198 /* Nothrow functions with the sentinel(1) attribute. */
 199 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_SENTINEL_1, ATTR_SENTINEL, ATTR_LIST_1, \
 200                         ATTR_NOTHROW_LIST)
 201 /* Nothrow functions whose pointer parameter(s) are all nonnull.  */
 202 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL, ATTR_NONNULL, ATTR_NULL, \
 203                         ATTR_NOTHROW_LIST)
 204 /* Nothrow leaf functions whose pointer parameter(s) are all nonnull.  */
 205 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_LEAF, ATTR_NONNULL, ATTR_NULL, \
 206                         ATTR_NOTHROW_LEAF_LIST)
 207 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_LEAF_LIST, ATTR_LEAF, ATTR_NULL, ATTR_NOTHROW_NONNULL_LEAF)
 208 /* Nothrow functions whose first parameter is a nonnull pointer.  */
 209 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1, ATTR_NONNULL, ATTR_LIST_1, \
 210                         ATTR_NOTHROW_LIST)
 211 /* Nothrow functions whose second parameter is a nonnull pointer.  */
 212 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_2, ATTR_NONNULL, ATTR_LIST_2, \
 213                         ATTR_NOTHROW_LIST)
 214 /* Nothrow functions whose third parameter is a nonnull pointer.  */
 215 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_3, ATTR_NONNULL, ATTR_LIST_3, \
 216                         ATTR_NOTHROW_LIST)
 217 /* Nothrow functions whose fourth parameter is a nonnull pointer.  */
 218 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_4, ATTR_NONNULL, ATTR_LIST_4, \
 219                         ATTR_NOTHROW_LIST)
 220 /* Nothrow functions whose fifth parameter is a nonnull pointer.  */
 221 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_5, ATTR_NONNULL, ATTR_LIST_5, \
 222                         ATTR_NOTHROW_LIST)
 223
 224 /* Same as ATTR_NONNULL_1.  */
 225 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_1, ATTR_NONNULL, ATTR_LIST_1, ATTR_NULL)
 226 /* Functions like {v,}fprintf whose first and second parameters are
 227    nonnull pointers.  As cancellation points the functions are not
 228    nothrow.  */
 229 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_2, ATTR_NONNULL, ATTR_LIST_1_2, ATTR_NULL)
 230 /* The following don't have {v,}fprintf forms.  They exist only to
 231    make it possible to declare {v,}{f,s}printf attributes using
 232    the same macro.  */
 233 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_3, ATTR_NONNULL, ATTR_LIST_1_3, ATTR_NULL)
 234 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_4, ATTR_NONNULL, ATTR_LIST_1_4, ATTR_NULL)
 235 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_5, ATTR_NONNULL, ATTR_LIST_1_5, ATTR_NULL)
 236
 237 /* Same as ATTR_NOTHROW_NONNULL_1.  */
 238 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_1, ATTR_NONNULL, ATTR_LIST_1,
 239                     ATTR_NOTHROW_LIST)
 240 /* Nothrow functions like {v,}sprintf whose first and second parameters
 241    are nonnull pointers.  */
 242 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_2, ATTR_NONNULL, ATTR_LIST_1_2, \
 243                     ATTR_NOTHROW_LIST)
 244 /* Nothrow functions like {v,}snprintf whose first and third parameters
 245    are nonnull pointers.  */
 246 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_3, ATTR_NONNULL, ATTR_LIST_1_3, \
 247                     ATTR_NOTHROW_LIST)
 248 /* Nothrow functions like {v,}sprintf_chk whose first and fourth parameters
 249    are nonnull pointers.  */
 250 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_4, ATTR_NONNULL, ATTR_LIST_1_4, \
 251                     ATTR_NOTHROW_LIST)
 252 /* Nothrow functions like {v,}snprintf_chk whose first and fifth parameters
 253    are nonnull pointers.  */
 254 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_5, ATTR_NONNULL, ATTR_LIST_1_5, \
 255                     ATTR_NOTHROW_LIST)
 256
 257 /* Nothrow leaf functions which are type-generic.  */
 258 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_TYPEGENERIC_LEAF, ATTR_TYPEGENERIC, ATTR_NULL, \
 259                         ATTR_NOTHROW_LEAF_LIST)
 260 /* Nothrow nonnull leaf functions that are type-generic.  */
 261 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_TYPEGENERIC_LEAF,
 262                     ATTR_TYPEGENERIC, ATTR_NULL,
 263                     ATTR_NOTHROW_NONNULL_LEAF)
 264 /* Nothrow const functions whose pointer parameter(s) are all nonnull.  */
 265 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_NONNULL, ATTR_CONST, ATTR_NULL, \
 266                         ATTR_NOTHROW_NONNULL)
 267 /* Nothrow leaf functions whose pointer parameter(s) are all nonnull,
 268    and which return their first argument.  */
 269 DEF_ATTR_TREE_LIST (ATTR_RET1_NOTHROW_NONNULL_LEAF, ATTR_FNSPEC, ATTR_LIST_STR1, \
 270                         ATTR_NOTHROW_NONNULL_LEAF)
 271 /* Nothrow leaf functions whose pointer parameter(s) are all nonnull,
 272    and return value is also nonnull.  */
 273 DEF_ATTR_TREE_LIST (ATTR_RETNONNULL_NOTHROW_LEAF, ATTR_RETURNS_NONNULL, ATTR_NULL, \
 274                         ATTR_NOTHROW_NONNULL_LEAF)
 275 /* Nothrow const leaf functions whose pointer parameter(s) are all nonnull.  */
 276 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_NONNULL_LEAF, ATTR_CONST, ATTR_NULL, \
 277                         ATTR_NOTHROW_NONNULL_LEAF)
 278 /* Nothrow const functions which are type-generic.  */
 279 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_TYPEGENERIC, ATTR_TYPEGENERIC, ATTR_NULL, \
 280                         ATTR_CONST_NOTHROW_LIST)
 281 /* Nothrow const leaf functions which are type-generic.  */
 282 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_TYPEGENERIC_LEAF, ATTR_TYPEGENERIC, ATTR_NULL, \
 283                         ATTR_CONST_NOTHROW_LEAF_LIST)
 284 /* Nothrow pure functions whose pointer parameter(s) are all nonnull.  */
 285 DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_NONNULL, ATTR_PURE, ATTR_NULL, \
 286                         ATTR_NOTHROW_NONNULL)
 287 /* Nothrow pure leaf functions whose pointer parameter(s) are all nonnull.  */
 288 DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_NONNULL_LEAF, ATTR_PURE, ATTR_NULL, \
 289                         ATTR_NOTHROW_NONNULL_LEAF)
 290 /* Nothrow malloc functions whose pointer parameter(s) are all nonnull.  */
 291 DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_NONNULL, ATTR_MALLOC, ATTR_NULL, \
 292                         ATTR_NOTHROW_NONNULL)
 293 /* Nothrow malloc leaf functions whose pointer parameter(s) are all nonnull.  */
 294 DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_NONNULL_LEAF, ATTR_MALLOC, ATTR_NULL, \
 295                         ATTR_NOTHROW_NONNULL_LEAF)
 296
 297 /* Construct a tree for the format attribute (and implicitly nonnull).  */
 298 #define DEF_FORMAT_ATTRIBUTE(TYPE, FA, VALUES)                           \
 299   DEF_ATTR_TREE_LIST (ATTR_##TYPE##_##VALUES, ATTR_NULL,                 \
 300                       ATTR_##TYPE, ATTR_LIST_##VALUES)                   \
 301   DEF_ATTR_TREE_LIST (ATTR_FORMAT_##TYPE##_##VALUES, ATTR_FORMAT,        \
 302                       ATTR_##TYPE##_##VALUES, ATTR_NONNULL_##FA)
 303
 304 /* Construct a tree for the format and nothrow attributes (format
 305    implies nonnull).  */
 306 #define DEF_FORMAT_ATTRIBUTE_NOTHROW(TYPE, FA, VALUES)                   \
 307   DEF_ATTR_TREE_LIST (ATTR_##TYPE##_##VALUES, ATTR_NULL,                 \
 308                       ATTR_##TYPE, ATTR_LIST_##VALUES)                   \
 309   DEF_ATTR_TREE_LIST (ATTR_FORMAT_##TYPE##_NOTHROW_##VALUES, ATTR_FORMAT,\
 310                       ATTR_##TYPE##_##VALUES, ATTR_NOTHROW_NONNULL_##FA)
 311
 312 /* Construct one tree for the format attribute and another for the format
 313    and nothrow attributes (in both cases format implies nonnull).  */
 314 #define DEF_FORMAT_ATTRIBUTE_BOTH(TYPE, FA, VALUES)                      \
 315   DEF_ATTR_TREE_LIST (ATTR_##TYPE##_##VALUES, ATTR_NULL,                 \
 316                       ATTR_##TYPE, ATTR_LIST_##VALUES)                   \
 317   DEF_ATTR_TREE_LIST (ATTR_FORMAT_##TYPE##_##VALUES, ATTR_FORMAT,        \
 318                       ATTR_##TYPE##_##VALUES, ATTR_NONNULL_##FA)         \
 319   DEF_ATTR_TREE_LIST (ATTR_FORMAT_##TYPE##_NOTHROW_##VALUES, ATTR_FORMAT,\
 320                       ATTR_##TYPE##_##VALUES, ATTR_NOTHROW_NONNULL_##FA)
 321
 322 /* Construct a pair of trees for the nonnull attribute for the first
 323    argument, plus format printf attribute (format implies nonnull):
 324    the first ordinary and the second nothrow.  */
 325 #define DEF_FORMAT_ATTRIBUTE_NONNULL(TYPE, FA, VALUES)                   \
 326   DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_FORMAT_##TYPE##_##VALUES,           \
 327                       ATTR_FORMAT, ATTR_##TYPE##_##VALUES,               \
 328                       ATTR_NONNULL_1_##FA)                               \
 329   DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_FORMAT_##TYPE##_##VALUES,   \
 330                       ATTR_FORMAT, ATTR_##TYPE##_##VALUES,               \
 331                       ATTR_NOTHROW_NONNULL_1_##FA)
 332
 333 DEF_FORMAT_ATTRIBUTE(PRINTF,1,1_0)
 334 DEF_FORMAT_ATTRIBUTE(PRINTF,1,1_2)
 335 DEF_FORMAT_ATTRIBUTE_BOTH(PRINTF,2,2_0)
 336 DEF_FORMAT_ATTRIBUTE_BOTH(PRINTF,2,2_3)
 337 DEF_FORMAT_ATTRIBUTE_BOTH(PRINTF,3,3_0)
 338 DEF_FORMAT_ATTRIBUTE_BOTH(PRINTF,3,3_4)
 339 DEF_FORMAT_ATTRIBUTE_NOTHROW(PRINTF,4,4_0)
 340 DEF_FORMAT_ATTRIBUTE_NOTHROW(PRINTF,4,4_5)
 341 DEF_FORMAT_ATTRIBUTE_NOTHROW(PRINTF,5,5_0)
 342 DEF_FORMAT_ATTRIBUTE_NOTHROW(PRINTF,5,5_6)
 343
 344 /* Attributes for fprintf(f, f, va).  */
 345 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,1,1_2)
 346 /* Attributes for v{f,s}printf(d, f, va).  vsprintf is nothrow, vfprintf
 347    is not.  */
 348 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,2,2_0)
 349 /* Attributes for {f,s}printf(d, f, ...).  sprintf is nothrow, fprintf
 350    is not.  */
 351 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,2,2_3)
 352 /* Attributes for vprintf_chk.  */
 353 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,3,3_0)
 354 /* Attributes for printf_chk.  */
 355 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,3,3_4)
 356 /* Attributes for v{f,s}printf_chk(d, t, bos, f, va).  vsprintf_chk is
 357    nothrow, vfprintf_chk is not.  */
 358 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,4,4_0)
 359 /* Attributes for {f,s}printf_chk(d, t, bos, f, ...).  sprintf_chk is
 360    nothrow, fprintf_chk is not.  */
 361 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,4,4_5)
 362
 363 DEF_FORMAT_ATTRIBUTE(SCANF,1,1_0)
 364 DEF_FORMAT_ATTRIBUTE(SCANF,1,1_2)
 365 DEF_FORMAT_ATTRIBUTE_BOTH(SCANF,2,2_0)
 366 DEF_FORMAT_ATTRIBUTE_BOTH(SCANF,2,2_3)
 367 DEF_FORMAT_ATTRIBUTE_NOTHROW(STRFTIME,3,3_0)
 368 DEF_FORMAT_ATTRIBUTE_NOTHROW(STRFMON,3,3_4)
 369 #undef DEF_FORMAT_ATTRIBUTE
 370 #undef DEF_FORMAT_ATTRIBUTE_NOTHROW
 371 #undef DEF_FORMAT_ATTRIBUTE_BOTH
 372
 373 /* Transactional memory variants of the above.  */
 374
 375 DEF_ATTR_TREE_LIST (ATTR_TM_NOTHROW_LIST,
 376                     ATTR_TM_REGPARM, ATTR_NULL, ATTR_NOTHROW_LIST)
 377 DEF_ATTR_TREE_LIST (ATTR_TM_TMPURE_NOTHROW_LIST,
 378                     ATTR_TM_TMPURE, ATTR_NULL, ATTR_TM_NOTHROW_LIST)
 379 DEF_ATTR_TREE_LIST (ATTR_TM_PURE_TMPURE_NOTHROW_LIST,
 380                     ATTR_PURE, ATTR_NULL, ATTR_TM_TMPURE_NOTHROW_LIST)
 381 DEF_ATTR_TREE_LIST (ATTR_TM_NORETURN_NOTHROW_LIST,
 382                     ATTR_TM_REGPARM, ATTR_NULL, ATTR_NORETURN_NOTHROW_LIST)
 383 DEF_ATTR_TREE_LIST (ATTR_TM_CONST_NOTHROW_LIST,
 384                     ATTR_TM_REGPARM, ATTR_NULL, ATTR_CONST_NOTHROW_LIST)
 385 DEF_ATTR_TREE_LIST (ATTR_TM_NOTHROW_RT_LIST,
 386                     ATTR_RETURNS_TWICE, ATTR_NULL, ATTR_TM_NOTHROW_LIST)
 387
 388 /* Same attributes used for BUILT_IN_MALLOC except with TM_PURE thrown in.  */
 389 DEF_ATTR_TREE_LIST (ATTR_TMPURE_MALLOC_NOTHROW_LIST,
 390                    ATTR_TM_TMPURE, ATTR_NULL, ATTR_MALLOC_NOTHROW_LIST)
 391 /* Same attributes used for BUILT_IN_FREE except with TM_PURE thrown in.  */
 392 DEF_ATTR_TREE_LIST (ATTR_TMPURE_NOTHROW_LIST,
 393                    ATTR_TM_TMPURE, ATTR_NULL, ATTR_NOTHROW_LIST)
 394
 395 DEF_ATTR_TREE_LIST (ATTR_TMPURE_NOTHROW_LEAF_LIST,
 396                     ATTR_TM_TMPURE, ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 397 DEF_ATTR_TREE_LIST (ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST,
 398                     ATTR_TM_TMPURE, ATTR_NULL, ATTR_NORETURN_NOTHROW_LEAF_LIST)
 399 DEF_ATTR_TREE_LIST (ATTR_TMPURE_NORETURN_NOTHROW_LEAF_COLD_LIST,
 400                     ATTR_COLD, ATTR_NULL,
 401                     ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
 402
 403 /* Construct a tree for a format_arg attribute.  */
 404 #define DEF_FORMAT_ARG_ATTRIBUTE(FA)                                    \
 405   DEF_ATTR_TREE_LIST (ATTR_FORMAT_ARG_##FA, ATTR_FORMAT_ARG,            \
 406                       ATTR_LIST_##FA, ATTR_NOTHROW_NONNULL_##FA)
 407 DEF_FORMAT_ARG_ATTRIBUTE(1)
 408 DEF_FORMAT_ARG_ATTRIBUTE(2)
 409 #undef DEF_FORMAT_ARG_ATTRIBUTE
 410