gcc/builtin-attrs.def

   1 /* Copyright (C) 2001-2019 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_NOVOPS_NOTHROW_LEAF_LIST, ATTR_NOVOPS, \
 133                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 134 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_LIST, ATTR_CONST,        \
 135                         ATTR_NULL, ATTR_NOTHROW_LIST)
 136 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_LEAF_LIST, ATTR_CONST,   \
 137                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 138 DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_LIST, ATTR_PURE,          \
 139                         ATTR_NULL, ATTR_NOTHROW_LIST)
 140 DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_LEAF_LIST, ATTR_PURE,     \
 141                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 142 DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LIST, ATTR_NORETURN,  \
 143                         ATTR_NULL, ATTR_NOTHROW_LIST)
 144 DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LEAF_LIST, ATTR_NORETURN,\
 145                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 146 DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LEAF_COLD_LIST, ATTR_COLD,\
 147                         ATTR_NULL, ATTR_NORETURN_NOTHROW_LEAF_LIST)
 148 DEF_ATTR_TREE_LIST (ATTR_RT_NOTHROW_LEAF_LIST, ATTR_RETURNS_TWICE,\
 149                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 150 DEF_ATTR_TREE_LIST (ATTR_COLD_NOTHROW_LEAF_LIST, ATTR_COLD,\
 151                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 152 DEF_ATTR_TREE_LIST (ATTR_COLD_NORETURN_NOTHROW_LEAF_LIST, ATTR_COLD,\
 153                         ATTR_NULL, ATTR_NORETURN_NOTHROW_LEAF_LIST)
 154 DEF_ATTR_TREE_LIST (ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST, ATTR_CONST,\
 155                         ATTR_NULL, ATTR_NORETURN_NOTHROW_LEAF_LIST)
 156 DEF_ATTR_TREE_LIST (ATTR_CONST_NORETURN_NOTHROW_LEAF_COLD_LIST, ATTR_COLD,\
 157                         ATTR_NULL, ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST)
 158 DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_LIST, ATTR_MALLOC,      \
 159                         ATTR_NULL, ATTR_NOTHROW_LIST)
 160 DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_LEAF_LIST, ATTR_MALLOC, \
 161                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 162 DEF_ATTR_TREE_LIST (ATTR_SENTINEL_NOTHROW_LIST, ATTR_SENTINEL,  \
 163                         ATTR_NULL, ATTR_NOTHROW_LIST)
 164 DEF_ATTR_TREE_LIST (ATTR_SENTINEL_NOTHROW_LEAF_LIST, ATTR_SENTINEL,     \
 165                         ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 166 DEF_ATTR_TREE_LIST (ATTR_COLD_CONST_NORETURN_NOTHROW_LEAF_LIST, ATTR_CONST,\
 167                         ATTR_NULL, ATTR_COLD_NORETURN_NOTHROW_LEAF_LIST)
 168
 169 /* Allocation functions like malloc and realloc whose first argument
 170    with _SIZE_1, or second argument with _SIZE_2, specifies the size
 171    of the allocated object.  */
 172 DEF_ATTR_TREE_LIST (ATTR_MALLOC_SIZE_1_NOTHROW_LIST, ATTR_ALLOC_SIZE,   \
 173                         ATTR_LIST_1, ATTR_MALLOC_NOTHROW_LIST)
 174 DEF_ATTR_TREE_LIST (ATTR_ALLOC_SIZE_2_NOTHROW_LIST, ATTR_ALLOC_SIZE,    \
 175                         ATTR_LIST_2, ATTR_MALLOC_NOTHROW_LIST)
 176 DEF_ATTR_TREE_LIST (ATTR_MALLOC_SIZE_1_NOTHROW_LEAF_LIST, ATTR_ALLOC_SIZE, \
 177                         ATTR_LIST_1, ATTR_MALLOC_NOTHROW_LEAF_LIST)
 178 /* Alloca is just like malloc except that it never returns null.  */
 179 DEF_ATTR_TREE_LIST (ATTR_ALLOCA_SIZE_1_NOTHROW_LEAF_LIST, ATTR_RETURNS_NONNULL,
 180                     ATTR_NULL, ATTR_MALLOC_SIZE_1_NOTHROW_LEAF_LIST)
 181
 182 /* Allocation functions like calloc the product of whose first two arguments
 183    specifies the size of the allocated object.  */
 184 DEF_ATTR_TREE_LIST (ATTR_MALLOC_SIZE_1_2_NOTHROW_LEAF_LIST, ATTR_ALLOC_SIZE, \
 185                         ATTR_LIST_1_2, ATTR_MALLOC_NOTHROW_LEAF_LIST)
 186
 187 /* Allocation functions like realloc whose second argument specifies
 188    the size of the allocated object.  */
 189 DEF_ATTR_TREE_LIST (ATTR_ALLOC_SIZE_2_NOTHROW_LEAF_LIST, ATTR_ALLOC_SIZE, \
 190                         ATTR_LIST_2, ATTR_NOTHROW_LEAF_LIST)
 191
 192 /* Functions whose pointer parameter(s) are all nonnull.  */
 193 DEF_ATTR_TREE_LIST (ATTR_NONNULL_LIST, ATTR_NONNULL, ATTR_NULL, ATTR_NULL)
 194 /* Functions whose first parameter is a nonnull pointer.  */
 195 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1, ATTR_NONNULL, ATTR_LIST_1, ATTR_NULL)
 196 /* Functions whose second parameter is a nonnull pointer.  */
 197 DEF_ATTR_TREE_LIST (ATTR_NONNULL_2, ATTR_NONNULL, ATTR_LIST_2, ATTR_NULL)
 198 /* Functions whose third parameter is a nonnull pointer.  */
 199 DEF_ATTR_TREE_LIST (ATTR_NONNULL_3, ATTR_NONNULL, ATTR_LIST_3, ATTR_NULL)
 200 /* Nothrow functions with the sentinel(1) attribute. */
 201 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_SENTINEL_1, ATTR_SENTINEL, ATTR_LIST_1, \
 202                         ATTR_NOTHROW_LIST)
 203 /* Nothrow functions whose pointer parameter(s) are all nonnull.  */
 204 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL, ATTR_NONNULL, ATTR_NULL, \
 205                         ATTR_NOTHROW_LIST)
 206 /* Nothrow leaf functions whose pointer parameter(s) are all nonnull.  */
 207 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_LEAF, ATTR_NONNULL, ATTR_NULL, \
 208                         ATTR_NOTHROW_LEAF_LIST)
 209 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_LEAF_LIST, ATTR_LEAF, ATTR_NULL, ATTR_NOTHROW_NONNULL_LEAF)
 210 /* Nothrow functions whose first parameter is a nonnull pointer.  */
 211 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1, ATTR_NONNULL, ATTR_LIST_1, \
 212                         ATTR_NOTHROW_LIST)
 213 /* Nothrow functions whose second parameter is a nonnull pointer.  */
 214 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_2, ATTR_NONNULL, ATTR_LIST_2, \
 215                         ATTR_NOTHROW_LIST)
 216 /* Nothrow functions whose third parameter is a nonnull pointer.  */
 217 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_3, ATTR_NONNULL, ATTR_LIST_3, \
 218                         ATTR_NOTHROW_LIST)
 219 /* Nothrow functions whose fourth parameter is a nonnull pointer.  */
 220 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_4, ATTR_NONNULL, ATTR_LIST_4, \
 221                         ATTR_NOTHROW_LIST)
 222 /* Nothrow functions whose fifth parameter is a nonnull pointer.  */
 223 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_5, ATTR_NONNULL, ATTR_LIST_5, \
 224                         ATTR_NOTHROW_LIST)
 225
 226 /* Same as ATTR_NONNULL_1.  */
 227 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_1, ATTR_NONNULL, ATTR_LIST_1, ATTR_NULL)
 228 /* Functions like {v,}fprintf whose first and second parameters are
 229    nonnull pointers.  As cancellation points the functions are not
 230    nothrow.  */
 231 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_2, ATTR_NONNULL, ATTR_LIST_1_2, ATTR_NULL)
 232 /* The following don't have {v,}fprintf forms.  They exist only to
 233    make it possible to declare {v,}{f,s}printf attributes using
 234    the same macro.  */
 235 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_3, ATTR_NONNULL, ATTR_LIST_1_3, ATTR_NULL)
 236 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_4, ATTR_NONNULL, ATTR_LIST_1_4, ATTR_NULL)
 237 DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_5, ATTR_NONNULL, ATTR_LIST_1_5, ATTR_NULL)
 238
 239 /* Same as ATTR_NOTHROW_NONNULL_1.  */
 240 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_1, ATTR_NONNULL, ATTR_LIST_1,
 241                     ATTR_NOTHROW_LIST)
 242 /* Nothrow functions like {v,}sprintf whose first and second parameters
 243    are nonnull pointers.  */
 244 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_2, ATTR_NONNULL, ATTR_LIST_1_2, \
 245                     ATTR_NOTHROW_LIST)
 246 /* Nothrow functions like {v,}snprintf whose first and third parameters
 247    are nonnull pointers.  */
 248 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_3, ATTR_NONNULL, ATTR_LIST_1_3, \
 249                     ATTR_NOTHROW_LIST)
 250 /* Nothrow functions like {v,}sprintf_chk whose first and fourth parameters
 251    are nonnull pointers.  */
 252 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_4, ATTR_NONNULL, ATTR_LIST_1_4, \
 253                     ATTR_NOTHROW_LIST)
 254 /* Nothrow functions like {v,}snprintf_chk whose first and fifth parameters
 255    are nonnull pointers.  */
 256 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_5, ATTR_NONNULL, ATTR_LIST_1_5, \
 257                     ATTR_NOTHROW_LIST)
 258
 259 /* Nothrow leaf functions which are type-generic.  */
 260 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_TYPEGENERIC_LEAF, ATTR_TYPEGENERIC, ATTR_NULL, \
 261                         ATTR_NOTHROW_LEAF_LIST)
 262 /* Nothrow nonnull leaf functions that are type-generic.  */
 263 DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_TYPEGENERIC_LEAF,
 264                     ATTR_TYPEGENERIC, ATTR_NULL,
 265                     ATTR_NOTHROW_NONNULL_LEAF)
 266 /* Nothrow const functions whose pointer parameter(s) are all nonnull.  */
 267 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_NONNULL, ATTR_CONST, ATTR_NULL, \
 268                         ATTR_NOTHROW_NONNULL)
 269 /* Nothrow leaf functions whose pointer parameter(s) are all nonnull,
 270    and which return their first argument.  */
 271 DEF_ATTR_TREE_LIST (ATTR_RET1_NOTHROW_NONNULL_LEAF, ATTR_FNSPEC, ATTR_LIST_STR1, \
 272                         ATTR_NOTHROW_NONNULL_LEAF)
 273 /* Nothrow leaf functions whose pointer parameter(s) are all nonnull,
 274    and return value is also nonnull.  */
 275 DEF_ATTR_TREE_LIST (ATTR_RETNONNULL_NOTHROW_LEAF, ATTR_RETURNS_NONNULL, ATTR_NULL, \
 276                         ATTR_NOTHROW_NONNULL_LEAF)
 277 /* Nothrow const leaf functions whose pointer parameter(s) are all nonnull.  */
 278 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_NONNULL_LEAF, ATTR_CONST, ATTR_NULL, \
 279                         ATTR_NOTHROW_NONNULL_LEAF)
 280 /* Nothrow const functions which are type-generic.  */
 281 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_TYPEGENERIC, ATTR_TYPEGENERIC, ATTR_NULL, \
 282                         ATTR_CONST_NOTHROW_LIST)
 283 /* Nothrow const leaf functions which are type-generic.  */
 284 DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_TYPEGENERIC_LEAF, ATTR_TYPEGENERIC, ATTR_NULL, \
 285                         ATTR_CONST_NOTHROW_LEAF_LIST)
 286 /* Nothrow pure functions whose pointer parameter(s) are all nonnull.  */
 287 DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_NONNULL, ATTR_PURE, ATTR_NULL, \
 288                         ATTR_NOTHROW_NONNULL)
 289 /* Nothrow pure leaf functions whose pointer parameter(s) are all nonnull.  */
 290 DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_NONNULL_LEAF, ATTR_PURE, ATTR_NULL, \
 291                         ATTR_NOTHROW_NONNULL_LEAF)
 292 /* Nothrow malloc functions whose pointer parameter(s) are all nonnull.  */
 293 DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_NONNULL, ATTR_MALLOC, ATTR_NULL, \
 294                         ATTR_NOTHROW_NONNULL)
 295 /* Nothrow malloc leaf functions whose pointer parameter(s) are all nonnull.  */
 296 DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_NONNULL_LEAF, ATTR_MALLOC, ATTR_NULL, \
 297                         ATTR_NOTHROW_NONNULL_LEAF)
 298
 299 /* Construct a tree for the format attribute (and implicitly nonnull).  */
 300 #define DEF_FORMAT_ATTRIBUTE(TYPE, FA, VALUES)                           \
 301   DEF_ATTR_TREE_LIST (ATTR_##TYPE##_##VALUES, ATTR_NULL,                 \
 302                       ATTR_##TYPE, ATTR_LIST_##VALUES)                   \
 303   DEF_ATTR_TREE_LIST (ATTR_FORMAT_##TYPE##_##VALUES, ATTR_FORMAT,        \
 304                       ATTR_##TYPE##_##VALUES, ATTR_NONNULL_##FA)
 305
 306 /* Construct a tree for the format and nothrow attributes (format
 307    implies nonnull).  */
 308 #define DEF_FORMAT_ATTRIBUTE_NOTHROW(TYPE, FA, VALUES)                   \
 309   DEF_ATTR_TREE_LIST (ATTR_##TYPE##_##VALUES, ATTR_NULL,                 \
 310                       ATTR_##TYPE, ATTR_LIST_##VALUES)                   \
 311   DEF_ATTR_TREE_LIST (ATTR_FORMAT_##TYPE##_NOTHROW_##VALUES, ATTR_FORMAT,\
 312                       ATTR_##TYPE##_##VALUES, ATTR_NOTHROW_NONNULL_##FA)
 313
 314 /* Construct one tree for the format attribute and another for the format
 315    and nothrow attributes (in both cases format implies nonnull).  */
 316 #define DEF_FORMAT_ATTRIBUTE_BOTH(TYPE, FA, VALUES)                      \
 317   DEF_ATTR_TREE_LIST (ATTR_##TYPE##_##VALUES, ATTR_NULL,                 \
 318                       ATTR_##TYPE, ATTR_LIST_##VALUES)                   \
 319   DEF_ATTR_TREE_LIST (ATTR_FORMAT_##TYPE##_##VALUES, ATTR_FORMAT,        \
 320                       ATTR_##TYPE##_##VALUES, ATTR_NONNULL_##FA)         \
 321   DEF_ATTR_TREE_LIST (ATTR_FORMAT_##TYPE##_NOTHROW_##VALUES, ATTR_FORMAT,\
 322                       ATTR_##TYPE##_##VALUES, ATTR_NOTHROW_NONNULL_##FA)
 323
 324 /* Construct a pair of trees for the nonnull attribute for the first
 325    argument, plus format printf attribute (format implies nonnull):
 326    the first ordinary and the second nothrow.  */
 327 #define DEF_FORMAT_ATTRIBUTE_NONNULL(TYPE, FA, VALUES)                   \
 328   DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_FORMAT_##TYPE##_##VALUES,           \
 329                       ATTR_FORMAT, ATTR_##TYPE##_##VALUES,               \
 330                       ATTR_NONNULL_1_##FA)                               \
 331   DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_FORMAT_##TYPE##_##VALUES,   \
 332                       ATTR_FORMAT, ATTR_##TYPE##_##VALUES,               \
 333                       ATTR_NOTHROW_NONNULL_1_##FA)
 334
 335 DEF_FORMAT_ATTRIBUTE(PRINTF,1,1_0)
 336 DEF_FORMAT_ATTRIBUTE(PRINTF,1,1_2)
 337 DEF_FORMAT_ATTRIBUTE_BOTH(PRINTF,2,2_0)
 338 DEF_FORMAT_ATTRIBUTE_BOTH(PRINTF,2,2_3)
 339 DEF_FORMAT_ATTRIBUTE_BOTH(PRINTF,3,3_0)
 340 DEF_FORMAT_ATTRIBUTE_BOTH(PRINTF,3,3_4)
 341 DEF_FORMAT_ATTRIBUTE_NOTHROW(PRINTF,4,4_0)
 342 DEF_FORMAT_ATTRIBUTE_NOTHROW(PRINTF,4,4_5)
 343 DEF_FORMAT_ATTRIBUTE_NOTHROW(PRINTF,5,5_0)
 344 DEF_FORMAT_ATTRIBUTE_NOTHROW(PRINTF,5,5_6)
 345
 346 /* Attributes for fprintf(f, f, va).  */
 347 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,1,1_2)
 348 /* Attributes for v{f,s}printf(d, f, va).  vsprintf is nothrow, vfprintf
 349    is not.  */
 350 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,2,2_0)
 351 /* Attributes for {f,s}printf(d, f, ...).  sprintf is nothrow, fprintf
 352    is not.  */
 353 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,2,2_3)
 354 /* Attributes for vprintf_chk.  */
 355 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,3,3_0)
 356 /* Attributes for printf_chk.  */
 357 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,3,3_4)
 358 /* Attributes for v{f,s}printf_chk(d, t, bos, f, va).  vsprintf_chk is
 359    nothrow, vfprintf_chk is not.  */
 360 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,4,4_0)
 361 /* Attributes for {f,s}printf_chk(d, t, bos, f, ...).  sprintf_chk is
 362    nothrow, fprintf_chk is not.  */
 363 DEF_FORMAT_ATTRIBUTE_NONNULL(PRINTF,4,4_5)
 364
 365 DEF_FORMAT_ATTRIBUTE(SCANF,1,1_0)
 366 DEF_FORMAT_ATTRIBUTE(SCANF,1,1_2)
 367 DEF_FORMAT_ATTRIBUTE_BOTH(SCANF,2,2_0)
 368 DEF_FORMAT_ATTRIBUTE_BOTH(SCANF,2,2_3)
 369 DEF_FORMAT_ATTRIBUTE_NOTHROW(STRFTIME,3,3_0)
 370 DEF_FORMAT_ATTRIBUTE_NOTHROW(STRFMON,3,3_4)
 371 #undef DEF_FORMAT_ATTRIBUTE
 372 #undef DEF_FORMAT_ATTRIBUTE_NOTHROW
 373 #undef DEF_FORMAT_ATTRIBUTE_BOTH
 374
 375 /* Transactional memory variants of the above.  */
 376
 377 DEF_ATTR_TREE_LIST (ATTR_TM_NOTHROW_LIST,
 378                     ATTR_TM_REGPARM, ATTR_NULL, ATTR_NOTHROW_LIST)
 379 DEF_ATTR_TREE_LIST (ATTR_TM_TMPURE_NOTHROW_LIST,
 380                     ATTR_TM_TMPURE, ATTR_NULL, ATTR_TM_NOTHROW_LIST)
 381 DEF_ATTR_TREE_LIST (ATTR_TM_PURE_TMPURE_NOTHROW_LIST,
 382                     ATTR_PURE, ATTR_NULL, ATTR_TM_TMPURE_NOTHROW_LIST)
 383 DEF_ATTR_TREE_LIST (ATTR_TM_NORETURN_NOTHROW_LIST,
 384                     ATTR_TM_REGPARM, ATTR_NULL, ATTR_NORETURN_NOTHROW_LIST)
 385 DEF_ATTR_TREE_LIST (ATTR_TM_CONST_NOTHROW_LIST,
 386                     ATTR_TM_REGPARM, ATTR_NULL, ATTR_CONST_NOTHROW_LIST)
 387 DEF_ATTR_TREE_LIST (ATTR_TM_NOTHROW_RT_LIST,
 388                     ATTR_RETURNS_TWICE, ATTR_NULL, ATTR_TM_NOTHROW_LIST)
 389
 390 /* Same attributes used for BUILT_IN_MALLOC except with TM_PURE thrown in.  */
 391 DEF_ATTR_TREE_LIST (ATTR_TMPURE_MALLOC_NOTHROW_LIST,
 392                    ATTR_TM_TMPURE, ATTR_NULL, ATTR_MALLOC_NOTHROW_LIST)
 393 /* Same attributes used for BUILT_IN_FREE except with TM_PURE thrown in.  */
 394 DEF_ATTR_TREE_LIST (ATTR_TMPURE_NOTHROW_LIST,
 395                    ATTR_TM_TMPURE, ATTR_NULL, ATTR_NOTHROW_LIST)
 396
 397 DEF_ATTR_TREE_LIST (ATTR_TMPURE_NOTHROW_LEAF_LIST,
 398                     ATTR_TM_TMPURE, ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
 399 DEF_ATTR_TREE_LIST (ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST,
 400                     ATTR_TM_TMPURE, ATTR_NULL, ATTR_NORETURN_NOTHROW_LEAF_LIST)
 401 DEF_ATTR_TREE_LIST (ATTR_TMPURE_NORETURN_NOTHROW_LEAF_COLD_LIST,
 402                     ATTR_COLD, ATTR_NULL,
 403                     ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
 404
 405 /* Construct a tree for a format_arg attribute.  */
 406 #define DEF_FORMAT_ARG_ATTRIBUTE(FA)                                    \
 407   DEF_ATTR_TREE_LIST (ATTR_FORMAT_ARG_##FA, ATTR_FORMAT_ARG,            \
 408                       ATTR_LIST_##FA, ATTR_NOTHROW_NONNULL_##FA)
 409 DEF_FORMAT_ARG_ATTRIBUTE(1)
 410 DEF_FORMAT_ARG_ATTRIBUTE(2)
 411 #undef DEF_FORMAT_ARG_ATTRIBUTE
 412