/* Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc. Contributed by Joseph Myers . This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* This header provides a declarative way of describing the attributes that are applied to some functions by default. Before including this header, you must define the following macros. In each case where there is an ENUM, it is an identifier used to reference the tree in subsequent definitions. DEF_ATTR_NULL_TREE (ENUM) Constructs a NULL_TREE. DEF_ATTR_INT (ENUM, VALUE) Constructs an INTEGER_CST with value VALUE (an integer representable in HOST_WIDE_INT). DEF_ATTR_IDENT (ENUM, STRING) Constructs an IDENTIFIER_NODE for STRING. DEF_ATTR_TREE_LIST (ENUM, PURPOSE, VALUE, CHAIN) Constructs a TREE_LIST with given PURPOSE, VALUE and CHAIN (given as previous ENUM names). */ DEF_ATTR_NULL_TREE (ATTR_NULL) /* Construct a tree for a given integer and a list containing it. */ #define DEF_ATTR_FOR_INT(VALUE) \ DEF_ATTR_INT (ATTR_##VALUE, VALUE) \ DEF_ATTR_TREE_LIST (ATTR_LIST_##VALUE, ATTR_NULL, \ ATTR_##VALUE, ATTR_NULL) DEF_ATTR_FOR_INT (0) DEF_ATTR_FOR_INT (1) DEF_ATTR_FOR_INT (2) DEF_ATTR_FOR_INT (3) DEF_ATTR_FOR_INT (4) #undef DEF_ATTR_FOR_INT /* Construct a tree for a list of two integers. */ #define DEF_LIST_INT_INT(VALUE1, VALUE2) \ DEF_ATTR_TREE_LIST (ATTR_LIST_##VALUE1##_##VALUE2, ATTR_NULL, \ ATTR_##VALUE1, ATTR_LIST_##VALUE2) DEF_LIST_INT_INT (1,0) DEF_LIST_INT_INT (1,2) DEF_LIST_INT_INT (2,0) DEF_LIST_INT_INT (2,3) DEF_LIST_INT_INT (3,0) DEF_LIST_INT_INT (3,4) #undef DEF_LIST_INT_INT /* Construct trees for identifiers. */ DEF_ATTR_IDENT (ATTR_CONST, "const") DEF_ATTR_IDENT (ATTR_FORMAT, "format") DEF_ATTR_IDENT (ATTR_FORMAT_ARG, "format_arg") DEF_ATTR_IDENT (ATTR_MALLOC, "malloc") DEF_ATTR_IDENT (ATTR_NONNULL, "nonnull") DEF_ATTR_IDENT (ATTR_NORETURN, "noreturn") DEF_ATTR_IDENT (ATTR_NOTHROW, "nothrow") DEF_ATTR_IDENT (ATTR_PRINTF, "printf") DEF_ATTR_IDENT (ATTR_ASM_FPRINTF, "asm_fprintf") DEF_ATTR_IDENT (ATTR_GCC_DIAG, "gcc_diag") DEF_ATTR_IDENT (ATTR_GCC_CDIAG, "gcc_cdiag") DEF_ATTR_IDENT (ATTR_GCC_CXXDIAG, "gcc_cxxdiag") DEF_ATTR_IDENT (ATTR_PURE, "pure") DEF_ATTR_IDENT (ATTR_SCANF, "scanf") DEF_ATTR_IDENT (ATTR_SENTINEL, "sentinel") DEF_ATTR_IDENT (ATTR_STRFMON, "strfmon") DEF_ATTR_IDENT (ATTR_STRFTIME, "strftime") DEF_ATTR_TREE_LIST (ATTR_NOTHROW_LIST, ATTR_NOTHROW, ATTR_NULL, ATTR_NULL) DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_LIST, ATTR_CONST, \ ATTR_NULL, ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_LIST, ATTR_PURE, \ ATTR_NULL, ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LIST, ATTR_NORETURN, \ ATTR_NULL, ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_LIST, ATTR_MALLOC, \ ATTR_NULL, ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_SENTINEL_NOTHROW_LIST, ATTR_SENTINEL, \ ATTR_NULL, ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_NONNULL_1, ATTR_NONNULL, ATTR_LIST_1, ATTR_NULL) DEF_ATTR_TREE_LIST (ATTR_NONNULL_2, ATTR_NONNULL, ATTR_LIST_2, ATTR_NULL) /* Functions whose first and second parameters are nonnull pointers. */ DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_2, ATTR_NONNULL, ATTR_LIST_2, \ ATTR_NONNULL_1) /* Functions whose first and fourth parameters are nonnull pointers. */ DEF_ATTR_TREE_LIST (ATTR_NONNULL_1_4, ATTR_NONNULL, ATTR_LIST_4, \ ATTR_NONNULL_1) DEF_ATTR_TREE_LIST (ATTR_NOTHROW_SENTINEL_1, ATTR_SENTINEL, ATTR_LIST_1, \ ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1, ATTR_NONNULL, ATTR_LIST_1, \ ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_2, ATTR_NONNULL, ATTR_LIST_2, \ ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_3, ATTR_NONNULL, ATTR_LIST_3, \ ATTR_NOTHROW_LIST) /* Nothrow functions whose first and second parameters are nonnull pointers. */ DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_2, ATTR_NONNULL, ATTR_LIST_2, \ ATTR_NOTHROW_NONNULL_1) /* Nothrow functions whose first and fourth parameters are nonnull pointers. */ DEF_ATTR_TREE_LIST (ATTR_NOTHROW_NONNULL_1_4, ATTR_NONNULL, ATTR_LIST_4, \ ATTR_NOTHROW_NONNULL_1) /* Nothrow const functions whose first parameter is a nonnull pointer. */ DEF_ATTR_TREE_LIST (ATTR_CONST_NOTHROW_NONNULL_1, ATTR_CONST, ATTR_NULL, \ ATTR_NOTHROW_NONNULL_1) /* Nothrow pure functions whose first parameter is a nonnull pointer. */ DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_NONNULL_1, ATTR_PURE, ATTR_NULL, \ ATTR_NOTHROW_NONNULL_1) /* Nothrow pure functions whose first and second parameters are nonnull pointers. */ DEF_ATTR_TREE_LIST (ATTR_PURE_NOTHROW_NONNULL_1_2, ATTR_PURE, ATTR_NULL, \ ATTR_NOTHROW_NONNULL_1_2) /* Nothrow malloc functions whose first parameter is a nonnull pointer. */ DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_NONNULL_1, ATTR_MALLOC, ATTR_NULL, \ ATTR_NOTHROW_NONNULL_1) /* Construct a tree for a format attribute. */ #define DEF_FORMAT_ATTRIBUTE(TYPE, FA, VALUES) \ DEF_ATTR_TREE_LIST (ATTR_##TYPE##_##VALUES, ATTR_NULL, \ ATTR_##TYPE, ATTR_LIST_##VALUES) \ DEF_ATTR_TREE_LIST (ATTR_FORMAT_##TYPE##_##VALUES, ATTR_FORMAT, \ ATTR_##TYPE##_##VALUES, ATTR_NOTHROW_NONNULL_##FA) DEF_FORMAT_ATTRIBUTE(PRINTF,1,1_0) DEF_FORMAT_ATTRIBUTE(PRINTF,1,1_2) DEF_FORMAT_ATTRIBUTE(PRINTF,2,2_0) DEF_FORMAT_ATTRIBUTE(PRINTF,2,2_3) DEF_FORMAT_ATTRIBUTE(PRINTF,3,3_0) DEF_FORMAT_ATTRIBUTE(PRINTF,3,3_4) DEF_FORMAT_ATTRIBUTE(SCANF,1,1_0) DEF_FORMAT_ATTRIBUTE(SCANF,1,1_2) DEF_FORMAT_ATTRIBUTE(SCANF,2,2_0) DEF_FORMAT_ATTRIBUTE(SCANF,2,2_3) DEF_FORMAT_ATTRIBUTE(STRFTIME,3,3_0) DEF_FORMAT_ATTRIBUTE(STRFMON,3,3_4) #undef DEF_FORMAT_ATTRIBUTE /* Construct a tree for a format_arg attribute. */ #define DEF_FORMAT_ARG_ATTRIBUTE(FA) \ DEF_ATTR_TREE_LIST (ATTR_FORMAT_ARG_##FA, ATTR_FORMAT_ARG, \ ATTR_LIST_##FA, ATTR_NOTHROW_NONNULL_##FA) DEF_FORMAT_ARG_ATTRIBUTE(1) DEF_FORMAT_ARG_ATTRIBUTE(2) #undef DEF_FORMAT_ARG_ATTRIBUTE