1 /* UndefinedBehaviorSanitizer, undefined behavior detector. 2 Copyright (C) 2013-2021 Free Software Foundation, Inc. 3 Contributed by Marek Polacek <polacek@redhat.com> 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 3, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #ifndef GCC_UBSAN_H 22 #define GCC_UBSAN_H 23 24 /* The various kinds of NULL pointer checks. */ 25 enum ubsan_null_ckind { 26 UBSAN_LOAD_OF, 27 UBSAN_STORE_OF, 28 UBSAN_REF_BINDING, 29 UBSAN_MEMBER_ACCESS, 30 UBSAN_MEMBER_CALL, 31 UBSAN_CTOR_CALL, 32 UBSAN_DOWNCAST_POINTER, 33 UBSAN_DOWNCAST_REFERENCE, 34 UBSAN_UPCAST, 35 UBSAN_CAST_TO_VBASE 36 }; 37 38 /* This controls how ubsan prints types. Used in ubsan_type_descriptor. */ 39 enum ubsan_print_style { 40 UBSAN_PRINT_NORMAL, 41 UBSAN_PRINT_POINTER, 42 UBSAN_PRINT_ARRAY 43 }; 44 45 /* This controls ubsan_encode_value behavior. */ 46 enum ubsan_encode_value_phase { 47 UBSAN_ENCODE_VALUE_GENERIC, 48 UBSAN_ENCODE_VALUE_GIMPLE, 49 UBSAN_ENCODE_VALUE_RTL 50 }; 51 52 extern bool ubsan_expand_bounds_ifn (gimple_stmt_iterator *); 53 extern bool ubsan_expand_null_ifn (gimple_stmt_iterator *); 54 extern bool ubsan_expand_objsize_ifn (gimple_stmt_iterator *); 55 extern bool ubsan_expand_ptr_ifn (gimple_stmt_iterator *); 56 extern bool ubsan_expand_vptr_ifn (gimple_stmt_iterator *); 57 extern bool ubsan_instrument_unreachable (gimple_stmt_iterator *); 58 extern tree ubsan_create_data (const char *, int, const location_t *, ...); 59 extern tree ubsan_type_descriptor (tree, ubsan_print_style 60 = UBSAN_PRINT_NORMAL); 61 extern tree ubsan_encode_value (tree, ubsan_encode_value_phase 62 = UBSAN_ENCODE_VALUE_GENERIC); 63 extern bool is_ubsan_builtin_p (tree); 64 extern tree ubsan_build_overflow_builtin (tree_code, location_t, tree, tree, 65 tree, tree *); 66 extern tree ubsan_instrument_float_cast (location_t, tree, tree); 67 extern tree ubsan_get_source_location_type (void); 68 69 #endif /* GCC_UBSAN_H */ 70