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1 /* UndefinedBehaviorSanitizer, undefined behavior detector.
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2 Copyright (C) 2013-2018 Free Software Foundation, Inc.
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3 Contributed by Marek Polacek <polacek@redhat.com>
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it under
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8 the terms of the GNU General Public License as published by the Free
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9 Software Foundation; either version 3, or (at your option) any later
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10 version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #ifndef GCC_UBSAN_H
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22 #define GCC_UBSAN_H
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23
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24 /* The various kinds of NULL pointer checks. */
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25 enum ubsan_null_ckind {
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26 UBSAN_LOAD_OF,
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27 UBSAN_STORE_OF,
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28 UBSAN_REF_BINDING,
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29 UBSAN_MEMBER_ACCESS,
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30 UBSAN_MEMBER_CALL,
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31 UBSAN_CTOR_CALL,
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32 UBSAN_DOWNCAST_POINTER,
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33 UBSAN_DOWNCAST_REFERENCE,
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34 UBSAN_UPCAST,
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35 UBSAN_CAST_TO_VBASE
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36 };
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37
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38 /* This controls how ubsan prints types. Used in ubsan_type_descriptor. */
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39 enum ubsan_print_style {
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40 UBSAN_PRINT_NORMAL,
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41 UBSAN_PRINT_POINTER,
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42 UBSAN_PRINT_ARRAY
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43 };
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44
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45 /* This controls ubsan_encode_value behavior. */
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46 enum ubsan_encode_value_phase {
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47 UBSAN_ENCODE_VALUE_GENERIC,
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48 UBSAN_ENCODE_VALUE_GIMPLE,
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49 UBSAN_ENCODE_VALUE_RTL
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50 };
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51
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52 extern bool ubsan_expand_bounds_ifn (gimple_stmt_iterator *);
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53 extern bool ubsan_expand_null_ifn (gimple_stmt_iterator *);
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54 extern bool ubsan_expand_objsize_ifn (gimple_stmt_iterator *);
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55 extern bool ubsan_expand_ptr_ifn (gimple_stmt_iterator *);
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56 extern bool ubsan_expand_vptr_ifn (gimple_stmt_iterator *);
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57 extern bool ubsan_instrument_unreachable (gimple_stmt_iterator *);
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58 extern tree ubsan_create_data (const char *, int, const location_t *, ...);
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59 extern tree ubsan_type_descriptor (tree, ubsan_print_style
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60 = UBSAN_PRINT_NORMAL);
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61 extern tree ubsan_encode_value (tree, ubsan_encode_value_phase
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62 = UBSAN_ENCODE_VALUE_GENERIC);
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63 extern bool is_ubsan_builtin_p (tree);
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64 extern tree ubsan_build_overflow_builtin (tree_code, location_t, tree, tree,
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65 tree, tree *);
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66 extern tree ubsan_instrument_float_cast (location_t, tree, tree);
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67 extern tree ubsan_get_source_location_type (void);
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68
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69 #endif /* GCC_UBSAN_H */
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