1  /* UndefinedBehaviorSanitizer, undefined behavior detector.
       2     Copyright (C) 2013-2023 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  extern tree sanitize_unreachable_fn (tree *data, location_t loc);
      69  
      70  #endif  /* GCC_UBSAN_H  */