lib/ubsan.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LIB_UBSAN_H
   3 #define _LIB_UBSAN_H
   4
   5 enum {
   6         type_kind_int = 0,
   7         type_kind_float = 1,
   8         type_unknown = 0xffff
   9 };
  10
  11 struct type_descriptor {
  12         u16 type_kind;
  13         u16 type_info;
  14         char type_name[1];
  15 };
  16
  17 struct source_location {
  18         const char *file_name;
  19         union {
  20                 unsigned long reported;
  21                 struct {
  22                         u32 line;
  23                         u32 column;
  24                 };
  25         };
  26 };
  27
  28 struct overflow_data {
  29         struct source_location location;
  30         struct type_descriptor *type;
  31 };
  32
  33 struct type_mismatch_data {
  34         struct source_location location;
  35         struct type_descriptor *type;
  36         unsigned long alignment;
  37         unsigned char type_check_kind;
  38 };
  39
  40 struct type_mismatch_data_v1 {
  41         struct source_location location;
  42         struct type_descriptor *type;
  43         unsigned char log_alignment;
  44         unsigned char type_check_kind;
  45 };
  46
  47 struct type_mismatch_data_common {
  48         struct source_location *location;
  49         struct type_descriptor *type;
  50         unsigned long alignment;
  51         unsigned char type_check_kind;
  52 };
  53
  54 struct nonnull_arg_data {
  55         struct source_location location;
  56         struct source_location attr_location;
  57         int arg_index;
  58 };
  59
  60 struct out_of_bounds_data {
  61         struct source_location location;
  62         struct type_descriptor *array_type;
  63         struct type_descriptor *index_type;
  64 };
  65
  66 struct shift_out_of_bounds_data {
  67         struct source_location location;
  68         struct type_descriptor *lhs_type;
  69         struct type_descriptor *rhs_type;
  70 };
  71
  72 struct unreachable_data {
  73         struct source_location location;
  74 };
  75
  76 struct invalid_value_data {
  77         struct source_location location;
  78         struct type_descriptor *type;
  79 };
  80
  81 #if defined(CONFIG_ARCH_SUPPORTS_INT128) && defined(__SIZEOF_INT128__)
  82 typedef __int128 s_max;
  83 typedef unsigned __int128 u_max;
  84 #else
  85 typedef s64 s_max;
  86 typedef u64 u_max;
  87 #endif
  88
  89 #endif