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 nonnull_return_data {
  61         struct source_location location;
  62         struct source_location attr_location;
  63 };
  64
  65 struct vla_bound_data {
  66         struct source_location location;
  67         struct type_descriptor *type;
  68 };
  69
  70 struct out_of_bounds_data {
  71         struct source_location location;
  72         struct type_descriptor *array_type;
  73         struct type_descriptor *index_type;
  74 };
  75
  76 struct shift_out_of_bounds_data {
  77         struct source_location location;
  78         struct type_descriptor *lhs_type;
  79         struct type_descriptor *rhs_type;
  80 };
  81
  82 struct unreachable_data {
  83         struct source_location location;
  84 };
  85
  86 struct invalid_value_data {
  87         struct source_location location;
  88         struct type_descriptor *type;
  89 };
  90
  91 #if defined(CONFIG_ARCH_SUPPORTS_INT128) && defined(__SIZEOF_INT128__)
  92 typedef __int128 s_max;
  93 typedef unsigned __int128 u_max;
  94 #else
  95 typedef s64 s_max;
  96 typedef u64 u_max;
  97 #endif
  98
  99 #endif