diff options
Diffstat (limited to 'lib/ubsan/ubsan_type_hash.h')
| -rw-r--r-- | lib/ubsan/ubsan_type_hash.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/ubsan/ubsan_type_hash.h b/lib/ubsan/ubsan_type_hash.h index 695fed905a73..aa638713f089 100644 --- a/lib/ubsan/ubsan_type_hash.h +++ b/lib/ubsan/ubsan_type_hash.h @@ -53,6 +53,10 @@ bool checkDynamicType(void *Object, void *Type, HashValue Hash); const unsigned VptrTypeCacheSize = 128; +/// A sanity check for Vtable. Offsets to top must be reasonably small +/// numbers (by absolute value). It's a weak check for Vtable corruption. +const int VptrMaxOffsetToTop = 1<<20; + /// \brief A cache of the results of checkDynamicType. \c checkDynamicType would /// return \c true (modulo hash collisions) if /// \code |