x64 / ntdllntoskrnl /

_SM_LOG_ENTRY_FLAGS

← 6.1.7601.17514 2 builds latest →
union _SM_LOG_ENTRY_FLAGS;/* opaque */

Declared but not defined in ntoskrnl's public PDB for this build: a forward declaration, or a name that only appears in mangled C++ symbols. The layout isn't public here.