Rémi Bernon (@rbernon) commented about dlls/ntoskrnl.exe/tests/driver_pnp.c:
#include "driver.h" #include "utils.h"
+/* memcmp() isn't exported from ntoskrnl on i386 */ +static int kmemcmp( const void *ptr1, const void *ptr2, size_t n )
Fwiw you can use `RtlCompareMemory`.