Link Error when Compile c program without kernel32.lib

Question

I'm want to Create App that just use ntdll and use security check for it. but when I remove kernel32.lib or uncheck "inherit from parent or project defaults" I get link errors when I build my project. Link Errors

#include <Windows.h>
#include <processthreadsapi.h>
#include <vcruntime.h>
ULONG WINAPI NtGetCurrentProcessorNumber(void);
void main()
{
    int a = 2;
    int b = 5;
    int sum = a + b;
    int Number = NtGetCurrentProcessorNumber();
    while (1)
    {

    }
}

void NtProcessStartup(PVOID DriverObject, PVOID RegistryPath)
{
    __security_init_cookie();
    //__security_check_cookie();
    main();
}

this is a Native Project and work fine when I Remove "Security check" Switch in compiler settings and remove "__security_init_cookie" Function. this project linked to ntdll.lib

Can anyone help me?

Answer 1

When you use security checks __security_xx functions are linked to your module. The linker errors are saying that gs_support.obj (where __security_xx functions reside), requires QueryPerformanceCounter and other listed functions. QueryPerformanceCounter resides in kernel32, so you need to link with it when using security checks.