#include <sys/types.h>
#include <sys/sysctl.h>

#define KERN_PANICINFO_TEST (KERN_PANICINFO_IMAGE + 2)

int
main(void)
{
    size_t oldnewlen = 0;
    int mib[3] = { CTL_KERN, KERN_PANICINFO, KERN_PANICINFO_TEST };

    return sysctl(mib, 3, NULL, (void *)&oldnewlen, NULL, oldnewlen);
}