gistfile1.m

#import <Foundation/Foundation.h>
#import <objc/objc.h>
#import <dlfcn.h>

const char *class_getImageName(Class cls)
{
    int ok;
    Dl_info info;

    if (!cls) return NULL;

    ok = dladdr(cls, &info);
    if (ok) return info.dli_fname;
    else return NULL;
}