Сделайте так, например
замените /proc/kallsyms на путь к System.map

        f = fopen("/proc/kallsyms", "r");
        if (f == NULL) {
                f = fopen("/proc/ksyms", "r");
                if (f == NULL)
                        return 0;
                oldstyle = 1;
        }

например:

        f = fopen("/boot/System.map-genkernel-x86_64-2.6.35-zen2", "r");
        if (f == NULL) {
                f = fopen("/boot/System.map-genkernel-x86_64-2.6.35-zen2", "r");
                if (f == NULL)
                        return 0;
                oldstyle = 1;
        }