rumphijack_dlsym
void *rumphijack_dlsym(void *, const char *)
if ((host_##_name_ = rumphijack_dlsym(RTLD_NEXT, \
if (rumphijack_dlsym == rumpclient__dlsym) \
host_mmap = rumphijack_dlsym(RTLD_NEXT, "mmap");
op___sysctl = rumphijack_dlsym(RTLD_NEXT, "__sysctl");
void *rumphijack_dlsym(void *, const char *);