#include <stdlib.h>
#include <stdio.h>
#include <dlfcn.h>
#include <unistd.h>

#define LLTNG_UST_LIB "/usr/lib64/liblttng-ust.so.0"

int main(int argc, char **argv) {
    int ret;
    char exe[1024];
    void *handle;

    ret = readlink("/proc/self/exe", exe, sizeof(exe)-1);
    if (ret == -1) {
        fprintf(stderr, "ERROR readlink\n");
        exit(1);
    }
    exe[ret] = 0;

    fprintf(stderr, "Delete %s\n", exe);
    ret = remove(exe);
    if (ret == -1) {
        fprintf(stderr, "ERROR remove");
        exit(1);
    }

    ret = readlink("/proc/self/exe", exe, sizeof(exe)-1);
    if (ret == -1) {
        fprintf(stderr, "ERROR readlink\n");
        exit(1);
    }
    exe[ret] = 0;
    fprintf(stderr, "New /proc/self/exe link: \"%s\"\n", exe);

    fprintf(stderr, "Loading %s\n", LLTNG_UST_LIB);
    handle = dlopen(LLTNG_UST_LIB, RTLD_LAZY);
    if (!handle) {
        fprintf(stderr, "ERROR dlopen: %s\n", dlerror());
        exit(1);
    }
    fprintf(stderr, "lttng-ust loaded\n");

    dlclose(handle);
    fprintf(stderr, "lttng-ust unloaded\n");
}