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Bug #1171 ยป lttng_ust_elf_test.c

Stefan Palade, 11/14/2018 01:35 PM

 
#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");
}

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