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// Check that if the list of shared libraries changes between the two race
// reports, the second report occurring in a new shared library is still
// symbolized correctly.
// RUN: %clangxx_tsan -O1 %p/SharedLibs/load_shared_lib-so.cc \
// RUN: -fPIC -shared -o %t-so.so
// RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
#include <dlfcn.h>
#include <pthread.h>
#include <stdio.h>
#include <string>
int GLOB = 0;
void *write_glob(void *unused) {
GLOB++;
return NULL;
}
void race_two_threads(void *(*access_callback)(void *unused)) {
pthread_t t1, t2;
pthread_create(&t1, NULL, access_callback, NULL);
pthread_create(&t2, NULL, access_callback, NULL);
pthread_join(t1, NULL);
pthread_join(t2, NULL);
}
int main(int argc, char *argv[]) {
std::string path = std::string(argv[0]) + std::string("-so.so");
race_two_threads(write_glob);
// CHECK: write_glob
void *lib = dlopen(path.c_str(), RTLD_NOW);
if (!lib) {
printf("error in dlopen(): %s\n", dlerror());
return 1;
}
void *(*write_from_so)(void *unused);
*(void **)&write_from_so = dlsym(lib, "write_from_so");
race_two_threads(write_from_so);
// CHECK: write_from_so
return 0;
}
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