When I add the abort and use your C++ test case, I see the abort:
bergner@ampere:~$ cat pthread_mutex_lock.c
#include <stdlib.h>
#include <pthread.h>
#define PTHREAD_MUTEX_NO_ELISION_NP 512
extern int __pthread_mutex_lock (pthread_mutex_t *);
int
pthread_mutex_lock (pthread_mutex_t *mutex)
{
abort();
mutex->__data.__kind |= PTHREAD_MUTEX_NO_ELISION_NP;
return __pthread_mutex_lock (mutex);
}
bergner@ampere:~$ gcc -fPIC -c pthread_mutex_lock.c
bergner@ampere:~$ gcc -shared -Wl,-soname,libbar.so.1 -o libbar.so.1
pthread_mutex_lock.o
bergner@ampere:~$ cat foo.cpp
#include <mutex>
int main(int argc, char* argv[]) {
std::mutex m;
std::lock_guard<std::mutex> guard(m);
return EXIT_SUCCESS;
}
bergner@ampere:~$ g++ -std=c++11 -pthread foo.cpp
bergner@ampere:~$ ./a.out
bergner@ampere:~$ LD_PRELOAD=./libbar.so.1 ./a.out
Aborted
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https://bugs.launchpad.net/bugs/1640518
Title:
MongoDB Memory corruption
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