Comment 31 for bug 1640518

gdb shows the abort is from the shim library too:

bergner@ampere:~$ gdb -q ./a.out
Reading symbols from ./a.out...(no debugging symbols found)...done.
(gdb) set environment LD_PRELOAD=./libbar.so.1
(gdb) run
Starting program: /home/bergner/a.out
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/powerpc64le-linux-gnu/libthread_db.so.1".

Program received signal SIGABRT, Aborted.
0x00003fffb7b3f27c in __GI_raise (sig=<optimized out>) at ../sysdeps/unix/sysv/linux/raise.c:54
54 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0 0x00003fffb7b3f27c in __GI_raise (sig=<optimized out>) at ../sysdeps/unix/sysv/linux/raise.c:54
#1 0x00003fffb7b418f4 in __GI_abort () at abort.c:89
#2 0x00003fffb7f507e4 in pthread_mutex_lock () from ./libbar.so.1
#3 0x0000000010000954 in __gthread_mutex_lock(pthread_mutex_t*) ()
#4 0x0000000010000b10 in std::mutex::lock() ()
#5 0x0000000010000be8 in std::lock_guard<std::mutex>::lock_guard(std::mutex&) ()
#6 0x0000000010000a80 in main ()
(gdb)