.`glibc pthread_gettid_np` function added to `libc_nonshared.a` Previously, there was no direct method to obtain the Linux task or thread ID (TID) from a glibc ‎`pthread_t` handle. The newly implemented ‎`pthread_gettid_np` function, declared in ‎`<pthread.h>` when ‎`_GNU_SOURCE` is defined, now allows applications that require TID, such as those using ‎`sched_setattr`, to retrieve the TID value directly from a ‎`pthread_t` handle. As a result, applications can now use functions that expect a TID after obtaining it from a ‎`pthread_t` handle, improving compatibility and simplifying thread management.