- x64 and ARM64 inline assembly in gcc
- Working without any standard libraries
- Modifying the Local Descriptor Table and loading a LDT selector into FS on x64
- Setting the FS.base Machine Specific Register on x64
- Setting the tpidr_el0 register for TLS on ARM64
- Accessing variables in the Thread-Local Storage
- Cloning threads
- Waiting for a thread to exit, futexes