"Syscalls" is a topic in systems programming. You can Google "syscall faq" for example. https://blog.packagecloud.io/the-definitive-guide-to-linux-system-calls

"Syscalls" is a topic in systems programming. You can Google "syscall faq" for example. https://blog.packagecloud.io/the-definitive-guide-to-linux-system-calls/ https://blog.packagecloud.io/the-definitive-guide-to-linux-s... Understanding how syscalls are invoked from user space typically involves knowing what calling conventions are, knowing what an ABI is, etc. https://man7.org/linux/man-pages/man2/syscall.2.html https://man7.org/linux/man-pages/man2/syscall.2.html