...kernel provides it. SEE ALSO kill (2), restart_syscall (2), sigaltstack (2), signal (2), getcontext (3), signal (7), vdso (7)...kernel provides it. SEE ALSO kill (2), restart_syscall (2), sigaltstack (2), signal (2), getcontext (3), signal (7), vdso (7)...ls, see sigreturn (2). Further information about the ucontext_t structure can be found in getcontext (3) and signal (7). Commonly, the handler function doesn't make any use of t…...ls, see sigreturn (2). Further information about the ucontext_t structure can be found in getcontext (3) and signal (7). Commonly, the handler function doesn't make any use of t…