NAME    [Toc]    [Back]

       sigreturn - return from signal handler and cleanup stack frame

SYNOPSIS    [Toc]    [Back]

       int sigreturn(unsigned long __unused);

DESCRIPTION    [Toc]    [Back]

       When  the  Linux kernel creates the stack frame for a signal handler, a
       call to sigreturn is inserted into the stack frame so that the the signal
  handler  will  call  sigreturn  upon return. This inserted call to
       sigreturn cleans up the stack so that  the  process  can  restart  from
       where it was interrupted by the signal.

RETURN VALUE    [Toc]    [Back]

       sigreturn never returns.

WARNING    [Toc]    [Back]

       The  sigreturn call is used by the kernel to implement signal handlers.
       It should never be called directly. Better yet, the specific use of the
       __unused argument varies depending on the architecture.

CONFORMING TO    [Toc]    [Back]

       sigreturn  is  specific	to  Linux  and	should not be used in programs
       intended to be portable.

FILES    [Toc]    [Back]

       /usr/src/linux/arch/i386/kernel/signal.c
       /usr/src/linux/arch/alpha/kernel/entry.S

SEE ALSO    [Toc]    [Back]

       kill(2), signal(2), signal(7)



Linux 1.3.20			  1995-08-21			  SIGRETURN(2)