SIGRETURN(2)        Linux Programmer's Manual        SIGRETURN(2)

NAME
       sigreturn  -  return from signal handler and cleanup stack
       frame

SYNOPSIS
       int sigreturn(unsigned long __unused);

DESCRIPTION
       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
       sigreturn never returns.

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

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

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

SEE ALSO
       kill(2), signal(2), signal(7)

Linux 1.3.20              21 August 1995                        1