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 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.
FILES
/usr/src/linux/arch/i386/kernel/signal.c
/usr/src/linux/arch/alpha/kernel/entry.S
CONFORMING TO
sigreturn
() is specific to
Linux and should not be used in programs intended to be
portable.
NOTES
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.
SEE ALSO
kill(2), signal(2), signal(7)
Copyright (C) 1995, Thomas K. Dyas <tdyas@eden.rutgers.edu>
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manual page may be incorrect or out-of-date. The author(s) assume no
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Formatted or processed versions of this manual, if unaccompanied by
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Created Sat Aug 21 1995 Thomas K. Dyas <tdyas@eden.rutgers.edu>
Modified Tue Oct 22 22:09:03 1996 by Eric S. Raymond <esr@thyrsus.com>
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