manual: SA_ONSTACK is ignored without alternate stack

The current stack is used.  No SIGILL is generated.

diff --git a/manual/signal.texi b/manual/signal.texi
index 8a12baf..5c2ba7d 100644 (file)
--- a/manual/signal.texi
+++ b/manual/signal.texi
@@ -1329,7 +1329,7 @@ Setting this flag for a signal other than @code{SIGCHLD} has no effect.
 If this flag is set for a particular signal number, the system uses the
 signal stack when delivering that kind of signal.  @xref{Signal Stack}.
 If a signal with this flag arrives and you have not set a signal stack,
-the system terminates the program with @code{SIGILL}.
+the normal user stack is used instead, as if the flag had not been set.
 @end deftypevr
 
 @deftypevr Macro int SA_RESTART