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Made ".SH UNDOCUMENTED" into ".SS Undocumented" and relocated under NOTES
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@ -475,6 +475,16 @@ See
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.BR signal (7)
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.BR signal (7)
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for a list of the async-signal-safe functions that can be
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for a list of the async-signal-safe functions that can be
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safely called inside from inside a signal handler.
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safely called inside from inside a signal handler.
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.SS Undocumented
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Before the introduction of
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.B SA_SIGINFO
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it was also possible to get some additional information,
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namely by using a
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.I sa_handler
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with second argument of type
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.IR "struct sigcontext".
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See the relevant kernel sources for details.
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This use is obsolete now.
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.SH BUGS
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.SH BUGS
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In kernels up to and including 2.6.13, specifying
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In kernels up to and including 2.6.13, specifying
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.B SA_NODEFER
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.B SA_NODEFER
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@ -487,16 +497,6 @@ This bug is was fixed in kernel 2.6.14.
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.SH "CONFORMING TO"
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.SH "CONFORMING TO"
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POSIX.1-2001, SVr4.
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POSIX.1-2001, SVr4.
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.\" SVr4 does not document the EINTR condition.
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.\" SVr4 does not document the EINTR condition.
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.SH UNDOCUMENTED
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Before the introduction of
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.B SA_SIGINFO
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it was also possible to get some additional information,
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namely by using a
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.I sa_handler
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with second argument of type
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.IR "struct sigcontext".
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See the relevant kernel sources for details.
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This use is obsolete now.
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.SH "SEE ALSO"
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.SH "SEE ALSO"
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.BR kill (1),
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.BR kill (1),
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.BR kill (2),
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.BR kill (2),
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