Date: Fri, 21 Sep 2012 12:38:52 +0000 (UTC) From: Jilles Tjoelker <jilles@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r240778 - stable/8/share/man/man3 Message-ID: <201209211238.q8LCcqFt034922@svn.freebsd.org>
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Author: jilles Date: Fri Sep 21 12:38:52 2012 New Revision: 240778 URL: http://svn.freebsd.org/changeset/base/240778 Log: siginfo(3): Document SI_USER and SI_KERNEL signal codes. Different from stable/9 and head, do not mention pthread_kill(3), which generates a different code (SI_USER) in stable/8. Modified: stable/8/share/man/man3/siginfo.3 Directory Properties: stable/8/share/man/man3/ (props changed) Modified: stable/8/share/man/man3/siginfo.3 ============================================================================== --- stable/8/share/man/man3/siginfo.3 Fri Sep 21 12:33:25 2012 (r240777) +++ stable/8/share/man/man3/siginfo.3 Fri Sep 21 12:38:52 2012 (r240778) @@ -27,7 +27,7 @@ .\" .\" $FreeBSD$ .\" -.Dd December 8, 2005 +.Dd September 14, 2012 .Dt SIGINFO 3 .Os .Sh NAME @@ -195,6 +195,8 @@ signal generated by expiration of a time signal generated by completion of an asynchronous I/O request .It Ta Dv SI_MESGQ Ta signal generated by arrival of a message on an empty message queue +.It Ta Dv SI_KERNEL Ta +signal generated by miscellaneous parts of the kernel .El .Pp In addition, the following signal-specific information is available: @@ -235,6 +237,10 @@ or Finally, the following code-specific information is available: .Bl -column ".Dv SI_QUEUE" ".Va si_overrun" .It Sy "Code Member Value" +.It Dv SI_USER Ta Va si_pid Ta +the process ID that sent the signal +.It Ta Va si_uid Ta +real user ID of the process that sent the signal .It Dv SI_QUEUE Ta Va si_value Ta the value passed to .Xr sigqueue 2 @@ -281,6 +287,14 @@ signal is queued when a process changed .Tn POSIX Realtime Extensions like aio, timer, and message queue also queue signals. +Signals with code +.Dv SI_USER +or +.Dv SI_KERNEL +are only queued if there are sufficient resources; +otherwise, +.Dv SI_NOINFO +results. For some hardware architectures, the exact value of .Va si_addr might not be available. @@ -304,6 +318,12 @@ Full support for .Tn POSIX signal information first appeared in .Fx 7.0 . +The codes +.Dv SI_USER +and +.Dv SI_KERNEL +can be generated as of +.Fx 8.1 . .Sh AUTHORS This manual page was written by .An "David Xu" Aq davidxu@FreeBSD.org .
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