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sigaction.2: Add a little info about ucontext_t 

Reported-by: Tolga Dalman <tolga.dalman@googlemail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2011-09-08 23:23:26 +02:00
parent 6cce8340a7
commit 0048657dcc
1 changed files with 6 additions and 1 deletions
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7
man2/sigaction.2
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@ -42,7 +42,7 @@
.\" 2010-06-11 Andi Kleen, add hwpoison signal extensions
.\" 2010-06-11 mtk, improvements to discussion of various siginfo_t fields.
.\"
.TH SIGACTION 2 2010-06-16 "Linux" "Linux Programmer's Manual"
.TH SIGACTION 2 2011-09-08 "Linux" "Linux Programmer's Manual"
.SH NAME
sigaction \- examine and change a signal action
.SH SYNOPSIS
@ -142,6 +142,11 @@ pointer to a
as its second argument and a pointer to a
.I ucontext_t
(cast to \fIvoid\ *\fP) as its third argument.
(Commonly, the handler function doesn't make any use of the third argument.
See
.BR getcontext (2)
for further information about
.IR ucontext_t .)
.PP
.I sa_mask
specifies a mask of signals which should be blocked