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sigaltstack.2: Give 'oss' argument a more meaningful name: 'old_ss' 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2017-05-22 15:06:04 +02:00
parent eddeadede6
commit 6635bc0197
1 changed files with 6 additions and 6 deletions
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12
man2/sigaltstack.2
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@ -30,7 +30,7 @@ sigaltstack \- set and/or get signal stack context
.SH SYNOPSIS .SH SYNOPSIS
.B #include <signal.h> .B #include <signal.h>
.sp .sp
.BI "int sigaltstack(const stack_t *" ss ", stack_t *" oss ); .BI "int sigaltstack(const stack_t *" ss ", stack_t *" old_ss );
.sp .sp
.in -4n .in -4n
Feature Test Macro Requirements for glibc (see Feature Test Macro Requirements for glibc (see
@ -79,7 +79,7 @@ on the alternate signal stack by
specifying the \fBSA_ONSTACK\fP flag. specifying the \fBSA_ONSTACK\fP flag.
.P .P
The \fIss\fP argument is used to specify a new The \fIss\fP argument is used to specify a new
alternate signal stack, while the \fIoss\fP argument alternate signal stack, while the \fIold_ss\fP argument
is used to retrieve information about the currently is used to retrieve information about the currently
established signal stack. established signal stack.
If we are interested in performing just one If we are interested in performing just one
@ -114,13 +114,13 @@ as \fBSS_DISABLE\fP.
In this case, the remaining fields In this case, the remaining fields
in \fIss\fP are ignored. in \fIss\fP are ignored.
If \fIoss\fP is not NULL, then it is used to return information about If \fIold_ss\fP is not NULL, then it is used to return information about
the alternate signal stack which was in effect prior to the the alternate signal stack which was in effect prior to the
call to call to
.BR sigaltstack (). .BR sigaltstack ().
The \fIoss.ss_sp\fP and \fIoss.ss_size\fP fields return the starting The \fIold_ss.ss_sp\fP and \fIold_ss.ss_size\fP fields return the starting
address and size of that stack. address and size of that stack.
The \fIoss.ss_flags\fP may return either of the following values: The \fIold_ss.ss_flags\fP may return either of the following values:
.TP .TP
.B SS_ONSTACK .B SS_ONSTACK
The process is currently executing on the alternate signal stack. The process is currently executing on the alternate signal stack.
@ -137,7 +137,7 @@ returns 0 on success, or \-1 on failure with
.SH ERRORS .SH ERRORS
.TP .TP
.B EFAULT .B EFAULT
Either \fIss\fP or \fIoss\fP is not NULL and points to an area Either \fIss\fP or \fIold_ss\fP is not NULL and points to an area
outside of the process's address space. outside of the process's address space.
.TP .TP
.B EINVAL .B EINVAL