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Document pl_siginfo and PT_FLAG_SI for PT_LWPINFO.

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MFC after:	1 month
This commit is contained in:
Konstantin Belousov 2010-07-10 14:31:44 +00:00
parent 9a9bce34f1
commit cefac16712
1 changed files with 20 additions and 4 deletions
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24
lib/libc/sys/ptrace.2
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@ -2,7 +2,7 @@
.\" $NetBSD: ptrace.2,v 1.2 1995/02/27 12:35:37 cgd Exp $
.\"
.\" This file is in the public domain.
.Dd May 24, 2010
.Dd July 10, 2010
.Dt PTRACE 2
.Os
.Sh NAME
@ -294,6 +294,7 @@ struct ptrace_lwpinfo {
int pl_flags;
sigset_t pl_sigmask;
sigset_t pl_siglist;
siginfo_t pl_siginfo;
};
.Ed
.Pp
@ -338,13 +339,28 @@ program being executed by debuggee process has been changed by succesful
execution of a system call from the
.Fn execve 2
family.
.It PL_FLAG_SI
Indicates that
.Va pl_siginfo
member of
.Vt "struct ptrace_lwpinfo"
contains valid information.
.El
.It pl_sigmask
The current signal mask of the LWP
.It pl_siglist
The current pending set of signals for the LWP. Note that signals that
are delivered to the process would not appear on an LWP siglist until
the thread is selected for delivery.
The current pending set of signals for the LWP.
Note that signals that are delivered to the process would not appear
on an LWP siglist until the thread is selected for delivery.
.It pl_siginfo
The siginfo that accompanies the signal pending.
Only valid for
.Dv PL_EVENT_SIGNAL
kind of stop, when
.Va pl_flags
has
.Dv PL_FLAG_SI
set.
.El
.It PT_GETNUMLWPS
This request returns the number of kernel threads associated with the