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clone.2: Rewrite crufty text about number of args in older version of clone() 

Some bit rot had crept in regarding the discussion of the
    number of arguments in older versions of this syscall.
    Simplify the text to just say that Linux 2.4 and earlier
    didn't have ptid, tls, and ctid arguments.

    See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=533868

    Reported-by: Shachar Shemesh <shachar@debian.org>

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2009-06-21 15:30:21 +02:00
parent d3dbc9b11a
commit 577f9b624b
1 changed files with 7 additions and 12 deletions
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19
man2/clone.2
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@ -780,18 +780,13 @@ In this case, for correct operation, the
.B CLONE_VM
option should not be specified.
Since Linux 2.5.49 the system call has five arguments.
The two new arguments are
.I ptid
which points to the location (in parent and child memory) where
the child thread ID will be written in case
.B CLONE_PARENT_SETTID
was specified, and
.I ctid
which points to the location (in child memory) where the child thread ID
will be written in case
.B CLONE_CHILD_SETTID
was specified.
In Linux 2.4 and earlier,
.BR clone ()
does not take arguments
.IR ptid ,
.IR tls ,
and
.IT ctid .
.SH "RETURN VALUE"
.\" gettid(2) returns current->pid;
.\" getpid(2) returns current->tgid;