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List:       linux-man
Subject:    Re: ptrace(PTRACE_SYSCALL) and data field
From:       Michael Kerrisk <mtk.manpages () googlemail ! com>
Date:       2009-03-30 0:38:33
Message-ID: cfd18e0f0903291738j650868b5xe1ff345a182e9ae3 () mail ! gmail ! com
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On Wed, Mar 18, 2009 at 4:46 PM, Mike Frysinger <vapier@gentoo.org> wrote:
> the ptrace(2) page doesnt say anything about the data field (ignored or
> otherwise).  it seems to be ignored, but i didnt trace the kernel
> exhaustively.  the examples found via google shows that it's ignored.  strace
> usage seems odd (it passes in an irrelevant pointer), which would indicate
> it's ignored as well ...
> -mike

Mike,

For man-pages-3.20, I've upated the PTRACE_SYSCALL documentation to
note that 'data' is used as for PTRACE_CONT.  I've also added similar
text to PTRAC_SYSEMU*.

Cheers,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
git://git.kernel.org/pub/scm/docs/man-pages/man-pages.git
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